/* ============================================================
   R2 AI TECH — Main Stylesheet
   Theme: Futuristic Dark Tech | Cyan + Steel Blue
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Exo+2:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* ============================================================
   CSS Custom Properties
   ============================================================ */
:root {
  --bg-0: #04080f;
  --bg-1: #080f1c;
  --bg-2: #0e1628;
  --bg-3: #162038;
  --bg-card: rgba(12, 20, 36, 0.88);
  --cyan: #00d4ff;
  --cyan-light: #7aecff;
  --cyan-dim: rgba(0, 212, 255, 0.6);
  --cyan-glow: rgba(0, 212, 255, 0.12);
  --blue: #1a6dff;
  --blue-dark: #0a3d8f;
  --silver: #8baac4;
  --white: #f0f6ff;
  --gray-1: #cbd5e1;
  --gray-2: #5e7a96;
  --gray-3: #2a3d54;
  --green: #25d366;
  --border: rgba(0, 212, 255, 0.16);
  --border-bright: rgba(0, 212, 255, 0.45);
  --glow-sm: 0 0 14px rgba(0, 212, 255, 0.22);
  --glow-md: 0 0 32px rgba(0, 212, 255, 0.28);
  --glow-lg: 0 0 64px rgba(0, 212, 255, 0.18);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.55);
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Exo 2', sans-serif;
  --nav-h: 62px;
  --container: 1180px;
  --section-py: 84px;
  --radius: 10px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   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);
  background: var(--bg-0);
  color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

/* ============================================================
   Grid Background
   ============================================================ */
.grid-bg {
  background-image:
    linear-gradient(rgba(0,212,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.028) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* ============================================================
   Logo Banner
   ============================================================ */
.logo-banner {
  width: 100%;
  background: #080f1c;           /* matches logo dark edge — no visible seam */
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  position: relative;
}
.logo-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(0,212,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.logo-banner img {
  display: block;
  /* width: 100%; */
  height: 100px;
  /* object-fit: cover; */
  object-position: center;
}
.logo-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  height: 140px;
  background: var(--bg-1);
}
.logo-fallback .lf-name {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--cyan);
  letter-spacing: 0.12em;
  text-shadow: var(--glow-md);
}
.logo-fallback .lf-tag {
  font-family: var(--font-display);
  font-size: 0.65rem;
  color: var(--silver);
  letter-spacing: 0.35em;
  text-transform: uppercase;
}

/* ============================================================
   Navigation
   ============================================================ */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(6, 11, 21, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 24px rgba(0,0,0,0.4);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: 0.08em;
  text-shadow: var(--glow-sm);
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links > li { position: relative; }
.nav-links > li > a {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-1);
  border-radius: 5px;
  border: 1px solid transparent;
  transition: var(--transition);
}
.nav-links > li > a:hover,
.nav-links > li > a.active {
  color: var(--cyan);
  background: rgba(0,212,255,0.07);
  border-color: var(--border);
  text-shadow: 0 0 12px rgba(0,212,255,0.45);
}
.drop-arrow { font-size: 0.6rem; transition: transform 0.3s; }
.nav-links > li:hover .drop-arrow { transform: rotate(180deg); }

/* Dropdown */
.nav-drop {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 272px;
  background: rgba(6, 11, 21, 0.98);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: var(--transition);
  box-shadow: 0 20px 56px rgba(0,0,0,0.7), var(--glow-sm);
  backdrop-filter: blur(20px);
}
.nav-links > li:hover .nav-drop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-drop a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-size: 0.85rem;
  color: var(--gray-1);
  transition: var(--transition);
}
.nav-drop a:hover {
  color: var(--cyan);
  background: rgba(0,212,255,0.05);
  padding-left: 24px;
}
.nd-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan-dim);
  flex-shrink: 0;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Nav: Full-Screen Overlay ─────────────────────── */
.mob-nav {
  display: none;
  position: fixed;
  inset: 0;                          /* covers entire viewport */
  background: rgba(6, 11, 21, 0.99);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 9999;                     /* above everything */
  overflow-y: auto;
  flex-direction: column;
}
.mob-nav.open { display: flex; }

