/* ===== Custom Properties ===== */
:root {
  --cardinal: #8C1515;
  --cardinal-dark: #6B0F0F;
  --white: #FFFFFF;
  --light-gray: #F5F5F5;
  --dark: #1A1A1A;
  --cool-gray: #4D4F53;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --transition: 0.3s ease;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.mono { font-family: 'JetBrains Mono', monospace; }

/* ===== Utility ===== */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-alt { background: var(--light-gray); }
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
}
.section-intro {
  text-align: left;
  max-width: 720px;
  margin: 0 auto 48px;
  color: var(--cool-gray);
  font-size: 1.05rem;
}
.section-intro-secondary {
  margin-top: 16px;
  font-size: 0.95rem;
  opacity: 0.85;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-white { background: var(--white); color: var(--cardinal); }
.btn-outline { border: 2px solid var(--white); color: var(--white); background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.btn-cardinal { background: var(--cardinal); color: var(--white); }

/* ===== Nav ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.nav.scrolled {
  background: var(--cardinal);
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
  padding: 10px 0;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo { font-weight: 800; font-size: 1.15rem; color: var(--white); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  background: var(--white) !important;
  color: var(--cardinal) !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 600 !important;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cardinal);
  overflow: hidden;
  text-align: center;
  color: var(--white);
  padding: 120px 24px 80px;
}
.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background-image:
    linear-gradient(30deg, transparent 40%, rgba(255,255,255,0.5) 40%, rgba(255,255,255,0.5) 41%, transparent 41%),
    linear-gradient(150deg, transparent 40%, rgba(255,255,255,0.5) 40%, rgba(255,255,255,0.5) 41%, transparent 41%),
    linear-gradient(60deg, transparent 45%, rgba(255,255,255,0.3) 45%, rgba(255,255,255,0.3) 46%, transparent 46%);
  background-size: 80px 140px, 80px 140px, 120px 200px;
}
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
}
.hero-meta {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  opacity: 0.85;
  margin-bottom: 16px;
}
.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  opacity: 0.9;
  margin-bottom: 36px;
  line-height: 1.5;
}
.hero-sponsor {
  margin-bottom: 32px;
}
.hero-sponsor-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.6;
  margin-bottom: 16px;
}
.hero-sponsor-logos {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.hero-sponsor-logo {
  filter: brightness(0) invert(1);
  transition: opacity var(--transition);
}
.hero-sponsor-primary {
  max-width: 320px;
  width: 60%;
}
.hero-sponsor-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
}
.hero-sponsor-secondary img {
  max-width: 150px;
  width: 100%;
}
.hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-icon {
  font-size: 1.5rem;
  color: var(--cardinal);
  margin-bottom: 16px;
  font-weight: 700;
}
.card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.card p { color: var(--cool-gray); font-size: 0.95rem; }
.card-list {
  color: var(--cool-gray);
  font-size: 0.95rem;
  padding-left: 18px;
  margin: 0;
}
.card-list li { margin-bottom: 6px; }
.card-list li:last-child { margin-bottom: 0; }

/* ===== Schedule ===== */
.schedule-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}
.schedule-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}
.schedule-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cardinal);
  margin-bottom: 4px;
}
.schedule-subtitle {
  font-size: 0.85rem;
  color: var(--cool-gray);
  margin-bottom: 24px;
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  padding-left: 140px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 130px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: #ddd;
}
.timeline-item {
  position: relative;
  padding: 0 0 36px 28px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-time {
  position: absolute;
  left: -140px;
  top: 0;
  width: 120px;
  text-align: right;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--cardinal);
}
.timeline-dot {
  position: absolute;
  left: -8px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cardinal);
  border: 3px solid var(--light-gray);
}
.timeline-content h3 { font-size: 1.05rem; font-weight: 600; }
.timeline-content p { color: var(--cool-gray); font-size: 0.9rem; margin-top: 4px; }

/* ===== Prizes ===== */
.prizes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-top: 16px;
}
.prize-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}
.prize-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cardinal);
  margin-bottom: 4px;
}
.prize-subtitle {
  font-size: 0.85rem;
  color: var(--cool-gray);
  margin-bottom: 20px;
}
.prize-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.prize-table th {
  text-align: left;
  padding: 8px 0;
  border-bottom: 2px solid var(--dark);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.prize-table td { padding: 10px 0; border-bottom: 1px solid #eee; }
.prize-table tfoot td {
  border-bottom: none;
  border-top: 2px solid var(--dark);
  font-weight: 700;
  padding-top: 12px;
}

/* ===== Prize Rules ===== */
.prize-rules {
  max-width: 700px;
  margin: 40px auto 0;
  padding: 20px 24px;
  background: var(--light-gray);
  border-radius: var(--radius);
}
.prize-rules h3 {
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--cool-gray);
}
.prize-rules ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.prize-rules li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 4px;
  font-size: 0.78rem;
  color: var(--cool-gray);
  line-height: 1.5;
}
.prize-rules li:last-child { margin-bottom: 0; }
.prize-rules li::before {
  content: '·';
  position: absolute;
  left: 2px;
  color: var(--cool-gray);
}

