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

:root {
  --accent: #f59e0b;
  --dark: #1a1a2e;
  --dark-2: #16213e;
  --light: #f8fafc;
  --text: #1e293b;
  --text-muted: #64748b;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--text); background: #fff; line-height: 1.6; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

/* Nav */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: var(--dark); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,0.06); }
.nav-inner { display: flex; align-items: center; gap: 2rem; height: 64px; }
.logo { font-weight: 800; font-size: 1.1rem; color: #fff; text-decoration: none; }
.nav-links { display: flex; gap: 1.5rem; flex: 1; }
.nav-links a { text-decoration: none; color: rgba(255,255,255,0.6); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--accent); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.6rem 1.4rem; border-radius: 8px; font-weight: 600; font-size: 0.9rem; text-decoration: none; cursor: pointer; border: none; transition: all 0.2s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #d97706; }
.btn-outline { background: transparent; color: var(--dark); border: 2px solid rgba(255,255,255,0.3); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.btn-lg { padding: 0.9rem 2rem; font-size: 1rem; border-radius: 10px; }
.btn-full { width: 100%; }

/* Hero */
.hero { min-height: 100vh; background: var(--dark); display: flex; align-items: center; padding-top: 64px; position: relative; }
.hero::before { content: ''; position: absolute; inset: 0; background: rgba(0,0,0,0.55); pointer-events: none; z-index: 1; }
.hero-inner { position: relative; z-index: 2; }
.hero-inner { padding: 5rem 0; }
.hero-badge { display: inline-block; background: rgba(245,158,11,0.15); color: var(--accent); border: 1px solid rgba(245,158,11,0.3); padding: 0.3rem 1rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; margin-bottom: 1.5rem; letter-spacing: 0.05em; text-transform: uppercase; }
.hero h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; color: #fff; line-height: 1.15; margin-bottom: 1rem; }
.hero-accent { color: var(--accent); }
.hero-sub { color: rgba(255,255,255,0.5); font-size: 1.05rem; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.hero-tel { display: inline-flex; align-items: center; gap: 0.5rem; color: rgba(255,255,255,0.7); text-decoration: none; font-size: 1.1rem; font-weight: 600; transition: color 0.2s; }
.hero-tel:hover { color: var(--accent); }

/* Sections */
.section { padding: 6rem 0; }
.section-light { background: var(--light); }
.section-dark { background: var(--dark-2); }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-header h2 { font-size: 2rem; font-weight: 800; margin-bottom: 0.75rem; }
.section-header p { color: var(--text-muted); font-size: 1.05rem; }
.section-header-light h2 { color: #fff; }
.section-header-light p { color: rgba(255,255,255,0.5); }

/* Services */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.service-card { background: #fff; border: 1px solid rgba(0,0,0,0.06); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow); transition: transform 0.2s, box-shadow 0.2s; }
.service-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(0,0,0,0.12); }
.service-icon { font-size: 2rem; margin-bottom: 1rem; }
.service-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; }
.service-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* Réalisations */
.realisations-list { display: grid; gap: 1rem; }
.realisation-item { display: flex; align-items: center; gap: 1rem; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; padding: 1rem 1.5rem; }
.realisation-cat { background: rgba(245,158,11,0.15); color: var(--accent); font-size: 0.75rem; font-weight: 700; padding: 0.25rem 0.75rem; border-radius: 999px; white-space: nowrap; }
.realisation-label { color: rgba(255,255,255,0.85); font-size: 0.95rem; }

/* À propos */
.apropos-grid { max-width: 800px; }
.apropos-text h2 { font-size: 2rem; font-weight: 800; margin-bottom: 1rem; }
.apropos-text p { color: var(--text-muted); line-height: 1.8; margin-bottom: 2rem; }
.apropos-stats { display: flex; gap: 2.5rem; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat strong { font-size: 1.1rem; font-weight: 700; color: var(--accent); }
.stat span { font-size: 0.85rem; color: var(--text-muted); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.contact-info h2 { font-size: 2rem; font-weight: 800; color: #fff; margin-bottom: 0.5rem; }
.contact-sub { color: rgba(255,255,255,0.5); margin-bottom: 2rem; }
.info-items { display: flex; flex-direction: column; gap: 1.25rem; }
.info-item { display: flex; flex-direction: column; gap: 0.2rem; }
.info-item strong { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 600; }
.info-item a, .info-item span { color: rgba(255,255,255,0.8); text-decoration: none; font-size: 0.95rem; }
.info-item a:hover { color: var(--accent); }
.contact-form form { display: flex; flex-direction: column; gap: 1rem; }
.contact-form input, .contact-form textarea { background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; padding: 0.85rem 1rem; color: #fff; font-family: inherit; font-size: 0.95rem; outline: none; transition: border-color 0.2s; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255,255,255,0.35); }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); }

/* Footer */
.footer { background: var(--dark); border-top: 1px solid rgba(255,255,255,0.06); padding: 1.5rem 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-inner span { color: rgba(255,255,255,0.4); font-size: 0.85rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: rgba(255,255,255,0.4); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-actions { flex-direction: column; }
}