:root {
  /* Color Palette - Deep Indigo & Neon theme */
  --bg-color: #0b0e14;
  --bg-card: #161b22;
  --bg-nav: rgba(22, 27, 34, 0.8);
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --accent-blue: #58a6ff;
  --accent-purple: #bc8cff;
  --accent-cyan: #39c5bb;
  --success: #3fb950;
  --border-color: #30363d;
  --shadow-sm: 0 1px 0 rgba(1, 4, 9, 0.04);
  --shadow-md: 0 8px 24px rgba(1, 4, 9, 0.2);
  --transition-fast: 0.2s ease;
  --radius-md: 8px;
  --radius-lg: 12px;
}

/* Global resets */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  color: var(--accent-blue);
  margin-top: 0;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  text-decoration: underline;
  color: var(--accent-cyan);
}

/* Layout */
.container {
  max-width: 1600px !important;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-nav);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem 0;
}

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

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

.nav-links a, .dropdown-trigger {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.5rem 0;
  cursor: pointer;
}

.nav-links a.active, .nav-links a:hover, .dropdown-trigger:hover {
  color: var(--text-primary);
  text-decoration: none;
}

/* Dropdown */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--bg-card);
  min-width: 200px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  z-index: 1001;
  padding: 0.5rem 0;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.dropdown-content a {
  padding: 0.75rem 1.5rem;
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.dropdown-content a:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lang-switcher select {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-switcher select:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
}

.lang-switcher form {
  padding: 0;
  margin: 0;
  background: transparent;
  border: none;
}

/* Layout Grid */
.main-layout {
  display: grid;
  grid-template-columns: 150px 1fr 350px;
  gap: 2rem;
  margin-top: 2rem;
}

.layout-spacer { grid-column: 1; }
.content-area { grid-column: 2; }
.sidebar { grid-column: 3; }

@media (max-width: 1450px) {
  .main-layout {
    grid-template-columns: 1fr 350px;
  }
  .layout-spacer {
    display: none;
  }
  .content-area { grid-column: 1; }
  .sidebar { grid-column: 2; }
}

@media (max-width: 1050px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
  .content-area, .sidebar { grid-column: 1; }
}

/* Sidebar */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.sidebar-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.sidebar-section h3 {
  font-size: 1rem;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
}

.sidebar-section h3 svg {
  color: var(--accent-blue);
  width: 1.2rem;
  height: 1.2rem;
}

.mini-event {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.mini-event:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.mini-event h4 {
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
  color: var(--accent-blue);
}

.mini-event p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Sidebar Form adjustments */
.sidebar form {
  padding: 0;
  border: none;
  background: transparent;
}

/* Components */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
}

.card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.card-content {
  padding: 1.5rem;
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.card-meta {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
  display: block;
  text-transform: uppercase;
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: white;
}

.btn-primary:hover {
  background-color: #79c0ff;
  transform: scale(1.02);
  text-decoration: none;
}

/* Forms */
form {
  max-width: 450px;
  margin: 0 auto;
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

form p {
  margin-bottom: 1.2rem;
}

form label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

form input, form textarea, form select {
  width: 100%;
  padding: 0.75rem;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
}

form input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

/* News Slider */
.slider-wrapper {
  position: relative;
  margin: 2rem 0;
  width: 100%;
}

.slider-container {
  display: flex;
  gap: 30px;
  overflow-x: hidden;
  padding: 1rem 0;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
}

.slide-card {
  flex: 0 0 100%;
  max-width: 100%;
  height: 500px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  scroll-snap-align: center;
  transition: transform 0.3s ease;
  position: relative;
}

.slide-image {
  width: 100%;
  height: 100%;
  position: relative;
}

.slide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.5rem 2.5rem;
  background: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
  backdrop-filter: blur(4px);
  color: white;
  z-index: 5;
}

.slide-overlay h2 {
  font-size: 1.8rem;
  margin: 0;
  font-weight: 600;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.slide-category {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary-accent);
  margin-bottom: 0.5rem;
  display: block;
}

/* Slider Controls */
.slider-controls {
  position: absolute;
  top: 50%;
  width: 100%;
  display: flex;
  justify-content: space-between;
  transform: translateY(-50%);
  pointer-events: none;
  padding: 0 20px;
  z-index: 10;
}

.slider-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 2rem;
  cursor: pointer;
  pointer-events: auto;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-btn:hover {
  background: var(--primary-accent);
  transform: scale(1.1);
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 2rem;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active {
  background: var(--primary-accent);
  width: 30px;
  border-radius: 5px;
}

@media (max-width: 992px) {
  .slide-card {
    flex-direction: column;
    height: auto;
  }
  .slide-image {
    flex: 0 0 250px;
  }
  .slide-content {
    padding: 2rem;
  }
  .slide-content h2 {
    font-size: 1.8rem;
  }
}

/* Sidebar Projet List */
.projet-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.projet-list li {
  margin-bottom: 0.5rem;
}

.projet-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.projet-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-blue);
  transform: translateX(5px);
}

.projet-name {
  font-size: 0.9rem;
  font-weight: 500;
}

.projet-count {
  font-size: 0.8rem;
  background: var(--accent-blue);
  color: white;
  padding: 2px 6px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
}

/* Footer */
footer {
  padding: 4rem 0 3rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 4rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-blue);
  text-decoration: none;
}

.footer-social {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.footer-social span {
  color: var(--text-primary);
  font-weight: 600;
  margin-right: 0.5rem;
}

.footer-social a {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.footer-social a:hover {
  color: var(--accent-blue);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
  opacity: 0.7;
}

/* Helpers */
.text-accent { color: var(--accent-cyan); }
.mt-4 { margin-top: 2rem; }
.hero {
  text-align: center;
  padding: 4rem 1rem;
  background: radial-gradient(circle at top right, rgba(88, 166, 255, 0.05), transparent),
              radial-gradient(circle at bottom left, rgba(188, 140, 255, 0.05), transparent);
  border-radius: var(--radius-lg);
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

/* RSS & API Section */
.dev-tools {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.dev-tools li a {
  display: block;
  padding: 0.5rem 1rem;
  background-color: #1c2128;
  border-radius: 20px;
  font-size: 0.85rem;
  border: 1px solid var(--border-color);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  animation: fadeIn 0.4s ease-out forwards;
}

.card:nth-child(n) {
  animation-delay: calc(var(--i, 1) * 0.05s);
}

/* RTL Support */
[dir="rtl"] {
  text-align: right;
}

[dir="rtl"] .nav-links {
  flex-direction: row-reverse;
}

[dir="rtl"] .dropdown-content {
  left: auto;
  right: 0;
}

[dir="rtl"] .sidebar-section h3 {
  flex-direction: row-reverse;
}

[dir="rtl"] .mini-event h4, 
[dir="rtl"] .mini-event p {
  text-align: right;
}

[dir="rtl"] .btn svg {
  margin-left: 0;
  margin-right: 0.5rem;
}