/* ============================================================
   SMSO LLP — Shared Stylesheet  v2.0
   Single source of truth for all design tokens + layout.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --color-primary:      hsl(217, 60%, 26%); /* #1B3A6B */
  --color-primary-dark: hsl(217, 65%, 15%); /* #0a1b37 */
  --color-primary-mid:  hsl(217, 57%, 35%); /* #264d8c */
  --color-accent:       hsl(36, 78%, 45%);  /* #C8821A */
  --color-accent-light: hsl(36, 85%, 61%);  /* #f0a84a */
  --color-surface:      hsl(38, 24%, 95%);  /* #F5F0E8 */
  --color-surface-2:    hsl(38, 20%, 91%);  /* #EDE8DF */
  --color-dark:         hsl(240, 28%, 15%);  /* #1A1A2E */
  --color-mid:          hsl(217, 20%, 45%);  /* #5C6B8A */
  --color-mid-light:    hsl(217, 18%, 68%);  /* #8896B0 */
  --color-light:        hsl(217, 70%, 95%);  /* #EAF0FB */
  --color-white:        #FFFFFF;
  --color-error:        hsl(6, 63%, 46%);
  --color-success:      hsl(158, 62%, 31%);
  --color-success-bg:   hsl(158, 60%, 94%);
  --color-glow:         rgba(200, 130, 26, 0.15);

  --font-display: 'Noto Serif', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-md:   1.125rem;
  --fs-lg:   1.25rem;
  --fs-xl:   1.5rem;
  --fs-2xl:  2rem;
  --fs-3xl:  clamp(1.85rem, 4vw, 2.75rem);
  --fs-4xl:  clamp(2.35rem, 5.2vw, 3.85rem);

  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 2.75rem;
  --space-3xl: 4.5rem;

  --max-width: 1240px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --shadow-xs: 0 2px 4px rgba(27,58,107,.04);
  --shadow-sm: 0 4px 12px rgba(27,58,107,.06);
  --shadow-md: 0 10px 28px rgba(27,58,107,.09);
  --shadow-lg: 0 20px 48px rgba(27,58,107,.13);
  --shadow-xl: 0 30px 80px rgba(27,58,107,.18);

  --transition-fast:   150ms cubic-bezier(.25,.8,.25,1);
  --transition-base:   300ms cubic-bezier(.25,.8,.25,1);
  --transition-slow:   500ms cubic-bezier(.25,.8,.25,1);
  --transition-spring: 400ms cubic-bezier(.34,1.56,.64,1);

  --header-h: 72px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--color-dark);
  background: var(--color-surface);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ============================================================
   UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}
.section { padding-block: var(--space-3xl); }

.section-label {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  flex-shrink: 0;
}
.text-center .section-label { justify-content: center; }
.text-center .section-label::before { display: none; }

.section-title {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.18;
  margin-bottom: var(--space-md);
}
.section-subtitle {
  font-size: var(--fs-md);
  color: var(--color-mid);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
  line-height: 1.75;
}
.text-center { text-align: center; }
.text-center .section-subtitle { margin-inline: auto; }

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

/* ============================================================
   KOLAM SIGNATURE TEXTURE
   ============================================================ */
.kolam-bg { position: relative; overflow: hidden; }
.kolam-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(200,130,26,.2) 1.5px, transparent 1.5px),
    radial-gradient(circle, rgba(200,130,26,.08) 1px,   transparent 1px);
  background-size: 32px 32px, 16px 16px;
  background-position: 0 0, 8px 8px;
  pointer-events: none;
  z-index: 0;
  animation: kolam-drift 24s linear infinite;
}
@keyframes kolam-drift {
  from { background-position: 0 0, 8px 8px; }
  to   { background-position: 64px 64px, 72px 72px; }
}
.kolam-bg > * { position: relative; z-index: 1; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: var(--fs-base);
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition:
    transform var(--transition-spring),
    box-shadow var(--transition-base),
    background var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base);
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.18);
  opacity: 0;
  transition: opacity var(--transition-fast);
  border-radius: inherit;
}
.btn:active::after { opacity: 1; }
.btn:active        { transform: translateY(1px) scale(.99) !important; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
  color: var(--color-white);
  box-shadow: 0 2px 0 rgba(0,0,0,.15), 0 4px 14px rgba(200,130,26,.3),
              inset 0 1px 0 rgba(255,255,255,.15);
}
.btn-primary:hover {
  background: linear-gradient(135deg, hsl(36, 88%, 66%) 0%, hsl(36, 80%, 48%) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(200,130,26,.45);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: rgba(255,255,255,.08);
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,.4);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.18);
  border-color: rgba(255,255,255,.95);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-accent);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}
.btn-white:hover {
  background: var(--color-surface);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-sm  { padding: 0.45rem 1rem;   font-size: var(--fs-sm); border-radius: var(--radius-sm); }
.btn-lg  { padding: 0.85rem 1.85rem;  font-size: var(--fs-lg); }
.btn-full { width: 100%; justify-content: center; }

