/* ============================================================
   GETDERA.COM — Layout Stylesheet
   Structural CSS: Container → Header → Navigation → Hero
                   → Section Grids → Footer → Responsive
   Version: 1.0.0
   Requires: global.css (design tokens must be loaded first)
   ============================================================ */

/* ============================================================
   1. CONTAINER SYSTEM
   ============================================================ */

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

.container--wide {
  max-width: var(--container-wide);
  padding-inline: var(--space-8);
}

.container--narrow {
  max-width: 760px;
  padding-inline: var(--space-6);
}

/* Fluid responsive container */
.container--fluid {
  width: 100%;
  padding-inline: var(--space-6);
}

/* ============================================================
   2. SITE HEADER
   ============================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(9, 11, 17, 0.0);
  border-bottom: 1px solid transparent;
  transition:
    background var(--transition-smooth),
    border-color var(--transition-smooth),
    backdrop-filter var(--transition-smooth),
    box-shadow var(--transition-smooth);
}

/* Scrolled state — applied via JS */
.site-header.is-scrolled {
  background: rgba(9, 11, 17, 0.88);
  backdrop-filter: blur(20px) saturate(1.6);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  border-bottom-color: var(--border-color);
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.3);
}

.site-header__inner {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* ============================================================
   3. LOGO
   ============================================================ */

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo__mark {
  width: 36px;
  height: 36px;
  background: var(--gradient-brand);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: var(--font-weight-bold);
  color: white;
  box-shadow: var(--shadow-primary);
  transition: box-shadow var(--transition-base), transform var(--transition-spring);
}

.site-logo:hover .site-logo__mark {
  transform: scale(1.1) rotate(-3deg);
  box-shadow: var(--shadow-primary-lg);
}

.site-logo__wordmark {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

/* ============================================================
   4. PRIMARY NAVIGATION
   ============================================================ */

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

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

.primary-nav__item {
  position: relative;
}

.primary-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition:
    color var(--transition-fast),
    background var(--transition-fast);
  white-space: nowrap;
}

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

.primary-nav__link.is-active {
  color: var(--color-primary-300);
}

/* Dropdown arrow chevron */
.primary-nav__link--has-dropdown::after {
  content: '';
  display: block;
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  transition: transform var(--transition-base);
}

.primary-nav__item:hover .primary-nav__link--has-dropdown::after {
  transform: rotate(180deg);
}

/* Dropdown menu */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(-8px);
  transition:
    opacity var(--transition-base),
    transform var(--transition-base),
    visibility var(--transition-base);
  z-index: var(--z-dropdown);
}

.primary-nav__item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-dropdown__link:hover {
  background: var(--bg-glass);
  color: var(--text-primary);
}

.nav-dropdown__divider {
  height: 1px;
  background: var(--border-color);
  margin-block: var(--space-2);
}

/* ============================================================
   5. HEADER ACTIONS (right side)
   ============================================================ */

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Language switcher */
.lang-switcher {
  position: relative;
}

.lang-switcher__btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.lang-switcher__btn:hover {
  border-color: var(--border-color-hover);
  color: var(--text-primary);
  background: var(--bg-glass-hover);
}

.lang-switcher__flag {
  font-size: 1.1rem;
  line-height: 1;
}

.lang-switcher__code {
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 160px;
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition:
    opacity var(--transition-base),
    transform var(--transition-base),
    visibility var(--transition-base);
  z-index: var(--z-dropdown);
}

.lang-switcher:hover .lang-switcher__dropdown,
.lang-switcher__dropdown.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switcher__option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
}

.lang-switcher__option:hover {
  background: var(--bg-glass);
  color: var(--text-primary);
}

.lang-switcher__option.is-active {
  color: var(--color-primary-300);
}

/* ============================================================
   6. MOBILE MENU TOGGLE
   ============================================================ */

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  padding: 0;
}

.mobile-menu-toggle:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-color-hover);
}

.mobile-menu-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
  transform-origin: center;
}

