/* ── Page d'un projet ── */
.project {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 48px 96px;
}

.btn-back {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.btn-back:hover { color: var(--accent); border-bottom-color: var(--gold); }
.btn-back:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.project > .btn-back:last-child { margin-top: 64px; }

/* ── En-tête ── */
.project-header {
  margin: 32px 0 56px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}
.project-header h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 500;
  line-height: 1.05;
  color: var(--accent);
}
.project-pitch {
  max-width: 62ch;
  margin-top: 20px;
  font-size: 1.1rem;
  color: var(--text);
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 48px;
  margin-top: 32px;
}
.project-meta dt { font-size: 0.82rem; color: var(--muted); }
.project-meta dd { color: var(--accent); }
.project-meta a { color: var(--accent); text-decoration-color: var(--gold); text-underline-offset: 4px; }
.project-meta a:hover { color: var(--gold); }
.project-meta-stack { flex-basis: 100%; }
.project-meta-stack .tags { margin-top: 6px; }

.tags { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.tags li {
  font-size: 0.78rem;
  line-height: 1;
  padding: 6px 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--accent);
}

/* ── Sections ── */
.project-section + .project-section { margin-top: 56px; }
.project-section h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.9rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 16px;
}
.project-section p { max-width: 68ch; }
.project-section p + p { margin-top: 12px; }
.muted { color: var(--muted); }

.project-list { max-width: 68ch; padding-left: 1.2em; }
.project-list li { margin-bottom: 8px; padding-left: 4px; }
.project-list li::marker { color: var(--gold); }

.problem-list { list-style: none; max-width: 68ch; display: grid; gap: 16px; }
.problem-list li {
  padding: 20px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 3px;
}
.problem-list p + p { margin-top: 8px; }
.problem-list strong { color: var(--accent); font-weight: 500; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .project { padding: 32px 24px 72px; }
  .project-meta { gap: 20px 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .btn-back { transition: none; }
}