/* =========================================
   EdTech KN — Design System
   Colors: Navy #1B2A4A | Teal #00B4C5 | Gold #C9A84C
   Font: Inter, Space Grotesk
   ========================================= */

:root {
  --navy: #1B2A4A;
  --navy-light: #243660;
  --navy-dark: #111D33;
  --teal: #00B4C5;
  --teal-light: #00D4E8;
  --teal-dark: #0094A3;
  --gold: #C9A84C;
  --gold-light: #E0BF6A;
  --gold-dark: #A88A38;
  --white: #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  --success: #22C55E;
  --error: #EF4444;
  --warning: #F59E0B;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.25);
  --shadow-teal: 0 10px 30px rgba(0,180,197,0.3);
  --shadow-gold: 0 10px 30px rgba(201,168,76,0.3);
  --shadow-navy: 0 10px 30px rgba(27,42,74,0.4);

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

/* =========================================
   Reset & Base
   ========================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* =========================================
   Typography
   ========================================= */
h1, h2, h3, h4, h5 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

.text-teal { color: var(--teal); }
.text-gold { color: var(--gold); }
.text-navy { color: var(--navy); }
.text-white { color: var(--white); }
.text-gray { color: var(--gray-500); }

/* =========================================
   Container & Layout
   ========================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-sm { padding: 56px 0; }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 180, 197, 0.1);
  color: var(--teal);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--gray-500);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* =========================================
   Buttons
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s;
  background: rgba(255,255,255,0.1);
}
.btn:hover::before { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, #00D4E8, #009AAB);
  color: var(--white);
  box-shadow: 0 8px 25px rgba(0,180,197,0.45);
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: 0 16px 40px rgba(0,180,197,0.5);
}

.btn-secondary {
  background: linear-gradient(135deg, #E0BF6A, #B8953A);
  color: var(--white);
  box-shadow: 0 8px 25px rgba(201,168,76,0.4);
  letter-spacing: 0.01em;
}
.btn-secondary:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: 0 16px 40px rgba(201,168,76,0.5);
}

.btn-navy {
  background: linear-gradient(135deg, var(--navy), var(--navy-dark));
  color: var(--white);
  box-shadow: var(--shadow-navy);
}
.btn-navy:hover { transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  transform: translateY(-2px);
}

.btn-outline-teal {
  background: transparent;
  color: var(--teal);
  border: 2px solid var(--teal);
}
.btn-outline-teal:hover {
  background: var(--teal);
  color: white;
  transform: translateY(-2px);
}

.btn-lg { padding: 18px 36px; font-size: 1.05rem; border-radius: var(--radius-lg); }
.btn-sm { padding: 10px 20px; font-size: 0.85rem; }

/* =========================================
   Header / Navigation
   ========================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 14px 0;
  transition: var(--transition);
  background: linear-gradient(180deg, rgba(17,29,51,0.8) 0%, transparent 100%);
}

.site-header.scrolled {
  background: rgba(17, 27, 50, 0.98);
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  box-shadow: 0 1px 0 rgba(0,180,197,0.15), 0 4px 30px rgba(0,0,0,0.4);
  padding: 8px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-img {
  height: 52px;
  width: auto;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.2));
}
.logo-img:hover { transform: scale(1.03); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: var(--transition-fast);
}
.nav-link:hover { color: white; background: rgba(255,255,255,0.1); }
.nav-link.active { color: var(--teal); font-weight: 600; }

.btn-verify {
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  color: white !important;
  border-radius: var(--radius-full);
  padding: 9px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0,180,197,0.4);
}
.btn-verify:hover {
  background: linear-gradient(135deg, var(--teal-light), var(--teal));
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,180,197,0.5);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* =========================================
   Hero Section
   ========================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 70% 40%, #1a3d6e 0%, #0d1f3c 45%, #060f1e 100%);
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: floatShape 8s ease-in-out infinite;
}
.hero-shape-1 { width: 600px; height: 600px; background: var(--teal); top: -200px; right: -100px; animation-delay: 0s; }
.hero-shape-2 { width: 400px; height: 400px; background: var(--gold); bottom: -150px; left: -100px; animation-delay: 3s; }
.hero-shape-3 { width: 300px; height: 300px; background: var(--teal-light); top: 50%; left: 40%; animation-delay: 5s; }

@keyframes floatShape {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

/* Grid overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0,180,197,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,197,0.05) 1px, transparent 1px);
  background-size: 50px 50px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(0,180,197,0.15);
  border: 1px solid rgba(0,180,197,0.3);
  border-radius: var(--radius-full);
  color: var(--teal-light);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease forwards;
}

