/* ============================================
   Yellow Garden — Shared Styles
   Multi-World Hub
   ============================================ */

:root {
  --black: #0a0a0a;
  --dark: #111111;
  --dark-2: #141414;
  --dark-3: #1a1a1a;
  --dark-4: #222222;
  --gold: #c9a84c;
  --gold-dim: #a08030;
  --gold-glow: rgba(201, 168, 76, 0.15);
  --cyan: #00d4ff;
  --cyan-glow: rgba(0, 212, 255, 0.15);
  --emerald: #2ecc71;
  --emerald-glow: rgba(46, 204, 113, 0.15);
  --purple: #9b59b6;
  --purple-glow: rgba(155, 89, 182, 0.15);
  --magenta: #e91e8b;
  --magenta-glow: rgba(233, 30, 139, 0.15);
  --coral: #e07850;
  --coral-glow: rgba(224, 120, 80, 0.15);
  --amber: #f0a030;
  --amber-glow: rgba(240, 160, 48, 0.15);
  --white: #f0f0ec;
  --gray: #888880;
  --gray-light: #b0b0a8;
  --gray-dark: #555;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --accent: var(--gold);
  --accent-glow: var(--gold-glow);
}

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

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

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.3s;
}

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

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

/* ---- World Accent Overrides ---- */
body.world-music { --accent: var(--gold); --accent-glow: var(--gold-glow); }
body.world-ai { --accent: var(--cyan); --accent-glow: var(--cyan-glow); }
body.world-realestate { --accent: var(--emerald); --accent-glow: var(--emerald-glow); }
body.world-finance { --accent: var(--purple); --accent-glow: var(--purple-glow); }
body.world-aimusic { --accent: var(--magenta); --accent-glow: var(--magenta-glow); }
body.world-showroom { --accent: var(--coral); --accent-glow: var(--coral-glow); }
body.world-lifestyle { --accent: var(--amber); --accent-glow: var(--amber-glow); }

/* ---- Navigation ---- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background 0.4s, padding 0.4s, backdrop-filter 0.4s;
}

.nav--scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(20px);
  padding: 12px 0;
}

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

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--gold) !important;
}

.nav-logo:hover {
  color: var(--white) !important;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: var(--gray-light);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ---- Language Toggle ---- */

.lang-toggle {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 6px 14px;
  cursor: pointer;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
  white-space: nowrap;
  flex-shrink: 0;
  border-radius: 4px;
  margin-left: 16px;
  display: inline-block;
  position: relative;
  z-index: 200;
}

.lang-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 255, 255, 0.12);
}

/* ---- Hero ---- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 50%, var(--dark-3) 0%, var(--black) 70%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, var(--accent-glow) 0%, transparent 60%);
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 24px;
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(3rem, 10vw, 7rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-title span {
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--gray-light);
  letter-spacing: 0.12em;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: inline-block;
  padding: 14px 40px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.3s, color 0.3s;
}

.hero-cta:hover {
  background: var(--accent);
  color: var(--black);
}

/* ---- Particle background (landing) ---- */

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0;
  animation: float-particle 6s ease-in-out infinite;
}

@keyframes float-particle {
  0%, 100% { opacity: 0; transform: translateY(0) scale(1); }
  50% { opacity: 0.6; transform: translateY(-80px) scale(1.5); }
}

/* ---- Sections ---- */

.section {
  padding: 120px 0;
}

.section--dark {
  background: var(--dark-2);
}

.section--darker {
  background: var(--dark);
}

.section-label {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  line-height: 1.15;
}

.section-intro {
  max-width: 700px;
  color: var(--gray-light);
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: 56px;
}

/* ---- World Cards (Landing) ---- */

.worlds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 64px;
}

.world-card {
  position: relative;
  background: var(--dark-2);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 48px 36px;
  transition: transform 0.4s, border-color 0.4s, box-shadow 0.4s;
  overflow: hidden;
  display: block;
  color: var(--white);
}

.world-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.4s;
}

.world-card:hover {
  transform: translateY(-6px);
  color: var(--white);
}

.world-card--music::before { background: radial-gradient(circle at 50% 100%, var(--gold-glow) 0%, transparent 70%); }
.world-card--music:hover { border-color: var(--gold); box-shadow: 0 8px 40px var(--gold-glow); }

.world-card--ai::before { background: radial-gradient(circle at 50% 100%, var(--cyan-glow) 0%, transparent 70%); }
.world-card--ai:hover { border-color: var(--cyan); box-shadow: 0 8px 40px var(--cyan-glow); }

.world-card--realestate::before { background: radial-gradient(circle at 50% 100%, var(--emerald-glow) 0%, transparent 70%); }
.world-card--realestate:hover { border-color: var(--emerald); box-shadow: 0 8px 40px var(--emerald-glow); }

.world-card--finance::before { background: radial-gradient(circle at 50% 100%, var(--purple-glow) 0%, transparent 70%); }
.world-card--finance:hover { border-color: var(--purple); box-shadow: 0 8px 40px var(--purple-glow); }

.world-card--aimusic::before { background: radial-gradient(circle at 50% 100%, var(--magenta-glow) 0%, transparent 70%); }
.world-card--aimusic:hover { border-color: var(--magenta); box-shadow: 0 8px 40px var(--magenta-glow); }

