/* ═══════════════════════════════════════════════════════
   ADKOWFX — Premium Design System v3.0
   Inspired by Linear, Vercel, Stripe, dugsiiye.com
   Dark theme · HSL Properties · Inter font · Modern UI
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ─── THEME VARIABLES (DARK — default) ─── */
:root, [data-theme="dark"] {
  --background: 0 0% 0%;
  --foreground: 0 0% 98%;
  --card: 0 0% 6%;
  --card-foreground: 0 0% 98%;
  --popover: 0 0% 6%;
  --popover-foreground: 0 0% 98%;
  --primary: 0 72% 44%;
  --primary-foreground: 0 0% 0%;
  --secondary: 0 0% 10%;
  --secondary-foreground: 0 0% 98%;
  --muted: 0 0% 14%;
  --muted-foreground: 0 0% 55%;
  --accent: 0 28% 18%;
  --accent-foreground: 48 90% 70%;
  --destructive: 0 62.8% 50%;
  --destructive-foreground: 0 0% 100%;
  --border: 0 0% 15%;
  --input: 0 0% 15%;
  --ring: 0 72% 44%;
  --radius: 0.75rem;
  color-scheme: dark;
}

/* ─── LIGHT THEME ─── */
[data-theme="light"] {
  --background: 0 0% 100%;
  --foreground: 0 0% 5%;
  --card: 0 0% 97%;
  --card-foreground: 0 0% 5%;
  --popover: 0 0% 97%;
  --popover-foreground: 0 0% 5%;
  --primary: 0 66% 40%;
  --primary-foreground: 0 0% 100%;
  --secondary: 0 0% 93%;
  --secondary-foreground: 0 0% 5%;
  --muted: 0 0% 90%;
  --muted-foreground: 0 0% 40%;
  --accent: 0 30% 94%;
  --accent-foreground: 0 66% 34%;
  --destructive: 0 62.8% 50%;
  --destructive-foreground: 0 0% 100%;
  --border: 0 0% 88%;
  --input: 0 0% 88%;
  --ring: 0 66% 40%;
  --radius: 0.75rem;
  color-scheme: light;
}

/* Light theme overrides for specific text colors */
[data-theme="light"] .text-white { color: hsl(0 0% 5%) !important; }
[data-theme="light"] .text-gradient {
  background: linear-gradient(135deg, hsl(48 92% 38%), hsl(0 66% 40%), hsl(48 92% 38%));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
[data-theme="light"] .hamburger span { background: hsl(0 0% 10%); }
[data-theme="light"] .orb-primary { background: hsl(var(--primary) / 0.06); }
[data-theme="light"] .orb-purple { background: hsl(270 80% 60% / 0.04); }
[data-theme="light"] .orb-blue { background: hsl(210 90% 55% / 0.03); }
[data-theme="light"] .hero-visual-card { box-shadow: 0 25px 80px -12px hsl(0 0% 0% / 0.1); }
[data-theme="light"] .card-hover-lift:hover { box-shadow: 0 20px 60px hsl(0 0% 0% / 0.08), 0 0 0 1px hsl(var(--primary) / 0.2); }
[data-theme="light"] .glow-primary { box-shadow: 0 0 60px hsl(var(--primary) / 0.06); }
[data-theme="light"] .nav-scrolled {
  background: hsl(0 0% 100% / 0.88) !important;
  border-bottom-color: hsl(0 0% 0% / 0.08) !important;
  box-shadow: 0 1px 20px hsl(0 0% 0% / 0.06), 0 1px 3px hsl(0 0% 0% / 0.04) !important;
}
[data-theme="light"] .glass { background: hsl(0 0% 100% / 0.7); }

/* Light theme: Course cards — deeper contrast */
[data-theme="light"] .card-base {
  background: hsl(0 0% 100%);
  border-color: hsl(0 0% 85%);
  box-shadow: 0 2px 12px hsl(0 0% 0% / 0.06), 0 1px 3px hsl(0 0% 0% / 0.04);
}
[data-theme="light"] .card-base:hover {
  border-color: hsl(var(--primary) / 0.35);
  box-shadow: 0 8px 30px hsl(0 0% 0% / 0.1), 0 0 0 1px hsl(var(--primary) / 0.15);
}
[data-theme="light"] .course-number {
  background: hsl(0 0% 100% / 0.95);
  border-color: hsl(0 0% 80%);
  color: hsl(var(--primary));
}
[data-theme="light"] .level-badge { font-weight: 700; }
[data-theme="light"] .level-all { background: hsl(217 91% 60% / 0.1); color: hsl(217 80% 45%); }
[data-theme="light"] .level-intermediate { background: hsl(36 100% 50% / 0.1); color: hsl(36 90% 35%); }
[data-theme="light"] .level-beginner { background: hsl(142 76% 36% / 0.1); color: hsl(142 70% 30%); }

/* Light theme: Course detail modal — proper depth */
[data-theme="light"] .course-modal-overlay {
  background: hsl(0 0% 0% / 0.5);
}
[data-theme="light"] .course-modal-content {
  background: hsl(0 0% 100%);
  border-color: hsl(0 0% 85%);
  box-shadow: 0 40px 100px hsl(0 0% 0% / 0.25), 0 0 0 1px hsl(0 0% 0% / 0.05);
}
[data-theme="light"] .course-modal-close {
  background: hsl(0 0% 100% / 0.9);
  border-color: hsl(0 0% 82%);
  color: hsl(0 0% 25%);
}
[data-theme="light"] .course-modal-close:hover {
  background: hsl(0 0% 96%);
  color: hsl(0 0% 5%);
}
[data-theme="light"] .lesson-item:hover {
  background: hsl(0 0% 96%);
}
[data-theme="light"] .lesson-item .lesson-num {
  background: hsl(var(--primary) / 0.08);
  border-color: hsl(var(--primary) / 0.2);
  color: hsl(36 90% 35%);
}

/* Light theme: benefit & tool cards */
[data-theme="light"] .benefit-card {
  background: hsl(0 0% 100%);
  border-color: hsl(0 0% 85%);
  box-shadow: 0 2px 12px hsl(0 0% 0% / 0.05);
}
[data-theme="light"] .benefit-card:hover {
  box-shadow: 0 12px 40px hsl(0 0% 0% / 0.08);
}
[data-theme="light"] .tool-icon-card {
  background: hsl(0 0% 100%);
  border-color: hsl(0 0% 85%);
  box-shadow: 0 2px 8px hsl(0 0% 0% / 0.04);
}
[data-theme="light"] .tool-icon-card:hover {
  box-shadow: 0 12px 36px hsl(0 0% 0% / 0.08);
}

/* Light theme: step cards & badges */
[data-theme="light"] .step-number {
  background: hsl(var(--primary) / 0.08);
  border-color: hsl(var(--primary) / 0.2);
  color: hsl(36 90% 35%);
}
[data-theme="light"] .badge-primary {
  background: hsl(var(--primary) / 0.06);
  border-color: hsl(var(--primary) / 0.15);
  color: hsl(36 90% 35%);
}
[data-theme="light"] .badge-ghost {
  background: hsl(0 0% 94%);
  border-color: hsl(0 0% 85%);
  color: hsl(0 0% 30%);
}

/* Light theme: card-glow (stats bar & CTA) */
[data-theme="light"] .card-glow {
  background: hsl(0 0% 100%);
}
[data-theme="light"] .card-glow::before {
  background: linear-gradient(135deg, hsl(var(--primary) / 0.25), transparent 40%, transparent 60%, hsl(var(--primary) / 0.12));
}

