@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500&family=Source+Sans+3:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&display=swap');

:root {
  --ink: #1a1a1a;
  --paper: #f5f0e8;
  --paper-dark: #e8e0d0;
  --accent: #8b2500;
  --accent-light: #b8450a;
  --muted: #6b5e50;
  --border: #d0c4b0;
  --white: #fdfbf7;
  --shadow: rgba(40, 30, 20, 0.08);
  --serif: 'Cormorant Garamond', 'Georgia', serif;
  --sans: 'Source Sans 3', 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* === PASSWORD GATE === */
#gate {
  position: fixed; inset: 0;
  background: var(--ink);
  display: none;
  align-items: center; justify-content: center;
  z-index: 1000;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#gate.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.gate-inner {
  text-align: center; color: var(--paper);
  max-width: 400px; padding: 2rem;
}
.gate-inner h1 {
  font-family: var(--serif);
  font-weight: 300; font-size: 2.4rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  margin-bottom: 0.3em;
}
.gate-inner .sub {
  font-family: var(--serif);
  font-style: italic; font-size: 1.1rem;
  color: #a09080; margin-bottom: 2.5rem;
}
.gate-inner input {
  background: transparent;
  border: 1px solid #555;
  color: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  padding: 0.8rem 1.2rem;
  width: 100%; text-align: center;
  letter-spacing: 0.2em;
  outline: none;
  transition: border-color 0.3s;
}
.gate-inner input:focus { border-color: var(--accent-light); }
.gate-inner input::placeholder { color: #666; letter-spacing: 0.15em; }
.gate-error {
  color: var(--accent-light);
  font-size: 0.85rem;
  margin-top: 0.8rem;
  opacity: 0; transition: opacity 0.3s;
}
.gate-error.show { opacity: 1; }
.gate-hint {
  color: #555; font-size: 0.8rem;
  margin-top: 2rem;
}

/* === MAIN CONTENT === */
#content { display: block; }
#content.visible { display: block; }

/* === HEADER === */
header {
  background: var(--ink);
  color: var(--paper);
  padding: 6rem 2rem 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
header::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent, transparent 49px,
    rgba(255,255,255,0.02) 49px, rgba(255,255,255,0.02) 50px
  );
}
header h1 {
  font-family: var(--serif);
  font-weight: 300; font-size: 3.5rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  position: relative;
  margin-bottom: 0.3em;
}
header .subtitle {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.3rem;
  color: #a09080;
  position: relative;
}
header .author {
  font-family: var(--sans);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #888;
  margin-top: 2rem;
  position: relative;
}
header .badge {
  display: inline-block;
  border: 1px solid #555;
  padding: 0.3em 1.2em;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: #999;
  margin-top: 1.5rem;
  position: relative;
}

/* === TAB NAV === */
.tabnav {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  position: sticky; top: 0; z-index: 100;
  display: flex; justify-content: center; gap: 2rem;
  flex-wrap: wrap;
}
.tab-link {
  background: none;
  border: none;
  font-family: var(--sans);
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.3em 0;
  border-bottom: 1.5px solid transparent;
  transition: color 0.3s, border-color 0.3s;
  cursor: pointer;
}
.tab-link:hover,
.tab-link.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

/* === TAB PANELS === */
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.tab-panel.author-panel { background: var(--ink); color: var(--paper); padding: 5rem 2rem; max-width: none; }
.tab-panel.author-panel .author-inner { max-width: 800px; margin: 0 auto; }
.tab-panel.author-panel h2 { color: var(--paper); }
.tab-panel.author-panel p { color: #bbb; }
.tab-panel.author-panel .contact { margin-top: 2rem; font-family: var(--sans); font-size: 0.85rem; color: #888; letter-spacing: 0.1em; }
.tab-panel.author-panel .contact a { color: var(--accent-light); text-decoration: none; }

/* === SECTIONS === */
section.tab-panel { padding: 5rem 2rem; max-width: 800px; margin: 0 auto; }

section h2 {
  font-family: var(--serif);
  font-weight: 400; font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 0.3em;
  letter-spacing: 0.02em;
}
section h2 .num {
  font-weight: 300; color: var(--muted);
  font-size: 0.55em;
  display: block;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: var(--sans);
  margin-bottom: 0.3em;
}

section h3 {
  font-family: var(--serif);
  font-weight: 500; font-size: 1.3rem;
  color: var(--ink);
  margin: 2.5rem 0 0.8rem;
}

section p {
  margin-bottom: 1.2em;
  color: #333;
}

.lead {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 2rem;
  border-left: 2px solid var(--accent);
  padding-left: 1.5rem;
}

.divider {
  width: 60px;
  height: 1px;
  background: var(--border);
  margin: 4rem auto;
}

/* === VOLUMES === */
.volume-card {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 2rem 2.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  transition: box-shadow 0.3s, transform 0.2s;
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}
.volume-card { transition: background 0.25s, box-shadow 0.25s; }
.volume-card:hover { background: #faf7ef; box-shadow: 0 1px 3px var(--shadow); }
.volume-card .vol-num,
.volume-card .vol-subtitle,
.volume-card .vol-desc,
.volume-card .vol-genre { transition: color 0.25s; }
.volume-card:hover .vol-num,
.volume-card:hover .vol-subtitle,
.volume-card:hover .vol-desc,
.volume-card:hover .vol-genre { color: var(--ink); }
.volume-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.volume-card::after {
  content: '›';
  position: absolute;
  top: 1.4rem;
  right: 1.4rem;
  font-family: var(--serif);
  font-size: 2rem;
  line-height: 1;
  color: var(--border);
  transition: color 0.2s, transform 0.2s;
}
.volume-card:hover::after { color: var(--accent); transform: translateX(3px); }