/* Hamburger → X transition */
.mobile-menu-toggle.is-open .mobile-menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-menu-toggle.is-open .mobile-menu-toggle__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.mobile-menu-toggle.is-open .mobile-menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   7. MOBILE NAVIGATION DRAWER
   ============================================================ */

.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(9, 11, 17, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--border-color);
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  gap: var(--space-2);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  visibility: hidden;
}

.mobile-nav.is-open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    color var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link.is-active {
  color: var(--text-primary);
  background: var(--bg-glass);
  border-color: var(--border-color);
}

.mobile-nav__link.is-active {
  color: var(--color-primary-300);
  border-color: var(--border-primary);
}

.mobile-nav__divider {
  height: 1px;
  background: var(--border-color);
  margin-block: var(--space-3);
}

.mobile-nav__actions {
  margin-top: auto;
  padding-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* Overlay backdrop */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.mobile-nav-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
}

/* ============================================================
   8. HERO SECTION — FULL PAGE LAYOUT
   ============================================================ */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero--short {
  min-height: 60svh;
  padding-block: calc(var(--header-height) + var(--space-16)) var(--space-20);
}

.hero--page {
  min-height: 40svh;
  padding-block: calc(var(--header-height) + var(--space-12)) var(--space-16);
}

/* Hero background layers */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: var(--z-below);
  background: var(--gradient-hero);
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  z-index: var(--z-below);
}

.hero__bg-glow-1 {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(ellipse, rgba(99,102,241,0.18) 0%, transparent 60%);
  filter: blur(60px);
  z-index: var(--z-below);
}

.hero__bg-glow-2 {
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(249,115,22,0.12) 0%, transparent 60%);
  filter: blur(60px);
  z-index: var(--z-below);
}

/* Hero content layout */
.hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.hero__content {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.hero__content--center {
  max-width: 820px;
  margin-inline: auto;
  text-align: center;
  align-items: center;
}

.hero__eyebrow {
  animation: fade-slide-in 0.6s ease 0.1s both;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight);
  line-height: 1.05;
  animation: fade-slide-in 0.6s ease 0.2s both;
}

.hero__subtitle {
  font-size: clamp(var(--font-size-base), 2vw, var(--font-size-xl));
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  max-width: 600px;
  animation: fade-slide-in 0.6s ease 0.35s both;
}

.hero__content--center .hero__subtitle {
  max-width: 620px;
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  animation: fade-slide-in 0.6s ease 0.5s both;
}

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

.hero__trust {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  animation: fade-slide-in 0.6s ease 0.65s both;
}

.hero__trust-text {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.hero__trust-avatars {
  display: flex;
}

.hero__trust-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-page);
  object-fit: cover;
  margin-left: -8px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  color: white;
}

.hero__trust-avatar:first-child { margin-left: 0; }

/* Hero split layout (image on right) */
.hero__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.hero__visual {
  position: relative;
  animation: fade-slide-right 0.8s ease 0.4s both;
}

.hero__visual-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

/* Floating badge decoration on hero visual */
.hero__floating-badge {
  position: absolute;
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  white-space: nowrap;
  animation: float 4s ease-in-out infinite;
  z-index: 1;
}

.hero__floating-badge--1 {
  top: 10%;
  left: -5%;
  animation-delay: 0s;
}

.hero__floating-badge--2 {
  bottom: 15%;
  right: -5%;
  animation-delay: 1.5s;
}

.hero__floating-badge__icon {
  font-size: 1.2em;
}

/* ============================================================
   9. FEATURES / SERVICES GRID
   ============================================================ */

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

.features-grid--2col { grid-template-columns: repeat(2, 1fr); }
.features-grid--4col { grid-template-columns: repeat(4, 1fr); }
.features-grid--auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ============================================================
   10. COURSES GRID
   ============================================================ */

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

.courses-grid--2col { grid-template-columns: repeat(2, 1fr); }
.courses-grid--4col { grid-template-columns: repeat(4, 1fr); }

