/* ===== Design tokens ===== */
:root {
  --bg: hsl(230 65% 6%);
  --bg-2: hsl(230 55% 11%);
  --fg: hsl(210 40% 96%);
  --muted: hsl(215 25% 72%);
  --primary: hsl(355 85% 55%);
  --primary-glow: hsl(0 90% 62%);
  --accent: hsl(218 95% 60%);
  --accent-2: hsl(355 85% 55%);
  --border: hsl(225 40% 24%);
  --card: hsla(225, 45%, 14%, 0.7);
  --radius: 14px;
  --max: 1200px;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-pixel: 'Press Start 2P', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-display);
  color: var(--fg);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% 10%, hsl(218 90% 30% / 0.55), transparent 70%),
    radial-gradient(ellipse 60% 40% at 90% 80%, hsl(355 85% 40% / 0.35), transparent 70%),
    radial-gradient(ellipse 60% 40% at 10% 60%, hsl(230 70% 25% / 0.5), transparent 70%);
  background-attachment: fixed;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.text-gradient {
  background: linear-gradient(135deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s;
}
.btn--primary {
  background: linear-gradient(135deg, var(--primary), var(--accent-2));
  color: white;
  box-shadow: 0 10px 30px -10px hsl(355 85% 55% / 0.6);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 15px 40px -10px hsl(355 85% 55% / 0.8); }
.btn--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--fg);
}
.btn--ghost:hover { background: hsl(225 45% 12% / 0.6); }

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  background: hsl(230 65% 6% / 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid hsl(225 40% 24% / 0.5);
}
.nav__wordmark {
  font-family: var(--font-pixel);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--fg);
  transition: color 0.2s;
}
.nav__wordmark span { color: var(--primary); }
/*.nav__wordmark:hover { color: var(--accent); }*/
.nav__links { display: flex; gap: 28px; }
.nav__links a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted);
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--accent); }
.nav__cta { padding: 8px 18px; font-size: 0.85rem; }
.nav__burger { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; padding: 8px; }
.nav__burger span { width: 26px; height: 2px; background: var(--fg); border-radius: 2px; }

@media (max-width: 820px) {
  .nav__links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 20px 28px; background: var(--bg-2); border-bottom: 1px solid var(--border); }
  .nav__links.open { display: flex; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 80px 28px 40px;
  margin: 0 auto;
}
.hero__bg {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 70% at 35% 40%, hsl(355 85% 45% / 0.55) 0%, transparent 65%),
    radial-gradient(ellipse 60% 70% at 70% 30%, hsl(218 95% 45% / 0.55) 0%, transparent 65%),
    radial-gradient(ellipse 90% 60% at 50% 0%, hsl(230 70% 25% / 0.4), transparent 70%);
  filter: blur(50px);
  -webkit-mask-image: linear-gradient(180deg, black 0%, black 60%, transparent 100%);
  mask-image: linear-gradient(180deg, black 0%, black 60%, transparent 100%);
}
.hero > *:not(.hero__bg) { max-width: var(--max); margin-left: auto; margin-right: auto; }
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  min-height: 60vh;
}
.hero__inner--centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 7.5rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0;
  color: var(--fg);
  filter: drop-shadow(0 0 30px hsl(218 95% 60% / 0.35)) drop-shadow(0 0 40px hsl(355 85% 55% / 0.25));
}
.hero__eyebrow {
  font-family: var(--font-pixel);
  font-size: clamp(0.9rem, 1.4vw, 1.15rem);
  letter-spacing: 0.15em;
  color: var(--fg);
  margin: 0 0 18px;
  text-shadow: 0 0 20px hsl(218 95% 60% / 0.5);
}
.hero__badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.45em;
  font-weight: 600;
  color: var(--accent);
  vertical-align: middle;
  -webkit-text-fill-color: var(--accent);
  margin-left: 0.3em;
  filter: none;
}
.hero__date {
  margin-top: 28px;
  font-size: clamp(1.2rem, 2.4vw, 1.8rem);
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
}
.hero__star { color: var(--accent); margin: 0 12px; }
.hero__location {
  margin-top: 6px;
  color: var(--muted);
  font-size: 1rem;
  letter-spacing: 0.05em;
}
.hero__right { display: flex; flex-direction: column; gap: 28px; }
.hero__tagline {
  font-size: clamp(1.4rem, 2.8vw, 2.2rem);
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
}
.hero__tagline em { color: var(--accent); font-style: italic; font-weight: 800; }
.hero__gear {
  display: inline-block;
  animation: spin 4s linear infinite;
  color: var(--primary);
}
@keyframes spin { to { transform: rotate(360deg); } }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }

@media (max-width: 820px) {
  .hero__inner { grid-template-columns: 1fr; gap: 30px; }
}

/* ===== Countdown ===== */
.countdown {
  margin: 60px auto 12px;
  max-width: var(--max);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding: 28px;
  background: linear-gradient(180deg, hsl(225 55% 14% / 0.7), hsl(230 65% 8% / 0.7));
  border: 1px solid hsl(218 70% 40% / 0.4);
  border-radius: 24px;
  box-shadow: inset 0 1px 0 hsl(218 95% 70% / 0.08), 0 20px 60px -30px hsl(218 90% 30% / 0.7);
}
.countdown__unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 90px;
}
.countdown__num {
  font-family: var(--font-pixel);
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  color: var(--fg);
  text-shadow: 0 0 20px hsl(218 95% 60% / 0.5);
}
.countdown__label {
  margin-top: 8px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--muted);
}
.countdown__sep {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  color: hsl(355 85% 55% / 0.6);
  font-weight: 800;
  margin-bottom: 18px;
}
.countdown__caption {
  text-align: center;
  color: var(--muted);
  margin-top: 0;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ===== Sections ===== */
section { scroll-margin-top: 80px; }
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.section-title--center { text-align: center; margin-top: 80px; }
.section-sub {
  text-align: center;
  color: var(--muted);
  margin: -8px 0 40px;
}

/* ===== About ===== */
.about {
  max-width: var(--max);
  margin: 100px auto 0;
  padding: 0 28px;
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  align-items: center;
}
.about__logo {
  width: auto;
  height: 100%;
  object-fit: contain;
  filter: brightness(0) invert(1) drop-shadow(0 0 12px hsl(218 95% 60% / 0.25));
}
.about__copy p { color: var(--muted); margin: 0 0 14px; }

@media (max-width: 720px) {
  .about__grid { grid-template-columns: 1fr; gap: 24px; }
}

/* ===== Theme ===== */
.theme {
  max-width: var(--max);
  margin: 100px auto 0;
  padding: 0 28px;
}
.theme__inner {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.theme__copy { position: relative; z-index: 1; }
.theme__copy p { color: var(--muted); margin: 0 0 16px; }
.theme__lead {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 700;
  color: var(--fg) !important;
  margin: 0 0 18px;
}
.theme__questions {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.theme__questions li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  color: var(--fg);
  font-size: 0.98rem;
  line-height: 1.5;
}
.theme__dot {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent-2));
  color: white;
  box-shadow: 0 8px 24px -10px hsl(355 85% 55% / 0.7);
}
.theme__note {
  margin-top: 24px;
  padding: 14px 18px;
  background: hsl(218 70% 40% / 0.12);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  font-size: 0.92rem;
  font-style: italic;
  color: var(--muted);
}
.theme__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
}
.theme__globe {
  position: relative;
  z-index: 2;
  font-size: 6rem;
  filter: drop-shadow(0 0 30px hsl(218 95% 60% / 0.5));
  animation: float 4s ease-in-out infinite;
}
.theme__orbit {
  position: absolute;
  border: 1px solid hsl(218 95% 60% / 0.25);
  border-radius: 50%;
  animation: orbit 12s linear infinite;
}
.theme__orbit--1 { width: 160px; height: 160px; animation-duration: 14s; }
.theme__orbit--2 { width: 220px; height: 220px; animation-duration: 18s; animation-direction: reverse; }
.theme__orbit--3 { width: 280px; height: 280px; animation-duration: 22s; }
@keyframes orbit {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@media (max-width: 820px) {
  .theme__inner { grid-template-columns: 1fr; }
  .theme__visual { min-height: 200px; }
  .theme__globe { font-size: 4.5rem; }
  .theme__orbit--1 { width: 120px; height: 120px; }
  .theme__orbit--2 { width: 170px; height: 170px; }
  .theme__orbit--3 { width: 220px; height: 220px; }
}

