/* ============================================================
   BUILD-A-WEB — Global Stylesheet
   Design System: Soft editorial aesthetic
   ============================================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=DM+Sans:wght@300;400;500;600&family=Fira+Code:wght@400;500&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --cream: #fdfaf6;
  --cream-dark: #fdf6ec;
  --sage: #8aab8a;
  --sage-light: #f0f4f0;
  --sage-mid: #d4e4d4;
  --dusty-rose: #c9808a;
  --rose-light: #fceef5;
  --lavender: #9b8ec4;
  --lavender-light: #ede8f5;
  --peach: #e8a87c;
  --peach-light: #fdf0e8;
  --charcoal: #2c2c2c;
  --gray-mid: #6b6b6b;
  --gray-light: #a8a8a8;
  --white: #ffffff;
  --card-shadow: 0 4px 24px rgba(0,0,0,0.06);
  --card-shadow-hover: 0 8px 40px rgba(0,0,0,0.10);

  /* Typography */
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'DM Sans', -apple-system, sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;

  /* Spacing */
  --section-padding: 80px;
  --container-max: 1200px;
  --container-pad: 24px;

  /* Border Radius */
  --radius-card: 16px;
  --radius-large: 24px;
  --radius-pill: 999px;

  /* Transitions */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--charcoal);
  background-color: var(--cream);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  background: none;
}

/* ============================================================
   ANIMATED GRADIENT BACKGROUNDS
   ============================================================ */

@keyframes gradientDrift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes blobFloat1 {
  0%   { transform: translateY(0px) rotate(0deg); }
  100% { transform: translateY(-18px) rotate(5deg); }
}

@keyframes blobFloat2 {
  0%   { transform: translateY(0px) rotate(0deg); }
  100% { transform: translateY(12px) rotate(-4deg); }
}

@keyframes blobFloat3 {
  0%   { transform: translateY(0px) translateX(0px); }
  100% { transform: translateY(-10px) translateX(8px); }
}

@keyframes blobFloat4 {
  0%   { transform: translateY(0px) translateX(0px); }
  100% { transform: translateY(15px) translateX(-6px); }
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes floatCard {
  0%   { transform: translateY(0px); }
  100% { transform: translateY(-8px); }
}

@keyframes pulseRing {
  0%   { box-shadow: 0 0 0 0 rgba(155, 142, 196, 0.5); }
  70%  { box-shadow: 0 0 0 12px rgba(155, 142, 196, 0); }
  100% { box-shadow: 0 0 0 0 rgba(155, 142, 196, 0); }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes progressFill {
  from { stroke-dashoffset: 251; }
}

@keyframes slideDown {
  from { opacity: 0; max-height: 0; }
  to   { opacity: 1; max-height: 1200px; }
}

@keyframes slideIn {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

@keyframes checkmark {
  0%   { stroke-dashoffset: 50; }
  100% { stroke-dashoffset: 0; }
}

/* ============================================================
   HERO BACKGROUND SYSTEM
   ============================================================ */

.hero {
  position: relative;
  overflow: hidden;
  min-height: 88vh;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* Layer 1: Animated gradient */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    #fdf6ec 0%,
    #e8f0e9 25%,
    #ede8f5 50%,
    #fceef5 75%,
    #fdf6ec 100%
  );
  background-size: 400% 400%;
  animation: gradientDrift 14s ease infinite;
}

/* Layer 4: Noise texture overlay */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  pointer-events: none;
}

/* Layer 2: Pattern overlays (per-page) */
.hero-pattern-dots .hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='28' height='28' viewBox='0 0 28 28' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='14' cy='14' r='1.5' fill='rgba(160,140,200,0.12)'/%3E%3C/svg%3E");
  background-size: 28px 28px;
}

.hero-pattern-lines .hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cline x1='0' y1='20' x2='20' y2='0' stroke='rgba(100,160,140,0.10)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 20px 20px;
}

.hero-pattern-cross .hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cline x1='10' y1='0' x2='10' y2='20' stroke='rgba(200,160,180,0.10)' stroke-width='1'/%3E%3Cline x1='0' y1='10' x2='20' y2='10' stroke='rgba(200,160,180,0.10)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 20px 20px;
}