/* Theme toggle button */
.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem;
  border-radius: 0.5rem; border: 1px solid hsl(var(--border));
  background: hsl(var(--secondary));
  color: hsl(var(--muted-foreground));
  cursor: pointer; transition: all 0.25s;
}
.theme-toggle:hover { color: hsl(var(--primary)); border-color: hsl(var(--primary) / 0.3); }
.theme-toggle .icon-sun, .theme-toggle .icon-moon { width: 1.125rem; height: 1.125rem; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  overflow-x: hidden;
  width: 100%;
}
html {
  scroll-behavior: smooth;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  min-height: 100vh;
  line-height: 1.6;
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: hsl(var(--primary) / 0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: hsl(var(--primary) / 0.5); }

/* ─── TYPOGRAPHY ─── */
.text-gradient {
  background: linear-gradient(135deg, hsl(48 92% 58%), hsl(var(--primary)), hsl(48 92% 58%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-wordmark {
  font-size: clamp(1.55rem, 2vw, 1.95rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

.footer-wordmark {
  font-size: clamp(5.5rem, 18vw, 14rem);
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.text-gradient-subtle {
  background: linear-gradient(135deg, hsl(0 0% 100%), hsl(0 0% 70%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── BACKGROUND EFFECTS ─── */
.grid-bg {
  background-image:
    linear-gradient(to right, hsl(var(--border) / 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, hsl(var(--border) / 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
}

.noise-bg {
  position: relative;
}
.noise-bg::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.02'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0;
}

/* Gradient Orbs */
.orb {
  position: absolute; border-radius: 50%; filter: blur(100px); pointer-events: none;
  animation: orbFloat 8s ease-in-out infinite;
}
.orb-primary { background: hsl(var(--primary) / 0.12); }
.orb-purple { background: hsl(270 80% 60% / 0.08); }
.orb-blue { background: hsl(210 90% 55% / 0.06); }

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}

/* ─── GLASS / CARD STYLES ─── */
.glass {
  background: hsl(var(--card) / 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid hsl(var(--border) / 0.5);
}

.card-base {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-base:hover {
  border-color: hsl(var(--primary) / 0.25);
  box-shadow: 0 0 40px hsl(var(--primary) / 0.05);
}

.card-shine { position: relative; overflow: hidden; }
.card-shine::after {
  content: '';
  position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: linear-gradient(45deg, transparent 30%, hsl(var(--primary) / 0.03) 50%, transparent 70%);
  transform: rotate(45deg) translateY(100%);
  transition: 0.6s;
}
.card-shine:hover::after { transform: rotate(45deg) translateY(-100%); }

/* Animated border gradient card */
.card-glow {
  position: relative;
  background: hsl(var(--card));
  border-radius: var(--radius);
  overflow: hidden;
}
.card-glow::before {
  content: ''; position: absolute; inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, hsl(var(--primary) / 0.4), transparent 40%, transparent 60%, hsl(var(--primary) / 0.2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}

/* Hover lift card */
.card-hover-lift {
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s;
}
.card-hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px hsl(var(--primary) / 0.08), 0 0 0 1px hsl(var(--primary) / 0.15);
}

/* ─── GLOW ─── */
.glow-primary { box-shadow: 0 0 60px hsl(var(--primary) / 0.1), 0 0 120px hsl(var(--primary) / 0.03); }

/* ─── BADGE ─── */
.badge-primary {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.375rem 1rem;
  background: hsl(var(--primary) / 0.08);
  color: hsl(var(--primary));
  border: 1px solid hsl(var(--primary) / 0.15);
  border-radius: 9999px;
  font-size: 0.8125rem; font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-ghost {
  display: inline-flex; align-items: center; gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  background: hsl(var(--muted) / 0.5);
  color: hsl(var(--muted-foreground));
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 9999px;
  font-size: 0.75rem; font-weight: 500;
}

/* ─── BUTTONS ─── */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: hsl(var(--primary)); color: hsl(var(--primary-foreground));
  font-weight: 700; font-size: 0.9375rem;
  border-radius: var(--radius); border: none; cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1); text-decoration: none;
  position: relative; overflow: hidden;
}
.btn-primary::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent, hsl(0 0% 100% / 0.15), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s;
}
.btn-primary:hover::before { transform: translateX(100%); }
.btn-primary:hover {
  background: hsl(var(--primary) / 0.9);
  box-shadow: 0 8px 30px hsl(var(--primary) / 0.3), 0 0 0 1px hsl(var(--primary) / 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: transparent; color: hsl(var(--foreground));
  font-weight: 600; font-size: 0.9375rem;
  border-radius: var(--radius); border: 1px solid hsl(var(--border));
  cursor: pointer; transition: all 0.25s; text-decoration: none;
}
.btn-outline:hover {
  background: hsl(var(--card)); border-color: hsl(var(--primary) / 0.4);
  color: hsl(var(--primary));
  box-shadow: 0 0 20px hsl(var(--primary) / 0.06);
}

.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: hsl(var(--secondary)); color: hsl(var(--foreground));
  font-weight: 600; font-size: 0.9375rem;
  border-radius: var(--radius); border: 1px solid hsl(var(--border));
  cursor: pointer; transition: all 0.25s; text-decoration: none;
}
.btn-secondary:hover {
  background: hsl(var(--muted)); border-color: hsl(var(--primary) / 0.3);
  color: hsl(var(--primary));
}

.btn-ghost {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.5rem 1rem; background: transparent;
  color: hsl(var(--muted-foreground));
  font-weight: 500; font-size: 0.875rem;
  border: none; border-radius: var(--radius);
  cursor: pointer; transition: all 0.2s; text-decoration: none;
}
.btn-ghost:hover { color: hsl(var(--primary)); background: hsl(var(--primary) / 0.06); }

/* ─── COURSE NUMBER ─── */
.course-number {
  position: absolute; top: 0.75rem; left: 0.75rem;
  width: 2.25rem; height: 2.25rem;
  background: hsl(var(--background) / 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 0.5rem;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.8125rem;
  color: hsl(var(--primary)); z-index: 5;
}

/* ─── MILESTONE ─── */
.milestone-marker {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.5rem 0;
}
.milestone-marker::before, .milestone-marker::after {
  content: ''; flex: 1; height: 1px;
  background: linear-gradient(to right, transparent, hsl(var(--primary) / 0.3), transparent);
}
.milestone-badge {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: hsl(var(--primary) / 0.1);
  border: 1px solid hsl(var(--primary) / 0.25);
  border-radius: 9999px;
  color: hsl(var(--primary)); font-weight: 700; font-size: 0.875rem;
  white-space: nowrap;
}

/* ─── COURSE CONNECTOR ─── */
.course-connector {
  position: relative;
  height: 110px;
  margin: 0;
}

/* Main diagonal line */
.connector-line {
  position: absolute;
  left: 50%; top: 50%;
  width: 62%;
  height: 2px;
  border-radius: 2px;
  transform: translate(-50%, -50%) rotate(-7deg);
  background: linear-gradient(90deg,
    hsl(var(--primary) / 0.15) 0%,
    hsl(var(--primary) / 0.55) 20%,
    hsl(var(--primary) / 0.7) 50%,
    hsl(var(--primary) / 0.55) 80%,
    hsl(var(--primary) / 0.15) 100%);
}
.course-connector.conn-reverse .connector-line {
  transform: translate(-50%, -50%) rotate(7deg);
}

/* Sweep animation */
.connector-line::after {
  content: '';
  position: absolute;
  top: -2px; bottom: -2px;
  width: 80px;
  background: linear-gradient(90deg, transparent, hsl(var(--primary) / 0.9), transparent);
  border-radius: 2px;
  filter: blur(3px);
  animation: connSweep 4s ease-in-out infinite;
}
@keyframes connSweep {
  0%   { left: -80px; opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { left: calc(100% + 80px); opacity: 0; }
}

