/* =====================================================================
   BATI-R — Feuille de styles principale
   Construction & Rénovation · Faulquemont (57)
   Design system maison — sans framework, vanilla CSS moderne.
   ===================================================================== */

/* ----------------------------- Tokens ----------------------------- */
:root {
  /* Palette de marque (échantillonnée sur le logo BATI-R) */
  --ink:        #1d1d20;
  --ink-2:      #26262a;
  --ink-3:      #34343a;
  --brick:      #c4452f;
  --brick-600:  #a8371e;
  --brick-700:  #8f2e18;
  --brick-100:  #f6e3dd;
  --brick-050:  #fbf1ee;
  --paper:      #f7f5f1;
  --paper-2:    #efebe4;
  --sand:       #e7e1d7;
  --concrete:   #6c6760;
  --concrete-2: #8d877e;
  --white:      #ffffff;
  --line:       rgba(29,29,32,.12);
  --line-soft:  rgba(29,29,32,.07);

  /* Typo */
  --font-display: "Sora", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body:    "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Rythme */
  --container: 1200px;
  --gutter: clamp(1.2rem, 4vw, 2.4rem);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 26px;

  /* Ombres */
  --shadow-sm: 0 1px 2px rgba(20,20,24,.06), 0 2px 6px rgba(20,20,24,.05);
  --shadow:    0 14px 30px -16px rgba(20,20,24,.30), 0 6px 14px -10px rgba(20,20,24,.18);
  --shadow-lg: 0 40px 80px -32px rgba(20,20,24,.42);

  /* Transitions */
  --ease: cubic-bezier(.22,.61,.36,1);
  --t: .45s var(--ease);

  --header-h: 76px;
}

/* ----------------------------- Reset ------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: clamp(1rem, 0.6vw + 0.9rem, 1.075rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul[role="list"] { list-style: none; padding: 0; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
input, textarea, select { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--brick); outline-offset: 2px; border-radius: 4px; }

/* --------------------------- Typographie -------------------------- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.08; letter-spacing: -0.02em; color: var(--ink); }
h1 { font-size: clamp(2.4rem, 5.4vw, 4.2rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h3 { font-size: clamp(1.25rem, 1.6vw, 1.55rem); letter-spacing: -0.01em; }
p { color: var(--ink-2); }
strong { color: var(--ink); font-weight: 600; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--font-display); font-weight: 600;
  font-size: .8rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--brick);
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--brick); display: inline-block; }
.eyebrow--center { justify-content: center; }

.lead { font-size: clamp(1.05rem, 1.2vw, 1.25rem); color: var(--concrete); max-width: 60ch; }

/* ----------------------------- Layout ----------------------------- */
.container { width: min(100% - 2*var(--gutter), var(--container)); margin-inline: auto; }
.container--narrow { width: min(100% - 2*var(--gutter), 880px); margin-inline: auto; }

.section { padding: clamp(4rem, 9vw, 8rem) 0; }
.section--tight { padding: clamp(3rem, 6vw, 5rem) 0; }
.section--alt { background: var(--paper-2); }
.section--ink { background: var(--ink); color: var(--paper); }
.section--ink h2, .section--ink h3 { color: #fff; }
.section--ink p { color: rgba(255,255,255,.72); }

.section-head { max-width: 64ch; margin-bottom: clamp(2rem, 4vw, 3.2rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-top: .7rem; }
.section-head p { margin-top: 1rem; }

.grid { display: grid; gap: clamp(1.1rem, 2vw, 1.8rem); }
@media (min-width: 640px){ .grid--2 { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 720px){ .grid--3 { grid-template-columns: repeat(3,1fr); } }
@media (min-width: 980px){ .grid--4 { grid-template-columns: repeat(4,1fr); } }
.split { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.split > * { min-width: 0; }
@media (min-width: 900px){ .split { grid-template-columns: 1fr 1fr; } .split--media-first > :first-child { order: 2; } }

