:root {
  --bg: #08080c;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --stroke: rgba(255, 255, 255, 0.12);
  --text: #f5f7fb;
  --muted: rgba(245, 247, 251, 0.68);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 20%, rgba(129, 92, 255, 0.28), transparent 28%),
    radial-gradient(circle at 80% 10%, rgba(0, 214, 255, 0.22), transparent 24%),
    radial-gradient(circle at 85% 85%, rgba(255, 98, 170, 0.18), transparent 25%),
    linear-gradient(180deg, #090910 0%, #0e1016 55%, #08080c 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.page-shell {
  position: relative;
  min-height: 100vh;
}

.aurora {
  position: fixed;
  inset: -20%;
  pointer-events: none;
  filter: blur(90px);
  opacity: 0.55;
  z-index: 0;
}
.aurora::before,
.aurora::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  animation: floatGlow 15s ease-in-out infinite alternate;
}
.aurora::before {
  width: 38rem;
  height: 38rem;
  left: 8%;
  top: 6%;
  background: rgba(121, 83, 255, 0.34);
}
.aurora::after {
  width: 34rem;
  height: 34rem;
  right: 4%;
  bottom: 6%;
  animation-duration: 18s;
  background: rgba(0, 196, 255, 0.24);
}

@keyframes floatGlow {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(3%, -2%, 0) scale(1.08); }
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255,255,255,0.22), rgba(255,255,255,0.06));
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(18px);
}

.nav-links a {
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--muted);
  transition: 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
  background: rgba(255,255,255,0.08);
  outline: none;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 28px;
  padding: 34px 0 28px;
  align-items: stretch;
}

.hero-copy,
.hero-visual,
.card,
.track-detail-grid,
.track-sidebar {
  border: 1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(255,255,255,0.09), rgba(255,255,255,0.05));
  backdrop-filter: blur(26px);
  box-shadow: var(--shadow);
}

.hero-copy {
  border-radius: var(--radius-xl);
  padding: clamp(28px, 4vw, 48px);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  font-size: 0.92rem;
}

.hero h1,
.track-title {
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  line-height: 0.95;
  margin: 20px 0 16px;
  letter-spacing: -0.05em;
}

.hero p.lead,
.track-intro {
  color: var(--muted);
  font-size: clamp(1.02rem, 2vw, 1.18rem);
  line-height: 1.7;
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button,
.link-pill,
.platform-button {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  font: inherit;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button {
  padding: 14px 20px;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.button.primary {
  background: linear-gradient(135deg, #ffffff, #dbe7ff);
  color: #10111a;
  font-weight: 700;
}

.button.secondary {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.1);
}

.button:hover,
.link-pill:hover,
.platform-button:hover {
  transform: translateY(-1px);
}

.hero-visual {
  border-radius: var(--radius-xl);
  padding: 22px;
  display: grid;
  place-items: center;
}

.hero-stack {
  width: min(100%, 440px);
  aspect-ratio: 1 / 1.06;
  position: relative;
}

.hero-stack::before,
.hero-stack::after {
  content: "";
  position: absolute;
  inset: 14% 6%;
  border-radius: 34px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  transform-origin: center;
}
.hero-stack::before { transform: rotate(-8deg); }
.hero-stack::after { transform: rotate(8deg); }

.hero-cover {
  position: absolute;
  inset: 0;
  border-radius: 36px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.14);
  box-shadow: 0 40px 90px rgba(0,0,0,0.42);
}

.hero-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-badge {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  width: calc(100% - 30px);
  padding: 16px 18px;
  border-radius: 24px;
  background: rgba(8, 10, 17, 0.66);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(18px);
}

.hero-badge strong {
  font-size: 1rem;
  display: block;
}
.hero-badge span {
  color: var(--muted);
  font-size: 0.92rem;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  margin-bottom: 18px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.04em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.track-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  padding-bottom: 42px;
}

.card {
  border-radius: 28px;
  padding: 18px;
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 18px;
  min-height: 240px;
}

.card-cover {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  min-height: 200px;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-glow {
  position: absolute;
  inset: auto 12px 12px 12px;
  height: 68px;
  border-radius: 18px;
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.08);
}

.card-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}

.card-title {
  font-size: clamp(1.45rem, 2vw, 2rem);
  margin: 0;
  letter-spacing: -0.04em;
}

.card-subtitle,
.meta-row,
.card-description,
.track-meta,
.footer-copy {
  color: var(--muted);
}

.card-description {
  line-height: 1.65;
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.link-pill {
  padding: 11px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.inline-link {
  color: #fff;
  font-weight: 600;
}

.track-page {
  padding: 22px 0 56px;
}

.track-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) 380px;
  gap: 24px;
}

.track-detail-grid {
  border-radius: 32px;
  padding: clamp(22px, 4vw, 32px);
}

.track-header {
  display: grid;
  grid-template-columns: minmax(240px, 360px) 1fr;
  gap: 24px;
  align-items: center;
}

.track-cover-shell {
  position: relative;
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 40px 90px rgba(0,0,0,0.42);
  min-height: 260px;
}

.track-cover-shell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.track-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
}

.track-cta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.platform-button {
  min-height: 68px;
  border-radius: 22px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
}

.platform-button strong {
  display: block;
  font-size: 1rem;
}

.platform-button span {
  color: var(--muted);
  font-size: 0.92rem;
}

.track-sidebar {
  border-radius: 28px;
  padding: 22px;
  align-self: start;
  position: sticky;
  top: 20px;
}

.sidebar-card + .sidebar-card {
  margin-top: 16px;
}

.sidebar-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.sidebar-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.sidebar-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.mini-list {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.mini-track {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 12px;
  align-items: center;
  padding: 10px;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
}

.mini-track img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 14px;
}

.mini-track strong {
  display: block;
  font-size: 0.96rem;
}

.mini-track span {
  color: var(--muted);
  font-size: 0.86rem;
}

.footer {
  padding: 10px 0 34px;
}

.footer-panel {
  border-radius: 26px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,0.04);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  backdrop-filter: blur(16px);
}

.footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.muted-link {
  color: var(--muted);
}

.copy-toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  padding: 12px 16px;
  border-radius: 16px;
  background: rgba(8, 10, 17, 0.88);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(16px);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: 180ms ease;
  z-index: 20;
}
.copy-toast.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .hero,
  .track-layout,
  .track-header,
  .card {
    grid-template-columns: 1fr;
  }

  .track-sidebar {
    position: static;
  }

  .card-cover {
    min-height: 240px;
  }
}

@media (max-width: 820px) {
  .topbar,
  .footer-panel,
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    overflow-x: auto;
  }

  .track-grid,
  .track-cta-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 18px;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(calc(100% - 20px), var(--container));
  }

  .hero-copy,
  .hero-visual,
  .track-detail-grid,
  .track-sidebar,
  .card {
    border-radius: 24px;
  }

  .hero h1,
  .track-title {
    font-size: clamp(2.2rem, 14vw, 3.4rem);
  }

  .button,
  .platform-button,
  .link-pill {
    width: 100%;
    justify-content: space-between;
  }
}