/* ============================================================
   11. STATS BAR
   ============================================================ */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding: var(--space-12) 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stats-bar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
  padding-block: var(--space-4);
  position: relative;
}

.stats-bar__item + .stats-bar__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--border-color);
}

.stats-bar__number {
  font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-5xl));
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  line-height: 1;
}

.stats-bar__label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-weight: var(--font-weight-medium);
}

/* ============================================================
   12. PRICING GRID
   ============================================================ */

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

/* ============================================================
   13. BLOG GRID
   ============================================================ */

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

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

/* Blog post card */
.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-smooth);
}

.blog-card:hover {
  border-color: var(--border-primary);
  box-shadow: var(--shadow-primary);
  transform: translateY(-4px);
}

.blog-card__thumbnail {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary-900), var(--color-primary-700));
  flex-shrink: 0;
}

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

.blog-card:hover .blog-card__thumbnail img {
  transform: scale(1.05);
}

.blog-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.blog-card__category {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-400);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.blog-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  line-height: var(--line-height-snug);
  transition: color var(--transition-fast);
}

.blog-card:hover .blog-card__title {
  color: var(--color-primary-300);
}

.blog-card__excerpt {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-color);
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* ============================================================
   14. FAQ LAYOUT
   ============================================================ */

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-16);
  align-items: start;
}

.faq-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ============================================================
   15. CONTACT LAYOUT
   ============================================================ */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-info__icon {
  width: 44px;
  height: 44px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info__label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-1);
}

.contact-info__value {
  font-size: var(--font-size-base);
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
}

/* ============================================================
   16. ABOUT PAGE LAYOUTS
   ============================================================ */

.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.team-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-8) var(--space-6);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  text-align: center;
  transition:
    border-color var(--transition-base),
    transform var(--transition-smooth),
    box-shadow var(--transition-base);
}

.team-card:hover {
  border-color: var(--border-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-primary);
}

.team-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 3px solid var(--border-primary);
}

.team-card__name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.team-card__role {
  font-size: var(--font-size-sm);
  color: var(--color-primary-400);
  font-weight: var(--font-weight-medium);
}

.team-card__bio {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: var(--line-height-relaxed);
}

/* ============================================================
   17. TESTIMONIALS SECTION LAYOUT
   ============================================================ */

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

/* ============================================================
   18. CTA SECTION
   ============================================================ */

.cta-section {
  padding: var(--space-20) var(--space-6);
  border-radius: var(--radius-2xl);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, rgba(99,102,241,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section__title {
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-snug);
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.cta-section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 520px;
  line-height: var(--line-height-relaxed);
  position: relative;
  z-index: 1;
}

.cta-section__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 1;
}

/* ============================================================
   19. SITE FOOTER
   ============================================================ */

.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding-top: var(--space-20);
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
}

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

.footer-brand__desc {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: var(--line-height-relaxed);
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.footer-social__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.95rem;
  text-decoration: none;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-spring);
}

.footer-social__link:hover {
  border-color: var(--border-primary);
  background: rgba(99,102,241,0.1);
  color: var(--color-primary-300);
  transform: translateY(-2px);
}

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

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links__item a {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

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

/* Footer bottom bar */
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-block: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom__copy {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

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

.footer-bottom__links a {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-bottom__links a:hover {
  color: var(--text-secondary);
}

/* Newsletter in footer */
.newsletter-form {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.newsletter-form .form-input {
  flex: 1;
  min-width: 0;
  font-size: var(--font-size-sm);
  padding: 0.6em 1em;
}

/* ============================================================
   20. PAGE HERO (inner pages)
   ============================================================ */

.page-hero {
  position: relative;
  padding-block: calc(var(--header-height) + var(--space-16)) var(--space-16);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(99,102,241,0.08) 0%, transparent 100%);
  z-index: 0;
}

.page-hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
}

.page-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding-inline: var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
}

.page-hero__title {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-6xl));
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight);
}

.page-hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  max-width: 560px;
}