/* Vertical stubs at line ends */
.connector-stub-l,
.connector-stub-r {
  position: absolute;
  width: 2px;
  height: 28px;
  border-radius: 1px;
}

/* Default (/ slope →): left stub at bottom, right stub at top */
.connector-stub-l {
  left: 19%;
  bottom: 2px;
  background: linear-gradient(to top, hsl(var(--primary) / 0.12), hsl(var(--primary) / 0.45));
}
.connector-stub-r {
  right: 19%;
  top: 2px;
  background: linear-gradient(to bottom, hsl(var(--primary) / 0.12), hsl(var(--primary) / 0.45));
}

/* Reverse (\ slope ←): left stub at top, right stub at bottom */
.course-connector.conn-reverse .connector-stub-l {
  bottom: auto; top: 2px;
  background: linear-gradient(to bottom, hsl(var(--primary) / 0.12), hsl(var(--primary) / 0.45));
}
.course-connector.conn-reverse .connector-stub-r {
  top: auto; bottom: 2px;
  background: linear-gradient(to top, hsl(var(--primary) / 0.12), hsl(var(--primary) / 0.45));
}

/* Glow aura behind circle */
.connector-glow {
  position: absolute;
  top: 50%; left: 50%;
  width: 64px; height: 64px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, hsl(var(--primary) / 0.35) 0%, transparent 70%);
  filter: blur(10px);
  z-index: 1;
  animation: connGlowPulse 3s ease-in-out infinite;
}
@keyframes connGlowPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50%      { opacity: 1;   transform: translate(-50%, -50%) scale(1.3); }
}

/* Center arrow circle */
.connector-arrow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(40 100% 42%));
  display: flex; align-items: center; justify-content: center;
  box-shadow:
    0 0 16px hsl(var(--primary) / 0.5),
    0 0 36px hsl(var(--primary) / 0.2),
    inset 0 1px 1px hsl(0 0% 100% / 0.15);
  cursor: pointer;
  transition: transform 0.35s cubic-bezier(0.16,1,0.3,1), box-shadow 0.35s ease;
}
.connector-arrow:hover {
  transform: translate(-50%, -50%) scale(1.15);
  box-shadow:
    0 0 26px hsl(var(--primary) / 0.7),
    0 0 56px hsl(var(--primary) / 0.3),
    inset 0 1px 1px hsl(0 0% 100% / 0.2);
}
.connector-arrow svg {
  width: 18px; height: 18px;
  color: white;
  stroke-width: 2.5;
  filter: drop-shadow(0 1px 2px hsl(0 0% 0% / 0.15));
}

/* Responsive */
@media (max-width: 640px) {
  .course-connector { height: 80px; }
  .connector-line { width: 78%; }
  .connector-stub-l { left: 11%; height: 22px; }
  .connector-stub-r { right: 11%; height: 22px; }
  .connector-arrow { width: 36px; height: 36px; }
  .connector-arrow svg { width: 15px; height: 15px; }
  .connector-glow { width: 48px; height: 48px; }
}

/* Light mode */
[data-theme="light"] .connector-line {
  background: linear-gradient(90deg,
    hsl(var(--primary) / 0.1) 0%, hsl(var(--primary) / 0.35) 20%,
    hsl(var(--primary) / 0.5) 50%, hsl(var(--primary) / 0.35) 80%,
    hsl(var(--primary) / 0.1) 100%);
}
[data-theme="light"] .connector-stub-l,
[data-theme="light"] .connector-stub-r {
  opacity: 0.7;
}
[data-theme="light"] .connector-arrow {
  box-shadow: 0 0 12px hsl(var(--primary) / 0.3), 0 0 28px hsl(var(--primary) / 0.1);
}
[data-theme="light"] .connector-glow { opacity: 0.35; }

/* ─── FILTER TABS ─── */
.filter-tab {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1.25rem; border-radius: 9999px;
  font-size: 0.875rem; font-weight: 600;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.filter-tab:hover {
  border-color: hsl(var(--primary) / 0.4);
  color: hsl(var(--primary));
  background: hsl(var(--primary) / 0.06);
}
.filter-tab.active {
  background: hsl(var(--primary) / 0.12);
  border-color: hsl(var(--primary) / 0.4);
  color: hsl(var(--primary));
  box-shadow: 0 0 12px hsl(var(--primary) / 0.15);
}
.filter-tab svg {
  width: 1rem; height: 1rem;
}
[data-theme="light"] .filter-tab {
  background: hsl(0 0% 100%);
  border-color: hsl(0 0% 85%);
}
[data-theme="light"] .filter-tab:hover,
[data-theme="light"] .filter-tab.active {
  background: hsl(var(--primary) / 0.1);
  border-color: hsl(var(--primary) / 0.5);
}

/* ─── LEVEL BADGES ─── */
.level-badge {
  display: inline-flex; align-items: center; gap: 0.25rem;
  padding: 0.25rem 0.75rem; border-radius: 9999px;
  font-size: 0.75rem; font-weight: 600;
}
.level-beginner { background: hsl(142 76% 36% / 0.15); color: #4ade80; }
.level-intermediate { background: hsl(36 100% 50% / 0.15); color: hsl(var(--primary)); }
.level-advanced { background: hsl(0 84% 60% / 0.15); color: #f87171; }
.level-all { background: hsl(217 91% 60% / 0.15); color: #60a5fa; }

/* ─── FEATURE LIST ITEM ─── */
.feature-item {
  display: flex; align-items: flex-start; gap: 0.875rem;
  padding: 0.75rem 0;
}
.feature-icon {
  width: 2rem; height: 2rem; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 0.5rem;
  background: hsl(var(--primary) / 0.1);
  border: 1px solid hsl(var(--primary) / 0.15);
  color: hsl(var(--primary));
}

/* ─── TESTIMONIAL CAROUSEL ─── */
.testimonial-track {
  display: flex; gap: 1.5rem;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.testimonial-card {
  min-width: 100%; flex-shrink: 0;
  padding: 2rem;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
}
@media (min-width: 768px) { .testimonial-card { min-width: calc(50% - 0.75rem); } }
@media (min-width: 1024px) { .testimonial-card { min-width: calc(33.333% - 1rem); } }

/* ─── FAQ ─── */
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.3s;
}
.faq-item.active .faq-answer { max-height: 500px; }
.faq-item .faq-icon { transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
.faq-item.active .faq-icon { transform: rotate(180deg); }

/* ─── STEP TIMELINE ─── */
.step-card {
  position: relative; padding: 2rem;
  background: hsl(var(--card)); border: 1px solid hsl(var(--border));
  border-radius: var(--radius); transition: all 0.35s;
}
.step-card:hover {
  border-color: hsl(var(--primary) / 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px hsl(var(--primary) / 0.08);
}
.step-number {
  display: flex; align-items: center; justify-content: center;
  width: 3rem; height: 3rem;
  background: hsl(var(--primary) / 0.1);
  border: 1px solid hsl(var(--primary) / 0.25);
  border-radius: 0.75rem;
  color: hsl(var(--primary)); font-weight: 800; font-size: 1.125rem;
  margin-bottom: 1rem;
}

/* ─── STATS ─── */
.stat-item { text-align: center; padding: 1rem 1.5rem; }
.stat-value { font-size: 1.75rem; font-weight: 800; color: hsl(var(--primary)); line-height: 1.2; }
.stat-label { font-size: 0.8125rem; color: hsl(var(--muted-foreground)); margin-top: 0.25rem; }

/* ─── BENTO GRID ─── */
.bento-grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: minmax(200px, auto);
}
.bento-grid .bento-wide { grid-column: span 2; }
.bento-grid .bento-tall { grid-row: span 2; }