/* ----------------------------- Boutons ---------------------------- */
.btn {
  --bg: var(--brick); --fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  padding: .95rem 1.6rem; border-radius: 999px;
  font-family: var(--font-display); font-weight: 600; font-size: .98rem; letter-spacing: .01em;
  background: var(--bg); color: var(--fg);
  transition: transform var(--t), box-shadow var(--t), background var(--t), color var(--t);
  box-shadow: 0 10px 24px -12px rgba(196,69,47,.7);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 18px 34px -14px rgba(196,69,47,.78); background: var(--brick-600); }
.btn:active { transform: translateY(0); }
.btn--ghost { --bg: transparent; --fg: var(--ink); border: 1.5px solid var(--line); box-shadow: none; }
.btn--ghost:hover { --bg: var(--ink); --fg: #fff; border-color: var(--ink); box-shadow: none; }
.btn--light { --bg: #fff; --fg: var(--ink); box-shadow: var(--shadow); }
.btn--light:hover { --bg: #fff; --fg: var(--brick); }
.btn--outline-light { --bg: transparent; --fg: #fff; border: 1.5px solid rgba(255,255,255,.5); box-shadow: none; }
.btn--outline-light:hover { --bg: #fff; --fg: var(--ink); border-color: #fff; }
.btn--lg { padding: 1.1rem 2rem; font-size: 1.05rem; }
.btn svg { width: 1.1em; height: 1.1em; }

.btn-row { display: flex; flex-wrap: wrap; gap: .9rem; }

/* ----------------------------- Topbar ----------------------------- */
.topbar {
  background: var(--ink); color: rgba(255,255,255,.82);
  font-size: .85rem; letter-spacing: .01em;
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .5rem 0; }
.topbar__list { display: flex; gap: 1.4rem; flex-wrap: wrap; align-items: center; }
.topbar a { display: inline-flex; align-items: center; gap: .45rem; transition: color var(--t); }
.topbar a:hover { color: #fff; }
.topbar svg { width: 15px; height: 15px; color: var(--brick); }
.topbar__socials { display: flex; gap: .4rem; }
.topbar__socials a { width: 30px; height: 30px; border-radius: 50%; justify-content: center; border: 1px solid rgba(255,255,255,.18); }
.topbar__socials a:hover { background: var(--brick); border-color: var(--brick); }
@media (max-width: 720px){ .topbar__list--meta { display: none; } }

/* ----------------------------- Header ----------------------------- */
.site-header { position: sticky; top: 0; z-index: 60; background: rgba(247,245,241,.82); backdrop-filter: blur(14px); border-bottom: 1px solid transparent; transition: box-shadow var(--t), background var(--t), border-color var(--t); }
.site-header.is-scrolled { box-shadow: var(--shadow-sm); border-color: var(--line-soft); background: rgba(247,245,241,.92); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1.2rem; min-height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: .7rem; }
.brand__mark { width: 44px; height: 44px; flex: none; }
.brand__text { font-family: var(--font-display); font-weight: 800; font-size: 1.5rem; letter-spacing: -.01em; line-height: 1; color: var(--ink); }
.brand__text b { color: var(--brick); }
.brand__sub { display: block; font-family: var(--font-body); font-weight: 500; font-size: .62rem; letter-spacing: .22em; text-transform: uppercase; color: var(--concrete); margin-top: 3px; }

.nav { display: flex; align-items: center; gap: 1.8rem; }
.nav__list { display: flex; gap: 1.5rem; align-items: center; }
.nav__list a { font-family: var(--font-display); font-weight: 500; font-size: .96rem; color: var(--ink-2); position: relative; padding: .4rem 0; transition: color var(--t); }
.nav__list a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--brick); transition: width var(--t); }
.nav__list a:hover, .nav__list a[aria-current="page"] { color: var(--ink); }
.nav__list a:hover::after, .nav__list a[aria-current="page"]::after { width: 100%; }

.nav-toggle { display: none; width: 46px; height: 46px; border-radius: 12px; border: 1px solid var(--line); align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content: ""; display: block; width: 20px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .35s var(--ease), opacity .25s; }
.nav-toggle span::before { transform: translateY(-6px); } .nav-toggle span::after { transform: translateY(4px); }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: rotate(45deg); }
.nav-open .nav-toggle span::after { transform: rotate(-45deg) translateY(-1px); }