/* ============================================================
   HEADER — Glassmorphism and transitions
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition:
    background var(--transition-base),
    box-shadow var(--transition-base),
    height var(--transition-base);
}

/* Default transparent state (over hero) */
.site-header .logo-text      { color: var(--color-white); transition: color var(--transition-base); }
.site-header .nav-link       { color: rgba(255,255,255,.85); font-size: var(--fs-sm); font-weight: 500; position: relative; padding: 6px 12px; border-radius: var(--radius-sm); transition: color var(--transition-fast), background var(--transition-fast); }
.site-header .nav-link:hover { color: var(--color-white); background: rgba(255, 255, 255, 0.08); }
.site-header .nav-login      { color: rgba(255,255,255,.8); font-size: var(--fs-sm); font-weight: 500; transition: color var(--transition-fast); }
.site-header .hamburger span { background: var(--color-white); }

/* Scrolled state — modern glassmorphism */
.site-header.scrolled {
  height: calc(var(--header-h) - 10px);
  background: rgba(255,255,255,.8);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: 0 1px 0 rgba(0,0,0,.04), var(--shadow-sm);
}
.site-header.scrolled .logo-text      { color: var(--color-primary); }
.site-header.scrolled .nav-link       { color: var(--color-mid); }
.site-header.scrolled .nav-link:hover { color: var(--color-primary); background: rgba(27, 58, 107, 0.05); }
.site-header.scrolled .nav-login      { color: var(--color-mid); }
.site-header.scrolled .hamburger span { background: var(--color-dark); }

/* Solid state — non-hero pages */
.site-header.solid {
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 rgba(0,0,0,.05);
}
.site-header.solid .logo-text      { color: var(--color-primary); }
.site-header.solid .nav-link       { color: var(--color-mid); }
.site-header.solid .nav-link:hover { color: var(--color-primary); background: rgba(27, 58, 107, 0.05); }
.site-header.solid .nav-login      { color: var(--color-mid); }
.site-header.solid .hamburger span { background: var(--color-dark); }

/* Active Indicator */
.site-header .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0px; left: 12px; right: 12px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}
.site-header .nav-link.active::after { transform: scaleX(1); }
.site-header .nav-link.active { color: var(--color-accent) !important; font-weight: 600; }
.site-header.scrolled .nav-link.active,
.site-header.solid    .nav-link.active { color: var(--color-accent) !important; }
.site-header .nav-login:hover  { color: var(--color-accent); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

/* Logo styling */
.logo { display: flex; align-items: center; gap: 8px; position: relative; }
.logo-text {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  transition: color var(--transition-base);
}
.logo-dot { color: var(--color-accent); }

/* Desktop nav */
.primary-nav  { display: flex; align-items: center; gap: var(--space-xl); }
.nav-links    { display: flex; align-items: center; gap: var(--space-xs); }
.nav-actions  { display: flex; align-items: center; gap: var(--space-md); }

/* Hamburger drawer trigger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 36px;
  height: 36px;
  padding: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  transition: background var(--transition-fast);
}
.site-header.scrolled .hamburger,
.site-header.solid .hamburger { background: rgba(0,0,0,0.03); }
.hamburger:hover { background: rgba(255,255,255,0.15); }
.site-header.scrolled .hamburger:hover,
.site-header.solid .hamburger:hover { background: rgba(0,0,0,0.08); }