@media (max-width: 768px) {
  .bento-grid { grid-template-columns: 1fr; }
  .bento-grid .bento-wide { grid-column: span 1; }
  .bento-grid .bento-tall { grid-row: span 1; }
}

/* ─── MARQUEE / TRUST BAR ─── */
.marquee-container { overflow: hidden; position: relative; }
.marquee-container::before, .marquee-container::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 80px; z-index: 2;
}
.marquee-container::before { left: 0; background: linear-gradient(to right, hsl(var(--background)), transparent); }
.marquee-container::after { right: 0; background: linear-gradient(to left, hsl(var(--background)), transparent); }

.marquee-track {
  display: flex; gap: 3rem; width: max-content;
  animation: marquee 30s linear infinite;
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ─── CURSOR FOLLOW GLOW ─── */
.hero-glow {
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, hsl(var(--primary) / 0.08), transparent 70%);
  pointer-events: none;
  transition: transform 0.3s ease-out;
  will-change: transform;
}

/* ─── PREMIUM HERO UPGRADE ─── */

/* Animated gradient mesh */
.hero-mesh {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0;
}
.hero-mesh::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: conic-gradient(from 0deg at 50% 50%,
    hsl(var(--primary) / 0.08) 0deg,
    hsl(270 80% 60% / 0.06) 90deg,
    hsl(210 90% 55% / 0.04) 180deg,
    hsl(var(--primary) / 0.08) 270deg,
    hsl(270 80% 60% / 0.06) 360deg);
  animation: meshRotate 20s linear infinite;
}
@keyframes meshRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Floating geometric shapes */
.hero-shape {
  position: absolute; pointer-events: none; opacity: 0.06;
  border: 1.5px solid hsl(var(--primary) / 0.4);
}
.hero-shape-1 { width: 60px; height: 60px; border-radius: 12px; top: 15%; left: 8%;
  animation: shapeFloat1 12s ease-in-out infinite; transform: rotate(45deg); }
.hero-shape-2 { width: 40px; height: 40px; border-radius: 50%; top: 25%; right: 12%;
  animation: shapeFloat2 10s ease-in-out infinite; border-color: hsl(270 80% 60% / 0.4); }
.hero-shape-3 { width: 0; height: 0; border-left: 20px solid transparent; border-right: 20px solid transparent;
  border-bottom: 35px solid hsl(210 90% 55% / 0.08); bottom: 30%; left: 5%;
  animation: shapeFloat3 14s ease-in-out infinite; border-width: 0; }
.hero-shape-3 { width: 50px; height: 50px; border-radius: 8px; bottom: 25%; left: 6%;
  animation: shapeFloat3 14s ease-in-out infinite; border-color: hsl(210 90% 55% / 0.3); }
.hero-shape-4 { width: 30px; height: 30px; border-radius: 50%; bottom: 20%; right: 8%;
  animation: shapeFloat1 11s ease-in-out infinite reverse; border-color: hsl(160 80% 50% / 0.3); }
.hero-shape-5 { width: 45px; height: 45px; border-radius: 10px; top: 60%; right: 5%;
  animation: shapeFloat2 13s ease-in-out infinite reverse; transform: rotate(30deg); }

@keyframes shapeFloat1 {
  0%, 100% { transform: rotate(45deg) translate(0, 0); }
  25% { transform: rotate(60deg) translate(15px, -20px); }
  50% { transform: rotate(45deg) translate(-10px, -30px); }
  75% { transform: rotate(30deg) translate(20px, -10px); }
}
@keyframes shapeFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-20px, 15px) scale(1.1); }
  66% { transform: translate(15px, -25px) scale(0.9); }
}
@keyframes shapeFloat3 {
  0%, 100% { transform: rotate(0deg) translate(0, 0); }
  50% { transform: rotate(180deg) translate(20px, -20px); }
}

/* Sparkle particles */
.hero-sparkles { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 1; }
.sparkle {
  position: absolute; width: 3px; height: 3px; border-radius: 50%;
  background: hsl(var(--primary)); opacity: 0;
  animation: sparkleAnim var(--dur, 3s) var(--delay, 0s) infinite;
}
@keyframes sparkleAnim {
  0%, 100% { opacity: 0; transform: scale(0) translateY(0); }
  20% { opacity: 1; transform: scale(1) translateY(-10px); }
  80% { opacity: 0.5; transform: scale(0.5) translateY(-30px); }
}

/* Floating tool icons */
.hero-tool-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 12px;
  background: hsl(var(--card) / 0.8); backdrop-filter: blur(8px);
  border: 1px solid hsl(var(--border) / 0.5);
  font-size: 11px; font-weight: 800; letter-spacing: 0.5px;
  transition: all 0.3s ease; cursor: default;
  box-shadow: 0 4px 20px hsl(0 0% 0% / 0.15);
}
.hero-tool-icon:hover {
  transform: translateY(-4px) scale(1.1);
  border-color: hsl(var(--primary) / 0.4);
  box-shadow: 0 8px 30px hsl(var(--primary) / 0.15);
}

/* Bento grid for hero visual */
.hero-bento {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  grid-template-rows: auto auto;
  gap: 12px;
}
@media (max-width: 640px) {
  .hero-bento {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
}
.hero-bento-main { grid-row: 1 / 3; }
@media (max-width: 640px) {
  .hero-bento-main { grid-row: auto; }
}

.bento-card {
  background: hsl(var(--card) / 0.7);
  backdrop-filter: blur(16px);
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 1rem; overflow: hidden;
  position: relative;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.bento-card:hover {
  border-color: hsl(var(--primary) / 0.3);
  box-shadow: 0 0 40px hsl(var(--primary) / 0.06);
  transform: translateY(-2px);
}
.bento-card::before {
  content: ''; position: absolute; top: 0; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, hsl(var(--primary) / 0.3), transparent);
}

/* Animated number counter */
.hero-counter { font-variant-numeric: tabular-nums; }

/* CTA glow effect */
.btn-glow {
  position: relative; overflow: hidden;
}
.btn-glow::before {
  content: ''; position: absolute; inset: -2px; border-radius: inherit;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(36 100% 60%), hsl(var(--primary)));
  z-index: -1; opacity: 0; transition: opacity 0.3s;
  filter: blur(12px);
}
.btn-glow:hover::before { opacity: 0.5; }

/* Animated gradient line under heading */
.hero-underline {
  position: relative; display: inline-block; padding-bottom: 8px;
}
.hero-underline::after {
  content: ''; position: absolute; bottom: 0; left: 5%; width: 90%; height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, hsl(var(--primary)), hsl(36 100% 70%), hsl(270 80% 60%));
  background-size: 200% 100%;
  animation: gradientSlide 3s ease infinite;
}
@keyframes gradientSlide {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Glowing badge */
.badge-glow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 100px;
  font-size: 12px; font-weight: 600;
  background: hsl(var(--primary) / 0.08);
  border: 1px solid hsl(var(--primary) / 0.2);
  color: hsl(var(--primary));
  box-shadow: 0 0 20px hsl(var(--primary) / 0.1), inset 0 0 20px hsl(var(--primary) / 0.03);
  animation: badgePulse 3s ease-in-out infinite;
}
@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 20px hsl(var(--primary) / 0.1), inset 0 0 20px hsl(var(--primary) / 0.03); }
  50% { box-shadow: 0 0 30px hsl(var(--primary) / 0.2), inset 0 0 25px hsl(var(--primary) / 0.06); }
}