@media (max-width: 940px){
  .site-header { background: var(--paper); backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav-toggle { display: inline-flex; position: relative; z-index: 80; }
  .nav { position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px); flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 0; background: var(--paper); padding: calc(var(--header-h) + 1.2rem) var(--gutter) 2rem; transform: translateX(100%); transition: transform .42s var(--ease); box-shadow: var(--shadow-lg); z-index: 70; }
  .nav-open .nav { transform: translateX(0); }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__list li { border-bottom: 1px solid var(--line-soft); }
  .nav__list a { display: block; padding: 1rem .2rem; font-size: 1.1rem; }
  .nav .btn { margin-top: 1.4rem; }
  .nav-scrim { position: fixed; inset: 0; background: rgba(20,20,24,.5); opacity: 0; visibility: hidden; transition: opacity .4s, visibility .4s; z-index: 55; }
  .nav-open .nav-scrim { opacity: 1; visibility: visible; }
}

/* ------------------------------ Hero ------------------------------ */
.hero { position: relative; color: #fff; isolation: isolate; }
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(18,18,22,.52), rgba(18,18,22,.66) 55%, rgba(18,18,22,.88)),
    radial-gradient(120% 90% at 15% 20%, rgba(196,69,47,.26), transparent 55%);
}
.hero__inner { display: flex; flex-direction: column; justify-content: flex-end; min-height: clamp(560px, 84vh, 860px); padding: clamp(3rem, 8vw, 6rem) 0 clamp(2.6rem, 5vw, 4rem); }
.hero .eyebrow { color: #ffd9cf; }
.hero .eyebrow::before { background: #ffd9cf; }
.hero h1 { color: #fff; max-width: 18ch; text-shadow: 0 2px 30px rgba(0,0,0,.25); }
.hero h1 .accent { color: #ff7a5c; }
.hero__lead { color: rgba(255,255,255,.88); font-size: clamp(1.05rem, 1.4vw, 1.3rem); max-width: 54ch; margin-top: 1.3rem; }
.hero__cta { margin-top: 2rem; }
.hero__meta { display: flex; flex-wrap: wrap; gap: 1.4rem 2.4rem; margin-top: 2.6rem; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,.18); }
.hero__meta .stat__num { color: #fff; }
.hero__meta .stat__label { color: rgba(255,255,255,.7); }
.scroll-hint { position: absolute; left: 50%; bottom: 1.2rem; transform: translateX(-50%); z-index: 1; color: rgba(255,255,255,.7); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; display: flex; flex-direction: column; align-items: center; gap: .5rem; }
.scroll-hint span { width: 1px; height: 34px; background: rgba(255,255,255,.5); animation: scrollpulse 2s var(--ease) infinite; transform-origin: top; }
@keyframes scrollpulse { 0%,100%{ transform: scaleY(.4); opacity:.4 } 50%{ transform: scaleY(1); opacity:1 } }

/* Hero compact (pages internes) */
.pagehero { position: relative; color: #fff; isolation: isolate; }
.pagehero__media { position: absolute; inset: 0; z-index: -2; }
.pagehero__media img { width: 100%; height: 100%; object-fit: cover; }
.pagehero::after { content:""; position:absolute; inset:0; z-index:-1; background: linear-gradient(180deg, rgba(20,20,24,.55), rgba(20,20,24,.72)); }
.pagehero__inner { padding: clamp(5rem, 12vw, 8rem) 0 clamp(3rem, 6vw, 4.5rem); }
.pagehero h1 { color: #fff; max-width: 20ch; }
.pagehero p { color: rgba(255,255,255,.85); max-width: 56ch; margin-top: 1rem; }
.breadcrumb { display: flex; gap: .5rem; font-size: .85rem; color: rgba(255,255,255,.7); margin-bottom: 1.2rem; }
.breadcrumb a:hover { color:#fff; } .breadcrumb span { color: rgba(255,255,255,.45); }

/* ------------------------------ Stats ----------------------------- */
.stat__num { font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem, 3.4vw, 2.9rem); line-height: 1; color: var(--ink); }
.stat__num .unit { color: var(--brick); }
.stat__label { font-size: .9rem; color: var(--concrete); margin-top: .35rem; }

