/* =========================================================
   Bureau Design Massé — feuille de style
   Couleur principale : changez --accent pour tout le site.
   ========================================================= */

:root {
  --accent: #1F5A8A;
  --accent-light: #EEF3F8;
  --ink: #15171A;
  --text: #4B5563;
  --muted: #6B7280;
  --line: #E5E7EB;
  --bg-soft: #F5F7F9;
  --placeholder: #E8ECF0;
  --radius: 10px;
  --max: 1160px;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-title: "Space Grotesk", "Inter", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 80px; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--ink); }
a:hover { color: var(--accent); }
h1, h2, h3 { font-family: var(--font-title); font-weight: 600; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
input, textarea, button, select { font: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section--soft { background: var(--bg-soft); }
.section--dark { background: var(--ink); color: #E5E7EB; }

.eyebrow { font-size: 14px; font-weight: 600; color: var(--accent); }
.section-title { font-size: clamp(30px, 3.4vw, 42px); line-height: 1.1; }
.section-head { display: flex; flex-direction: column; gap: 12px; max-width: 640px; margin-bottom: 48px; }
.section-head--row { max-width: none; flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 20px; }
.section-head--center { align-items: center; text-align: center; margin-left: auto; margin-right: auto; }
.lead { font-size: 18px; color: var(--text); max-width: 540px; }

.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 56px; align-items: start; }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 50px; padding: 0 26px; border-radius: 6px;
  font-weight: 600; text-decoration: none; cursor: pointer; border: 1px solid transparent;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { color: #fff; filter: brightness(1.1); }
.btn--outline { border-color: #D1D5DB; color: var(--ink); background: #fff; }
.btn--outline:hover { border-color: var(--ink); color: var(--ink); }
.link-arrow { font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }

/* ---------- En-tête ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo__mark { font-family: var(--font-title); font-weight: 700; font-size: 26px; color: var(--accent); letter-spacing: -0.02em; }
.logo__name { font-family: var(--font-title); font-weight: 600; font-size: 16px; padding-left: 12px; border-left: 1px solid #D1D5DB; }
.nav { display: flex; align-items: center; gap: 24px; font-size: 15px; font-weight: 500; }
.nav a { text-decoration: none; padding: 10px 0; }
.nav a[aria-current="page"] { color: var(--accent); }
.nav .btn { min-height: 42px; padding: 0 18px; color: #fff; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 6px; width: 44px; height: 44px; cursor: pointer; align-items: center; justify-content: center; }

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: 72px;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 8px 24px 20px;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 12px; border-bottom: 0; }
  .logo__name { display: none; }
}

/* ---------- Héros ---------- */
.hero { padding: 80px 0 88px; }
.hero__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 56px; align-items: center; }
.hero__text { display: flex; flex-direction: column; gap: 24px; }
.hero h1 { font-size: clamp(38px, 5vw, 62px); line-height: 1.05; letter-spacing: -0.025em; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; padding-top: 4px; }

/* ---------- Photos / emplacements ---------- */
.photo {
  position: relative; width: 100%; overflow: hidden;
  background: var(--placeholder); border-radius: var(--radius);
}
.photo img { width: 100%; height: 100%; object-fit: cover; }
.photo--hero { aspect-ratio: 5 / 4; border-radius: 12px; }
.photo--card { aspect-ratio: 16 / 10; border-radius: 0; }
.photo--square { aspect-ratio: 1 / 1; }
.photo__label {
  position: absolute; left: 14px; bottom: 14px;
  font-size: 12px; font-weight: 500; color: var(--text);
  background: #fff; padding: 4px 10px; border-radius: 4px;
}

/* ---------- Cartes ---------- */
.card { background: #fff; border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 12px; }
.card h3 { font-size: 19px; }
.card p { font-size: 15px; color: var(--text); }
.card__icon { color: var(--accent); }

.card-media { background: #fff; border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.card-media__body { padding: 24px 26px 28px; display: flex; flex-direction: column; gap: 8px; }
.card-media__body h3 { font-size: 20px; }
.card-media__body p { font-size: 15px; color: var(--text); }

/* ---------- Étapes ---------- */
.steps li { display: flex; align-items: center; gap: 18px; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 17px; font-weight: 500; }
.steps__num {
  width: 36px; height: 36px; flex: none; border-radius: 50%;
  background: var(--accent-light); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-title); font-weight: 600; font-size: 14px;
}
.panel-dark { background: var(--ink); color: #E5E7EB; border-radius: 12px; padding: 40px; display: flex; flex-direction: column; gap: 24px; }
.panel-dark h3 { color: #fff; font-size: 22px; }
.checklist { display: flex; flex-direction: column; gap: 18px; font-size: 15px; }
.checklist li { display: flex; gap: 12px; }
.checklist svg { flex: none; color: #7FB3E0; margin-top: 3px; }

/* ---------- Bandeau ergonomie ---------- */
.ergo { background: var(--accent); color: #fff; padding: 72px 0; }
.ergo__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 48px; align-items: center; }
.ergo__stat { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.ergo__num { font-family: var(--font-title); font-weight: 700; font-size: 88px; line-height: 1; letter-spacing: -0.04em; }
.ergo__stat p { font-size: 18px; max-width: 340px; line-height: 1.5; }
.quiz { background: rgba(255, 255, 255, 0.1); border-radius: 12px; padding: 28px 32px; display: flex; flex-direction: column; gap: 16px; }
.quiz__q { font-family: var(--font-title); font-weight: 600; font-size: 20px; }
.quiz__buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.quiz__btn { min-height: 46px; min-width: 96px; padding: 0 22px; border-radius: 6px; border: 1px solid #fff; background: transparent; color: #fff; font-weight: 600; cursor: pointer; }
.quiz__btn.is-active { background: #fff; color: var(--accent); }
.quiz__answer { font-size: 15px; line-height: 1.5; }
.quiz__answer a { color: #fff; font-weight: 600; }