.hero-pattern-plus .hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cline x1='12' y1='4' x2='12' y2='20' stroke='rgba(140,180,200,0.10)' stroke-width='1.5'/%3E%3Cline x1='4' y1='12' x2='20' y2='12' stroke='rgba(140,180,200,0.10)' stroke-width='1.5'/%3E%3C/svg%3E");
  background-size: 24px 24px;
}

.hero-pattern-scatter .hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='48' height='48' viewBox='0 0 48 48' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='8' cy='8' r='1.2' fill='rgba(155,142,196,0.12)'/%3E%3Ccircle cx='24' cy='16' r='0.8' fill='rgba(155,142,196,0.08)'/%3E%3Ccircle cx='40' cy='8' r='1.5' fill='rgba(155,142,196,0.10)'/%3E%3Ccircle cx='16' cy='36' r='1' fill='rgba(155,142,196,0.09)'/%3E%3Ccircle cx='40' cy='40' r='1.3' fill='rgba(155,142,196,0.11)'/%3E%3C/svg%3E");
  background-size: 48px 48px;
}

/* Layer 3: Blob shapes */
.blob {
  position: absolute;
  filter: blur(72px);
  opacity: 0.45;
  pointer-events: none;
  border-radius: 50% 40% 60% 30% / 40% 60% 30% 60%;
}

.blob-1 {
  width: 480px;
  height: 420px;
  background: #fceef5;
  top: -80px;
  left: -120px;
  animation: blobFloat1 8s ease-in-out infinite alternate;
}

.blob-2 {
  width: 380px;
  height: 360px;
  background: #e8f0e9;
  top: 30%;
  right: -80px;
  border-radius: 30% 60% 40% 70% / 60% 30% 70% 40%;
  animation: blobFloat2 10s ease-in-out infinite alternate;
}

.blob-3 {
  width: 300px;
  height: 280px;
  background: #ede8f5;
  bottom: -60px;
  left: 30%;
  border-radius: 60% 30% 50% 40% / 30% 60% 40% 50%;
  animation: blobFloat3 7s ease-in-out infinite alternate;
}

.blob-4 {
  width: 240px;
  height: 220px;
  background: #fdf0e8;
  top: 20%;
  left: 45%;
  border-radius: 40% 60% 30% 70% / 60% 40% 70% 30%;
  animation: blobFloat4 9s ease-in-out infinite alternate;
}

/* Particle canvas */
.particle-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
}

/* ============================================================
   NAVIGATION
   ============================================================ */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(253, 250, 246, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(138, 171, 138, 0.15);
  transition: box-shadow var(--transition);
}

.nav.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--charcoal);
  letter-spacing: -0.01em;
}

.nav-logo svg {
  color: var(--sage);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-mid);
  transition: color var(--transition);
  padding-bottom: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  right: 50%;
  height: 1.5px;
  background: var(--sage);
  transition: left var(--transition), right var(--transition);
}

.nav-link:hover {
  color: var(--charcoal);
}

.nav-link:hover::after,
.nav-link.active::after {
  left: 0;
  right: 0;
}

.nav-link.active {
  color: var(--charcoal);
  font-weight: 600;
}

.nav-link.active::before {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--sage);
}

.nav-cta {
  background: var(--sage);
  color: white !important;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  transition: all var(--transition);
  box-shadow: 0 2px 12px rgba(138,171,138,0.3);
}

.nav-cta::after {
  display: none;
}

.nav-cta:hover {
  background: #7a9b7a;
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(138,171,138,0.4);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  z-index: 110;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile side drawer */
.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--cream);
  z-index: 105;
  padding: 80px 32px 32px;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -8px 0 40px rgba(0,0,0,0.12);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-drawer.open {
  transform: translateX(0);
  animation: slideIn 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-drawer .drawer-link {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--charcoal);
  padding: 12px 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: color var(--transition);
}

.nav-drawer .drawer-link:hover,
.nav-drawer .drawer-link.active {
  color: var(--sage);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.25);
  z-index: 104;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.nav-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer-wave {
  display: block;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  margin-bottom: -1px;
}

.footer {
  background: var(--sage-light);
  padding: 60px 0 0;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='28' height='28' viewBox='0 0 28 28' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='14' cy='14' r='1.2' fill='rgba(100,140,100,0.08)'/%3E%3C/svg%3E");
  background-size: 28px 28px;
  pointer-events: none;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  position: relative;
  z-index: 1;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--gray-mid);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  color: var(--gray-mid);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--charcoal);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--gray-mid);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.footer-contact-item i {
  color: var(--sage);
  width: 16px;
}