.hero-badge .dot {
  width: 6px; height: 6px;
  background: var(--teal);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  color: white;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--teal-light), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.75);
  max-width: 620px;
  margin-bottom: 40px;
  line-height: 1.7;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 56px;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  animation: fadeInUp 0.6s ease 0.4s both;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  font-weight: 500;
}

.trust-badge-icon {
  font-size: 1.2rem;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 0.75rem;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* =========================================
   Stats Bar
   ========================================= */
.stats-bar {
  background: linear-gradient(135deg, var(--navy), var(--navy-dark));
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: 16px;
  border-right: 1px solid rgba(255,255,255,0.08);
  position: relative;
}
.stat-item:last-child { border-right: none; }

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* =========================================
   Directions / Categories
   ========================================= */
.directions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.direction-card {
  padding: 36px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(0,0,0,0.06);
  background: var(--white);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.direction-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--teal-light));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.direction-card:hover::before { transform: scaleX(1); }

.direction-card:hover {
  transform: translateY(-10px) scale(1.01);
  box-shadow: 0 24px 48px rgba(0,0,0,0.1);
  border-color: rgba(0,180,197,0.15);
}

.direction-icon {
  width: 60px; height: 60px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
}

.direction-card:nth-child(1) .direction-icon { background: rgba(0,180,197,0.1); }
.direction-card:nth-child(2) .direction-icon { background: rgba(201,168,76,0.1); }
.direction-card:nth-child(3) .direction-icon { background: rgba(27,42,74,0.08); }
.direction-card:nth-child(4) .direction-icon { background: rgba(0,180,197,0.1); }

.direction-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}

.direction-list {
  list-style: none;
  padding: 0;
}
.direction-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--gray-600);
  padding: 4px 0;
}
.direction-list li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal);
  flex-shrink: 0;
}

/* =========================================
   Advantages / Features
   ========================================= */
.advantages-section {
  background: radial-gradient(ellipse at 30% 60%, #0e2040 0%, #070e1c 60%, #040a16 100%);
  position: relative;
}
.advantages-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300b4c5' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.advantage-card {
  padding: 36px;
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(4px);
}

.advantage-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--gold));
  transform: scaleX(0);
  transition: transform 0.4s ease;
}
.advantage-card:hover::after { transform: scaleX(1); }

.advantage-card:hover {
  background: rgba(0,180,197,0.08);
  border-color: rgba(0,180,197,0.2);
  transform: translateY(-8px);
  box-shadow: 0 24px 48px rgba(0,0,0,0.4);
}

.advantage-icon {
  width: 64px; height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(0,180,197,0.2), rgba(0,180,197,0.05));
  border: 1px solid rgba(0,180,197,0.2);
}

.advantage-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: white;
  margin-bottom: 12px;
}

.advantage-desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

/* =========================================
   Verify Mini Section
   ========================================= */
.verify-section {
  background: linear-gradient(135deg, #007585, var(--teal), #00c8db);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.verify-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, transparent 100%);
}

.verify-mini-card {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.verify-mini-card h2 { color: white; margin-bottom: 12px; }
.verify-mini-card p { color: rgba(255,255,255,0.8); margin-bottom: 28px; }

.verify-form {
  display: flex;
  gap: 12px;
}

.verify-input {
  flex: 1;
  padding: 14px 20px;
  border-radius: var(--radius);
  border: 2px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.15);
  color: white;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}
.verify-input::placeholder { color: rgba(255,255,255,0.5); }
.verify-input:focus { border-color: white; background: rgba(255,255,255,0.2); }

/* =========================================
   Courses Grid
   ========================================= */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.course-card {
  background: white;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.course-card:hover {
  transform: translateY(-10px) scale(1.005);
  box-shadow: 0 30px 60px rgba(0,0,0,0.14);
  border-color: transparent;
}

.course-card-header {
  padding: 32px;
  position: relative;
  overflow: hidden;
}

.course-icon-wrap {
  width: 70px; height: 70px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: rgba(255,255,255,0.2);
  margin-bottom: 16px;
}

.course-level-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255,255,255,0.2);
  color: white;
  margin-bottom: 12px;
}

.course-card-header h3 {
  color: white;
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.course-subtitle {
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
}

.course-card-body {
  padding: 24px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.course-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--gray-500);
}
.course-meta-item svg { color: var(--teal); flex-shrink: 0; }

.course-desc {
  font-size: 0.88rem;
  color: var(--gray-600);
  line-height: 1.65;
  margin-bottom: 20px;
  flex: 1;
}

