/* ════════════════════════════════════════════════════════════════
   GROUP ECO SYSTEM — groupecosystem.fr  ·  Design system v4
   Direction : clair, premium, rassurant (codes du secteur — type Effy).
   Aligné sur le logo GES : bleu vif + bleu nuit, blanc dominant, Manrope.
   ════════════════════════════════════════════════════════════════ */

:root {
  /* Bleus de marque (logo GES) */
  --blue-700: #0f6fc0;
  --blue-600: #1683d4;
  --blue-500: #1f9ff0;   /* bleu vif du logo */
  --blue-400: #4fb4f4;
  --blue-300: #8fd0f8;

  /* Bleu nuit */
  --navy-950: #0a1d33;
  --navy-900: #0d2742;
  --navy-800: #143456;
  --navy-700: #1d4773;

  /* Ciel / fonds doux */
  --sky-50:  #f2f8fd;
  --sky-100: #e6f2fc;
  --sky-200: #cfe7f8;

  /* Accent éco (touche) */
  --eco-500: #16b67e;
  --eco-bg:  #e4f7ef;

  /* Neutres */
  --white: #ffffff;
  --paper: #ffffff;
  --line: #e7edf3;
  --line-2: #d8e2ec;
  --ink: #0f2742;
  --ink-2: #28405a;
  --text: #51647a;
  --muted: #8295a8;

  --grad-blue: linear-gradient(135deg, #2aa6f2 0%, #1683d4 100%);
  --grad-navy: linear-gradient(150deg, #143456 0%, #0a1d33 100%);
  --grad-text: linear-gradient(96deg, #1f9ff0 0%, #16b67e 100%);

  --shadow-xs: 0 1px 2px rgba(13, 39, 66, .06);
  --shadow-sm: 0 2px 10px -2px rgba(13, 39, 66, .1);
  --shadow-md: 0 10px 34px -12px rgba(13, 39, 66, .22);
  --shadow-lg: 0 30px 70px -26px rgba(13, 39, 66, .32);
  --shadow-blue: 0 14px 30px -10px rgba(31, 159, 240, .5);

  --r-xs: 10px; --r-sm: 14px; --r-md: 20px; --r-lg: 26px; --r-xl: 36px;
  --container: 1200px;
  --header-h: 80px;

  --f-display: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* Compat anciennes classes */
  --green-50: var(--sky-50);
  --green-100: var(--sky-200);
  --emerald-600: var(--blue-600);
  --emerald-500: var(--blue-500);
  --amber-600: var(--eco-500);
  --surface: var(--white);
  --bg: var(--white);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 18px); }
body {
  font-family: var(--f-body); font-size: 16px; line-height: 1.7;
  color: var(--text); background: var(--white);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
::selection { background: #1f9ff033; color: var(--ink); }
img { max-width: 100%; display: block; }

h1, h2, h3, h4 { font-family: var(--f-display); color: var(--ink); line-height: 1.12; font-weight: 800; letter-spacing: -.025em; }
h1 { font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -.035em; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.7rem); letter-spacing: -.03em; }
h3 { font-size: 1.2rem; letter-spacing: -.02em; }

a { color: var(--blue-600); text-decoration: none; transition: color .15s; }
a:hover { color: var(--blue-500); }
strong { font-weight: 600; color: var(--ink-2); }
p strong, li strong { color: var(--ink); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 26px; }
section { padding: 96px 0; }
section.tight { padding: 64px 0; }
.bg-sky { background: var(--sky-50); }

.grad { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ── Étiquettes ──────────────────────────────────────────────── */
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-family: var(--f-body); font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--blue-600); margin-bottom: 20px; }
.eyebrow::before { content: ""; width: 22px; height: 2px; border-radius: 2px; background: var(--blue-500); }
.eyebrow.eco { color: var(--eco-500); }
.eyebrow.eco::before { background: var(--eco-500); }
.on-dark .eyebrow { color: var(--blue-300); }
.section-head { max-width: 720px; margin-bottom: 54px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head p { margin-top: 16px; font-size: 1.1rem; }

