/* Site nav */
.site-nav { padding: 0.75rem 0; margin-bottom: 0.5rem; font-size: 0.82rem; color: var(--text-muted); }
.site-nav a { color: var(--accent-dark); text-decoration: none; }
.site-nav a:hover { text-decoration: underline; }
.nav-sep { margin: 0 0.4rem; }
.nav-current { font-weight: 600; color: var(--earth); }

/* === Tabs simulateurs === */
.sim-tabs {
  display: flex; gap: 0; margin-bottom: 0.5rem;
  border: 1px solid var(--border); border-radius: 6px;
  overflow: hidden; background: #faf8f4;
}
.sim-tab {
  flex: 1; padding: 0.6rem 0.75rem;
  text-align: center; font-size: 0.82rem; font-weight: 600;
  color: #6b5d4f; text-decoration: none;
  border-right: 1px solid #d4c8b8;
  transition: all 0.15s; cursor: pointer;
}
.sim-tab:last-child { border-right: none; }
.sim-tab:hover { background: #f0e0c8; color: #5c4a3a; }
.sim-tab-active {
  background: #4a7a50; color: white;
  pointer-events: none;
}
.sim-tab-active:hover { background: #4a7a50; color: white; }
.sim-tab-disabled {
  opacity: 0.4; cursor: default; pointer-events: none;
}
.sim-tab-disabled small {
  font-size: 0.7rem; font-weight: 400; font-style: italic;
}

/* === Variables & Reset === */
:root {
  --earth: #5c4a3a;
  --earth-light: #8b7355;
  --wood: #d4a574;
  --wood-light: #f0e0c8;
  --sand: #f5f0e8;
  --cream: #faf8f4;
  --text: #2c2416;
  --text-muted: #6b5d4f;
  --border: #d4c8b8;
  --accent: #7a9e7e;
  --accent-dark: #4a7a50;
  --radius: 6px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--sand); color: var(--text); line-height: 1.5;
  padding: 1rem; max-width: 960px; margin: 0 auto;
}

/* Header */
header { text-align: center; padding: 2rem 1rem 1rem; }
header h1 { font-size: 1.4rem; color: var(--earth); font-weight: 700; margin-bottom: 0.25rem; }
header .subtitle { color: var(--text-muted); font-size: 0.9rem; }

/* Cards */
.card { background: var(--cream); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.25rem; }
.card h2 { font-size: 1.1rem; color: var(--earth); margin-bottom: 0.5rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--wood); }
.card h3 { font-size: 0.9rem; color: var(--earth-light); margin-bottom: 0.5rem; text-align: center; }
.section-intro { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 1rem; line-height: 1.45; }

/* Params */
.param-grid { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1.5rem; }
.param-row { display: grid; grid-template-columns: 180px 1fr 80px; align-items: center; gap: 0.75rem; }
.param-row label { font-size: 0.85rem; font-weight: 600; color: var(--earth); }
.param-row input[type="range"] { width: 100%; accent-color: var(--accent-dark); }
.param-row input[type="number"] { width: 80px; padding: 0.3rem 0.4rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.85rem; text-align: center; background: white; }

/* Visu */
.visu-container { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.visu-single { grid-template-columns: 1fr; }
.visu-box { border: 1px solid var(--border); border-radius: var(--radius); padding: 0.75rem; background: white; }
.visu-box svg { width: 100%; height: auto; }

