:root {
  --font-heading: 'Kalam', cursive;
  --font-body: 'Patrick Hand', cursive;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;

  --bg: #0d0d18;
  --bg-surface: #191930;
  --bg-surface-hover: #222245;
  --border: #3a3a5c;
  --text: #f0ede8;
  --text-muted: #b0aec0;
  --accent: #ff6b6b;
  --accent-hover: #ff8585;
  --secondary: #6ba3ff;
  --complete: #5ab88f;
  --planned: #807060;
  --shadow-color: #ff6b6b;
  --shadow-hard: 4px 4px 0 var(--shadow-color);
  --shadow-hard-lg: 6px 6px 0 var(--shadow-color);
  --dot-color: rgba(255, 255, 255, 0.04);
  --overlay-bg: rgba(13, 13, 24, 0.88);
  --modal-bg: #141428;
  --header-bg: rgba(13, 13, 24, 0.94);
  --code-bg: #111122;
}

[data-theme="light"] {
  --bg: #fdfbf7;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f5f0ea;
  --border: #e5e0d8;
  --text: #2d2d2d;
  --text-muted: #6b6b6b;
  --accent: #ff4d4d;
  --accent-hover: #e63e3e;
  --secondary: #2d5da1;
  --complete: #2e8b57;
  --planned: #a08060;
  --shadow-color: #2d2d2d;
  --shadow-hard: 4px 4px 0 var(--shadow-color);
  --shadow-hard-lg: 6px 6px 0 var(--shadow-color);
  --dot-color: rgba(0, 0, 0, 0.04);
  --overlay-bg: rgba(253, 251, 247, 0.85);
  --modal-bg: #ffffff;
  --header-bg: rgba(253, 251, 247, 0.92);
  --code-bg: #f0ece4;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  background-image: radial-gradient(var(--dot-color) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s, color 0.3s;
}

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

.wobbly {
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--secondary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px dashed var(--border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 4px;
}

.logo:hover {
  color: var(--accent);
}

.logo-icon {
  color: var(--accent);
  font-size: 1.1rem;
}

.header-nav {
  display: flex;
  gap: 24px;
  align-items: center;
}

.header-nav a {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.header-nav a:hover {
  color: var(--accent);
}

.theme-toggle {
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text);
  transition: background-color 0.2s, border-color 0.2s;
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0d0d18 0%, #141430 40%, #0d0d18 100%);
}

[data-theme="light"] .hero {
  background: linear-gradient(135deg, #0d0d18 0%, #141430 40%, #0d0d18 100%);
}

.hero-scene {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.hero-scene spline-viewer {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.hero-scene spline-viewer canvas {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover;
}

.hero-scene spline-viewer #logo {
  display: none !important;
}

.hero-scene spline-viewer a[href*="spline"] {
  display: none !important;
}

.hero-scene::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 300px;
  height: 80px;
  background: #0d0d18;
  z-index: 2;
  pointer-events: none;
}


.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(13,13,24,0.4) 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 80px 24px;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  border: 1px solid rgba(255, 107, 107, 0.3);
  background: rgba(255, 107, 107, 0.08);
  padding: 4px 16px;
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  margin-bottom: 24px;
  letter-spacing: 0.03em;
}

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

.hero-line1 {
  display: block;
  font-size: clamp(2.8rem, 7vw, 5rem);
  color: #e8e5df;
}

.hero-line2 {
  display: block;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  color: #ff6b6b;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: #9a9aaa;
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 32px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: #ff6b6b;
  line-height: 1;
}

.stat-label {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: #9a9aaa;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-body);
  font-size: 1.1rem;
  padding: 12px 28px;
  border: 2px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  cursor: pointer;
  display: inline-block;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: #e8e5df;
  border-color: #e8e5df;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.pathway-strip {
  overflow: hidden;
  padding: 20px 0;
  border-bottom: 2px dashed var(--border);
  border-top: 2px dashed var(--border);
  background: var(--bg-surface);
}

.pathway-track {
  display: flex;
  gap: 16px;
  align-items: center;
  white-space: nowrap;
  animation: scroll-pathway 20s linear infinite;
  width: max-content;
}

@keyframes scroll-pathway {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.pathway-tag {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  padding: 6px 16px;
  border: 2px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  color: var(--text);
  background: var(--bg);
}

.pathway-arrow {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
}

.section {
  padding: 80px 0;
  border-top: 2px dashed var(--border);
}

.section-title {
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 12px;
  color: var(--text);
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.why-card {
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  padding: 32px 24px;
  box-shadow: var(--shadow-hard);
  transition: transform 0.3s, box-shadow 0.3s;
}

.why-card:hover {
  transform: rotate(0deg) translate(-2px, -4px);
  box-shadow: var(--shadow-hard-lg);
}

.card-rotate-1 { transform: rotate(-1deg); }
.card-rotate-2 { transform: rotate(0.8deg); }
.card-rotate-3 { transform: rotate(-0.5deg); }
.card-rotate-4 { transform: rotate(1.2deg); }

.why-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.why-card h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
  color: var(--accent);
}