/* Header row inside overlay */
.mob-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(6, 11, 21, 0.99);
  z-index: 1;
  flex-shrink: 0;
}
.mob-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: 0.08em;
  text-shadow: var(--glow-sm);
}
.mob-close {
  background: rgba(0,212,255,0.08);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--cyan);
  font-size: 1.1rem;
  line-height: 1;
  padding: 6px 12px;
  cursor: pointer;
  transition: var(--transition);
}
.mob-close:hover { background: rgba(0,212,255,0.15); }

/* Nav link rows */
.mob-link {
  display: block;
  padding: 15px 28px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-1);
  border-bottom: 1px solid rgba(0,212,255,0.05);
  text-decoration: none;
  transition: var(--transition);
}
.mob-link:hover, .mob-link.active {
  color: var(--cyan);
  background: rgba(0,212,255,0.05);
  padding-left: 36px;
}
.mob-enquire {
  color: var(--cyan) !important;
  margin-top: 8px;
}

/* Courses toggle button */
.mob-courses-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 15px 28px;
  background: none;
  border: none;
  border-bottom: 1px solid rgba(0,212,255,0.05);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-1);
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
}
.mob-courses-btn:hover { color: var(--cyan); background: rgba(0,212,255,0.05); }
.mob-courses-btn.open  { color: var(--cyan); background: rgba(0,212,255,0.04); }
.mob-c-arrow { font-size: 0.75rem; transition: transform 0.3s; }
.mob-courses-btn.open .mob-c-arrow { transform: rotate(180deg); }

/* Collapsible course links */
.mob-courses-list {
  display: none;
  flex-direction: column;
  background: rgba(0,212,255,0.025);
  border-bottom: 1px solid rgba(0,212,255,0.05);
}
.mob-courses-list.open { display: flex; }
.mob-course-link {
  display: block;
  padding: 12px 28px 12px 48px;
  font-size: 0.82rem;
  color: var(--gray-2);
  border-bottom: 1px solid rgba(0,212,255,0.03);
  text-decoration: none;
  transition: var(--transition);
}
.mob-course-link:last-child { border-bottom: none; }
.mob-course-link:hover { color: var(--cyan); background: rgba(0,212,255,0.05); padding-left: 56px; }

/* ============================================================
   Container & Section Base
   ============================================================ */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
section { padding: var(--section-py) 0; }

.sec-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}
.sec-tag::before, .sec-tag::after {
  content: '';
  height: 1px;
  width: 28px;
  background: linear-gradient(90deg, transparent, var(--cyan-dim));
}
.sec-tag::after { background: linear-gradient(90deg, var(--cyan-dim), transparent); }

.sec-title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 14px;
  background: linear-gradient(130deg, var(--white) 30%, var(--cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sec-sub {
  font-size: 1rem;
  color: var(--gray-2);
  max-width: 600px;
  line-height: 1.85;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 5px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: var(--bg-0);
  box-shadow: var(--glow-sm);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-md);
  filter: brightness(1.08);
}
.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--cyan-dim);
}
.btn-outline:hover {
  background: rgba(0,212,255,0.07);
  border-color: var(--cyan);
  box-shadow: var(--glow-sm);
  transform: translateY(-2px);
}
.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--gray-1);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  color: var(--white);
}
.btn-lg { padding: 15px 36px; font-size: 0.72rem; }
.btn-full { width: 100%; }