.footer-bottom {
  margin-top: 48px;
  border-top: 1px solid rgba(138,171,138,0.2);
  padding: 20px var(--container-pad);
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.footer-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--gray-mid);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--gray-light);
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--sage);
  color: white;
  box-shadow: 0 2px 16px rgba(138,171,138,0.35);
}

.btn-primary:hover {
  background: #7a9b7a;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(138,171,138,0.45);
}

.btn-secondary {
  background: transparent;
  color: var(--sage);
  border-color: var(--sage);
}

.btn-secondary:hover {
  background: var(--sage);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 18px rgba(138,171,138,0.3);
}

.btn-rose {
  background: var(--dusty-rose);
  color: white;
  box-shadow: 0 2px 16px rgba(201,128,138,0.3);
}

.btn-rose:hover {
  background: #b87080;
  transform: translateY(-2px);
}

.btn-sm {
  font-size: 0.82rem;
  padding: 8px 18px;
}

/* ============================================================
   CONTAINERS & LAYOUT
   ============================================================ */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: var(--section-padding) 0;
}

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

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 12px;
  padding: 6px 16px;
  background: rgba(138,171,138,0.12);
  border-radius: var(--radius-pill);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--gray-mid);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================================
   CARDS
   ============================================================ */

.card {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--card-shadow);
  transition: all var(--transition);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.card-accent-left {
  border-left: 3px solid var(--sage);
}

.card-accent-rose {
  border-left: 3px solid var(--dusty-rose);
}

.card-accent-lavender {
  border-left: 3px solid var(--lavender);
}

.card-accent-peach {
  border-left: 3px solid var(--peach);
}

/* Lesson Cards */
.lesson-card .card-header {
  height: 80px;
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.lesson-card .card-body {
  padding: 24px;
}

.lesson-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--charcoal);
}

.lesson-card p {
  font-size: 0.9rem;
  color: var(--gray-mid);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* Feature Cards */
.feature-card {
  padding: 32px 28px;
}

.feature-card .feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--charcoal);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-mid);
  line-height: 1.7;
}

/* ============================================================
   BADGE / PILL COMPONENTS
   ============================================================ */

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.03em;
}

.badge-sage {
  background: rgba(138,171,138,0.15);
  color: #5a8a5a;
}

.badge-rose {
  background: rgba(201,128,138,0.13);
  color: #a06070;
}

.badge-lavender {
  background: rgba(155,142,196,0.13);
  color: #7060a8;
}

.badge-peach {
  background: rgba(232,168,124,0.15);
  color: #c07040;
}

.badge-beginner {
  background: rgba(138,171,138,0.15);
  color: #5a8a5a;
}

.badge-intermediate {
  background: rgba(232,168,124,0.15);
  color: #c07040;
}

.badge-advanced {
  background: rgba(201,128,138,0.13);
  color: #a06070;
}

/* ============================================================
   SECTION BACKGROUND VARIANTS
   ============================================================ */

.bg-cream {
  background: var(--cream-dark);
  position: relative;
}

.bg-cream::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='28' height='28' viewBox='0 0 28 28' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='14' cy='14' r='1.2' fill='rgba(160,140,200,0.07)'/%3E%3C/svg%3E");
  background-size: 28px 28px;
  pointer-events: none;
}

.bg-sage {
  background: var(--sage-light);
  position: relative;
}

.bg-sage::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cline x1='0' y1='20' x2='20' y2='0' stroke='rgba(100,160,140,0.07)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 20px 20px;
  pointer-events: none;
}

.bg-lavender {
  background: #f4f1fa;
  position: relative;
}

.bg-lavender::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='28' height='28' viewBox='0 0 28 28' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='14' cy='14' r='1.2' fill='rgba(155,142,196,0.10)'/%3E%3C/svg%3E");
  background-size: 28px 28px;
  pointer-events: none;
}

.bg-white {
  background: var(--white);
}

/* Blob section decorations */
.section-blob {
  position: absolute;
  filter: blur(60px);
  opacity: 0.3;
  pointer-events: none;
  border-radius: 50% 40% 60% 30% / 40% 60% 30% 60%;
}