@media (max-width: 720px) {
  .theme { padding: 0 18px; margin-top: 60px; }
  .theme__questions li { font-size: 0.92rem; }
}

/* ===== Stats ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.stat {
  background: var(--card);
  border: 1px solid hsl(218 70% 40% / 0.3);
  border-radius: var(--radius);
  padding: 28px 18px;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}
.stat:hover { transform: translateY(-4px); border-color: var(--accent); }
.stat__num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat__label {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ===== Tracks ===== */
.tracks { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.tracks__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.track {
  background: var(--card);
  border: 1px solid hsl(218 70% 40% / 0.3);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.track:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 20px 50px -20px hsl(355 85% 55% / 0.4);
}
.track__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}
.track h3 {
  margin: 0 0 8px;
  font-size: 1.3rem;
  font-weight: 800;
}
.track p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* ===== FAQ ===== */
.faq { max-width: 800px; margin: 0 auto; padding: 0 28px; }
.faq__list { display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  background: var(--card);
  border: 1px solid hsl(218 70% 40% / 0.3);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: border-color 0.2s;
}
.faq__item[open] { border-color: var(--accent); }
.faq__item summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 1.05rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--accent);
  transition: transform 0.2s;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { margin: 14px 0 0; color: var(--muted); }

/* ===== Sponsors ===== */
.sponsors { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.sponsors a { color: var(--accent); text-decoration: underline; }
.sponsors__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}
.sponsor {
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(225 45% 12% / 0.4);
  border: 1px dashed hsl(215 25% 72% / 0.3);
  border-radius: var(--radius);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ===== Apply CTA ===== */
.apply {
  max-width: 800px;
  margin: 100px auto 0;
  padding: 60px 28px;
  text-align: center;
  background: linear-gradient(135deg, hsl(230 55% 14% / 0.6), hsl(230 55% 12% / 0.6));
  border: 1px solid hsl(218 70% 40% / 0.4);
  border-radius: 28px;
  box-shadow: 0 30px 80px -30px hsl(355 85% 55% / 0.5);
}
.apply h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0 0 12px;
  font-weight: 800;
}
.apply p { color: var(--muted); margin: 0 0 28px; }
.apply__cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Why Join ===== */
.why { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.why__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.why__card {
  background: var(--card);
  border: 1px solid hsl(218 70% 40% / 0.3);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.why__card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 20px 50px -20px hsl(355 85% 55% / 0.4);
}
.why__icon { font-size: 2.6rem; margin-bottom: 10px; }
.why__card h3 { margin: 0 0 8px; font-size: 1.25rem; font-weight: 800; }
.why__card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* ===== Prizes ===== */
.prizes { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.prizes__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.prize {
  background: var(--card);
  border: 1px solid hsl(218 70% 40% / 0.3);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.prize:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: 0 20px 50px -20px hsl(355 85% 55% / 0.4); }
.prize__rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 48px;
  padding: 0 14px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 1.05rem;
  background: linear-gradient(135deg, var(--primary), var(--accent-2));
  color: white;
  margin-bottom: 14px;
  box-shadow: 0 10px 30px -12px hsl(355 85% 55% / 0.7);
}
.prize--gold .prize__rank { background: linear-gradient(135deg, hsl(218 95% 60%), hsl(0 90% 50%)); color: hsl(0 60% 12%); }
.prize--silver .prize__rank { background: linear-gradient(135deg, hsl(215 15% 82%), hsl(215 10% 62%)); color: hsl(0 60% 12%); }
.prize--bronze .prize__rank { background: linear-gradient(135deg, hsl(218 70% 55%), hsl(218 85% 40%)); color: white; }
.prize--gold { border-color: hsl(218 95% 60% / 0.6); box-shadow: 0 20px 50px -20px hsl(218 95% 55% / 0.4); }
.prize h3 { margin: 0 0 12px; font-size: 1.3rem; font-weight: 800; }
.prize ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 0.95rem; }
.prize li { margin-bottom: 6px; }

