/* ============================================================
   FORTEX LEARNING — Design System v2
   fortexlearning.com
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Variables ── */
:root {
  /* Backgrounds */
  --bg-void:       #f3f0fa;
  --bg-primary:    #ffffff;
  --bg-secondary:  #faf5ff;
  --bg-card:       #ffffff;
  --bg-card-hover: #f5edff;
  --bg-input:      #faf5ff;

  /* Brand (purple) */
  --blue:          #7c3aed;
  --blue-dim:      #6d28d9;
  --blue-mid:      #9461f0;
  --blue-glow:     rgba(124, 58, 237, 0.1);
  --navy:          #2e1065;
  --navy-mid:      #4c1d95;
  --navy-light:    #5b21b6;
  --indigo:        #4c1d95;
  --green:         #16a34a;
  --green-light:   #dcfce7;
  --orange:        #ea580c;
  --red:           #dc2626;
  --red-light:     #fee2e2;
  --yellow:        #d97706;
  --yellow-light:  #fef3c7;

  /* Text */
  --text-primary:  #1e1330;
  --text-secondary:#5b5370;
  --text-muted:    #9c93b0;
  --text-accent:   #7c3aed;

  /* Borders */
  --border:        #ead9ff;
  --border-strong: #d6bdfb;
  --border-card:   #f3eaff;

  /* Tier colours */
  --tier-beginner:     #16a34a;
  --tier-intermediate: #d97706;
  --tier-advanced:     #ea580c;
  --tier-expert:       #dc2626;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body:    'Plus Jakarta Sans', system-ui, sans-serif;

  /* Sizing */
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.05);
  --shadow-lg:   0 10px 40px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.05);
  --shadow-blue: 0 4px 20px rgba(124,58,237,0.2);

  /* Transitions */
  --transition: 0.18s ease;
  --transition-slow: 0.32s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-dim); }
button, input, textarea, select { font-family: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* ============================================================
   LAYOUT
   ============================================================ */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 800px; margin: 0 auto; padding: 0 24px; }

.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }
.section-alt { background: var(--bg-secondary); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-gap { display: flex; align-items: center; gap: 12px; }
.flex-col { display: flex; flex-direction: column; }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
.heading-xl {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--navy);
}
.heading-lg {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--navy);
}
.heading-md {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
}
.heading-sm {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.text-gradient {
  background: linear-gradient(135deg, var(--blue) 0%, var(--indigo) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-blue   { color: var(--blue); }
.text-navy   { color: var(--navy); }
.text-muted  { color: var(--text-secondary); }
.text-center { text-align: center; }
.text-right  { text-align: right; }

.label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition-slow);
}
.navbar.scrolled {
  box-shadow: var(--shadow-md);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--blue), var(--indigo));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(124,58,237,0.3);
}
.nav-logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--navy);
  letter-spacing: -0.01em;
}
.nav-logo-text span { color: var(--blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--blue);
  background: var(--blue-glow);
}

.nav-actions { display: flex; align-items: center; gap: 10px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 12px 24px 20px;
  z-index: 999;
  box-shadow: var(--shadow-lg);
}
.mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a { display: block; padding: 10px 12px; border-radius: var(--radius-sm); font-weight: 500; color: var(--text-secondary); }
.mobile-nav a:hover { background: var(--bg-secondary); color: var(--blue); }
.mobile-nav-actions { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 1.5px solid transparent;
  white-space: nowrap;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primary {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
  box-shadow: 0 2px 8px rgba(124,58,237,0.25);
}
.btn-primary:hover:not(:disabled) {
  background: var(--blue-dim);
  border-color: var(--blue-dim);
  color: #fff;
  box-shadow: 0 4px 16px rgba(124,58,237,0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--blue);
  border-color: var(--blue);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--blue-glow);
  color: var(--blue-dim);
}

.btn-navy {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
  box-shadow: 0 2px 8px rgba(26,26,46,0.2);
}
.btn-navy:hover:not(:disabled) {
  background: var(--navy-mid);
  color: #fff;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-ghost:hover { color: var(--text-primary); border-color: var(--border-strong); background: var(--bg-secondary); }

.btn-danger {
  background: var(--red-light);
  color: var(--red);
  border-color: #fca5a5;
}
.btn-danger:hover { background: #fecaca; }

