:root {
  /* Palette issue du logo BIM-4U : bleu, orange, noir, gris, blanc */
  --bg-dark: #f6f8fb;
  --bg-card: #ffffff;
  --bg-card2: #eef2f7;
  --accent: #2f8fd8;      /* bleu du logo */
  --accent2: #56a5e9;     /* bleu clair du logo */
  --accent3: #8cc4ef;
  --cyan: #f58220;        /* orange du logo */
  --green: #10b981;
  --purple: #8b5cf6;
  --text: #1c1f24;        /* noir du logo */
  --text-muted: #5c6672;  /* gris du logo */
  --border: rgba(28,31,36,0.10);
  --gradient: linear-gradient(135deg, #1f7fc4, #56a5e9);
  --gradient2: linear-gradient(135deg, #ffffff, #eef2f7);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg-dark); color: var(--text); overflow-x: hidden; }
h1,h2,h3,h4,h5 { font-family: 'Space Grotesk', sans-serif; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ── UTILITIES ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-label { font-size: 12px; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; display: block; }
.section-title { font-size: clamp(32px, 5vw, 52px); font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.section-sub { font-size: 17px; color: var(--text-muted); max-width: 600px; line-height: 1.7; margin-bottom: 60px; }
.gradient-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: 8px; font-weight: 600; font-size: 15px; cursor: pointer; transition: all .3s; text-decoration: none; border: none; }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 0 30px rgba(47,143,216,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 50px rgba(47,143,216,0.55); }
.btn-outline { background: transparent; border: 1.5px solid var(--accent); color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.btn-ghost { background: rgba(47,143,216,0.1); color: var(--accent); border: 1px solid var(--border); }
.btn-ghost:hover { background: rgba(47,143,216,0.2); }
.btn-danger { background: #dc2626; color: #fff; border: none; }
.btn-danger:hover { background: #b91c1c; transform: translateY(-2px); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.tag { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; background: rgba(47,143,216,0.12); color: var(--accent); border: 1px solid var(--border); margin: 4px 2px; }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s, transform .7s; }
.reveal.visible { opacity: 1; transform: none; }

/* ── NAVBAR ── */
#navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 16px 0; transition: all .4s; }
#navbar.scrolled { background: rgba(28,31,36,0.92); backdrop-filter: blur(20px); padding: 12px 0; border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo-icon { width: 42px; height: 42px; background: var(--gradient); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 16px; color: #fff; font-family: 'Space Grotesk', sans-serif; }
.nav-logo-text { display: flex; flex-direction: column; }
.nav-logo-name { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 18px; color: var(--text); line-height: 1; }
.nav-logo-tag { font-size: 10px; color: var(--accent); letter-spacing: 2px; text-transform: uppercase; }
.nav-logo-img { height: 48px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-links a { padding: 8px 14px; color: var(--text-muted); text-decoration: none; font-size: 14px; font-weight: 500; border-radius: 6px; transition: all .2s; }
.nav-links a:hover { color: var(--text); background: rgba(28,31,36,0.06); }
.nav-cta { display: flex; gap: 10px; align-items: center; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; background: none; border: none; }
.hamburger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }
.mobile-menu { display: none; position: fixed; top: 70px; left: 0; right: 0; background: rgba(28,31,36,0.98); backdrop-filter: blur(20px); padding: 24px; border-bottom: 1px solid var(--border); z-index: 999; }
.mobile-menu.open { display: block; }
.mobile-menu ul { list-style: none; }
.mobile-menu ul li a { display: block; padding: 14px 0; color: var(--text-muted); text-decoration: none; font-size: 16px; border-bottom: 1px solid rgba(28,31,36,0.05); transition: color .2s; }
.mobile-menu ul li a:hover { color: var(--accent); }
.mobile-menu-btns { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }

