:root {
  --bg: #0b1220;
  --bg-alt: #101a2c;
  --surface: #141f36;
  --border: #24324d;
  --text: #e9edf5;
  --text-muted: #9aa7bd;
  --accent: #4fd1a5;
  --accent-strong: #34b389;
  --max-width: 1080px;
  --radius: 10px;
  font-size: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 0.5em; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 18, 32, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  font-size: 1.05rem;
}

.nav { display: flex; gap: 24px; }
.nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.nav a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  max-width: 18ch;
  margin-bottom: 20px;
}

.hero-sub {
  color: var(--text-muted);
  max-width: 60ch;
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--accent);
  color: #05140f;
}
.btn-primary:hover { background: var(--accent-strong); }

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Services */
.services { padding: 80px 0; border-bottom: 1px solid var(--border); }

.services h2, .preuves h2, .contact h2 { font-size: 1.8rem; }

.section-intro {
  color: var(--text-muted);
  margin-bottom: 24px;
  max-width: 60ch;
}

.stack-carousel-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 48px;
}

.stack-carousel {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding: 4px 2px 12px;
}
.stack-carousel::-webkit-scrollbar { display: none; }

.stack-card {
  flex: 0 0 220px;
  scroll-snap-align: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.stack-card h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 14px;
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.stack-tags li {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.85rem;
  color: var(--text);
}

.carousel-btn {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
}
.carousel-btn:hover { border-color: var(--accent); color: var(--accent); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.card-highlight {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}

.card-icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: 16px;
}
.card-icon svg { width: 100%; height: 100%; }

.card h3 { font-size: 1.15rem; }

.card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text);
  font-size: 0.92rem;
}
.card li { margin-bottom: 6px; }

/* Preuves */
.preuves { padding: 80px 0; border-bottom: 1px solid var(--border); }

.temoignages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.temoignage {
  margin: 0;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  font-size: 0.95rem;
}
.temoignage p { margin: 0 0 12px; color: var(--text); }
.temoignage footer { color: var(--text-muted); font-size: 0.85rem; }

/* Contact */
.contact { padding: 80px 0 96px; }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-text p { color: var(--text-muted); max-width: 42ch; }
.contact-links { color: var(--text); }
.contact-links a { font-weight: 600; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.contact-form label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 10px;
}

.contact-form input,
.contact-form textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form button { margin-top: 18px; align-self: flex-start; cursor: pointer; }

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
}
.site-footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 0;
}
.site-footer a {
  color: var(--text-muted);
  margin-left: 12px;
}
.site-footer a:hover { color: var(--accent); }

/* Legal page */
.legal { padding: 56px 0 96px; }
.legal h1 { font-size: 1.8rem; margin-bottom: 32px; }
.legal h2 { font-size: 1.1rem; margin-top: 32px; }
.legal p { color: var(--text-muted); max-width: 65ch; }
.legal a { color: var(--accent); }

/* Responsive */
@media (max-width: 720px) {
  .nav { gap: 16px; }
  .hero { padding: 64px 0 48px; }
  .services, .preuves { padding: 56px 0; }
  .contact { padding: 56px 0 64px; }
  .contact-inner { grid-template-columns: 1fr; }
  .carousel-btn { display: none; }
}