@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Colors */
  --primary: #1e3a8a; /* Deep Blue */
  --primary-light: #3b82f6;
  --secondary: #f59e0b; /* Amber */
  --secondary-hover: #d97706;
  --bg-color: #f8fafc;
  --surface-color: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #f8fafc;
  
  /* Spacing */
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;

  /* Misc */
  --border-radius: 8px;
  --box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Utilities */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.text-center { text-align: center; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

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

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

.btn-secondary {
  background-color: var(--secondary);
  color: var(--text-light);
}

.btn-secondary:hover {
  background-color: var(--secondary-hover);
}

/* Header & Nav */
header {
  background-color: var(--surface-color);
  box-shadow: var(--box-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.top-bar {
  background-color: var(--primary);
  color: var(--text-light);
  padding: 0.5rem 0;
  font-size: 0.875rem;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-contact a {
  margin-left: 1rem;
  color: var(--text-light);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background-color: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-primary);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--primary);
}

/* Hero Section */
.hero {
  height: 80vh;
  min-height: 500px;
  background: linear-gradient(rgba(30, 58, 138, 0.7), rgba(30, 58, 138, 0.7)), url('../images/bannerNew.png') center/cover;
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-light);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease 0.2s;
  animation-fill-mode: both;
}

.hero .btn-group {
  animation: fadeInUp 1s ease 0.4s;
  animation-fill-mode: both;
}

/* Sections */
.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--secondary);
  border-radius: 2px;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--surface-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.feature-icon {
  font-size: 3rem;
  color: var(--primary-light);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

/* Notices / Downloads */
.notices-list {
  background-color: var(--surface-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.notice-item {
  display: flex;
  align-items: center;
  /*padding: 1rem 0;*/
  border-bottom: 1px solid #e2e8f0;
}

.notice-item:last-child {
  border-bottom: none;
}

.notice-icon {
  color: #1e3a8a;
  margin-right: 1rem;
  font-size: 1.5rem;
}

.notice-item a {
  color: #f00;
  font-weight: 500;
  transition: var(--transition);
}

.notice-item a:hover {
  text-decoration: underline;
  color: var(--primary-light);
}

/* Footer */
footer {
  background-color: var(--primary);
  color: var(--text-light);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--secondary);
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col ul li a {
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--secondary);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Page Headers (for inner pages) */
.page-header {
  background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(30, 58, 138, 0.8)), url('../images/hero_bg.png') center/cover;
  padding: 4rem 0;
  text-align: center;
  color: white;
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

/* Content Blocks */
.content-block {
  background-color: var(--surface-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 2rem;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.gallery-item {
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
  aspect-ratio: 1;
  background-color: #e2e8f0;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.1);
}

/* Responsive */
@media (max-width: 768px) {
  .top-bar {
    display: none;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--surface-color);
    flex-direction: column;
    padding: 1rem;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    text-align: center;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
}

/* Lightbox Styles */
.gallery-item {
  cursor: pointer;
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(30, 58, 138, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  color: white;
  font-size: 2.5rem;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.lightbox {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(5px);
}

.lightbox-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 90vh;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: var(--border-radius);
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  animation: zoomIn 0.3s ease;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.3s;
}

.lightbox-close:hover,
.lightbox-close:focus {
  color: var(--secondary);
}

@keyframes zoomIn {
  from {transform: translate(-50%, -50%) scale(0.9); opacity: 0;}
  to {transform: translate(-50%, -50%) scale(1); opacity: 1;}
}