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

:root {
  --primary-color: #13C9EA;
  --bg-color: #ffffff;
  --text-color: #333333;
  --card-bg: #f8f9fa;
  --border-color: #e9ecef;
  --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

[data-theme="dark"] {
  --bg-color: #012730;
  --text-color: #ffffff;
  --card-bg: #2d2d2d;
  --border-color: #404040;
  --shadow: 0 2px 10px rgba(0,0,0,0.3);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Navigation */
nav {
  background-color: var(--bg-color);
  padding: 1rem 0;
  box-shadow: var(--shadow);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-color);
  text-decoration: none;
}
.logo-icon {
  width: 40px;
  height: 40px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-icon img { width: 100%; height: 100%; object-fit: cover; }
.nav-links {
  display: flex;
  list-style: none;
  gap: 3rem;
  align-items: center;
}
.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}
.nav-links a:hover { color: var(--primary-color); }
.nav-actions { display: flex; align-items: center; gap: 1rem; }
.theme-toggle img { width: 40px; height: 40px; cursor: pointer; }
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: background-color 0.3s ease;
}
.theme-toggle:hover { background-color: var(--card-bg); }
.apply-btn {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 8px;
  font-weight: 650;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.apply-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(13, 78, 0, 0.3);
}

/* Hero */
.hero {
  margin-top: 80px;
  padding: 6rem 0;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-color) 0%, var(--card-bg) 100%);
}
.hero-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
}
.hero h1 { font-size: 3.5rem; margin-bottom: 1rem; font-weight: 700; }
.hero h1 .highlight { color: var(--primary-color); }
.hero p {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}
.hero-arrow {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: 2rem;
  animation: bounce 2s infinite;
  cursor: pointer;
  transition: transform 0.3s ease;
}
.hero-arrow:hover { transform: scale(1.2); }
@keyframes bounce {
  0%,20%,50%,80%,100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* Sections */
section { padding: 6rem 0; }
.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}
.section-subtitle {
  text-align: center;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 3rem;
}
.highlight { color: var(--primary-color); }

/* Events */
.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}
.event-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.event-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.event-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}
.event-card p { margin-bottom: 1.5rem; }
.event-details {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.9rem;
}
.event-detail { display: flex; align-items: center; gap: 0.5rem; }
.book-btn {
  background-color: var(--primary-color);
  color: white;
  align-self: flex-end;
  padding: 1rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* Mini timeline inside each event */
.event-timeline {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}
.timeline-step {
  flex: 1 1 80px;
  text-align: center;
  margin-bottom: 1rem;
}
.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 0.5rem;
  background-color: var(--primary-color);
  color: #fff;
  font-size: 1.2rem;
  border-radius: 50%;
  box-shadow: var(--shadow);
}
.timeline-step p {
  font-size: 0.85rem;
  color: var(--text-color);
  margin: 0;
}
.PrevEvents-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 3rem;
  color: #333333;
  text-align: center;
  margin-top: 3rem;
  cursor: pointer;
  
}

[data-theme="dark"] .PrevEvents-card { color: #ffffff;}


/* About */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}
.about-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
}
.about-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.about-icon {
  width: 48px;
  height: 48px;
  background-color: var(--primary-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}

/* Curriculum */
.curriculum-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}
.curriculum-card {
  background-color: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color 0.3s ease;
}
.curriculum-card:hover { border-color: var(--primary-color); }
.curriculum-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.curriculum-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}
.ai-icon { background-color: var(--primary-color); }
.curriculum-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.topic-tag {
  background-color: var(--primary-color);
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}
.topic-explanations {
  margin-top: 1.5rem;
  padding-left: 1.5rem;

}
.topic-explanations li { margin-bottom: 0.5rem; }

/* Community */
.community-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 3rem;
  text-align: center;
  margin-top: 3rem;
}
.community-icon {
  width: 80px;
  height: 80px;
  background-color: var(--primary-color);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: white;
  font-size: 2rem;
}

/* Feedback */
.feedback-form {
  max-width: 600px;
  margin: 2rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.feedback-form input,
.feedback-form textarea {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--card-bg);
  color: var(--text-color);
}
.feedback-form button { align-self: flex-start; }

/* Resources */
.quick-access {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
  text-decoration: none;
}
.quick-access-item {
  background-color: #13C9EA;
  color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}
[data-theme="dark"] .quick-access-item { color: #000000 !important; }
.quick-access-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}


/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.5rem; }
  .section-title { font-size: 2rem; }
  .events-grid,
  .about-grid,
  .curriculum-grid,
  .resources-grid {
    grid-template-columns: 1fr;
  }
}