/* ---------- Fauteuils ---------- */
.chair { display: flex; flex-direction: column; gap: 14px; }
.chair .photo { background: var(--bg-soft); }
.chair h3 { font-size: 18px; }

/* ---------- Partenaires ---------- */
.partners { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.partner {
  min-height: 112px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  padding: 20px; text-align: center;
}
.partner__name { font-family: var(--font-title); font-weight: 600; font-size: 22px; color: #374151; }
.partner__tag { font-size: 12px; color: var(--muted); }
.partner img { max-height: 56px; width: auto; }

/* ---------- Réalisations ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.filter {
  min-height: 42px; padding: 0 18px; border-radius: 999px;
  border: 1px solid #D1D5DB; background: #fff; color: var(--ink); font-weight: 500; cursor: pointer;
}
.filter.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }

.project { background: #fff; border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--line); text-align: left; padding: 0; cursor: pointer; font: inherit; color: inherit; width: 100%; }
.project:hover .project__title { color: var(--accent); }
.project__body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 6px; }
.project__meta { font-size: 13px; color: var(--muted); }
.project__title { font-family: var(--font-title); font-weight: 600; font-size: 20px; }
.project__desc { font-size: 15px; color: var(--text); }
.project__count { position: absolute; right: 12px; top: 12px; background: rgba(21, 23, 26, 0.75); color: #fff; font-size: 12px; padding: 3px 8px; border-radius: 4px; }
.empty { padding: 48px; text-align: center; color: var(--muted); background: var(--bg-soft); border-radius: var(--radius); }

.page-hero { padding: 72px 0 40px; }
.page-hero h1 { font-size: clamp(36px, 4.6vw, 56px); line-height: 1.05; margin: 12px 0 16px; }

/* Visionneuse */
.viewer { border: 0; padding: 0; width: min(1000px, 94vw); max-height: 92vh; border-radius: 12px; }
.viewer::backdrop { background: rgba(21, 23, 26, 0.8); }
.viewer__img { position: relative; background: var(--ink); aspect-ratio: 16 / 10; }
.viewer__img img { width: 100%; height: 100%; object-fit: contain; }
.viewer__nav { position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%; border: 0; background: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.viewer__nav--prev { left: 12px; }
.viewer__nav--next { right: 12px; }
.viewer__close { box-shadow: 0 2px 8px rgba(0,0,0,.2); position: absolute; top: 12px; right: 12px; width: 44px; height: 44px; border-radius: 50%; border: 0; background: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 2; }
.viewer__info { padding: 24px 28px 28px; display: flex; flex-direction: column; gap: 8px; }
.viewer__info h2 { font-size: 26px; }

/* ---------- Contact ---------- */
.contact-list { display: flex; flex-direction: column; gap: 18px; padding-top: 8px; }
.contact-item { display: flex; gap: 16px; align-items: center; text-decoration: none; }
.contact-item__icon { width: 44px; height: 44px; flex: none; border-radius: 50%; background: var(--accent-light); color: var(--accent); display: flex; align-items: center; justify-content: center; }
.contact-item__label { display: block; font-size: 13px; color: var(--muted); }
.contact-item__value { display: block; font-weight: 600; font-size: 17px; }

.form { background: var(--bg-soft); border-radius: 12px; padding: 36px; display: flex; flex-direction: column; gap: 18px; }
.form h3 { font-size: 20px; }
.form__row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 500; }
.form input, .form textarea { min-height: 48px; padding: 10px 14px; border: 1px solid #D1D5DB; border-radius: 6px; background: #fff; font-size: 16px; }
.form textarea { resize: vertical; }
.form .btn { border: 0; min-height: 52px; }

/* ---------- Pied de page ---------- */
.footer { background: var(--ink); color: #9CA3AF; font-size: 14px; padding: 40px 0; }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
.footer__brand { display: flex; align-items: center; gap: 12px; }
.footer__brand strong { font-family: var(--font-title); font-size: 20px; color: #fff; }
.footer a { color: #D1D5DB; }

/* ---------- Ajouts : photos de l'ancien site ---------- */
.photo--hero { aspect-ratio: 16 / 10; }
.slideshow img { position: absolute; inset: 0; opacity: 0; transition: opacity 1s ease; }
.slideshow img.is-active { opacity: 1; }

.chairs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 20px; }
.chairs-grid[hidden] { display: none; }
.chair { margin: 0; }
.chair .photo { background: #fff; border: 1px solid var(--line); }
.chair .photo img { object-fit: contain; padding: 12px; }
.chair figcaption { font-family: var(--font-title); font-weight: 600; font-size: 16px; text-align: center; }

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-top: 56px; }
.plans figure { margin: 0; display: flex; flex-direction: column; gap: 10px; }
.plans figcaption { font-size: 14px; color: var(--muted); }
.photo--plan { aspect-ratio: 4 / 3; background: #fff; border: 1px solid var(--line); }
.photo--plan img { object-fit: contain; }

.partner img { max-height: 64px; max-width: 100%; width: auto; object-fit: contain; }