.section-blob-1 {
  width: 300px;
  height: 280px;
  background: #e8f0e9;
  top: -40px;
  right: -80px;
}

.section-blob-2 {
  width: 240px;
  height: 220px;
  background: #ede8f5;
  bottom: -60px;
  left: -60px;
}

/* ============================================================
   WAVY DIVIDERS
   ============================================================ */

.wave-divider {
  display: block;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  margin-bottom: -1px;
}

/* ============================================================
   INTERSECTION OBSERVER ANIMATIONS
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   MODALS
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(44, 44, 44, 0.5);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-large);
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition);
  position: relative;
}

.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 28px 32px 20px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0,0,0,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition);
  border: none;
  font-size: 1rem;
  color: var(--gray-mid);
}

.modal-close:hover {
  background: rgba(0,0,0,0.1);
}

.modal-body {
  padding: 28px 32px 32px;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 90;
  background: var(--sage);
  color: white;
  border: none;
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  font-size: 0.82rem;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(138,171,138,0.4);
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.back-to-top:hover {
  background: #7a9b7a;
  transform: translateY(-2px);
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--charcoal);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid rgba(0,0,0,0.1);
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--charcoal);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--sage);
  box-shadow: 0 0 0 3px rgba(138,171,138,0.15);
}

/* ============================================================
   CODE BLOCKS
   ============================================================ */

.code-block {
  background: #1e2030;
  border-radius: 12px;
  overflow: hidden;
}

.code-block-header {
  background: var(--sage);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
}

.code-block pre {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: #e0e6f0;
  overflow-x: auto;
  white-space: pre;
}

.code-block .kw { color: #c792ea; }
.code-block .tag { color: #80cbc4; }
.code-block .attr { color: #ffcb6b; }
.code-block .str { color: #c3e88d; }
.code-block .cm  { color: #676e95; font-style: italic; }

/* ============================================================
   HERO CONTENT LAYOUT
   ============================================================ */

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  min-height: 88vh;
  padding: 120px 0 80px;
}

.hero-text .hero-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 20px;
  padding: 6px 16px;
  background: rgba(138,171,138,0.12);
  border-radius: var(--radius-pill);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--charcoal);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--gray-mid);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Decorative SVG elements */
.hero-decoration {
  position: absolute;
  pointer-events: none;
}

.hero-deco-star {
  top: 20%;
  left: -40px;
  opacity: 0.4;
}

.hero-deco-circle {
  top: 60%;
  left: -20px;
  opacity: 0.3;
}

.hero-deco-squiggle {
  top: 15%;
  right: 48%;
  opacity: 0.25;
}

/* Floating code card */
.hero-code-card {
  background: var(--white);
  border-radius: var(--radius-large);
  box-shadow: 0 20px 60px rgba(0,0,0,0.12);
  overflow: hidden;
  animation: floatCard 4s ease-in-out infinite alternate;
  max-width: 380px;
  margin-left: auto;
}

/* ============================================================
   STATS BAR
   ============================================================ */

.stats-bar {
  background: var(--cream-dark);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.stats-bar::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 40px,
    rgba(138,171,138,0.05) 40px,
    rgba(138,171,138,0.05) 41px
  );
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item .stat-number {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--charcoal);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item .stat-label {
  font-size: 0.88rem;
  color: var(--gray-mid);
  font-weight: 500;
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */

.testimonial-card {
  padding: 32px;
  position: relative;
}

.testimonial-card .quote-mark {
  position: absolute;
  top: 20px;
  left: 24px;
  font-family: var(--font-serif);
  font-size: 5rem;
  line-height: 1;
  color: var(--sage);
  opacity: 0.2;
  pointer-events: none;
  user-select: none;
}

.testimonial-card p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--charcoal);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
  padding-top: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 0.9rem;
  color: white;
  flex-shrink: 0;
}

.author-info .name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--charcoal);
}

.author-info .grade {
  font-size: 0.8rem;
  color: var(--gray-mid);
}

/* ============================================================
   GRID LAYOUTS
   ============================================================ */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

/* ============================================================
   FILTER PILLS
   ============================================================ */

.filter-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}

.filter-pill {
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border: 1.5px solid rgba(0,0,0,0.1);
  background: var(--white);
  color: var(--gray-mid);
  transition: all var(--transition);
}