/* Light theme overrides for hero */
[data-theme="light"] .hero-mesh::before { opacity: 0.4; }
[data-theme="light"] .hero-shape { opacity: 0.04; }
[data-theme="light"] .hero-tool-icon { background: hsl(0 0% 100% / 0.9); box-shadow: 0 4px 20px hsl(0 0% 0% / 0.08); }
[data-theme="light"] .bento-card { background: hsl(0 0% 100% / 0.7); }
[data-theme="light"] .sparkle { background: hsl(var(--primary) / 0.8); }

/* ─── VIDEO EMBED ─── */
.video-embed { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: var(--radius); }
.video-embed iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }

.video-thumbnail-link {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 16 / 9;
  background: hsl(var(--secondary));
}

.video-thumbnail-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.video-thumbnail-link:hover img {
  transform: scale(1.04);
}

.course-card-media {
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  min-height: 13rem;
  background: hsl(var(--secondary));
}

.course-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

@media (min-width: 768px) {
  .course-card-media {
    width: 20rem;
    min-width: 20rem;
    height: 17rem;
  }
}

/* Portrait video — auto-height, no forced 16:9 ratio */
.video-embed-portrait {
  position: relative; overflow: hidden; border-radius: var(--radius);
  width: 100%; height: 0; padding-bottom: 177.78%; /* 9:16 ratio */
}
.video-embed-portrait iframe {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;
}

/* ─── CURRICULUM ─── */
.curriculum-content { max-height: 0; overflow: hidden; transition: max-height 0.5s cubic-bezier(0.16,1,0.3,1); }
.curriculum-item.open .curriculum-content { max-height: 2000px; }
.curriculum-item.open .curriculum-chevron { transform: rotate(180deg); }
.curriculum-chevron { transition: transform 0.3s; }

/* ─── VIDEO TESTIMONIAL CARDS ─── */
.vtc { position: relative; transition: transform 0.5s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.5s; }
.vtc:hover { transform: translateY(-8px) scale(1.02); box-shadow: 0 30px 80px hsl(var(--primary) / 0.12), 0 0 0 1px hsl(var(--primary) / 0.2); }

/* Animated gradient border */
.vtc::before {
  content: ''; position: absolute; inset: -1px; border-radius: var(--radius); z-index: -1;
  background: conic-gradient(from var(--vtc-angle, 0deg), hsl(var(--primary)), transparent 40%, transparent 60%, hsl(var(--primary) / 0.5));
  opacity: 0; transition: opacity 0.5s;
}
.vtc:hover::before { opacity: 1; animation: vtcBorderSpin 3s linear infinite; }
@keyframes vtcBorderSpin { to { --vtc-angle: 360deg; } }
@property --vtc-angle { syntax: '<angle>'; initial-value: 0deg; inherits: false; }

/* Shine sweep on hover */
.vtc-shine { position: relative; overflow: hidden; }
.vtc-shine::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, hsl(var(--primary) / 0.08), transparent);
  transform: skewX(-15deg); transition: none; pointer-events: none;
}
.vtc:hover .vtc-shine::after { animation: vtcShineSweep 0.8s ease-out forwards; }
@keyframes vtcShineSweep { to { left: 150%; } }

/* Staggered card entrance */
.vtc-stagger { opacity: 0; transform: translateY(50px) scale(0.92); }
.vtc-stagger.visible { opacity: 1; transform: translateY(0) scale(1); transition: all 0.7s cubic-bezier(0.16,1,0.3,1); }
.vtc-stagger:nth-child(1).visible { transition-delay: 0s; }
.vtc-stagger:nth-child(2).visible { transition-delay: 0.15s; }
.vtc-stagger:nth-child(3).visible { transition-delay: 0.3s; }

/* Info panel slide-up */
.vtc-info { transform: translateY(8px); opacity: 0.7; transition: all 0.4s cubic-bezier(0.16,1,0.3,1); }
.vtc:hover .vtc-info { transform: translateY(0); opacity: 1; }

/* Avatar pulse ring */
.vtc-avatar { position: relative; }
.vtc-avatar::after {
  content: ''; position: absolute; inset: -3px; border-radius: 50%;
  border: 2px solid hsl(var(--primary) / 0); transition: all 0.4s;
}
.vtc:hover .vtc-avatar::after { border-color: hsl(var(--primary) / 0.5); animation: vtcAvatarPulse 1.5s ease infinite; }
@keyframes vtcAvatarPulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.15); opacity: 0.4; } }

/* Role badge */
.vtc-role {
  display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px;
  border-radius: 100px; font-size: 10px; font-weight: 600; letter-spacing: 0.03em;
  background: hsl(var(--primary) / 0.1); color: hsl(var(--primary)); border: 1px solid hsl(var(--primary) / 0.15);
  transition: all 0.3s;
}
.vtc:hover .vtc-role { background: hsl(var(--primary) / 0.15); border-color: hsl(var(--primary) / 0.3); }

/* Play icon overlay */
.vtc-play {
  position: absolute; inset: 0; z-index: 5; display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s; pointer-events: none;
}
.vtc:hover .vtc-play { opacity: 1; }

/* Video top glow */
.vtc-video-glow {
  position: absolute; bottom: 0; left: 0; right: 0; height: 60px; z-index: 3;
  background: linear-gradient(to top, hsl(var(--card)), transparent); pointer-events: none;
}

/* ─── ANIMATIONS ─── */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes pulse-dot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .5; transform: scale(1.5); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes spin-slow { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.animate-fadeInUp { animation: fadeInUp 0.6s ease-out forwards; }
.animate-float { animation: float 3s ease-in-out infinite; }
.animate-shimmer {
  background: linear-gradient(90deg, transparent 25%, hsl(var(--primary) / 0.06) 50%, transparent 75%);
  background-size: 200% 100%;
  animation: shimmer 3s ease-in-out infinite;
}
.animate-spin-slow { animation: spin-slow 20s linear infinite; }

/* ─── SCROLL REVEAL ─── */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.16,1,0.3,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: all 0.8s cubic-bezier(0.16,1,0.3,1); }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: all 0.8s cubic-bezier(0.16,1,0.3,1); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }
.reveal-scale { opacity: 0; transform: scale(0.95); transition: all 0.8s cubic-bezier(0.16,1,0.3,1); }
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* ─── HAMBURGER ─── */
.hamburger span { display: block; width: 22px; height: 2px; background: hsl(var(--foreground)); transition: 0.3s; border-radius: 2px; }
.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); }

/* ─── PULSE DOT ─── */
.pulse-dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: hsl(var(--primary)); flex-shrink: 0; }
.pulse-dot::after { content: ''; position: absolute; inset: -4px; border-radius: 50%; background: hsl(var(--primary) / 0.3); animation: pulse-dot 2s ease infinite; }

/* ─── COUNTER ─── */
.counter-animate { font-variant-numeric: tabular-nums; }

/* ─── TOAST ─── */
.toast {
  position: fixed; top: 24px; right: 24px; z-index: 9999;
  padding: 0.875rem 1.5rem;
  background: hsl(var(--card)); border: 1px solid hsl(var(--border));
  border-radius: var(--radius); color: hsl(var(--foreground));
  font-size: 0.875rem; font-weight: 500;
  box-shadow: 0 20px 40px hsl(0 0% 0% / 0.3);
  transform: translateX(120%); transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
}
.toast.show { transform: translateX(0); }
.toast-success { border-left: 3px solid hsl(142 76% 36%); }
.toast-error { border-left: 3px solid hsl(0 84% 60%); }