/* Tables */
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
th, td { padding: 0.5rem 0.6rem; text-align: left; border-bottom: 1px solid var(--border); }
th { background: var(--wood-light); color: var(--earth); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
td { vertical-align: middle; }
tr:hover { background: rgba(212,165,116,0.08); }
tr.lot-disabled { opacity: 0.35; }
tr.lot-disabled td { text-decoration: line-through; }
tr.lot-disabled td:first-child, tr.lot-disabled td select, tr.lot-disabled td input { text-decoration: none; }
.col-check { width: 30px; text-align: center; }
td input[type="checkbox"] { accent-color: var(--accent-dark); width: 16px; height: 16px; cursor: pointer; }
td input[type="number"] { width: 70px; padding: 0.2rem 0.3rem; border: 1.5px solid var(--accent); border-radius: 3px; font-size: 0.82rem; text-align: right; background: rgba(122,158,126,0.06); }
td input[type="number"]:focus { border-color: var(--accent-dark); outline: none; background: white; }
td select { padding: 0.25rem 0.3rem; border: 1.5px solid var(--accent); border-radius: 3px; font-size: 0.78rem; background: rgba(122,158,126,0.06); cursor: pointer; max-width: 180px; }
td select:focus { border-color: var(--accent-dark); outline: none; background: white; }
.total-row { font-weight: 700; background: var(--wood-light); }
.grand-total { font-size: 1rem; color: var(--earth); background: var(--wood); }
tfoot td { padding: 0.6rem; }
tfoot input[type="number"] { width: 50px; text-align: center; border: 1.5px solid var(--accent); background: rgba(122,158,126,0.06); border-radius: 3px; }

/* Autonomie params */
.auto-params { background: white; border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; margin-bottom: 1rem; }
.auto-params h3 { text-align: left; margin-bottom: 0.75rem; }
.auto-param-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0.75rem; margin-bottom: 0.75rem; }
.auto-param-row { display: flex; flex-direction: column; gap: 0.25rem; }
.auto-param-row label { font-size: 0.82rem; font-weight: 600; color: var(--earth); }
.auto-param-row input, .auto-param-row select { padding: 0.35rem 0.5rem; border: 1.5px solid var(--accent); border-radius: var(--radius); font-size: 0.85rem; width: 100%; background: rgba(122,158,126,0.06); }
.auto-param-row input:focus, .auto-param-row select:focus { border-color: var(--accent-dark); outline: none; background: white; }
.auto-param-row input[readonly] { background: var(--sand); color: var(--text-muted); }
.auto-hint { font-size: 0.75rem; color: var(--text-muted); font-style: italic; }
.help-link { display: inline-block; width: 16px; height: 16px; background: var(--accent-dark); color: white; border-radius: 50%; text-align: center; line-height: 16px; font-size: 10px; font-weight: 700; text-decoration: none; margin-left: 4px; vertical-align: middle; }
.help-link:hover { background: var(--accent); }
.auto-computed { font-size: 0.82rem; color: var(--text); padding: 0.5rem 0; line-height: 1.6; }
.auto-computed strong { color: var(--earth); }

/* Axe blocks */
.auto-axe { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 0.75rem; overflow: hidden; }
.auto-axe.axe-disabled .axe-body { display: none; }
.auto-axe.axe-disabled .axe-header { opacity: 0.5; }
.axe-header { padding: 0.75rem 1rem; background: var(--wood-light); }
.axe-toggle { cursor: pointer; display: flex; align-items: center; gap: 0.5rem; }
.axe-toggle input[type="checkbox"] { accent-color: var(--accent-dark); width: 16px; height: 16px; }
.axe-toggle strong { font-size: 0.9rem; color: var(--earth); }
.axe-body { padding: 1rem; }

/* Questions */
.q-grid { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1rem; }
.q-block { border: 1px solid var(--border); border-radius: var(--radius); padding: 0.6rem 0.75rem; background: white; }
.q-label { font-size: 0.82rem; font-weight: 600; color: var(--earth); display: block; margin-bottom: 0.4rem; }
.q-options { display: flex; flex-direction: column; gap: 0.25rem; }
.q-options label { font-size: 0.8rem; color: var(--text); cursor: pointer; padding: 0.15rem 0; }
.q-options input[type="radio"] { accent-color: var(--accent-dark); margin-right: 0.3rem; }

/* Scenario result (recommendation) */
.scenario-result { font-size: 0.85rem; padding: 0.5rem 0.75rem; margin-bottom: 0.75rem; border-radius: var(--radius); background: rgba(122,158,126,0.12); color: var(--earth); font-weight: 600; }

