/* ============================================
   AVLOKAN 2026 — Design System & Styles
   ACE, Civil Engineering, B.I.T. Sindri
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Base colors */
  --bg-primary: #060a14;
  --bg-secondary: #0c1220;
  --bg-tertiary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-glass: rgba(17, 24, 39, 0.45);

  /* Accent colors */
  --gold: #d4a843;
  --gold-light: #e8c76a;
  --gold-dark: #b08930;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-purple: #8b5cf6;
  --accent-rose: #f43f5e;

  /* Text colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-gold: #d4a843;

  /* Borders */
  --border-subtle: rgba(148, 163, 184, 0.1);
  --border-gold: rgba(212, 168, 67, 0.3);
  --border-glow: rgba(212, 168, 67, 0.15);

  /* Gradients */
  --gradient-gold: linear-gradient(135deg, #d4a843, #e8c76a);
  --gradient-dark: linear-gradient(180deg, #060a14, #0c1220);
  --gradient-hero: linear-gradient(135deg, #060a14 0%, #0d1525 40%, #0a1628 100%);
  --gradient-card: linear-gradient(145deg, rgba(17, 24, 39, 0.8), rgba(6, 10, 20, 0.9));

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 4px 30px rgba(212, 168, 67, 0.15);

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* New Blueprint Styles */
  --blueprint-grid: rgba(212, 168, 67, 0.04);
  --blueprint-line: rgba(212, 168, 67, 0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(212, 168, 67, 0.3);
  color: var(--text-primary);
}

/* --- Container --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--gold-dark);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}

/* --- Blueprint Grid Utility --- */
.blueprint-grid {
  background-image:
    linear-gradient(var(--blueprint-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--blueprint-line) 1px, transparent 1px);
  background-size: 40px 40px;
  position: relative;
}

.blueprint-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(212, 168, 67, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 168, 67, 0.02) 1px, transparent 1px);
  background-size: 8px 8px;
  pointer-events: none;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.4s var(--ease-out);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(6, 10, 20, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-bit-logo {
  height: 44px;
  width: auto;
  filter: drop-shadow(0 2px 8px rgba(212, 168, 67, 0.2));
}

.nav-ace-logo {
  height: 48px;
  width: auto;
  filter: drop-shadow(0 2px 8px rgba(212, 168, 67, 0.2));
}

.nav-logo-text {
  font-family: 'Playfair Display', serif;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--gold);
  letter-spacing: 2px;
}

.nav-logo-text span {
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 0.75rem;
  display: block;
  letter-spacing: 1px;
  font-family: 'Inter', sans-serif;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all 0.3s var(--ease-out);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold);
  background: rgba(212, 168, 67, 0.08);
}

.nav-cta:hover {
  box-shadow: var(--shadow-gold) !important;
  transform: translateY(-1px);
}

@media (max-width: 992px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(6, 10, 20, 0.98);
    backdrop-filter: blur(30px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 60px 40px;
    gap: 12px;
    transition: all 0.5s var(--ease-out);
    z-index: 1000;
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s var(--ease-out);
  }

  .nav-links.active li {
    opacity: 1;
    transform: translateY(0);
  }

  .nav-links.active li:nth-child(1) {
    transition-delay: 0.1s;
  }

  .nav-links.active li:nth-child(2) {
    transition-delay: 0.2s;
  }

  .nav-links.active li:nth-child(3) {
    transition-delay: 0.3s;
  }

  .nav-links.active li:nth-child(4) {
    transition-delay: 0.4s;
  }

  .nav-links.active li:nth-child(5) {
    transition-delay: 0.5s;
  }

  .nav-links.active li:nth-child(6) {
    transition-delay: 0.6s;
  }

  .nav-links.active li:nth-child(7) {
    transition-delay: 0.7s;
  }

  .nav-links a {
    font-size: 1.5rem;
    padding: 16px;
    display: block;
  }

  .nav-cta {
    margin-top: 20px;
    width: auto !important;
  }
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
  z-index: 1001;
}