/* ─── AUTH MODAL ─── */
.auth-overlay {
  position: fixed; inset: 0; z-index: 9990;
  background: hsl(0 0% 0% / 0.7);
  backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s ease;
}
.auth-overlay.active { opacity: 1; pointer-events: auto; }
.auth-modal {
  position: fixed; inset: 0; z-index: 9991;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s ease;
}
.auth-modal.active { opacity: 1; pointer-events: auto; }
.auth-modal-card {
  width: 100%; max-width: 440px;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 32px 80px hsl(0 0% 0% / 0.45), 0 0 0 1px hsl(var(--primary) / 0.05);
  transform: translateY(24px) scale(0.97);
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
}
.auth-modal.active .auth-modal-card {
  transform: translateY(0) scale(1);
}
.auth-tabs {
  display: flex; border-bottom: 1px solid hsl(var(--border));
}
.auth-tab {
  flex: 1; padding: 0.875rem; text-align: center;
  font-size: 0.875rem; font-weight: 600;
  color: hsl(var(--muted-foreground));
  background: transparent; border: none; cursor: pointer;
  position: relative; transition: color 0.3s;
}
.auth-tab:hover { color: hsl(var(--foreground)); }
.auth-tab.active { color: hsl(var(--primary)); }
.auth-tab.active::after {
  content: ''; position: absolute; bottom: -1px; left: 0; right: 0;
  height: 2px; background: hsl(var(--primary));
  border-radius: 1px 1px 0 0;
}
.auth-form { display: none; }
.auth-form.active { display: block; }
.auth-form .input-group { margin-bottom: 0.875rem; }
.auth-form .input-group label {
  display: block; margin-bottom: 0.375rem;
  font-size: 0.8125rem; font-weight: 600;
  color: hsl(var(--foreground));
}
.auth-form .input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.auth-close {
  position: absolute; top: 0.75rem; right: 0.75rem; z-index: 2;
  width: 2rem; height: 2rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 0.5rem; border: none;
  background: hsl(var(--secondary));
  color: hsl(var(--muted-foreground));
  cursor: pointer; transition: all 0.2s;
}
.auth-close:hover { background: hsl(var(--muted)); color: hsl(var(--foreground)); }
[data-theme="light"] .auth-modal-card {
  box-shadow: 0 32px 80px hsl(0 0% 0% / 0.15), 0 0 0 1px hsl(0 0% 0% / 0.05);
}
[data-theme="light"] .auth-overlay {
  background: hsl(0 0% 0% / 0.45);
}

/* ─── FORM INPUTS ─── */
.input-field {
  width: 100%; padding: 0.75rem 1rem;
  background: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  color: hsl(var(--foreground));
  font-size: 0.9375rem; font-family: inherit;
  transition: all 0.2s; outline: none;
}
.input-field::placeholder { color: hsl(var(--muted-foreground)); }
.input-field:focus {
  border-color: hsl(var(--primary) / 0.5);
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.08);
}

/* ─── NAV SCROLL ─── */
#mainNav {
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease, padding 0.35s ease;
}
.nav-scrolled {
  background: hsl(var(--background) / 0.82) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  border-bottom: 1px solid hsl(var(--border) / 0.4) !important;
  box-shadow: 0 1px 20px hsl(0 0% 0% / 0.15), 0 1px 3px hsl(0 0% 0% / 0.08) !important;
}

/* ─── SCROLL PROGRESS BAR ─── */
.scroll-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 10;
  overflow: hidden;
}
.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, hsl(var(--primary)), hsl(var(--primary) / 0.7), hsl(280 80% 60%));
  border-radius: 0 2px 2px 0;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px hsl(var(--primary) / 0.5);
}

/* ─── PAGE TRANSITION ─── */
.page-transition { animation: fadeInUp 0.4s ease-out; }

/* ─── HERO VISUAL CARD ─── */
.hero-visual-card {
  position: relative;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 25px 80px -12px hsl(0 0% 0% / 0.4);
}
.hero-visual-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, hsl(var(--primary) / 0.08) 0%, transparent 50%, hsl(270 80% 60% / 0.04) 100%);
  pointer-events: none;
}

/* ─── DECORATIVE BORDER GLOW LINE ─── */
.border-glow-top {
  position: relative;
}
.border-glow-top::before {
  content: ''; position: absolute; top: 0; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, hsl(var(--primary) / 0.5), transparent);
}

/* ─── COURSE DETAIL MODAL ─── */
.course-modal-overlay {
  position: fixed; inset: 0; z-index: 9998;
  background: hsl(0 0% 0% / 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.course-modal-overlay.active { opacity: 1; pointer-events: all; }

.course-modal {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  pointer-events: none;
}
.course-modal.active { pointer-events: all; }

.course-modal-content {
  position: relative;
  width: 100%; max-width: 56rem; max-height: 90vh;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 1rem;
  overflow: hidden;
  transform: translateY(30px) scale(0.96);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 40px 100px hsl(0 0% 0% / 0.5), 0 0 0 1px hsl(var(--primary) / 0.08);
}
.course-modal.active .course-modal-content {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.course-modal-scroll {
  overflow-y: auto; max-height: 90vh;
  scrollbar-width: thin;
  scrollbar-color: hsl(var(--primary) / 0.3) transparent;
}

.course-modal-close {
  position: absolute; top: 1rem; right: 1rem; z-index: 10;
  width: 2.5rem; height: 2.5rem;
  display: flex; align-items: center; justify-content: center;
  background: hsl(var(--background) / 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
  color: hsl(var(--muted-foreground));
  cursor: pointer; transition: all 0.2s;
}
.course-modal-close:hover {
  color: hsl(var(--foreground));
  border-color: hsl(var(--primary) / 0.3);
  background: hsl(var(--card));
}

.lesson-item {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  transition: background 0.2s;
}
.lesson-item:hover { background: hsl(var(--muted) / 0.5); }
.lesson-item .lesson-num {
  width: 1.75rem; height: 1.75rem; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: hsl(var(--primary) / 0.1);
  border: 1px solid hsl(var(--primary) / 0.2);
  border-radius: 0.375rem;
  font-size: 0.6875rem; font-weight: 700;
  color: hsl(var(--primary));
}

/* ─── TOOLS STRIP SECTION ─── */
.tool-icon-card {
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
  padding: 1.5rem 1rem;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.tool-icon-card:hover {
  transform: translateY(-6px);
  border-color: hsl(var(--primary) / 0.3);
  box-shadow: 0 16px 48px hsl(var(--primary) / 0.08);
}
.tool-icon-card img {
  width: 3.5rem; height: 3.5rem; object-fit: contain;
  filter: drop-shadow(0 4px 12px hsl(0 0% 0% / 0.3));
}

/* ─── WHAT YOU GET SECTION ─── */
.benefit-card {
  position: relative; padding: 2rem;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.benefit-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, hsl(var(--primary) / 0.5), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.benefit-card:hover::before { opacity: 1; }
.benefit-card:hover {
  transform: translateY(-4px);
  border-color: hsl(var(--primary) / 0.25);
  box-shadow: 0 16px 48px hsl(var(--primary) / 0.06);
}
.benefit-icon {
  width: 3rem; height: 3rem;
  display: flex; align-items: center; justify-content: center;
  background: hsl(var(--primary) / 0.08);
  border: 1px solid hsl(var(--primary) / 0.15);
  border-radius: 0.75rem;
  color: hsl(var(--primary));
  margin-bottom: 1rem;
}

/* ─── PAGE TRANSITIONS ─── */
.page-transition-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  pointer-events: none;
  background: hsl(var(--background));
  opacity: 0;
  transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.page-transition-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* ─── CHECKOUT MODAL ─── */
.checkout-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: hsl(0 0% 0% / 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.checkout-overlay.active { opacity: 1; pointer-events: all; }

.checkout-modal {
  position: fixed; inset: 0; z-index: 10001;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  pointer-events: none;
}
.checkout-modal.active { pointer-events: all; }