.filter-pill:hover {
  border-color: var(--sage);
  color: var(--sage);
}

.filter-pill.active {
  background: var(--sage);
  border-color: var(--sage);
  color: white;
  box-shadow: 0 2px 12px rgba(138,171,138,0.3);
}

/* ============================================================
   SESSION CARDS (Schedule)
   ============================================================ */

.session-card .session-header {
  height: 72px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
}

.session-card .session-header i {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
}

.session-card .session-header .session-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255,255,255,0.95);
}

.session-card .session-body {
  padding: 20px;
}

.session-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.session-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--gray-mid);
}

.session-meta-item i {
  width: 14px;
  color: var(--sage);
  font-size: 0.8rem;
}

/* ============================================================
   CALENDAR WIDGET
   ============================================================ */

.calendar-widget {
  background: var(--white);
  border-radius: var(--radius-large);
  box-shadow: var(--card-shadow);
  padding: 28px;
  max-width: 380px;
  width: 100%;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.calendar-header h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
}

.calendar-nav-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--cream);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--charcoal);
  transition: background var(--transition);
}

.calendar-nav-btn:hover {
  background: var(--sage-mid);
}

.calendar-days-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 8px;
}

.calendar-day-name {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 0;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-day {
  aspect-ratio: 1;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  color: var(--charcoal);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  font-weight: 400;
}

.cal-day:hover {
  background: var(--sage-light);
}

.cal-day.other-month {
  color: var(--gray-light);
}

.cal-day.today {
  font-weight: 700;
  color: var(--sage);
}

.cal-day.has-session::after {
  content: '';
  position: absolute;
  bottom: 3px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--sage);
}

.cal-day.selected {
  background: var(--sage);
  color: white;
}

.cal-day.selected::after {
  background: white;
}

.cal-day.empty {
  pointer-events: none;
}

.calendar-sessions-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  margin-top: 16px;
  border-top: 1px solid rgba(0,0,0,0.06);
}

.calendar-sessions-panel.open {
  max-height: 400px;
  padding-top: 16px;
}

.cal-session-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 0;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.cal-session-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}

.cal-session-info .title {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--charcoal);
  margin-bottom: 2px;
}

.cal-session-info .time {
  font-size: 0.78rem;
  color: var(--gray-mid);
}

/* ============================================================
   DASHBOARD COMPONENTS
   ============================================================ */

.welcome-banner {
  padding: 28px 32px;
  background: var(--white);
  border-radius: var(--radius-large);
  border-left: 4px solid var(--sage);
  box-shadow: var(--card-shadow);
}

.welcome-banner h2 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.welcome-banner .date {
  color: var(--gray-mid);
  font-size: 0.9rem;
}

/* Stat Cards with Progress Rings */
.stat-ring-card {
  padding: 28px;
  text-align: center;
}

.ring-container {
  position: relative;
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
}

.ring-svg {
  width: 80px;
  height: 80px;
  transform: rotate(-90deg);
}

.ring-track {
  fill: none;
  stroke: rgba(0,0,0,0.06);
  stroke-width: 6;
}

.ring-progress {
  fill: none;
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 201;
  stroke-dashoffset: 201;
  transition: stroke-dashoffset 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.ring-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--charcoal);
}

.stat-ring-card h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-mid);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.stat-ring-card .stat-val {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--charcoal);
}

/* Learning Path Timeline */
.learning-path {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: 40px 0 60px;
  -webkit-overflow-scrolling: touch;
}

.path-line {
  position: absolute;
  top: 50%;
  left: 60px;
  right: 60px;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--sage-mid) 0,
    var(--sage-mid) 8px,
    transparent 8px,
    transparent 16px
  );
  transform: translateY(-50%);
}

.path-node {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 2;
  flex-shrink: 0;
  width: 120px;
}

.path-node-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: default;
  transition: all var(--transition);
  position: relative;
}

.path-node-circle.completed {
  background: var(--sage);
  color: white;
  box-shadow: 0 4px 16px rgba(138,171,138,0.4);
}

.path-node-circle.current {
  background: white;
  color: var(--lavender);
  border: 3px solid var(--lavender);
  animation: pulseRing 2s ease infinite;
}

