/* ============================================================
   EpiSensor Design System
   B2B IoT Infrastructure for Sustainable Energy
   ============================================================
   Light theme | Professional | Technical | Trustworthy
   ============================================================ */

/* ------------------------------------------------------------
   1. CSS VARIABLES / DESIGN TOKENS
   ------------------------------------------------------------ */

:root {
  /* Brand Colors — EpiSensor Navy + Magenta */
  --color-primary:        #002d52;
  --color-primary-dark:   #001f3b;
  --color-primary-darker: #001529;
  --color-primary-light:  #1a5276;
  --color-primary-lighter:#d6e6f2;
  --color-primary-bg:     #eef4f9;
  --color-primary-button: #002d52;

  --color-accent:         #DC0046;
  --color-accent-dark:    #b50039;
  --color-accent-light:   #ff3370;
  --color-accent-bg:      #fde8ef;

  /* Neutrals */
  --color-gray-950:       #0B1215;
  --color-gray-900:       #111B21;
  --color-gray-800:       #1E2D36;
  --color-gray-700:       #2E4451;
  --color-gray-600:       #47606F;
  --color-gray-500:       #536D7A;
  --color-gray-400:       #94ACBA;
  --color-gray-300:       #BFD0DA;
  --color-gray-200:       #DDE7ED;
  --color-gray-100:       #EEF3F6;
  --color-gray-50:        #F6F9FB;

  /* Semantic */
  --color-success:        #28a745;
  --color-warning:        #FFB703;
  --color-error:          #DC0046;
  --color-info:           #002d52;

  /* Backgrounds */
  --bg-body:              #FFFFFF;
  --bg-surface:           #FFFFFF;
  --bg-muted:             var(--color-gray-50);
  --bg-subtle:            var(--color-gray-100);
  --bg-nav:               rgba(255, 255, 255, 0.92);
  --bg-footer:            var(--color-gray-900);

  /* Text */
  --text-primary:         var(--color-gray-900);
  --text-secondary:       var(--color-gray-600);
  --text-tertiary:        var(--color-gray-500);
  --text-muted:           var(--color-gray-400);
  --text-inverse:         #FFFFFF;
  --text-link:            var(--color-primary-dark);

  /* Typography */
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:            'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;

  --text-xs:              0.75rem;    /* 12px */
  --text-sm:              0.875rem;   /* 14px */
  --text-base:            1rem;       /* 16px */
  --text-lg:              1.125rem;   /* 18px */
  --text-xl:              1.25rem;    /* 20px */
  --text-2xl:             1.5rem;     /* 24px */
  --text-3xl:             1.875rem;   /* 30px */
  --text-4xl:             2.25rem;    /* 36px */
  --text-5xl:             3rem;       /* 48px */
  --text-6xl:             3.75rem;    /* 60px */

  --leading-tight:        1.2;
  --leading-snug:         1.35;
  --leading-normal:       1.6;
  --leading-relaxed:      1.75;

  --tracking-tight:       -0.025em;
  --tracking-normal:      0;
  --tracking-wide:        0.025em;
  --tracking-wider:       0.05em;
  --tracking-widest:      0.1em;

  --weight-normal:        400;
  --weight-medium:        500;
  --weight-semibold:      600;
  --weight-bold:          700;
  --weight-extrabold:     800;

  /* Spacing */
  --space-1:              0.25rem;    /* 4px */
  --space-2:              0.5rem;     /* 8px */
  --space-3:              0.75rem;    /* 12px */
  --space-4:              1rem;       /* 16px */
  --space-5:              1.25rem;    /* 20px */
  --space-6:              1.5rem;     /* 24px */
  --space-8:              2rem;       /* 32px */
  --space-10:             2.5rem;     /* 40px */
  --space-12:             3rem;       /* 48px */
  --space-16:             4rem;       /* 64px */
  --space-20:             5rem;       /* 80px */
  --space-24:             6rem;       /* 96px */
  --space-32:             8rem;       /* 128px */

  /* Border Radius */
  --radius-sm:            0.25rem;
  --radius-md:            0.5rem;
  --radius-lg:            0.75rem;
  --radius-xl:            1rem;
  --radius-2xl:           1.25rem;
  --radius-full:          9999px;

  /* Shadows */
  --shadow-xs:            0 1px 2px rgba(11, 18, 21, 0.04);
  --shadow-sm:            0 1px 3px rgba(11, 18, 21, 0.06), 0 1px 2px rgba(11, 18, 21, 0.04);
  --shadow-md:            0 4px 6px -1px rgba(11, 18, 21, 0.06), 0 2px 4px -1px rgba(11, 18, 21, 0.04);
  --shadow-lg:            0 10px 15px -3px rgba(11, 18, 21, 0.06), 0 4px 6px -2px rgba(11, 18, 21, 0.03);
  --shadow-xl:            0 20px 25px -5px rgba(11, 18, 21, 0.08), 0 10px 10px -5px rgba(11, 18, 21, 0.03);
  --shadow-2xl:           0 25px 50px -12px rgba(11, 18, 21, 0.15);
  --shadow-inner:         inset 0 2px 4px rgba(11, 18, 21, 0.04);
  --shadow-primary:       0 4px 14px rgba(0, 45, 82, 0.25);
  --shadow-accent:        0 4px 14px rgba(220, 0, 70, 0.25);

  /* Borders */
  --border-color:         var(--color-gray-200);
  --border-subtle:        var(--color-gray-100);
  --border-width:         1px;

  /* Transitions */
  --ease-out:             cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:          cubic-bezier(0.76, 0, 0.24, 1);
  --ease-spring:          cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast:        150ms;
  --duration-normal:      250ms;
  --duration-slow:        400ms;
  --duration-slower:      600ms;

  /* Z-index */
  --z-dropdown:           10;
  --z-sticky:             20;
  --z-nav:                100;
  --z-modal-backdrop:     200;
  --z-modal:              300;
  --z-toast:              400;

  /* Layout */
  --container-max:        1200px;
  --container-narrow:     800px;
  --container-prose:      74ch;
  --nav-height:           72px;
  --section-gap:          clamp(4rem, 8vw, 8rem);
}


/* ------------------------------------------------------------
   2. RESET & BASE STYLES
   ------------------------------------------------------------ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-height) + var(--space-8));
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-primary);
}

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

h1 { font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl)); }
h2 { font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl)); }
h3 { font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl)); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  max-width: 72ch;
}

::selection {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary-darker);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: var(--space-8) 0;
}

code, pre {
  font-family: var(--font-mono);
}

code {
  font-size: 0.9em;
  padding: 0.15em 0.4em;
  background-color: var(--bg-subtle);
  border-radius: var(--radius-sm);
  color: var(--color-primary-dark);
}

pre {
  padding: var(--space-6);
  background-color: var(--color-gray-900);
  color: var(--color-gray-100);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

pre code {
  padding: 0;
  background: none;
  color: inherit;
  font-size: inherit;
}


/* ------------------------------------------------------------
   3. CONTAINER
   ------------------------------------------------------------ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--prose {
  max-width: var(--container-prose);
}


/* ------------------------------------------------------------
   4. NAVIGATION
   ------------------------------------------------------------ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom: none;
  transition: background var(--duration-slow) var(--ease-out),
              box-shadow var(--duration-slow) var(--ease-out),
              border-color var(--duration-slow) var(--ease-out),
              transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03), 0 4px 12px rgba(0, 0, 0, 0.02);
  border-bottom: none;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
  text-decoration: none;
  flex-shrink: 0;
}

.nav__logo:hover {
  color: var(--text-primary);
}

.nav__logo img,
.nav__logo svg {
  height: 42px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.nav__link:hover,
.nav__link--active {
  color: var(--text-primary);
  background: var(--bg-muted);
}

.nav__link--active {
  color: var(--color-primary-dark);
}

.nav__dropdown--open .nav__dropdown-toggle,
.nav__dropdown:hover .nav__dropdown-toggle {
  color: var(--color-primary-dark);
  background: var(--bg-muted);
}

