:root {
  --bg-0: #040913;
  --bg-1: #0a1222;
  --bg-2: #101b33;
  --panel: rgba(14, 23, 39, 0.84);
  --panel-strong: rgba(18, 31, 51, 0.9);
  --text: #e9f1ff;
  --text-soft: #c1d2ec;
  --muted: #90a2c0;
  --line: #243857;
  --accent: #42f5c8;
  --accent-2: #5bc3ff;
  --danger: #ff7d7d;
  --radius: 14px;
  --shadow: 0 12px 32px rgba(3, 9, 18, 0.45);
  --glow-cyan: rgba(91, 195, 255, 0.32);
  --glow-mint: rgba(66, 245, 200, 0.26);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  line-height: 1.65;
  color: var(--text);
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(1100px 550px at 88% -10%, rgba(91, 182, 255, 0.22), transparent 56%),
    radial-gradient(820px 480px at -10% 0%, rgba(66, 245, 200, 0.14), transparent 58%),
    linear-gradient(165deg, var(--bg-0), var(--bg-1) 52%, #090f1a);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

body::before {
  background-image:
    linear-gradient(rgba(91, 195, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 195, 255, 0.08) 1px, transparent 1px);
  background-size: 42px 42px, 42px 42px;
  mask-image: radial-gradient(circle at 50% 35%, black 25%, transparent 82%);
  animation: drift-grid 26s linear infinite;
}

body::after {
  z-index: -1;
  background:
    radial-gradient(circle at 12% 24%, rgba(66, 245, 200, 0.2) 0 1.2px, transparent 2px),
    radial-gradient(circle at 82% 17%, rgba(91, 195, 255, 0.24) 0 1.2px, transparent 2px),
    radial-gradient(circle at 68% 74%, rgba(66, 245, 200, 0.16) 0 1.1px, transparent 2px),
    radial-gradient(circle at 26% 82%, rgba(91, 195, 255, 0.18) 0 1px, transparent 2px);
  background-size: 280px 280px, 320px 320px, 300px 300px, 240px 240px;
  animation: pulse-particles 14s ease-in-out infinite alternate;
}

.site-shell {
  isolation: isolate;
}

.container {
  width: min(1060px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: clamp(4rem, 8vw, 6.5rem) 0 3rem;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.hero-title-wrap {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(91, 182, 255, 0.6), transparent);
}

.eyebrow {
  margin: 0 0 1rem;
  font-family: "Space Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(2.1rem, 5.6vw, 4rem);
  line-height: 1.08;
}

.gradient-text {
  background: linear-gradient(95deg, #dff5ff 10%, #8de7ff 48%, #7cf6d5 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 24px rgba(141, 231, 255, 0.24);
}

.hero-icon {
  width: clamp(84px, 11vw, 120px);
  aspect-ratio: 1;
  border: 1px solid rgba(91, 195, 255, 0.46);
  border-radius: 16px;
  background: linear-gradient(170deg, rgba(14, 24, 40, 0.9), rgba(10, 17, 30, 0.7));
  box-shadow:
    0 0 0 1px rgba(66, 245, 200, 0.08) inset,
    0 0 28px rgba(91, 195, 255, 0.24);
  padding: 0.7rem;
}

.hero-icon svg {
  width: 100%;
  height: 100%;
}

.hero-icon circle {
  fill: #88ebff;
  filter: drop-shadow(0 0 7px rgba(136, 235, 255, 0.55));
}

.hero-icon line {
  stroke: rgba(130, 247, 214, 0.82);
  stroke-width: 2.1;
  stroke-linecap: round;
}

.lead {
  margin: 1.2rem 0 0;
  max-width: 64ch;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: var(--text-soft);
}

.hero-meta {
  margin-top: 1.8rem;
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.meta-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(19, 31, 51, 0.68), rgba(12, 21, 35, 0.86));
  border-radius: calc(var(--radius) - 3px);
  padding: 0.9rem 1rem;
  box-shadow: var(--shadow), 0 0 14px rgba(66, 245, 200, 0.08);
}