.path-node-circle.upcoming {
  background: white;
  color: var(--gray-light);
  border: 2px dashed var(--gray-light);
}

.path-node-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--charcoal);
  text-align: center;
  line-height: 1.3;
  max-width: 100px;
}

.path-node-label.muted {
  color: var(--gray-mid);
}

/* Path node tooltip */
.path-node[data-tooltip] {
  cursor: pointer;
}

.path-node-tooltip {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--charcoal);
  color: white;
  font-size: 0.78rem;
  padding: 6px 12px;
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.path-node:hover .path-node-tooltip {
  opacity: 1;
}

.path-node-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--charcoal);
}

/* Badge Cards */
.badge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.badge-card {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  position: relative;
  transition: all var(--transition);
}

.badge-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.badge-card-header {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  position: relative;
}

.badge-card-body {
  padding: 16px;
  background: var(--white);
  text-align: center;
}

.badge-card-body .badge-name {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--charcoal);
  margin-bottom: 4px;
}

.badge-card-body .badge-desc {
  font-size: 0.78rem;
  color: var(--gray-mid);
}

.badge-card.locked {
  opacity: 0.6;
  filter: grayscale(0.5);
}

.badge-lock-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.3);
}

.badge-lock-overlay i {
  color: var(--gray-mid);
  font-size: 1rem;
}

/* Activity Timeline */
.activity-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.activity-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(0,0,0,0.04);
  position: relative;
}

.activity-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}

.activity-content .title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--charcoal);
  margin-bottom: 2px;
}

.activity-content .time {
  font-size: 0.78rem;
  color: var(--gray-mid);
}

/* Quiz Results Table */
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.results-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gray-mid);
  background: var(--cream);
}

.results-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.results-table tr:nth-child(even) td {
  background: rgba(253,250,246,0.7);
}

.score-pill {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
}

.score-pass {
  background: rgba(138,171,138,0.15);
  color: #4a7a4a;
}

.score-fail {
  background: rgba(201,128,138,0.13);
  color: #a06070;
}

/* ============================================================
   RESOURCES COMPONENTS
   ============================================================ */

/* Search Bar */
.search-wrapper {
  max-width: 480px;
  margin: 0 auto 40px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 14px 48px 14px 20px;
  border-radius: var(--radius-pill);
  border: 1.5px solid rgba(0,0,0,0.1);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--charcoal);
  background: var(--white);
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  transition: all var(--transition);
  outline: none;
}

.search-input:focus {
  border-color: var(--sage);
  box-shadow: 0 4px 24px rgba(138,171,138,0.2);
  width: calc(100% + 16px);
  margin-left: -8px;
}

.search-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-mid);
  pointer-events: none;
}

/* Tabs */
.tabs-wrapper {
  display: flex;
  gap: 0;
  border-bottom: 2px solid rgba(0,0,0,0.06);
  margin-bottom: 40px;
}

.tab-btn {
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-mid);
  cursor: pointer;
  border: none;
  background: none;
  position: relative;
  transition: color var(--transition);
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--sage);
  transition: width var(--transition);
}

.tab-btn:hover {
  color: var(--charcoal);
}

.tab-btn.active {
  color: var(--sage);
  font-weight: 600;
}

.tab-btn.active::after {
  width: 100%;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* Accordion Lessons */
.accordion-item {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--card-shadow);
  margin-bottom: 12px;
  overflow: hidden;
  border-left: 3px solid var(--sage);
}

.accordion-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: background var(--transition);
  user-select: none;
}

.accordion-header:hover {
  background: rgba(138,171,138,0.04);
}

.accordion-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.accordion-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.accordion-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

.accordion-chevron {
  font-size: 0.8rem;
  color: var(--gray-mid);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.accordion-item.open .accordion-chevron {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-item.open .accordion-body {
  max-height: 2000px;
}

.accordion-content {
  padding: 0 24px 28px;
  border-top: 1px solid rgba(0,0,0,0.05);
}

.lesson-content h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--charcoal);
}

.lesson-content h3:first-child {
  margin-top: 20px;
}

.lesson-content p {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--gray-mid);
  margin-bottom: 16px;
}

.lesson-content ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 16px;
}

.lesson-content ul li {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--gray-mid);
  margin-bottom: 6px;
}