/* ===== People (Speakers / Judges / Mentors) ===== */
.people { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.people a { color: var(--accent); text-decoration: underline; }
.people__group-title {
  margin: 48px 0 18px;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: center;
}
.people__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.person {
  background: var(--card);
  border: 1px solid hsl(218 70% 40% / 0.3);
  border-radius: var(--radius);
  padding: 26px 22px;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.person:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 20px 50px -20px hsl(355 85% 55% / 0.4);
}
.person__avatar {
  width: 84px;
  height: 84px;
  margin: 0 auto 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  /*background: radial-gradient(circle at 35% 30%, hsl(218 95% 70% / 0.9), hsl(355 85% 55% / 0.8) 70%, hsl(225 55% 18% / 0.5) 100%);
  border: 2px solid hsl(218 95% 70% / 0.5);
  box-shadow: 0 10px 30px -10px hsl(355 85% 55% / 0.6), inset 0 1px 0 hsl(210 40% 96% / 0.4);*/
}
.profilepic {
  border-radius: 10%;
}
.person__name { margin: 0 0 4px; font-size: 1.15rem; font-weight: 800; }
.person__role {
  margin: 0 0 10px;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 700;
}
.person__bio { margin: 0; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 720px) {
  .people { padding: 0 18px; }
  .people__group-title { margin: 36px 0 14px; font-size: 0.95rem; }
}

/* ===== Schedule ===== */
.schedule { max-width: 900px; margin: 0 auto; padding: 0 28px; }
.schedule__day { margin-top: 36px; }
.schedule__day-title {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid hsl(218 70% 40% / 0.4);
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.schedule__list { display: flex; flex-direction: column; gap: 10px; }
.schedule__row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  align-items: start;
  background: var(--card);
  border: 1px solid hsl(218 70% 40% / 0.25);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: border-color 0.2s, transform 0.2s;
}
.schedule__row:hover { border-color: var(--accent); transform: translateX(4px); }
.schedule__time {
  font-weight: 700;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
}
.schedule__content { display: flex; flex-direction: column; gap: 2px; }
.schedule__content strong { font-weight: 700; font-size: 1rem; }
.schedule__content span { color: var(--muted); font-size: 0.85rem; }

@media (max-width: 600px) {
  .schedule__row { grid-template-columns: 1fr; gap: 6px; padding: 14px 16px; }
  .schedule__time { font-size: 0.85rem; }
}

/* ===== Footer ===== */
.footer {
  margin-top: 100px;
  padding: 40px 28px;
  border-top: 1px solid hsl(225 40% 24% / 0.4);
}
.footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer__logo { height: 40px; width: auto; }
.footer__links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__links a { color: var(--muted); font-size: 0.9rem; }
.footer__links a:hover { color: var(--accent); }
.footer__copy { color: var(--muted); font-size: 0.85rem; margin: 0; }