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile drawer navigation */
.mobile-nav {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(340px, 85vw);
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  padding: calc(var(--header-h) + var(--space-xl)) var(--space-xl) var(--space-xl);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  z-index: 999;
  overflow-y: auto;
  border-left: 1px solid rgba(0,0,0,0.05);
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav .nav-link {
  display: flex;
  align-items: center;
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--color-dark);
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(0,0,0,.06);
  opacity: 0;
  transform: translateX(16px);
  transition: color var(--transition-fast);
}
.mobile-nav .nav-link::after { display: none; }
.mobile-nav .nav-link.active { color: var(--color-accent); }
.mobile-nav .nav-link:hover  { color: var(--color-accent); }

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,36,71,.5);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(2px);
}
.mobile-overlay.visible { opacity: 1; pointer-events: all; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100svh;
  background: linear-gradient(150deg, var(--color-primary) 0%, #0b1f40 60%, #0f2447 100%);
  display: flex;
  align-items: center;
  padding-block: calc(var(--header-h) + var(--space-3xl)) var(--space-3xl);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}
/* Decorative arc */
.hero::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 80px;
  background: var(--color-surface);
  clip-path: ellipse(55% 100% at 50% 100%);
  z-index: 2;
}
.hero-inner {
  display: grid;
  grid-template-columns: 55fr 45fr;
  gap: var(--space-3xl);
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent-light, #f0a84a);
  background: rgba(200,130,26,.15);
  border: 1px solid rgba(200,130,26,.3);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: var(--space-lg);
}
.hero-title {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: 700;
  line-height: 1.08;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}
.hero-title em {
  font-style: normal;
  color: var(--color-accent);
  position: relative;
}
.hero-title em::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: -4px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 2px;
}
.hero-sub {
  font-size: var(--fs-md);
  color: rgba(255,255,255,.78);
  max-width: 520px;
  margin-bottom: var(--space-xl);
  line-height: 1.75;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-md); margin-bottom: var(--space-2xl); }
.hero-badges  { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.82);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 100px;
  padding: 7px 14px;
  backdrop-filter: blur(4px);
}
.trust-badge svg { color: var(--color-accent); flex-shrink: 0; }

/* Hero visual card */
.hero-visual { display: flex; align-items: center; justify-content: center; }
.hero-visual-card {
  width: 100%;
  max-width: 460px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-xl);
  overflow: hidden;
  backdrop-filter: blur(8px);
  box-shadow: 0 32px 64px rgba(0,0,0,.3);
}
.hero-visual-img {
  aspect-ratio: 4/3;
  background: linear-gradient(160deg, rgba(255,255,255,.1) 0%, rgba(255,255,255,.03) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.3);
  font-size: var(--fs-sm);
  text-align: center;
  padding: var(--space-xl);
  /* SWAP: replace with <img src="assets/hero-image.jpg" alt="Students learning"> */
}
.hero-visual-stats {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  border-top: 1px solid rgba(255,255,255,.1);
}
.hero-stat {
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  border-right: 1px solid rgba(255,255,255,.08);
}
.hero-stat:last-child { border-right: none; }
.hero-stat-num {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1;
  display: block;
}
.hero-stat-label {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.55);
  margin-top: 4px;
  display: block;
}

/* ============================================================
   CARDS (shared)
   ============================================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-spring), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(27, 58, 107, 0.06);
  position: relative;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.card-thumb {
  aspect-ratio: 16/9;
  background: var(--color-light);
  position: relative;
  overflow: hidden;
}
.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.card:hover .card-thumb img {
  transform: scale(1.06);
}
.card-thumb-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-mid) 100%);
  font-size: 2.5rem;
}
/* Category top-accent bar */
.card-accent-bar {
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
}
.card-body { padding: var(--space-lg); flex: 1; display: flex; flex-direction: column; }
.card-badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: hsla(36, 78%, 45%, 0.08);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: var(--space-md);
}
.card-title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--space-sm);
  line-height: 1.35;
}
.card-desc {
  font-size: var(--fs-sm);
  color: var(--color-mid);
  margin-bottom: var(--space-lg);
  line-height: 1.65;
}
.card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--fs-xs);
  color: var(--color-mid-light);
  margin-top: auto; /* Push metadata to bottom of body */
  padding-top: var(--space-md);
  border-top: 1px solid rgba(0,0,0,0.04);
}
.card-meta-item { display: flex; align-items: center; gap: 6px; }
.card-meta-item svg { color: var(--color-primary-mid); }
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid rgba(27, 58, 107, 0.06);
  background: hsla(217, 70%, 97%, 0.3);
  margin-top: auto;
}
.card-price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--color-primary);
}