/* --------------------------- Trust / logos ------------------------ */
.trust { display: flex; flex-wrap: wrap; align-items: center; gap: .7rem 1rem; }
.trust__label { font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; color: var(--concrete); margin-right: .4rem; }
.pill { display: inline-flex; align-items: center; gap: .5rem; padding: .5rem .95rem; border-radius: 999px; background: var(--white); border: 1px solid var(--line); font-size: .9rem; font-weight: 500; box-shadow: var(--shadow-sm); }
.pill svg { width: 16px; height: 16px; color: var(--brick); }

/* -------------------------- Cartes services ----------------------- */
.service-card {
  position: relative; background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.8rem 1.7rem 1.9rem; height: 100%;
  display: flex; flex-direction: column; transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  overflow: hidden;
}
.service-card::before { content: ""; position: absolute; left: 0; top: 0; height: 100%; width: 4px; background: var(--brick); transform: scaleY(0); transform-origin: top; transition: transform var(--t); }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleY(1); }
.service-card__icon { width: 54px; height: 54px; border-radius: 14px; background: var(--brick-050); color: var(--brick); display: grid; place-items: center; margin-bottom: 1.2rem; transition: background var(--t), color var(--t); }
.service-card:hover .service-card__icon { background: var(--brick); color: #fff; }
.service-card__icon svg { width: 28px; height: 28px; }
.service-card h3 { margin-bottom: .55rem; }
.service-card p { font-size: .96rem; color: var(--concrete); }
.service-card__tags { margin-top: 1.1rem; display: flex; flex-wrap: wrap; gap: .4rem; }
.tag { font-size: .76rem; padding: .25rem .6rem; border-radius: 6px; background: var(--paper-2); color: var(--ink-2); }
.service-card__more { margin-top: auto; padding-top: 1.2rem; font-family: var(--font-display); font-weight: 600; font-size: .9rem; color: var(--brick); display: inline-flex; align-items: center; gap: .4rem; }
.service-card__more svg { width: 16px; height: 16px; transition: transform var(--t); }
.service-card:hover .service-card__more svg { transform: translateX(4px); }

/* --------------------------- Approche (steps) --------------------- */
.steps { counter-reset: step; display: grid; gap: 1.2rem; }
@media (min-width: 760px){ .steps { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1040px){ .steps { grid-template-columns: repeat(4,1fr); } }
.step { position: relative; overflow: hidden; padding: 2.2rem 1.4rem 1.6rem; border-radius: var(--radius); background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12); }
.steps .step::before { counter-increment: step; content: "0" counter(step); position: absolute; top: .6rem; right: 1.1rem; font-family: var(--font-display); font-weight: 800; font-size: 2.7rem; color: rgba(255,255,255,.12); line-height: 1; pointer-events: none; }
.step h3 { font-size: 1.15rem; margin-bottom: .5rem; }
.step__icon { color: #ff7a5c; margin-bottom: .9rem; } .step__icon svg { width: 26px; height: 26px; }

/* ------------------------- Réalisations cards --------------------- */
.work-grid { display: grid; gap: clamp(1rem,2vw,1.6rem); grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.work { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--ink); aspect-ratio: 4/3; box-shadow: var(--shadow); cursor: zoom-in; }
.work img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease), opacity var(--t); }
.work:hover img { transform: scale(1.07); }
.work__overlay { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; padding: 1.3rem; background: linear-gradient(180deg, transparent 35%, rgba(20,20,24,.82)); color: #fff; }
.work__cat { font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: #ff9a82; font-weight: 600; }
.work__title { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; margin-top: .2rem; }
.work__zoom { position: absolute; top: 1rem; right: 1rem; width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,.16); backdrop-filter: blur(6px); display: grid; place-items: center; opacity: 0; transform: scale(.7); transition: opacity var(--t), transform var(--t); }
.work:hover .work__zoom { opacity: 1; transform: scale(1); }
.work__zoom svg { width: 18px; height: 18px; color: #fff; }
.work.is-wide { grid-column: span 2; aspect-ratio: 16/10; }
@media (max-width: 620px){ .work.is-wide { grid-column: span 1; aspect-ratio: 4/3; } }