/* Dropdown (base) */
.nav__dropdown {
  position: relative;
}

.nav__dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 14px;
}

.nav__dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__dropdown-toggle::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav__dropdown:hover .nav__dropdown-toggle::after,
.nav__dropdown--open .nav__dropdown-toggle::after {
  transform: rotate(180deg);
}

/* Megamenu panel */
.nav__mega {
  --mega-width: min(820px, calc(100vw - 2rem));
  --mega-translate-x: -50%;
  --mega-pointer-left: 50%;
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  right: auto;
  width: var(--mega-width);
  padding: 0;
  background: var(--bg-surface);
  border: 1px solid rgba(0, 31, 59, 0.1);
  border-radius: 22px;
  box-shadow: 0 22px 48px -28px rgba(0, 0, 0, 0.24), 0 10px 18px -14px rgba(0, 45, 82, 0.18);
  opacity: 0;
  visibility: hidden;
  transform: translate(var(--mega-translate-x), 4px);
  transition: opacity 0.2s var(--ease-out),
              visibility 0.2s var(--ease-out),
              transform 0.2s var(--ease-out);
  z-index: var(--z-dropdown, 100);
  overflow: hidden;
}

.nav__mega::before {
  content: '';
  position: absolute;
  top: 0;
  left: var(--mega-pointer-left);
  width: 16px;
  height: 16px;
  background: var(--bg-surface);
  border-top: 1px solid rgba(0, 31, 59, 0.1);
  border-left: 1px solid rgba(0, 31, 59, 0.1);
  transform: translate(-50%, -50%) rotate(45deg);
}

.nav__dropdown:hover .nav__mega,
.nav__dropdown--open .nav__mega {
  opacity: 1;
  visibility: visible;
  transform: translate(var(--mega-translate-x), 0);
  pointer-events: auto;
}

.nav__dropdown--solutions .nav__mega {
  --mega-width: min(720px, calc(100vw - 2rem));
  --mega-translate-x: 0;
  --mega-pointer-left: 60px;
  left: 0;
}

.nav__dropdown--products .nav__mega {
  --mega-width: min(920px, calc(100vw - 2rem));
  --mega-translate-x: -38%;
  --mega-pointer-left: 34%;
}

.nav__dropdown--resources .nav__mega {
  --mega-width: min(720px, calc(100vw - 2rem));
  --mega-translate-x: 0;
  --mega-pointer-left: calc(100% - 60px);
  left: auto;
  right: 0;
}

.nav__mega-inner {
  padding: 18px;
}

.nav__mega-panel {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}

.nav__mega-intro {
  padding: 22px 20px;
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(238, 244, 249, 0.92), rgba(255, 255, 255, 0.98)),
    linear-gradient(135deg, rgba(0, 45, 82, 0.04), rgba(220, 0, 70, 0.04));
  border: 1px solid rgba(0, 45, 82, 0.08);
}

.nav__mega-kicker {
  display: inline-flex;
  margin-bottom: var(--space-2);
  font-size: 11px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.nav__mega-heading {
  font-size: clamp(1.35rem, 1.5vw, 1.65rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.nav__mega-summary {
  font-size: 0.99rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.nav__mega-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.nav__mega-meta span {
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  font-size: 11px;
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 45, 82, 0.08);
  border-radius: var(--radius-full);
}

/* Product/Solution card grid */
.nav__mega-grid {
  display: grid;
  gap: 14px;
  align-content: start;
}

.nav__mega-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.nav__mega-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.nav__mega-grid--resources {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

/* Mega card with image */
.nav__mega-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.nav__mega-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px -6px rgba(0, 45, 82, 0.12);
  transform: translateY(-2px);
}

.nav__mega-card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-muted);
}

.nav__mega-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s var(--ease-out);
}

.nav__mega-card:hover .nav__mega-card-img img {
  transform: scale(1.04);
}

.nav__mega-card-body {
  padding: 14px 16px 16px;
}

.nav__mega-card-tag {
  display: inline-flex;
  width: fit-content;
  margin-bottom: var(--space-2);
  padding: 4px 8px;
  font-size: 10px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
  background: var(--color-primary-bg);
  border-radius: var(--radius-full);
}

.nav__mega-card-title {
  display: block;
  font-size: 1rem;
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: 4px;
}

.nav__mega-card-desc {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  font-size: 0.9rem;
  color: var(--text-tertiary);
  line-height: 1.55;
}

/* Resources link style */
.nav__mega-link {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: 14px 16px;
  text-decoration: none;
  color: inherit;
  border-radius: 16px;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
}

.nav__mega-link:hover {
  background: var(--bg-muted);
  border-color: rgba(0, 45, 82, 0.08);
  transform: translateY(-1px);
}

.nav__mega-link svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
  opacity: 0.6;
  transition: opacity 0.15s;
}

.nav__mega-link:hover svg {
  opacity: 1;
}

.nav__mega-link strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: 2px;
}

.nav__mega-link span {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  line-height: var(--leading-normal);
}

/* Legacy dropdown compat (non-mega) */
.nav__dropdown-menu:not(.nav__mega) {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 220px;
  padding: var(--space-2);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-fast) var(--ease-out),
              visibility var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.nav__dropdown:hover .nav__dropdown-menu:not(.nav__mega),
.nav__dropdown--open .nav__dropdown-menu:not(.nav__mega) {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.nav__dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast), background var(--duration-fast);
}

.nav__dropdown-item:hover {
  color: var(--text-primary);
  background: var(--bg-muted);
}

.nav__dropdown-desc {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-weight: var(--weight-normal);
  margin-top: 2px;
}

/* Nav Actions */
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}


/* Nav CTA */
.nav__cta {
  margin-left: var(--space-4);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--space-2);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast) var(--ease-out);
}

.nav__hamburger:hover {
  background: var(--bg-muted);
}

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal) var(--ease-out);
}

.nav__hamburger.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav */
.nav__mobile {
  display: none;
  position: fixed;
  inset: var(--nav-height) 0 0 0;
  background: var(--bg-body);
  padding: var(--space-6);
  overflow-y: auto;
  z-index: calc(var(--z-nav) - 1);
}

.nav__mobile.is-open {
  display: block;
  animation: slideDown var(--duration-normal) var(--ease-out);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav__mobile .nav__link {
  display: block;
  padding: var(--space-4) var(--space-2);
  font-size: var(--text-lg);
  border-bottom: 1px solid var(--border-subtle);
}

.nav__mobile .nav__cta {
  margin-left: 0;
  margin-top: var(--space-6);
}

.nav__mobile .nav__cta .btn {
  width: 100%;
  justify-content: center;
}

/* Spacer for fixed nav */
.nav-spacer {
  height: var(--nav-height);
}

@media (max-width: 1023px) {
  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-surface);
    flex-direction: column;
    padding: var(--space-8) var(--space-6);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out);
    z-index: 999;
  }

  .nav__links--open {
    transform: translateX(0);
  }

  .nav__link {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    min-height: 44px;
  }

  .nav__cta {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__mobile-cta {
    display: block;
    margin-top: var(--space-6);
    width: 100%;
    text-align: center;
  }

  /* Megamenu mobile: stack inline instead of absolute panel */
  .nav__dropdown {
    position: relative;
  }

  .nav__mega {
    position: static;
    width: auto;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    transform: none !important;
    display: none;
    overflow: visible;
  }

  .nav__mega::before {
    display: none;
  }

  .nav__dropdown--open .nav__mega,
  .nav__dropdown:hover .nav__mega {
    transform: none;
  }

  .nav__dropdown.nav__dropdown--open .nav__mega {
    display: block;
    opacity: 1;
    visibility: visible;
  }

  .nav__mega-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-3);
    padding: var(--space-3) 0;
  }

  .nav__mega-panel {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .nav__mega-intro {
    padding: var(--space-4);
    border-radius: var(--radius-xl);
  }

  .nav__mega-card {
    flex-direction: row;
    border: none;
    border-radius: var(--radius-md);
    background: var(--bg-muted);
  }

  .nav__mega-card:hover {
    transform: none;
    box-shadow: none;
  }

  .nav__mega-card-img {
    width: 60px;
    flex-shrink: 0;
    aspect-ratio: 1;
  }