@media (max-width: 992px) {
  .nav-toggle {
    display: flex;
  }
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s var(--ease-out);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translateY(10px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-10px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
  padding: 120px 24px 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(212, 168, 67, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(59, 130, 246, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
  animation: heroGlow 12s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }

  100% {
    transform: translate(-2%, -1%) rotate(2deg);
  }
}

/* Grid pattern overlay */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(212, 168, 67, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 168, 67, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(212, 168, 67, 0.1);
  border: 1px solid var(--border-gold);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gold-light);
  margin-bottom: 28px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  animation: fadeInDown 0.8s var(--ease-out);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.5);
  }
}

.hero-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 32px;
  animation: fadeInDown 0.8s 0.1s var(--ease-out) both;
}

.hero-logos img {
  height: 80px;
  width: auto;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
}

.hero-ace-logo {
  height: 120px !important;
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 8px;
  animation: fadeInUp 0.8s 0.2s var(--ease-out) both;
}

.hero-title .gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  color: var(--text-muted);
  letter-spacing: 6px;
  margin-bottom: 16px;
  animation: fadeInUp 0.8s 0.3s var(--ease-out) both;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.8;
  animation: fadeInUp 0.8s 0.4s var(--ease-out) both;
}

/* Countdown */
.countdown {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  animation: fadeInUp 0.8s 0.5s var(--ease-out) both;
}

.countdown-item {
  text-align: center;
}

.countdown-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  display: block;
  min-width: 70px;
  background: rgba(212, 168, 67, 0.08);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 14px 8px;
}

.countdown-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 8px;
  display: block;
}

.countdown-separator {
  font-size: 2rem;
  color: var(--text-muted);
  font-weight: 300;
  padding-bottom: 20px;
}

/* Hero CTA */
.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  animation: fadeInUp 0.8s 0.6s var(--ease-out) both;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.3s var(--ease-out);
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--bg-primary);
  box-shadow: 0 4px 20px rgba(212, 168, 67, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212, 168, 67, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--border-gold);
}

.btn-outline:hover {
  background: rgba(212, 168, 67, 0.08);
  border-color: var(--gold);
  transform: translateY(-2px);
}

.btn-secondary-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2.5s ease-in-out infinite;
}

.scroll-indicator span {
  display: block;
  width: 2px;
  height: 30px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  margin: 0 auto 8px;
  border-radius: 2px;
}

.scroll-indicator svg {
  stroke: var(--gold);
  opacity: 0.6;
}

@keyframes bounce {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(10px);
  }
}

/* ============================================
   SECTION COMMON STYLES
   ============================================ */
.section {
  padding: var(--section-padding);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 16px;
}

.section-tag::before,
.section-tag::after {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--border-gold);
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-title .gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Section divider */
.section-divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: 3px;
  margin: 0 auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1.02rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.stat-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: all 0.3s var(--ease-out);
}

.stat-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.stat-value {
  font-family: 'Playfair Display', serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--gold);
  display: block;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-top: 4px;
}

.about-visual {
  position: relative;
}

.about-card-stack {
  display: grid;
  gap: 16px;
}

.info-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  transition: all 0.3s var(--ease-out);
}

.info-card:hover {
  border-color: var(--border-gold);
  transform: translateX(6px);
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.4rem;
}

.info-icon.gold {
  background: rgba(212, 168, 67, 0.12);
}

.info-icon.blue {
  background: rgba(59, 130, 246, 0.12);
}

.info-icon.emerald {
  background: rgba(16, 185, 129, 0.12);
}

.info-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.info-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================
   SCHEDULE / TIMELINE
   ============================================ */
.schedule {
  background: var(--bg-primary);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold), var(--accent-blue), var(--accent-emerald));
  transform: translateX(-50%);
  border-radius: 2px;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 40px;
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
  text-align: right;
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-left: 0;
  margin-right: 48px;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: 48px;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 3px solid;
  background: var(--bg-primary);
  z-index: 2;
}

.timeline-item:nth-child(1) .timeline-dot {
  border-color: var(--gold);
  box-shadow: 0 0 16px rgba(212, 168, 67, 0.4);
}