/* ============================================================
   Hero (Home)
   ============================================================ */
.hero {
  position: relative;
  min-height: calc(100vh - 62px - 150px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 80px 0 180px;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0,212,255,0.07);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.72rem;
  color: var(--cyan);
  margin-bottom: 26px;
  letter-spacing: 0.1em;
  font-family: var(--font-display);
}
.pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse-anim 2.2s ease-in-out infinite;
}
@keyframes pulse-anim {
  0%,100%{ box-shadow: 0 0 0 0 rgba(0,212,255,0.5); }
  50%{ box-shadow: 0 0 0 7px rgba(0,212,255,0); }
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.8rem);
  font-weight: 900;
  line-height: 1.12;
  margin-bottom: 22px;
}
.hero h1 .hl {
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.05rem;
  color: var(--gray-1);
  line-height: 1.82;
  margin-bottom: 36px;
  max-width: 580px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Stats */
.hero-stats {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 2;
  padding: 0 24px;
}
.stats-row {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  background: rgba(8,15,28,0.85);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  backdrop-filter: blur(14px);
  overflow: hidden;
}
.stat-item {
  flex: 1;
  padding: 20px 28px;
  text-align: center;
  border-right: 1px solid var(--border);
  transition: var(--transition);
}
.stat-item:last-child { border-right: none; }
.stat-item:hover { background: rgba(0,212,255,0.04); }
.stat-num {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--cyan);
  text-shadow: var(--glow-sm);
  display: block;
  line-height: 1;
  margin-bottom: 5px;
}
.stat-label {
  font-size: 0.72rem;
  color: var(--gray-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================================
   Course Cards (Grid)
   ============================================================ */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 22px;
}
.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  position: relative;
}
.course-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,212,255,0.03) 0%, transparent 60%);
  pointer-events: none;
  transition: var(--transition);
}
.course-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-5px);
  box-shadow: var(--glow-md), var(--shadow);
}
.course-card:hover::before { opacity: 2; }
.card-head { padding: 26px 26px 18px; position: relative; }
.card-icon {
  width: 50px; height: 50px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  background: rgba(0,212,255,0.09);
  border: 1px solid rgba(0,212,255,0.2);
  margin-bottom: 16px;
}
.card-badge {
  position: absolute;
  top: 18px; right: 18px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--font-display);
}
.badge-new { background: rgba(0,212,255,0.12); border: 1px solid rgba(0,212,255,0.28); color: var(--cyan); }
.badge-hot { background: rgba(255,90,0,0.12); border: 1px solid rgba(255,90,0,0.3); color: #ff7733; }
.badge-soon { background: rgba(139,170,196,0.1); border: 1px solid rgba(139,170,196,0.2); color: var(--silver); }
.course-card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.35;
}
.course-card p { font-size: 0.85rem; color: var(--gray-2); line-height: 1.65; }
.card-foot {
  padding: 14px 26px 22px;
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid rgba(0,212,255,0.06);
}
.card-meta { display: flex; gap: 14px; }
.meta-item { display: flex; align-items: center; gap: 5px; font-size: 0.73rem; color: var(--gray-2); }

/* ============================================================
   Course Detail Page
   ============================================================ */
.course-detail-hero {
  padding: 70px 0 56px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.course-detail-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 0% 50%, rgba(0,212,255,0.06) 0%, transparent 55%),
              radial-gradient(ellipse at 100% 0%, rgba(26,109,255,0.05) 0%, transparent 50%);
  pointer-events: none;
}
.detail-hero-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 52px;
  align-items: start;
}
.detail-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.78rem; color: var(--gray-2); margin-bottom: 20px;
}
.detail-breadcrumb a { color: var(--cyan); transition: var(--transition); }
.detail-breadcrumb a:hover { text-shadow: var(--glow-sm); }
.detail-breadcrumb span { color: var(--gray-3); }
.detail-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 13px;
  background: rgba(0,212,255,0.08); border: 1px solid var(--border);
  border-radius: 100px; font-size: 0.65rem;
  color: var(--cyan); margin-bottom: 14px;
  letter-spacing: 0.1em; font-family: var(--font-display);
}
.course-detail-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 800; line-height: 1.18; margin-bottom: 16px;
  background: linear-gradient(130deg, var(--white) 30%, var(--cyan-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.course-detail-hero p { font-size: 0.97rem; color: var(--gray-1); line-height: 1.82; margin-bottom: 26px; }
.pills-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.pill {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 13px;
  background: rgba(0,212,255,0.05); border: 1px solid var(--border);
  border-radius: 100px; font-size: 0.76rem; color: var(--gray-1);
}
.pill-icon { color: var(--cyan); }

/* Enroll Card */
.enroll-card {
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 16px;
  padding: 30px;
  box-shadow: var(--glow-sm), var(--shadow);
  backdrop-filter: blur(14px);
  position: sticky;
  top: calc(var(--nav-h) + 20px);
}
.enroll-card .e-price-label { font-size: 0.72rem; color: var(--gray-2); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 4px; }
.enroll-card .e-price {
  font-family: var(--font-display);
  font-size: 1.9rem; font-weight: 900; color: var(--cyan);
  text-shadow: var(--glow-sm); margin-bottom: 4px; line-height: 1;
}
.enroll-card .e-note { font-size: 0.78rem; color: var(--gray-2); margin-bottom: 22px; }
.e-feats { margin-top: 20px; display: flex; flex-direction: column; gap: 11px; }
.e-feat { display: flex; align-items: center; gap: 10px; font-size: 0.82rem; color: var(--gray-1); }
.e-feat .ck { color: var(--cyan); flex-shrink: 0; font-size: 0.8rem; }
.enroll-divider { height: 1px; background: var(--border); margin: 20px 0; }