/* ── Boutons ─────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-family: var(--f-body); font-weight: 600; font-size: .98rem; padding: 15px 28px; border-radius: 999px; border: 0; cursor: pointer; transition: transform .16s ease, box-shadow .16s ease, background-color .16s, color .16s, border-color .16s; white-space: nowrap; letter-spacing: -.01em; }
.btn svg { width: 18px; height: 18px; flex: none; transition: transform .18s ease; }
.btn:hover { transform: translateY(-2px); }
.btn:hover svg.arrow { transform: translateX(4px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--grad-blue); color: #fff; box-shadow: var(--shadow-blue); }
.btn-primary:hover { color: #fff; box-shadow: 0 18px 38px -12px rgba(31,159,240,.62); }
.btn-navy { background: var(--navy-900); color: #fff; box-shadow: var(--shadow-md); }
.btn-navy:hover { background: var(--navy-800); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line-2); }
.btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-600); background: var(--sky-50); }
.btn-white { background: #fff; color: var(--navy-900); box-shadow: var(--shadow-md); }
.btn-white:hover { color: var(--blue-600); }
.btn-lg { padding: 17px 34px; font-size: 1.04rem; }

/* ── Header ──────────────────────────────────────────────────── */
.site-header { position: sticky; top: 0; z-index: 90; background: rgba(255,255,255,.86); backdrop-filter: blur(16px) saturate(1.4); -webkit-backdrop-filter: blur(16px) saturate(1.4); border-bottom: 1px solid var(--line); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: var(--header-h); }
.brand { display: flex; align-items: center; }
.brand img { height: 50px; width: auto; }
.main-nav { display: flex; align-items: center; gap: 2px; }
.main-nav a { font-weight: 500; font-size: .94rem; color: var(--ink-2); padding: 9px 14px; border-radius: 999px; transition: color .15s, background-color .15s; }
.main-nav a:hover { color: var(--blue-600); background: var(--sky-100); }
.main-nav a[aria-current="page"] { color: var(--blue-600); background: var(--sky-100); }
.header-cta { display: flex; align-items: center; gap: 14px; }
.phone-link { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: .96rem; color: var(--ink); }
.phone-link:hover { color: var(--blue-600); }
.phone-link svg { width: 18px; height: 18px; color: var(--blue-500); }
.header-cta .btn { padding: 12px 22px; font-size: .9rem; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; width: 44px; height: 44px; border-radius: 12px; color: var(--navy-900); align-items: center; justify-content: center; }
.nav-toggle svg { width: 25px; height: 25px; }
.nav-toggle:hover { background: var(--sky-100); }

/* ── Hero ────────────────────────────────────────────────────── */
.hero { position: relative; overflow: hidden; padding: 64px 0 40px; background: linear-gradient(180deg, var(--sky-50) 0%, #fff 100%); }
.hero::before { content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none; background: radial-gradient(680px 420px at 90% 2%, rgba(31,159,240,.12) 0%, transparent 60%); }
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 58px; align-items: center; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.pill { display: inline-flex; align-items: center; gap: 8px; font-size: .8rem; font-weight: 600; color: var(--ink-2); background: #fff; border: 1px solid var(--line); padding: 8px 15px; border-radius: 999px; box-shadow: var(--shadow-xs); }
.pill svg { width: 15px; height: 15px; flex: none; }
.pill.blue svg { color: var(--blue-500); }
.pill.eco svg { color: var(--eco-500); }
.hero h1 { margin: 0; }
.hero p.lead { margin: 24px 0 30px; font-size: 1.18rem; line-height: 1.7; max-width: 540px; color: var(--ink-2); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-foot { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 38px; padding-top: 30px; border-top: 1px solid var(--line); }
.hero-foot .fact b { font-family: var(--f-display); font-size: 1.6rem; font-weight: 800; color: var(--ink); display: block; line-height: 1; letter-spacing: -.03em; }
.hero-foot .fact b span { color: var(--blue-500); }
.hero-foot .fact small { font-size: .84rem; color: var(--muted); }