.timeline-item:nth-child(2) .timeline-dot {
  border-color: var(--accent-blue);
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.4);
}

.timeline-item:nth-child(3) .timeline-dot {
  border-color: var(--accent-emerald);
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.4);
}

.timeline-content {
  width: calc(50% - 48px);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s var(--ease-out);
}

.timeline-content:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.day-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 12px;
}

.day-badge.day1 {
  background: rgba(212, 168, 67, 0.15);
  color: var(--gold);
}

.day-badge.day2 {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
}

.day-badge.day3 {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
}

.timeline-content h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-content p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

.timeline-content .event-list {
  list-style: none;
  margin-top: 12px;
}

.timeline-content .event-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.timeline-content .event-list li::before {
  content: '▸';
  color: var(--gold);
  font-weight: 700;
}

/* ============================================
   HACKATHON SECTION
   ============================================ */
.hackathon {
  background: var(--bg-secondary);
}

.hack-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

.hack-stat {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: all 0.3s var(--ease-out);
}

.hack-stat:hover {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
  transform: translateY(-4px);
}

.hack-stat .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.hack-stat .value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gold);
  display: block;
}

.hack-stat .label {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Schedule Table */
.schedule-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: 48px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.schedule-table thead {
  background: rgba(212, 168, 67, 0.1);
}

.schedule-table th {
  padding: 16px 24px;
  text-align: left;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--gold);
}

.schedule-table td {
  padding: 14px 24px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-subtle);
}

.schedule-table tr:hover td {
  background: rgba(212, 168, 67, 0.03);
}

/* Prizes Table */
.prizes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.prize-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
}

.prize-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.prize-card.gold-prize::before {
  background: var(--gradient-gold);
}

.prize-card.silver-prize::before {
  background: linear-gradient(90deg, #c0c0c0, #e8e8e8);
}

.prize-card.bronze-prize::before {
  background: linear-gradient(90deg, #cd7f32, #e8a862);
}

.prize-card.special-prize::before {
  background: linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan));
}

.prize-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
}

.prize-emoji {
  font-size: 3rem;
  margin-bottom: 12px;
  display: block;
}

.prize-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.prize-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.prize-amount {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gold);
}

.prize-perks {
  list-style: none;
  margin-top: 16px;
}

.prize-perks li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 4px 0;
}

/* ============================================
   TRACKS / TABS
   ============================================ */
.tracks-section {
  background: var(--bg-primary);
}

.track-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.track-tab {
  padding: 12px 24px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  font-family: 'Inter', sans-serif;
}

.track-tab:hover {
  border-color: var(--border-gold);
  color: var(--gold);
}

.track-tab.active {
  background: rgba(212, 168, 67, 0.12);
  border-color: var(--gold);
  color: var(--gold);
}

.track-panel {
  display: none;
}

.track-panel.active {
  display: block;
  animation: fadeIn 0.4s var(--ease-out);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.track-header {
  text-align: center;
  margin-bottom: 32px;
}

.track-header h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.track-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-style: italic;
}

.track-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Problem Statement Accordion */
.ps-list {
  display: grid;
  gap: 12px;
  max-width: 900px;
  margin: 0 auto;
}

.ps-item {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s var(--ease-out);
}

.ps-item:hover {
  border-color: var(--border-gold);
}

.ps-item.open {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
}

.ps-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  transition: background 0.3s;
}

.ps-header:hover {
  background: rgba(212, 168, 67, 0.04);
}

.ps-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--gold);
  background: rgba(212, 168, 67, 0.1);
  padding: 3px 10px;
  border-radius: 4px;
  margin-right: 14px;
  flex-shrink: 0;
}

.ps-title-text {
  flex: 1;
  font-weight: 600;
  font-size: 0.95rem;
}

.ps-type {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
  padding: 3px 10px;
  border-radius: 4px;
  margin-left: 12px;
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
}

.ps-toggle {
  margin-left: 14px;
  color: var(--text-muted);
  transition: transform 0.3s var(--ease-out);
  flex-shrink: 0;
  font-size: 1.2rem;
}