/* alias for old btn-purple references */
.btn-purple {
  background: var(--indigo);
  color: #fff;
  border-color: var(--indigo);
  box-shadow: 0 2px 8px rgba(124,58,237,0.25);
}
.btn-purple:hover:not(:disabled) {
  background: #4338ca;
  color: #fff;
  transform: translateY(-1px);
}

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 13px 30px; font-size: 1rem; }
.btn-xl { padding: 16px 40px; font-size: 1.05rem; border-radius: var(--radius-md); }
.btn-full { width: 100%; }

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition-slow);
  box-shadow: var(--shadow-sm);
}
.card:hover {
  border-color: #c7d6ff;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card-glow {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-blue);
}

/* ============================================================
   COURSE CARDS
   ============================================================ */
.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}
.course-card:hover {
  border-color: #c7d6ff;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.course-card-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #f0e6ff, #e9d8fd);
  position: relative;
  overflow: hidden;
}
.course-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
.course-card-thumb-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  color: var(--blue-mid);
  opacity: 0.5;
}
.course-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.course-card-meta { display: flex; align-items: center; justify-content: space-between; }
.course-card-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--navy);
  letter-spacing: -0.01em;
}
.course-card-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.55; flex: 1; }
.course-card-stats {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-top: 12px;
  border-top: 1px solid var(--border-card);
}
.course-card-stat { display: flex; align-items: center; gap: 4px; }
.course-card-footer { padding: 16px 20px; border-top: 1px solid var(--border-card); display: flex; justify-content: space-between; align-items: center; background: var(--bg-secondary); }
.course-price { font-family: var(--font-heading); font-size: 1.25rem; font-weight: 800; color: var(--navy); letter-spacing: -0.02em; }

/* ============================================================
   TIER BADGES
   ============================================================ */
.tier-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.badge-beginner     { background: #dcfce7; color: var(--tier-beginner);     border: 1px solid #bbf7d0; }
.badge-intermediate { background: #fef3c7; color: var(--tier-intermediate); border: 1px solid #fde68a; }
.badge-advanced     { background: #ffedd5; color: var(--tier-advanced);     border: 1px solid #fed7aa; }
.badge-expert       { background: #fee2e2; color: var(--tier-expert);       border: 1px solid #fca5a5; }
.badge-default      { background: #f5edff; color: var(--blue);              border: 1px solid #ddc4fb; }

/* ============================================================
   FORMS
   ============================================================ */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.form-control {
  background: var(--bg-input);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  padding: 10px 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-control:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
  background: #fff;
}
.form-control::placeholder { color: var(--text-muted); }
.form-control.error { border-color: var(--red); }

textarea.form-control { resize: vertical; min-height: 120px; }
select.form-control { cursor: pointer; }

.form-hint { font-size: 0.75rem; color: var(--text-muted); }
.form-error { font-size: 0.75rem; color: var(--red); }

.input-group { position: relative; }
.input-group .form-control { padding-left: 44px; }
.input-group-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* ============================================================
   ALERTS
   ============================================================ */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-error   { background: var(--red-light);    border: 1px solid #fca5a5;  color: #991b1b; }
.alert-success { background: var(--green-light);  border: 1px solid #86efac;  color: #14532d; }
.alert-info    { background: #f5edff;              border: 1px solid #ddc4fb;  color: #5b21b6; }
.alert-warn    { background: var(--yellow-light);  border: 1px solid #fde68a;  color: #92400e; }

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.progress-wrap { background: var(--border); border-radius: 999px; overflow: hidden; height: 6px; }
.progress-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--indigo));
  transition: width 0.5s ease;
}
.progress-label { font-size: 0.75rem; color: var(--text-secondary); margin-top: 4px; display: flex; justify-content: space-between; }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
  background: #ffffff;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
/* Geometric hero background */
.hero-bg::before {
  content: '';
  position: absolute;
  top: -200px; right: -100px;
  width: 700px; height: 700px;
  background: radial-gradient(circle at center, rgba(124,58,237,0.06) 0%, transparent 65%);
  border-radius: 50%;
}
.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle at center, rgba(124,58,237,0.05) 0%, transparent 65%);
  border-radius: 50%;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}
/* Grid pattern overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124,58,237,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,58,237,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #f5edff;
  border: 1px solid #ddc4fb;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-eyebrow-dot {
  width: 6px; height: 6px;
  background: var(--blue);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.5); }
}