/* ============================================================
   WHY US
   ============================================================ */
.why-us { background: var(--color-white); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}
.feature-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid rgba(0,0,0,.05);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.feature-card::before {
  content: attr(data-num);
  position: absolute;
  top: -12px; right: 16px;
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 700;
  color: rgba(27,58,107,.05);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: rgba(27,58,107,.08);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
  transition: background var(--transition-base);
}
.feature-card:hover .feature-icon { background: var(--color-primary); color: var(--color-white); }
.feature-title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-dark);
}
.feature-desc { font-size: var(--fs-sm); color: var(--color-mid); line-height: 1.7; }

/* ============================================================
   FEATURED COURSES
   ============================================================ */
.featured-courses { background: var(--color-surface); }
.courses-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--space-xl); }
.courses-grid.four-col { grid-template-columns: repeat(4,1fr); }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials { background: var(--color-primary); color: var(--color-white); }
.testimonials .section-title { color: var(--color-white); }
.testimonials .section-label { color: var(--color-accent); }
.testimonials .section-label::before { background: var(--color-accent); }

.testimonial-carousel { position: relative; overflow: hidden; }
.testimonial-track {
  display: flex;
  will-change: transform;
}
.testimonial-slide { min-width: 100%; padding: var(--space-md); }
.testimonial-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-3xl);
  max-width: 800px;
  margin-inline: auto;
  text-align: center;
  position: relative;
}
.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: var(--space-lg); left: var(--space-2xl);
  font-family: var(--font-display);
  font-size: 6rem;
  line-height: 1;
  color: rgba(200,130,26,.3);
  pointer-events: none;
}
.testimonial-quote {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-style: italic;
  line-height: 1.6;
  color: rgba(255,255,255,.92);
  margin-bottom: var(--space-xl);
  position: relative;
  z-index: 1;
}
.testimonial-author { display: flex; align-items: center; gap: var(--space-md); justify-content: center; }
.author-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: 2px solid rgba(200,130,26,.5);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
  /* SWAP: replace with <img src="..."> */
}
.author-name  { font-weight: 600; color: var(--color-white); font-size: var(--fs-base); }
.author-role  { font-size: var(--fs-sm); color: rgba(255,255,255,.58); }

.carousel-dots {
  display: flex; justify-content: center; gap: var(--space-sm);
  margin-top: var(--space-xl);
}
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.28);
  border: none; cursor: pointer;
  transition: background var(--transition-base), transform var(--transition-base), width var(--transition-base);
}
.dot.active {
  background: var(--color-accent);
  transform: scale(1.3);
  width: 24px;
  border-radius: 4px;
}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--color-accent) 0%, #9a5e12 100%);
  color: var(--color-white);
  text-align: center;
  padding-block: var(--space-3xl);
}
.cta-banner .section-title { color: var(--color-white); margin-bottom: var(--space-md); }
.cta-banner .section-label { color: rgba(255,255,255,.7); justify-content: center; }
.cta-banner .section-label::before { display: none; }
.cta-banner p { color: rgba(255,255,255,.85); max-width: 500px; margin-inline: auto; margin-bottom: var(--space-xl); font-size: var(--fs-md); }
.cta-actions { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }

/* ============================================================
   PAGE HERO (non-home pages)
   ============================================================ */
.page-hero {
  background: linear-gradient(150deg, var(--color-primary) 0%, #0b1f40 100%);
  color: var(--color-white);
  text-align: center;
  padding: calc(var(--header-h) + var(--space-3xl)) var(--space-xl) var(--space-3xl);
  position: relative;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 60px;
  background: var(--color-surface);
  clip-path: ellipse(60% 100% at 50% 100%);
}
.page-hero .section-title { color: var(--color-white); margin-bottom: var(--space-md); }
.page-hero > p, .page-hero .page-hero-sub {
  color: rgba(255,255,255,.78);
  max-width: 560px;
  margin-inline: auto;
  font-size: var(--fs-md);
  line-height: 1.75;
}