.ps-item.open .ps-toggle {
  transform: rotate(180deg);
}

.ps-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out);
}

.ps-body-inner {
  padding: 0 24px 24px;
}

.ps-body-inner h5 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--gold);
  margin-bottom: 8px;
  margin-top: 16px;
}

.ps-body-inner h5:first-child {
  margin-top: 0;
}

.ps-body-inner p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.8;
}

.ps-body-inner ul {
  list-style: none;
  margin-top: 8px;
}

.ps-body-inner ul li {
  position: relative;
  padding: 4px 0 4px 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.ps-body-inner ul li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--gold);
}

/* ============================================
   DAY 2 EVENTS
   ============================================ */
.day2-events {
  background: var(--bg-secondary);
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.event-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
}

.event-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-gold);
  opacity: 0;
  transition: opacity 0.3s;
}

.event-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
}

.event-card:hover::before {
  opacity: 1;
}

.event-card .event-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  display: block;
}

.event-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.event-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.event-details {
  list-style: none;
}

.event-details li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
}

.event-details li:first-child {
  border-top: none;
}

.event-details li span.label {
  color: var(--gold);
  font-weight: 600;
  min-width: 80px;
}

/* ============================================
   SURVEY TREASURE HUNT
   ============================================ */
.treasure-hunt {
  background: var(--bg-primary);
}

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

.hunt-rules {
  display: grid;
  gap: 16px;
}

.rule-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  gap: 16px;
  transition: all 0.3s var(--ease-out);
}

.rule-card:hover {
  border-color: var(--border-gold);
  transform: translateX(4px);
}

.rule-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold);
  background: rgba(212, 168, 67, 0.1);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.rule-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.rule-card p {
  font-size: 0.87rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.hunt-challenges {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.hunt-challenges h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--gold);
}

.challenge-list {
  list-style: none;
}

.challenge-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.challenge-list li:last-child {
  border-bottom: none;
}

.challenge-list li .ch-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ============================================
   BROCHURE / DOWNLOADS SECTION
   (card styles defined in DOWNLOADS GRID below)
   ============================================ */
.brochure {
  background: var(--bg-secondary);
  text-align: center;
}

/* ============================================
   CONTACT / FOOTER
   ============================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 360px;
}

.footer h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--gold);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-contact li span.contact-icon {
  font-size: 1.1rem;
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.footer-bottom .college-info {
  color: var(--text-muted);
  font-size: 0.82rem;
  text-align: right;
}

/* ============================================
   ANIMATIONS — Scroll Reveal
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s var(--ease-out);
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {

  .about-grid,
  .hunt-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .timeline::before {
    left: 24px;
  }

  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: column;
    text-align: left;
    padding-left: 60px;
  }

  .timeline-dot {
    left: 24px;
  }

  .timeline-content,
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    width: 100%;
    margin: 0;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: rgba(6, 10, 20, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 4px;
    border-left: 1px solid var(--border-subtle);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-title {
    font-size: clamp(2.2rem, 8vw, 3.5rem);
  }

  .countdown {
    gap: 10px;
  }

  .countdown-value {
    font-size: 1.8rem;
    min-width: 55px;
    padding: 10px 6px;
  }

  .hack-overview {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .brochure-card {
    padding: 40px 24px;
  }

  .track-tabs {
    gap: 6px;
  }

  .track-tab {
    padding: 10px 16px;
    font-size: 0.8rem;
  }

  .schedule-table {
    display: block;
    overflow-x: auto;
  }

  .hero-logos img {
    height: 50px;
  }
}

@media (max-width: 480px) {
  .countdown {
    gap: 6px;
  }

  .countdown-value {
    font-size: 1.4rem;
    min-width: 48px;
    padding: 8px 4px;
  }

  .countdown-separator {
    font-size: 1.4rem;
  }

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

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

  /* SVG Drawing Icon Style */
  svg {
    stroke-linecap: round;
    stroke-linejoin: round;
    filter: drop-shadow(0 0 4px rgba(212, 168, 67, 0.2));
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .prizes-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .hack-overview {
    grid-template-columns: repeat(2, 1fr);
  }