/* Video Cards */
.video-card {
  cursor: pointer;
}

.video-thumbnail {
  aspect-ratio: 16/9;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.video-play-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--charcoal);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  transition: all var(--transition);
}

.video-card:hover .video-play-btn {
  transform: scale(1.1);
  background: white;
}

.video-card .card-body {
  padding: 16px 20px;
}

.video-card h4 {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 6px;
}

.video-card .video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--gray-mid);
}

/* Quiz Components */
.quiz-container {
  max-width: 640px;
  margin: 0 auto;
}

.quiz-progress-bar {
  height: 4px;
  background: rgba(0,0,0,0.08);
  border-radius: 4px;
  margin-bottom: 32px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: var(--sage);
  border-radius: 4px;
  transition: width 0.4s ease;
}

.quiz-question {
  display: none;
}

.quiz-question.active {
  display: block;
  animation: fadeSlideUp 0.4s ease;
}

.quiz-question h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 24px;
  line-height: 1.4;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.quiz-option {
  padding: 14px 20px;
  border-radius: 12px;
  border: 1.5px solid rgba(0,0,0,0.1);
  background: var(--white);
  cursor: pointer;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  color: var(--charcoal);
  text-align: left;
  transition: all var(--transition);
}

.quiz-option:hover:not(:disabled) {
  border-color: var(--sage);
  background: rgba(138,171,138,0.05);
}

.quiz-option.correct {
  background: rgba(138,171,138,0.15);
  border-color: var(--sage);
  color: #3a6a3a;
}

.quiz-option.incorrect {
  background: rgba(201,128,138,0.12);
  border-color: var(--dusty-rose);
  color: #8a4050;
}

.quiz-option:disabled {
  cursor: default;
}

.quiz-nav {
  margin-top: 24px;
  display: flex;
  justify-content: flex-end;
}

.quiz-score-card {
  text-align: center;
  padding: 40px;
  display: none;
}

.quiz-score-card.visible {
  display: block;
  animation: fadeSlideUp 0.5s ease;
}

.quiz-score-number {
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 700;
  color: var(--sage);
  line-height: 1;
  margin-bottom: 8px;
}

.quiz-score-card h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.quiz-score-card p {
  color: var(--gray-mid);
  font-size: 0.95rem;
  margin-bottom: 28px;
}

/* Download Cards */
.download-card {
  padding: 24px;
}

.download-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.file-type-badge {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.file-html { background: rgba(232,168,124,0.2); color: #c06030; }
.file-css  { background: rgba(155,142,196,0.15); color: #6050a0; }
.file-js   { background: rgba(232,192,80,0.2); color: #a07000; }
.file-zip  { background: rgba(138,171,138,0.15); color: #3a6a3a; }
.file-pdf  { background: rgba(201,128,138,0.13); color: #a06070; }

.download-card h4 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 6px;
}

.download-card p {
  font-size: 0.85rem;
  color: var(--gray-mid);
  line-height: 1.6;
  margin-bottom: 16px;
}

.download-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.file-size {
  font-size: 0.78rem;
  color: var(--gray-light);
}

/* ============================================================
   ABOUT PAGE COMPONENTS
   ============================================================ */

/* Stat Callout */
.stat-callout {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  background: rgba(155,142,196,0.1);
  border: 1.5px solid rgba(155,142,196,0.25);
  border-radius: var(--radius-card);
  padding: 16px 24px;
  margin: 24px 0;
}

.stat-callout .stat-callout-number {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--lavender);
  white-space: nowrap;
}

.stat-callout .stat-callout-text {
  font-size: 0.85rem;
  color: var(--gray-mid);
  line-height: 1.5;
}

/* Timeline (horizontal) */
.timeline-h {
  position: relative;
  display: flex;
  gap: 0;
  overflow-x: auto;
  padding: 0 0 40px;
}

.timeline-h::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 24px;
  right: 24px;
  height: 2px;
  background: var(--sage-mid);
}

.timeline-h-item {
  flex: 1;
  min-width: 160px;
  padding: 0 12px;
  text-align: center;
  position: relative;
  padding-top: 56px;
}

.timeline-h-dot {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--sage);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--sage);
  z-index: 2;
}

.timeline-h-item .t-date {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--sage);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.timeline-h-item .t-title {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--charcoal);
  margin-bottom: 4px;
}