/* ============================================================
   FILTER BAR (courses page)
   ============================================================ */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  justify-content: center;
}
.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  font-size: var(--fs-sm);
  font-weight: 500;
  border: 2px solid transparent;
  background: var(--color-white);
  color: var(--color-mid);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
}
.filter-btn:hover  { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn.active { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); box-shadow: var(--shadow-sm); }

/* ============================================================
   COURSE DETAIL PAGE
   ============================================================ */
.course-detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-2xl);
  align-items: start;
}
.course-meta-tags { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-bottom: var(--space-lg); }
.meta-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--fs-sm); color: rgba(255,255,255,.8);
  background: rgba(255,255,255,.12);
  padding: 5px 14px; border-radius: 100px;
  border: 1px solid rgba(255,255,255,.15);
}
.course-description {
  font-size: var(--fs-md); color: var(--color-mid);
  line-height: 1.8; margin-bottom: var(--space-2xl);
}
.curriculum-section { margin-bottom: var(--space-2xl); }
.curriculum-section h2 { font-family: var(--font-display); font-size: var(--fs-2xl); margin-bottom: var(--space-lg); }
.accordion-item {
  border: 1px solid rgba(0,0,0,.08);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  overflow: hidden;
}
.accordion-trigger {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: var(--space-lg);
  background: var(--color-white);
  font-weight: 600; font-size: var(--fs-base);
  color: var(--color-dark); text-align: left;
  transition: background var(--transition-fast);
}
.accordion-trigger:hover { background: var(--color-light); }
.accordion-trigger[aria-expanded="true"] { background: var(--color-primary); color: var(--color-white); }
.accordion-icon { width: 20px; height: 20px; flex-shrink: 0; transition: transform var(--transition-base); }
.accordion-trigger[aria-expanded="true"] .accordion-icon { transform: rotate(180deg); }
.accordion-body { max-height: 0; overflow: hidden; transition: max-height var(--transition-slow) cubic-bezier(.4,0,.2,1); background: var(--color-surface); }
.accordion-body-inner { padding: var(--space-lg); }
.lesson-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.lesson-item {
  display: flex; align-items: center; gap: var(--space-md);
  font-size: var(--fs-sm); color: var(--color-mid);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(0,0,0,.05);
}
.lesson-item:last-child { border-bottom: none; }
.lesson-icon { color: var(--color-primary); flex-shrink: 0; }
.lesson-duration { margin-left: auto; font-size: var(--fs-xs); color: var(--color-mid-light); }

.enroll-sidebar {
  position: sticky;
  top: calc(var(--header-h) + var(--space-lg));
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,.06);
}
.sidebar-preview {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-primary), var(--color-mid));
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.4); font-size: var(--fs-sm);
  position: relative;
  overflow: hidden;
}
.sidebar-preview .play-btn:hover {
  transform: scale(1.1) !important;
}
.sidebar-body { padding: var(--space-xl); }
.sidebar-price {
  font-family: var(--font-display); font-size: var(--fs-3xl);
  font-weight: 700; color: var(--color-dark); margin-bottom: var(--space-lg);
}
.sidebar-price span { font-size: var(--fs-base); color: var(--color-mid); font-weight: 400; }
.sidebar-includes { margin-block: var(--space-lg); }
.sidebar-includes h4 { font-size: var(--fs-sm); font-weight: 600; margin-bottom: var(--space-sm); color: var(--color-mid); text-transform: uppercase; letter-spacing: .06em; }
.includes-item { display: flex; align-items: center; gap: var(--space-sm); font-size: var(--fs-sm); color: var(--color-mid); margin-bottom: 8px; }
.includes-item svg { color: var(--color-success); flex-shrink: 0; }