  .ps-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .ps-type {
    margin-left: 0;
  }
}

/* ============================================
   HACK ICON WRAP (replaces emoji)
   ============================================ */
.hack-icon-wrap {
  margin-bottom: 14px;
  padding: 12px;
  background: rgba(212, 168, 67, 0.05);
  border-radius: var(--radius-md);
  display: inline-flex;
  border: 1px solid var(--border-subtle);
}

/* ============================================
   PRIZE MEDAL (replaces emoji)
   ============================================ */
.prize-medal {
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

/* ============================================
   EVENT ICON WRAP (replaces emoji)
   ============================================ */
.event-icon-wrap {
  margin-bottom: 24px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  display: inline-flex;
  border: 1px solid var(--border-subtle);
  transition: all 0.3s var(--ease-out);
}

.event-card:hover .event-icon-wrap {
  background: rgba(212, 168, 67, 0.1);
  border-color: var(--border-gold);
}

/* ============================================
   CHALLENGE NUM (replaces emoji)
   ============================================ */
.ch-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gold);
  background: rgba(212, 168, 67, 0.1);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border-gold);
}

/* ============================================
   SUBSECTION TITLE
   ============================================ */
.subsection-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 32px;
  color: var(--gold);
  text-align: center;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.subsection-title::before,
.subsection-title::after {
  content: '';
  height: 1px;
  flex: 1;
  max-width: 100px;
  background: linear-gradient(to right, transparent, var(--border-gold));
}

.subsection-title::after {
  background: linear-gradient(to left, transparent, var(--border-gold));
}

/* ============================================
   DOWNLOADS GRID
   ============================================ */
.downloads-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.brochure-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
  backdrop-filter: blur(20px);
}

.brochure-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(212, 168, 67, 0.1);
}

.brochure-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(212, 168, 67, 0.04) 0%, transparent 60%);
}

.download-icon {
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.brochure-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.brochure-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
  line-height: 1.6;
}

.brochure-card .btn {
  position: relative;
  z-index: 1;
  width: 100%;
  justify-content: center;
}

/* ============================================
   ORGANISING TEAM
   ============================================ */
.team-section {
  background: var(--bg-primary);
  position: relative;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  margin-bottom: 64px;
}

.faculty-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.team-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s var(--ease-out);
  backdrop-filter: blur(10px);
}

.team-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-6px);
  background: rgba(212, 168, 67, 0.03);
}

.faculty-card {
  padding: 40px 32px;
  border: 1px solid rgba(212, 168, 67, 0.2);
}

.team-avatar {
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  opacity: 0.8;
}

.team-avatar.student svg {
  opacity: 0.7;
}

.team-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.team-role {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--gold);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.team-dept {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ============================================
   SPEAKERS
   ============================================ */
.speakers-section {
  background: var(--bg-secondary);
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-bottom: 40px;
}

.speaker-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  text-align: center;
  transition: all 0.4s var(--ease-out);
  backdrop-filter: blur(20px);
}

.speaker-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.speaker-avatar {
  margin-bottom: 20px;
  opacity: 0.9;
}

.speaker-card h4 {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--gold);
}

.speaker-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.speakers-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-style: italic;
  padding: 20px 32px;
  background: rgba(212, 168, 67, 0.03);
  border: 1px dashed var(--border-gold);
  border-radius: var(--radius-md);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   SPONSORS
   ============================================ */
.sponsors-section {
  background: var(--bg-primary);
}

.sponsor-tiers {
  max-width: 900px;
  margin: 0 auto;
}

.sponsor-tier {
  margin-bottom: 64px;
  text-align: center;
}

.tier-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-muted);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.tier-label::before,
.tier-label::after {
  content: '';
  height: 1px;
  flex: 1;
  background: var(--border-subtle);
}

.tier-label.gold-tier {
  color: var(--gold);
}

.tier-label.gold-tier::before,
.tier-label.gold-tier::after {
  background: var(--border-gold);
}