/* Topics Grid */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
}
.topic-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; transition: var(--transition);
}
.topic-item:hover { border-color: rgba(0,212,255,0.3); background: rgba(0,212,255,0.03); }
.t-check {
  width: 20px; height: 20px; border-radius: 50%;
  background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.3);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 1px; font-size: 0.65rem; color: var(--cyan);
}
.t-text { font-size: 0.86rem; color: var(--gray-1); line-height: 1.5; }

/* Accordion */
.accordion { display: flex; flex-direction: column; gap: 8px; }
.acc-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden;
}
.acc-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 15px 20px; cursor: pointer; transition: var(--transition); user-select: none;
}
.acc-header:hover { background: rgba(0,212,255,0.04); }
.acc-header.open { background: rgba(0,212,255,0.04); border-bottom: 1px solid var(--border); }
.acc-title {
  font-family: var(--font-display); font-size: 0.77rem; font-weight: 600;
  letter-spacing: 0.05em; color: var(--white);
  display: flex; align-items: center; gap: 10px;
}
.acc-num { font-size: 0.65rem; color: var(--cyan); font-weight: 400; }
.acc-arrow { color: var(--gray-2); font-size: 0.75rem; transition: transform 0.3s; }
.acc-header.open .acc-arrow { transform: rotate(180deg); color: var(--cyan); }
.acc-body { display: none; padding: 14px 20px 18px; }
.acc-header.open + .acc-body { display: block; }
.acc-lessons { display: flex; flex-direction: column; gap: 8px; }
.acc-lesson {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.82rem; color: var(--gray-2); padding: 2px 0;
}
.acc-lesson::before { content: '▸'; color: rgba(0,212,255,0.5); font-size: 0.68rem; flex-shrink: 0; }

/* ============================================================
   Page Hero (Sub-pages)
   ============================================================ */
.page-hero {
  padding: 60px 0 50px;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 15% 50%, rgba(0,212,255,0.05) 0%, transparent 55%);
  pointer-events: none;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 800; margin-bottom: 12px;
  background: linear-gradient(130deg, var(--white) 30%, var(--cyan-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.page-hero p { font-size: 1rem; color: var(--gray-2); max-width: 600px; }

/* ============================================================
   About Page
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px; align-items: center;
}
.about-vis {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 20px; padding: 52px 40px; text-align: center;
  position: relative; overflow: hidden;
}
.about-vis::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,212,255,0.06) 0%, transparent 65%);
}
.about-vis-icon { font-size: 5rem; display: block; margin-bottom: 16px; position: relative; z-index: 1; }
.about-vis-title {
  font-family: var(--font-display); font-size: 1.3rem; font-weight: 900;
  color: var(--cyan); letter-spacing: 0.1em; text-shadow: var(--glow-sm);
  margin-bottom: 6px; position: relative; z-index: 1;
}
.about-vis-sub {
  font-family: var(--font-display); font-size: 0.6rem;
  color: var(--silver); letter-spacing: 0.3em; text-transform: uppercase;
  position: relative; z-index: 1;
}
.about-text p { font-size: 0.97rem; color: var(--gray-1); line-height: 1.85; margin-bottom: 18px; }

.values-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 36px;
}
.value-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 22px; transition: var(--transition);
}
.value-card:hover { border-color: rgba(0,212,255,0.3); box-shadow: var(--glow-sm); }
.value-icon { font-size: 1.6rem; margin-bottom: 10px; }
.value-card h4 {
  font-family: var(--font-display); font-size: 0.7rem; font-weight: 700;
  color: var(--cyan); margin-bottom: 6px; letter-spacing: 0.08em; text-transform: uppercase;
}
.value-card p { font-size: 0.82rem; color: var(--gray-2); line-height: 1.6; }

