* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --paper: #FAF6EF; --paper-dim: #F1EAD9; --ink: #1C2B2E; --ink-soft: #4B5A5C;
  --terracotta: #C1572A; --terracotta-soft: #E8C7AE; --slate: #34536B; --slate-soft: #C9D6DE;
  --amber: #8A6D3B; --amber-soft: #E3D2AE; --rust: #A33D3D; --rust-soft: #E6C6C0;
  --green: #2A7A4E; --green-soft: #C8E0D2;
  --line: #DCD3BD; --card: #F8F3EA; --card-alt: #F2EBE1;
}
body {
  background: var(--paper); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh; -webkit-font-smoothing: antialiased;
}
.mono { font-family: "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 40px 24px 80px; }
.site-header {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 14px 20px; margin-bottom: 24px;
}
.theme-bar { display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.theme-bar .nav-btn {
  background: var(--card); border: 1px solid var(--line); border-radius: 6px;
  padding: 6px 14px; cursor: pointer; font-size: 13px; color: var(--ink);
  font-family: "SF Mono", monospace; transition: background 0.2s, border 0.2s;
  text-decoration: none;
}
.theme-bar .nav-btn:hover { background: var(--card-alt); }
.masthead {
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 12px;
}
.masthead-title { font-family: Georgia, serif; font-weight: 700; font-size: 17px; letter-spacing: 0.04em; text-transform: uppercase; }
.masthead-meta { font-family: "SF Mono", monospace; font-size: 11px; color: var(--ink-soft); text-align: right; line-height: 1.6; }
.eyebrow {
  display: flex; align-items: center; gap: 10px;
  font-family: "SF Mono", monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--terracotta); margin: 40px 0 14px;
}
.eyebrow-rule { width: 22px; height: 1px; background: var(--terracotta); }
.market-badge { display: inline-flex; align-items: center; gap: 4px; font-size: 10px; font-family: "SF Mono", monospace; font-weight: 600; padding: 2px 8px; border-radius: 4px; margin-left: 8px; vertical-align: middle; }
.market-badge.open { background: var(--green-soft); color: var(--green); }
.market-badge.closed { background: var(--rust-soft); color: var(--rust); }
.market-badge .dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.market-badge.open .dot { background: var(--green); }
.market-badge.closed .dot { background: var(--rust); }
.footer {
  margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line);
  font-family: "SF Mono", monospace; font-size: 10px; color: var(--ink-soft);
  text-align: center;
}
.footer a { color: var(--terracotta); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footer-story { font-size: 11px; line-height: 1.6; margin-bottom: 10px; padding: 12px 14px; background: var(--card-alt); border-radius: 6px; }
.footer-story strong { color: var(--ink); }
.footer-links { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; justify-content: center; margin-bottom: 10px; }
.footer-links .don-btn {
  display: inline-block; background: var(--terracotta); color: #fff !important; padding: 5px 14px;
  border-radius: 20px; font-size: 11px; font-weight: 600; transition: opacity 0.2s;
}
.footer-links .don-btn:hover { opacity: 0.85; text-decoration: none !important; }
.footer-links .sep { color: var(--line); font-size: 10px; }
.footer-zone { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 12px; }
.footer-story-small { font-size: 10px; line-height: 1.5; color: var(--ink-soft); margin-top: 8px; margin-bottom: 20px; font-style: italic; }
.section-title { font-family: Georgia, serif; font-size: 26px; font-weight: 600; margin-bottom: 8px; }
/* ── Notes explicatives (unifié) ── */
.section-desc {
  margin: 8px 0 16px;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.6;
  width: 100%;
}
.section-desc summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--terracotta);
  font-family: "SF Mono", monospace;
  user-select: none;
}
.section-desc summary:hover { opacity: 0.8; }
.section-desc[open] { padding-bottom: 8px; }
.section-desc[open] summary { margin-bottom: 6px; }
.section-desc strong { color: var(--ink); }
.note-grid {
  columns: 2;
  column-gap: 24px;
  column-rule: 1px solid var(--line);
  line-height: 2;
  max-width: none;
  width: 100%;
}
.disclaimer { font-size: 10px; color: var(--ink-soft); line-height: 1.5; margin-top: 8px; padding: 12px; background: var(--card-alt); border-radius: 6px; }
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(.25,.8,.25,1), transform 0.7s cubic-bezier(.25,.8,.25,1); }
[data-reveal].revealed { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ── PWA / Responsive ameliore ── */
@media (max-width: 768px) {
  .theme-bar { justify-content: center; gap: 4px; }
  .theme-bar .nav-btn { font-size: 11px; padding: 5px 10px; }
  .masthead { flex-direction: column; gap: 6px; align-items: flex-start; }
  .masthead-meta { text-align: left; }
  .section-title { font-size: 20px; }
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table { font-size: 11px; }
  th, td { padding: 6px 8px; white-space: nowrap; }
  .rec-grid { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .buffett-summary { grid-template-columns: repeat(3, 1fr); }
  .top-grid { grid-template-columns: 1fr; }
  .quote-row { grid-template-columns: 1fr 1fr; }
  .hero-stats-row { grid-template-columns: repeat(3, 1fr); }
  .hero-perf-row { grid-template-columns: 1fr; }
  .pulse-gauge .big-score { font-size: 36px; }
  .rec-card-big .rec-label { font-size: 22px; }
  .note-grid { columns: 1; }
  .compare-grid { grid-template-columns: 1fr !important; }
  .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .wrap { padding: 16px 12px 40px; }
  .theme-bar .nav-btn { font-size: 10px; padding: 4px 8px; }
  .section-title { font-size: 18px; }
  .hero-stat-box .num { font-size: 18px; }
  .hero-stat-box { padding: 10px; }
  .buffett-summary-card { padding: 12px; }
  .buffett-summary-card .num { font-size: 20px; }
  .quote-box .num { font-size: 16px; }
  .quote-box { padding: 10px; }
  .compare-grid { grid-template-columns: 1fr !important; }
  .detail-grid { grid-template-columns: 1fr; }
}