.hero-visual { position: relative; }
.hero-visual .frame { position: relative; border-radius: var(--r-xl); overflow: hidden; box-shadow: var(--shadow-lg); }
.hero-visual .frame img { width: 100%; aspect-ratio: 4/4.3; object-fit: cover; }
.hero-card { position: absolute; z-index: 2; display: flex; align-items: center; gap: 13px; background: rgba(255,255,255,.92); border: 1px solid var(--line); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-radius: 16px; padding: 13px 17px; box-shadow: var(--shadow-md); font-weight: 600; color: var(--ink); font-size: .9rem; line-height: 1.3; }
.hero-card small { display: block; font-weight: 500; color: var(--muted); font-size: .78rem; margin-top: 1px; }
.hero-card .ic { width: 40px; height: 40px; border-radius: 11px; flex: none; display: flex; align-items: center; justify-content: center; }
.hero-card .ic svg { width: 21px; height: 21px; }
.ic.blue { background: var(--sky-100); color: var(--blue-600); }
.ic.eco { background: var(--eco-bg); color: var(--eco-500); }
.hero-card.tl { top: 22px; left: -26px; }
.hero-card.br { bottom: 26px; right: -22px; }

/* ── Bande marques ───────────────────────────────────────────── */
.brandstrip { background: #fff; border-bottom: 1px solid var(--line); padding: 34px 0; }
.brandstrip .container { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; justify-content: center; }
.brandstrip .lab { font-size: .82rem; font-weight: 600; color: var(--muted); flex: none; line-height: 1.35; }
.brandstrip .lab b { color: var(--ink); }
.brand-logos { display: flex; align-items: center; gap: 44px; flex-wrap: wrap; justify-content: center; }
.brand-logos img { height: 54px; width: auto; max-width: 158px; object-fit: contain; opacity: .95; filter: grayscale(.12); transition: opacity .2s, filter .2s, transform .2s; }
.brand-logos img:hover { opacity: 1; filter: none; transform: scale(1.05); }
@media (max-width: 720px) { .brand-logos { gap: 30px; } .brand-logos img { height: 42px; max-width: 124px; } }

/* ── Cartes ──────────────────────────────────────────────────── */
.cards-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.domains-grid { display: flex; flex-wrap: wrap; gap: 24px; justify-content: center; }
.domains-grid > .card { flex: 1 1 326px; max-width: 384px; }
@media (max-width: 720px) { .domains-grid > .card { flex-basis: 100%; max-width: none; } }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 32px 30px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line-2); }
.card h3 { margin-bottom: 10px; }
.card p { font-size: .96rem; }
.card .icon { width: 52px; height: 52px; border-radius: 15px; background: var(--sky-100); color: var(--blue-600); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.card .icon svg { width: 25px; height: 25px; }
.card.eco .icon { background: var(--eco-bg); color: var(--eco-500); }
.card .logo-line { height: 42px; display: flex; align-items: center; margin-bottom: 18px; }
.card .logo-line img { max-height: 42px; width: auto; }
.badge-tag { display: inline-block; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; background: var(--sky-100); color: var(--blue-600); border-radius: 999px; padding: 5px 13px; margin-bottom: 14px; width: fit-content; }
.badge-tag.amber, .badge-tag.copper, .badge-tag.eco { background: var(--eco-bg); color: var(--eco-500); }

/* ── Étapes (Comment ça marche) ──────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 30px 26px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line-2); }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); display: inline-flex; align-items: center; justify-content: center; font-family: var(--f-display); font-weight: 800; font-size: .9rem; width: 42px; height: 42px; border-radius: 999px; margin-bottom: 18px; background: var(--sky-100); color: var(--blue-600); }
.step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.step p { font-size: .92rem; }

