/* Rénovation Toiture — design system partagé (from scratch, cf docs/06). Hub + piliers couvreur. */
/* Identité : ardoise/anthracite + accent tuile terre cuite. Serif Spectral + grotesk Mulish. */
/* Motif métier : pente de toit / rangs de tuiles / coupe de versant. */

/* ── Reset & tokens ─────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  /* surfaces : papier crème froid → ardoise profonde */
  --bg-base:#f4f1ec; --bg-surface:#fcfaf6; --bg-elevated:#ffffff; --bg-ink:#1c232b;
  --text-primary:#1d2630; --text-secondary:#4d5760; --text-tertiary:#7c858d;
  /* accent : terre cuite / tuile (échelle), + ardoise comme couleur structurelle, + cuivre patine */
  --tile-700:#9a3b1e; --tile-600:#c0512a; --tile-500:#d96a3f; --tile-400:#e8865c;
  --slate-700:#2c3742; --slate-500:#46596a; --copper:#3a7d72;
  --border-subtle:rgba(28,35,43,.10); --border-default:rgba(28,35,43,.17);
  --radius-md:8px; --radius-lg:14px; --radius-full:9999px;
  --shadow-card:0 1px 0 var(--border-subtle),0 20px 44px -32px rgba(28,35,43,.6);
}
html{scroll-behavior:smooth}
body{font-family:'Mulish',system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg-base);color:var(--text-primary);line-height:1.64;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
h1,h2,h3,h4{font-family:'Spectral',Georgia,'Times New Roman',serif;font-weight:600;line-height:1.1;letter-spacing:-.012em}
a{color:inherit;text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.container--narrow{max-width:820px}

/* ── A11y ──────────────────────────────────────────────────────── */
.skip-link{position:absolute;top:-100%;left:16px;z-index:999;padding:8px 16px;background:var(--tile-600);color:#fff;border-radius:var(--radius-md);font-size:.875rem;font-weight:700;transition:top .15s}
.skip-link:focus{top:16px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--tile-600);outline-offset:2px}
@media(prefers-reduced-motion:reduce){.skip-link{transition:none}}

/* ── Reveal (amélioration progressive) ─────────────────────────── */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease-out,transform .6s ease-out}
.reveal.visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ── Shared ────────────────────────────────────────────────────── */
.eyebrow{font-size:.72rem;font-weight:800;letter-spacing:.19em;text-transform:uppercase;color:var(--tile-600)}
.btn{display:inline-flex;align-items:center;gap:.55rem;background:var(--tile-600);color:#fff;font-family:inherit;font-weight:700;font-size:1rem;padding:15px 26px;border-radius:var(--radius-md);border:0;cursor:pointer;transition:transform .15s ease-out,background .15s}
.btn:hover{transform:translateY(-2px);background:var(--tile-700)}
.btn svg{width:18px;height:18px}
@media(prefers-reduced-motion:reduce){.btn:hover{transform:none}}
section{padding:84px 0}
.head{max-width:60ch}
.head h2{font-size:clamp(1.85rem,3.4vw,2.6rem);margin-top:12px}
.head p{color:var(--text-secondary);font-size:1.06rem;margin-top:14px}

/* ── Header ────────────────────────────────────────────────────── */
header{position:sticky;top:0;z-index:40;background:rgba(244,241,236,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle)}
.bar{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-family:'Spectral',serif;font-weight:600;font-size:1.22rem;letter-spacing:-.01em}
.logo svg{width:30px;height:30px;flex:none}
.nav-cta{font-size:.92rem;font-weight:700;color:var(--tile-700);display:flex;align-items:center;gap:.45rem;transition:color .15s}
.nav-cta::before{content:"";width:8px;height:8px;border-radius:50%;background:#1f9d63;box-shadow:0 0 0 4px rgba(31,157,99,.16)}
.nav-cta:hover{color:var(--tile-600)}

/* ── Hero (motif : versant + rangs de tuiles le long du bord) ──── */
.hero{position:relative;padding:58px 0 34px}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:52px;align-items:start}
.hero-copy{position:relative;padding-left:60px}
/* rail vertical : coupe de versant + rangs de tuiles */
.ridge{position:absolute;left:0;top:4px;bottom:-10px;width:44px;pointer-events:none}
.ridge svg{height:100%;width:100%;overflow:visible}
.hero h1{font-size:clamp(2.2rem,4.6vw,3.6rem);margin-top:18px}
.hero h1 em{font-style:normal;color:var(--tile-600)}
.lede{font-size:1.15rem;color:var(--text-secondary);max-width:44ch;margin:22px 0 28px}
.points{list-style:none;display:grid;gap:11px}
.points li{display:flex;gap:11px;align-items:flex-start;font-weight:600;font-size:.98rem}
.points svg{width:21px;height:21px;flex:none;color:var(--tile-600);margin-top:2px}
.metrics{display:flex;gap:30px;margin-top:34px;flex-wrap:wrap}
.metric .n{font-family:'Spectral',serif;font-size:1.85rem;font-weight:600;line-height:1;color:var(--slate-700)}
.metric .l{font-size:.8rem;color:var(--text-tertiary);max-width:16ch;margin-top:4px}