.volume-card::before {
  content: 'Voir le détail';
  position: absolute;
  top: 1.6rem;
  right: 3rem;
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  transition: opacity 0.2s;
}
.volume-card:hover::before { opacity: 1; }

.volume-card .vol-num {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.volume-card .vol-title {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.2rem;
}
.volume-card .vol-subtitle {
  font-family: var(--serif);
  font-style: italic;
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 0.4rem;
}
.volume-card .vol-genre {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 1rem;
}
.volume-card .vol-desc {
  font-size: 0.95rem;
  color: #444;
  line-height: 1.7;
}
.volume-card .vol-status {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3em 0.8em;
  border-radius: 2px;
}
.status-done { background: #2d5a27; color: #fff; }
.status-draft { background: var(--accent); color: #fff; }
.status-plan { background: var(--muted); color: #fff; }
.status-sketch { background: var(--border); color: var(--ink); }

.vol-link {
  display: inline-block;
  margin-top: 1rem;
  margin-left: 0.8rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3em 0.8em;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.3s, color 0.3s;
}
.vol-link:hover { background: var(--ink); color: var(--paper); }

.volumes-subheading {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  color: var(--muted);
  font-size: 1.3rem;
}

/* === VOLUME DIALOG === */
#volume-dialog {
  inset: 0;
  margin: auto;
  border: none;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  max-width: 840px;
  width: calc(100% - 2rem);
  max-height: 90vh;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}
#volume-dialog::backdrop {
  background: rgba(20, 15, 10, 0.6);
}
#volume-dialog-content {
  padding: 3rem 3rem 2.5rem;
  max-height: 90vh;
  overflow-y: auto;
}
#volume-dialog-content h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.6rem;
  color: var(--ink);
  margin: 0 0 1rem;
}
#volume-dialog-content .lead { margin-top: 0; }
#volume-dialog-content p { margin-bottom: 1.2em; color: #333; }
#volume-dialog-content .genre-note {
  background: var(--paper-dark);
  border-left: 2px solid var(--accent-light);
  padding: 1rem 1.2rem;
  margin-bottom: 2rem;
  font-size: 0.95rem;
  color: #3a3a3a;
}
#volume-dialog-content .genre-note strong { color: var(--accent); }
#volume-dialog .dialog-close,
#volume-dialog .dialog-back {
  position: absolute;
  background: none;
  border: none;
  font-family: var(--sans);
  color: var(--muted);
  cursor: pointer;
  z-index: 2;
  transition: color 0.2s;
}
#volume-dialog .dialog-close:hover,
#volume-dialog .dialog-back:hover { color: var(--accent); }
#volume-dialog .dialog-close {
  top: 0.6rem; right: 1rem;
  font-size: 1.8rem;
  line-height: 1;
  padding: 0.2rem 0.6rem;
}
#volume-dialog .dialog-back {
  display: none;
  top: 1rem; left: 1rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  padding: 0.4rem 0.6rem;
}

@media (max-width: 900px) {
  #volume-dialog {
    width: 100vw;
    max-width: none;
    height: 100vh;
    max-height: none;
    border-radius: 0;
    box-shadow: none;
  }
  #volume-dialog::backdrop { background: var(--paper); }
  #volume-dialog-content { max-height: 100vh; padding: 4rem 1.8rem 2rem; }
  #volume-dialog .dialog-close { display: none; }
  #volume-dialog .dialog-back { display: inline-block; }
}

/* === TABLE === */
.state-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 2rem 0;
}
.state-table th {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: left;
  padding: 0.8rem 1rem;
  border-bottom: 2px solid var(--ink);
}
.state-table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.state-table tr:last-child td { border-bottom: 2px solid var(--ink); }

/* === COMPARABLES === */
.comp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}
.comp-item {
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--border);
}
.comp-item .comp-name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.comp-item .comp-desc {
  font-size: 0.88rem;
  color: #555;
  line-height: 1.6;
}

/* === DOWNLOADS === */
.downloads {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.8rem;
  margin: 2rem 0;
}
.dl-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.6rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.9rem 1.2rem;
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-align: center;
  transition: background 0.3s;
}
.dl-btn:hover { background: var(--accent); }
.dl-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.downloads--primary { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

/* === STEPS === */
.method-steps {
  counter-reset: step;
  margin: 2rem 0;
}
.method-step {
  counter-increment: step;
  padding: 1.5rem 1.5rem 1.5rem 4rem;
  position: relative;
  margin-bottom: 1rem;
  background: var(--white);
  border: 1px solid var(--border);
}
.method-step::before {
  content: counter(step);
  position: absolute; left: 1.2rem; top: 1.4rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent);
}
.method-step strong { color: var(--ink); }

/* === FOOTER === */
footer {
  text-align: center;
  padding: 3rem 2rem;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* === RESPONSIVE === */
@media (max-width: 700px) {
  header h1 { font-size: 2.2rem; letter-spacing: 0.1em; }
  header { padding: 4rem 1.5rem 3rem; }
  section.tab-panel { padding: 3rem 1.5rem; }
  .tab-panel.author-panel { padding: 3rem 1.5rem; }
  .comp-grid { grid-template-columns: 1fr; }
  .tabnav { gap: 1rem; padding: 0.8rem 1rem; }
  .tab-link { font-size: 0.7rem; }
  .volume-card { padding: 1.5rem 1.8rem; }
}

/* === PRINT === */
@media print {
  #gate { display: none !important; }
  .tabnav { display: none; }
  .tab-panel { display: block !important; padding: 2rem 0; page-break-before: always; }
  .tab-panel:first-of-type { page-break-before: avoid; }
  .volume-card { break-inside: avoid; }
}