/* ── "Comment ça marche" — schéma ────────────────────────────── */
.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.how-diagram { position: relative; background: var(--grad-navy); border-radius: var(--r-lg); padding: 38px; color: #c5d8ea; box-shadow: var(--shadow-lg); overflow: hidden; }
.how-diagram::before { content: ""; position: absolute; inset: 0; background: radial-gradient(420px 300px at 82% 8%, rgba(31,159,240,.24), transparent 60%); }
.how-diagram > * { position: relative; }
.how-flow { display: grid; gap: 13px; }
.how-step { display: flex; align-items: center; gap: 16px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: var(--r-sm); padding: 15px 18px; }
.how-step .n { width: 38px; height: 38px; flex: none; border-radius: 11px; background: rgba(31,159,240,.22); color: #7cc6f6; display: flex; align-items: center; justify-content: center; font-family: var(--f-display); font-weight: 800; }
.how-step b { color: #fff; font-weight: 600; font-size: .98rem; display: block; }
.how-step span { font-size: .85rem; color: #9fbcd4; }
.cop-badge { display: inline-flex; align-items: baseline; gap: 12px; margin-top: 20px; background: rgba(31,159,240,.16); border: 1px solid rgba(31,159,240,.34); border-radius: 14px; padding: 14px 20px; }
.cop-badge b { font-family: var(--f-display); font-size: 2rem; color: #fff; font-weight: 800; line-height: 1; }
.cop-badge span { font-size: .85rem; color: #bcd6ea; }

/* ── Comparatif ──────────────────────────────────────────────── */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.compare-col { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s, border-color .2s; }
.compare-col:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line-2); }
.compare-col .top { padding: 30px 32px; border-bottom: 1px solid var(--line); }
.compare-col .top.eau { background: linear-gradient(135deg, var(--sky-100), #fff); }
.compare-col .top.air { background: linear-gradient(135deg, var(--eco-bg), #fff); }
.compare-col h3 { font-size: 1.35rem; margin-bottom: 6px; }
.compare-col .top p { font-size: .92rem; }
.compare-col .body { padding: 28px 32px 32px; }

/* ── Listes à coches ─────────────────────────────────────────── */
.checklist { list-style: none; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 13px; align-items: flex-start; font-size: .98rem; }
.checklist li .tick, .checklist li > svg { flex: none; width: 24px; height: 24px; margin-top: 1px; }
.checklist li .tick { border-radius: 8px; background: var(--sky-100); color: var(--blue-600); display: flex; align-items: center; justify-content: center; }
.checklist li .tick svg { width: 14px; height: 14px; stroke-width: 3; }
.checklist li > svg { color: var(--blue-500); }
.checklist li b { color: var(--ink); font-weight: 600; }
.checklist.eco li .tick { background: var(--eco-bg); color: var(--eco-500); }

/* ── Split ───────────────────────────────────────────────────── */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 68px; align-items: center; }
.split-img { position: relative; }
.split-img img { border-radius: var(--r-lg); box-shadow: var(--shadow-lg); width: 100%; object-fit: cover; }
.split-img .stamp { position: absolute; bottom: -20px; left: -20px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 16px 20px; box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 13px; }
.split-img .stamp .ic { width: 44px; height: 44px; border-radius: 12px; background: var(--sky-100); color: var(--blue-600); display: flex; align-items: center; justify-content: center; flex: none; }
.split-img .stamp .ic svg { width: 23px; height: 23px; }
.split-img .stamp b { font-family: var(--f-display); color: var(--ink); display: block; font-size: 1.05rem; line-height: 1.1; }
.split-img .stamp small { font-size: .8rem; color: var(--muted); }
.split h2 + p { margin-top: 16px; font-size: 1.06rem; }

/* ── Gammes / fiches produits ────────────────────────────────── */
.ranges { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.range { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px; display: flex; flex-direction: column; gap: 14px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.range:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--line-2); }
.range .brand-logo { height: 44px; display: flex; align-items: center; }
.range .brand-logo img { max-height: 42px; max-width: 140px; width: auto; object-fit: contain; }
.range h3 { font-size: 1.15rem; }
.range .specs { list-style: none; display: grid; gap: 10px; margin-top: 4px; }
.range .specs li { display: flex; align-items: flex-start; gap: 10px; font-size: .9rem; }
.range .specs li svg { width: 17px; height: 17px; color: var(--blue-500); flex: none; margin-top: 3px; }
.range .tagline { margin-top: auto; font-size: .86rem; color: var(--muted); padding-top: 12px; border-top: 1px solid var(--line); }

