/**
 * Landing Page Styles
 * Student Information System
 */

:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --secondary: #06b6d4;
  --text-dark: #1e293b;
  --text-light: #64748b;
}

* {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
}

/* ========================================
   NAVIGATION
======================================== */

.navbar {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  padding: 1rem 0;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary) !important;
}

.nav-link {
  color: var(--text-dark) !important;
  font-weight: 500;
  margin: 0 0.5rem;
  transition: color 0.3s;
}

.nav-link:hover {
  color: var(--primary) !important;
}

.btn-admin {
  background: var(--primary);
  color: white !important;
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-weight: 500;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}

.btn-admin:hover {
  background: var(--primary-dark);
  color: white !important;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(79, 70, 229, 0.3);
}

/* ========================================
   HERO SECTION
======================================== */

.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 1px,
    transparent 1px
  );
  background-size: 50px 50px;
  animation: moveGrid 20s linear infinite;
}

@keyframes moveGrid {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.95;
}

.hero-icon {
  font-size: 6rem;
  opacity: 0.9;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.btn-get-started {
  background: white;
  color: var(--primary);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  border: none;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-get-started:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  color: var(--primary);
}

/* ========================================
   FEATURES SECTION
======================================== */

.features {
  padding: 5rem 0;
  background: #f8fafc;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  text-align: center;
  color: var(--text-dark);
}

.feature-card {
  background: white;
  border-radius: 20px;
  padding: 2.5rem;
  text-align: center;
  transition: all 0.3s;
  border: 1px solid #e2e8f0;
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: white;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.8;
}

/* ========================================
   ABOUT SECTION
======================================== */

.about {
  padding: 5rem 0;
}

.about-content {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.about-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.about-text p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 1rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-label {
  color: var(--text-light);
  font-weight: 500;
}

/* ========================================
   FOOTER
======================================== */

.footer {
  background: var(--text-dark);
  color: white;
  padding: 2rem 0;
  text-align: center;
}

.footer p {
  margin: 0;
  opacity: 0.8;
}

/* ========================================
   RESPONSIVE
======================================== */

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .about-content {
    flex-direction: column;
  }

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

  .btn-admin {
    margin-top: 1rem;
  }
}