/* Okalis : charte « le pilier » : bleu nuit, or, ivoire. Montserrat + Inter. */
:root {
  --navy: #0B1F3A;
  --navy-2: #122B4F;
  --gold: #C9A227;
  --gold-dark: #8A6F14;
  --ivory: #F5F3EE;
  --line: #E3E6EB;
  --text: #1C2433;
  --muted: #5B6473;
  --white: #FFFFFF;
  --font-title: 'Montserrat', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --max: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-body); color: var(--text); background: var(--white); line-height: 1.6; font-size: 16px; }
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-title); color: var(--navy); line-height: 1.12; margin: 0; }
h1 { font-size: clamp(34px, 5vw, 58px); font-weight: 800; letter-spacing: -0.01em; }
h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 700; }
h3 { font-size: 20px; font-weight: 700; }
p { margin: 0; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.eyebrow { font-family: var(--font-title); font-weight: 700; font-size: 12px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold-dark); margin-bottom: 14px; }
.lead { font-size: 18px; color: var(--muted); max-width: 640px; }
.section { padding: 88px 0; }
.section-ivory { background: var(--ivory); }
.section-navy { background: var(--navy); color: #C8D0DC; }
.section-navy h2, .section-navy h3 { color: var(--white); }
.section-navy .eyebrow { color: var(--gold); }
.section-head { display: flex; flex-direction: column; gap: 14px; margin-bottom: 44px; }
.section-head .lead { margin-top: 4px; }

/* Boutons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 12px 26px; font-family: var(--font-title); font-weight: 700; font-size: 14px; letter-spacing: 0.04em; text-decoration: none; border: 2px solid transparent; cursor: pointer; transition: background .2s, color .2s, border-color .2s; }
.btn-gold { background: var(--gold); color: var(--navy); border-color: var(--gold); }
.btn-gold:hover { background: #D9B33A; border-color: #D9B33A; }
.btn-navy { background: var(--navy); color: var(--white); border-color: var(--navy); }
.btn-navy:hover { background: var(--navy-2); }
.btn-outline { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: var(--white); }
.btn-outline-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,.55); }
.btn-outline-light:hover { border-color: var(--white); }

/* En-tête */
.topbar { background: var(--navy); color: #C8D0DC; font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; min-height: 36px; gap: 16px; }
.topbar span strong { color: var(--white); font-weight: 600; }
.topbar a { color: var(--gold); text-decoration: none; font-weight: 600; }
.header { position: sticky; top: 0; z-index: 50; background: var(--white); border-bottom: 1px solid var(--line); }
.header .container { display: flex; align-items: center; justify-content: space-between; min-height: 84px; gap: 24px; }
.logo { display: inline-flex; align-items: center; text-decoration: none; }
.logo svg { display: block; height: 56px; width: auto; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a { font-family: var(--font-title); font-weight: 600; font-size: 14px; text-decoration: none; color: var(--navy); padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { border-bottom-color: var(--gold); }
.nav .btn { padding: 10px 20px; min-height: 42px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); width: 46px; height: 46px; cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); position: relative; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: var(--navy); }
.nav-toggle span::before { top: -7px; } .nav-toggle span::after { top: 7px; }

/* Héro */
.hero { position: relative; background: var(--navy); color: var(--white); overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: .38; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,31,58,.92) 0%, rgba(11,31,58,.72) 55%, rgba(11,31,58,.35) 100%); }
.hero .container { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 48px; align-items: end; padding-top: 110px; padding-bottom: 96px; min-height: 620px; }
.hero h1 { color: var(--white); }
.hero .eyebrow { color: var(--gold); }
.hero .lead { color: #D5DCE6; margin-top: 22px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-card { background: var(--white); color: var(--text); padding: 28px 30px; border-top: 6px solid var(--gold); }
.hero-card h3 { font-size: 18px; margin-bottom: 14px; }
.hero-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.hero-card li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; }
.hero-card li svg { flex: none; margin-top: 3px; }

/* Bandeau de confiance */
.trustbar { background: var(--ivory); border-bottom: 1px solid var(--line); }
.trustbar .container { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.trust { display: flex; gap: 14px; align-items: center; padding: 22px 18px; border-left: 1px solid var(--line); }
.trust:first-child { border-left: 0; padding-left: 0; }
.trust svg { flex: none; }
.trust strong { display: block; font-family: var(--font-title); font-size: 14px; color: var(--navy); }
.trust span { font-size: 13px; color: var(--muted); }