.checkout-modal-content {
  position: relative;
  width: 100%; max-width: 52rem; max-height: 92vh;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 1rem;
  overflow: hidden;
  transform: translateY(30px) scale(0.96);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 40px 100px hsl(0 0% 0% / 0.5), 0 0 0 1px hsl(var(--primary) / 0.08);
}
.checkout-modal.active .checkout-modal-content {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.checkout-scroll {
  overflow-y: auto; max-height: 92vh;
  scrollbar-width: thin;
  scrollbar-color: hsl(var(--primary) / 0.3) transparent;
}
[data-theme="light"] .checkout-modal-content {
  box-shadow: 0 40px 100px hsl(0 0% 0% / 0.12), 0 0 0 1px hsl(0 0% 0% / 0.05);
}

/* Payment Tabs */
.pay-tabs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem;
  margin-bottom: 1rem;
}
.pay-tab {
  display: flex; flex-direction: column; align-items: center; gap: 0.25rem;
  padding: 0.875rem 0.75rem;
  background: hsl(var(--secondary));
  border: 2px solid hsl(var(--border));
  border-radius: 0.75rem;
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  transition: all 0.25s ease;
  font-size: 0.8125rem;
}
.pay-tab:hover {
  border-color: hsl(var(--primary) / 0.3);
  color: hsl(var(--foreground));
}
.pay-tab.active {
  border-color: hsl(var(--primary));
  background: hsl(var(--primary) / 0.06);
  color: hsl(var(--primary));
  box-shadow: 0 0 0 1px hsl(var(--primary) / 0.1), 0 4px 12px hsl(var(--primary) / 0.08);
}

.pay-panel { display: none; }
.pay-panel.active { display: block; }

/* Success animation */
.checkout-success-icon {
  animation: successBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes successBounce {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.15); }
  100% { transform: scale(1); opacity: 1; }
}
.checkout-success-icon svg {
  animation: successCheck 0.4s 0.3s ease both;
}
@keyframes successCheck {
  0% { stroke-dashoffset: 40; opacity: 0; }
  100% { stroke-dashoffset: 0; opacity: 1; }
}

/* Shake animation for invalid fields */
.animate-shake {
  animation: fieldShake 0.4s ease;
}
@keyframes fieldShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* ─── GUIDE POPUP ─── */
.guide-overlay {
  position: fixed; inset: 0;
  background: hsl(0 0% 0% / 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10002;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.guide-overlay.active { opacity: 1; }
.guide-overlay:not(.active) { pointer-events: none; }

.guide-card {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 1.25rem;
  width: 100%; max-width: 26rem;
  padding: 2.5rem 2rem 2rem;
  position: relative;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
  opacity: 0;
}
.guide-overlay.active .guide-card {
  transform: scale(1) translateY(0);
  opacity: 1;
}
.guide-step {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 0.875rem 0;
}
.guide-step + .guide-step { border-top: 1px solid hsl(var(--border) / 0.5); }
.guide-step-num {
  width: 2rem; height: 2rem; flex-shrink: 0;
  border-radius: 0.625rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 800;
}

/* ─── SUCCESS FULLSCREEN OVERLAY ─── */
.success-fullscreen {
  position: fixed; inset: 0;
  z-index: 10003;
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(ellipse at 30% 20%, hsl(var(--primary) / 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, hsl(160 70% 45% / 0.08) 0%, transparent 50%),
    hsl(220 20% 6%);
  animation: successFadeIn 0.4s ease both;
}
.success-fullscreen.hidden { display: none; }
@keyframes successFadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}
.success-card {
  width: 100%; max-width: 22rem;
  text-align: center;
  position: relative;
  animation: successCardSlide 0.5s 0.1s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes successCardSlide {
  0% { opacity: 0; transform: translateY(20px) scale(0.96); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.success-icon-ring {
  width: 4.5rem; height: 4.5rem; margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: linear-gradient(135deg, hsl(160 70% 45% / 0.15), hsl(160 70% 45% / 0.05));
  border: 2px solid hsl(160 70% 45% / 0.3);
  display: flex; align-items: center; justify-content: center;
  animation: successBounce 0.6s 0.2s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.success-icon-ring svg {
  animation: successCheck 0.4s 0.5s ease both;
}
.success-info-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.5rem 0;
}
.success-info-row + .success-info-row {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
[data-theme="light"] .success-fullscreen {
  background:
    radial-gradient(ellipse at 30% 20%, hsl(var(--primary) / 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, hsl(160 70% 45% / 0.06) 0%, transparent 50%),
    hsl(220 15% 96%);
}
[data-theme="light"] .success-fullscreen .success-card h3,
[data-theme="light"] .success-fullscreen .success-card .text-white {
  color: hsl(220 20% 10%);
}
[data-theme="light"] .success-fullscreen .text-white\/50,
[data-theme="light"] .success-fullscreen .text-white\/40,
[data-theme="light"] .success-fullscreen .text-white\/30 {
  color: hsl(220 10% 45%);
}

/* ─── LEGAL POPUP ─── */
.legal-overlay {
  position: fixed; inset: 0;
  background: hsl(0 0% 0% / 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10005;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.legal-overlay.active { opacity: 1; }
.legal-overlay:not(.active) { pointer-events: none; }

.legal-card {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 1.25rem;
  width: 100%; max-width: 40rem;
  max-height: 85vh;
  display: flex; flex-direction: column;
  transform: scale(0.95) translateY(10px);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
  opacity: 0;
  overflow: hidden;
}
.legal-overlay.active .legal-card {
  transform: scale(1) translateY(0);
  opacity: 1;
}
.legal-header {
  padding: 1.5rem 1.75rem 1rem;
  border-bottom: 1px solid hsl(var(--border));
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}
.legal-body {
  padding: 1.5rem 1.75rem 2rem;
  overflow-y: auto;
  flex: 1;
  scrollbar-width: thin;
  scrollbar-color: hsl(var(--primary) / 0.3) transparent;
}
.legal-body h3 {
  font-size: 0.9375rem; font-weight: 700;
  color: hsl(var(--foreground));
  margin: 1.5rem 0 0.5rem;
}
.legal-body h3:first-child { margin-top: 0; }
.legal-body p, .legal-body li {
  font-size: 0.8125rem; line-height: 1.7;
  color: hsl(var(--muted-foreground));
}
.legal-body ul {
  list-style: disc; padding-left: 1.25rem;
  margin: 0.375rem 0;
}
.legal-body ul li { margin-bottom: 0.25rem; }

/* ═══════════════════════════════════════════════════════
   CHATBOT WIDGET
   ═══════════════════════════════════════════════════════ */

/* Toggle button */
.cb-toggle {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(36 100% 40%));
  color: #000;
  box-shadow: 0 4px 24px hsl(var(--primary) / 0.35), 0 0 0 0 hsl(var(--primary) / 0.2);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  animation: cbPulseRing 3s ease-in-out infinite;
}
.cb-toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 32px hsl(var(--primary) / 0.5);
}
.cb-toggle-active { animation: none; }
.cb-toggle-icon { display: flex; align-items: center; justify-content: center; }

@keyframes cbPulseRing {
  0%, 100% { box-shadow: 0 4px 24px hsl(var(--primary) / 0.35), 0 0 0 0 hsl(var(--primary) / 0.2); }
  50% { box-shadow: 0 4px 24px hsl(var(--primary) / 0.35), 0 0 0 10px hsl(var(--primary) / 0); }
}

/* Notification badge */
.cb-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ef4444;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: none;
  align-items: center;
  justify-content: center;
  border: 2px solid hsl(var(--background));
  animation: cbBadgePop 0.3s ease-out;
}
@keyframes cbBadgePop { 0% { transform: scale(0); } 100% { transform: scale(1); } }

