/* High-Tech & Commun */

:root {
  --primary: #003366;
  --accent: #00ffdd;
  --bg: #0a1a2a;
  --text: #fff;
  --transition: 0.3s;
}
body {
  margin: 0; font-family: 'Poppins', sans-serif; background: var(--bg); color: var(--text);
}

/* Header High-Tech */
.header-ht {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 2rem; background: rgba(0,0,0,0.8); position: fixed; width: 100%; z-index: 1000;
}
.header-ht .logo img { height: 40px; margin-right: 0.5rem; }
.header-ht nav ul { list-style: none; display: flex; gap: 1.5rem; }
.header-ht nav a { color: var(--text); text-decoration: none; position: relative; }
.header-ht nav a.active::after,
.header-ht nav a:hover::after {
  content: ''; position: absolute; bottom: -5px; left: 0; width: 100%; height: 2px; background: var(--accent);
}

/* Hero High-Tech */
.hero-ht {
  position: relative; height: 100vh; overflow: hidden;
}
#sparkCanvas {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1;
}
.hero-content-ht {
  position: relative; z-index: 2; text-align: center; top: 50%; transform: translateY(-50%);
}
.hero-logo-ht { width: 100px; margin-bottom: 1rem; }
.title-ht { font-size: 3rem; color: var(--accent); }
.subtitle-ht { font-size: 1.2rem; margin: 1rem 0; }
.btn-ht {
  display: inline-block; padding: 0.75rem 1.5rem; background: var(--accent);
  color: var(--bg); border: none; border-radius: 4px; text-decoration: none;
}

/* Sections communes */
.section-content { padding: 6rem 1rem; max-width: 1100px; margin: auto; }
.services-grid, .gallery-grid, .contact-grid {
  display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(250px,1fr));
}
.service-card, .gallery-grid img, .contact-form {
  background: rgba(255,255,255,0.1); padding: 1.5rem; border-radius: 8px;
}
.stats-list { display: flex; gap: 2rem; margin: 1rem 0; }
.contact-form input, .contact-form textarea {
  width: 100%; margin-top: 0.5rem; padding: 0.75rem; border: none; border-radius: 4px;
}
.contact-form button {
  margin-top: 1rem; padding: 0.75rem 1.5rem; background: var(--accent);
  border: none; color: var(--bg); cursor: pointer;
}
footer {
  text-align: center; padding: 1rem; background: rgba(0,0,0,0.8); position: relative; bottom: 0;
}

/* Theme toggle */
.theme-toggle { background: none; border: none; color: var(--text); font-size: 1.2rem; cursor: pointer; }

/* Responsive */
@media (max-width: 768px) {
  .stats-list { flex-direction: column; }
  .header-ht { flex-direction: column; gap: 1rem; }
}