:root {
  --bg-color: #0a0a0a;
  --surface-color: #1a1a1a;
  --accent-color: #39ff14; /* Neon Green */
  --accent-glow: rgba(57, 255, 20, 0.3);
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --danger: #ff3e3e;
  
  --font-main: 'Inter', sans-serif;
  --font-display: 'Oswald', sans-serif;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 12rem;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  
  --shadow-neon: 0 0 10px var(--accent-glow), 0 0 20px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, .nav-logo {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* Gritty Texture Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background-image: url('https://www.transparenttextures.com/patterns/dark-matter.png');
  opacity: 0.05;
  pointer-events: none;
  z-index: 9999;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Typography */
.neon-text {
  color: var(--accent-color);
  text-shadow: 0 0 10px var(--accent-glow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  font-family: var(--font-display);
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--bg-color);
  box-shadow: var(--shadow-neon);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px var(--accent-color);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--accent-color);
  color: var(--accent-color);
}

.btn-outline:hover {
  background-color: var(--accent-color);
  color: var(--bg-color);
}

/* Sections */
section {
  padding: var(--spacing-xl) 0;
}

.section-large {
  padding: 16rem 0;
}

.section-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background-color: var(--accent-color);
}

/* Header */
header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  transition: var(--transition);
}

header.scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.nav-logo {
  font-size: 1.5rem;
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 600;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--accent-color);
}

/* Hero */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('../img/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 5rem;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

/* Table Style */
.table-container {
  overflow-x: auto;
  margin: var(--spacing-md) 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

th, td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

th {
  background: rgba(255,255,255,0.05);
  color: var(--accent-color);
  text-transform: uppercase;
}

/* Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.card {
  background: var(--surface-color);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--accent-glow);
  transform: translateY(-5px);
}

/* Responsive */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 4rem;
  }

  .section-large {
    padding: 5rem 0;
  }

  .hero h1 { 
    font-size: 2.8rem; 
  }

  .hero h2 {
    font-size: 1.2rem !important;
    margin-bottom: 2rem;
  }

  .section-title {
    font-size: 2.2rem;
    text-align: center !important;
    display: block !important;
    width: 100%;
  }

  .section-title::after {
    left: 50% !important;
    transform: translateX(-50%) !important;
  }

  h1, h2, h3, h4, h5, h6, p {
    text-align: center !important;
  }

  .hero-content {
    text-align: center;
    margin: 0 auto;
  }

  /* Force stack for all grids */
  section > div, 
  section > .container > div[style*="display: grid"],
  .grid {
    grid-template-columns: 1fr !important;
    gap: 3rem !important;
  }

  /* Navigation adjustments */
  .nav-links {
    display: none;
  }

  nav {
    justify-content: center;
  }

  /* Adjust section layout */
  section > div[style*="display: grid"],
  section > .container > div[style*="display: grid"] {
    text-align: center;
  }

  #ecole div[style*="display: grid"] {
    grid-template-columns: 1fr !important;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
  background: var(--surface-color);
  border: 2px solid var(--bg-color);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}

/* Animations */
@keyframes neon-pulse {
  0% { box-shadow: 0 0 5px var(--accent-glow); }
  50% { box-shadow: 0 0 20px var(--accent-color); }
  100% { box-shadow: 0 0 5px var(--accent-glow); }
}

.btn-neon-pulse {
  animation: neon-pulse 2s infinite;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  z-index: 10000;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  padding: 20px;
  justify-content: center;
  align-items: center;
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-close {
  position: absolute;
  top: 30px;
  right: 30px;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  transition: var(--transition);
}

.lightbox-close:hover {
  color: var(--accent-color);
  transform: scale(1.1);
}