/* Concrete Calculator — page-specific presentation.

   Shared shell, panels, hero (.rp-hero), stat tiles (.rp-tiles), chips, FAQ, related cards and
   Cozy's pick all come from styles.css and results.css. This file adds the multi-area form, the
   isometric diagram, the volume bar, the scenario explorer, the bag comparison and the price table.
   Only palette tokens are used, so light, dark and auto themes keep working. */

.concrete-page .concrete-settings {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0 16px;
}

.concrete-page .concrete-toggle { margin: 0 0 12px; }
.concrete-page .concrete-toggle .chip { min-height: 40px; }
.concrete-page .concrete-presets { margin: 8px 0 10px; flex-wrap: wrap; }
.concrete-page .concrete-presets .chip { min-height: 36px; }

.concrete-page .concrete-section {
  margin: 0 0 14px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  min-width: 0;
}

.concrete-page .concrete-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.concrete-page .concrete-section-name {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.concrete-page .concrete-remove {
  border: 0;
  background: none;
  padding: 4px;
  color: var(--danger);
  font: inherit;
  font-size: 0.85rem;
  text-decoration: underline;
  cursor: pointer;
}

.concrete-page .concrete-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 0 12px;
}

.concrete-page .concrete-grid-top {
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
}

.concrete-page .concrete-grid .field { margin-bottom: 10px; }
.concrete-page .concrete-grid .field label { font-size: 0.85rem; }

.concrete-page .concrete-pair {
  display: flex;
  align-items: stretch;
}

.concrete-page .concrete-pair input {
  min-width: 0;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.concrete-page .concrete-unit {
  display: flex;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-left: 0;
  border-radius: 0 8px 8px 0;
  background: var(--card);
  color: var(--muted);
  font-size: 0.82rem;
  white-space: nowrap;
}

.concrete-page .concrete-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 0 0 18px;
}

.concrete-page .concrete-actions .hint { margin: 0; flex: 1 1 220px; }

.concrete-page .concrete-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 4px 0 10px;
  font-size: 0.88rem;
  line-height: 1.45;
  cursor: pointer;
}

.concrete-page .concrete-check input {
  width: 18px;
  height: 18px;
  margin: 1px 0 0;
  flex: 0 0 auto;
  accent-color: var(--primary);
}

.concrete-page .concrete-post {
  margin-top: 8px;
  padding: 12px;
  border: 1px dashed var(--border);
  border-radius: 8px;
}

.concrete-page .concrete-post .hint { margin-bottom: 0; }

.concrete-page .concrete-disclosure {
  margin: 18px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
}

.concrete-page .concrete-disclosure summary {
  padding: 12px 16px;
  font-weight: 600;
  cursor: pointer;
}

.concrete-page .concrete-disclosure-grid,
.concrete-page .concrete-disclosure-body {
  padding: 0 16px 8px;
}

.concrete-page .concrete-disclosure-body .field { margin-bottom: 12px; }

/* ---------------------------------------------------------------- Results */

.concrete-page .rp-hero .value { overflow-wrap: anywhere; }
.concrete-page .concrete-stats .stat .value { overflow-wrap: anywhere; }
.concrete-page .concrete-stats .stat .hint { margin-bottom: 0; }

.concrete-page .result-block { margin-top: 22px; }

.concrete-page .concrete-diagram {
  margin-top: 6px;
  padding: 6px 4px 0;
  border-radius: var(--radius);
  background: var(--accent);
}

.concrete-page .concrete-diagram svg {
  display: block;
  width: 100%;
  max-height: 280px;
}

.concrete-page .concrete-diagram .face-top { fill: var(--highlight); opacity: 0.8; }
.concrete-page .concrete-diagram .face-front { fill: var(--accent); }
.concrete-page .concrete-diagram .face-side { fill: var(--border); }
.concrete-page .concrete-diagram .face-post { fill: var(--primary); opacity: 0.45; }
.concrete-page .concrete-diagram .edge {
  fill: none;
  stroke: var(--primary);
  stroke-width: 1.6;
  stroke-linejoin: round;
}
.concrete-page .concrete-diagram .edge-thin {
  stroke: var(--muted);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}
.concrete-page .concrete-diagram .svg-dim {
  fill: var(--text);
  font-size: 11px;
  font-weight: 600;
}

.concrete-page .rp-caption { margin: 10px 0 2px; }

.concrete-page .concrete-bar {
  display: flex;
  width: 100%;
  height: 22px;
  margin: 8px 0 10px;
  border-radius: 999px;
  overflow: hidden;
  background: var(--accent);
}

.concrete-page .concrete-bar-fill {
  display: block;
  height: 100%;
  background: var(--primary);
  transition: width 0.25s ease;
}

.concrete-page .concrete-bar-extra {
  display: block;
  height: 100%;
  background: var(--highlight);
  transition: width 0.25s ease;
}

.concrete-page .concrete-bar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin: 0 0 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.concrete-page .concrete-bar-legend b { color: var(--text); }
.concrete-page .concrete-bar-legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 5px;
  border-radius: 3px;
  vertical-align: baseline;
}
.concrete-page .concrete-bar-legend .key-fill { background: var(--primary); }
.concrete-page .concrete-bar-legend .key-extra { background: var(--highlight); }

/* ---------------------------------------------------------------- Scenario */

.concrete-page .concrete-scenario {
  margin-top: 10px;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--accent);
}

