/* ══════════════════════════════════════════════════════════════
   FATHIE-SOHLA GROUPS — Design System
   Identité : noir profond · bleu numérique · violet · or (§5)
   ══════════════════════════════════════════════════════════════ */

:root {
  --ink: #05060a;
  --ink-soft: #0b0e17;
  --ink-card: #11131f;
  --digital: #2563ff;
  --digital-light: #5b8bff;
  --tech: #7c3aed;
  --tech-light: #a78bfa;
  --gold: #e9b949;
  --gold-light: #f5d67f;
  --gold-dark: #c8952b;
  --white: #ffffff;
  --muted: rgba(255, 255, 255, 0.6);
  --muted-2: rgba(255, 255, 255, 0.4);
  --line: rgba(255, 255, 255, 0.1);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --radius: 16px;
  --max: 1200px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  background: var(--ink);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 20% -10%, rgba(37, 99, 255, 0.14), transparent 45%),
    radial-gradient(circle at 90% 5%, rgba(124, 58, 237, 0.12), transparent 45%);
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

::selection { background: rgba(233, 185, 73, 0.3); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--digital), var(--tech)); border-radius: 999px; }

/* ── Layout ── */
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
@media (min-width: 640px) { .container { padding: 0 32px; } }

.section { padding: 80px 0; position: relative; }
@media (min-width: 768px) { .section { padding: 112px 0; } }
.section-alt { background: rgba(255, 255, 255, 0.015); }

/* ── Typographie ── */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; }
.h-section { font-size: clamp(1.9rem, 4vw, 3rem); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid rgba(233, 185, 73, 0.3); background: rgba(233, 185, 73, 0.05);
  color: var(--gold-light); padding: 6px 16px; border-radius: 999px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }

.text-gradient {
  background: linear-gradient(90deg, #fff, rgba(255,255,255,0.6));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.text-gradient-brand {
  background: linear-gradient(90deg, var(--digital-light), var(--tech-light), var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.text-gradient-gold {
  background: linear-gradient(90deg, var(--gold-light), var(--gold), var(--gold-dark));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.text-muted { color: var(--muted); }
.center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }

/* ── Boutons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-size: 14px; font-weight: 600;
  border: none; transition: transform .25s, box-shadow .25s, background .25s, border-color .25s;
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--digital-light); outline-offset: 2px; }
.btn-primary {
  background: linear-gradient(90deg, var(--digital), var(--tech)); color: #fff;
  box-shadow: 0 10px 40px -10px rgba(37, 99, 255, 0.7);
}
.btn-primary:hover { transform: scale(1.03); }
.btn-gold { background: linear-gradient(90deg, var(--gold), var(--gold-dark)); color: var(--ink); }
.btn-gold:hover { transform: scale(1.03); }
.btn-ghost { background: rgba(255,255,255,0.02); color: #fff; border: 1px solid rgba(255,255,255,0.15); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.4); background: rgba(255,255,255,0.06); }
.btn-block { width: 100%; }

/* ── Cartes ── */
.card {
  background: rgba(255,255,255,0.03); border: 1px solid var(--line);
  border-radius: var(--radius); backdrop-filter: blur(12px);
  transition: transform .3s, border-color .3s, background .3s, box-shadow .3s;
}
.card-hover:hover {
  transform: translateY(-4px); border-color: rgba(37,99,255,0.4);
  background: rgba(255,255,255,0.05); box-shadow: 0 20px 60px -20px rgba(37,99,255,0.5);
}

/* ── Grilles ── */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ── En-tête / Navigation ── */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: rgba(5,6,10,0.8); backdrop-filter: blur(16px); border-bottom-color: var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  position: relative; width: 36px; height: 36px; border-radius: 11px;
  display: grid; place-items: center; font-family: var(--font-display); font-weight: 700;
  font-size: 18px; color: #fff; background: linear-gradient(135deg, var(--digital), var(--tech));
  box-shadow: 0 6px 20px -6px rgba(37,99,255,0.8);
}
.logo-mark::after { content: ''; position: absolute; top: -2px; right: -2px; width: 10px; height: 10px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 2px var(--ink); }
.logo-text { font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: -0.01em; }
.nav-links { display: none; align-items: center; gap: 4px; }
@media (min-width: 1024px) { .nav-links { display: flex; } }
.nav-links a { padding: 8px 14px; border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--muted); transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-cta { display: none; } @media (min-width: 1024px) { .nav-cta { display: inline-flex; } }
.nav-toggle { display: inline-flex; background: transparent; border: 1px solid var(--line); border-radius: 10px; padding: 8px; color: #fff; }
@media (min-width: 1024px) { .nav-toggle { display: none; } }
.mobile-menu { display: none; border-top: 1px solid var(--line); background: rgba(5,6,10,0.97); backdrop-filter: blur(16px); }
.mobile-menu.open { display: block; }
.mobile-menu ul { display: flex; flex-direction: column; gap: 2px; padding: 16px 0; }
.mobile-menu a { padding: 12px; border-radius: 10px; font-weight: 500; color: rgba(255,255,255,0.8); }
.mobile-menu a:hover { background: rgba(255,255,255,0.05); }

