:root {
  color-scheme: dark;

  --bg-primary: #1a1a2e;
  --bg-secondary: rgba(25, 25, 45, 0.8);
  --bg-card: rgba(35, 35, 60, 0.6);
  --text-primary: #f5f5f5;
  --text-secondary: #ffeb3b;
  --text-muted: #fdd835;
  --accent-primary: #ffeb3b;
  --accent-secondary: #ffc107;
  --accent-orange: #ff9800;
  --accent-gold: #ffd700;
  --border-color: rgba(255, 235, 59, 0.4);
  --shadow-color: rgba(255, 235, 59, 0.5);
  --poster-color: rgba(255, 235, 59, 0.15);
  --poster-hover-color: rgba(255, 235, 59, 0.25);
  --navbar-bg: rgba(26, 26, 46, 0.95);
}

body.light-mode {
  --bg-primary: #fffde7;
  --bg-secondary: rgba(255, 255, 255, 0.9);
  --bg-card: rgba(255, 253, 231, 0.85);
  --text-primary: #1a1a1a;
  --text-secondary: #f57f17;
  --text-muted: #f9a825;
  --accent-primary: #fbc02d;
  --accent-secondary: #f57f17;
  --accent-orange: #ef6c00;
  --accent-gold: #f9a825;
  --border-color: rgba(251, 192, 45, 0.4);
  --shadow-color: rgba(251, 192, 45, 0.3);
  --navbar-bg: rgba(255, 255, 255, 0.95);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

body {
  font-family: "Inter", "Segoe UI", Tahoma, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  position: relative;
  transition:
    background 0.4s ease,
    color 0.4s ease;
  line-height: 1.6;
}

#canvas3d {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.5;
  pointer-events: none;
}

body.light-mode #canvas3d {
  opacity: 0.2;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: var(--navbar-bg);
  backdrop-filter: blur(20px);
  z-index: 1000;
  padding: 20px 40px;
  box-shadow: 0 2px 20px var(--shadow-color);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.4s ease;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-orange),
    var(--accent-gold)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  cursor: pointer;
  z-index: 1001;
  transition: transform 0.3s ease;
  letter-spacing: 1px;
}

.nav-logo:hover {
  transform: scale(1.05);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1001;
  flex-shrink: 0;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--accent-primary);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 35px;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  padding: 8px 16px;
  transition: all 0.3s ease;
  border-radius: 6px;
  font-size: 0.95rem;
  position: relative;
  display: block;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

.nav-link:hover {
  color: var(--accent-primary);
  background: rgba(255, 235, 59, 0.1);
}

.dropdown {
  position: relative;
  cursor: pointer;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  background: var(--navbar-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 0;
  min-width: max-content;
  backdrop-filter: blur(20px);
  box-shadow: 0 10px 40px var(--shadow-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  list-style: none;
}

.dropdown-menu li {
  list-style: none;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 12px 24px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  white-space: nowrap;
}

.dropdown-link:hover {
  color: var(--accent-primary);
  background: rgba(255, 235, 59, 0.15);
  padding-left: 30px;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 150px 20px 80px;
  z-index: 10;
  overflow: hidden;
}

.hero-content {
  max-width: 900px;
  animation: fadeInUp 1s ease;
}

.hero-super {
  font-size: 1.2rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 10px;
  font-weight: 600;
  animation: fadeInDown 1s ease;
}

.hero-title {
  font-size: 6rem;
  font-weight: 900;
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-orange),
    var(--accent-gold)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
  letter-spacing: 2px;
  animation: fadeInDown 1s ease 0.2s both;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-weight: 500;
  animation: fadeInUp 1s ease 0.3s both;
}

.hero-tagline {
  font-size: 1.2rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 40px;
  animation: fadeInUp 1s ease 0.4s both;
}

.event-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.2), rgba(46, 125, 50, 0.2));
  border: 2px solid #4caf50;
  border-radius: 50px;
  padding: 12px 30px;
  margin: 30px 0;
  animation: fadeInUp 1s ease 0.5s both;
}

.status-icon {
  font-size: 1.5rem;
  color: #4caf50;
}

.status-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-hero {
  display: inline-block;
  padding: 18px 45px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  color: #1a1a1a;
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
  border-radius: 50px;
  transition: all 0.4s ease;
  box-shadow: 0 8px 30px var(--shadow-color);
  animation: fadeInUp 1s ease 0.6s both;
  position: relative;
  overflow: hidden;
  margin: 10px 20px;
}

.btn-hero:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 45px var(--shadow-color);
}

.quick-link-btns {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

/* Results Section */
.results-section {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
}

.results-container {
  max-width: 1400px;
  margin: 0 auto;
}

.podium-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.podium-card {
  background: var(--bg-card);
  border: 3px solid var(--border-color);
  border-radius: 25px;
  padding: 40px 30px;
  text-align: center;
  backdrop-filter: blur(20px);
  transition: all 0.5s ease;
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.podium-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
  animation: shimmer 3s infinite;
}

.podium-card.winner {
  border-color: var(--accent-gold);
  transform: scale(1.05);
  box-shadow: 0 20px 70px rgba(255, 215, 0, 0.4);
}