/* --------------------- Avant / Après (comparateur) ---------------- */
.ba { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); user-select: none; touch-action: none; aspect-ratio: 4/3; background: var(--ink-2); }
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ba__after { clip-path: inset(0 0 0 var(--pos, 50%)); }
.ba__label { position: absolute; top: 1rem; padding: .35rem .8rem; border-radius: 999px; font-size: .76rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; background: rgba(20,20,24,.66); color: #fff; backdrop-filter: blur(4px); }
.ba__label--before { left: 1rem; } .ba__label--after { right: 1rem; background: var(--brick); }
.ba__handle { position: absolute; top: 0; bottom: 0; left: var(--pos, 50%); width: 3px; background: #fff; transform: translateX(-50%); box-shadow: 0 0 0 1px rgba(0,0,0,.15); }
.ba__grip { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 48px; height: 48px; border-radius: 50%; background: #fff; display: grid; place-items: center; box-shadow: var(--shadow); }
.ba__grip svg { width: 22px; height: 22px; color: var(--ink); }
.ba__range { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }

/* ------------------------------ Lightbox -------------------------- */
.lightbox { position: fixed; inset: 0; z-index: 120; display: flex; align-items: center; justify-content: center; padding: clamp(1rem,4vw,3rem); background: rgba(16,16,20,.92); opacity: 0; visibility: hidden; transition: opacity .35s; }
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox figure { max-width: 1100px; width: 100%; }
.lightbox img { width: 100%; max-height: 80vh; object-fit: contain; border-radius: 10px; box-shadow: var(--shadow-lg); }
.lightbox figcaption { color: rgba(255,255,255,.82); text-align: center; margin-top: 1rem; font-size: .95rem; }
.lightbox__close, .lightbox__nav { position: absolute; background: rgba(255,255,255,.12); border-radius: 50%; width: 52px; height: 52px; display: grid; place-items: center; transition: background var(--t); }
.lightbox__close:hover, .lightbox__nav:hover { background: var(--brick); }
.lightbox__close { top: 1.4rem; right: 1.4rem; } .lightbox__close svg, .lightbox__nav svg { width: 24px; height: 24px; color: #fff; }
.lightbox__nav { top: 50%; transform: translateY(-50%); } .lightbox__nav--prev { left: 1rem; } .lightbox__nav--next { right: 1rem; }
@media (max-width: 640px){ .lightbox__nav { top: auto; bottom: 1.2rem; transform: none; } .lightbox__nav--prev{ left: 30%; } .lightbox__nav--next{ right: 30%; } }

/* --------------------------- Bloc média/texte --------------------- */
.media-card { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.media-card img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 5/4; }
.media-badge { position: absolute; bottom: 1.2rem; left: 1.2rem; background: rgba(255,255,255,.94); backdrop-filter: blur(6px); border-radius: 14px; padding: .9rem 1.1rem; box-shadow: var(--shadow); max-width: 70%; }
.media-badge strong { display: block; font-family: var(--font-display); }
.media-badge span { font-size: .85rem; color: var(--concrete); }

.checklist { display: grid; gap: .8rem; margin-top: 1.6rem; }
.checklist li { display: flex; gap: .75rem; align-items: flex-start; }
.checklist svg { width: 22px; height: 22px; color: var(--brick); flex: none; margin-top: 2px; }
.checklist b { font-family: var(--font-display); }

/* --------------------------- Zone d'intervention ------------------ */
.zone { display: grid; gap: 2rem; }
@media (min-width: 900px){ .zone { grid-template-columns: 1.1fr .9fr; align-items: center; } }
.zone__map { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
.zone__map iframe { display: block; width: 100%; height: 380px; border: 0; }
.town-list { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1.4rem; }
.town { padding: .45rem .9rem; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: .9rem; }
.town--hl { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ------------------------------ Plans 3D -------------------------- */
.plan-grid { display: grid; gap: clamp(1rem,2vw,1.6rem); grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); }
.plan { border-radius: var(--radius); overflow: hidden; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform var(--t), box-shadow var(--t); display: flex; flex-direction: column; }
.plan:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.plan__media { aspect-ratio: 16/11; overflow: hidden; background: var(--paper-2); cursor: zoom-in; }
.plan__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.plan:hover .plan__media img { transform: scale(1.06); }
.plan__body { padding: 1.2rem 1.3rem 1.4rem; }
.plan__cat { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--brick); font-weight: 600; }
.plan__body h3 { font-size: 1.12rem; margin: .3rem 0 .4rem; }
.plan__body p { font-size: .92rem; color: var(--concrete); }

/* --------------------- Maquette 3D interactive -------------------- */
.viewer3d { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg);
  background: radial-gradient(130% 130% at 50% 0%, #30303a 0%, #1c1c20 62%, #141417 100%);
  aspect-ratio: 4/3; min-height: 440px; max-width: 100%; }
@media (max-width: 640px){ .viewer3d { min-height: 0; } }
.viewer3d canvas { display: block; width: 100%; height: 100%; max-width: 100%; touch-action: none; cursor: grab; }
.viewer3d.is-grabbing canvas { cursor: grabbing; }
.viewer3d__badge { position: absolute; top: 1rem; left: 1rem; z-index: 2; display: inline-flex; align-items: center; gap: .55rem; padding: .5rem .85rem .5rem .68rem; border-radius: 999px; background: rgba(20,20,24,.55); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,.16); color: #fff; font-family: var(--font-display); font-weight: 600; font-size: .82rem; letter-spacing: .01em; box-shadow: 0 8px 22px -10px rgba(0,0,0,.7); }
.viewer3d__badge-ic { width: 18px; height: 18px; color: #ff7a5c; flex: none; }
.viewer3d__live { display: inline-flex; align-items: center; gap: .42rem; padding-left: .58rem; border-left: 1px solid rgba(255,255,255,.22); color: rgba(255,255,255,.72); font-weight: 500; font-size: .68rem; text-transform: uppercase; letter-spacing: .09em; }
.viewer3d__live i { width: 7px; height: 7px; border-radius: 50%; background: #36d39b; box-shadow: 0 0 0 0 rgba(54,211,155,.6); animation: livepulse 1.9s ease-out infinite; }
@keyframes livepulse { 0% { box-shadow: 0 0 0 0 rgba(54,211,155,.55); } 70% { box-shadow: 0 0 0 7px rgba(54,211,155,0); } 100% { box-shadow: 0 0 0 0 rgba(54,211,155,0); } }
@media (prefers-reduced-motion: reduce){ .viewer3d__live i { animation: none; } }
.viewer3d__hint { position: absolute; left: 50%; bottom: 1rem; transform: translateX(-50%); z-index: 2; display: inline-flex; align-items: center; gap: .5rem; padding: .5rem .95rem; border-radius: 999px; background: rgba(255,255,255,.12); backdrop-filter: blur(8px); color: rgba(255,255,255,.9); font-size: .82rem; pointer-events: none; transition: opacity var(--t); }
.viewer3d__hint svg { width: 16px; height: 16px; }
.viewer3d.is-active .viewer3d__hint { opacity: 0; }
.viewer3d__fallback { position: absolute; inset: 0; display: none; }
.viewer3d__fallback img { width: 100%; height: 100%; object-fit: cover; }
.viewer3d.is-fallback .viewer3d__fallback { display: block; }
.viewer3d.is-fallback canvas, .viewer3d.is-fallback .viewer3d__hint { display: none; }

/* Atouts en ligne (présentation sans cartes) */
.usp { display: grid; gap: 1.8rem 2.4rem; }
@media (min-width: 720px){ .usp { grid-template-columns: repeat(3,1fr); } }
.usp__item { display: flex; gap: 1rem; align-items: flex-start; }
.usp__ic { flex: none; width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; color: var(--brick); background: var(--brick-050); }
.usp__ic svg { width: 25px; height: 25px; }
.usp__item h3 { font-size: 1.12rem; margin-bottom: .35rem; }
.usp__item p { font-size: .95rem; color: var(--concrete); }

/* ----------------------------- CTA band --------------------------- */
.cta-band { position: relative; overflow: hidden; background: var(--brick); color: #fff; border-radius: var(--radius-lg); padding: clamp(2.4rem,5vw,3.6rem); box-shadow: var(--shadow-lg); isolation: isolate; }
.cta-band::before { content: ""; position: absolute; inset: -40% -10% auto auto; width: 520px; height: 520px; background: radial-gradient(circle, rgba(255,255,255,.18), transparent 65%); z-index: -1; }
.cta-band h2 { color: #fff; max-width: 22ch; }
.cta-band p { color: rgba(255,255,255,.9); max-width: 50ch; margin-top: .8rem; }
.cta-band__inner { display: grid; gap: 1.6rem; }
@media (min-width: 860px){ .cta-band__inner { grid-template-columns: 1.4fr auto; align-items: center; } }