/* ── Bande estimation (Effy-like) ────────────────────────────── */
.estimate { position: relative; overflow: hidden; background: var(--grad-navy); border-radius: var(--r-xl); padding: 56px 60px; color: #c5d8ea; box-shadow: var(--shadow-lg); display: grid; grid-template-columns: 1.2fr .8fr; gap: 44px; align-items: center; }
.estimate::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(520px 340px at 92% 0%, rgba(31,159,240,.26), transparent 62%); }
.estimate > * { position: relative; }
.estimate h2 { color: #fff; margin-bottom: 12px; }
.estimate p { font-size: 1.04rem; }
.estimate .est-points { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 18px; }
.estimate .est-points span { display: inline-flex; align-items: center; gap: 8px; font-size: .9rem; font-weight: 500; color: #bcd6ea; }
.estimate .est-points svg { width: 17px; height: 17px; color: #7cc6f6; }
.estimate .actions { display: flex; flex-direction: column; gap: 14px; align-items: stretch; }
.estimate .actions .btn { width: 100%; }
.estimate .phone-big { text-align: center; font-family: var(--f-display); font-size: 1.3rem; font-weight: 800; color: #fff; }
.estimate .phone-big small { display: block; font-family: var(--f-body); font-size: .8rem; font-weight: 400; color: #87a8c5; margin-top: 2px; }

/* ── Chiffres (bande sombre) ─────────────────────────────────── */
.figures { background: var(--grad-navy); position: relative; overflow: hidden; }
.figures::before { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 380px at 85% 0%, rgba(31,159,240,.18), transparent 60%); }
.figures .container { position: relative; }
.figures-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.figure b { font-family: var(--f-display); font-size: clamp(2.4rem, 4vw, 3.4rem); font-weight: 800; color: #fff; display: block; line-height: 1; letter-spacing: -.04em; margin-bottom: 12px; }
.figure b span { color: var(--blue-400); }
.figure small { color: #9fbcd4; font-size: .94rem; line-height: 1.5; display: block; }
.figures .section-head h2 { color: #fff; }
.figures .section-head p { color: #9fbcd4; }

/* ── Aides ───────────────────────────────────────────────────── */
.aides { background: var(--sky-50); }
.aide-logos-row { display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 44px; }
.aide-logos-row .chip-logo { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 16px 26px; height: 84px; display: flex; align-items: center; box-shadow: var(--shadow-xs); }
.aide-logos-row .chip-logo img { height: 48px; width: auto; }
.aide-note { margin-top: 36px; font-size: .9rem; color: var(--muted); display: flex; gap: 11px; align-items: flex-start; max-width: 800px; margin-left: auto; margin-right: auto; }
.aide-note svg { width: 18px; height: 18px; flex: none; margin-top: 3px; color: var(--blue-600); }

/* ── Garanties ───────────────────────────────────────────────── */
.guarantees { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.guarantee { display: flex; gap: 16px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 26px; }
.guarantee .ic { width: 46px; height: 46px; border-radius: 13px; background: var(--sky-100); color: var(--blue-600); display: flex; align-items: center; justify-content: center; flex: none; }
.guarantee .ic svg { width: 23px; height: 23px; }
.guarantee b { color: var(--ink); font-family: var(--f-display); font-size: 1.02rem; display: block; margin-bottom: 4px; }
.guarantee p { font-size: .9rem; }

/* ── FAQ ─────────────────────────────────────────────────────── */
.faq { max-width: 860px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 22px 26px; font-family: var(--f-display); font-weight: 700; color: var(--ink); font-size: 1.04rem; letter-spacing: -.015em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; width: 30px; height: 30px; border-radius: 999px; background: var(--sky-100) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%231683d4' stroke-width='2.4'%3E%3Cpath stroke-linecap='round' d='M12 5v14M5 12h14'/%3E%3C/svg%3E") center/14px no-repeat; transition: transform .25s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 26px 24px; font-size: .96rem; max-width: 95%; }
.faq details[open] { border-color: var(--line-2); box-shadow: var(--shadow-sm); }