.why-card p {
  color: var(--text-muted);
  font-size: 1rem;
}

.phases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.phase-card {
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  padding: 24px 20px;
  cursor: pointer;
  box-shadow: var(--shadow-hard);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}

.phase-card.complete {
  border-top-color: var(--complete);
}

.phase-card.in-progress {
  border-top-color: var(--accent);
}

.phase-card.planned {
  border-top-color: var(--border);
}

.phase-card:hover {
  transform: rotate(0deg) translate(-2px, -4px) !important;
  box-shadow: var(--shadow-hard-lg);
}

.phase-card-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  margin-bottom: 4px;
}

.phase-card-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.phase-card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.4;
}

.phase-card-progress {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 6px;
}

.phase-card-progress-fill {
  height: 100%;
  background: var(--complete);
  border-radius: 3px;
  transition: width 0.6s ease;
}

.phase-card-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.phase-card-status {
  position: absolute;
  top: 12px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.phase-card-status.complete {
  color: var(--complete);
}

.phase-card-status.planned {
  color: var(--planned);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

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

.modal {
  background: var(--modal-bg);
  border: 2px solid var(--border);
  border-radius: 24px 24px 0 0;
  width: 100%;
  max-width: 700px;
  max-height: 80vh;
  overflow-y: auto;
  padding: 32px;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--accent);
}

.modal-header {
  margin-bottom: 24px;
}

.modal-phase-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
}

.modal-title {
  font-size: 1.8rem;
  margin-top: 4px;
  margin-bottom: 8px;
}

.modal-desc {
  color: var(--text-muted);
  font-size: 1rem;
}

.modal-lessons {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal-lesson {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  transition: background-color 0.2s, transform 0.2s;
}

.modal-lesson:hover {
  background: var(--bg-surface-hover);
  transform: translateX(4px);
}

.modal-lesson a {
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  flex: 1;
}

.modal-lesson a:hover {
  color: var(--accent);
}

.modal-lesson-status {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.modal-lesson-status.complete {
  background: var(--complete);
}

.modal-lesson-status.planned {
  background: var(--planned);
}

.modal-lesson-lang {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.modal-lesson-type {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--border);
  color: var(--text-muted);
  flex-shrink: 0;
}

.roadmap-progress {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.roadmap-bar {
  flex: 1;
  height: 12px;
  background: var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.roadmap-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--complete), var(--secondary));
  border-radius: 6px;
  transition: width 1s ease;
}

.roadmap-pct {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--complete);
  min-width: 50px;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.roadmap-item {
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.2s;
}

.roadmap-item:hover {
  transform: translate(-2px, -2px);
}

.roadmap-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.roadmap-dot.complete {
  background: var(--complete);
}

.roadmap-dot.planned {
  background: var(--planned);
}

.roadmap-name {
  color: var(--text);
  font-size: 0.8rem;
}

.steps-list {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.step-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-num {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--accent);
  border: 2px solid var(--accent);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  background: var(--bg-surface);
}

.step-body h3 {
  font-size: 1.2rem;
  margin-bottom: 4px;
  color: var(--text);
}

.step-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.step-connector {
  width: 2px;
  height: 24px;
  background: var(--border);
  margin-left: 23px;
  border-left: 2px dashed var(--border);
}

.glossary-callout {
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  padding: 40px 32px;
  display: flex;
  align-items: center;
  gap: 32px;
  box-shadow: var(--shadow-hard-lg);
  flex-wrap: wrap;
}

.glossary-callout-text {
  flex: 1;
  min-width: 260px;
}

.glossary-callout h3 {
  font-size: 1.6rem;
  margin-bottom: 8px;
  color: var(--accent);
}

.glossary-callout p {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.glossary-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.glossary-chip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  color: var(--text-muted);
  background: var(--bg);
}

.cta-section {
  padding: 60px 0 80px;
}

.cta-box {
  text-align: center;
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  padding: 48px 32px;
  box-shadow: var(--shadow-hard-lg);
}

.cta-box h2 {
  font-size: 2rem;
  margin-bottom: 8px;
}

.cta-box p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.cta-code {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--code-bg);
  border: 2px solid var(--border);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  padding: 12px 20px;
  max-width: 100%;
  overflow-x: auto;
}

.cta-code code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--secondary);
  white-space: nowrap;
}

.copy-btn {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px;
  color: var(--text-muted);
  transition: color 0.2s;
}

.copy-btn:hover {
  color: var(--accent);
}

.site-footer {
  border-top: 2px dashed var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-inner p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--accent);
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .header-nav {
    display: none;
  }

  .header-inner {
    height: 56px;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .hero-content {
    padding-bottom: 48px;
  }

  .section {
    padding: 48px 0;
  }

  .why-grid {
    grid-template-columns: 1fr;
  }

  .phases-grid {
    grid-template-columns: 1fr;
  }

  .roadmap-grid {
    grid-template-columns: 1fr;
  }

  .modal {
    padding: 24px 16px;
    max-height: 85vh;
  }

  .glossary-callout {
    flex-direction: column;
    text-align: center;
    padding: 28px 20px;
  }

  .cta-code {
    flex-direction: column;
    gap: 8px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }
}