.meta-label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.meta-card strong {
  display: block;
  margin-top: 0.12rem;
  font-size: 1rem;
}

.meta-note {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
}

main {
  padding: 1.5rem 0 2.5rem;
}

.panel {
  margin-top: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, var(--panel), rgba(9, 15, 27, 0.86));
  box-shadow: var(--shadow), 0 0 0 1px rgba(91, 195, 255, 0.08) inset;
  padding: clamp(1.1rem, 2.8vw, 1.55rem);
}

h2,
h3 {
  margin-top: 0;
  line-height: 1.25;
}

h2 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.35rem, 3.1vw, 1.7rem);
}

h3 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.08rem, 2.2vw, 1.2rem);
}

p {
  margin: 0.56rem 0 0;
}

.track-grid,
.review-grid,
.date-grid,
.faq-list {
  display: grid;
  gap: 0.9rem;
}

.track-grid,
.review-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.track-card,
.review-grid article,
.faq-list article {
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 3px);
  background: linear-gradient(180deg, rgba(19, 31, 51, 0.72), rgba(13, 23, 39, 0.87));
  padding: 0.95rem 1rem;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.track-card:hover,
.review-grid article:hover,
.faq-list article:hover {
  border-color: rgba(91, 195, 255, 0.52);
  box-shadow: 0 0 24px rgba(91, 195, 255, 0.13);
}

.track-card.primary {
  border-color: rgba(77, 224, 182, 0.45);
}

.track-card.experimental {
  border-color: rgba(255, 125, 125, 0.35);
}

.track-tag {
  margin: 0 0 0.35rem;
  font-family: "Space Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-2);
}

ul {
  margin: 0.5rem 0 0;
  padding-left: 1.15rem;
}

li {
  margin: 0.3rem 0;
}

.date-grid {
  margin-top: 0.35rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.date-item {
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  padding: 0.85rem 0.9rem;
  box-shadow: 0 0 0 1px rgba(66, 245, 200, 0.05) inset;
}

.date-item span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.date-item strong {
  display: block;
  margin-top: 0.18rem;
}

.plain-list {
  list-style: none;
  padding: 0;
  margin: 0.2rem 0 0;
}

.plain-list li {
  padding: 0.35rem 0;
  border-bottom: 1px dashed rgba(144, 162, 192, 0.28);
}

.plain-list li:last-child {
  border-bottom: 0;
}

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

.footer {
  padding: 0.8rem 0 2.25rem;
  color: var(--text-soft);
  font-size: 0.93rem;
  border-top: 1px solid rgba(91, 195, 255, 0.2);
}

.footer p {
  margin: 0.2rem 0;
}

.reveal {
  animation: fade-up 560ms ease both;
}

.reveal:nth-of-type(2) {
  animation-delay: 70ms;
}

.reveal:nth-of-type(3) {
  animation-delay: 120ms;
}

.reveal:nth-of-type(4) {
  animation-delay: 170ms;
}

.reveal:nth-of-type(5) {
  animation-delay: 220ms;
}

.reveal:nth-of-type(6) {
  animation-delay: 270ms;
}

.reveal:nth-of-type(7) {
  animation-delay: 320ms;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes drift-grid {
  from {
    transform: translateY(0);
  }

  to {
    transform: translateY(42px);
  }
}

@keyframes pulse-particles {
  0% {
    opacity: 0.34;
    transform: scale(1);
  }

  100% {
    opacity: 0.58;
    transform: scale(1.04);
  }
}

@media (max-width: 720px) {
  .hero {
    padding-top: 3.6rem;
  }

  .hero-title-wrap {
    align-items: center;
  }

  .hero-icon {
    width: 88px;
    padding: 0.58rem;
  }

  .hero-meta {
    grid-template-columns: 1fr;
  }

  .track-grid,
  .review-grid,
  .date-grid,
  .faq-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  body::after,
  .reveal {
    animation: none;
  }
}