/* Team */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 22px; }
.team-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 14px; padding: 28px; text-align: center; transition: var(--transition);
}
.team-card:hover { border-color: rgba(0,212,255,0.3); transform: translateY(-3px); }
.team-avatar {
  width: 76px; height: 76px; border-radius: 50%;
  background: linear-gradient(135deg, var(--bg-3), var(--blue-dark));
  border: 2px solid var(--border-bright);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; margin: 0 auto 16px;
}
.team-card h4 { font-family: var(--font-display); font-size: 0.88rem; font-weight: 700; margin-bottom: 4px; }
.team-card span { font-size: 0.78rem; color: var(--cyan); }
.team-card p { font-size: 0.8rem; color: var(--gray-2); margin-top: 10px; line-height: 1.55; }

/* ============================================================
   Contact Page
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 18px; padding: 38px; backdrop-filter: blur(10px);
}
.contact-card h2 {
  font-family: var(--font-display); font-size: 1.25rem; font-weight: 700;
  color: var(--white); margin-bottom: 28px; padding-bottom: 16px; border-bottom: 1px solid var(--border);
}
.c-item { display: flex; align-items: flex-start; gap: 16px; padding: 18px 0; border-bottom: 1px solid rgba(0,212,255,0.05); }
.c-item:last-child { border-bottom: none; }
.c-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: rgba(0,212,255,0.07); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.c-label { font-family: var(--font-display); font-size: 0.6rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gray-2); margin-bottom: 4px; }
.c-val { font-size: 0.93rem; color: var(--white); line-height: 1.55; }
.c-val a { color: var(--cyan); transition: var(--transition); }
.c-val a:hover { text-shadow: var(--glow-sm); }
.wa-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 20px;
  background: rgba(37,211,102,0.09); border: 1px solid rgba(37,211,102,0.28);
  border-radius: 100px; color: #25d366; font-size: 0.84rem; font-weight: 600;
  transition: var(--transition); margin-top: 8px;
}
.wa-btn:hover { background: rgba(37,211,102,0.14); box-shadow: 0 0 18px rgba(37,211,102,0.18); }

.map-box {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 12px; height: 220px;
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 10px;
  margin-top: 24px; position: relative; overflow: hidden;
}
.map-box::before {
  content: '';
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(0,212,255,0.035) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(0,212,255,0.035) 1px, transparent 1px);
  background-size: 28px 28px;
}
.map-pin { font-size: 2.4rem; position: relative; z-index: 1; animation: bounce 2.2s ease-in-out infinite; }
@keyframes bounce { 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-9px); } }
.map-label { font-family: var(--font-display); font-size: 0.68rem; color: var(--gray-2); letter-spacing: 0.12em; text-transform: uppercase; position: relative; z-index: 1; }

/* ============================================================
   Enquiry Page
   ============================================================ */
.enquiry-wrap { min-height: 80vh; display: flex; align-items: center; padding: var(--section-py) 0; }
.enquiry-box { max-width: 620px; margin: 0 auto; width: 100%; }
.enquiry-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 20px; padding: 46px; backdrop-filter: blur(14px); box-shadow: var(--shadow);
}
.eq-header { text-align: center; margin-bottom: 34px; }
.eq-icon { font-size: 2.4rem; margin-bottom: 12px; }
.eq-header h1 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.eq-header p { font-size: 0.87rem; color: var(--gray-2); }

/* Form */
.f-group { margin-bottom: 20px; }
.f-label {
  display: block;
  font-family: var(--font-display); font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--gray-2);
  margin-bottom: 8px;
}
.f-label .req { color: var(--cyan); margin-left: 2px; }
.f-control {
  width: 100%; padding: 12px 16px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  border-radius: 6px; color: var(--white);
  font-size: 0.92rem; transition: var(--transition); outline: none;
}
.f-control:focus {
  border-color: var(--cyan-dim); background: rgba(0,212,255,0.04);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.07);
}
.f-control::placeholder { color: var(--gray-3); }
.f-control:disabled { opacity: 0.55; cursor: not-allowed; }
select.f-control {
  cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='7' viewBox='0 0 10 7'%3E%3Cpath fill='%235e7a96' d='M5 7L0 0h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
select.f-control option { background: #0e1628; }
.radio-row { display: flex; gap: 10px; }
.radio-opt {
  flex: 1; display: flex; align-items: center; gap: 8px;
  padding: 11px 14px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  border-radius: 6px; cursor: pointer; transition: var(--transition);
}
.radio-opt:has(input:checked) { border-color: var(--cyan-dim); background: rgba(0,212,255,0.05); }
.radio-opt input { accent-color: var(--cyan); }
.radio-opt label { font-size: 0.87rem; cursor: pointer; color: var(--gray-1); }