main { padding-top: 72px; }

/* ── Hero ── */
.hero { position: relative; min-height: 92vh; display: flex; align-items: center; overflow: hidden; }
.hero-grid-bg {
  position: absolute; inset: 0; opacity: .4; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at center, black, transparent 75%);
  mask-image: radial-gradient(ellipse at center, black, transparent 75%);
}
.hero-inner { position: relative; z-index: 2; display: grid; gap: 40px; align-items: center; width: 100%; padding: 96px 0; }
@media (min-width: 1024px) { .hero-inner { grid-template-columns: 1fr 1fr; } }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.75rem); margin: 24px 0; }
.hero p.lead { font-size: 1.125rem; color: var(--muted); max-width: 36rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 36px; }
.hero-3d { position: relative; height: 340px; }
@media (min-width: 640px) { .hero-3d { height: 440px; } }
@media (min-width: 1024px) { .hero-3d { height: 560px; } }
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-3d-glow { position: absolute; inset: 0; border-radius: 50%; filter: blur(40px);
  background: linear-gradient(to top right, rgba(37,99,255,0.1), rgba(124,58,237,0.1), transparent); }

/* ── Statistiques ── */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,0.02); }
.stats .grid { padding: 56px 0; }
.stat-value { font-family: var(--font-display); font-weight: 700; font-size: clamp(2rem, 4vw, 3rem); }
.stat-label { color: var(--muted); font-size: 14px; margin-top: 8px; }

/* ── Cartes d'expertise / service ── */
.icon-box {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(37,99,255,0.2), rgba(124,58,237,0.2)); color: var(--digital-light);
  transition: background .3s, color .3s;
}
.card-hover:hover .icon-box { background: linear-gradient(135deg, var(--digital), var(--tech)); color: #fff; }
.feature-list { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.feature-list li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.feature-list svg { color: var(--gold); flex-shrink: 0; }
.chip { display: inline-block; background: rgba(255,255,255,0.05); color: var(--muted); font-size: 12px; padding: 5px 10px; border-radius: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }

/* ── Carte réalisation ── */
.real-card { overflow: hidden; display: flex; flex-direction: column; height: 100%; }
.real-card .thumb { position: relative; aspect-ratio: 16/10; overflow: hidden; background: linear-gradient(135deg, rgba(37,99,255,0.2), var(--ink-card), rgba(124,58,237,0.2)); }
.real-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.real-card:hover .thumb img { transform: scale(1.05); }
.real-card .sector { position: absolute; top: 12px; left: 12px; background: rgba(5,6,10,0.7); border: 1px solid rgba(255,255,255,0.15); backdrop-filter: blur(6px); border-radius: 999px; padding: 4px 12px; font-size: 12px; }
.real-card .body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.real-card h3 { font-size: 1.125rem; }
.real-card .body p { color: var(--muted); font-size: 14px; margin: 8px 0; flex: 1; }

/* ── Processus ── */
.process { position: relative; margin-top: 64px; }
.process-line { position: absolute; top: 28px; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent); display: none; }
@media (min-width: 1024px) { .process-line { display: block; } }
.process-grid { display: grid; gap: 32px; grid-template-columns: repeat(5, 1fr); }
@media (max-width: 900px) { .process-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .process-grid { grid-template-columns: 1fr; } }
.process-num {
  width: 56px; height: 56px; margin: 0 auto; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--line); background: var(--ink-card); font-family: var(--font-display);
  font-weight: 700; font-size: 20px; position: relative; z-index: 1;
}

/* ── CTA ── */
.cta-box {
  position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 24px;
  padding: 48px 24px; text-align: center;
  background: linear-gradient(135deg, rgba(37,99,255,0.15), var(--ink-card), rgba(124,58,237,0.15));
}
@media (min-width: 640px) { .cta-box { padding: 64px; } }