/* Métiers */
.cards-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.card { background: var(--white); border: 1px solid var(--line); display: flex; flex-direction: column; text-decoration: none; color: inherit; transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(11,31,58,.12); }
.card img { aspect-ratio: 4 / 3; width: 100%; object-fit: cover; }
.card-body { padding: 26px 26px 28px; display: flex; flex-direction: column; gap: 12px; flex-grow: 1; }
.card-body p { color: var(--muted); font-size: 15px; }
.card-link { margin-top: auto; font-family: var(--font-title); font-weight: 700; font-size: 13px; letter-spacing: .06em; color: var(--navy); display: inline-flex; gap: 8px; align-items: center; }
.card-link::after { content: ""; width: 26px; height: 2px; background: var(--gold); }

/* Avant / après */
.ba-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.ba { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #0f1b2d; --pos: 50%; user-select: none; }
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ba .after { clip-path: inset(0 0 0 var(--pos)); }
/* « Avant » simulé à partir de la même photo : terne, jauni, taché. À remplacer par les vraies photos de chantier. */
.ba .before { filter: sepia(.6) saturate(.55) brightness(.68) contrast(1.08); }
.ba .grime { position: absolute; inset: 0; pointer-events: none; clip-path: inset(0 calc(100% - var(--pos)) 0 0); mix-blend-mode: multiply;
  background:
    radial-gradient(ellipse 28% 22% at 18% 12%, rgba(92,70,38,.75), rgba(92,70,38,0) 70%),
    radial-gradient(ellipse 34% 18% at 72% 8%, rgba(70,58,36,.7), rgba(70,58,36,0) 70%),
    radial-gradient(ellipse 22% 30% at 92% 55%, rgba(80,64,40,.6), rgba(80,64,40,0) 70%),
    radial-gradient(ellipse 40% 20% at 40% 96%, rgba(50,40,28,.8), rgba(50,40,28,0) 70%),
    radial-gradient(circle 9% at 30% 55%, rgba(60,48,30,.45), rgba(60,48,30,0) 70%),
    repeating-linear-gradient(115deg, rgba(0,0,0,0) 0 14px, rgba(60,50,35,.08) 14px 16px),
    linear-gradient(rgba(120,100,60,.22), rgba(120,100,60,.22)); }
.ba .crack { position: absolute; inset: 0; pointer-events: none; clip-path: inset(0 calc(100% - var(--pos)) 0 0); opacity: .55; }
.ba .handle { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 2px; background: var(--white); transform: translateX(-1px); pointer-events: none; }
.ba .handle::after { content: ""; position: absolute; top: 50%; left: 50%; width: 44px; height: 44px; border-radius: 50%; background: var(--gold); transform: translate(-50%, -50%); box-shadow: 0 6px 18px rgba(0,0,0,.35); background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 44 44'><path d='M18 15l-7 7 7 7M26 15l7 7-7 7' fill='none' stroke='%230B1F3A' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'/></svg>"); }
.ba input[type="range"] { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.ba .tag { position: absolute; bottom: 14px; font-family: var(--font-title); font-weight: 700; font-size: 11px; letter-spacing: .24em; padding: 6px 10px; pointer-events: none; }
.ba .tag-before { left: 14px; background: rgba(11,31,58,.85); color: var(--white); }
.ba .tag-after { right: 14px; background: var(--gold); color: var(--navy); }
.ba-caption { margin-top: 14px; display: flex; justify-content: space-between; gap: 16px; align-items: baseline; }
.ba-caption strong { font-family: var(--font-title); color: var(--navy); font-size: 16px; }
.ba-caption span { color: var(--muted); font-size: 14px; }
.ba-hint { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* Méthode */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 1px solid rgba(255,255,255,.14); }
.step { padding: 36px 28px 36px 0; border-right: 1px solid rgba(255,255,255,.14); padding-left: 28px; }
.step:first-child { padding-left: 0; }
.step:last-child { border-right: 0; }
.step-num { font-family: var(--font-title); font-weight: 800; font-size: 44px; color: var(--gold); line-height: 1; margin-bottom: 16px; }
.step h3 { font-size: 18px; margin-bottom: 10px; }
.step p { font-size: 15px; }

/* Clientèles */
.cards-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.tile { background: var(--white); border: 1px solid var(--line); padding: 28px 24px; display: flex; flex-direction: column; gap: 12px; border-top: 4px solid var(--navy); }
.tile h3 { font-size: 17px; }
.tile p { color: var(--muted); font-size: 15px; }

