/* 人口预测计算器（/zh/population/）专用布局与图形样式。
   只定义本页新增的类；颜色沿用 theme.css 的 --c1/--c2 人口簇配色。
   CSP 为 style-src 'self'，所有样式必须留在本文件，页面内不写内联样式。 */

.population-tool [hidden] { display: none !important; }
[data-china-only][hidden] { display: none !important; }

.population-tool {
  --pop-line: #e6ebf2;
}

.population-tool .pop-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 16px;
}

.population-tool .pop-field { min-width: 0; }
.population-tool .pop-field-wide { grid-column: 1 / -1; }

.population-tool .pop-field label {
  display: block;
  margin-bottom: 5px;
  font-size: 13px;
  font-weight: 600;
  color: #33415a;
}

.population-tool .pop-field input,
.population-tool .pop-field select {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  color: var(--ink);
  border: 1px solid #cfd8e5;
  border-radius: 9px;
  background: #fff;
}

.population-tool .pop-field input:focus,
.population-tool .pop-field select:focus {
  outline: 2px solid rgba(190, 18, 60, 0.16);
  border-color: var(--c1);
}

.population-tool .input-unit {
  display: flex;
  gap: 8px;
}

.population-tool .input-unit input {
  flex: 1 1 auto;
  min-width: 0;
  font-variant-numeric: tabular-nums;
}

.population-tool .input-unit select {
  flex: 0 0 92px;
  width: 92px;
  padding: 10px 8px;
}

.population-tool .field-help {
  margin: 5px 0 0;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--muted);
}

.population-tool .pop-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.population-tool .status {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--warn);
  min-height: 1.2em;
}

/* 结果卡：人口簇用玫红渐变，和页头一致 */
.population-tool .result {
  margin-top: 16px;
  padding: 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.11), rgba(136, 19, 55, 0.05));
  border: 1px solid rgba(244, 63, 94, 0.24);
  box-shadow: 0 10px 26px rgba(136, 19, 55, 0.08);
}

.population-tool .result-kind {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c2);
}

.population-tool .result-value {
  display: block;
  margin: 4px 0 2px;
  font-size: 34px;
  color: var(--c2);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.population-tool .result-sub {
  margin: 2px 0 0;
  font-size: 13.5px;
  color: #4a5a70;
}

.population-tool .metrics {
  margin-top: 12px;
  border-top-color: rgba(244, 63, 94, 0.2);
}

.population-tool .metric {
  padding: 7px 0;
  border-bottom-color: rgba(136, 19, 55, 0.12);
  font-size: 13.5px;
}

.population-tool .metric-value { font-weight: 600; }

/* 结果分区 */
.pop-section {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--pop-line);
}

.pop-section h3 {
  margin: 0 0 4px;
  font-size: 17px;
}

.pop-section h4 {
  margin: 0 0 6px;
  font-size: 14px;
  color: #33415a;
}

.pop-section h4.pop-gap { margin-top: 14px; }

.pop-section-head p {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--muted);
}

.pop-chart,
.pop-shape,
.pop-pie {
  background: #fff;
  border: 1px solid var(--pop-line);
  border-radius: 12px;
  padding: 8px;
}

.pop-chart svg,
.pop-shape svg,
.pop-pie svg {
  display: block;
  width: 100%;
  height: auto;
}

.pop-shape svg { max-width: 360px; margin: 0 auto; }
.pop-pie svg { max-width: 220px; margin: 0 auto; }

.pop-grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 18px;
  align-items: start;
}

.pop-pie-wrap {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
}

.pop-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
}

.pop-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--pop-line);
}

.pop-legend li:last-child { border-bottom: 0; }

.pop-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex: none;
}

.pop-legend-value {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: #33415a;
}

/* 中国数据面板 */
.pop-data-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 10px;
}

.pop-mini-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  font-size: 13px;
  background: #fff;
  border: 1px solid var(--pop-line);
  border-radius: 8px;
  overflow: hidden;
}

.pop-mini-table th,
.pop-mini-table td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--pop-line);
}

.pop-mini-table th {
  background: #f8fafc;
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
  text-align: left;
}

.pop-mini-table tr:last-child td { border-bottom: 0; }

.pop-mini-table .num {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.pop-mini-table td:first-child { color: #33415a; }

/* SVG 图形：轴、线、点、文字 */
.pop-svg-axis { stroke: #e6ebf2; stroke-width: 1; }
.pop-svg-area { fill: rgba(244, 63, 94, 0.10); }
.pop-svg-line {
  fill: none;
  stroke: var(--c1);
  stroke-width: 2.5;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.pop-svg-dot { fill: #fff; stroke: var(--c2); stroke-width: 2; }
.pop-svg-label { fill: #5c6b7a; }
.pop-svg-value { font-weight: 700; fill: var(--c2); }

.pop-person-head { fill: var(--c1); }
.pop-person-body { fill: var(--c2); opacity: 0.82; }

.pop-seg-0 { fill: #fda4af; }
.pop-seg-1 { fill: #f43f5e; }
.pop-seg-2 { fill: #881337; }

.pop-dot.pop-seg-0 { background: #fda4af; }
.pop-dot.pop-seg-1 { background: #f43f5e; }
.pop-dot.pop-seg-2 { background: #881337; }
.pop-dot.pop-dot-total { background: #cbd5e1; }

.pop-pie-hole { fill: #fff; }
.pop-pie-year { font-size: 14px; font-weight: 700; fill: var(--c2); }
.pop-pie-cap { font-size: 11px; fill: #5c6b7a; }

.pop-shape-note { margin-top: 8px; }

@media (max-width: 900px) {
  .population-tool .pop-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .population-tool .pop-field-wide { grid-column: 1 / -1; }
  .pop-grid-2,
  .pop-data-grid { grid-template-columns: 1fr; }
  .pop-pie-wrap { grid-template-columns: 180px minmax(0, 1fr); }
}

@media (max-width: 600px) {
  .population-tool .pop-form { grid-template-columns: 1fr; }
  .population-tool .pop-field-wide { grid-column: auto; }
  .population-tool .input-unit select { flex-basis: 84px; width: 84px; }
  .population-tool .result-value { font-size: 28px; }
  .pop-pie-wrap { grid-template-columns: 1fr; }
}