:root {
  --bg: #1c1327;
  --bg-alt: #2b1a38;
  --panel: rgba(33, 20, 44, 0.82);
  --stroke: rgba(255, 255, 255, 0.08);
  --text: #f7f2f8;
  --muted: rgba(247, 242, 248, 0.72);
  --accent: #ffb48f;
  --accent-dark: #f39272;
  --ghost: rgba(255, 255, 255, 0.12);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Lexend", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 20% 0%, #3b2352, var(--bg) 55%);
  color: var(--text);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

.hero {
  min-height: 100vh;
  background: linear-gradient(120deg, rgba(26, 16, 39, 0.78), rgba(48, 22, 63, 0.4)), url("assets/banner2.jpg") center/cover;
  position: relative;
  padding: 0 7vw 8vh;
  display: flex;
  flex-direction: column;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 35% 22%, rgba(255, 180, 143, 0.22), transparent 45%);
  pointer-events: none;
}

.site-nav {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 0 1.5rem;
  z-index: 10;
}

.site-nav::before {
  content: "";
  position: absolute;
  inset: 0;
  height: 100%;
  background: linear-gradient(180deg, rgba(4, 5, 10, 0.9), transparent);
  z-index: -1;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  color: var(--text);
}

.brand img {
  width: 52px;
  height: auto;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.5));
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--text);
  opacity: 0.8;
}

.nav-links a:hover {
  opacity: 1;
}

.hero-content {
  margin-top: auto;
  max-width: 720px;
  z-index: 1;
  padding-bottom: 6vh;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.75rem;
  color: var(--muted);
}

.hero h1 {
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  margin: 0.2rem 0 1rem;
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0 2.5rem;
}

.btn {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.9rem 1.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.88rem;
  text-align: center;
}

.btn.primary {
  background: var(--accent);
  color: #2d0e12;
  border-color: var(--accent);
}

.btn.primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn.ghost {
  background: var(--ghost);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--text);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.15);
}

.btn.wide {
  width: 100%;
  justify-content: center;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 0;
}

.hero-stats dt {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-stats dd {
  margin: 0.35rem 0 0;
  font-size: 1.1rem;
  font-weight: 500;
}

main {
  display: flex;
  flex-direction: column;
  gap: 4rem;
  padding: 4rem 7vw 6rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 32px;
  padding: 2.5rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(14px);
}

.panel-content {
  max-width: 1200px;
  margin: 0 auto;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  align-items: start;
}

.definition-card,
.submit-card,
.contact-card {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 2rem;
}

.definition-card ul {
  padding-left: 1rem;
  list-style: square;
  color: var(--muted);
}

.definition-card li + li {
  margin-top: 0.6rem;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.rules-grid article {
  padding: 1.5rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  min-height: 220px;
}

.rules-grid h3 {
  margin-top: 0;
  font-size: 1.05rem;
}

.timeline {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  border-left: 2px solid rgba(255, 255, 255, 0.2);
}

.timeline li {
  position: relative;
  padding: 0 0 1.5rem 1.8rem;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 0.3rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(127, 240, 225, 0.8);
}

.timeline-date {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.submit {
  background: linear-gradient(135deg, rgba(41, 18, 50, 0.9), rgba(19, 10, 29, 0.92));
}

.steps {
  display: grid;
  gap: 1.2rem;
  margin-top: 1.5rem;
}

.steps div {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 1rem;
  align-items: start;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--ghost);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.small-note {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 1rem;
}

.prizes .prize-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.prize-grid article {
  border-radius: 24px;
  padding: 1.8rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
}

.prize-tag {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
}

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.sponsor-card {
  padding: 1.5rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sponsor-card img {
  filter: grayscale(1) brightness(0.8);
  max-height: 200px;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.8rem;
  color: var(--muted);
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  justify-content: space-between;
}

.site-footer {
  text-align: center;
  padding: 3rem 1rem 4rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .site-nav {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  main {
    padding: 3rem 6vw 5rem;
  }

  .panel {
    padding: 2rem;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 0 1.5rem 6vh;
  }

  main {
    padding: 2.5rem 1.5rem 4rem;
  }

  .panel {
    padding: 1.5rem;
  }

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

  .hero-cta {
    flex-direction: column;
  }
}