/* ── CTA finale ──────────────────────────────────────────────── */
.cta-band { position: relative; overflow: hidden; background: var(--grad-navy); border-radius: var(--r-xl); padding: 66px 64px; color: #c5d8ea; display: grid; grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: center; box-shadow: var(--shadow-lg); }
.cta-band::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(560px 360px at 90% 0%, rgba(31,159,240,.24), transparent 62%); }
.cta-band > * { position: relative; }
.cta-band h2 { color: #fff; margin-bottom: 14px; }
.cta-band p { font-size: 1.05rem; }
.cta-band .actions { display: flex; flex-direction: column; gap: 14px; align-items: stretch; }
.cta-band .actions .btn { width: 100%; }
.cta-band .phone-big { text-align: center; font-family: var(--f-display); font-size: 1.32rem; font-weight: 800; color: #fff; }
.cta-band .phone-big small { display: block; font-family: var(--f-body); font-size: .8rem; font-weight: 400; color: #87a8c5; margin-top: 2px; }

/* ── Page-head ───────────────────────────────────────────────── */
.page-head { position: relative; overflow: hidden; background: var(--grad-navy); color: #c5d8ea; padding: 76px 0 70px; }
.page-head::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(640px 380px at 86% -10%, rgba(31,159,240,.22), transparent 60%); }
.page-head .container { position: relative; }
.page-head h1 { color: #fff; font-size: clamp(2.1rem, 4.4vw, 3.2rem); }
.page-head p.lead { margin-top: 18px; font-size: 1.12rem; max-width: 720px; color: #bcd6ea; }
.page-head p.lead strong { color: #fff; }
.breadcrumb { font-size: .84rem; font-weight: 500; margin-bottom: 22px; color: #87a8c5; }
.breadcrumb a { color: var(--blue-300); }
.prose { max-width: 800px; }
.prose h2 { margin: 46px 0 16px; font-size: 1.5rem; }
.prose p + p { margin-top: 14px; }
.prose ul { margin: 14px 0 14px 22px; }

/* ── Formulaire contact ──────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 44px; align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 42px; box-shadow: var(--shadow-md); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-weight: 600; font-size: .88rem; color: var(--ink); margin-bottom: 8px; }
.field input, .field select, .field textarea { width: 100%; font: inherit; font-size: .96rem; color: var(--ink); padding: 13px 16px; border: 1.5px solid var(--line); border-radius: var(--r-xs); background: var(--sky-50); outline: none; transition: border-color .15s, box-shadow .15s, background-color .15s; }
.field textarea { min-height: 135px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue-500); box-shadow: 0 0 0 4px rgba(31,159,240,.14); background: #fff; }
.form-note { font-size: .84rem; color: var(--muted); margin-top: 14px; }
.contact-aside { display: grid; gap: 16px; align-content: start; }
.contact-line { display: flex; gap: 16px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 22px 24px; box-shadow: var(--shadow-xs); }
.contact-line svg { width: 22px; height: 22px; color: var(--blue-600); flex: none; margin-top: 3px; }
.contact-line b { display: block; color: var(--ink); margin-bottom: 3px; font-weight: 600; }
.contact-line a { font-weight: 600; }
.contact-line small { color: var(--muted); }

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer { background: var(--navy-950); color: #8fa6bd; padding: 74px 0 36px; font-size: .94rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.15fr; gap: 48px; margin-bottom: 50px; }
.footer-logo-wrap { display: inline-flex; background: #fff; border-radius: 14px; padding: 12px 16px; margin-bottom: 18px; }
.footer-logo-wrap img { height: 46px; width: auto; }
.site-footer h4 { color: #fff; font-size: .78rem; text-transform: uppercase; letter-spacing: .13em; margin-bottom: 18px; font-weight: 700; }
.site-footer ul { list-style: none; display: grid; gap: 11px; }
.site-footer a { color: #8fa6bd; }
.site-footer a:hover { color: #fff; }
.footer-rge { display: flex; align-items: center; gap: 14px; margin-top: 22px; }
.footer-rge img { height: 44px; width: auto; border-radius: 8px; background: #fff; padding: 5px 9px; flex: none; }
.footer-rge small { font-size: .8rem; line-height: 1.5; }
.footer-brands { display: flex; gap: 18px; align-items: center; margin-top: 20px; flex-wrap: wrap; }
.footer-brands img { height: 24px; width: auto; filter: brightness(0) invert(1); opacity: .5; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 26px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: .82rem; color: #5f7993; }
.footer-bottom a { color: #5f7993; }
.footer-bottom a:hover { color: #fff; }

