:root {
  --font-sans: "Manrope", sans-serif;
  --font-serif: "Instrument Serif", serif;
  --bg-cream: #f4efe5;
  --bg-dark: #0d1110;
  --bg-deep: #101a17;
  --ink-dark: #111111;
  --ink-soft: rgba(17, 17, 17, 0.72);
  --ink-light: rgba(244, 239, 229, 0.86);
  --line-dark: rgba(17, 17, 17, 0.12);
  --line-light: rgba(244, 239, 229, 0.16);
  --accent-warm: #d76636;
  --accent-gold: #f0b851;
  --accent-green: #8adc72;
  --panel-dark: rgba(255, 255, 255, 0.06);
  --radius: 28px;
  --shadow: 0 24px 80px rgba(7, 10, 10, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  line-height: 1.5;
  position: relative;
  overflow-x: hidden;
}

body.home-page {
  background:
    radial-gradient(circle at top right, rgba(215, 102, 54, 0.2), transparent 26rem),
    linear-gradient(180deg, #efe5d6 0%, var(--bg-cream) 55%, #ebe2d0 100%);
  color: var(--ink-dark);
}

body.hackathon-page {
  background:
    radial-gradient(circle at top right, rgba(138, 220, 114, 0.14), transparent 24rem),
    radial-gradient(circle at bottom left, rgba(240, 184, 81, 0.14), transparent 22rem),
    linear-gradient(180deg, #0a0f0f 0%, var(--bg-dark) 100%);
  color: #f4efe5;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 120px 120px;
  mask-image: radial-gradient(circle at center, black 25%, transparent 82%);
}

.site-header {
  width: min(1180px, calc(100vw - 3rem));
  margin: 0 auto;
  padding: 1.25rem 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 2;
}

.brand-mark,
.site-nav a,
.cta-links a,
.text-link {
  text-decoration: none;
}

.brand-mark {
  color: inherit;
  font-weight: 800;
  letter-spacing: 0.18em;
  font-size: 0.84rem;
}

.site-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  color: inherit;
  opacity: 0.8;
}

main {
  width: min(1180px, calc(100vw - 3rem));
  margin: 0 auto;
  padding-bottom: 6rem;
}

section {
  position: relative;
}

.hero,
.hackathon-hero {
  min-height: calc(100svh - 5rem);
  display: grid;
  align-items: center;
  gap: 3rem;
  padding: 3rem 0 4rem;
}

.hero {
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 0.85fr);
}

.hackathon-hero {
  grid-template-columns: minmax(0, 0.96fr) minmax(320px, 0.75fr);
}

.eyebrow {
  margin: 0 0 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  opacity: 0.74;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 0.95;
}

h1 {
  max-width: 12ch;
  font-family: var(--font-serif);
  font-size: clamp(3.6rem, 9vw, 8rem);
  font-weight: 400;
  letter-spacing: -0.04em;
}

h2 {
  max-width: 14ch;
  font-family: var(--font-serif);
  font-size: clamp(2.3rem, 5vw, 4.3rem);
  font-weight: 400;
  letter-spacing: -0.04em;
}

h3 {
  font-size: 1.2rem;
  line-height: 1.1;
}

.hero-copy,
.section-intro,
.section-detail,
.focus-list,
.rules-list {
  position: relative;
  z-index: 1;
}

.hero-text,
.section-detail p,
.systems-grid p,
.focus-list p,
.rules-list p,
.status-panel p,
.leaderboard-empty,
.submission-form label,
.hackathon-spec p {
  font-size: 1.02rem;
  line-height: 1.72;
}

.hero-text,
.section-detail p,
.systems-grid p {
  max-width: 34rem;
}

.hero-actions,
.cta-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.95rem 1.45rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
  cursor: pointer;
  font: inherit;
}

.button:hover {
  transform: translateY(-2px);
}

.home-page .button-primary {
  background: var(--ink-dark);
  color: var(--bg-cream);
}

.home-page .button-secondary {
  border-color: rgba(17, 17, 17, 0.16);
  color: var(--ink-dark);
}

.hackathon-page .button-primary {
  background: var(--accent-green);
  color: #08100c;
}

.hackathon-page .button-secondary {
  color: #f4efe5;
  border-color: rgba(244, 239, 229, 0.2);
}

.hero-visual {
  min-height: 32rem;
  position: relative;
  border-radius: calc(var(--radius) + 12px);
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 30%, rgba(240, 184, 81, 0.24), transparent 18rem),
    linear-gradient(180deg, rgba(17, 17, 17, 0.08), rgba(17, 17, 17, 0.18));
  border: 1px solid rgba(17, 17, 17, 0.08);
  box-shadow: var(--shadow);
}

.orbital {
  position: absolute;
  border: 1px solid rgba(17, 17, 17, 0.18);
  border-radius: 999px;
  animation: drift 10s linear infinite;
}

.orbital-one {
  inset: 2rem 8rem auto 2rem;
  height: 16rem;
}

.orbital-two {
  inset: auto 2rem 2rem 6rem;
  height: 11rem;
  animation-duration: 15s;
}

.hero-panel {
  position: absolute;
  left: 2rem;
  width: min(18rem, calc(100% - 4rem));
  padding: 1.2rem 0;
  border-top: 1px solid rgba(17, 17, 17, 0.12);
}