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.mission-section { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3xl); align-items: center; }
.mission-visual {
  aspect-ratio: 1;
  max-width: 480px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-mid) 100%);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.25); font-size: var(--fs-sm);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.mission-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.stat-row { display: flex; gap: var(--space-xl); margin-block: var(--space-xl); flex-wrap: wrap; }
.stat-number {
  font-family: var(--font-display); font-size: var(--fs-3xl);
  font-weight: 700; color: var(--color-primary); line-height: 1;
}
.stat-label { font-size: var(--fs-sm); color: var(--color-mid); margin-top: 4px; }
.team-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--space-xl); margin-top: var(--space-2xl); }
.team-card {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,.05);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.team-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-mid) 0%, var(--color-primary-dark) 100%);
  border: 3px solid var(--color-surface-2);
  margin: 0 auto var(--space-md);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: var(--fs-xl); font-weight: 700;
  color: var(--color-accent-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-base), transform var(--transition-base);
}
.team-card:hover .team-avatar { border-color: var(--color-accent); transform: scale(1.05); }
.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-name { font-family: var(--font-display); font-weight: 600; font-size: var(--fs-base); margin-bottom: 4px; }
.team-role { font-size: var(--fs-sm); color: var(--color-mid); }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3xl); align-items: start; }
.contact-form-wrapper {
  background: var(--color-white); border-radius: var(--radius-xl);
  padding: var(--space-2xl); box-shadow: var(--shadow-md);
  border: 1px solid rgba(0,0,0,.05);
}
.form-title { font-family: var(--font-display); font-size: var(--fs-2xl); font-weight: 700; margin-bottom: var(--space-xl); color: var(--color-dark); }
.form-group { margin-bottom: var(--space-lg); }
.form-label { display: block; font-size: var(--fs-sm); font-weight: 600; margin-bottom: var(--space-sm); color: var(--color-dark); }
.form-label span { color: var(--color-error); margin-left: 2px; }
.form-input, .form-textarea {
  width: 100%; padding: 0.8rem 1rem;
  border: 1.5px solid rgba(0,0,0,.12);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-dark);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  resize: vertical;
}
.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27,58,107,.1);
  background: var(--color-white);
}
.form-input.error, .form-textarea.error { border-color: var(--color-error); }
.field-error { display: block; font-size: var(--fs-xs); color: var(--color-error); margin-top: 4px; min-height: 16px; }
.form-textarea { min-height: 140px; }
.form-success { display: none; text-align: center; padding: var(--space-2xl); }
.form-success.visible { display: block; }
.form-success svg { width: 56px; height: 56px; color: var(--color-success); display: block; margin: 0 auto var(--space-md); }
.form-success h3 { font-family: var(--font-display); font-size: var(--fs-xl); margin-bottom: var(--space-sm); }
.form-success p { color: var(--color-mid); }
.contact-info { padding-top: var(--space-md); }
.contact-info-title { font-family: var(--font-display); font-size: var(--fs-2xl); font-weight: 700; margin-bottom: var(--space-xl); }
.contact-detail { display: flex; align-items: flex-start; gap: var(--space-lg); margin-bottom: var(--space-xl); }
.contact-icon {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  background: rgba(27,58,107,.08);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary); flex-shrink: 0;
}
.contact-detail-label { font-size: var(--fs-sm); font-weight: 600; color: var(--color-mid); margin-bottom: 4px; }
.contact-detail-value { font-size: var(--fs-base); color: var(--color-dark); }
.contact-detail-value a { color: var(--color-primary); transition: color var(--transition-fast); }
.contact-detail-value a:hover { color: var(--color-accent); }
.map-placeholder {
  margin-top: var(--space-xl); border-radius: var(--radius-lg);
  height: 220px; background: var(--color-light);
  border: 2px dashed rgba(0,0,0,.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-mid); font-size: var(--fs-sm);
  /* SWAP: <iframe> Google Maps embed */
}