/* ── CTA mobile ──────────────────────────────────────────────── */
.mobile-cta { position: fixed; bottom: 0; left: 0; right: 0; z-index: 95; display: none; gap: 10px; padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.95); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-top: 1px solid var(--line); }
.mobile-cta .btn { flex: 1; padding: 13px 10px; font-size: .92rem; }
.mobile-cta .btn-ghost { background: #fff; }

/* ── Bandeau cookies (RGPD / CNIL) ───────────────────────────── */
.cookie-banner {
  position: fixed; z-index: 120; left: 50%; transform: translateX(-50%);
  bottom: 22px; width: min(960px, calc(100% - 32px));
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  display: grid; grid-template-columns: 1fr auto; gap: 22px; align-items: center;
  padding: 22px 26px;
  opacity: 0; visibility: hidden; transform: translate(-50%, 16px);
  transition: opacity .35s ease, transform .35s ease, visibility .35s;
}
.cookie-banner.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.cookie-banner h4 { font-family: var(--f-display); font-size: 1.02rem; color: var(--ink); margin-bottom: 5px; }
.cookie-banner p { font-size: .9rem; line-height: 1.55; color: var(--text); margin: 0; }
.cookie-banner p a { font-weight: 600; }
.cookie-actions { display: flex; gap: 12px; align-items: center; flex: none; }
.cookie-actions .btn { padding: 12px 24px; font-size: .92rem; }
@media (max-width: 720px) {
  .cookie-banner { grid-template-columns: 1fr; gap: 16px; bottom: 86px; padding: 20px 22px; }
  .cookie-actions { width: 100%; }
  .cookie-actions .btn { flex: 1; }
}

/* ── Reveal ──────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s cubic-bezier(.2,.6,.2,1), transform .7s cubic-bezier(.2,.6,.2,1); }
.reveal.visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; } .reveal.d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } .btn, .card, .step { transition: none; } }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1060px) {
  .hero-grid, .split, .how-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 560px; }
  .figures-grid, .steps { grid-template-columns: 1fr 1fr; }
  .cards-4 { grid-template-columns: 1fr 1fr; }
  .cards-3, .ranges, .guarantees { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-band, .estimate { grid-template-columns: 1fr; padding: 48px 40px; }
}
@media (max-width: 880px) {
  .main-nav { position: fixed; left: 0; right: 0; top: var(--header-h); z-index: 89; flex-direction: column; align-items: stretch; gap: 4px; background: rgba(255,255,255,.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--line); padding: 0 20px; max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease; }
  .main-nav.open { max-height: 480px; padding: 14px 20px 20px; }
  .main-nav a { padding: 14px 16px; font-size: 1rem; }
  .nav-toggle { display: inline-flex; }
  .header-cta .btn { display: none; }
  .phone-link span { display: none; }
}
@media (max-width: 720px) {
  section { padding: 64px 0; }
  .hero { padding: 36px 0 28px; }
  .hero p.lead { font-size: 1.06rem; }
  .cards-2, .cards-3, .cards-4, .ranges, .guarantees, .steps, .figures-grid, .compare { grid-template-columns: 1fr; }
  .hero-card.tl { left: 8px; } .hero-card.br { right: 8px; }
  .brandstrip .container { gap: 20px; }
  .brand-logos { gap: 26px; }
  .form-card { padding: 30px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .mobile-cta { display: flex; }
  body { padding-bottom: 76px; }
  .cta-band, .estimate { padding: 42px 26px; }
  .split-img .stamp { left: 8px; bottom: -16px; }
}