.course-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 16px;
}

.course-card-footer {
  display: flex;
  gap: 12px;
  padding: 0 32px 32px;
}

.course-card-footer .btn { flex: 1; }

/* =========================================
   Course Filter
   ========================================= */
.course-filter {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  border: 2px solid var(--gray-200);
  background: white;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--gray-600);
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover { border-color: var(--teal); color: var(--teal); }
.filter-btn.active {
  background: var(--teal);
  border-color: var(--teal);
  color: white;
}

/* =========================================
   Course Detail Page
   ========================================= */
.course-hero {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.course-hero-content {
  position: relative;
  z-index: 1;
}

.course-hero-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

.course-hero-badge {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 6px 14px;
  background: rgba(0,180,197,0.15);
  border: 1px solid rgba(0,180,197,0.3);
  border-radius: var(--radius-full);
  color: var(--teal-light);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.course-hero h1 { color: white; margin-bottom: 8px; }
.course-hero-sub { color: rgba(255,255,255,0.6); font-size: 1.1rem; margin-bottom: 24px; }

.course-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 32px;
}

.course-meta-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
}

/* Enrollment Card */
.enroll-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-xl);
  position: sticky;
  top: 100px;
}

.enroll-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 6px;
}

.enroll-start {
  color: var(--gray-500);
  font-size: 0.88rem;
  margin-bottom: 24px;
}

.enroll-form .form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
  background: var(--gray-50);
}
.form-input:focus { border-color: var(--teal); background: white; box-shadow: 0 0 0 3px rgba(0,180,197,0.1); }

select.form-input { appearance: none; cursor: pointer; }

/* Course Content */
.course-content-section { padding: 80px 0; }

.course-content-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--gray-50);
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: var(--gray-700);
}
.skill-item::before {
  content: '✓';
  color: var(--teal);
  font-weight: 700;
  font-size: 0.85rem;
}

/* Accordion */
.accordion { border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--gray-200); }
.accordion-item:last-child { border-bottom: none; }

.accordion-btn {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: white;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}
.accordion-btn:hover { background: var(--gray-50); }
.accordion-btn.active { color: var(--teal); background: rgba(0,180,197,0.05); }

.accordion-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--gray-500);
  font-size: 1rem;
}
.accordion-btn.active .accordion-icon { transform: rotate(180deg); background: var(--teal); color: white; }

.accordion-body {
  display: none;
  padding: 0 24px 20px;
  background: var(--gray-50);
}
.accordion-body.open { display: block; }

.accordion-topics {
  list-style: none;
  padding-top: 12px;
}
.accordion-topics li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.88rem;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-200);
}
.accordion-topics li:last-child { border-bottom: none; }
.accordion-topics li::before { content: '→'; color: var(--teal); font-weight: 600; }

/* Teacher Card */
.teacher-card {
  padding: 28px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  background: white;
}

.teacher-info {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.teacher-avatar {
  width: 70px; height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--navy));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: white;
  flex-shrink: 0;
}

.teacher-name { font-weight: 700; color: var(--navy); font-size: 1.05rem; }
.teacher-title { color: var(--gray-500); font-size: 0.85rem; }
.teacher-exp { color: var(--teal); font-size: 0.82rem; font-weight: 600; }
.teacher-company {
  margin-top: 12px;
  padding: 10px 16px;
  background: var(--gray-50);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* =========================================
   Verify Page
   ========================================= */
.verify-page {
  min-height: calc(100vh - 200px);
  background: linear-gradient(135deg, var(--gray-50), white);
  padding: 120px 0 80px;
}

.verify-hero {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
}

.verify-shield {
  width: 80px; height: 80px;
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto 24px;
  box-shadow: 0 10px 30px rgba(0,180,197,0.3);
}

.verify-card {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}

.verify-main-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.verify-main-input {
  padding: 18px 24px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  font-size: 1.05rem;
  outline: none;
  transition: var(--transition);
  background: var(--gray-50);
  letter-spacing: 0.05em;
}
.verify-main-input:focus { border-color: var(--teal); background: white; box-shadow: 0 0 0 4px rgba(0,180,197,0.1); }

/* Certificate Result */
.cert-result {
  max-width: 700px;
  margin: 32px auto 0;
  animation: fadeInUp 0.5s ease;
}

.cert-card {
  background: white;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.1);
  border: 1px solid var(--gray-200);
}

.cert-card-header {
  background: linear-gradient(135deg, var(--navy), var(--navy-dark));
  padding: 32px 40px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.cert-logo {
  width: 60px;
  border-radius: var(--radius-sm);
  filter: brightness(0) invert(1);
}