/* ── HERO ── */
#hero { min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; padding-top: 80px; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(47,143,216,0.12) 0%, transparent 60%); }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(28,31,36,0.12) 1px, transparent 1px), linear-gradient(90deg, rgba(28,31,36,0.12) 1px, transparent 1px); background-size: 60px 60px; }
.hero-particles { position: absolute; inset: 0; overflow: hidden; }
.particle { position: absolute; width: 3px; height: 3px; background: var(--accent); border-radius: 50%; opacity: 0.4; animation: float linear infinite; }
@keyframes float { 0% { transform: translateY(100vh) translateX(0); opacity: 0; } 10% { opacity: 0.4; } 90% { opacity: 0.4; } 100% { transform: translateY(-100px) translateX(50px); opacity: 0; } }
.hero-content { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(47,143,216,0.1); border: 1px solid var(--border); border-radius: 50px; padding: 8px 16px; font-size: 13px; color: var(--accent); margin-bottom: 28px; }
.hero-badge-dot { width: 8px; height: 8px; background: var(--cyan); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.3); } }
.hero-title { font-size: clamp(36px, 5.5vw, 68px); font-weight: 800; line-height: 1.1; margin-bottom: 24px; }
.hero-desc { font-size: 17px; color: var(--text-muted); line-height: 1.8; margin-bottom: 40px; max-width: 520px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 50px; }
.hero-stats { display: flex; gap: 40px; }
.hero-stat-num { font-size: 28px; font-weight: 800; color: var(--text); }
.hero-stat-label { font-size: 13px; color: var(--text-muted); }
.hero-visual { position: relative; }
.hero-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hero-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; transition: all .3s; }
.hero-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 0 30px rgba(47,143,216,0.15); }
.hero-card-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 14px; }
.hero-card h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.hero-card p { font-size: 13px; color: var(--text-muted); }
.floating-badge { position: absolute; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; box-shadow: 0 10px 40px rgba(16,24,40,0.12); animation: floatBadge 3s ease-in-out infinite; }
@keyframes floatBadge { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.floating-badge-1 { top: -20px; right: 20px; }
.floating-badge-2 { bottom: -10px; left: -20px; animation-delay: 1.5s; }

/* ── SERVICES ── */
#services { background: linear-gradient(180deg, var(--bg-dark) 0%, #edf2f8 100%); }
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.service-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px; padding: 40px; position: relative; overflow: hidden; transition: all .4s; cursor: pointer; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient); transform: scaleX(0); transition: transform .4s; }
.service-card:hover { border-color: rgba(47,143,216,0.4); transform: translateY(-6px); box-shadow: 0 20px 60px rgba(16,24,40,0.12); }
.service-card:hover::before { transform: scaleX(1); }
.service-card-glow { position: absolute; top: -60px; right: -60px; width: 200px; height: 200px; border-radius: 50%; background: rgba(47,143,216,0.05); filter: blur(40px); transition: all .4s; }
.service-card:hover .service-card-glow { background: rgba(47,143,216,0.1); }
.service-icon { width: 64px; height: 64px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 28px; margin-bottom: 24px; position: relative; }
.service-num { position: absolute; top: -5px; right: -8px; font-size: 11px; font-weight: 800; background: var(--accent); color: #fff; width: 20px; height: 20px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.service-card h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.service-card > p { font-size: 15px; color: var(--text-muted); line-height: 1.7; margin-bottom: 24px; }
.service-list { list-style: none; margin-bottom: 24px; }
.service-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-muted); padding: 6px 0; border-bottom: 1px solid rgba(28,31,36,0.04); }
.service-list li::before { content: ''; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; flex-shrink: 0; }
.service-tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* ── WHY BIM-4U ── */
#why-us { background: var(--bg-dark); }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.why-list { display: grid; gap: 16px; }
.why-item { display: flex; gap: 20px; align-items: flex-start; padding: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; transition: all .3s; }
.why-item:hover { border-color: rgba(47,143,216,0.3); transform: translateX(6px); }
.why-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(47,143,216,0.12); display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.why-item h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.why-item p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.why-visual { position: relative; }
.why-big-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 24px; padding: 40px; position: relative; overflow: hidden; }
.why-big-card::after { content: ''; position: absolute; bottom: -40px; right: -40px; width: 200px; height: 200px; border-radius: 50%; background: radial-gradient(circle, rgba(47,143,216,0.12), transparent); }
.why-metric { display: flex; flex-direction: column; gap: 20px; }
.metric-bar-wrap { display: flex; flex-direction: column; gap: 8px; }
.metric-bar-header { display: flex; justify-content: space-between; font-size: 14px; }
.metric-bar-header span:last-child { color: var(--accent); font-weight: 700; }
.metric-bar-bg { height: 8px; background: rgba(28,31,36,0.06); border-radius: 4px; overflow: hidden; }
.metric-bar-fill { height: 100%; border-radius: 4px; background: var(--gradient); transition: width 1.5s ease; }