/* ------------------------------ Formulaire ------------------------ */
.contact-grid { display: grid; gap: clamp(1.6rem,4vw,3rem); }
@media (min-width: 920px){ .contact-grid { grid-template-columns: 1fr 1.15fr; align-items: start; } }
.info-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.7rem; box-shadow: var(--shadow-sm); }
.info-list { display: grid; gap: 1.3rem; margin-top: .4rem; }
.info-list li { display: flex; gap: 1rem; align-items: flex-start; }
.info-list .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--brick-050); color: var(--brick); display: grid; place-items: center; flex: none; }
.info-list .ic svg { width: 22px; height: 22px; }
.info-list dt { font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--concrete); }
.info-list dd { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.info-list a:hover { color: var(--brick); }

.form { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.5rem,3vw,2.2rem); box-shadow: var(--shadow); }
.form-grid { display: grid; gap: 1.1rem; }
@media (min-width: 560px){ .form-grid--2 { grid-template-columns: 1fr 1fr; } }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field label { font-size: .85rem; font-weight: 600; font-family: var(--font-display); }
.field label .req { color: var(--brick); }
.field input, .field textarea, .field select {
  border: 1.5px solid var(--line); border-radius: 12px; padding: .85rem 1rem; background: var(--paper);
  transition: border-color var(--t), box-shadow var(--t), background var(--t);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--brick); background: #fff; box-shadow: 0 0 0 4px var(--brick-050); }
.form__consent { display: flex; gap: .65rem; align-items: flex-start; font-size: .86rem; color: var(--concrete); }
.form__consent input { width: 20px; height: 20px; accent-color: var(--brick); flex: none; margin-top: 2px; }
.form__note { font-size: .82rem; color: var(--concrete); }
.form-status { display: none; padding: .9rem 1.1rem; border-radius: 12px; font-size: .92rem; }
.form-status.is-visible { display: block; }
.form-status--ok { background: #e8f5ec; color: #1d6b3a; border: 1px solid #bfe3cb; }

/* ------------------------------- FAQ ------------------------------ */
.faq { display: grid; gap: .8rem; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .3rem 1.3rem; transition: box-shadow var(--t), border-color var(--t); }
.faq details[open] { box-shadow: var(--shadow-sm); border-color: var(--brick-100); }
.faq summary { list-style: none; cursor: pointer; padding: 1.05rem 0; font-family: var(--font-display); font-weight: 600; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { width: 26px; height: 26px; flex: none; border-radius: 50%; background: var(--paper-2); display: grid; place-items: center; transition: transform var(--t), background var(--t); }
.faq summary .chev svg { width: 16px; height: 16px; }
.faq details[open] summary .chev { transform: rotate(180deg); background: var(--brick); color: #fff; }
.faq details p { padding: 0 0 1.1rem; color: var(--concrete); }

/* --------------------------- Testimonials ------------------------- */
.quote { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.8rem; box-shadow: var(--shadow-sm); height: 100%; display: flex; flex-direction: column; }
.quote__stars { color: #e8a33d; letter-spacing: 2px; margin-bottom: .8rem; }
.quote p { font-size: 1.02rem; color: var(--ink-2); }
.quote__who { margin-top: auto; padding-top: 1.2rem; display: flex; align-items: center; gap: .8rem; }
.quote__avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--brick); color: #fff; display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; }
.quote__name { font-family: var(--font-display); font-weight: 600; } .quote__role { font-size: .85rem; color: var(--concrete); }