/* ── Formulaires ── */
.field { margin-bottom: 4px; }
.field label { display: block; font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.8); margin-bottom: 6px; }
.input, .textarea, .select {
  width: 100%; background: rgba(255,255,255,0.05); border: 1px solid var(--line);
  border-radius: 12px; padding: 12px 16px; color: #fff; font-size: 14px; font-family: inherit;
  transition: border-color .2s;
}
.input::placeholder, .textarea::placeholder { color: rgba(255,255,255,0.35); }
.input:focus, .textarea:focus, .select:focus { outline: none; border-color: rgba(37,99,255,0.5); }
.select option { background: var(--ink); }
.form-row { display: grid; gap: 20px; grid-template-columns: 1fr 1fr; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.alert { border-radius: 12px; padding: 12px 16px; font-size: 14px; }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }

/* ── Pied de page ── */
.footer { border-top: 1px solid var(--line); background: var(--ink-soft); }
.footer-grid { display: grid; gap: 48px; padding: 64px 0; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 18px; }
.footer a { color: var(--muted); font-size: 14px; transition: color .2s; }
.footer a:hover { color: #fff; }
.footer li { margin-bottom: 12px; }
.social { display: flex; gap: 12px; margin-top: 20px; }
.social a { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); }
.social a:hover { border-color: rgba(37,99,255,0.4); color: #fff; }
.footer-bottom { border-top: 1px solid var(--line); }
.footer-bottom .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 24px 20px; font-size: 12px; color: var(--muted-2); }

/* ── Section détail (réalisation / article) ── */
.detail-hero { padding-top: 40px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.badge { background: rgba(255,255,255,0.05); border: 1px solid var(--line); border-radius: 999px; padding: 5px 14px; font-size: 13px; color: var(--muted); }
.prose { max-width: 46rem; }
.prose p { color: rgba(255,255,255,0.75); margin-bottom: 20px; }
.detail-media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.feature-list-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .feature-list-2 { grid-template-columns: 1fr; } }

/* ── Chatbot ── */
.chatbot-toggle {
  position: fixed; bottom: 20px; right: 20px; z-index: 60; width: 56px; height: 56px;
  border-radius: 50%; border: none; display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, var(--digital), var(--tech));
  box-shadow: 0 10px 40px -8px rgba(37,99,255,0.8); transition: transform .2s;
}
.chatbot-toggle:hover { transform: scale(1.05); }
.chatbot-panel {
  position: fixed; bottom: 88px; right: 20px; z-index: 60; width: calc(100vw - 40px); max-width: 384px;
  height: 512px; display: none; flex-direction: column; overflow: hidden;
  background: var(--ink-card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 25px 80px -20px rgba(0,0,0,0.6);
}
.chatbot-panel.open { display: flex; }
.chatbot-head { display: flex; align-items: center; gap: 12px; padding: 16px; border-bottom: 1px solid var(--line); background: linear-gradient(90deg, rgba(37,99,255,0.2), rgba(124,58,237,0.2)); }
.chatbot-avatar { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: linear-gradient(135deg, var(--digital), var(--tech)); }
.chatbot-body { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.msg { max-width: 85%; padding: 10px 14px; border-radius: 16px; font-size: 14px; }
.msg.bot { align-self: flex-start; background: rgba(255,255,255,0.05); border: 1px solid var(--line); }
.msg.user { align-self: flex-end; background: linear-gradient(135deg, var(--digital), var(--tech)); color: #fff; }
.chatbot-suggest { display: flex; flex-direction: column; gap: 8px; }
.chatbot-suggest button { text-align: left; background: rgba(255,255,255,0.03); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; font-size: 12px; color: var(--muted); }
.chatbot-suggest button:hover { border-color: rgba(37,99,255,0.4); color: #fff; }
.chatbot-foot { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); }
.chatbot-foot input { flex: 1; background: rgba(255,255,255,0.05); border: 1px solid var(--line); border-radius: 999px; padding: 10px 16px; color: #fff; font-size: 14px; }
.chatbot-foot input:focus { outline: none; border-color: rgba(37,99,255,0.5); }
.chatbot-send { width: 40px; height: 40px; border-radius: 50%; border: none; display: grid; place-items: center; background: linear-gradient(135deg, var(--digital), var(--tech)); color: #fff; }

/* ── Animations d'apparition (scroll reveal) ── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1); }
.reveal.visible { opacity: 1; transform: none; }

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.float { animation: float 6s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* ── Utilitaires ── */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-4 { gap: 16px; }
.mt-4 { margin-top: 16px; } .mt-8 { margin-top: 32px; } .mt-12 { margin-top: 48px; }
.hidden { display: none; }