/* ── PROCESS ── */
#process { background: linear-gradient(180deg, #edf2f8 0%, var(--bg-dark) 100%); }
.process-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; position: relative; }
.process-steps::before { content: ''; position: absolute; top: 40px; left: 16%; right: 16%; height: 2px; background: linear-gradient(90deg, transparent, var(--accent), transparent); }
.process-step { text-align: center; padding: 40px 24px; position: relative; }
.process-step-num { width: 80px; height: 80px; border-radius: 50%; background: var(--bg-card); border: 2px solid var(--border); display: flex; align-items: center; justify-content: center; margin: 0 auto 24px; font-size: 28px; font-weight: 800; color: var(--accent); transition: all .4s; position: relative; z-index: 1; }
.process-step:hover .process-step-num { background: var(--accent); color: #fff; border-color: var(--accent); box-shadow: 0 0 30px rgba(47,143,216,0.4); }
.process-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.process-step p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.process-icon { font-size: 24px; margin-bottom: 8px; }

/* ── SECTORS ── */
#sectors { background: var(--bg-dark); }
.sectors-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.sector-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 28px 20px; text-align: center; transition: all .3s; cursor: pointer; }
.sector-card:hover { border-color: var(--accent); transform: translateY(-6px); box-shadow: 0 16px 40px rgba(47,143,216,0.15); }
.sector-icon { font-size: 36px; margin-bottom: 14px; display: block; }
.sector-card h4 { font-size: 15px; font-weight: 600; color: var(--text); }

/* ── TECH ── */
#tech { background: linear-gradient(180deg, var(--bg-dark) 0%, #edf2f8 100%); }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.tech-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 28px 20px; text-align: center; transition: all .3s; }
.tech-card:hover { border-color: rgba(47,143,216,0.3); transform: translateY(-4px); }
.tech-logo { font-size: 42px; margin-bottom: 12px; display: flex; align-items: center; justify-content: center; height: 60px; }
.tech-logo img { max-height: 50px; max-width: 90%; object-fit: contain; filter: grayscale(1); transition: filter .3s; }
.tech-card:hover .tech-logo img { filter: none; }
.tech-card h4 { font-size: 14px; font-weight: 600; }
.tech-card p { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ── WHY BIM SECTION ── */
#why-bim { background: #edf2f8; }
.bim-benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bim-benefit { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 32px; text-align: center; transition: all .3s; }
.bim-benefit:hover { border-color: var(--accent); transform: translateY(-4px); }
.bim-benefit-icon { width: 64px; height: 64px; border-radius: 16px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; font-size: 28px; }
.bim-benefit h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.bim-benefit p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.bim-stat { font-size: 36px; font-weight: 800; color: var(--accent); display: block; margin-bottom: 8px; }

/* ── STATS ── */
#stats { background: var(--bg-dark); }
.stats-wrapper { background: var(--bg-card); border: 1px solid var(--border); border-radius: 24px; padding: 60px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; position: relative; overflow: hidden; }
.stats-wrapper::before { content: ''; position: absolute; top: -80px; left: -80px; width: 300px; height: 300px; border-radius: 50%; background: radial-gradient(circle, rgba(47,143,216,0.08), transparent); }
.stat-item { text-align: center; }
.stat-num { font-size: 52px; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 8px; }
.stat-suffix { font-size: 28px; }
.stat-label { font-size: 15px; color: var(--text-muted); }
.stat-desc { font-size: 13px; color: var(--text-muted); margin-top: 4px; opacity: 0.7; }