/* Scenario selector */
.scenario-selector { display: flex; flex-direction: column; gap: 0.4rem; }
.scenario-option { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 0.5rem; padding: 0.5rem 0.7rem; border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer; transition: background 0.15s, border-color 0.15s; }
.scenario-option:hover { background: var(--wood-light); }
.scenario-option:has(input:checked) { border-color: var(--accent-dark); background: rgba(122,158,126,0.08); }
.scenario-option input[type="radio"] { accent-color: var(--accent-dark); }
.scenario-option strong { font-size: 0.82rem; }
.scenario-option span { font-size: 0.78rem; color: var(--text-muted); }
.scenario-price { font-weight: 700; color: var(--earth); font-size: 0.82rem; text-align: right; white-space: nowrap; }

.accordion-note { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.75rem; font-style: italic; line-height: 1.45; }

.auto-subtotal { margin-top: 0.75rem; padding: 0.75rem; background: var(--wood-light); border-radius: var(--radius); font-weight: 700; font-size: 0.95rem; color: var(--earth); text-align: center; }

/* Bilan */
.bilan-card { background: var(--wood-light); border-color: var(--wood); }
.bilan-card h2 { border-bottom-color: var(--earth); }
#tableBilan td { padding: 0.6rem 0.75rem; font-size: 0.9rem; border-bottom: 1px solid var(--border); }
#tableBilan td:first-child { font-weight: 600; }
#tableBilan td:not(:first-child) { text-align: right; width: 120px; }
.bilan-total { font-weight: 700; font-size: 1.1rem; }
.bilan-total td { background: var(--earth); color: white; padding: 0.75rem; }
.bilan-note { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.75rem; text-align: center; font-style: italic; }

/* CTA */
.cta-card { text-align: center; background: white; border-color: var(--accent-dark); }
.cta-text { font-size: 0.88rem; color: var(--text); margin-bottom: 0.75rem; }
.cta-button { display: inline-block; padding: 0.75rem 1.5rem; background: var(--accent-dark); color: white; border-radius: var(--radius); text-decoration: none; font-weight: 700; font-size: 0.95rem; transition: background 0.2s; }
.cta-button:hover { background: var(--accent); }
.cta-sub { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.5rem; }

/* Actions */
.actions-bar { display: flex; gap: 0.75rem; flex-wrap: wrap; justify-content: center; }
button { padding: 0.6rem 1.2rem; border: 1px solid var(--earth-light); border-radius: var(--radius); background: var(--earth); color: white; font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: background 0.2s; }
button:hover { background: var(--earth-light); }
button#btnReset { background: transparent; color: var(--earth); }
button#btnReset:hover { background: var(--wood-light); }

/* Footer */
footer { text-align: center; padding: 1.5rem 1rem; font-size: 0.78rem; color: var(--text-muted); }
footer a { color: var(--accent-dark); text-decoration: none; }
footer a:hover { text-decoration: underline; }
footer .license { margin-top: 0.25rem; font-size: 0.7rem; }

/* Responsive */
@media (max-width: 640px) {
  body { padding: 0.5rem; }
  header h1 { font-size: 1.1rem; }
  .param-row { grid-template-columns: 1fr 1fr; gap: 0.4rem; }
  .param-row label { grid-column: 1 / -1; }
  .visu-container { grid-template-columns: 1fr; }
  th, td { padding: 0.35rem 0.4rem; font-size: 0.75rem; }
  td input[type="number"] { width: 60px; }
  td select { max-width: 130px; font-size: 0.72rem; }
  .scenario-option { grid-template-columns: auto 1fr; }
  .scenario-price { grid-column: 2; }
  .auto-param-grid { grid-template-columns: 1fr; }
}

/* Print */
@media print {
  body { max-width: 100%; padding: 0; background: white; }
  .card { break-inside: avoid; border: none; }
  #actions, button, .cta-card { display: none; }
  input[type="range"] { display: none; }
  .bilan-card { background: var(--wood-light) !important; }
}