.cert-card-header-text h3 {
  color: white;
  font-size: 1.1rem;
}
.cert-card-header-text p { color: rgba(255,255,255,0.6); font-size: 0.82rem; margin-top: 2px; }

.cert-status-badge {
  margin-left: auto;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.cert-status-valid {
  background: rgba(34,197,94,0.2);
  color: #16a34a;
  border: 1px solid rgba(34,197,94,0.3);
}
.cert-status-invalid {
  background: rgba(239,68,68,0.2);
  color: #dc2626;
  border: 1px solid rgba(239,68,68,0.3);
}

.cert-card-body {
  padding: 40px;
}

.cert-fields {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.cert-field-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.cert-field-value {
  font-size: 1rem;
  color: var(--navy);
  font-weight: 600;
}

.cert-divider {
  height: 1px;
  background: var(--gray-200);
  margin: 24px 0;
}

.cert-actions { display: flex; gap: 12px; }

.cert-error {
  max-width: 600px;
  margin: 32px auto 0;
  padding: 28px 32px;
  background: rgba(239,68,68,0.05);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-xl);
  text-align: center;
  animation: fadeInUp 0.5s ease;
}

.cert-error-icon { font-size: 2.5rem; margin-bottom: 12px; }
.cert-error h3 { color: #dc2626; margin-bottom: 8px; }
.cert-error p { color: var(--gray-500); font-size: 0.9rem; }

/* =========================================
   About Page
   ========================================= */
.about-hero {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  padding: 140px 0 80px;
  text-align: center;
  color: white;
}

.about-hero h1 { color: white; }
.about-hero p { color: rgba(255,255,255,0.7); margin-top: 16px; max-width: 600px; margin-left: auto; margin-right: auto; }

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.team-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 32px;
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.team-avatar {
  width: 90px; height: 90px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--navy));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto 20px;
}

.team-name { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.team-role { color: var(--teal); font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; }
.team-bio { font-size: 0.85rem; color: var(--gray-500); line-height: 1.6; }

/* Values */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-card {
  padding: 32px;
  border-radius: var(--radius-xl);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  text-align: center;
}

.value-icon { font-size: 2.5rem; margin-bottom: 16px; }
.value-title { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.value-desc { font-size: 0.88rem; color: var(--gray-500); line-height: 1.65; }

/* =========================================
   B2B Page
   ========================================= */
.b2b-hero {
  background: linear-gradient(135deg, #0d2844, var(--navy));
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.b2b-services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.b2b-card {
  padding: 36px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  background: white;
  transition: var(--transition);
}
.b2b-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--teal); }

.b2b-card-icon { font-size: 2.5rem; margin-bottom: 20px; }
.b2b-card-title { font-size: 1.1rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; }
.b2b-card-desc { font-size: 0.88rem; color: var(--gray-500); line-height: 1.65; }

/* B2B Form */
.b2b-form-section {
  background: linear-gradient(135deg, var(--gray-50), white);
}

.b2b-form-card {
  max-width: 700px;
  margin: 0 auto;
  background: white;
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}

.b2b-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

/* =========================================
   Contacts Page
   ========================================= */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: var(--transition);
}
.contact-info-card:hover { border-color: var(--teal); box-shadow: 0 8px 24px rgba(0,180,197,0.1); }

.contact-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.contact-label { font-size: 0.78rem; color: var(--gray-400); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
.contact-value { font-size: 1rem; font-weight: 600; color: var(--navy); }
.contact-sub { font-size: 0.82rem; color: var(--gray-500); margin-top: 2px; }

.contact-form-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}

/* =========================================
   Admin Panel
   ========================================= */
.admin-body {
  background: var(--gray-100);
  min-height: 100vh;
  font-family: 'Inter', sans-serif;
}

.admin-header {
  background: var(--navy);
  padding: 16px 0;
  box-shadow: 0 2px 16px rgba(0,0,0,0.3);
}

.admin-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
  font-weight: 700;
  font-size: 1rem;
}

.admin-logo img { height: 36px; border-radius: 6px; }

.admin-nav { display: flex; gap: 8px; }
.admin-nav-link {
  padding: 8px 16px;
  border-radius: var(--radius);
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-fast);
}
.admin-nav-link:hover { color: white; background: rgba(255,255,255,0.1); }
.admin-nav-link.active { color: white; background: var(--teal); }