/* ── PORTFOLIO ── */
#portfolio { background: linear-gradient(180deg, #edf2f8 0%, var(--bg-dark) 100%); }
.portfolio-filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }
.filter-btn { padding: 8px 20px; border-radius: 50px; border: 1px solid var(--border); background: transparent; color: var(--text-muted); font-size: 14px; cursor: pointer; transition: all .2s; font-family: 'Inter', sans-serif; }
.filter-btn.active, .filter-btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.portfolio-item { position: relative; border-radius: 16px; overflow: hidden; border: 1px solid var(--border); background: var(--bg-card); transition: all .3s; cursor: pointer; }
.portfolio-item:hover { border-color: var(--accent); transform: translateY(-6px); box-shadow: 0 20px 50px rgba(16,24,40,0.12); }
.portfolio-thumb { height: 220px; display: flex; align-items: center; justify-content: center; font-size: 60px; position: relative; overflow: hidden; }
.portfolio-thumb-bg { position: absolute; inset: 0; background: var(--gradient2); }
.portfolio-thumb-icon { position: relative; z-index: 1; font-size: 60px; }
.portfolio-thumb img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.portfolio-item:hover .portfolio-thumb img { transform: scale(1.06); }
.portfolio-overlay { position: absolute; inset: 0; background: rgba(47,143,216,0.9); display: flex; flex-direction: column; align-items: center; justify-content: center; opacity: 0; transition: opacity .3s; padding: 20px; text-align: center; }
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay h4 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.portfolio-overlay p { font-size: 13px; color: rgba(255,255,255,0.85); }
.portfolio-info { padding: 20px; }
.portfolio-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.portfolio-info .meta { font-size: 12px; color: var(--text-muted); display: flex; gap: 16px; }
.portfolio-cat { display: inline-block; font-size: 11px; background: rgba(47,143,216,0.12); color: var(--accent); padding: 3px 10px; border-radius: 20px; margin-bottom: 8px; font-weight: 600; }

/* ── BLOG ── */
#blog { background: var(--bg-dark); }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: all .3s; }
.blog-card:hover { border-color: rgba(47,143,216,0.3); box-shadow: 0 16px 40px rgba(16,24,40,0.10); }
.blog-thumb { height: 180px; display: flex; align-items: center; justify-content: center; font-size: 50px; position: relative; overflow: hidden; }
.blog-body { padding: 24px; }
.blog-category { font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.blog-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.blog-card > .blog-body > p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.blog-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text-muted); }
.read-more { background: none; border: none; padding: 0; font-family: 'Inter', sans-serif; color: var(--accent); text-decoration: none; font-weight: 600; font-size: 13px; display: flex; align-items: center; gap: 4px; cursor: pointer; }
.read-more:hover { gap: 8px; }
.read-more i { transition: transform .3s; }
.blog-card.open .read-more i { transform: rotate(90deg); }

.blog-full { max-height: 0; overflow: hidden; transition: max-height .5s ease; }
.blog-card.open .blog-full { max-height: 2400px; }
.blog-full-inner { padding-bottom: 16px; border-top: 1px solid var(--border); margin-top: 4px; padding-top: 16px; }
.blog-full-inner h4 { font-size: 15px; font-weight: 700; color: var(--text); margin: 16px 0 6px; }
.blog-full-inner h4:first-child { margin-top: 0; }
.blog-full-inner p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 12px; }