  .nav__mega-card-body {
    padding: var(--space-3);
  }

  .nav__mega-link {
    padding: var(--space-3);
  }
}

.nav__links .nav__mobile-cta {
  display: none;
}

/* ------------------------------------------------------------
   5. HERO SECTIONS
   ------------------------------------------------------------ */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(100vh - var(--nav-height));
  padding: var(--space-20) 0;
  overflow: hidden;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4) var(--space-1) var(--space-1);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: #006094;
  background: var(--color-primary-bg);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-full);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  margin-left: var(--space-2);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.6; transform: scale(1.3); }
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: var(--weight-extrabold);
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: var(--space-6);
}

.hero__title-highlight {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__lead {
  font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  margin-bottom: var(--space-10);
  max-width: 560px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.hero__stats {
  display: flex;
  gap: var(--space-12);
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-color);
}

.hero__stat {
  text-align: left;
}

.hero__stat-value {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
}

.hero__stat-label {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
  font-weight: var(--weight-medium);
}

/* Hero visual */
.hero__visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  max-width: 640px;
  z-index: 1;
}

.hero__visual img {
  width: 100%;
  height: auto;
}

/* Hero background decoration */
.hero__bg-gradient {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, var(--color-primary-lighter) 0%, transparent 70%);
  opacity: 0.5;
  z-index: 0;
  pointer-events: none;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-gray-200) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-gray-200) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.3;
  z-index: 0;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at 30% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 50%, black 20%, transparent 70%);
}

@media (max-width: 1023px) {
  .hero {
    min-height: auto;
    padding: var(--space-16) 0 var(--space-12);
  }

  .hero__visual {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    width: 100%;
    max-width: 100%;
    margin-top: var(--space-10);
  }

  .hero__stats {
    gap: var(--space-8);
  }
}

@media (max-width: 767px) {
  .hero__stats {
    flex-wrap: wrap;
    gap: var(--space-6);
  }

  .hero__stat {
    min-width: 120px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    justify-content: center;
  }
}


/* ------------------------------------------------------------
   6. BUTTONS
   ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  min-height: 44px;
  font-weight: var(--weight-semibold);
  line-height: 1;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  text-decoration: none;
  user-select: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Primary */
.btn--primary {
  background: var(--color-primary-button);
  color: var(--text-inverse);
  border-color: var(--color-primary-button);
}

.btn--primary:hover {
  background: #007A94;
  border-color: #007A94;
  box-shadow: var(--shadow-primary);
  color: var(--text-inverse);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: none;
}

/* Secondary (green/accent) */
.btn--secondary {
  background: var(--color-accent);
  color: var(--color-gray-900);
  border-color: var(--color-accent);
}

.btn--secondary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: var(--shadow-accent);
  color: var(--color-gray-900);
  transform: translateY(-1px);
}

.btn--secondary:active {
  transform: translateY(0);
  box-shadow: none;
}

/* Ghost (outline) */
.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn--ghost:hover {
  background: var(--bg-muted);
  border-color: var(--color-gray-300);
  color: var(--text-primary);
}

/* White */
.btn--white {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--bg-surface);
  box-shadow: var(--shadow-sm);
}

.btn--white:hover {
  background: var(--color-gray-50);
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
  transform: translateY(-1px);
}

/* Sizes */
.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-md);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--text-base);
  border-radius: var(--radius-xl);
}

.btn--xl {
  padding: 1.125rem 2.5rem;
  font-size: var(--text-lg);
  border-radius: var(--radius-xl);
}

/* Icon button */
.btn--icon {
  padding: 0.625rem;
  gap: 0;
}

.btn--icon.btn--sm {
  padding: 0.375rem;
}

.btn--icon.btn--lg {
  padding: 0.875rem;
}

/* Full width */
.btn--full {
  width: 100%;
}

/* Button with arrow */
.btn__arrow {
  display: inline-block;
  transition: transform var(--duration-fast) var(--ease-out);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}


/* ------------------------------------------------------------
   7. CARDS
   ------------------------------------------------------------ */

/* Base card */
.card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gray-300);
}

.card--hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* Feature card */
.card--feature {
  padding: var(--space-8);
}

.card--feature .card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-bg);
  color: var(--color-primary-dark);
  margin-bottom: var(--space-5);
}

.card--feature .card__icon svg {
  width: 24px;
  height: 24px;
}

.card--feature .card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
}

.card--feature .card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.card--feature .card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
}

.card--feature .card__link:hover {
  gap: var(--space-2);
}

/* Product card */
.card--product {
  padding: 0;
  overflow: hidden;
}

.card--product .card__image {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--bg-muted);
  overflow: hidden;
}

.card--product .card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.card--product:hover .card__image img {
  transform: scale(1.04);
}

.card--product .card__body {
  padding: var(--space-6);
}

.card--product .card__category {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-2);
}

.card--product .card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
}

.card--product .card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.card--product .card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-subtle);
}

/* Testimonial card */
.card--testimonial {
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
}

.card--testimonial .card__quote {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  flex: 1;
  position: relative;
}

.card--testimonial .card__quote::before {
  content: '\201C';
  position: absolute;
  top: -0.3em;
  left: -0.05em;
  font-size: 3em;
  font-family: Georgia, serif;
  color: var(--color-primary-light);
  line-height: 1;
  pointer-events: none;
}

.card--testimonial .card__author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.card--testimonial .card__avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  object-fit: cover;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card--testimonial .card__avatar[data-initials]::after {
  content: attr(data-initials);
  color: #FFFFFF;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.03em;
}

.card--testimonial .card__author-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
}

.card--testimonial .card__author-role {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: 2px;
}

.card--testimonial .card__company-logo {
  height: 20px;
  width: auto;
  margin-top: var(--space-2);
  opacity: 0.5;
}

/* Case study card */
.card--case-study {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card--case-study .card__image {
  aspect-ratio: 16 / 9;
  background: var(--bg-subtle);
  overflow: hidden;
}

.card--case-study .card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.card--case-study:hover .card__image img {
  transform: scale(1.04);
}

.card--case-study .card__body {
  padding: var(--space-6) var(--space-8);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card--case-study .card__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-3);
}

.card--case-study .card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
}

.card--case-study .card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  flex: 1;
}

.card--case-study .card__metrics {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
}

.card--case-study .card__metric-value {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-primary-dark);
  line-height: 1;
}

.card--case-study .card__metric-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.card--case-study .card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
  transition: gap var(--duration-fast) var(--ease-out);
}

.card--case-study:hover .card__link {
  gap: var(--space-2);
}


/* ------------------------------------------------------------
   8. SECTIONS (Generic)
   ------------------------------------------------------------ */

.section {
  padding: var(--section-gap) 0;
}

.section--muted,
.section--alt {
  background: var(--bg-muted);
}

.section--subtle {
  background: var(--bg-subtle);
}

.section--primary {
  background: linear-gradient(135deg, #002d52 0%, #001f3b 60%, #6b0025 100%);
  color: #FFFFFF;
}

.section--primary .section__title {
  color: #FFFFFF;
}

.section--primary .section__subtitle,
.section--primary .section__desc {
  color: rgba(255, 255, 255, 0.85);
}

.section--dark {
  background: var(--color-gray-900);
  color: var(--text-inverse);
}

.section--dark .section__subtitle,
.section--dark .section__desc {
  color: var(--color-gray-400);
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section__subtitle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-4);
}

.section__title {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: var(--weight-bold);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-5);
}

.section__desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 560px;
  margin-inline: auto;
}

/* Feature sections: alternating two-column layout */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  padding: var(--space-16) 0;
}

.feature-row:not(:last-child) {
  border-bottom: 1px solid var(--border-subtle);
}

.feature-row--reverse {
  direction: rtl;
}

.feature-row--reverse > * {
  direction: ltr;
}

.feature-row__content {
  max-width: 480px;
}

.feature-row__label {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-4);
}

.feature-row__title {
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-5);
}

.feature-row__desc {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
}

.feature-row__points {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.feature-row__point {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.feature-row__point-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-accent-bg);
  color: var(--color-accent-dark);
  margin-top: 1px;
}