.timeline-h-item .t-desc {
  font-size: 0.78rem;
  color: var(--gray-mid);
  line-height: 1.5;
}

/* Persona Cards */
.persona-card {
  padding: 28px;
  border-radius: var(--radius-card);
  background: var(--white);
  box-shadow: var(--card-shadow);
  border-top: 3px solid var(--lavender);
}

.persona-card .persona-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.persona-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.2rem;
  color: white;
  flex-shrink: 0;
}

.persona-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.persona-card .persona-grade {
  font-size: 0.82rem;
  color: var(--gray-mid);
}

.persona-section {
  margin-bottom: 12px;
}

.persona-section h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lavender);
  margin-bottom: 6px;
}

.persona-section ul {
  list-style: disc;
  padding-left: 16px;
}

.persona-section ul li {
  font-size: 0.85rem;
  color: var(--gray-mid);
  margin-bottom: 3px;
  line-height: 1.5;
}

/* Design Decision Cards */
.decision-card {
  padding: 28px;
  border-radius: var(--radius-card);
  background: var(--white);
  box-shadow: var(--card-shadow);
  border-left: 3px solid var(--peach);
}

.decision-card .decision-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(232,168,124,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--peach);
  margin-bottom: 16px;
}

.decision-card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 10px;
}

.decision-card p {
  font-size: 0.87rem;
  color: var(--gray-mid);
  line-height: 1.7;
}

/* Gantt Chart */
.gantt-chart {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gantt-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.gantt-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--charcoal);
  min-width: 180px;
  flex-shrink: 0;
}

.gantt-track {
  flex: 1;
  height: 28px;
  background: rgba(0,0,0,0.04);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}

.gantt-bar {
  height: 100%;
  border-radius: 6px;
  position: absolute;
  top: 0;
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-size: 0.75rem;
  font-weight: 500;
  color: white;
  transition: width 1s ease;
}

/* KPI Cards */
.kpi-card {
  padding: 28px;
  border-radius: var(--radius-card);
  background: var(--white);
  box-shadow: var(--card-shadow);
  border-top: 3px solid var(--sage);
  transition: all var(--transition);
}

.kpi-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.kpi-card .kpi-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(138,171,138,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--sage);
  margin-bottom: 16px;
}

.kpi-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 4px;
}

.kpi-card .kpi-target {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--sage);
  margin-bottom: 10px;
  display: block;
}

.kpi-card p {
  font-size: 0.85rem;
  color: var(--gray-mid);
  line-height: 1.65;
}

/* Citation Cards */
.citation-card {
  padding: 20px 24px;
  border-radius: var(--radius-card);
  background: var(--white);
  box-shadow: var(--card-shadow);
  border-left: 3px solid var(--lavender);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.citation-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--lavender-light);
  color: var(--lavender);
  font-size: 0.78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.citation-content .citation-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--charcoal);
  margin-bottom: 4px;
}

.citation-content .citation-source {
  font-size: 0.8rem;
  color: var(--gray-mid);
  margin-bottom: 6px;
}

.citation-content .citation-text {
  font-size: 0.82rem;
  color: var(--gray-mid);
  line-height: 1.6;
  font-style: italic;
}

/* ============================================================
   RESPONSIVE STYLES
   ============================================================ */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 100px 0 60px;
    gap: 40px;
  }

  .hero-code-card {
    margin: 0 auto;
    max-width: 460px;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .badge-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 56px;
    --container-pad: 20px;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero-grid {
    padding: 80px 0 48px;
  }

  .grid-3,
  .grid-4,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .badge-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline-h {
    flex-direction: column;
  }

  .timeline-h::before {
    display: none;
  }

  .timeline-h-item {
    padding-top: 0;
    padding-left: 40px;
    text-align: left;
    min-width: auto;
  }

  .timeline-h-dot {
    top: 2px;
    left: 10px;
  }

  .gantt-label {
    min-width: 120px;
    font-size: 0.78rem;
  }

  .tabs-wrapper {
    overflow-x: auto;
  }

  .tab-btn {
    white-space: nowrap;
  }

  .learning-path {
    overflow-x: scroll;
    padding: 40px 20px 60px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.9rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }

  .filter-group {
    gap: 8px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .badge-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modal {
    border-radius: 20px 20px 0 0;
    align-self: flex-end;
  }

  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }
}