/* ── FAQ ── */
#faq { background: linear-gradient(180deg, var(--bg-dark) 0%, #edf2f8 100%); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; transition: all .3s; }
.faq-item.open { border-color: rgba(47,143,216,0.3); }
.faq-q { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; cursor: pointer; gap: 16px; }
.faq-q h4 { font-size: 15px; font-weight: 600; }
.faq-toggle { width: 28px; height: 28px; background: rgba(47,143,216,0.12); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: all .3s; color: var(--accent); font-size: 14px; }
.faq-item.open .faq-toggle { background: var(--accent); color: #fff; transform: rotate(45deg); }
.faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: all .4s; }
.faq-item.open .faq-a { max-height: 200px; padding: 0 24px 20px; }
.faq-a p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.faq-sidebar { position: sticky; top: 100px; }
.faq-cta-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px; padding: 36px; text-align: center; }
.faq-cta-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.faq-cta-card p { font-size: 15px; color: var(--text-muted); margin-bottom: 24px; }

/* ── QUOTE FORM ── */
#quote { background: var(--bg-dark); }
.form-container { max-width: 860px; margin: 0 auto; background: var(--bg-card); border: 1px solid var(--border); border-radius: 24px; padding: 56px; }
.form-section-title { font-size: 16px; font-weight: 700; color: var(--accent); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 14px; font-weight: 500; color: var(--text-muted); }
.form-group input, .form-group select, .form-group textarea { background: rgba(28,31,36,0.04); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; color: var(--text); font-family: 'Inter', sans-serif; font-size: 15px; transition: all .3s; outline: none; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); background: rgba(47,143,216,0.06); box-shadow: 0 0 0 3px rgba(47,143,216,0.1); }
.form-group select option { background: var(--bg-card); color: var(--text); }
.form-group textarea { resize: vertical; min-height: 130px; }
.checkboxes { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 20px; }
.checkbox-item { display: flex; align-items: center; gap: 10px; padding: 12px 16px; background: rgba(28,31,36,0.03); border: 1px solid var(--border); border-radius: 10px; cursor: pointer; transition: all .3s; }
.checkbox-item:hover { border-color: var(--accent); }
.checkbox-item input { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }
.checkbox-item label { font-size: 14px; cursor: pointer; }
.file-upload { border: 2px dashed var(--border); border-radius: 12px; padding: 32px; text-align: center; cursor: pointer; transition: all .3s; margin-bottom: 20px; }
.file-upload:hover { border-color: var(--accent); background: rgba(47,143,216,0.04); }
.file-upload-icon { font-size: 36px; margin-bottom: 12px; }
.file-upload p { font-size: 14px; color: var(--text-muted); }
.file-upload p span { color: var(--accent); font-weight: 600; }
.form-submit { text-align: center; margin-top: 32px; }
.form-submit .btn { font-size: 16px; padding: 16px 48px; }
.form-note { font-size: 13px; color: var(--text-muted); margin-top: 12px; }
.form-success { display: none; text-align: center; padding: 40px; }
.form-success i { font-size: 60px; color: var(--green); margin-bottom: 16px; }
.form-success h3 { font-size: 24px; margin-bottom: 10px; }
.form-success p { color: var(--text-muted); }

/* ── CONTACT ── */
#contact { background: linear-gradient(180deg, #edf2f8 0%, var(--bg-dark) 100%); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; gap: 20px; align-items: flex-start; padding: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; transition: all .3s; }
.contact-item:hover { border-color: rgba(47,143,216,0.3); }
.contact-item-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(47,143,216,0.12); display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.contact-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.contact-item p, .contact-item a { font-size: 14px; color: var(--text-muted); text-decoration: none; transition: color .2s; }
.contact-item a:hover { color: var(--accent); }
.social-links { display: flex; gap: 12px; flex-wrap: wrap; }
.social-link { width: 44px; height: 44px; border-radius: 10px; background: var(--bg-card); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 18px; text-decoration: none; color: var(--text-muted); transition: all .3s; }
.social-link:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-3px); }
.quick-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.map-placeholder { background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px; height: 400px; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 16px; font-size: 48px; color: var(--text-muted); text-align: center; position: relative; overflow: hidden; }
.map-placeholder::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at center, rgba(47,143,216,0.06), transparent); }
.map-placeholder p { font-size: 15px; color: var(--text-muted); position: relative; }
.map-embed { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ── FOOTER ── */
#footer { background: #e9eef4; border-top: 1px solid var(--border); padding: 70px 0 30px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin: 16px 0 24px; max-width: 300px; }
.footer-col h5 { font-size: 14px; font-weight: 700; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 1px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 14px; color: var(--text-muted); text-decoration: none; transition: color .2s; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 28px; border-top: 1px solid rgba(28,31,36,0.05); }
.footer-bottom p { font-size: 13px; color: var(--text-muted); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 13px; color: var(--text-muted); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }

/* ── SCROLL TO TOP ── */
#scroll-top { position: fixed; bottom: 30px; right: 30px; width: 46px; height: 46px; background: var(--accent); border-radius: 12px; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; pointer-events: none; transition: all .3s; z-index: 999; color: #fff; font-size: 18px; border: none; }
#scroll-top.visible { opacity: 1; pointer-events: all; }
#scroll-top:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(47,143,216,0.4); }

/* ── TOAST ── */
.toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--bg-card); border: 1px solid var(--accent); border-radius: 12px; padding: 16px 24px; font-size: 15px; font-weight: 500; opacity: 0; transition: all .4s; z-index: 9999; display: flex; align-items: center; gap: 10px; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.success { border-color: var(--green); }
.toast.success i { color: var(--green); }

/* ── COLOR THEMES FOR CARDS ── */
.blue   { background: rgba(47,143,216,0.12); color: #1f7fc4; }
.cyan   { background: rgba(245,130,32,0.12);  color: #e06f10; }
.purple { background: rgba(47,143,216,0.10); color: #2f8fd8; }
.green  { background: rgba(16,185,129,0.12); color: #059669; }
.orange { background: rgba(245,130,32,0.12); color: #e06f10; }
.pink   { background: rgba(245,130,32,0.10); color: #f58220; }

/* ── ADMIN (demandes de devis) ── */
#admin-page { min-height: 100vh; padding: 120px 0 60px; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; flex-wrap: wrap; gap: 16px; }
.admin-filters { display: flex; gap: 10px; margin-bottom: 28px; }
.admin-filter { padding: 8px 20px; border-radius: 50px; border: 1px solid var(--border); background: var(--bg-card); color: var(--text-muted); font-size: 14px; cursor: pointer; transition: all .2s; font-family: 'Inter', sans-serif; }
.admin-filter.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.request-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; margin-bottom: 16px; }
.request-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.request-name { font-size: 17px; font-weight: 700; }
.request-date { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.request-badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 20px; white-space: nowrap; }
.request-badge.nouveau { background: rgba(245,130,32,0.14); color: #e06f10; }
.request-badge.traité  { background: rgba(16,185,129,0.14); color: #059669; }
.request-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 14px; margin-bottom: 16px; font-size: 14px; }
.request-grid div span { display: block; color: var(--text-muted); font-size: 12px; margin-bottom: 3px; }
.request-grid div a { color: var(--text); text-decoration: none; }
.request-grid div a:hover { color: var(--accent); }
.request-desc { background: var(--bg-dark); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; font-size: 14px; white-space: pre-wrap; margin-bottom: 16px; line-height: 1.6; }
.request-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.admin-empty { text-align: center; padding: 100px 20px; color: var(--text-muted); }
.admin-empty i { font-size: 48px; margin-bottom: 16px; display: block; opacity: .5; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .grid-4, .sectors-grid, .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .stats-wrapper { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
  .bim-benefits { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero-content { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .services-grid, .why-grid, .contact-grid, .faq-grid, .grid-2 { grid-template-columns: 1fr; }
  .portfolio-grid, .blog-grid, .bim-benefits { grid-template-columns: 1fr 1fr; }
  .sectors-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-container { padding: 32px 24px; }
  .stats-wrapper { padding: 40px 24px; grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .process-steps { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
}
@media (max-width: 480px) {
  .portfolio-grid, .blog-grid, .bim-benefits { grid-template-columns: 1fr; }
  .checkboxes { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .stats-wrapper { grid-template-columns: 1fr; }
}