.feature-row__visual {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: var(--bg-muted);
}

.feature-row__visual img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-row__visual--framed {
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

@media (max-width: 1023px) {
  .feature-row {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    padding: var(--space-12) 0;
  }

  .feature-row--reverse {
    direction: ltr;
  }

  .feature-row__content {
    max-width: 100%;
  }
}


/* ------------------------------------------------------------
   9. STATS / COUNTER SECTION
   ------------------------------------------------------------ */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.stats__item {
  text-align: center;
  padding: var(--space-8) var(--space-4);
}

.stats__value {
  font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
  font-weight: var(--weight-extrabold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stats__value--primary {
  color: var(--color-primary);
}

.stats__value--accent {
  color: var(--color-accent);
}

.stats__label {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  font-weight: var(--weight-medium);
}

.stats__divider {
  width: 40px;
  height: 3px;
  background: var(--color-primary-light);
  border-radius: var(--radius-full);
  margin: var(--space-3) auto 0;
}

/* Dark stats */
.section--primary .stats__value,
.section--dark .stats__value {
  color: var(--text-inverse);
}

.section--primary .stats__label,
.section--dark .stats__label {
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 1023px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .stats {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

  .stats__item {
    padding: var(--space-6) var(--space-4);
  }
}


/* ------------------------------------------------------------
   10. TESTIMONIALS
   ------------------------------------------------------------ */

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

/* Featured testimonial (full width) */
.testimonial-featured {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  padding: var(--space-12);
  text-align: center;
  max-width: 800px;
  margin-inline: auto;
}

.testimonial-featured__quote {
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl));
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  font-style: italic;
}

.testimonial-featured__stars {
  display: flex;
  justify-content: center;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
  color: var(--color-warning);
}

.testimonial-featured__author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.testimonial-featured__avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.testimonial-featured__name {
  font-weight: var(--weight-semibold);
  font-size: var(--text-base);
}

.testimonial-featured__role {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

@media (max-width: 1023px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin-inline: auto;
  }
}


/* ------------------------------------------------------------
   11. PARTNER LOGOS
   ------------------------------------------------------------ */

.partners {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.partners__label {
  text-align: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-8);
}

.partners__grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-10) var(--space-12);
}

.partners__logo {
  height: 28px;
  width: auto;
  filter: grayscale(100%);
  opacity: 0.45;
  transition: opacity var(--duration-normal) var(--ease-out),
              filter var(--duration-normal) var(--ease-out);
}

.partners__logo:hover {
  filter: grayscale(0%);
  opacity: 1;
}

@media (max-width: 767px) {
  .partners__grid {
    gap: var(--space-6) var(--space-8);
  }

  .partners__logo {
    height: 22px;
  }
}


/* ------------------------------------------------------------
   12. PRODUCT GRID
   ------------------------------------------------------------ */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

@media (max-width: 1023px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .product-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-inline: auto;
  }
}


/* ------------------------------------------------------------
   13. COMPARISON TABLE
   ------------------------------------------------------------ */

.comparison-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  min-width: 640px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

/* Allow horizontal scroll on mobile when table overflows */
.section > .container:has(.comparison-table) {
  overflow-x: auto;
}

.comparison-table thead {
  background: var(--color-primary);
}

.comparison-table th {
  padding: var(--space-4) var(--space-6);
  font-weight: var(--weight-semibold);
  text-align: left;
  border-bottom: 2px solid var(--color-primary);
  color: #ffffff;
  white-space: nowrap;
  font-size: var(--text-sm);
  letter-spacing: 0.01em;
}

.comparison-table th:first-child {
  border-top-left-radius: var(--radius-xl);
}

.comparison-table th:last-child {
  border-top-right-radius: var(--radius-xl);
}

.comparison-table td {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: top;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.comparison-table td:first-child {
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  white-space: nowrap;
  width: 180px;
  min-width: 150px;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody tr:nth-child(even) {
  background: var(--bg-muted);
}

.comparison-table tbody tr:hover {
  background: var(--color-primary-bg);
}

/* Highlighted column */
.comparison-table th.is-highlighted {
  background: var(--color-primary-bg);
  color: var(--color-primary-dark);
  position: relative;
}

.comparison-table td.is-highlighted {
  background: var(--color-primary-bg);
}

/* Check and cross icons */
.comparison-table .check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--color-accent-bg);
  color: var(--color-accent-dark);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
}

.comparison-table .check::before {
  content: '\2713';
}

.comparison-table .cross {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  color: var(--color-gray-400);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
}

.comparison-table .cross::before {
  content: '\2717';
}

/* Feature name in table */
.comparison-table .feature-name {
  font-weight: var(--weight-medium);
  color: var(--text-primary);
}

/* Comparison diagram (side-by-side panels) */
.comparison-diagram__placeholder {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.comparison-diagram__col {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.comparison-diagram__col h3 {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-4);
}

.comparison-diagram__col p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.comparison-diagram__col ul {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 0;
}

.comparison-diagram__col ul li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.comparison-diagram__col ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
}

.comparison-diagram__col--highlight {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  box-shadow: 0 2px 12px rgba(0, 45, 82, 0.08);
  position: relative;
}

.comparison-diagram__col--highlight::before {
  content: '';
  position: absolute;
  top: var(--space-4);
  bottom: var(--space-4);
  left: 0;
  width: 3px;
  background: var(--color-primary);
  border-radius: 0 2px 2px 0;
}

.comparison-diagram__col--highlight ul li::before {
  background: var(--color-accent);
}

/* Capability grid (advantage cards) */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.capability-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.capability-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(0, 45, 82, 0.08);
  transform: translateY(-2px);
}

.capability-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.capability-card__desc {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  font-size: var(--text-sm);
}

@media (max-width: 767px) {
  .comparison-diagram__placeholder {
    grid-template-columns: 1fr;
  }
  .capability-grid {
    grid-template-columns: 1fr;
  }
}

/* Breadcrumbs */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.breadcrumb a {
  color: var(--text-tertiary);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb__sep {
  color: var(--text-tertiary);
  font-size: var(--text-xs);
}

.breadcrumb__current {
  color: var(--text-secondary);
  font-weight: var(--weight-medium);
}


/* ------------------------------------------------------------
   14. FAQ ACCORDION
   ------------------------------------------------------------ */

.faq-list {
  max-width: 720px;
  margin-inline: auto;
}

.faq__item {
  border-bottom: 1px solid var(--border-color);
}

.faq__item:first-child {
  border-top: 1px solid var(--border-color);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-6) 0;
  text-align: left;
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  cursor: pointer;
  background: none;
  border: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.faq__question:hover {
  color: var(--color-primary-dark);
}

.faq__question__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  transition: transform var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
}

.faq__question__icon::before {
  content: '+';
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  line-height: 1;
  color: var(--text-secondary);
}

.faq__item.open .faq__question__icon {
  transform: rotate(45deg);
  background: var(--color-primary-bg);
}

.faq__item.open .faq__question__icon::before {
  color: var(--color-primary-dark);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out),
              padding var(--duration-slow) var(--ease-out);
}

.faq__item.open .faq__answer {
  max-height: 500px;
}

.faq__answer__content {
  padding-bottom: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 90%;
}

.faq__answer__content p + p {
  margin-top: var(--space-4);
}


/* ------------------------------------------------------------
   15. FOOTER
   ------------------------------------------------------------ */

.footer {
  background: var(--bg-footer);
  color: var(--color-gray-300);
  padding-top: var(--space-20);
}

.footer__grid,
.footer__columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-12);
}

.footer__brand {
  max-width: 280px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text-inverse);
  margin-bottom: var(--space-5);
  text-decoration: none;
}

.footer__logo:hover {
  color: var(--text-inverse);
}

.footer__logo img,
.footer__logo svg {
  height: 32px;
  width: auto;
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.footer__social-link:hover {
  color: var(--text-inverse);
  background: rgba(255, 255, 255, 0.08);
}

.footer__social-link svg {
  width: 20px;
  height: 20px;
}

.footer__column-title,
.footer__heading {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-inverse);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-5);
}