.tier-label.silver-tier {
  color: #c0c0c0;
  border-color: rgba(192, 192, 192, 0.2);
}

.sponsor-slots {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.sponsor-placeholder {
  background: var(--bg-glass);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 60px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-style: italic;
  min-width: 250px;
}

.sponsor-card-inst {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px 44px;
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--text-primary);
  font-weight: 600;
  transition: all 0.3s var(--ease-out);
}

.sponsor-card-inst:hover {
  border-color: var(--border-gold);
  transform: scale(1.02);
}

.sponsor-logo {
  height: 44px;
  width: auto;
}

.sponsor-cta {
  text-align: center;
  margin-top: 48px;
  color: var(--text-secondary);
  font-size: 1rem;
}

.sponsor-cta a {
  color: var(--gold);
  text-decoration: none;
  font-weight: 700;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--border-gold);
  transition: all 0.3s;
}

.sponsor-cta a:hover {
  color: var(--gold-light);
  border-color: var(--gold-light);
}

/* ============================================
   REGISTRATION SECTION
   ============================================ */
.register-section {
  background: var(--bg-secondary);
}

.register-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.register-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  text-align: center;
  transition: all 0.4s var(--ease-out);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.register-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.register-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gold);
  opacity: 0;
  transition: opacity 0.3s;
}

.register-card:hover::before {
  opacity: 1;
}

.reg-icon-wrap {
  width: 80px;
  height: 80px;
  background: rgba(212, 168, 67, 0.05);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  border: 1px solid rgba(212, 168, 67, 0.1);
  transition: all 0.3s var(--ease-out);
}

.register-card:hover .reg-icon-wrap {
  background: rgba(212, 168, 67, 0.1);
  transform: scale(1.1);
  border-color: var(--gold);
}

.register-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--gold);
}

.register-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 32px;
  flex-grow: 1;
}

.reg-btn {
  width: 100%;
  justify-content: center;
  padding: 16px 24px;
}

.reg-deadline {
  display: block;
  margin-top: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   RESPONSIVE — NEW SECTIONS
   ============================================ */
@media (max-width: 1200px) {
  .hero-title {
    font-size: 4rem;
  }

  .nav-links {
    gap: 20px;
  }
}

/* ============================================
   RESPONSIVE — DEEP OPTIMIZATION
   ============================================ */
@media (max-width: 992px) {
  .navbar .nav-links {
    display: none;
    /* Mobile menu handles this */
  }

  .hero-title {
    font-size: 3.5rem;
  }

  .downloads-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

  .register-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    padding: 0 20px;
  }

  .hero-cta {
    flex-direction: column;
    gap: 16px;
    width: 100%;
    max-width: 320px;
    margin: 32px auto 0;
  }

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

  .countdown {
    gap: 10px;
  }

  .countdown-value {
    font-size: 1.8rem;
    min-width: 50px;
  }

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

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

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

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

  .hero-ace-logo {
    height: 90px !important;
  }

  .hero-logos img {
    height: 60px;
  }

  .hack-overview {
    grid-template-columns: repeat(2, 1fr);
  }

  .register-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-badge {
    font-size: 0.7rem;
  }

  .countdown-item {
    padding: 10px 8px;
  }

  .countdown-value {
    font-size: 1.4rem;
    min-width: 40px;
  }

  .countdown-label {
    font-size: 0.6rem;
  }

  .countdown {
    gap: 6px;
  }

  .countdown-separator {
    font-size: 1.4rem;
  }

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

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

  .about-stats {
    grid-template-columns: 1fr;
  }

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

  .hack-overview {
    grid-template-columns: 1fr;
  }

  .ps-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .ps-type {
    margin-left: 0;
  }

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

  .hack-overview {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .nav-logo-text span {
    display: none;
  }

  .nav-logo {
    gap: 6px;
  }

  .nav-logo-text {
    font-size: 1.1rem;
  }
}

@media (max-width: 360px) {
  .nav-bit-logo {
    display: none;
  }
}