/* ── Form card ─────────────────────────────────────────────────── */
.form-card{position:relative;background:var(--bg-surface);border:1px solid var(--border-default);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden}
.form-card .fc-head{padding:18px 22px 14px;border-bottom:1px solid var(--border-subtle);display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.form-card .fc-head h2{font-size:1.2rem}
.form-card .fc-head p{font-size:.86rem;color:var(--text-secondary);margin-top:3px}
.tag{flex:none;background:var(--copper);color:#fff;font-size:.66rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:5px 10px;border-radius:var(--radius-full)}
.form-card iframe{display:block;width:100%;border:0;background:var(--bg-surface)}

/* ── Divider : ligne de tuiles (rangs décalés) ─────────────────── */
.eaves{display:block;width:100%;height:42px}
.band{background:#ece6dc}

/* ── Steps ─────────────────────────────────────────────────────── */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:46px;counter-reset:s}
.step{position:relative;padding:24px 20px 22px;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);border-top:3px solid var(--tile-500);transition:transform .2s ease-out,border-color .2s}
.step:hover{transform:translateY(-3px);border-color:var(--border-default);border-top-color:var(--tile-600)}
.step::before{counter-increment:s;content:"0" counter(s);font-family:'Spectral',serif;font-size:1.4rem;font-weight:600;color:var(--tile-600)}
.step h3{font-size:1.08rem;margin:7px 0 5px}
.step p{font-size:.9rem;color:var(--text-secondary)}
@media(prefers-reduced-motion:reduce){.step:hover{transform:none}}

/* ── Services grid ─────────────────────────────────────────────── */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:42px}
.svc{display:block;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:24px 22px;transition:transform .2s ease-out,border-color .2s}
.svc:hover{transform:translateY(-3px);border-color:var(--tile-400)}
.svc .ic{width:42px;height:42px;border-radius:9px;display:grid;place-items:center;background:rgba(192,81,42,.10);color:var(--tile-600);margin-bottom:14px}
.svc .ic svg{width:23px;height:23px}
.svc h3{font-size:1.08rem}
.svc p{font-size:.9rem;color:var(--text-secondary);margin-top:6px}
.svc .more{font-size:.82rem;font-weight:700;color:var(--tile-600);margin-top:12px;display:inline-block}
@media(prefers-reduced-motion:reduce){.svc:hover{transform:none}}

/* ── Split (pricing + reg) ─────────────────────────────────────── */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:start}
.price-list{list-style:none;margin-top:18px}
.price-list li{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--border-subtle)}
.price-list .svcn{font-weight:700}
.price-list .svcn small{display:block;font-weight:400;color:var(--text-tertiary);font-size:.84rem}
.price-list .amt{font-family:'Spectral',serif;font-weight:600;font-size:1.06rem;white-space:nowrap;color:var(--tile-700)}
.note{font-size:.8rem;color:var(--text-tertiary);margin-top:14px;font-style:italic}
.reg{background:var(--bg-ink);color:#e8edf1;border-radius:var(--radius-lg);padding:32px 30px}
.reg h3{color:#fff;font-size:1.38rem}
.reg ul{list-style:none;margin-top:18px;display:grid;gap:15px}
.reg li{display:flex;gap:12px;font-size:.94rem;color:#c2ccd3}
.reg li svg{width:19px;height:19px;flex:none;color:var(--tile-400);margin-top:3px}
.reg strong{color:#fff;font-weight:700}

/* ── Why ───────────────────────────────────────────────────────── */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:42px}
.why .ic{font-family:'Spectral',serif;font-size:1.3rem;color:var(--tile-600);font-weight:600}
.why h3{font-size:1.13rem;margin:9px 0 5px}
.why p{color:var(--text-secondary);font-size:.93rem}

/* ── FAQ ───────────────────────────────────────────────────────── */
.faq-list{margin-top:34px;border-top:1px solid var(--border-subtle)}
details{border-bottom:1px solid var(--border-subtle)}
summary{cursor:pointer;list-style:none;padding:21px 0;font-family:'Spectral',serif;font-size:1.13rem;font-weight:600;display:flex;justify-content:space-between;gap:20px;align-items:center}
summary::-webkit-details-marker{display:none}
summary .pm{flex:none;width:25px;height:25px;border:1.5px solid var(--tile-600);border-radius:6px;position:relative;transition:background .2s}
summary .pm::before,summary .pm::after{content:"";position:absolute;inset:0;margin:auto;background:var(--tile-600);transition:.2s}
summary .pm::before{width:11px;height:1.7px}
summary .pm::after{width:1.7px;height:11px}
details[open] summary .pm{background:var(--tile-600)}
details[open] summary .pm::before,details[open] summary .pm::after{background:#fff}
details[open] summary .pm::after{transform:rotate(90deg);opacity:0}
details>p{padding:0 0 23px;color:var(--text-secondary);max-width:78ch}

