/* SIG BTP — feuille de style partagée */

:root {
  --bg: #F7F7F5;
  --ink: #101114;
  --ink-2: #23262B;
  --ink-3: #2B3038;
  --muted: #5F636A;
  --muted-2: #71757B;
  --faint: #9DA1A7;
  --faint-2: #A6AAAF;
  --border: #DFDFDB;
  --panel: #EDEDEA;
  --danger: #8C2F2F;
  --danger-bg: #F6EDED;
  --danger-border: #E4CFCF;
  --success: #3F6B4A;
  --footer-border: #23262B;
  --max: 1220px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}

img { max-width: 100%; }
a { color: var(--ink); }
a:hover { color: var(--ink-2); }

input, textarea, select, button { font-family: inherit; font-size: 15px; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--ink); }
::placeholder { color: var(--faint-2); }

h1, h2, h3, h4 { font-family: "Archivo", sans-serif; margin: 0; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 40px);
  padding-right: clamp(16px, 4vw, 40px);
}

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 247, 245, 0.93);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  padding-top: 12px;
  padding-bottom: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
}
.brand { display: block; text-decoration: none; flex: 0 0 auto; }
.brand img { height: 44px; width: auto; display: block; mix-blend-mode: multiply; }
.main-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 26px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.main-nav a {
  text-decoration: none;
  color: var(--muted-2);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover { color: var(--ink); border-bottom-color: var(--border); }
.main-nav a.active { color: var(--ink); border-bottom-color: var(--ink); }
.main-nav a.cta {
  text-decoration: none;
  color: var(--bg);
  background: var(--ink);
  padding: 11px 20px;
  border-radius: 2px;
  font-weight: 600;
  border-bottom: none;
}
.main-nav a.cta:hover { background: var(--ink-2); color: var(--bg); }

/* Buttons */
.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 2px;
  font-weight: 600;
  font-size: 16px;
  padding: 18px 38px;
  cursor: pointer;
  border: none;
  text-align: center;
}
.btn-light { background: var(--bg); color: var(--ink); }
.btn-light:hover { background: #FFFFFF; color: var(--ink); }
.btn-dark { background: var(--ink); color: var(--bg); }
.btn-dark:hover { background: var(--ink-2); color: var(--bg); }
.btn-outline-light { border: 1px solid rgba(247,247,245,0.4); color: var(--bg); background: none; }
.btn-outline-light:hover { border-color: var(--bg); background: rgba(247,247,245,0.08); color: var(--bg); }

/* Sections */
.section { padding-top: clamp(56px, 8vw, 104px); padding-bottom: clamp(56px, 8vw, 104px); }
.section-tight-bottom { padding-bottom: clamp(24px, 3vw, 40px); }
.eyebrow {
  margin: 0 0 20px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-2);
  font-weight: 600;
}
.eyebrow-inverse { color: var(--faint); }

.bg-dark { background: var(--ink); color: var(--bg); }
.bg-dark-2 { background: var(--ink-2); color: var(--bg); }
.bg-panel { background: var(--panel); border-top: 1px solid var(--border); }
.border-top { border-top: 1px solid var(--border); }
.border-bottom { border-bottom: 1px solid var(--border); }

/* Footer */
.site-footer { background: var(--ink); color: var(--faint); border-top: 1px solid var(--footer-border); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(28px, 4vw, 48px);
  padding-top: clamp(44px, 6vw, 72px);
  padding-bottom: clamp(44px, 6vw, 72px);
}
.footer-grid img { height: 52px; width: auto; display: block; background: var(--bg); padding: 8px 12px; border-radius: 2px; }
.footer-grid p { margin: 20px 0 0; font-size: 15px; line-height: 1.7; max-width: 34ch; }
.footer-grid h4 {
  margin: 0 0 16px; font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bg); font-weight: 600;
}
.footer-links { display: flex; flex-direction: column; gap: 11px; font-size: 15px; }
.footer-links a { color: var(--faint); text-decoration: none; }
.footer-links a:hover { color: var(--bg); }
.footer-contact p { margin: 0 0 18px; font-size: 15px; line-height: 1.7; }
.footer-btn {
  display: inline-block; text-decoration: none; border: 1px solid #3A3E44; color: var(--bg);
  padding: 12px 22px; border-radius: 2px; font-size: 14px; font-weight: 600;
}
.footer-btn:hover { background: var(--ink-2); color: var(--bg); }
.footer-bottom { border-top: 1px solid var(--footer-border); }
.footer-bottom .wrap { padding: 22px clamp(16px, 4vw, 40px); font-size: 13px; color: #6C7076; }