.footer__links,
.footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__link,
.footer__list a {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__link:hover,
.footer__list a:hover {
  color: var(--text-inverse);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--space-3);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Footer bottom / legal */
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-16);
  padding: var(--space-6) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal a {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__legal a:hover {
  color: var(--color-gray-300);
}

.footer__contact {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.footer__contact a {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__contact a:hover {
  color: var(--color-gray-300);
}

.footer__meta {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  text-align: right;
}

.footer__made {
  color: var(--color-gray-600);
}

@media (max-width: 1023px) {
  .footer__grid,
  .footer__columns {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }

  .footer__brand {
    grid-column: 1 / -1;
    max-width: 100%;
  }
}

@media (max-width: 767px) {
  .footer__grid,
  .footer__columns {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-3);
  }

  .footer__legal {
    flex-wrap: wrap;
    justify-content: center;
  }
}


/* ------------------------------------------------------------
   16. BLOG / ARTICLE
   ------------------------------------------------------------ */

.article {
  padding: var(--space-16) 0 var(--space-24);
}

.article__header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.article__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-6);
}

.article__meta-divider {
  width: 4px;
  height: 4px;
  border-radius: var(--radius-full);
  background: var(--color-gray-300);
}

.article__category {
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
}

.article__title {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: var(--weight-bold);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.article__excerpt {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.article__hero-image {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  margin-bottom: var(--space-12);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  aspect-ratio: 21 / 9;
  background: var(--bg-subtle);
}

.article__hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Prose content */
.prose {
  max-width: var(--container-prose);
  margin-inline: auto;
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
}

.prose > * + * {
  margin-top: 1.5em;
}

.prose h2 {
  font-size: var(--text-3xl);
  margin-top: 2.5em;
  margin-bottom: 0.5em;
}

.prose h3 {
  font-size: var(--text-2xl);
  margin-top: 2em;
  margin-bottom: 0.5em;
}

.prose h4 {
  font-size: var(--text-xl);
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

.prose p {
  max-width: 100%;
}

.prose a {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-decoration-color: var(--color-primary-light);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--duration-fast);
}

.prose a:hover {
  text-decoration-color: var(--color-primary-dark);
}

.prose strong {
  font-weight: var(--weight-semibold);
}

.prose ul,
.prose ol {
  padding-left: 1.5em;
}

.prose ul {
  list-style: disc;
}

.prose ol {
  list-style: decimal;
}

.prose li {
  margin-top: 0.5em;
}

.prose li::marker {
  color: var(--color-primary);
}

.prose blockquote {
  padding: var(--space-5) var(--space-6);
  border-left: 3px solid var(--color-primary);
  background: var(--bg-muted);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-secondary);
}

.prose img {
  border-radius: var(--radius-lg);
  margin-top: 2em;
  margin-bottom: 2em;
}

.prose figure {
  margin-top: 2em;
  margin-bottom: 2em;
}

.prose figcaption {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-3);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-base);
  margin-top: 2em;
  margin-bottom: 2em;
}

.prose table th,
.prose table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.prose table th {
  font-weight: var(--weight-semibold);
  background: var(--bg-muted);
}

/* Author box */
.article__author-box {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  max-width: var(--container-prose);
  margin: var(--space-12) auto 0;
  padding: var(--space-6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  background: var(--bg-muted);
}

.article__author-avatar {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  object-fit: cover;
}

.article__author-name {
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-1);
}

.article__author-bio {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* Blog listing card */
.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.blog-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.blog-card__image {
  aspect-ratio: 16 / 10;
  background: var(--bg-subtle);
  overflow: hidden;
}

.blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.blog-card:hover .blog-card__image img {
  transform: scale(1.04);
}

.blog-card__body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--space-3);
}

.blog-card__category {
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
}

.blog-card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
  line-height: var(--leading-snug);
}

.blog-card__title a {
  color: var(--text-primary);
}

.blog-card__title a:hover {
  color: var(--color-primary-dark);
}

.blog-card__excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  flex: 1;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

@media (max-width: 1023px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .blog-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-inline: auto;
  }
}


/* ------------------------------------------------------------
   17. KNOWLEDGE BASE
   ------------------------------------------------------------ */

.kb-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.kb-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  transition: box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

.kb-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-gray-300);
}

.kb-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-bg);
  color: var(--color-primary-dark);
  margin-bottom: var(--space-5);
}

.kb-card__icon svg {
  width: 22px;
  height: 22px;
}

.kb-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
}

.kb-card__title a {
  color: var(--text-primary);
}

.kb-card__title a:hover {
  color: var(--color-primary-dark);
}

.kb-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  flex: 1;
}

.kb-card__count {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-tertiary);
}

@media (max-width: 1023px) {
  .kb-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .kb-grid {
    grid-template-columns: 1fr;
  }
}


/* ------------------------------------------------------------
   18. BREADCRUMBS
   ------------------------------------------------------------ */

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
}

.breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-tertiary);
}

.breadcrumbs__item a {
  color: var(--text-tertiary);
  transition: color var(--duration-fast);
}

.breadcrumbs__item a:hover {
  color: var(--text-primary);
}

.breadcrumbs__separator {
  color: var(--color-gray-300);
  font-size: var(--text-xs);
}

.breadcrumbs__item--active {
  color: var(--text-primary);
  font-weight: var(--weight-medium);
}


/* ------------------------------------------------------------
   19. CTA SECTIONS
   ------------------------------------------------------------ */

.cta-section {
  position: relative;
  padding: var(--space-20) 0;
  text-align: center;
  overflow: hidden;
}

.cta-section--primary {
  background: linear-gradient(135deg, #002d52 0%, #001f3b 60%, #6b0025 100%);
  color: #FFFFFF;
}

.cta-section--muted {
  background: var(--bg-muted);
}

.cta-section--bordered {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  margin-inline: var(--space-6);
}

.cta-section__bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.cta-section__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin-inline: auto;
}

.cta-section__title {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: var(--weight-bold);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-5);
  color: #FFFFFF;
}

.cta-section__desc {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  color: rgba(255, 255, 255, 0.85);
  opacity: 1;
}

.cta-section--muted .cta-section__title,
.cta-section--bordered .cta-section__title {
  color: var(--text-primary);
}

.cta-section--muted .cta-section__desc,
.cta-section--bordered .cta-section__desc {
  color: var(--text-secondary);
  opacity: 1;
}

.cta-section--muted .cta-section__note,
.cta-section--bordered .cta-section__note {
  color: var(--text-tertiary);
  opacity: 1;
}

.cta-section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

.cta-section__note {
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  opacity: 1;
}


/* ------------------------------------------------------------
   20. PAGE HERO (Sub-pages)
   ------------------------------------------------------------ */

.page-hero {
  padding: var(--space-16) 0 var(--space-12);
  text-align: center;
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.page-hero--left {
  text-align: left;
}

.page-hero__content {
  max-width: 680px;
  margin-inline: auto;
}

.page-hero--left .page-hero__content {
  margin-inline: 0;
}

.page-hero__breadcrumbs {
  margin-bottom: var(--space-6);
}

.page-hero__title {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: var(--weight-bold);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.page-hero__desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.page-hero__back {
  margin-bottom: var(--space-4);
}

.page-hero__back a {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  text-decoration: none;
  font-weight: var(--weight-medium);
  transition: color var(--duration-fast) var(--ease-out);
}

.page-hero__back a:hover {
  color: var(--color-primary);
}


/* ------------------------------------------------------------
   21. SCROLL ANIMATIONS
   ------------------------------------------------------------ */

/*
 * Apple-style approach: content is always visible.
 * JS adds .reveal-ready to <html> once observer is set up,
 * so animations only apply when JS is working.
 * Without JS, everything just shows normally.
 */
/* Scroll animations disabled — content shows immediately */
.reveal-ready [data-reveal] {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
  will-change: opacity, transform;
}

.reveal-ready [data-reveal="fade-in"] {
  transform: none;
}

.reveal-ready [data-reveal="fade-left"] {
  transform: translateX(-12px);
}

.reveal-ready [data-reveal="fade-right"] {
  transform: translateX(12px);
}

.reveal-ready [data-reveal="scale-up"] {
  transform: scale(0.97);
}

/* Revealed state */
[data-reveal].is-visible,
[data-reveal].visible {
  opacity: 1 !important;
  transform: none !important;
}

/* Stagger delays for children */
[data-reveal-delay="100"] { transition-delay: 100ms; }
[data-reveal-delay="200"] { transition-delay: 200ms; }
[data-reveal-delay="300"] { transition-delay: 300ms; }
[data-reveal-delay="400"] { transition-delay: 400ms; }
[data-reveal-delay="500"] { transition-delay: 500ms; }
[data-reveal-delay="600"] { transition-delay: 600ms; }

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal-ready [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}


/* ------------------------------------------------------------
   22. BADGE / PILL
   ------------------------------------------------------------ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2em 0.7em;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  line-height: 1.5;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge--default {
  background: var(--bg-subtle);
  color: var(--text-secondary);
}

.badge--primary {
  background: var(--color-primary-bg);
  color: var(--color-primary-dark);
}

.badge--accent {
  background: var(--color-accent-bg);
  color: var(--color-accent-dark);
}

.badge--warning {
  background: #FFF8E1;
  color: #B8860B;
}

.badge--error {
  background: #FDE8ED;
  color: #C91F45;
}

.badge--success {
  background: var(--color-accent-bg);
  color: var(--color-accent-dark);
}

.badge--outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.badge--dot::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: currentColor;
}

/* Tag (clickable badge) */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  text-decoration: none;
}

.tag:hover {
  background: var(--color-primary-bg);
  border-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}


/* ------------------------------------------------------------
   23. ICON GRID
   ------------------------------------------------------------ */

.icon-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.icon-grid--4col {
  grid-template-columns: repeat(4, 1fr);
}

.icon-grid__item {
  text-align: center;
  padding: var(--space-6);
}

.icon-grid__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-5);
  border-radius: var(--radius-xl);
  background: var(--color-primary-bg);
  color: var(--color-primary-dark);
  transition: background var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.icon-grid__item:hover .icon-grid__icon {
  background: var(--color-primary-lighter);
  transform: scale(1.08);
}

.icon-grid__icon svg {
  width: 28px;
  height: 28px;
}

.icon-grid__icon img {
  width: 28px;
  height: 28px;
}

.icon-grid__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
}

.icon-grid__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 280px;
  margin-inline: auto;
}

/* Left-aligned variant */
.icon-grid--left .icon-grid__item {
  text-align: left;
  display: flex;
  gap: var(--space-5);
  padding: var(--space-4);
}

.icon-grid--left .icon-grid__icon {
  margin: 0;
  flex-shrink: 0;
}

.icon-grid--left .icon-grid__desc {
  margin-inline: 0;
}

@media (max-width: 1023px) {
  .icon-grid,
  .icon-grid--4col {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .icon-grid,
  .icon-grid--4col {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-inline: auto;
  }
}


/* ------------------------------------------------------------
   24. VERDICT BOX
   ------------------------------------------------------------ */

.verdict-box {
  position: relative;
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  border: 2px solid var(--color-primary-light);
  background: var(--color-primary-bg);
  margin: var(--space-8) 0;
}

.verdict-box__label {
  position: absolute;
  top: -12px;
  left: var(--space-6);
  padding: var(--space-1) var(--space-4);
  background: var(--color-primary);
  color: var(--text-inverse);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  border-radius: var(--radius-full);
}

.verdict-box__title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-4);
  color: var(--color-primary-dark);
}

.verdict-box__content {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
}

.verdict-box__content p + p {
  margin-top: var(--space-4);
}

.verdict-box__score {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-primary-light);
}

.verdict-box__score-value {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-primary-dark);
  line-height: 1;
}

.verdict-box__score-max {
  font-size: var(--text-lg);
  color: var(--color-gray-400);
}

.verdict-box__score-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
}

/* Variant: accent/green */
.verdict-box--accent {
  border-color: var(--color-accent-light);
  background: var(--color-accent-bg);
}

.verdict-box--accent .verdict-box__label {
  background: var(--color-accent);
  color: var(--color-gray-900);
}

.verdict-box--accent .verdict-box__title {
  color: var(--color-accent-dark);
}

.verdict-box--accent .verdict-box__score-value {
  color: var(--color-accent-dark);
}

.verdict-box--accent .verdict-box__score-label {
  color: var(--color-accent-dark);
}

/* Pros/cons lists in verdict */
.verdict-box__pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.verdict-box__list-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
}

.verdict-box__list-title--pro {
  color: var(--color-accent-dark);
}

.verdict-box__list-title--con {
  color: var(--color-error);
}

.verdict-box__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.verdict-box__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.verdict-box__list li::before {
  content: '\2713';
  flex-shrink: 0;
  font-weight: var(--weight-bold);
  color: var(--color-accent);
}

.verdict-box__list--cons li::before {
  content: '\2717';
  color: var(--color-error);
}

@media (max-width: 767px) {
  .verdict-box__pros-cons {
    grid-template-columns: 1fr;
  }
}


/* ------------------------------------------------------------
   25. RELATED LINKS GRID
   ------------------------------------------------------------ */

.related-links {
  padding: var(--space-12) 0;
}

.related-links__title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-8);
}

.related-links__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.related-link {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.related-link:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
}

.related-link__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--bg-subtle);
  color: var(--color-primary-dark);
}

.related-link__icon svg {
  width: 20px;
  height: 20px;
}

.related-link__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.related-link__desc {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  line-height: var(--leading-relaxed);
}

.related-link__arrow {
  margin-left: auto;
  flex-shrink: 0;
  color: var(--color-gray-300);
  transition: color var(--duration-fast), transform var(--duration-fast);
}

.related-link:hover .related-link__arrow {
  color: var(--color-primary);
  transform: translateX(2px);
}

@media (max-width: 1023px) {
  .related-links__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .related-links__grid {
    grid-template-columns: 1fr;
  }
}


/* ============================================================
   UTILITY CLASSES
   ============================================================ */

/* Text alignment */
.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

/* Font weight */
.font-normal   { font-weight: var(--weight-normal); }
.font-medium   { font-weight: var(--weight-medium); }
.font-semibold { font-weight: var(--weight-semibold); }
.font-bold     { font-weight: var(--weight-bold); }

/* Text color */
.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary  { color: var(--text-tertiary); }
.text-muted     { color: var(--text-muted); }
.text-inverse   { color: var(--text-inverse); }
.text-brand     { color: var(--color-primary); }
.text-accent    { color: var(--color-accent); }

/* Background */
.bg-surface { background-color: var(--bg-surface); }
.bg-muted   { background-color: var(--bg-muted); }
.bg-subtle  { background-color: var(--bg-subtle); }

/* Spacing */
.mt-0  { margin-top: 0; }
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }

.mb-0  { margin-bottom: 0; }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }

.py-8  { padding-block: var(--space-8); }
.py-12 { padding-block: var(--space-12); }
.py-16 { padding-block: var(--space-16); }
.py-20 { padding-block: var(--space-20); }

.px-4  { padding-inline: var(--space-4); }
.px-6  { padding-inline: var(--space-6); }

/* Flex utilities */
.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2  { gap: var(--space-2); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }

/* Grid utilities */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1023px) {
  .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .grid-cols-2 { grid-template-columns: 1fr; }
  .grid-cols-3 { grid-template-columns: 1fr; }
  .grid-cols-4 { grid-template-columns: 1fr; }
}

/* Visibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Hide on mobile / desktop */
@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 768px) {
  .hide-desktop { display: none !important; }
}

@media (max-width: 1023px) {
  .hide-tablet { display: none !important; }
}

/* Max width utilities */
.max-w-prose { max-width: var(--container-prose); }
.max-w-narrow { max-width: var(--container-narrow); }
.mx-auto { margin-inline: auto; }