.hero-title { margin-bottom: 24px; color: var(--navy); }
.hero-title .highlight {
  position: relative;
  color: var(--blue);
}
.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 580px;
  font-weight: 400;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; margin-bottom: 64px; }

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.hero-stat-num {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
}
.hero-stat-num span { color: var(--blue); }
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; font-weight: 500; }

/* typing cursor */
.type-cursor::after {
  content: '|';
  color: var(--blue);
  animation: blink 1s infinite;
  margin-left: 2px;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.section-header { text-align: center; margin-bottom: 64px; }
.section-header .label { margin-bottom: 12px; display: block; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { color: var(--text-secondary); max-width: 560px; margin: 0 auto; font-size: 1.05rem; }

/* ============================================================
   LEARNING PATH / TIERS
   ============================================================ */
.path-track {
  position: relative;
  padding: 28px 28px 28px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-slow);
  box-shadow: var(--shadow-sm);
}
.path-track:hover { border-color: #c7d6ff; box-shadow: var(--shadow-md); }
.path-track::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.path-track.beginner::before     { background: var(--tier-beginner); }
.path-track.intermediate::before { background: var(--tier-intermediate); }
.path-track.advanced::before     { background: var(--tier-advanced); }
.path-track.expert::before       { background: var(--tier-expert); }

.path-tier {
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.path-track.beginner     .path-tier { color: var(--tier-beginner); }
.path-track.intermediate .path-tier { color: var(--tier-intermediate); }
.path-track.advanced     .path-tier { color: var(--tier-advanced); }
.path-track.expert       .path-tier { color: var(--tier-expert); }

.path-courses { display: flex; flex-direction: column; gap: 6px; margin-top: 14px; }
.path-course-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  border: 1px solid var(--border-card);
}
.path-course-item:hover { background: #f5edff; color: var(--blue); border-color: #ddc4fb; }
.path-course-item svg { flex-shrink: 0; color: var(--text-muted); }

/* ============================================================
   CERTIFICATE VERIFY (public page)
   ============================================================ */
.verify-box {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.cert-display {
  position: relative;
  background: linear-gradient(145deg, #faf5ff 0%, #f0e6ff 50%, #f5edff 100%);
  border: 1.5px solid #c7d6ff;
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  text-align: center;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(124,58,237,0.1);
}
.cert-display::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='%237c3aed' 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");
  pointer-events: none;
}
.cert-logo {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--blue);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.cert-badge {
  width: 80px; height: 80px;
  background: linear-gradient(135deg, var(--blue), var(--indigo));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 8px 32px rgba(124,58,237,0.3);
}
.cert-presents { font-size: 0.78rem; color: var(--text-muted); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 8px; }
.cert-name { font-family: var(--font-heading); font-size: 2rem; font-weight: 800; color: var(--navy); margin-bottom: 16px; letter-spacing: -0.02em; }
.cert-completed { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 6px; }
.cert-course { font-family: var(--font-heading); font-size: 1.2rem; color: var(--blue); margin-bottom: 28px; font-weight: 700; letter-spacing: -0.01em; }
.cert-issued { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 24px; }
.cert-id-box {
  display: inline-block;
  background: #f5edff;
  border: 1.5px solid #ddc4fb;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--blue);
  letter-spacing: 0.1em;
  font-weight: 700;
}
.cert-valid {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--green-light);
  border: 1px solid #86efac;
  border-radius: 999px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 700;
  margin-top: 24px;
}

/* ============================================================
   DASHBOARD LAYOUT
   ============================================================ */
.dash-layout {
  display: block;
  min-height: 100vh;
  padding-top: 68px;
}

.sidebar {
  background: #fff;
  border-right: 1px solid var(--border);
  padding: 24px 0;
  position: fixed;
  top: 68px; left: 0;
  height: calc(100vh - 68px);
  width: 260px;
  overflow-y: auto;
  z-index: 100;
  transition: transform 0.3s ease;
}
.sidebar-section { padding: 0 12px 12px; }
.sidebar-section-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 12px 8px 8px;
}
.sidebar-nav { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.sidebar-nav a:hover, .sidebar-nav a.active {
  background: #f5edff;
  color: var(--blue);
}
.sidebar-nav a.active { font-weight: 600; }
.sidebar-nav a svg { flex-shrink: 0; width: 18px; height: 18px; }
.sidebar-nav .badge-count {
  margin-left: auto;
  background: var(--blue);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
}