.hero-panel span,
.hackathon-spec p,
.status-kicker {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  opacity: 0.68;
}

.hero-panel strong {
  display: block;
  font-size: 1.3rem;
  line-height: 1.15;
}

.hero-panel:first-of-type {
  top: 3rem;
}

.hero-panel-offset {
  top: 11.5rem;
  left: auto;
  right: 2rem;
}

.hero-panel-bottom {
  bottom: 2.5rem;
}

.split-section,
.focus-section,
.rules-section,
.submit-section,
.leaderboard-section,
.systems-section,
.final-cta {
  padding: 4.5rem 0;
  border-top: 1px solid var(--line-dark);
}

.hackathon-page .rules-section,
.hackathon-page .submit-section,
.hackathon-page .leaderboard-section {
  border-top: 1px solid var(--line-light);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 2rem;
}

.systems-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.8rem;
}

.systems-grid article {
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-dark);
}

.hackathon-page .systems-grid article {
  border-top: 1px solid var(--line-light);
}

.systems-grid span {
  display: inline-block;
  margin-bottom: 0.9rem;
  font-size: 0.82rem;
  opacity: 0.62;
}

.focus-section,
.rules-section,
.submit-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2rem;
}

.catalog-section,
.competition-panel {
  padding: 4.5rem 0;
  border-top: 1px solid var(--line-light);
}

.focus-strip {
  display: grid;
  gap: 0.8rem;
}

.text-link,
.cta-links a {
  color: inherit;
  font-weight: 700;
}

.text-link {
  margin-top: 1rem;
  display: inline-block;
}

.hackathon-spec {
  align-self: center;
  padding: 1.6rem;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.2);
}

.hackathon-spec pre {
  margin: 0;
  overflow-x: auto;
  font-size: 0.95rem;
}

.competition-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.3rem;
  margin-top: 2rem;
}

.competition-card {
  display: grid;
  gap: 1rem;
  padding: 1.4rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  min-height: 20rem;
}

.competition-card.is-selected {
  border-color: rgba(138, 220, 114, 0.42);
  box-shadow: 0 22px 60px rgba(8, 16, 12, 0.24);
}

.competition-card.is-disabled {
  opacity: 0.56;
}

.competition-card p {
  margin: 0;
}

.competition-card-meta,
.competition-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.competition-card-meta span,
.competition-pill,
.leaderboard-caption {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.82;
}

.competition-panel {
  display: grid;
  gap: 2rem;
}

.competition-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 2rem;
  align-items: start;
}

.competition-copy {
  display: grid;
  gap: 1.25rem;
}

.rule-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.75rem;
}

.rule-list li {
  line-height: 1.65;
}

.submission-form {
  display: grid;
  gap: 1rem;
}

.submission-form label {
  display: grid;
  gap: 0.55rem;
  font-weight: 600;
}

.submission-form input {
  width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: inherit;
  padding: 0.95rem 1rem;
  font: inherit;
}

.home-page .submission-form input {
  border-color: rgba(17, 17, 17, 0.12);
  background: rgba(255, 255, 255, 0.54);
}

.status-panel,
.leaderboard-shell {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--panel-dark);
  padding: 1.4rem;
}

.leaderboard-shell {
  display: grid;
  gap: 1rem;
}

.leaderboard-caption {
  width: fit-content;
}

.status-panel[data-tone="success"] {
  border-color: rgba(138, 220, 114, 0.36);
}

.status-panel[data-tone="error"] {
  border-color: rgba(215, 102, 54, 0.36);
}

.status-panel[data-tone="pending"] {
  border-color: rgba(240, 184, 81, 0.32);
}

.leaderboard-head,
.leaderboard-row {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr) 120px;
  gap: 1rem;
  align-items: center;
}

.leaderboard-head {
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.75rem;
  opacity: 0.72;
}

.leaderboard-row {
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.leaderboard-row:last-child {
  border-bottom: 0;
}

.final-cta h2 {
  max-width: 11ch;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 600ms ease,
    transform 600ms ease;
}

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

@keyframes drift {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 960px) {
  .hero,
  .hackathon-hero,
  .split-section,
  .focus-section,
  .rules-section,
  .submit-section,
  .competition-detail-grid {
    grid-template-columns: 1fr;
  }

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

  h1 {
    max-width: 11ch;
  }

  .hero,
  .hackathon-hero {
    min-height: auto;
    padding-top: 2rem;
  }
}

@media (max-width: 720px) {
  .site-header,
  main {
    width: min(100vw - 1.5rem, 1180px);
  }

  .site-header {
    padding-top: 0.8rem;
    gap: 1rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    gap: 1rem;
  }

  .hero-visual {
    min-height: 26rem;
  }

  .hero-panel,
  .hero-panel-offset,
  .hero-panel-bottom {
    left: 1.2rem;
    right: 1.2rem;
    width: auto;
  }

  .hero-panel-offset {
    top: 10rem;
  }

  .hero-panel-bottom {
    bottom: 1.4rem;
  }

  .leaderboard-head,
  .leaderboard-row {
    grid-template-columns: 42px minmax(0, 1fr) 88px;
    gap: 0.6rem;
  }

  .competition-card {
    min-height: auto;
  }
}