/* ------------------------------ Footer ---------------------------- */
.footer { background: var(--ink); color: rgba(255,255,255,.66); padding-top: clamp(3.5rem,7vw,5.5rem); }
.footer__top { display: grid; gap: 2.4rem; padding-bottom: 3rem; }
@media (min-width: 760px){ .footer__top { grid-template-columns: 1.6fr 1fr 1fr 1.2fr; } }
.footer h4 { color: #fff; font-size: 1rem; letter-spacing: .04em; margin-bottom: 1.1rem; }
.footer__brand .brand__text { color: #fff; }
.footer__brand p { color: rgba(255,255,255,.6); margin-top: 1rem; max-width: 38ch; font-size: .95rem; }
.footer ul[role="list"] { display: grid; gap: .6rem; }
.footer a { transition: color var(--t); font-size: .95rem; }
.footer a:hover { color: #fff; }
.footer__contact li { display: flex; gap: .6rem; align-items: flex-start; margin-bottom: .7rem; font-size: .95rem; }
.footer__contact svg { width: 17px; height: 17px; color: var(--brick); flex: none; margin-top: 4px; }
.footer__socials { display: flex; gap: .5rem; margin-top: 1.2rem; }
.footer__socials a { width: 38px; height: 38px; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; display: grid; place-items: center; }
.footer__socials a:hover { background: var(--brick); border-color: var(--brick); color:#fff; }
.footer__socials svg { width: 18px; height: 18px; }
.footer__bar { border-top: 1px solid rgba(255,255,255,.12); padding: 1.6rem 0; display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; justify-content: space-between; align-items: center; font-size: .85rem; }
.footer__bar a:hover { color: #fff; }
.footer__legal { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.footer__credit { display: flex; justify-content: flex-end; padding: .2rem 0 1.4rem; }
.footer__credit img { height: 26px; width: auto; opacity: 1; transition: opacity .25s ease; }
.footer__credit a:hover img { opacity: .7; }

/* ----------------------------- Divers ----------------------------- */
.badge-strip { display: flex; flex-wrap: wrap; gap: 1.4rem 2.6rem; align-items: center; }
.badge-strip .item { display: flex; align-items: center; gap: .7rem; font-family: var(--font-display); font-weight: 600; }
.badge-strip svg { width: 30px; height: 30px; color: var(--brick); }

.divider { height: 1px; background: var(--line); border: 0; margin: 0; }

.prose { max-width: 72ch; }
.prose h2 { margin: 2.4rem 0 1rem; font-size: 1.6rem; }
.prose h3 { margin: 1.8rem 0 .6rem; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul { padding-left: 1.2rem; display: grid; gap: .4rem; margin: .6rem 0; }
.prose a { color: var(--brick); text-decoration: underline; text-underline-offset: 3px; }

.tagline-marquee { overflow: hidden; border-block: 1px solid var(--line); background: var(--paper-2); }
.tagline-marquee__track { display: flex; width: max-content; padding: 1rem 0; animation: marquee 34s linear infinite; }
.tagline-marquee:hover .tagline-marquee__track { animation-play-state: paused; }
.tagline-marquee__group { display: flex; align-items: center; gap: 3rem; padding-right: 3rem; flex: none; white-space: nowrap; }
.tagline-marquee__track span { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; color: var(--ink-2); display: inline-flex; align-items: center; gap: 1rem; letter-spacing: .01em; }
.tagline-marquee__track span::after { content: "•"; color: var(--brick); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce){ .tagline-marquee__track { animation: none; } .tagline-marquee__group { padding-right: 0; } }

/* --------------------- Animations au défilement ------------------- */
/* Masquage conditionné à la présence de JS (classe .js ajoutée dans le <head>) :
   sans JavaScript, tout le contenu reste visible. */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"]{ transition-delay: .08s; }
.reveal[data-delay="2"]{ transition-delay: .16s; }
.reveal[data-delay="3"]{ transition-delay: .24s; }
.reveal[data-delay="4"]{ transition-delay: .32s; }
@media (prefers-reduced-motion: reduce){ .reveal { opacity: 1 !important; transform: none !important; } }

/* Utilitaires */
.text-center { text-align: center; }
.mt-1 { margin-top: .6rem; } .mt-2 { margin-top: 1.2rem; } .mt-3 { margin-top: 2rem; } .mt-4 { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; }
.muted { color: var(--concrete); }
.nowrap { white-space: nowrap; }
.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; }
.skip-link { position: absolute; left: -999px; top: 0; z-index: 200; background: var(--ink); color: #fff; padding: .8rem 1.2rem; border-radius: 0 0 10px 0; }
.skip-link:focus { left: 0; }

@media print {
  .site-header, .topbar, .footer, .cta-band, .nav-toggle, .scroll-hint { display: none !important; }
  body { background: #fff; }
}