/* ===========================================================================
   ArchiCadia v3.0 — Feuille de style marketing — VARIANTE CLAIRE
   UpFmIA — Identité validée : palette Nuit/Marine/Ocre, Syne 800
   Fond clair chaud (Ivoire) pour le confort visuel en session longue.
   =========================================================================== */

:root {
  --nuit:    #0F1923;
  --marine:  #1C2E42;
  --ocre:    #C8914A;
  --ocre-d:  #A97534;   /* ocre assombri pour le texte sur fond clair */
  --bleu-cad:#4A7A9B;
  --ivoire:  #F0EDE6;
  --ardoise: #6B7A8D;

  /* Rôles (thème clair) */
  --bg:       #F4F1EA;          /* fond chaud, plus doux que le blanc pur */
  --surface:  #FBFAF6;          /* cartes / panneaux */
  --surface-2:#FFFFFF;
  --text:     #182634;          /* texte principal (proche Nuit, adouci) */
  --text-mut: #5C6B7A;          /* texte secondaire */
  --line:     rgba(28,46,66,.12);
  --line-str: rgba(28,46,66,.20);

  --maxw: 1180px;
  --r:    14px;

  --f-display: "Syne", system-ui, sans-serif;
  --f-body:    "Spectral", Georgia, serif;
  --f-mono:    "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--f-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(900px 600px at 82% -8%, rgba(200,145,74,.10), transparent 60%),
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: auto, 46px 46px, 46px 46px;
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; }

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

.mono {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--bleu-cad);
}

/* ---------- Header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(244,241,234,.82);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 28px; height: 70px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo { width: 38px; height: 38px; }
.brand b {
  font-family: var(--f-display); font-weight: 800;
  font-size: 1.28rem; letter-spacing: -.01em; color: var(--nuit);
}
.nav nav { display: flex; gap: 26px; margin-left: auto; font-size: .95rem; }
.nav nav a { color: var(--text-mut); transition: color .2s; }
.nav nav a:hover { color: var(--nuit); }
.lang { display: flex; gap: 2px; font-family: var(--f-mono); font-size: .72rem; }
.lang a { padding: 5px 9px; border: 1px solid var(--line-str); border-radius: 7px; color: var(--text-mut); }
.lang a.on { background: var(--ocre); color: #fff; border-color: var(--ocre); font-weight: 600; }
.btn {
  font-family: var(--f-display); font-weight: 700; font-size: .92rem;
  background: var(--ocre); color: #fff;
  padding: 11px 20px; border-radius: 9px; border: 0; cursor: pointer;
  transition: transform .15s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(200,145,74,.32); }
.btn.ghost { background: transparent; color: var(--nuit); border: 1px solid var(--line-str); }
.btn.ghost:hover { border-color: var(--ocre); box-shadow: none; }

/* ---------- Hero ---------- */
.hero { padding: 92px 0 64px; position: relative; }
.hero .eyebrow { margin-bottom: 22px; }
.hero h1 {
  font-family: var(--f-display); font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 4.3rem); line-height: 1.02;
  letter-spacing: -.02em; max-width: 14ch; color: var(--nuit);
}
.hero h1 .accent { color: var(--ocre-d); }
.hero p.lead {
  margin: 26px 0 34px; font-size: 1.22rem; color: #3c4a57;
  max-width: 56ch;
}
.hero .cta { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero .pipe {
  margin-top: 56px; display: flex; flex-wrap: wrap; gap: 0;
  border: 1px solid var(--line-str); border-radius: var(--r);
  overflow: hidden; background: var(--surface);
  box-shadow: 0 8px 30px rgba(28,46,66,.06);
}
.hero .pipe .step {
  flex: 1 1 160px; padding: 18px 20px;
  border-right: 1px solid var(--line);
}
.hero .pipe .step:last-child { border-right: 0; }
.hero .pipe .step .n { font-family: var(--f-mono); font-size: .7rem; color: var(--ocre-d); }
.hero .pipe .step .t { font-family: var(--f-display); font-weight: 700; margin-top: 6px; font-size: 1rem; color: var(--nuit); }

/* ---------- Sections ---------- */
section { padding: 74px 0; border-top: 1px solid var(--line); }
.sec-head { max-width: 60ch; margin-bottom: 44px; }
.sec-head h2 {
  font-family: var(--f-display); font-weight: 800;
  font-size: clamp(1.7rem, 3.5vw, 2.5rem); letter-spacing: -.015em;
  margin: 14px 0 12px; color: var(--nuit);
}
.sec-head p { color: var(--text-mut); font-size: 1.1rem; }

/* feature grid */
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--surface);
  border: 1px solid var(--line-str); border-radius: var(--r);
  padding: 26px;
  box-shadow: 0 6px 22px rgba(28,46,66,.05);
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(28,46,66,.09); }
.card .ic {
  width: 42px; height: 42px; border-radius: 10px; margin-bottom: 16px;
  display: grid; place-items: center;
  background: rgba(200,145,74,.14); color: var(--ocre-d);
}
.card h3 { font-family: var(--f-display); font-weight: 700; font-size: 1.2rem; margin-bottom: 8px; color: var(--nuit); }
.card p { color: var(--text-mut); font-size: .98rem; }
.badge {
  display: inline-block; font-family: var(--f-mono); font-size: .64rem;
  letter-spacing: .14em; text-transform: uppercase;
  color: #fff; background: var(--ocre);
  padding: 3px 9px; border-radius: 20px; margin-bottom: 14px;
}

/* styles showcase */
.styles { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.style {
  border: 1px solid var(--line-str); border-radius: 12px; padding: 20px;
  background: var(--surface); transition: border-color .2s, transform .2s, box-shadow .2s;
}
.style:hover { border-color: var(--ocre); transform: translateY(-3px); box-shadow: 0 12px 28px rgba(28,46,66,.08); }
.style .region { font-family: var(--f-mono); font-size: .66rem; color: var(--bleu-cad); letter-spacing: .12em; text-transform: uppercase; }
.style .name { font-family: var(--f-display); font-weight: 700; font-size: 1.12rem; margin-top: 8px; text-transform: capitalize; color: var(--nuit); }

/* pricing */
.plans { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.plan {
  border: 1px solid var(--line-str); border-radius: var(--r); padding: 30px;
  background: var(--surface);
  box-shadow: 0 6px 22px rgba(28,46,66,.05);
}
.plan.feat { border-color: var(--ocre); box-shadow: 0 18px 46px rgba(200,145,74,.18); background: var(--surface-2); }
.plan .pname { font-family: var(--f-display); font-weight: 800; font-size: 1.3rem; color: var(--nuit); }
.plan .price { font-family: var(--f-display); font-weight: 800; font-size: 2.6rem; margin: 14px 0 4px; color: var(--nuit); }
.plan .price span { font-size: 1rem; color: var(--text-mut); font-weight: 400; }
.plan ul { list-style: none; margin: 20px 0 26px; }
.plan li { padding: 7px 0 7px 26px; position: relative; color: #41505d; font-size: .96rem; }
.plan li::before { content: "→"; position: absolute; left: 0; color: var(--ocre-d); }

/* footer */
footer { border-top: 1px solid var(--line-str); padding: 48px 0 60px; color: var(--text-mut); font-size: .9rem; background: var(--surface); }
footer .frow { display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; align-items: center; }
footer a:hover { color: var(--nuit); }
.legal { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .06em; margin-top: 22px; color: #8a96a2; }

/* responsive */
@media (max-width: 860px) {
  .g2, .g3, .styles, .plans { grid-template-columns: 1fr; }
  .nav nav { display: none; }
  .hero { padding: 60px 0 40px; }
}