/* volume-calcs.css — панель калькуляторов объёмов (KSH-552) */
.cc-vol {
  margin: 0 0 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--card) 92%, var(--secondary));
  overflow: hidden;
}
.cc-vol-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  user-select: none;
}
.cc-vol-head:hover { background: color-mix(in srgb, var(--secondary) 55%, transparent); }
.cc-vol-ic {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--chart-3) 16%, var(--card));
  color: var(--chart-3);
  flex-shrink: 0;
}
.cc-vol-title { font-size: 14px; font-weight: 700; color: var(--foreground); line-height: 1.2; }
.cc-vol-sub { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; }
.cc-vol-chev { margin-left: auto; color: var(--text-tertiary); transition: transform .15s ease; }
.cc-vol.open .cc-vol-chev { transform: rotate(180deg); }
.cc-vol-body { display: none; padding: 0 14px 14px; border-top: 1px solid var(--border); }
.cc-vol.open .cc-vol-body { display: block; }

.cc-vol-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 12px 0 10px;
}
.cc-vol-tab {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
}
.cc-vol-tab:hover { border-color: color-mix(in srgb, var(--foreground) 25%, var(--border)); }
.cc-vol-tab.on {
  background: var(--foreground);
  color: var(--card);
  border-color: var(--foreground);
}

.cc-vol-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
@media (max-width: 720px) {
  .cc-vol-grid { grid-template-columns: 1fr; }
}
.cc-vol-field label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 5px;
}
.cc-vol-field input,
.cc-vol-field select {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--foreground);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 13px;
}
.cc-vol-field input:focus,
.cc-vol-field select:focus {
  outline: 2px solid color-mix(in srgb, var(--chart-3) 35%, transparent);
  outline-offset: 1px;
}

.cc-vol-result {
  margin-top: 12px;
  padding: 12px;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--border);
}
.cc-vol-kpi {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}
.cc-vol-kpi > div {
  min-width: 110px;
  flex: 1;
  padding: 8px 10px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--secondary) 70%, transparent);
}
.cc-vol-kpi i {
  display: block;
  font-style: normal;
  font-size: 11px;
  color: var(--text-tertiary);
  margin-bottom: 2px;
}
.cc-vol-kpi b {
  font-size: 16px;
  font-weight: 750;
  color: var(--foreground);
}
.cc-vol-lines {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cc-vol-lines li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-top: 1px dashed color-mix(in srgb, var(--border) 80%, transparent);
  font-size: 13px;
}
.cc-vol-lines li:first-child { border-top: 0; }
.cc-vol-lines .meta { color: var(--text-tertiary); font-size: 12px; }
.cc-vol-assumptions {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
}
.cc-vol-assumptions summary {
  cursor: pointer;
  font-weight: 650;
  color: var(--text-secondary);
}
.cc-vol-assumptions ul {
  margin: 8px 0 0;
  padding-left: 18px;
}
.cc-vol-assumptions li { margin: 4px 0; }
.cc-vol-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  align-items: center;
}
.cc-vol-ok {
  font-size: 12px;
  color: var(--success-strong, #15803d);
  font-weight: 600;
}

/* превью раскладки */
.cc-vol-preview {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--secondary) 40%, transparent), transparent),
    var(--card);
  padding: 10px;
  overflow: auto;
}
.cc-vol-preview svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 360px;
}
.cc-vol-preview .full { fill: color-mix(in srgb, var(--chart-3) 22%, var(--card)); stroke: color-mix(in srgb, var(--chart-3) 55%, var(--border)); }
.cc-vol-preview .cut { fill: color-mix(in srgb, var(--warning) 28%, var(--card)); stroke: color-mix(in srgb, var(--warning) 60%, var(--border)); }
.cc-vol-preview .room { fill: none; stroke: var(--foreground); stroke-width: 2; }