.podium-card.runner-up {
  border-color: #c0c0c0;
}

.podium-card.third-place {
  border-color: #cd7f32;
}

.podium-card:hover {
  transform: translateY(-15px) scale(1.02);
  box-shadow: 0 25px 80px var(--shadow-color);
}

.podium-card.winner:hover {
  transform: translateY(-15px) scale(1.08);
}

.medal-icon {
  font-size: 5rem;
  margin-bottom: 15px;
  animation: bounce 2s infinite;
}

.rank-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.rank-badge.champion {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-orange));
  color: #1a1a1a;
  border: none;
  font-weight: 800;
}

.participant-name {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-primary);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.participant-institute {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.trophy-animation {
  font-size: 3rem;
  margin-top: 20px;
  animation: rotate 3s infinite linear;
}

.congratulations-box {
  background: linear-gradient(135deg, rgba(255, 235, 59, 0.15), rgba(255, 152, 0, 0.15));
  border: 2px solid var(--accent-primary);
  border-radius: 20px;
  padding: 50px 40px;
  text-align: center;
  backdrop-filter: blur(10px);
  margin-top: 50px;
}

.congrats-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  animation: pulse 2s infinite;
}

.congrats-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-primary);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.congrats-text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-primary);
  max-width: 900px;
  margin: 0 auto;
}

/* Poster Section */
.poster-placeholder {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.poster-placeholder img {
  max-width: 100%;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 15px 50px var(--shadow-color);
  transition: all 0.4s ease;
}

.poster-placeholder img:hover {
  transform: scale(1.02);
  box-shadow: 0 20px 70px var(--shadow-color);
}

.poster-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.poster-btn {
  display: inline-block;
  padding: 18px 45px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  color: #1a1a1a;
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
  border-radius: 50px;
  transition: all 0.4s ease;
  box-shadow: 0 8px 30px var(--shadow-color);
  position: relative;
  overflow: hidden;
}

.poster-btn:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 45px var(--shadow-color);
}

/* Questions Archive Section */
.questions-archive {
  max-width: 1200px;
  margin: 0 auto;
}

.archive-intro {
  text-align: center;
  margin-bottom: 50px;
}

.archive-text {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-primary);
  max-width: 800px;
  margin: 0 auto;
}

.questions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
  margin-bottom: 50px;
}

.question-card {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 20px;
  padding: 40px 35px;
  backdrop-filter: blur(15px);
  transition: all 0.4s ease;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.question-card.featured {
  border-color: var(--accent-gold);
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), var(--bg-card));
}

.question-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px var(--shadow-color);
  border-color: var(--accent-primary);
}

.question-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  animation: float 3s ease-in-out infinite;
}

.question-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-primary);
  margin-bottom: 15px;
  text-align: center;
}

.question-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 25px;
}

.question-meta {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 30px;
}

.meta-item {
  background: rgba(255, 235, 59, 0.15);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 35px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #1a1a1a;
  text-decoration: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  transition: all 0.4s ease;
  box-shadow: 0 5px 20px var(--shadow-color);
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 35px var(--shadow-color);
}

.btn-icon {
  font-size: 1.2rem;
}

.practice-note {
  background: linear-gradient(135deg, rgba(255, 152, 0, 0.15), rgba(255, 235, 59, 0.15));
  border: 2px solid var(--accent-orange);
  border-radius: 20px;
  padding: 30px 40px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.note-icon {
  font-size: 3rem;
  flex-shrink: 0;
}

.note-text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.note-text strong {
  color: var(--accent-orange);
  font-weight: 800;
}

/* Page Sections */
.page-section {
  position: relative;
  padding: 100px 20px;
  z-index: 10;
  transition: background 0.4s ease;
}

.page-section:nth-child(2n-1) {
  background: var(--bg-secondary);
}

.section-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-title {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-orange)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin-bottom: 50px;
  letter-spacing: 1px;
}

/* About Section */
.about-card {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 20px;
  padding: 50px;
  backdrop-filter: blur(15px);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
  transition: all 0.4s ease;
}

.about-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 70px var(--shadow-color);
}

.about-text {
  font-size: 1.2rem;
  line-height: 2;
  color: var(--text-primary);
  margin-bottom: 25px;
}

.about-text:last-child {
  margin-bottom: 0;
}

/* Event Cards */
.event-card {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 20px;
  padding: 40px;
  margin-bottom: 40px;
  backdrop-filter: blur(15px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  transition: all 0.4s ease;
}

.event-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px var(--shadow-color);
  border-color: var(--accent-primary);
}

.event-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

.event-icon {
  font-size: 3rem;
  animation: pulse 2s infinite;
}

.event-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin: 0;
}

.event-badge {
  display: inline-block;
  padding: 10px 20px;
  background: linear-gradient(
    135deg,
    var(--accent-orange),
    var(--accent-secondary)
  );
  color: #1a1a1a;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 25px;
}

.event-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.detail-item {
  background: rgba(255, 235, 59, 0.1);
  padding: 15px 20px;
  border-radius: 10px;
  border-left: 3px solid var(--accent-primary);
}