/* Grid helpers */
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.hairline-grid { gap: 1px; background: var(--border); border: 1px solid var(--border); }

/* Forms */
.field { display: flex; flex-direction: column; gap: 8px; }
.field span {
  font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted);
}
.field input, .field textarea, .field select {
  border: 1px solid var(--border); background: var(--bg); padding: 13px 14px; border-radius: 2px; color: var(--ink);
}
.field textarea { resize: vertical; line-height: 1.6; }
.error-box {
  margin: 0; font-size: 14px; line-height: 1.6; color: var(--danger); background: var(--danger-bg);
  border: 1px solid var(--danger-border); padding: 12px 14px; border-radius: 2px;
}

/* Réalisations: filter chips */
.chip {
  padding: 10px 20px; border-radius: 2px; font-size: 14px; font-weight: 600; cursor: pointer;
  background: transparent; color: var(--muted); border: 1px solid var(--border);
}
.chip.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* Réalisations: project cards */
.project-card { display: flex; flex-direction: column; }
.project-media { aspect-ratio: 16/10; overflow: hidden; background: var(--panel); position: relative; }
.project-media img { width: 100%; height: 100%; object-fit: cover; display: block; filter: grayscale(1) contrast(1.03); }
.project-media .carousel-img { position: absolute; inset: 0; opacity: 0; transition: opacity 0.9s ease; }
.project-media .carousel-img.active { opacity: 1; }
.carousel-dots { position: absolute; bottom: 10px; left: 0; right: 0; display: flex; justify-content: center; gap: 6px; }
.carousel-dots span { width: 6px; height: 6px; border-radius: 50%; background: rgba(247,247,245,0.5); }
.carousel-dots span.active { background: var(--bg); }
.project-badge {
  position: absolute; top: 14px; left: 14px; background: rgba(16,17,20,0.88); color: var(--bg);
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; padding: 7px 12px; border-radius: 2px;
}
.project-meta { margin: 18px 0 8px; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted-2); font-weight: 600; }
.project-title { margin: 0 0 10px; font-weight: 700; font-size: 21px; line-height: 1.2; letter-spacing: -0.015em; }
.project-city { margin: 0 0 10px; font-size: 15px; font-weight: 500; color: var(--ink); }
.project-desc { margin: 0; font-size: 15px; line-height: 1.65; color: var(--muted); }
.empty-state { margin: 0; padding: 60px 0; text-align: center; font-size: 16px; color: var(--muted-2); }

/* Admin link (Réalisations page footer strip) */
.admin-link {
  display: inline-block; text-decoration: none; background: none; border: 1px solid #CFCFCA; color: var(--muted-2);
  padding: 10px 18px; border-radius: 2px; font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
}
.admin-link:hover { border-color: var(--ink); color: var(--ink); }

/* Avis (avis clients) */
.review-card { background: #FFFFFF; border: 1px solid var(--border); padding: clamp(20px, 2.6vw, 28px); display: flex; flex-direction: column; gap: 14px; }
.review-head { display: flex; align-items: center; gap: 14px; }
.review-avatar { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; background: var(--panel); flex: 0 0 auto; filter: grayscale(1); }
.review-avatar-placeholder {
  width: 48px; height: 48px; border-radius: 50%; background: var(--panel); color: var(--muted-2);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; flex: 0 0 auto;
}
.review-name { margin: 0; font-weight: 700; font-size: 16px; letter-spacing: -0.01em; }
.review-city { margin: 2px 0 0; font-size: 13px; color: var(--muted-2); }
.review-comment { margin: 0; font-size: 15px; line-height: 1.65; color: var(--muted); }

.stars { display: inline-flex; gap: 2px; font-size: 16px; line-height: 1; letter-spacing: 1px; }
.stars .on { color: var(--ink); }
.stars .off { color: var(--border); }

/* Sélecteur d'étoiles du formulaire (CSS pur, sans JS) */
.star-picker { display: flex; flex-direction: row-reverse; justify-content: flex-end; gap: 4px; }
.star-picker input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.star-picker label {
  font-size: 30px; line-height: 1; color: var(--border); cursor: pointer; transition: color 0.1s;
}
.star-picker label:hover,
.star-picker label:hover ~ label,
.star-picker input:checked ~ label {
  color: var(--ink);
}
.star-picker input:focus-visible + label { outline: 2px solid var(--ink); outline-offset: 2px; }

@keyframes riseIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }