:root {
  color-scheme: dark;
  --font-main: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  --font-code: "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow: 0 24px 80px rgba(0,0,0,.32);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
code { font-family: var(--font-code); font-size: .92em; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.skip-link {
  position: absolute; left: -999px; top: 8px; padding: 10px 14px; background: var(--accent); color: var(--accent-text); z-index: 9999; border-radius: 8px;
}
.skip-link:focus { left: 8px; }
.site-header {
  position: sticky; top: 0; z-index: 1000; backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); transition: .25s ease;
}
.site-header.scrolled { box-shadow: var(--shadow-soft); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; }
.brand img { width: 46px; height: 46px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); padding: 6px; }
.brand strong { display: block; font-size: 1rem; letter-spacing: .02em; }
.brand em { display: block; font-style: normal; color: var(--muted); font-size: .82rem; margin-top: -4px; }
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-menu a { padding: 10px 12px; border-radius: 999px; color: var(--muted); font-weight: 650; font-size: .92rem; transition: .2s ease; }
.nav-menu a:hover, .nav-menu a:focus { color: var(--text); background: var(--nav-hover); outline: none; }
.nav-menu .nav-cta { background: var(--accent); color: var(--accent-text); box-shadow: var(--glow); }
.nav-menu .theme-switch { border: 1px solid var(--line); color: var(--text); }
.menu-toggle { display: none; width: 44px; height: 44px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; background: var(--text); margin: 5px 0; border-radius: 999px; transition: .2s ease; }

.hero {
  position: relative; min-height: 720px; display: flex; align-items: center; overflow: hidden;
  background-image: linear-gradient(110deg, var(--hero-overlay), var(--hero-overlay-2)), var(--hero-bg);
  background-size: cover; background-position: center;
}
.hero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 120px; background: linear-gradient(transparent, var(--bg)); pointer-events: none; }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 54px; padding: 86px 0; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: .2em; font-size: .78rem; font-weight: 800; margin: 0 0 12px; }
h1, h2, h3 { line-height: 1.08; margin: 0 0 16px; letter-spacing: -.035em; }
h1 { font-size: clamp(3rem, 8vw, 7.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.8rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 16px; }
.hero-lead { max-width: 720px; font-size: clamp(1.12rem, 2vw, 1.4rem); color: var(--text-soft); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0; }
.hero-meta span { border: 1px solid var(--line); background: var(--glass); padding: 10px 14px; border-radius: 999px; color: var(--text-soft); }
.hero-actions, .center { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 24px; }
.center { justify-content: center; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 13px 18px; border-radius: 999px; font-weight: 800; border: 1px solid transparent; transition: .2s ease; cursor: pointer; font-family: inherit; }
.button.primary { background: var(--accent); color: var(--accent-text); box-shadow: var(--glow); }
.button.ghost { border-color: var(--line); background: var(--glass); color: var(--text); }
.button:hover { transform: translateY(-2px); }
.terminal-card { border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--terminal); box-shadow: var(--shadow), var(--glow-soft); overflow: hidden; }
.terminal-bar { height: 48px; display: flex; align-items: center; gap: 8px; padding: 0 18px; border-bottom: 1px solid var(--line); }
.terminal-bar span { width: 12px; height: 12px; border-radius: 50%; background: var(--accent); opacity: .85; }
.terminal-card pre { margin: 0; padding: 30px; white-space: pre-wrap; color: var(--terminal-text); font-family: var(--font-code); font-size: clamp(.95rem, 1.4vw, 1.08rem); }
.section { padding: 96px 0; position: relative; }
.page-hero { padding: 112px 0 64px; background: var(--page-hero); border-bottom: 1px solid var(--line); }
.page-hero.compact h1 { font-size: clamp(2.6rem, 6vw, 5.4rem); max-width: 960px; }
.page-hero p { max-width: 820px; color: var(--text-soft); font-size: 1.12rem; }
.section-head { max-width: 850px; margin-bottom: 38px; }
.section-head p:not(.eyebrow) { color: var(--muted); font-size: 1.06rem; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-card { padding: 26px; border: 1px solid var(--line); background: var(--card); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.stat-card strong { display: block; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1; color: var(--accent); }
.stat-card span { color: var(--muted); font-weight: 700; }
.card-grid { display: grid; gap: 18px; }
.card-grid.three { grid-template-columns: repeat(3, 1fr); }
.module-card, .detail-panel, .timeline-day, .partner-card, .sponsor-slot, .schedule-day, .award-item {
  border: 1px solid var(--line); background: var(--card); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); position: relative; overflow: hidden;
}
.module-card { padding: 26px; min-height: 260px; display: flex; flex-direction: column; }
.module-card::before, .partner-card::before, .sponsor-slot::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--accent-gradient); transform: scaleX(.2); transform-origin: left; transition: .25s ease; }
.module-card:hover::before, .partner-card:hover::before, .sponsor-slot:hover::before { transform: scaleX(1); }
.module-card h2, .module-card h3 { font-size: 1.35rem; }
.module-card p { color: var(--muted); }
.module-card a { margin-top: auto; color: var(--accent); font-weight: 800; }
.module-id { display: inline-block; margin-bottom: 18px; color: var(--accent); font-family: var(--font-code); font-size: .82rem; }
.mini-list { padding-left: 18px; margin: 12px 0 20px; color: var(--muted); }