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: var(--space-8) 0;
}

.divider--subtle {
  border-top-color: var(--border-subtle);
}

/* Truncate */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}


/* ============================================================
   FORM ELEMENTS
   ============================================================ */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.form-label--required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: var(--text-base); /* 16px prevents iOS zoom on focus */
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 45, 82, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B8699' d='M6 8.825L0.575 3.4L1.4 2.575L6 7.175L10.6 2.575L11.425 3.4L6 8.825Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.5rem;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-input--error,
.form-textarea--error {
  border-color: var(--color-error);
}

.form-input--error:focus,
.form-textarea--error:focus {
  box-shadow: 0 0 0 3px rgba(239, 71, 111, 0.12);
}

/* Checkbox / Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.form-check__label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}


/* ============================================================
   MISCELLANEOUS
   ============================================================ */

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg,
    var(--color-gray-100) 25%,
    var(--color-gray-50) 37%,
    var(--color-gray-100) 63%
  );
  background-size: 400% 100%;
  animation: skeleton-shimmer 1.4s ease infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-shimmer {
  0%   { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Tooltip */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-inverse);
  background: var(--color-gray-800);
  border-radius: var(--radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-fast), visibility var(--duration-fast);
  z-index: var(--z-toast);
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  color: var(--text-secondary);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  z-index: var(--z-sticky);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  color: var(--color-primary);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: var(--space-6);
  left: var(--space-6);
  right: var(--space-6);
  max-width: 480px;
  padding: var(--space-6);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  z-index: var(--z-modal);
  animation: slideUp var(--duration-slow) var(--ease-out);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.cookie-banner__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-3);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: var(--text-inverse);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  z-index: calc(var(--z-toast) + 1);
  transition: top var(--duration-fast);
}

.skip-link:focus {
  top: var(--space-4);
  color: var(--text-inverse);
}


/* ============================================================
   CASE STUDY DETAIL PAGES
   ============================================================ */

/* ---- Case Study Hero (tighter padding) ---- */
body.cs-page .page-hero {
  padding-top: var(--space-12);
  padding-bottom: var(--space-10);
}

/* ---- Case Study Meta Card ---- */
.cs-meta {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.cs-meta__heading {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.cs-meta dt {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.cs-meta dd {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-4);
}

.cs-meta dd:last-child {
  margin-bottom: 0;
}

@media (max-width: 640px) {
  .cs-meta {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* ---- Case Study Article Content ---- */
.cs-article {
  max-width: 780px;
  margin: 0 auto;
}

.cs-article h2 {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.cs-article p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
}

.cs-article p:last-child {
  margin-bottom: 0;
}

.cs-article ul,
.cs-article ol {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}

.cs-article ul {
  list-style: disc;
}

.cs-article li {
  margin-bottom: var(--space-4);
}

.cs-article li strong {
  color: var(--text-primary);
}

/* ---- Case Study Blockquote ---- */
.cs-quote {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  padding: var(--space-8) 0;
}

.cs-quote::before {
  content: '\201C';
  display: block;
  font-size: 4rem;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.15;
  font-family: Georgia, serif;
  margin-bottom: var(--space-2);
}

.cs-quote p {
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.cs-quote p:last-of-type {
  margin-bottom: var(--space-4);
}

.cs-quote cite {
  display: block;
  font-style: normal;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
}

/* ---- Case Study Results Checkmark ---- */
.feature-row__point-icon::before {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  background: currentColor;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.75.75 0 0 1 1.06-1.06L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.75.75 0 0 1 1.06-1.06L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0z'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  mask-size: contain;
}

/* ---- Related Case Studies Section ---- */
.cs-related {
  padding: var(--space-16) 0;
  background: var(--bg-muted);
}

.cs-related__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.cs-related__eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.cs-related__title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
}


/* ============================================================
   CASE STUDIES INDEX PAGE
   ============================================================ */

/* ---- Hero ---- */
.cs-hero {
  position: relative;
  padding: var(--space-20) 0 var(--space-16);
  text-align: center;
  background: #FFFFFF;
  overflow: visible;
  min-height: 540px;
  display: flex;
  align-items: center;
}

.cs-hero__pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 150%;
  /* Ready for hero image — add: background: url('/images/hero-case-studies.jpg') center top / max(100%, 1600px) auto no-repeat; */
  background: linear-gradient(135deg, rgba(0, 45, 82, 0.03) 0%, rgba(220, 0, 70, 0.02) 100%);
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000 40%, transparent 85%);
  mask-image: linear-gradient(to bottom, #000 40%, transparent 85%);
}

.cs-hero__content {
  position: relative;
  max-width: 680px;
  margin-inline: auto;
}

.cs-hero__title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: var(--weight-extrabold);
  letter-spacing: -0.035em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  line-height: var(--leading-tight);
}

.cs-hero__desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.cs-hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
}

.cs-hero__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.cs-hero__stat-num {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  line-height: 1;
}

.cs-hero__stat-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  font-weight: var(--weight-medium);
}

.cs-hero__stat-divider {
  width: 1px;
  height: 32px;
  background: rgba(0, 45, 82, 0.15);
}

.cs-hero + .section {
  padding-top: var(--space-4);
}

/* ---- Filter Controls ---- */
.cs-controls {
  position: sticky;
  top: calc(var(--nav-height) + 12px);
  z-index: var(--z-sticky);
  margin-top: calc(-1 * var(--space-4));
  margin-bottom: var(--space-8);
  background: rgba(255, 255, 255, 0.65);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  padding: var(--space-3) var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-2xl);
  box-shadow: 0 4px 24px rgba(0, 45, 82, 0.08),
              0 1px 3px rgba(0, 45, 82, 0.04);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

/* ---- Card Accent Colors ---- */
.card--case-study {
  border-top: 3px solid var(--_accent, transparent);
}

.card--case-study[data-category="energy-monitoring"] {
  --_accent: #2563eb;
}

.card--case-study[data-category="demand-response"] {
  --_accent: var(--color-accent);
}

/* ---- Empty State ---- */
.cs-empty {
  max-width: 34rem;
  margin: var(--space-12) auto 0;
  padding: var(--space-12) var(--space-8);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.04);
  text-align: center;
  display: none;
}

.cs-empty svg {
  opacity: 0.45;
  margin-bottom: var(--space-5);
}

.cs-empty.is-visible {
  display: block;
}

/* Hide cards that don't match filter */
.card--case-study.is-hidden {
  display: none;
}

@media (max-width: 480px) {
  .cs-controls {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}


/* ============================================================
   DOCUMENTATION / RESOURCE CENTER
   ============================================================ */

/* ---- Hero ---- */
.docs-hero {
  position: relative;
  padding: var(--space-20) 0 var(--space-16);
  text-align: center;
  background: #FFFFFF;
  overflow: visible;
  min-height: 540px;
  display: flex;
  align-items: center;
}

.docs-hero__pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 150%;
  background: url('/images/hero-docs.jpg') center top / max(100%, 1600px) auto no-repeat;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000 40%, transparent 85%);
  mask-image: linear-gradient(to bottom, #000 40%, transparent 85%);
}

.docs-hero__content {
  position: relative;
  max-width: 680px;
  margin-inline: auto;
}

.docs-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.docs-hero__eyebrow svg {
  opacity: 0.7;
}

.docs-hero__title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: var(--weight-extrabold);
  letter-spacing: -0.035em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  line-height: var(--leading-tight);
}

.docs-hero__desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  max-width: 520px;
  margin-inline: auto;
}

.docs-hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}

.docs-hero__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.docs-hero__stat-num {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  line-height: 1;
}

.docs-hero__stat-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  font-weight: var(--weight-medium);
}

.docs-hero__stat-divider {
  width: 1px;
  height: 32px;
  background: rgba(0, 45, 82, 0.15);
}

/* ---- Search (used in hero) ---- */
.docs-search {
  max-width: 520px;
  margin-inline: auto;
}

.docs-search__input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.docs-search__icon {
  position: absolute;
  left: var(--space-5);
  color: var(--color-gray-400);
  pointer-events: none;
  flex-shrink: 0;
}

.docs-hero .docs-search__icon {
  color: var(--color-gray-400);
}

.docs-search__input {
  width: 100%;
  padding: var(--space-4) 52px var(--space-4) calc(var(--space-5) + 28px);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
  outline: none;
}

