/* CSS Variables */
:root {
  --background: hsl(210, 40%, 98%);
  --foreground: hsl(210, 15%, 25%);
  --card: hsl(0, 0%, 100%);
  --primary: hsl(210, 60%, 25%);
  --primary-foreground: hsl(0, 0%, 100%);
  --secondary: hsl(45, 90%, 55%);
  --secondary-foreground: hsl(210, 15%, 25%);
  --muted: hsl(210, 40%, 96%);
  --muted-foreground: hsl(210, 15%, 55%);
  --border: hsl(210, 40%, 92%);
  --radius: 0.75rem;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Inter, system-ui, sans-serif;
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

ul {
  list-style: none;
}

.hidden {
  display: none !important;
}

/* Layout */
.page {
  min-height: 100vh;
}

.container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4rem;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
}

.nav-links {
  display: flex;
  align-items: baseline;
  gap: 2rem;
}

.nav-link {
  color: var(--foreground);
  font-weight: 500;
  transition: color 0.15s;
}

.nav-link:hover,
.nav-link-btn:hover {
  color: var(--primary);
}

.nav-link-btn {
  font-weight: 500;
  color: var(--foreground);
  transition: color 0.15s;
}

.mobile-menu-btn {
  color: var(--foreground);
  font-size: 1.25rem;
  padding: 0.25rem;
  transition: color 0.15s;
}

.mobile-menu-btn:hover {
  color: var(--primary);
}

.mobile-menu {
  border-top: 1px solid var(--border);
  background-color: var(--card);
  padding: 1rem 0;
}

.mobile-menu-inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-menu-link {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 0;
  color: var(--foreground);
  font-weight: 500;
  transition: color 0.15s;
}

.mobile-menu-link:hover {
  color: var(--primary);
}

.desktop-only {
  display: none;
}

.mobile-only {
  display: block;
}

@media (min-width: 1024px) {
  .desktop-only {
    display: flex;
  }

  .mobile-only {
    display: none;
  }

  .mobile-menu {
    display: none !important;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  border-radius: 0.5rem;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s, transform 0.15s;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0.375rem;
}

.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
  margin-top: 0.5rem;
}

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

.btn-primary:hover {
  background-color: hsl(210, 60%, 22%);
}

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

.btn-secondary:hover {
  background-color: hsl(45, 90%, 50%);
}

.btn-outline-white {
  border: 2px solid white;
  color: white;
  background: transparent;
}

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

.btn-configure {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  height: 2.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 0.375rem;
  color: rgba(255, 255, 255, 0.8);
  background: transparent;
  transition: background-color 0.15s, color 0.15s;
}

.btn-configure:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
}

.link-btn {
  color: var(--primary);
  font-weight: 500;
  transition: color 0.15s;
}

.link-btn:hover {
  color: hsl(210, 60%, 35%);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #194066, #2d5986);
  color: white;
  padding: 6rem 0;
}

@media (min-width: 1024px) {
  .hero {
    padding: 8rem 0;
  }
}

.hero-content {
  text-align: center;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

.hero-description {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 56rem;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

@media (min-width: 768px) {
  .hero-description {
    font-size: 1.5rem;
  }
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
  }
}

/* Sections */
.section {
  padding: 4rem 0;
  background-color: var(--background);
}

.section-muted {
  background-color: var(--muted);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-description {
  font-size: 1.25rem;
  color: var(--muted-foreground);
}

.section-footer {
  text-align: center;
  margin-top: 2rem;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.stats-counter {
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
}

.stats-counter.visible {
  animation: fadeInUp 0.6s ease-out forwards;
}

.stats-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

@media (min-width: 768px) {
  .stats-value {
    font-size: 2.25rem;
  }
}

.stats-label {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* Cards */
.card {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
  transition: box-shadow 0.15s;
}

.card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.card-school {
  padding: 1.5rem;
}

.card-school h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-school p {
  color: var(--muted-foreground);
}

.card-icon {
  color: var(--primary);
  font-size: 1.875rem;
  margin-bottom: 1rem;
}

.card-image {
  width: 100%;
  height: 12rem;
  object-fit: cover;
}

.card-body {
  padding: 1.5rem;
}

.card-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-body p {
  color: var(--muted-foreground);
}

/* Grids */
.schools-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .schools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .schools-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .schools-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.faculty-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .faculty-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.faculty-content {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 2rem;
}

.faculty-avatar {
  width: 6rem;
  height: 6rem;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.faculty-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.faculty-role {
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.faculty-quote {
  color: var(--muted-foreground);
  margin-bottom: 1rem;
}

.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .news-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.news-category {
  font-size: 0.875rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.campus-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .campus-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Admission CTA */
.admission-cta {
  background-color: var(--primary);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  color: white;
}

@media (min-width: 768px) {
  .admission-cta {
    padding: 3rem;
  }
}

.admission-title {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .admission-title {
    font-size: 2.25rem;
  }
}

.admission-description {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 48rem;
  margin: 0 auto 2rem;
}

.admission-note {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 1.5rem;
}

/* Footer */
.footer {
  background-color: var(--foreground);
  color: white;
  padding: 3rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-heading {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-subheading {
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-text {
  color: rgba(255, 255, 255, 0.8);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.15s;
}

.footer-links a:hover {
  color: white;
}

.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin-top: 2rem;
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
}

.footer-configure {
  margin-top: 2rem;
  text-align: center;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
}

.modal-dialog {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 32rem;
  background-color: var(--card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-foreground);
  font-size: 1.25rem;
  line-height: 1;
  border-radius: 0.25rem;
  transition: color 0.15s, background-color 0.15s;
}

.modal-close:hover {
  color: var(--foreground);
  background-color: var(--muted);
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 0.5rem;
  padding-right: 2rem;
}

.modal-description {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  margin-bottom: 1.25rem;
}

.modal-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

.modal-textarea {
  width: 100%;
  min-height: 9rem;
  padding: 0.75rem;
  font-family: var(--font-mono, Menlo, monospace);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--foreground);
  background-color: var(--background);
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  resize: vertical;
  margin-bottom: 1.25rem;
}

.modal-textarea:focus {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.btn-modal-cancel {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
  border-radius: 0.375rem;
  transition: background-color 0.15s;
}

.btn-modal-cancel:hover {
  background-color: var(--muted);
}

.btn-modal-save {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary-foreground);
  background-color: var(--primary);
  border-radius: 0.375rem;
  transition: background-color 0.15s;
}

.btn-modal-save:hover {
  background-color: hsl(210, 60%, 22%);
}

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