/* ============================================================
   INSTRUCTOR
   ============================================================ */
.instructor-card {
  display: flex; align-items: center; gap: var(--space-xl);
  background: var(--color-white); border-radius: var(--radius-xl);
  padding: var(--space-xl); box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,.05);
  margin-bottom: var(--space-2xl);
}
.instructor-avatar {
  width: 88px; height: 88px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-mid) 0%, var(--color-primary-dark) 100%);
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: var(--fs-2xl); font-weight: 700;
  color: var(--color-accent-light);
  overflow: hidden;
  border: 3px solid var(--color-surface-2);
  box-shadow: var(--shadow-sm);
}
.instructor-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.instructor-name  { font-family: var(--font-display); font-size: var(--fs-xl); font-weight: 600; margin-bottom: 4px; }
.instructor-role  { font-size: var(--fs-sm); color: var(--color-accent); font-weight: 600; margin-bottom: var(--space-sm); }
.instructor-bio   { font-size: var(--fs-sm); color: var(--color-mid); line-height: 1.7; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,.7);
  padding-block: var(--space-3xl) var(--space-xl);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
.footer-brand .logo-text { color: var(--color-white); }
.footer-blurb { font-size: var(--fs-sm); color: rgba(255,255,255,.55); margin-block: var(--space-md); line-height: 1.75; }
.footer-socials { display: flex; gap: var(--space-md); flex-wrap: wrap; }
.footer-social-link {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.09);
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,.1);
  transition: background var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}
.footer-social-link:hover { background: var(--color-accent); border-color: var(--color-accent); transform: translateY(-3px); }
.footer-col-title { font-family: var(--font-display); font-size: var(--fs-base); font-weight: 600; color: var(--color-white); margin-bottom: var(--space-lg); }
.footer-links { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer-link { font-size: var(--fs-sm); color: rgba(255,255,255,.55); transition: color var(--transition-fast), padding-left var(--transition-fast); }
.footer-link:hover { color: var(--color-accent); padding-left: 4px; }
.footer-contact-item { display: flex; align-items: flex-start; gap: var(--space-sm); font-size: var(--fs-sm); color: rgba(255,255,255,.55); margin-bottom: var(--space-sm); }
.footer-contact-item svg { flex-shrink: 0; margin-top: 3px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: var(--fs-xs); color: rgba(255,255,255,.38);
}
.footer-legal { display: flex; gap: var(--space-lg); }
.footer-legal a { color: rgba(255,255,255,.38); transition: color var(--transition-fast); }
.footer-legal a:hover { color: var(--color-accent); }

/* ============================================================
   RESPONSIVE — single block per breakpoint, no duplicates
   ============================================================ */
@media (max-width: 1024px) {
  .features-grid         { grid-template-columns: repeat(2,1fr); }
  .courses-grid          { grid-template-columns: repeat(2,1fr); }
  .courses-grid.four-col { grid-template-columns: repeat(2,1fr); }
  .footer-grid           { grid-template-columns: 1fr 1fr; }
  .team-grid             { grid-template-columns: repeat(2,1fr); }
  .course-detail-layout  { grid-template-columns: 1fr; }
  .enroll-sidebar        { position: static; }
  .mission-visual        { min-height: 300px; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .primary-nav    { display: none; }
  .hamburger      { display: flex; }
  .hero-inner     { grid-template-columns: 1fr; }
  .hero-visual    { display: none; }
  .hero::after    { height: 50px; }
  .hero-title     { font-size: clamp(2rem, 8vw, 3rem); }
  .mission-section { grid-template-columns: 1fr; }
  .mission-visual  { display: none; }
  .contact-layout  { grid-template-columns: 1fr; }
  .footer-grid     { grid-template-columns: 1fr; }
  .courses-grid    { grid-template-columns: 1fr; }
  .features-grid   { grid-template-columns: 1fr; }
  .team-grid       { grid-template-columns: repeat(2,1fr); }
  .testimonial-card { padding: var(--space-xl); }
  .testimonial-card::before { display: none; }
}

@media (max-width: 480px) {
  .container          { padding-inline: var(--space-lg); }
  .section            { padding-block: var(--space-2xl); }
  .hero-actions       { flex-direction: column; align-items: stretch; }
  .hero-badges        { flex-direction: column; }
  .trust-badge        { justify-content: center; }
  .team-grid          { grid-template-columns: 1fr 1fr; }
  .stat-row           { gap: var(--space-lg); }
  .contact-form-wrapper { padding: var(--space-lg); }
  .instructor-card    { flex-direction: column; text-align: center; }
  .course-detail-layout { gap: var(--space-lg); }
  .sidebar-body       { padding: var(--space-lg); }
  .footer-socials     { flex-wrap: wrap; }
  .cta-actions        { flex-direction: column; align-items: center; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
.reduced-motion *, .reduced-motion *::before, .reduced-motion *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
  scroll-behavior: auto !important;
}