.docs-hero .docs-search__input {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  box-shadow: 0 4px 24px rgba(0, 45, 82, 0.08);
}

.docs-hero .docs-search__input::placeholder {
  color: var(--color-gray-400);
}

.docs-hero .docs-search__input:focus {
  background: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 4px 24px rgba(0, 45, 82, 0.08), 0 0 0 3px rgba(0, 45, 82, 0.12);
}

.docs-search__input::placeholder {
  color: var(--color-gray-400);
}

.docs-search__input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg), 0 0 0 3px rgba(0, 45, 82, 0.12);
}

.docs-search__kbd {
  position: absolute;
  right: 14px;
  padding: 2px 8px;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-gray-400);
  background: var(--color-gray-50);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  line-height: 1.6;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.docs-hero .docs-search__kbd {
  color: var(--color-gray-400);
  background: var(--color-gray-50);
  border-color: var(--border-color);
}

.docs-search__input:focus ~ .docs-search__kbd,
.docs-search__clear:not([hidden]) ~ .docs-search__kbd {
  opacity: 0;
  pointer-events: none;
}

/* Clear button */
.docs-search__clear {
  position: absolute;
  right: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  color: var(--color-gray-500);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, opacity 0.15s ease;
}

.docs-search__clear[hidden] {
  display: flex !important;
  opacity: 0;
  pointer-events: none;
}

.docs-search__clear:not([hidden]) {
  opacity: 1;
}

.docs-search__clear:hover {
  background: var(--color-gray-200);
  color: var(--text-primary);
}

.docs-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.docs-filters {
  display: flex;
  gap: 2px;
  background: var(--color-gray-100);
  border-radius: var(--radius-xl);
  padding: 4px;
  border: 1px solid var(--border-subtle);
}

.docs-filter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px var(--space-5);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-tertiary);
  background: none;
  border: none;
  border-radius: calc(var(--radius-xl) - 2px);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.docs-filter svg {
  flex-shrink: 0;
  opacity: 0.5;
  transition: opacity var(--duration-fast);
}

.docs-filter:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.5);
}

.docs-filter:hover svg {
  opacity: 0.8;
}

.docs-filter.is-active {
  background: var(--bg-surface);
  color: var(--color-primary);
  box-shadow: 0 1px 3px rgba(0, 45, 82, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.docs-filter.is-active svg {
  opacity: 1;
  color: var(--color-primary);
}

.docs-filter__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 7px;
  margin-left: 2px;
  font-size: 11px;
  font-weight: var(--weight-bold);
  border-radius: var(--radius-full);
  background: var(--color-gray-200);
  color: var(--color-gray-600);
  line-height: 1;
}

.docs-filter.is-active .docs-filter__count {
  background: var(--color-primary);
  color: white;
}

.docs-filter[data-filter="datasheet"].is-active {
  color: #2563eb;
}

.docs-filter[data-filter="datasheet"].is-active svg {
  color: #2563eb;
}

.docs-filter[data-filter="datasheet"].is-active .docs-filter__count {
  background: #2563eb;
}

.docs-filter[data-filter="user-guide"].is-active {
  color: #0e9f6e;
}

.docs-filter[data-filter="user-guide"].is-active svg {
  color: #0e9f6e;
}

.docs-filter[data-filter="user-guide"].is-active .docs-filter__count {
  background: #0e9f6e;
}

/* Sticky controls container (toolbar + product filters together) */
.docs-controls.is-sticky {
  position: sticky;
  top: var(--nav-height);
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: var(--space-3) var(--space-6) var(--space-3);
  margin-left: calc(-1 * var(--space-6));
  margin-right: calc(-1 * var(--space-6));
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
}

.docs-controls.is-sticky .docs-toolbar {
  margin-bottom: var(--space-3);
}

.docs-controls.is-sticky .docs-product-filters {
  margin-bottom: 0;
}

.docs-count {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  font-weight: var(--weight-medium);
  font-variant-numeric: tabular-nums;
}

/* ---- Product family filter pills ---- */
.docs-product-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-10);
}

.docs-product-filter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px var(--space-5);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.docs-product-filter svg {
  flex-shrink: 0;
  opacity: 0.55;
  transition: opacity var(--duration-fast);
}

.docs-product-filter:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.docs-product-filter:hover svg {
  opacity: 1;
}

.docs-product-filter.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-primary);
}

.docs-product-filter.is-active svg {
  opacity: 1;
}

/* ---- Document Grid ---- */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

@media (max-width: 1100px) {
  .docs-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .docs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .docs-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin-inline: auto;
  }

  .docs-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .docs-filters {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .docs-product-filters {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-2);
    scrollbar-width: none;
  }

  .docs-product-filters::-webkit-scrollbar {
    display: none;
  }
}

/* ---- Document Card ---- */
.doc-card {
  --_accent: var(--color-primary);
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-top: 3px solid var(--_accent);
  border-radius: var(--radius-xl);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s var(--ease-out),
              box-shadow 0.2s var(--ease-out),
              border-color 0.2s var(--ease-out);
}

.doc-card[data-type="datasheet"] {
  --_accent: #2563eb;
}

.doc-card[data-type="user-guide"] {
  --_accent: #0e9f6e;
}

.doc-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.08);
  border-color: var(--_accent);
}

.doc-card__image {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-gray-50);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-3);
  position: relative;
  cursor: pointer;
}

.doc-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: top center;
  transition: transform 0.35s var(--ease-out);
}

.doc-card__ref {
  position: absolute;
  bottom: 8px;
  right: 8px;
  font-size: 10px;
  font-weight: var(--weight-medium);
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.92);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  line-height: 1.4;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.doc-card:hover .doc-card__ref {
  opacity: 0;
  transform: translateY(4px);
}

.doc-card:hover .doc-card__image img {
  transform: scale(1.05);
}

.doc-card__body {
  padding: var(--space-5) var(--space-6) var(--space-5);
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Badges */
.doc-card__badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  font-size: 10px;
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  padding: 3px 10px 3px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

.doc-card__badge--datasheet {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.07);
}

.doc-card__badge--guide {
  color: #0e9f6e;
  background: rgba(14, 159, 110, 0.07);
}

/* Focus-visible for keyboard navigation */
.doc-card:focus-visible {
  outline: 2px solid var(--_accent);
  outline-offset: 2px;
  border-color: var(--_accent);
}

.docs-filter:focus-visible,
.docs-product-filter:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Card enter animation for filtering */
@keyframes docCardIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.doc-card__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  line-height: var(--leading-snug);
}

.doc-card__desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  flex: 1;
  margin-bottom: var(--space-4);
}

.doc-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}

.doc-card__size {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-weight: var(--weight-medium);
}

/* Download indicator */
.doc-card__download-icon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-tertiary);
  transition: color 0.2s;
}

.doc-card__pdf-icon {
  flex-shrink: 0;
}

.doc-card__arrow {
  flex-shrink: 0;
  opacity: 0;
  transform: translate(-4px, 4px);
  transition: opacity 0.2s, transform 0.2s;
}

.doc-card:hover .doc-card__download-icon {
  color: var(--_accent);
}

.doc-card:hover .doc-card__arrow {
  opacity: 1;
  transform: translate(0, 0);
}

/* ---- Empty State ---- */
.docs-empty {
  text-align: center;
  padding: var(--space-20) var(--space-8);
}

.docs-empty svg {
  margin-bottom: var(--space-4);
}

.docs-empty__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.docs-empty__desc {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}


/* ------------------------------------------------------------
   LIGHTBOX
   ------------------------------------------------------------ */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease-out), visibility 0.3s;
}

.lightbox--open {
  opacity: 1;
  visibility: visible;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
}

.lightbox__content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox__image {
  max-width: 100%;
  max-height: 85vh;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox__close {
  position: absolute;
  top: -48px;
  right: -4px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  color: #FFFFFF;
  font-size: var(--text-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.08);
}


/* ============================================================
   PRINT STYLES
   ============================================================ */

@media print {
  .nav,
  .footer,
  .back-to-top,
  .cookie-banner,
  .cta-section {
    display: none !important;
  }

  .nav-spacer {
    height: 0;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }
}