/* ============================================================
   21. STICKY SIDEBAR LAYOUT (Course Detail etc.)
   ============================================================ */

.sidebar-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-12);
  align-items: start;
}

.sidebar-layout__sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

.sidebar-widget {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

/* ============================================================
   22. SKELETON LOADERS
   ============================================================ */

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.skeleton {
  background: var(--bg-surface-raised);
  border-radius: var(--radius-md);
  animation: skeleton-pulse 1.5s ease infinite;
}

.skeleton--text {
  height: 1em;
  width: 80%;
}

.skeleton--title {
  height: 1.5em;
  width: 60%;
}

.skeleton--avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
}

.skeleton--thumb {
  aspect-ratio: 16/9;
  width: 100%;
  border-radius: var(--radius-xl);
}

/* ============================================================
   23. RESPONSIVE BREAKPOINTS
   ============================================================ */

/* ---- 1280px — standard desktop breakpoint ---- */
@media (max-width: 1280px) {
  .team-grid           { grid-template-columns: repeat(3, 1fr); }
  .footer-main         { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-brand        { grid-column: 1 / -1; }
}

/* ---- 1024px — large tablet / small desktop ---- */
@media (max-width: 1024px) {
  :root {
    --header-height: var(--header-height-sm);
  }

  /* Collapse main nav for mobile */
  .primary-nav         { display: none; }
  .mobile-menu-toggle  { display: flex; }

  /* Grids */
  .features-grid       { grid-template-columns: repeat(2, 1fr); }
  .courses-grid        { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid        { grid-template-columns: 1fr; max-width: 520px; margin-inline: auto; }
  .blog-grid           { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid   { grid-template-columns: repeat(2, 1fr); }
  .stats-bar           { grid-template-columns: repeat(2, 1fr); }
  .stats-bar__item + .stats-bar__item::before { display: none; }

  /* Layouts */
  .sidebar-layout      { grid-template-columns: 1fr; }
  .sidebar-layout__sidebar { position: static; }
  .hero__split         { grid-template-columns: 1fr; gap: var(--space-12); }
  .hero__visual        { display: none; }
  .faq-layout          { grid-template-columns: 1fr; }
  .faq-sidebar         { position: static; }
  .about-story         { grid-template-columns: 1fr; gap: var(--space-10); }
  .contact-layout      { grid-template-columns: 1fr; }
  .contact-info        { position: static; }
  .team-grid           { grid-template-columns: repeat(2, 1fr); }
  .footer-main         { grid-template-columns: 1fr 1fr; }
}

/* ---- 768px — tablet ---- */
@media (max-width: 768px) {
  :root {
    --space-24: 4rem;
    --space-20: 3.5rem;
    --space-16: 3rem;
  }

  .section             { padding-block: var(--space-16); }
  .section--lg         { padding-block: var(--space-20); }

  .section-intro       { margin-bottom: var(--space-10); }
  .hero__actions       { flex-direction: column; align-items: flex-start; }
  .hero__content--center .hero__actions { align-items: center; }

  .features-grid       { grid-template-columns: 1fr; }
  .courses-grid        { grid-template-columns: 1fr; max-width: 480px; margin-inline: auto; }
  .blog-grid           { grid-template-columns: 1fr; max-width: 540px; margin-inline: auto; }
  .testimonials-grid   { grid-template-columns: 1fr; max-width: 480px; margin-inline: auto; }
  .stats-bar           { grid-template-columns: 1fr 1fr; }
  .about-story         { gap: var(--space-8); }
  .team-grid           { grid-template-columns: repeat(2, 1fr); }
  .footer-main         { grid-template-columns: 1fr; }
  .footer-bottom       { flex-direction: column; text-align: center; }
  .footer-bottom__links{ justify-content: center; }

  .cta-section         { padding: var(--space-14) var(--space-6); }
  .cta-section__actions{ flex-direction: column; }

  .newsletter-form     { flex-direction: column; }

  .hero__floating-badge { display: none; }
}

/* ---- 480px — mobile phones ---- */
@media (max-width: 480px) {
  :root {
    --space-8:  1.5rem;
    --space-12: 2.25rem;
  }