.detail-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 5px;
  font-weight: 600;
}

.detail-value {
  display: block;
  font-size: 1.1rem;
  color: var(--text-primary);
  font-weight: 600;
}

.syllabus-box {
  background: rgba(255, 152, 0, 0.1);
  border: 1px solid var(--accent-orange);
  border-radius: 12px;
  padding: 25px;
  margin-bottom: 25px;
}

.syllabus-title {
  font-size: 1.3rem;
  color: var(--accent-orange);
  margin-bottom: 15px;
  font-weight: 700;
}

.syllabus-list {
  list-style: none;
  padding: 0;
}

.syllabus-list li {
  padding: 10px 0 10px 30px;
  position: relative;
  color: var(--text-primary);
  font-size: 1rem;
}

.syllabus-list li::before {
  content: "∫";
  position: absolute;
  left: 0;
  color: var(--accent-orange);
  font-size: 1.5rem;
  font-weight: bold;
}

.challenge-desc {
  color: var(--text-primary);
  line-height: 1.8;
  font-size: 1.05rem;
}

/* Info Grid */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.info-card {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  backdrop-filter: blur(15px);
  transition: all 0.4s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.info-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px var(--shadow-color);
  border-color: var(--accent-primary);
}

.info-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.info-title {
  font-size: 1.5rem;
  color: var(--accent-primary);
  margin-bottom: 20px;
  font-weight: 700;
}

.info-list {
  list-style: none;
  padding: 0;
  text-align: left;
}

.info-list li {
  padding: 10px 0 10px 25px;
  position: relative;
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.info-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-gold);
  font-size: 1.2rem;
  font-weight: bold;
}

/* Key Dates Section */
.dates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.date-card {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  backdrop-filter: blur(15px);
  transition: all 0.4s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.date-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px var(--shadow-color);
  border-color: var(--accent-primary);
}

.date-card.highlight {
  background: linear-gradient(
    135deg,
    rgba(255, 235, 59, 0.2),
    rgba(255, 152, 0, 0.2)
  );
  border-color: var(--accent-primary);
}

.date-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.date-title {
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: 15px;
  font-weight: 600;
}

.date-value {
  font-size: 1.3rem;
  color: var(--accent-primary);
  font-weight: 700;
}

/* Registration Section - Closed */
.registration-box {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 20px;
  padding: 50px;
  backdrop-filter: blur(15px);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.registration-box.closed {
  border-color: #9e9e9e;
  background: linear-gradient(135deg, rgba(158, 158, 158, 0.1), var(--bg-card));
}

.closed-icon {
  font-size: 5rem;
  margin-bottom: 20px;
  opacity: 0.7;
}

.registration-title {
  font-size: 2rem;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 20px;
  font-weight: 700;
}

.closed-message {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-primary);
  margin-bottom: 15px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.closed-submessage {
  font-size: 1rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Footer */
.footer {
  position: relative;
  background: var(--navbar-bg);
  border-top: 2px solid var(--border-color);
  padding: 50px 20px 30px;
  text-align: center;
  z-index: 100;
  transition: all 0.4s ease;
}

.footer-content {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  z-index: 100;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-orange),
    var(--accent-gold)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

.footer-text {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.footer-contact {
  margin: 30px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

.contact-item {
  font-size: 1rem;
  color: var(--text-primary);
  background: rgba(255, 235, 59, 0.1);
  padding: 10px 20px;
  border-radius: 8px;
  display: inline-block;
  cursor: text;
  user-select: text;
}

.footer-copyright {
  font-size: 0.9rem;
  color: var(--accent-primary);
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  margin-top: 20px;
}

/* Animations */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 120px 20px 60px;
    min-height: 80vh;
  }

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

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-tagline {
    font-size: 1rem;
  }

  .hero-super {
    font-size: 0.9rem;
  }

  .event-status-badge {
    padding: 10px 20px;
  }

  .status-text {
    font-size: 0.95rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .about-card {
    padding: 30px;
  }

  .about-text {
    font-size: 1rem;
  }

  .podium-container {
    grid-template-columns: 1fr;
  }

  .podium-card.winner {
    transform: scale(1);
  }

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

  .practice-note {
    flex-direction: column;
    text-align: center;
  }

  .event-card {
    padding: 25px;
  }

  .event-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .event-icon {
    font-size: 2.5rem;
  }

  .event-title {
    font-size: 1.5rem;
  }

  .event-details {
    grid-template-columns: 1fr;
  }

  .info-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .dates-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .registration-box {
    padding: 30px 20px;
  }

  .congrats-title {
    font-size: 1.5rem;
  }

  .congrats-text {
    font-size: 1rem;
  }
}

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

  .btn-hero {
    padding: 14px 30px;
    font-size: 1rem;
  }

  .medal-icon {
    font-size: 3.5rem;
  }

  .participant-name {
    font-size: 1.5rem;
  }

  .question-icon {
    font-size: 3rem;
  }

  .closed-icon {
    font-size: 3.5rem;
  }
}