/* Chat window */
.cb-window {
  position: fixed;
  bottom: 6rem;
  right: 1.5rem;
  z-index: 9998;
  width: 380px;
  max-width: calc(100vw - 2rem);
  height: 560px;
  max-height: calc(100vh - 8rem);
  border-radius: 1rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px hsl(var(--border) / 0.5);
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.cb-window.cb-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* Header */
.cb-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  background: linear-gradient(135deg, hsl(var(--primary) / 0.12), hsl(280 80% 50% / 0.08));
  border-bottom: 1px solid hsl(var(--border) / 0.5);
  flex-shrink: 0;
}
.cb-header-left { display: flex; align-items: center; gap: 0.625rem; }
.cb-avatar {
  position: relative;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(36 100% 38%));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #000;
  flex-shrink: 0;
}
.cb-status-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  border: 2px solid hsl(var(--card));
}
.cb-name { font-size: 0.8125rem; font-weight: 700; color: white; line-height: 1.2; }
.cb-status { font-size: 0.6875rem; color: #22c55e; font-weight: 500; }
.cb-header-actions { display: flex; gap: 0.25rem; }
.cb-header-btn {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  border: none;
  background: hsl(var(--secondary));
  color: hsl(var(--muted-foreground));
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}
.cb-header-btn:hover { background: hsl(var(--muted)); color: white; }

/* Messages area */
.cb-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  scroll-behavior: smooth;
}
.cb-messages::-webkit-scrollbar { width: 4px; }
.cb-messages::-webkit-scrollbar-track { background: transparent; }
.cb-messages::-webkit-scrollbar-thumb { background: hsl(var(--border)); border-radius: 4px; }

/* Bubbles */
.cb-bubble {
  max-width: 85%;
  animation: cbBubbleIn 0.3s ease-out;
}
@keyframes cbBubbleIn {
  0% { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}
.cb-bot { align-self: flex-start; }
.cb-user { align-self: flex-end; }

.cb-bubble-content {
  padding: 0.625rem 0.875rem;
  border-radius: 1rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  word-break: break-word;
}
.cb-bot .cb-bubble-content {
  background: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border-bottom-left-radius: 0.25rem;
  border: 1px solid hsl(var(--border) / 0.4);
}
.cb-user .cb-bubble-content {
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(36 100% 42%));
  color: #000;
  border-bottom-right-radius: 0.25rem;
  font-weight: 500;
}
.cb-time {
  display: block;
  font-size: 0.625rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.25rem;
  padding: 0 0.25rem;
}
.cb-user .cb-time { text-align: right; }

/* Typing indicator */
.cb-typing {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.75rem 1rem;
  background: hsl(var(--secondary));
  border-radius: 1rem;
  border-bottom-left-radius: 0.25rem;
  border: 1px solid hsl(var(--border) / 0.4);
  width: fit-content;
}
.cb-typing span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: hsl(var(--muted-foreground));
  animation: cbTypingDot 1.4s infinite ease-in-out;
}
.cb-typing span:nth-child(2) { animation-delay: 0.2s; }
.cb-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes cbTypingDot {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

/* Quick replies */
.cb-quick {
  display: flex;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  overflow-x: auto;
  flex-shrink: 0;
  scrollbar-width: none;
}
.cb-quick::-webkit-scrollbar { display: none; }
.cb-quick:empty { display: none; }
.cb-quick-btn {
  flex-shrink: 0;
  padding: 0.375rem 0.75rem;
  border-radius: 2rem;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--secondary));
  color: hsl(var(--foreground));
  font-size: 0.6875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.cb-quick-btn:hover {
  border-color: hsl(var(--primary) / 0.5);
  background: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

/* Input area */
.cb-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid hsl(var(--border) / 0.5);
  background: hsl(var(--background));
  flex-shrink: 0;
}
.cb-input {
  flex: 1;
  background: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  border-radius: 0.625rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  color: hsl(var(--foreground));
  outline: none;
  transition: border-color 0.2s;
  font-family: inherit;
}
.cb-input::placeholder { color: hsl(var(--muted-foreground)); }
.cb-input:focus { border-color: hsl(var(--primary) / 0.5); }
.cb-send {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.625rem;
  border: none;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(36 100% 40%));
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
}
.cb-send:hover { transform: scale(1.05); box-shadow: 0 2px 12px hsl(var(--primary) / 0.4); }

/* Light theme overrides */
[data-theme="light"] .cb-window { box-shadow: 0 20px 60px rgba(0,0,0,0.15), 0 0 0 1px hsl(var(--border) / 0.3); }
[data-theme="light"] .cb-bot .cb-bubble-content { background: hsl(var(--secondary)); }
[data-theme="light"] .cb-name { color: hsl(var(--foreground)); }

/* Mobile responsive */
@media (max-width: 480px) {
  .cb-window {
    width: calc(100vw - 1rem);
    right: 0.5rem;
    bottom: 5rem;
    height: 420px;
    max-height: calc(100vh - 7rem);
    border-radius: 0.75rem;
  }
  .cb-toggle {
    bottom: 1rem;
    right: 1rem;
  }
}

/* ─── MOBILE POPUPS / MODALS ─── */
@media (max-width: 640px) {
  /* Auth Modal */
  .auth-modal { padding: 0.5rem; }
  .auth-modal-card {
    max-width: 100%;
    border-radius: 0.75rem;
    max-height: 90vh;
  }
  .auth-modal-card .p-6,
  .auth-modal-card .p-7 { padding: 1.25rem !important; }
  .auth-close { top: 0.5rem; right: 0.5rem; }

  /* Course Detail Modal — full screen on mobile */
  .course-modal { padding: 0; }
  .course-modal-content {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
    height: 100vh;
  }
  .course-modal-scroll { max-height: 100vh; }
  .course-modal-close { top: 0.5rem; right: 0.5rem; width: 2rem; height: 2rem; }
  .course-modal-content .p-5,
  .course-modal-content .sm\:p-7 { padding: 1rem !important; }

  /* Checkout Modal — full screen on mobile */
  .checkout-modal { padding: 0; }
  .checkout-modal-content {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
    height: 100vh;
  }
  .checkout-scroll { max-height: 100vh; }
  .checkout-scroll .px-6 { padding-left: 1rem !important; padding-right: 1rem !important; }
  .checkout-scroll .p-6 { padding: 1rem !important; }
  .checkout-scroll .grid-cols-2 { grid-template-columns: 1fr !important; }

  /* Guide Popup */
  .guide-overlay { padding: 0.75rem; }
  .guide-card {
    max-width: 100%;
    padding: 1.75rem 1.25rem 1.5rem;
    border-radius: 1rem;
  }

  /* Legal Popup */
  .legal-overlay { padding: 0.5rem; }
  .legal-card {
    max-width: 100%;
    max-height: 92vh;
    border-radius: 0.75rem;
  }
  .legal-header { padding: 1rem 1.25rem 0.75rem; }
  .legal-body { padding: 1rem 1.25rem 1.5rem; }

  /* Success Fullscreen */
  .success-fullscreen { padding: 1rem; }
  .success-card { max-width: 100%; }
  .success-icon-ring { width: 3.5rem; height: 3.5rem; margin-bottom: 1rem; }

  /* Contact Success Modal (inline Tailwind overrides) */
  #successModal > div { padding: 1.5rem !important; border-radius: 1rem !important; margin: 0.5rem; }
}

/* ─── REDUCED MOTION ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .reveal, .reveal-left, .reveal-right, .reveal-scale { opacity: 1; transform: none; }
  .marquee-track { animation: none; }
  .orb { animation: none; }
  .page-transition-overlay { transition-duration: 0.01ms !important; }
}