/* Main CSS - Global Styles */

/* ===== CSS Variables ===== */
:root {
  --primary-color: #0066cc;
  --secondary-color: #28a745;
  --accent-color: #ffc107;
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-muted: #999999;
  --background-light: #f8f9fa;
  --background-white: #ffffff;
  --border-color: #dee2e6;
  --shadow-light: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-medium: 0 4px 8px rgba(0,0,0,0.15);
  --shadow-heavy: 0 8px 16px rgba(0,0,0,0.2);
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
}

/* ===== Global Styles ===== */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-white);
}

.main-content {
  min-height: calc(100vh - 120px);
  padding-top: 0;
}

/* ===== Typography ===== */
.section-title {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
}

.section-description {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* ===== Hero Section ===== */
.hero-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.hero-background {
  position: relative;
  z-index: 2;
  padding: 5rem 0;
}

.min-vh-75 {
  min-height: 75vh;
}

.hero-title {
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-description {
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-search .input-group-lg .form-control {
  border-radius: var(--border-radius-md);
  border: none;
  box-shadow: var(--shadow-medium);
}

.hero-search .btn-lg {
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-medium);
  transition: var(--transition-medium);
}

.hero-search .btn-lg:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-heavy);
}

.hero-image img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-heavy);
}

/* ===== Feature Cards ===== */
.features-section {
  background-color: var(--background-white);
}

.feature-card {
  background: var(--background-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.feature-icon {
  background: rgba(0, 102, 204, 0.1);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

.feature-title {
  color: var(--text-primary);
  font-weight: 600;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== School Cards ===== */
.school-card {
  border: none;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
  overflow: hidden;
}

.school-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.school-card .card-img-top {
  height: 200px;
  object-fit: cover;
  transition: var(--transition-medium);
}

.school-card:hover .card-img-top {
  transform: scale(1.05);
}

.school-card .badge {
  font-size: 0.9rem;
  padding: 0.5rem;
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, #004499 100%);
}

.cta-title {
  font-weight: 700;
}

/* ===== Buttons ===== */
.btn {
  border-radius: var(--border-radius-md);
  font-weight: 500;
  transition: var(--transition-fast);
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background-color: #0056b3;
  border-color: #0056b3;
  transform: translateY(-1px);
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline-primary:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-1px);
}

/* ===== Forms ===== */
.form-control {
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25);
}

.input-group-text {
  background-color: var(--background-light);
  border-color: var(--border-color);
}

/* ===== Utilities ===== */
.text-primary {
  color: var(--primary-color) !important;
}

.bg-light {
  background-color: var(--background-light) !important;
}

.bg-darker {
  background-color: #1a1a1a !important;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  .hero-background {
    padding: 3rem 0;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .feature-card {
    margin-bottom: 2rem;
  }
  
  .school-card {
    margin-bottom: 2rem;
  }
}

@media (max-width: 576px) {
  .hero-search .row > div {
    margin-bottom: 1rem;
  }
  
  .hero-search .btn-lg {
    width: 100%;
  }
}

/* ===== Loading States ===== */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ===== Animations ===== */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp 0.5s ease-out;
}

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