/* ===== Accordion ===== */
.accordion {
  max-width: 700px;
  margin: 48px auto 0;
}
details {
  border: 1px solid #e0e0e0;
  border-radius: var(--radius);
  margin-bottom: 12px;
  background: var(--white);
  overflow: hidden;
}
summary {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--cool-gray);
  transition: transform var(--transition);
}
details[open] summary::after { content: '−'; }
summary::-webkit-details-marker { display: none; }
.accordion-body {
  padding: 0 24px 20px;
  color: var(--cool-gray);
  font-size: 0.95rem;
}
.accordion-body p { margin-bottom: 10px; }
.accordion-body p:last-child { margin-bottom: 0; }
.accordion-body a { color: var(--cardinal); text-decoration: underline; }
.rules-callout {
  background: #fdf2f2;
  border-left: 4px solid var(--cardinal);
  padding: 14px 16px;
  border-radius: 4px;
  color: var(--dark);
  font-size: 0.95rem;
  line-height: 1.55;
}
.accordion-list {
  padding-left: 22px;
  margin: 12px 0;
  color: var(--cool-gray);
  font-size: 0.95rem;
}
.accordion-list li { margin-bottom: 4px; }
.accordion-list li:last-child { margin-bottom: 0; }

/* ===== Sponsors ===== */
.sponsors-showcase {
  max-width: 600px;
  margin: 48px auto 0;
  text-align: center;
}
.sponsor-tier { display: flex; align-items: center; justify-content: center; }
.sponsor-tier-primary {
  margin-bottom: 40px;
}
.sponsor-tier-primary img {
  max-width: 400px;
  width: 65%;
  margin: 0 auto;
}
.sponsor-tier-secondary {
  gap: 48px;
}
.sponsor-tier-secondary img {
  max-width: 160px;
  width: 100%;
}

/* ===== Team ===== */
.team-group { margin-bottom: 48px; }
.team-group:last-child { margin-bottom: 0; }
.team-group-title {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--cool-gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 28px;
}
.team-grid {
  display: grid;
  gap: 32px;
  justify-items: center;
}
.team-grid-directors { grid-template-columns: repeat(2, 1fr); max-width: 400px; margin: 0 auto; }
.team-grid-judges { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); max-width: 750px; margin: 0 auto; }
.team-member { text-align: center; }
.avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--cardinal);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 1.2rem;
  margin: 0 auto 12px;
}
.team-name { font-weight: 600; font-size: 0.95rem; }
.team-role { font-size: 0.85rem; color: var(--cool-gray); }
.judges-list {
  list-style: none;
  text-align: center;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  font-size: 1rem;
  color: var(--cool-gray);
}
.judges-list li { position: relative; }
.judges-list li + li::before {
  content: '·';
  position: absolute;
  left: -16px;
  color: var(--cool-gray);
  font-size: 1.3em;
  line-height: 1;
}
.team-list {
  text-align: center;
  max-width: 600px;
  margin: 32px auto 0;
}
.team-row {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 24px;
  font-size: 1rem;
  color: var(--cool-gray);
  margin-bottom: 8px;
}
.team-row li { position: relative; }
.team-row li + li::before {
  content: '·';
  position: absolute;
  left: -16px;
  color: var(--cool-gray);
  font-size: 1.3em;
  line-height: 1;
}
.team-role-tag {
  font-size: 0.75rem;
  background: var(--cardinal);
  color: var(--white);
  padding: 2px 8px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 4px;
}

/* ===== Register CTA ===== */
.register-cta {
  background: var(--cardinal);
  color: var(--white);
  text-align: center;
}
.register-cta h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.register-cta p { opacity: 0.9; max-width: 500px; margin: 0 auto 28px; font-size: 1.05rem; }
.register-deadline {
  margin-top: 20px !important;
  font-size: 0.8rem;
  opacity: 0.6;
  font-style: italic;
}
.hero-deadline {
  margin-top: 20px;
  font-size: 0.85rem;
  opacity: 0.65;
}
.hero-deadline s {
  opacity: 0.5;
}
.badge-extended {
  display: inline-block;
  background: var(--white);
  color: var(--cardinal);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  vertical-align: middle;
  margin-left: 4px;
}
.register-cta .badge-extended {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.6);
  padding: 36px 0;
  text-align: center;
  font-size: 0.9rem;
}
.footer-brand { margin-bottom: 12px; color: rgba(255,255,255,0.8); }
.footer-links { display: flex; gap: 24px; justify-content: center; }
.footer-links a { transition: color var(--transition); }
.footer-links a:hover { color: var(--white); }

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ===== Mobile ===== */
@media (max-width: 1024px) {
  .timeline { padding-left: 100px; }
  .timeline::before { left: 90px; }
  .timeline-time { left: -100px; width: 80px; font-size: 0.8rem; }
}

@media (max-width: 640px) {
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 260px;
    height: 100vh;
    background: var(--cardinal-dark);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    transition: right var(--transition);
  }
  .nav-links.open { right: 0; }
  .nav-links a { font-size: 1.1rem; color: var(--white); }
  .nav-cta { text-align: center; width: 100%; display: block !important; }

  .section { padding: 64px 0; }
  .hero { padding: 100px 20px 60px; }

  .timeline { padding-left: 0; margin-top: 32px; }
  .timeline::before { left: 6px; }
  .timeline-item { padding-left: 32px; }
  .timeline-time {
    position: static;
    width: auto;
    text-align: left;
    margin-bottom: 4px;
    font-size: 0.85rem;
  }
  .timeline-dot { left: 0; }

  .schedule-grid { grid-template-columns: 1fr; }
  .prizes-grid { grid-template-columns: 1fr; }
  .team-grid-directors { grid-template-columns: repeat(2, 1fr); }
  .team-grid-judges { grid-template-columns: repeat(2, 1fr); }
}