@import url('https://fonts.googleapis.com/css2?family=Bodoni+Moda:ital,wght@0,400..500;1,400..500&family=Inter:wght@400;500;600&display=swap');

:root {
  --ink: #17181A;
  --bg: #E7E4DC;
  --surface: #F5F3EC;
  --rust: #8B4A2B;
  --blue: #5B7380;
  --line: #CFC9B8;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

button, input, textarea { font-family: inherit; }

button:focus-visible, input:focus-visible, textarea:focus-visible, a:focus-visible {
  outline: 2px solid var(--rust);
  outline-offset: 2px;
}

.eyebrow {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rust);
}

/* --- Header / Nav --- */
header.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 44px;
  border-bottom: 1px solid var(--line);
}

.logo {
  font-family: 'Bodoni Moda', serif;
  font-size: 19px;
  font-weight: 500;
}

nav.main-nav {
  display: flex;
  gap: 30px;
}

nav.main-nav a {
  padding: 4px 0;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1.5px solid transparent;
}

nav.main-nav a:hover {
  border-bottom-color: var(--line);
}

nav.main-nav a.active {
  border-bottom-color: var(--rust);
}

/* --- Boutons / CTA --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  letter-spacing: 0.02em;
  background: var(--ink);
  color: var(--surface);
  border: none;
  padding: 13px 24px;
  cursor: pointer;
}

.btn:hover { background: var(--rust); }

/* --- Hero (accueil) --- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
}

.hero-text { padding: 70px 44px; }

.hero-text h1 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(34px, 4.4vw, 52px);
  line-height: 1.1;
  margin: 16px 0 22px;
}

.hero-text p.intro {
  font-size: 15px;
  line-height: 1.75;
  opacity: 0.8;
  max-width: 440px;
  margin-bottom: 28px;
}

.hero-plan {
  background: var(--surface);
  border-left: 1px solid var(--line);
}

/* --- Sections génériques --- */
.section { padding: 70px 44px 90px; }
.section h1 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: 34px;
  margin: 16px 0 30px;
}
.section-narrow { max-width: 780px; }

/* --- Grille projets --- */
.filters {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
}

.filter-btn {
  font-size: 12px;
  letter-spacing: 0.04em;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 7px 16px;
  border-radius: 999px;
  cursor: pointer;
}

.filter-btn.active {
  background: var(--ink);
  color: var(--surface);
  border-color: var(--ink);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  display: block;
  text-align: left;
}

.project-card .plan-frame {
  border: 1px solid var(--line);
  margin-bottom: 12px;
}

.project-card .card-type {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 4px;
}

.project-card .card-name {
  font-family: 'Bodoni Moda', serif;
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 4px;
}

.project-card .card-meta {
  font-size: 12.5px;
  opacity: 0.65;
}

/* --- Fiche projet --- */
.back-link {
  display: inline-block;
  font-size: 12.5px;
  color: var(--rust);
  margin-bottom: 30px;
}

.detail-plan {
  border: 1px solid var(--line);
  margin-bottom: 34px;
}

.spec-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.spec-row .spec-label {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.55;
  margin-bottom: 4px;
}

.spec-row .spec-value {
  font-family: 'Bodoni Moda', serif;
  font-size: 17px;
}

.detail-brief {
  font-size: 15px;
  line-height: 1.8;
  opacity: 0.85;
  margin-bottom: 28px;
  max-width: 640px;
}

.detail-subhead {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 12px;
}

.detail-list {
  list-style: none;
  max-width: 640px;
}

.detail-list li {
  font-size: 14.5px;
  line-height: 1.7;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}
.detail-list li:first-child { border-top: none; }

/* --- Studio --- */
.fact-row {
  display: flex;
  gap: 40px;
  border-top: 1px solid var(--line);
  padding-top: 28px;
  margin-top: 20px;
}

.fact-block .fact-number {
  font-family: 'Bodoni Moda', serif;
  font-size: 26px;
  margin-bottom: 4px;
}

.fact-block .fact-label {
  font-size: 12px;
  opacity: 0.65;
  max-width: 140px;
}

/* --- Services --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 70px;
}

.step-num {
  font-family: 'Bodoni Moda', serif;
  font-size: 22px;
  color: var(--rust);
  margin-bottom: 10px;
}

.step-title { font-size: 14.5px; font-weight: 600; margin-bottom: 8px; }
.step-text { font-size: 13px; line-height: 1.65; opacity: 0.75; }

.services-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 40px;
  margin-top: 18px;
}

.service-item {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.service-item .service-title {
  font-family: 'Bodoni Moda', serif;
  font-size: 18px;
  margin-bottom: 6px;
}

.service-item .service-text {
  font-size: 13.5px;
  line-height: 1.65;
  opacity: 0.75;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-grid h1 { margin-top: 16px; }

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  margin-top: 30px;
}

form.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.field label {
  display: block;
  font-size: 12.5px;
  margin-bottom: 6px;
  font-weight: 600;
}

.field input, .field textarea {
  width: 100%;
  border: none;
  border-bottom: 1.5px solid var(--ink);
  background: transparent;
  padding: 8px 2px;
  font-size: 14px;
  outline: none;
}

.field textarea { resize: vertical; }

.form-note {
  font-size: 12px;
  opacity: 0.6;
  margin-top: 4px;
}

/* --- Responsive --- */
@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .services-list { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  header.site-header { flex-direction: column; gap: 14px; padding: 18px 20px; }
  nav.main-nav { gap: 18px; flex-wrap: wrap; justify-content: center; }
  .hero-text, .section { padding-left: 20px; padding-right: 20px; }
  .project-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .spec-row { grid-template-columns: 1fr; gap: 10px; }
}