.success-msg { display: none; text-align: center; padding: 40px 20px; }
.success-icon { font-size: 3.5rem; margin-bottom: 16px; }
.success-msg h3 { font-family: var(--font-display); font-size: 1.2rem; color: var(--cyan); margin-bottom: 10px; }
.success-msg p { font-size: 0.88rem; color: var(--gray-2); }

/* ============================================================
   CTA Section
   ============================================================ */
.cta-section {
  padding: 88px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,212,255,0.07) 0%, transparent 65%);
  pointer-events: none;
}
.cta-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.3rem); font-weight: 800; margin-bottom: 14px;
}
.cta-section p { font-size: 1rem; color: var(--gray-2); margin-bottom: 32px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--bg-1); border-top: 1px solid var(--border); padding: 52px 0 24px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand h3 { font-family: var(--font-display); font-size: 0.95rem; font-weight: 800; color: var(--cyan); margin-bottom: 12px; letter-spacing: 0.08em; text-shadow: var(--glow-sm); }
.footer-brand p { font-size: 0.84rem; color: var(--gray-2); line-height: 1.72; }
.footer-col h4 { font-family: var(--font-display); font-size: 0.6rem; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--silver); margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.84rem; color: var(--gray-2); transition: var(--transition); }
.footer-links a:hover { color: var(--cyan); padding-left: 6px; }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.footer-copy { font-size: 0.77rem; color: var(--gray-2); }
.footer-motto { font-family: var(--font-display); font-size: 0.6rem; color: var(--cyan-dim); letter-spacing: 0.2em; text-transform: uppercase; }

/* ============================================================
   Dividers & Misc
   ============================================================ */
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--border-bright), transparent); }

/* Why Us Section */
.why-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.why-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 14px; padding: 28px; transition: var(--transition); position: relative; overflow: hidden;
}
.why-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0; transition: var(--transition);
}
.why-card:hover { border-color: rgba(0,212,255,0.28); box-shadow: var(--glow-sm); transform: translateY(-3px); }
.why-card:hover::before { opacity: 1; }
.why-icon { font-size: 2rem; margin-bottom: 14px; }
.why-card h3 { font-family: var(--font-display); font-size: 0.8rem; font-weight: 700; color: var(--white); margin-bottom: 8px; letter-spacing: 0.06em; text-transform: uppercase; }
.why-card p { font-size: 0.84rem; color: var(--gray-2); line-height: 1.65; }

/* ============================================================
   Animations
   ============================================================ */
.fade-up { opacity: 0; transform: translateY(22px); transition: opacity 0.65s ease, transform 0.65s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up:nth-child(1) { transition-delay: 0s; }
.fade-up:nth-child(2) { transition-delay: 0.08s; }
.fade-up:nth-child(3) { transition-delay: 0.16s; }
.fade-up:nth-child(4) { transition-delay: 0.24s; }
.fade-up:nth-child(5) { transition-delay: 0.32s; }
.fade-up:nth-child(6) { transition-delay: 0.4s; }

/* ============================================================
   Utilities
   ============================================================ */
.text-center { text-align: center; }
.text-cyan { color: var(--cyan); }
.text-muted { color: var(--gray-2); }
.mb-8{margin-bottom:8px} .mb-16{margin-bottom:16px} .mb-24{margin-bottom:24px}
.mb-32{margin-bottom:32px} .mb-48{margin-bottom:48px} .mb-56{margin-bottom:56px}
.mt-8{margin-top:8px} .mt-16{margin-top:16px} .mt-24{margin-top:24px}
.mt-32{margin-top:32px} .mt-48{margin-top:48px}
.gap-bottom { border-bottom: 1px solid var(--border); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .detail-hero-inner { grid-template-columns: 1fr; }
  .enroll-card { position: static; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --section-py: 60px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .courses-grid { grid-template-columns: 1fr; }
  .topics-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 60px 0 140px; }
  .hero h1 { font-size: 2rem; }
  .stats-row { flex-wrap: wrap; }
  .stat-item { min-width: 50%; border-right: none; border-bottom: 1px solid var(--border); }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }
  .enquiry-card { padding: 26px 18px; }
  .radio-row { flex-direction: column; }
  .contact-card { padding: 24px; }
}
@media (max-width: 480px) {
  .why-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .cta-actions { flex-direction: column; align-items: center; }
}