.admin-main { padding: 32px 0; }

.admin-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.admin-page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}
.admin-table td {
  padding: 14px 20px;
  font-size: 0.88rem;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--gray-50); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}
.badge-success { background: rgba(34,197,94,0.1); color: #16a34a; }
.badge-warning { background: rgba(245,158,11,0.1); color: #d97706; }
.badge-error { background: rgba(239,68,68,0.1); color: #dc2626; }

.admin-form { padding: 32px; }
.admin-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.admin-form-group { margin-bottom: 16px; }
.admin-form-group.full { grid-column: 1 / -1; }

.admin-actions { display: flex; gap: 8px; }
.btn-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}
.btn-icon-danger { background: rgba(239,68,68,0.1); color: #dc2626; }
.btn-icon-danger:hover { background: #dc2626; color: white; }
.btn-icon-primary { background: rgba(0,180,197,0.1); color: var(--teal); }
.btn-icon-primary:hover { background: var(--teal); color: white; }

/* Alert / Flash */
.alert {
  padding: 16px 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 12px;
}
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: #15803d; }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #dc2626; }
.alert-info { background: rgba(0,180,197,0.1); border: 1px solid rgba(0,180,197,0.3); color: var(--teal-dark); }

/* =========================================
   Login Page
   ========================================= */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  padding: 20px;
}

.login-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 48px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
  text-align: center;
}

.login-logo { height: 60px; margin: 0 auto 24px; border-radius: var(--radius-sm); }
.login-title { font-size: 1.5rem; font-weight: 800; color: var(--navy); margin-bottom: 6px; }
.login-sub { color: var(--gray-500); font-size: 0.88rem; margin-bottom: 32px; }

/* =========================================
   Utility
   ========================================= */
.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }

/* Gradient divider */
.section-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--teal), var(--gold), transparent);
  margin: 0;
}

/* Page header for inner pages */
.page-hero {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  padding: 130px 0 60px;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0,180,197,0.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(0,180,197,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
}

.page-hero h1 { color: white; position: relative; }
.page-hero p { color: rgba(255,255,255,0.65); margin-top: 14px; font-size: 1.05rem; position: relative; }

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 1024px) {
  .course-hero-grid,
  .course-content-grid { grid-template-columns: 1fr; }
  .enroll-card { position: static; }
  .contacts-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(17, 29, 51, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 999;
  }
  .main-nav.open { display: flex; }
  .main-nav .nav-link { font-size: 1.2rem; padding: 12px 24px; }
  .hamburger { display: flex; z-index: 1000; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .courses-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-trust-badges { flex-direction: column; }
  .verify-form { flex-direction: column; }
  .cert-fields { grid-template-columns: 1fr; }
  .admin-form-grid { grid-template-columns: 1fr; }
  .b2b-form-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }

  .section { padding: 56px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .cert-actions { flex-direction: column; }
  .b2b-form-card { padding: 28px; }
  .enroll-card { padding: 24px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .course-filter { gap: 8px; }
  .admin-table { font-size: 0.8rem; }
  .admin-table th, .admin-table td { padding: 10px 12px; }
}

/* =========================================
   Footer
   ========================================= */
.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.7);
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo { height: 44px; border-radius: var(--radius-sm); margin-bottom: 12px; }
.footer-tagline { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--teal); font-weight: 600; margin-bottom: 14px; }
.footer-desc { font-size: 0.85rem; line-height: 1.7; color: rgba(255,255,255,0.5); margin-bottom: 20px; }

.footer-social { display: flex; gap: 10px; }
.social-link {
  width: 38px; height: 38px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: var(--transition-fast);
}
.social-link:hover { background: var(--teal); color: white; transform: translateY(-2px); }

.footer-col-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.footer-links, .footer-contacts { display: flex; flex-direction: column; gap: 10px; }
.footer-links li a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
}
.footer-links li a:hover { color: var(--teal); }

.footer-contacts li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}
.footer-contacts li svg { margin-top: 2px; flex-shrink: 0; color: var(--teal); }
.footer-contacts li a { color: rgba(255,255,255,0.5); transition: color 0.2s; }
.footer-contacts li a:hover { color: var(--teal); }

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-legal { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.footer-legal span { font-size: 0.8rem; color: rgba(255,255,255,0.35); }
.footer-bin { padding: 2px 10px; background: rgba(255,255,255,0.06); border-radius: 4px; }
.footer-legal-links { display: flex; gap: 16px; }
.footer-legal-links a { font-size: 0.78rem; color: rgba(255,255,255,0.35); transition: color 0.2s; }
.footer-legal-links a:hover { color: rgba(255,255,255,0.6); }