/* ===== Mobile responsiveness ===== */
@media (max-width: 720px) {
  .nav { padding: 12px 18px; }
  .nav__logo img { height: 32px; }
  .hero { padding: 40px 20px 20px; }
  .hero__inner { gap: 24px; min-height: auto; }
  .hero__title { font-size: clamp(3rem, 14vw, 4.5rem); }
  .hero__date { margin-top: 18px; font-size: 1.1rem; }
  .hero__cta .btn { flex: 1; min-width: 140px; }
  .countdown { margin: 36px 16px 8px; padding: 18px 12px; gap: 6px; border-radius: 18px; }
  .countdown__unit { min-width: 56px; }
  .countdown__num { font-size: 1.6rem; }
  .countdown__label { font-size: 0.6rem; letter-spacing: 0.18em; }
  .countdown__sep { font-size: 1.2rem; margin-bottom: 14px; }
  .about, .tracks, .why, .prizes, .schedule, .sponsors, .faq { padding: 0 18px; }
  .about { margin-top: 60px; }
  .section-title--center { margin-top: 60px; }
  .apply { margin: 60px 16px 0; padding: 40px 22px; border-radius: 22px; }
  .footer { margin-top: 60px; padding: 28px 18px; }
  .footer__inner { flex-direction: column; text-align: center; gap: 14px; }
  .footer__links { justify-content: center; }
}

@media (max-width: 420px) {
  .countdown__unit { min-width: 46px; }
  .countdown__num { font-size: 1.3rem; }
  .countdown__sep { font-size: 1rem; margin-bottom: 12px; }
  .hero__title { font-size: 2.6rem; }
  .hero__tagline { font-size: 1.25rem; }
}

/* ============ GUIDEBOOK PAGE ============ */
.guidebook-hero {
  position: relative;
  padding: 120px 24px 60px;
  text-align: center;
  overflow: hidden;
}
.guidebook {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 24px 100px;
  color: var(--fg, #e8ecff);
}
.guidebook__toc {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 20px 28px;
  margin-bottom: 48px;
}
.guidebook__toc h2 {
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin: 0 0 12px;
  opacity: 0.7;
}
.guidebook__toc ol {
  margin: 0;
  padding-left: 20px;
  columns: 2;
  column-gap: 32px;
}
.guidebook__toc a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.guidebook__toc a:hover {
  color: hsl(0 90% 65%);
  border-bottom-color: currentColor;
}
.guidebook__section {
  margin: 0 0 64px;
  scroll-margin-top: 100px;
}
.guidebook__section > p,
.guidebook__section > ul,
.guidebook__section > ol {
  line-height: 1.7;
  opacity: 0.92;
}
.gb-subhead {
  margin: 28px 0 10px;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: hsl(0 90% 70%);
}
.gb-list {
  padding-left: 22px;
  line-height: 1.7;
}
.gb-list li { margin: 4px 0; }
.gb-list--ordered > li { margin: 12px 0; }
.gb-list ul {
  margin-top: 6px;
  padding-left: 20px;
  opacity: 0.85;
}
.gb-note {
  font-size: 0.9rem;
  opacity: 0.65;
  font-style: italic;
  margin-top: 12px;
}
.gb-callout {
  background: linear-gradient(90deg, rgba(220,38,38,0.15), rgba(59,130,246,0.15));
  border-left: 3px solid hsl(0 90% 60%);
  padding: 14px 18px;
  border-radius: 10px;
  margin: 12px 0 20px;
}
.gb-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 8px;
}
.gb-chips span {
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9rem;
}
.table-wrap {
  overflow-x: auto;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.08);
  margin: 16px 0;
}
.gb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 640px;
}
.gb-table th, .gb-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  vertical-align: top;
}
.gb-table thead th {
  background: rgba(220,38,38,0.15);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: hsl(0 80% 80%);
}
.gb-table tbody tr:hover { background: rgba(255,255,255,0.02); }
.gb-table--rubric { min-width: 900px; font-size: 0.88rem; }
.gb-table--rubric tbody th {
  background: rgba(59,130,246,0.12);
  color: hsl(210 90% 80%);
  font-weight: 600;
  white-space: nowrap;
}
.gb-back {
  margin-top: 48px;
  text-align: center;
}
.gb-back a {
  color: hsl(0 90% 70%);
  text-decoration: none;
  font-weight: 500;
}
.gb-back a:hover { text-decoration: underline; }

@media (max-width: 720px) {
  .guidebook__toc ol { columns: 1; }
  .guidebook-hero { padding: 100px 20px 40px; }
}