/* ═══════════════════════════════════════
   SHARED STYLES — portfolio + projet pages
   ═══════════════════════════════════════ */

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

:root {
  --bg: #f5f4f0;
  --bg2: #eceae3;
  --surface: #ffffff;
  --ink: #1a1916;
  --ink2: #4a4844;
  --ink3: #8a8780;
  --accent: #c8521a;
  --accent2: #2a52be;
  --border: #d8d5cc;
  --mono: 'DM Mono', monospace;
  --sans: 'Sora', sans-serif;
  --radius: 4px;
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 max(2rem, 5vw);
  height: 60px;
  background: rgba(245,244,240,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--mono);
  font-size: 40px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-decoration: none;
}

.eseo-title {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-decoration: none;

  position: relative; /* nécessaire pour ::after */
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
  transition: color var(--transition);
}

.eseo-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px; /* distance sous le texte */
  width: 0;
  height: 1px; /* épaisseur de la barre */
  background-color: var(--accent);
  transition: width var(--transition);
}

.eseo-title:hover::after {
  width: 200%; /* la barre s'étend au survol */
}

.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  font-family: var(--mono); font-size: 12px; font-weight: 400;
  color: var(--ink2); text-decoration: none;
  letter-spacing: 0.06em; text-transform: uppercase;
  transition: color var(--transition); position: relative;
}
.nav-links a::after {
  content:''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px; background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  text-decoration: none; border-radius: var(--radius);
  transition: all var(--transition); cursor: pointer; border: 1px solid;
}
.btn-primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--ink); background: var(--bg2); }

/* ── TAGS ── */
.tag {
  font-family: var(--mono); font-size: 12px;
  padding: 0.3rem 0.65rem;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 2px; color: var(--ink2);
}

/* ── FADE-IN ── */
.fade-in {
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.55s cubic-bezier(.4,0,.2,1), transform 0.55s cubic-bezier(.4,0,.2,1);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── FOOTER ── */
footer {
  max-width: 1100px; margin: 0 auto;
  padding: 2.5rem max(2rem, 6vw);
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid var(--border);
}
.footer-copy { font-family: var(--mono); font-size: 11px; color: var(--ink3); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a {
  font-family: var(--mono); font-size: 11px; color: var(--ink3);
  text-decoration: none; transition: color var(--transition);
}
.footer-links a:hover { color: var(--ink); }

/* ── SPINNER ── */
.spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(200,82,26,0.3); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
}