  .container           { padding-inline: var(--space-4); }
  .hero__inner         { padding-inline: var(--space-4); }

  .stats-bar           { grid-template-columns: 1fr; }

  .card__body          { padding: var(--space-5); }
  .feature-card        { padding: var(--space-5); }

  .btn--lg             { font-size: var(--font-size-base); padding: 0.85em 1.75em; }

  .team-grid           { grid-template-columns: 1fr; max-width: 300px; margin-inline: auto; }

  .pricing-grid        { max-width: 100%; }

  .toast               { left: var(--space-4); right: var(--space-4); bottom: var(--space-4); }
}

/* ============================================================
   24. SITE FOOTER — shared across all /en/ and /id/ pages
   ============================================================ */

.site-footer {
  background: rgba(7, 11, 22, 0.97);
  border-top: 1px solid var(--border-color);
  padding: 3.5rem var(--space-6) 0;
}

.site-footer__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* Brand column */
.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--text-primary);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight);
}

.footer-logo__mark {
  width: 32px;
  height: 32px;
  background: var(--gradient-brand);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  color: white;
  flex-shrink: 0;
}

.footer-tagline {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  color: var(--text-muted);
  max-width: 240px;
}

/* Social icons row */
.footer-socials {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.footer-social {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  text-decoration: none;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
}

.footer-social:hover {
  background: rgba(99,102,241,0.15);
  color: var(--color-primary-300);
  border-color: var(--border-primary);
}

/* Nav columns */
.footer-nav-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.footer-col__title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  color: var(--color-primary-400);
  margin-bottom: var(--space-4);
}

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

.footer-col__links a {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-decoration: none;
  line-height: var(--line-height-snug);
  transition: color var(--transition-fast);
}

.footer-col__links a:hover {
  color: var(--text-secondary);
}

/* Trust badges in footer */
.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.footer-badge {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--text-muted);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.2em 0.6em;
}

/* Bottom bar */
.site-footer__bottom {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-block: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copy,
.footer-made {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-700);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ============================================================
   25. UTILITY ADDITIONS
   ============================================================ */

.w-full  { width: 100%; }
.d-flex  { display: flex; }
.d-grid  { display: grid; }
.d-none  { display: none; }

/* Visibility helpers */
.hide-mobile   { display: block; }
.show-mobile   { display: none; }

/* ============================================================
   26. ADDITIONAL RESPONSIVE BREAKPOINTS (patch)
   ============================================================ */

/* ---- 860px — footer reflows ---- */
@media (max-width: 860px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-nav-cols {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-tagline  { max-width: 100%; }
}

/* ---- 640px — single column footer col + courses 2col ---- */
@media (max-width: 640px) {
  .courses-grid  { grid-template-columns: repeat(2, 1fr); max-width: 100%; }
  .site-footer__bottom { flex-direction: column; align-items: flex-start; gap: var(--space-2); }
}

/* ---- 480px — full single col mobile ---- */
@media (max-width: 480px) {
  .courses-grid       { grid-template-columns: 1fr; }
  .footer-nav-cols    { grid-template-columns: 1fr 1fr; }
  .hide-mobile        { display: none; }
  .show-mobile        { display: block; }
  .site-footer__inner { gap: 1.5rem; }
  .footer-tagline     { font-size: var(--font-size-xs); }
}

/* ---- 380px — small phones ---- */
@media (max-width: 380px) {
  .footer-nav-cols    { grid-template-columns: 1fr; }
  .header-actions .btn--outline { display: none; } /* hide "Get a Demo" on tiny phones, keep primary CTA */
}

/* ---- Reduced Motion Preference ---- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  .stagger > * {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ---- High Contrast Mode ---- */
@media (forced-colors: active) {
  .btn--primary,
  .btn--cta { border: 2px solid ButtonText; }
}

/* ============================================================
   END OF layout.css
   ============================================================ */