.dash-content { margin-left: 260px; padding: 32px; background: var(--bg-secondary); min-height: calc(100vh - 68px); }
.dash-header { margin-bottom: 28px; }
.dash-header h1 { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800; color: var(--navy); letter-spacing: -0.02em; }
.dash-header p { color: var(--text-secondary); margin-top: 4px; font-size: 0.9rem; }

/* stat cards */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-md); }
.stat-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.stat-icon.cyan   { background: #f5edff; color: var(--blue); }
.stat-icon.purple { background: #f0e6ff; color: var(--indigo); }
.stat-icon.green  { background: var(--green-light); color: var(--green); }
.stat-icon.orange { background: #ffedd5; color: var(--orange); }
.stat-value { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 800; color: var(--navy); letter-spacing: -0.02em; }
.stat-label { font-size: 0.78rem; color: var(--text-secondary); margin-top: 2px; font-weight: 500; }

/* tables */
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--border); }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; background: #fff; }
.data-table th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.data-table td { padding: 14px 16px; border-bottom: 1px solid var(--border-card); color: var(--text-primary); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: #faf5ff; }

/* sessions */
.session-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}
.session-item:hover { border-color: #c7d6ff; box-shadow: var(--shadow-md); }
.session-date-box {
  background: #f5edff;
  border: 1px solid #ddc4fb;
  border-radius: var(--radius-sm);
  width: 56px; flex-shrink: 0;
  text-align: center;
  padding: 8px 4px;
}
.session-date-month { font-size: 0.65rem; text-transform: uppercase; color: var(--blue); font-weight: 700; letter-spacing: 0.08em; }
.session-date-day   { font-family: var(--font-heading); font-size: 1.4rem; font-weight: 800; color: var(--navy); line-height: 1; }
.session-info { flex: 1; }
.session-title { font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; color: var(--navy); }
.session-meta  { font-size: 0.78rem; color: var(--text-muted); display: flex; gap: 12px; flex-wrap: wrap; }
.session-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: #fee2e2;
  border: 1px solid #fca5a5;
  border-radius: 999px;
  color: var(--red);
  font-size: 0.68rem;
  font-weight: 700;
  animation: pulse-live 2s infinite;
}
@keyframes pulse-live {
  0%, 100% { box-shadow: 0 0 0 0 rgba(220,38,38,0.25); }
  50%       { box-shadow: 0 0 0 4px rgba(220,38,38,0); }
}

/* lesson list */
.lesson-list { display: flex; flex-direction: column; gap: 4px; }
.lesson-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
}
.lesson-item:hover { background: var(--bg-secondary); }
.lesson-item.active { background: #f5edff; }
.lesson-check {
  width: 20px; height: 20px;
  border: 2px solid var(--border-strong);
  border-radius: 50%;
  flex-shrink: 0;
  transition: all var(--transition);
}
.lesson-check.done {
  background: var(--green);
  border-color: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lesson-title-text { font-size: 0.85rem; color: var(--text-secondary); flex: 1; font-weight: 500; }
.lesson-item.active .lesson-title-text { color: var(--blue); font-weight: 600; }
.lesson-duration { font-size: 0.75rem; color: var(--text-muted); }

/* video player */
.video-wrapper {
  aspect-ratio: 16/9;
  background: var(--navy);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
}
.video-wrapper iframe { width: 100%; height: 100%; border: none; }

/* ============================================================
   LEARN LAYOUT (two-column)
   ============================================================ */
.learn-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: calc(100vh - 68px);
  margin-top: 68px;
}
.learn-sidebar {
  background: #fff;
  border-right: 1px solid var(--border);
  position: sticky;
  top: 68px;
  height: calc(100vh - 68px);
  overflow-y: auto;
  padding: 20px 0;
}
.learn-main { padding: 32px; background: var(--bg-secondary); }