.world-card--showroom::before { background: radial-gradient(circle at 50% 100%, var(--coral-glow) 0%, transparent 70%); }
.world-card--showroom:hover { border-color: var(--coral); box-shadow: 0 8px 40px var(--coral-glow); }

.world-card--lifestyle::before { background: radial-gradient(circle at 50% 100%, var(--amber-glow) 0%, transparent 70%); }
.world-card--lifestyle:hover { border-color: var(--amber); box-shadow: 0 8px 40px var(--amber-glow); }

.world-card:hover::before {
  opacity: 1;
}

.world-card-icon {
  font-size: 2.5rem;
  margin-bottom: 24px;
  display: block;
}

.world-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.world-card p {
  color: var(--gray-light);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.world-card-arrow {
  color: var(--gray);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.3s, transform 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.world-card:hover .world-card-arrow {
  color: var(--white);
  transform: translateX(4px);
}

/* ---- Service Cards (World Pages) ---- */

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

.service-card {
  background: var(--dark-3);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 40px 32px;
  transition: border-color 0.3s, transform 0.3s;
}

.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.service-card .service-number {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--gray);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ---- Pricing ---- */

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

.price-card {
  position: relative;
  background: var(--dark-2);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 40px 32px;
  transition: border-color 0.3s, transform 0.3s;
}

.price-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.price-card--featured {
  border-color: var(--accent);
  background: linear-gradient(160deg, var(--dark-2), rgba(201, 168, 76, 0.05));
}

.price-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent);
  color: var(--black);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  letter-spacing: 0.02em;
}

.price-tag {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.price-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.price-detail {
  color: var(--gray-light);
  font-size: 0.9375rem;
  margin-bottom: 8px;
}

.price-note {
  color: var(--gray);
  font-size: 0.8125rem;
  font-style: italic;
}

/* ---- Steps / How-to ---- */

.steps {
  max-width: 720px;
}

.step {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.step:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.step-number {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  flex-shrink: 0;
  padding-top: 2px;
  letter-spacing: 0.05em;
}

.step p {
  color: var(--gray-light);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.step strong {
  color: var(--white);
  font-weight: 500;
}

/* ---- Labels / Credits ---- */

.labels {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.label-name {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--white);
}

.label-sep {
  color: var(--gray);
  font-weight: 300;
  font-size: 1.5rem;
}

/* ---- Genres ---- */

.genres {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.genre-tag {
  padding: 8px 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--gray-light);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  transition: border-color 0.3s, color 0.3s;
}

.genre-tag:hover {
  border-color: var(--accent);
  color: var(--white);
}

/* ---- Stats ---- */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---- Timeline (Founder) ---- */

.timeline {
  position: relative;
  max-width: 900px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 48px;
  padding-bottom: 64px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--black);
}

.timeline-date {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.timeline-item h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.timeline-item p {
  color: var(--gray-light);
  font-size: 1rem;
  line-height: 1.8;
}

/* ---- Quote / Highlight ---- */

.quote {
  border-left: 3px solid var(--accent);
  padding: 24px 32px;
  margin: 48px 0;
  background: var(--dark-2);
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--gray-light);
  font-style: italic;
  max-width: 800px;
}

/* ---- Coming Soon Badge ---- */

.badge-soon {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 32px;
}

/* ---- Contact Grid ---- */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.contact-card {
  padding: 40px 32px;
  background: var(--dark-3);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.contact-card h3 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.contact-card p {
  color: var(--gray-light);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.contact-link {
  font-size: 1.0625rem;
  font-weight: 500;
  word-break: break-word;
}

/* ---- CTA Section ---- */

.cta-section {
  text-align: center;
  padding: 100px 24px;
  background: linear-gradient(160deg, var(--dark-2), var(--black));
}

.cta-section h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--gray-light);
  font-size: 1rem;
  margin-bottom: 40px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- Back to Hub ---- */

.back-hub {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gray);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0;
  transition: color 0.3s;
}

.back-hub:hover {
  color: var(--white);
}

/* ---- Footer ---- */

.footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

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

.footer-brand {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--gold);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--gray);
  font-size: 0.8125rem;
  transition: color 0.3s;
}

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

.footer-copy {
  color: var(--gray);
  font-size: 0.75rem;
  width: 100%;
  text-align: center;
  margin-top: 16px;
}

/* ---- Fade-in Animation ---- */

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ---- Two Column Layout ---- */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.two-col p {
  color: var(--gray-light);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

/* ---- Responsive ---- */

@media (max-width: 900px) {
  .worlds-grid {
    grid-template-columns: 1fr 1fr;
  }

  .services-grid,
  .pricing-grid,
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .section {
    padding: 80px 0;
  }
}

@media (max-width: 640px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--dark);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 20px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    z-index: 105;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-toggle {
    display: flex;
    z-index: 110;
  }

  .lang-toggle {
    z-index: 200;
    position: absolute;
    top: 18px;
    right: 70px;
    display: inline-block !important;
  }

  .worlds-grid,
  .services-grid,
  .pricing-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-title {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .section {
    padding: 64px 0;
  }

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

  .footer-links {
    justify-content: center;
  }

  .footer-copy {
    margin-top: 8px;
  }

  .timeline::before {
    left: 0;
  }

  .timeline-item {
    padding-left: 32px;
    padding-bottom: 48px;
  }
}