/* ========== VARIABLES MODERNES ========== */
:root {
  --primary: #1a5f7a;
  --primary-dark: #0e4156;
  --primary-light: #e8f4f8;
  --secondary: #f4a261;
  --secondary-dark: #e76f51;
  --success: #2a9d8f;
  --danger: #e63946;
  --warning: #e9c46a;
  --dark: #2c3e4e;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #f0f2f5 100%);
  color: var(--gray-800);
  line-height: 1.5;
  min-height: 100vh;
}

/* ========== TYPOGRAPHIE ========== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  color: var(--gray-900);
}

h1 { font-size: 2.5rem; letter-spacing: -0.02em; }
h2 { font-size: 1.75rem; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; }

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

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

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.05); opacity: 0.8; }
}

/* ========== LOGIN PAGE MODERNE ========== */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 1.5rem;
}

.login-card {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-xl);
  animation: fadeInUp 0.6s ease-out;
}

.login-logo {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.login-sub {
  text-align: center;
  color: var(--gray-600);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

/* ========== FORMULAIRES MODERNES ========== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--gray-700);
  font-size: 0.875rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: var(--transition);
  background: white;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 95, 122, 0.1);
}

.btn-primary {
  width: 100%;
  padding: 0.875rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

/* ========== ALERTES ========== */
.alert {
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideIn 0.3s ease-out;
}

.alert-success {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
  color: #155724;
  border-left: 4px solid var(--success);
}

.alert-danger {
  background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
  color: #721c24;
  border-left: 4px solid var(--danger);
}

/* ========== TOPBAR ========== */
.topbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.topbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topbar-back {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray-600);
  transition: var(--transition);
}

.topbar-back:hover {
  color: var(--primary);
  transform: translateX(-4px);
}

/* ========== HERO SECTION ========== */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, var(--primary-light) 0%, #ffffff 100%);
}

.hero-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--primary);
  color: white;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* ========== NEWS GRID ========== */
.news-grid {
  max-width: 1200px;
  margin: 3rem auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.news-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.card-thumb {
  display: block;
  height: 200px;
  overflow: hidden;
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.news-card:hover .card-thumb img {
  transform: scale(1.05);
}

.card-body {
  padding: 1.5rem;
}

.card-date {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.75rem;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.card-excerpt {
  color: var(--gray-600);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.card-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
  transition: var(--transition);
}

.card-btn:hover {
  gap: 0.75rem;
  color: var(--primary-dark);
}

/* ========== DETAIL PAGE ========== */
.detail-wrap {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.detail-hero-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-lg);
}

.detail-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.detail-meta-badge {
  background: var(--primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}

.detail-meta-date {
  color: var(--gray-500);
  font-size: 0.875rem;
}

.detail-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.detail-divider {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
  margin: 1.5rem 0;
}

.detail-body {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--gray-700);
}

/* ========== RELATED SECTION ========== */
.related-section {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-200);
}

.related-label {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.related-underline {
  width: 40px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.related-card {
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.related-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.related-card-body {
  padding: 1rem;
}

.related-card-title {
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.related-card-date {
  font-size: 0.75rem;
  color: var(--gray-500);
}

/* ========== ADMIN DASHBOARD ========== */
.admin-container {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 280px;
  background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
  color: white;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  transition: var(--transition);
}

.admin-sidebar-header {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 1.5rem;
}

.admin-sidebar-header h2 {
  color: white;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.admin-sidebar-header p {
  color: var(--gray-400);
  font-size: 0.75rem;
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0 1rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--gray-300);
  transition: var(--transition);
  cursor: pointer;
}

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

.nav-item.active {
  background: var(--primary);
  color: white;
}

.nav-item .icon {
  font-size: 1.25rem;
}

.admin-main {
  flex: 1;
  margin-left: 280px;
  padding: 2rem;
}

.admin-header {
  background: white;
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.admin-header h1 {
  font-size: 1.5rem;
  margin: 0;
}

.logout-btn {
  background: var(--danger);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.logout-btn:hover {
  background: #c82333;
  transform: translateY(-2px);
}

/* ========== STATS CARDS ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-card .icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.stat-card .value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.stat-card .label {
  color: var(--gray-600);
  font-size: 0.875rem;
}

/* ========== TABLES MODERNES ========== */
.table-container {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-top: 1rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead {
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
}

.data-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-700);
}

.data-table tr:hover {
  background: var(--gray-50);
}

/* ========== MODAL ========== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
  animation: fadeInUp 0.3s ease-out;
}

.modal-content {
  background: white;
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-header h3 {
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-500);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--danger);
}

/* ========== BOUTONS D'ACTION ========== */
.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

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

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

.btn-delete {
  color: var(--danger);
}

.btn-delete:hover {
  background: #ffe5e7;
}

.btn-add {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-add:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .admin-sidebar {
    transform: translateX(-100%);
    z-index: 200;
  }
  
  .admin-sidebar.mobile-open {
    transform: translateX(0);
  }
  
  .admin-main {
    margin-left: 0;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .detail-title {
    font-size: 1.75rem;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== UTILITAIRES ========== */
.empty-state {
  text-align: center;
  padding: 4rem;
  color: var(--gray-500);
}

.empty-state .icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.action-buttons {
  display: flex;
  gap: 0.5rem;
}

/* ========== TOGGLE BUTTON MOBILE ========== */
.menu-toggle {
  display: none;
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--primary);
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  z-index: 150;
  border: none;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
}