/* Bande image + texte */
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 60px; align-items: center; }
.split img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.split .body { display: flex; flex-direction: column; gap: 18px; }
.split .body p { color: var(--muted); }
.checklist { list-style: none; margin: 6px 0 0; padding: 0; display: grid; gap: 12px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; }
.checklist li svg { flex: none; margin-top: 4px; }

/* CTA */
.cta { background: var(--navy); color: var(--white); }
.cta .container { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 28px; padding-top: 56px; padding-bottom: 56px; }
.cta h2 { color: var(--white); font-size: clamp(24px, 3vw, 34px); }
.cta p { color: #C8D0DC; margin-top: 8px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Pied de page */
.footer { background: #071526; color: #9AA6B8; padding: 64px 0 28px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer h4 { color: var(--white); font-size: 13px; letter-spacing: .2em; text-transform: uppercase; margin-bottom: 18px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer a { color: #C8D0DC; text-decoration: none; }
.footer a:hover { color: var(--gold); }
.footer .logo svg { height: 40px; }
.footer-brand p { margin-top: 18px; max-width: 320px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 22px; font-size: 13px; }

/* Pages intérieures */
.page-hero { background: var(--navy); color: var(--white); position: relative; overflow: hidden; }
.page-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .28; }
.page-hero .container { position: relative; padding-top: 86px; padding-bottom: 76px; display: flex; flex-direction: column; gap: 16px; }
.page-hero h1 { color: var(--white); font-size: clamp(32px, 4.4vw, 50px); }
.page-hero .eyebrow { color: var(--gold); margin-bottom: 0; }
.page-hero .lead { color: #D5DCE6; }
.breadcrumb { font-size: 13px; color: #9AA6B8; }
.breadcrumb a { color: #C8D0DC; text-decoration: none; }
.prose { max-width: 760px; display: flex; flex-direction: column; gap: 18px; color: var(--text); }
.prose h2 { font-size: 28px; margin-top: 14px; }
.prose h3 { margin-top: 8px; }
.prose p { color: #3B4453; }
.prose ul { margin: 0; padding-left: 20px; color: #3B4453; display: grid; gap: 8px; }
.gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.gallery figure { margin: 0; }
.gallery img { aspect-ratio: 4 / 3; width: 100%; object-fit: cover; }
.gallery figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.fact { border: 1px solid var(--line); padding: 26px; background: var(--white); }
.fact h3 { font-size: 17px; margin-bottom: 8px; }
.fact p { color: var(--muted); font-size: 15px; }

/* Formulaire */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 60px; align-items: start; }
.form { background: var(--white); border: 1px solid var(--line); padding: 36px; display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-family: var(--font-title); font-weight: 600; font-size: 13px; color: var(--navy); }
.field input, .field select, .field textarea { font: inherit; font-size: 15px; padding: 12px 14px; border: 1px solid #C8CCD4; background: var(--white); color: var(--text); min-height: 48px; width: 100%; }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--gold); outline-offset: 1px; border-color: var(--gold); }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--muted); }
.consent input { margin-top: 4px; width: 18px; height: 18px; }
.form-note { font-size: 13px; color: var(--muted); }
.form-success { display: none; background: var(--ivory); border-left: 4px solid var(--gold); padding: 18px 20px; }
.form-success strong { color: var(--navy); font-family: var(--font-title); }
.form.is-sent .form-success { display: block; }
.form.is-sent .form-fields { display: none; }
.contact-side { display: flex; flex-direction: column; gap: 26px; }
.contact-block { border-top: 3px solid var(--gold); padding-top: 16px; }
.contact-block h3 { font-size: 16px; margin-bottom: 6px; }
.contact-block p { color: var(--muted); font-size: 15px; }
.contact-block a { color: var(--navy); font-weight: 600; text-decoration: none; }

/* Responsive */
@media (max-width: 1000px) {
  .hero .container { grid-template-columns: 1fr; padding-top: 80px; padding-bottom: 70px; min-height: 0; }
  .trustbar .container { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .trust { border-left: 0; padding-left: 0; }
  .cards-3 { grid-template-columns: 1fr; }
  .cards-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step { border-right: 0; padding-left: 0; }
  .split, .contact-grid, .ba-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .gallery, .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .section { padding: 60px 0; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; padding: 10px 20px 20px; }
  .nav.is-open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 14px; }
  .nav-toggle { display: inline-flex; }
  .topbar .container { font-size: 12px; }
  .topbar .topbar-right { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .cards-4, .steps, .gallery, .facts, .footer-grid { grid-template-columns: 1fr; }
  .form { padding: 24px; }
}