/* ── Final CTA ─────────────────────────────────────────────────── */
.final{position:relative;overflow:hidden;background:var(--bg-ink);color:#fff;border-radius:20px;padding:56px 32px}
.final-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;position:relative;z-index:1}
.final h2{color:#fff;font-size:clamp(1.85rem,3.6vw,2.7rem)}
.final p{max-width:46ch;margin:14px 0 0;color:#c2ccd3;font-size:1.05rem}
.final .form-card{margin:0}
.final .roofline{position:absolute;left:0;right:0;top:0;height:30px;opacity:.5}
@media(max-width:860px){.final-grid{grid-template-columns:1fr;gap:28px}}

/* ── CTA simple (piliers) ──────────────────────────────────────── */
.cta-simple{position:relative;overflow:hidden;background:var(--bg-ink);color:#fff;border-radius:20px;padding:54px 32px;text-align:center}
.cta-simple h2{color:#fff;font-size:clamp(1.8rem,3.6vw,2.6rem)}
.cta-simple p{max-width:48ch;margin:14px auto 28px;color:#c2ccd3;font-size:1.05rem}
.cta-simple .btn{background:var(--tile-500)}
.cta-simple .btn:hover{background:var(--tile-400)}
.cta-simple .roofline{position:absolute;left:0;right:0;bottom:0;height:30px;opacity:.5}

/* ── Footer ────────────────────────────────────────────────────── */
footer{background:var(--bg-ink);color:#97a3ac;padding:46px 0 36px;font-size:.9rem}
footer .ft{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
footer .logo{color:#fff}
footer .mentions{max-width:52ch;line-height:1.7;margin-top:12px}
footer .small{font-size:.78rem;color:#717d86;display:block;margin-top:12px}
footer nav a{display:block;color:#c2ccd3;padding:3px 0;transition:color .15s}
footer nav a:hover{color:#fff}

/* ── Breadcrumb ────────────────────────────────────────────────── */
.crumbs{font-size:.84rem;color:var(--text-tertiary);padding:18px 0 0}
.crumbs a{color:var(--tile-700)}
.crumbs a:hover{text-decoration:underline}
.crumbs span{margin:0 6px;color:var(--text-tertiary)}

/* ── Prose (contenu éditorial des piliers) ─────────────────────── */
.prose{max-width:72ch}
.prose h2{font-size:clamp(1.6rem,3vw,2.05rem);margin:46px 0 14px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.22rem;margin:30px 0 10px}
.prose p{color:var(--text-secondary);margin:0 0 16px}
.prose ul{margin:0 0 16px 0;padding-left:0;list-style:none;display:grid;gap:10px}
.prose ul li{position:relative;padding-left:28px;color:var(--text-secondary)}
.prose ul li::before{content:"";position:absolute;left:3px;top:8px;width:11px;height:11px;background:var(--tile-500);clip-path:polygon(50% 0,100% 100%,0 100%)}/* mini tuile/chevron */
.prose strong{color:var(--text-primary);font-weight:700}
.prose .callout{background:var(--bg-surface);border:1px solid var(--border-subtle);border-left:3px solid var(--tile-500);border-radius:var(--radius-md);padding:18px 20px;margin:22px 0;color:var(--text-secondary)}
.prose .callout strong{color:var(--text-primary)}
.prose table{width:100%;border-collapse:collapse;margin:6px 0 20px;font-size:.93rem}
.prose th,.prose td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--border-subtle)}
.prose thead th{font-family:'Mulish',sans-serif;font-weight:800;color:var(--text-primary);background:var(--bg-surface);font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}
.prose tbody td:last-child{font-family:'Spectral',serif;font-weight:600;color:var(--tile-700);white-space:nowrap}
.prose .src{font-size:.78rem;color:var(--text-tertiary);font-style:italic;margin-top:-12px}

/* ── Related (maillage interne) ────────────────────────────────── */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}
.related a{display:block;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:18px 18px;transition:transform .2s,border-color .2s}
.related a:hover{transform:translateY(-3px);border-color:var(--tile-400)}
.related .k{font-family:'Spectral',serif;font-weight:600;font-size:1.02rem}
.related .d{font-size:.85rem;color:var(--text-secondary);margin-top:4px}
.related .a{font-size:.82rem;font-weight:700;color:var(--tile-600);margin-top:8px;display:inline-block}

/* ── Responsive ────────────────────────────────────────────────── */
@media(max-width:1024px){.steps{grid-template-columns:1fr 1fr}.svc-grid{grid-template-columns:1fr 1fr}}
@media(max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .split,.why-grid,.related{grid-template-columns:1fr;gap:30px}
  section{padding:64px 0}
}
@media(max-width:560px){
  .steps,.svc-grid{grid-template-columns:1fr}
  .hero-copy{padding-left:48px}
  .metrics{gap:20px}
  .prose table{font-size:.86rem}
  .prose th,.prose td{padding:9px 8px}
}