.concrete-page .concrete-slider-label {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 12px;
  margin-bottom: 6px;
  font-size: 0.9rem;
  font-weight: 600;
}

.concrete-page .concrete-slider-label output {
  font-weight: 700;
  color: var(--primary);
}

.concrete-page .concrete-scenario input[type="range"] {
  width: 100%;
  min-height: 32px;
  accent-color: var(--primary);
  margin: 0 0 4px;
}

.concrete-page .concrete-scenario .concrete-presets { margin: 4px 0 12px; }

.concrete-page .concrete-scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.concrete-page .concrete-scenario-card {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}

.concrete-page .concrete-scenario-card.is-plus { border-color: var(--highlight); }

.concrete-page .concrete-scenario-card .label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
}

.concrete-page .concrete-scenario-card strong {
  font-size: 1.08rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.concrete-page .concrete-scenario-card .hint {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.4;
}

.concrete-page #apply-scenario { margin-top: 2px; }

/* ---------------------------------------------------------------- Bags and prices */

.concrete-page .concrete-bags {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.concrete-page .concrete-bag-row {
  display: grid;
  grid-template-columns: minmax(96px, 1.15fr) minmax(60px, 1.6fr) 52px 78px;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
}

.concrete-page .concrete-bag-row.is-active {
  padding: 6px 8px;
  margin: -6px -8px;
  border-radius: 8px;
  background: var(--accent);
}

.concrete-page .concrete-bag-label { font-weight: 600; }
.concrete-page .concrete-bag-row.is-active .concrete-bag-label { color: var(--primary); }

.concrete-page .concrete-bag-bar {
  display: block;
  height: 10px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
}

.concrete-page .concrete-bag-bar i {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--primary);
}

.concrete-page .concrete-bag-row.is-active .concrete-bag-bar i { background: var(--highlight); }

.concrete-page .concrete-bag-count {
  font-weight: 700;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.concrete-page .concrete-bag-yield {
  font-size: 0.74rem;
  color: var(--muted);
  text-align: right;
}

.concrete-page .concrete-prices {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.concrete-page .concrete-price-row {
  display: grid;
  grid-template-columns: minmax(110px, 1fr) auto;
  align-items: baseline;
  gap: 2px 12px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
}

.concrete-page .concrete-price-row b { font-size: 1.1rem; }
.concrete-page .concrete-price-row .hint {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.78rem;
}

.concrete-page .concrete-price-row.is-missing b {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--muted);
}

/* ---------------------------------------------------------------- Recap and article */

.concrete-page .concrete-table-wrap {
  overflow-x: auto;
  margin-top: 8px;
}

.concrete-page .concrete-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.concrete-page .concrete-table th,
.concrete-page .concrete-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.concrete-page .concrete-table thead th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.concrete-page .concrete-table tbody th { font-weight: 600; }
.concrete-page .concrete-table tfoot th { font-weight: 600; }
.concrete-page .concrete-table tfoot tr:last-child th,
.concrete-page .concrete-table tfoot tr:last-child td { border-bottom: 0; }
.concrete-page .concrete-table .recap-strong th,
.concrete-page .concrete-table .recap-strong td { font-weight: 700; }
.concrete-page .concrete-table .hint { margin: 0; }

.concrete-page .formula {
  padding: 10px 12px;
  border-left: 3px solid var(--highlight);
  border-radius: 0 8px 8px 0;
  background: var(--accent);
  font-weight: 600;
}

.concrete-page .concrete-code {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.82rem;
  line-height: 1.55;
  overflow-x: auto;
}

.concrete-page .concrete-sources {
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--muted);
}

.concrete-page .concrete-sources a { color: var(--primary); }
.concrete-page .calc-info .fact-list { margin-top: 12px; }
.concrete-page .calc-info .fact h3 { margin-bottom: 4px; }
.concrete-page .error { margin-bottom: 14px; }

/* ---------------------------------------------------------------- Small screens */

@media (max-width: 620px) {
  .concrete-page .concrete-settings { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .concrete-page .concrete-grid-top { grid-template-columns: minmax(0, 1fr); }
  .concrete-page .concrete-scenario-grid { grid-template-columns: minmax(0, 1fr); }
  .concrete-page .concrete-section { padding: 12px; }
  .concrete-page .concrete-scenario { padding: 12px; }

  .concrete-page .concrete-bag-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 4px 10px;
    padding: 6px 0;
  }
  .concrete-page .concrete-bag-bar {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  .concrete-page .concrete-bag-yield {
    grid-column: 1 / -1;
    grid-row: 3;
    text-align: left;
  }
  .concrete-page .concrete-bag-row.is-active { margin: 0; }
  .concrete-page .concrete-table th,
  .concrete-page .concrete-table td { padding: 7px 8px; }
}

@media (max-width: 430px) {
  .concrete-page .concrete-section { padding: 10px; }
  .concrete-page .concrete-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .concrete-page .concrete-grid-top { grid-template-columns: minmax(0, 1fr); }
  .concrete-page .concrete-pair input { font-size: 16px; }
  .concrete-page .concrete-bag-label { font-size: 0.82rem; }
  .concrete-page .rp-caption { font-size: 0.86rem; }
}

@media (prefers-reduced-motion: reduce) {
  .concrete-page .concrete-bar-fill,
  .concrete-page .concrete-bar-extra { transition: none; }
}