/* ============================================================
   FEATURES SECTION
   ============================================================ */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.feature-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition-slow);
  box-shadow: var(--shadow-sm);
}
.feature-card:hover { border-color: #c7d6ff; box-shadow: var(--shadow-md); transform: translateY(-3px); }
.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: #f5edff;
}
.feature-title { font-family: var(--font-heading); font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--navy); letter-spacing: -0.01em; }
.feature-desc  { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  background: var(--navy);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -200px; right: -100px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 65%);
  border-radius: 50%;
}
.cta-section .section-header h2 { color: #fff; }
.cta-section .section-header p { color: rgba(255,255,255,0.65); }
.cta-section .label { color: rgba(255,255,255,0.5); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand-desc { font-size: 0.875rem; color: rgba(255,255,255,0.5); line-height: 1.7; margin-top: 14px; }
.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  margin-bottom: 16px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 0.875rem; color: rgba(255,255,255,0.5); transition: color var(--transition); }
.footer-links a:hover { color: rgba(255,255,255,0.9); }
.footer-bottom { padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.08); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-copy { font-size: 0.78rem; color: rgba(255,255,255,0.35); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 0.78rem; color: rgba(255,255,255,0.35); }
.footer-legal a:hover { color: rgba(255,255,255,0.7); }
.footer .nav-logo-text { color: #fff; }

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #f0f4ff 0%, #fff 100%);
  border-bottom: 1px solid var(--border);
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
}

/* ============================================================
   AUTH PAGES
   ============================================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg-secondary);
  position: relative;
}
.auth-page::before {
  content: '';
  position: absolute;
  width: 800px; height: 800px;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(124,58,237,0.04) 0%, transparent 65%);
  pointer-events: none;
}
.auth-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-lg);
}
.auth-box h1 { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; color: var(--navy); letter-spacing: -0.02em; }
.auth-box .auth-sub { font-size: 0.875rem; color: var(--text-secondary); margin-bottom: 32px; }
.auth-form { display: flex; flex-direction: column; gap: 18px; }
.auth-divider { text-align: center; color: var(--text-muted); font-size: 0.8rem; position: relative; }
.auth-divider::before, .auth-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: calc(50% - 20px);
  height: 1px;
  background: var(--border);
}
.auth-divider::before { left: 0; }
.auth-divider::after  { right: 0; }

/* ============================================================
   UTILITY
   ============================================================ */
.mt-0  { margin-top: 0; }
.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; }
.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; }
.gap-8  { gap: 8px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.w-full { width: 100%; }

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

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.avatar {
  border-radius: 50%;
  object-fit: cover;
  background: linear-gradient(135deg, var(--blue), var(--indigo));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.avatar-sm { width: 32px; height: 32px; font-size: 0.7rem; }
.avatar-md { width: 44px; height: 44px; font-size: 0.9rem; }
.avatar-lg { width: 64px; height: 64px; font-size: 1.2rem; }
.avatar-xl { width: 96px; height: 96px; font-size: 1.8rem; }

/* toast notifications */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 260px;
  max-width: 380px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  animation: slide-in 0.3s ease, fade-out 0.4s ease 3s forwards;
}
.toast-success { background: #fff; border: 1px solid #86efac; color: #14532d; }
.toast-error   { background: #fff; border: 1px solid #fca5a5; color: #991b1b; }
.toast-info    { background: #fff; border: 1px solid #ddc4fb; color: #5b21b6; }
@keyframes slide-in   { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fade-out   { from { opacity: 1; } to { opacity: 0; pointer-events: none; } }

/* scroll reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.revealed { opacity: 1; transform: translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .dash-layout { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    left: -260px;
    z-index: 200;
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { left: 0; }
  .dash-content { margin-left: 0; }
  .learn-layout { grid-template-columns: 1fr; }
  .learn-sidebar { position: static; height: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 70px 0; }
  .hero { padding: 100px 0 60px; }
  .hero-stats { gap: 24px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .auth-box { padding: 32px 24px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .btn-xl { padding: 14px 28px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { text-align: center; }
  .cert-display { padding: 40px 24px; }
  .cert-name { font-size: 1.5rem; }
  .dash-content { padding: 20px 16px; }
}

@media print {
  .navbar, .hero-actions, .verify-actions, footer, .btn { display: none !important; }
  #cert-printable { box-shadow: none !important; border: 1px solid #ccc !important; }
}