.split-section { background: var(--section-alt); border-block: 1px solid var(--line); }
.split-grid { display: grid; grid-template-columns: .95fr 1.05fr; align-items: center; gap: 42px; }
.placeholder-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.placeholder-logo, .partner-logo { min-height: 92px; border: 1px dashed var(--line-strong); border-radius: var(--radius-md); display: grid; place-items: center; text-align: center; color: var(--muted); background: var(--placeholder); padding: 16px; font-weight: 800; }
.timeline-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.timeline-day { padding: 26px; }
.timeline-day span { color: var(--accent); font-family: var(--font-code); font-weight: 800; }
.timeline-day p { color: var(--muted); }
.detail-grid, .form-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 22px; align-items: start; }
.detail-panel { padding: 30px; }
.detail-panel p { color: var(--muted); }
.check-list { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 28px; color: var(--text-soft); }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 900; }
.award-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.award-item { padding: 16px 18px; color: var(--text-soft); font-weight: 700; }
.sponsor-ladder { display: grid; gap: 16px; }
.sponsor-slot { padding: 24px; display: grid; grid-template-columns: 220px 1fr; gap: 24px; align-items: center; }
.sponsor-slot span { min-height: 90px; display: grid; place-items: center; border: 1px dashed var(--line-strong); border-radius: var(--radius-md); color: var(--muted); background: var(--placeholder); font-weight: 800; }
.sponsor-slot p { color: var(--muted); }
.partner-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.partner-card { padding: 22px; }
.partner-card h2 { font-size: 1.18rem; margin-top: 18px; }
.partner-card p { color: var(--muted); }
.schedule-wrap { display: grid; gap: 22px; }
.schedule-day { padding: 28px; }
.schedule-day header { display: flex; flex-wrap: wrap; align-items: baseline; gap: 14px; margin-bottom: 22px; }
.schedule-day header span { color: var(--accent); font-family: var(--font-code); font-weight: 900; }
.schedule-table { display: grid; gap: 10px; }
.schedule-row { display: grid; grid-template-columns: 90px 130px 1fr; gap: 16px; align-items: center; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--glass); }
.schedule-row strong { color: var(--accent); font-family: var(--font-code); }
.schedule-row span { color: var(--muted); font-weight: 800; }
.schedule-row p { margin: 0; }
.secure-form { display: grid; gap: 18px; }
.secure-form label { display: grid; gap: 8px; font-weight: 800; }
.secure-form input, .secure-form select, .secure-form textarea {
  width: 100%; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 13px 14px; background: var(--input); color: var(--text); font: inherit; outline: none;
}
.secure-form input:focus, .secure-form select:focus, .secure-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--focus); }
.honeypot { position: absolute; left: -9999px; height: 1px; overflow: hidden; }
.success-box { border: 1px solid var(--success); border-radius: var(--radius-md); padding: 18px; background: var(--success-bg); margin-bottom: 20px; }
.site-footer { border-top: 1px solid var(--line); background: var(--footer); padding: 54px 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr 1fr; gap: 28px; }
.footer-logo { width: 54px; height: 54px; border-radius: 16px; border: 1px solid var(--line); padding: 6px; background: var(--card); margin-bottom: 16px; }
.site-footer a { display: block; color: var(--muted); margin: 8px 0; }
.site-footer a:hover { color: var(--accent); }
.muted { color: var(--muted); }
.custom-cursor { position: fixed; width: 20px; height: 20px; border: 2px solid var(--cursor); border-radius: 50%; pointer-events: none; z-index: 9999; transform: translate(-50%, -50%); transition: width .18s ease, height .18s ease, background .18s ease, opacity .18s ease; opacity: 0; mix-blend-mode: difference; }
.custom-cursor.active { opacity: .9; }
.custom-cursor.hover { width: 42px; height: 42px; background: var(--cursor-soft); }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .12s; }
.matrix-canvas { position: fixed; inset: 0; pointer-events: none; opacity: var(--matrix-opacity); z-index: -1; }
.light-orbs { position: fixed; inset: 0; pointer-events: none; z-index: -1; overflow: hidden; }
.light-orbs span { position: absolute; border-radius: 50%; width: 260px; height: 260px; background: var(--orb); filter: blur(16px); animation: floatOrb 13s ease-in-out infinite; }
.light-orbs span:nth-child(1) { top: 8%; left: 6%; }
.light-orbs span:nth-child(2) { top: 35%; right: 8%; animation-delay: -4s; }
.light-orbs span:nth-child(3) { bottom: 4%; left: 35%; animation-delay: -7s; }
@keyframes floatOrb { 0%, 100% { transform: translate3d(0,0,0) scale(1); } 50% { transform: translate3d(34px,-28px,0) scale(1.08); } }

@media (max-width: 980px) {
  .menu-toggle { display: block; }
  .nav-menu { position: fixed; top: 76px; left: 20px; right: 20px; display: grid; padding: 18px; background: var(--menu-bg); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); transform: translateY(-18px); opacity: 0; visibility: hidden; transition: .2s ease; }
  .nav-menu.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .hero-grid, .split-grid, .detail-grid, .form-grid { grid-template-columns: 1fr; }
  .stats-grid, .card-grid.three, .timeline-grid, .partner-grid, .award-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { min-height: auto; }
  .sponsor-slot, .schedule-row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--max)); }
  .stats-grid, .card-grid.three, .timeline-grid, .partner-grid, .award-grid, .placeholder-wall { grid-template-columns: 1fr; }
  .hero-grid { padding: 64px 0; }
  .section { padding: 64px 0; }
  .custom-cursor { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
  .matrix-canvas, .light-orbs, .custom-cursor { display: none; }
  .reveal { opacity: 1; transform: none; }
}