/*
 * 深圳房地产项目经济测算工具 v4.0.0
 * 暗色主题样式表 — 适用于城市更新 & 土地整备利益统筹项目
 */

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface2: #1c2333;
  --border: #30363d;
  --text: #c9d1d9;
  --text2: #8b949e;
  --accent: #58a6ff;
  --green: #3fb950;
  --amber: #d2991d;
  --red: #f85149;
  --purple: #a371f7;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ===== Header ===== */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 8px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  z-index: 10;
}

.header h1 {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
}

.header-right {
  display: flex;
  gap: 6px;
  align-items: center;
}

.header-right button,
.header-right select {
  padding: 5px 12px;
  border-radius: 5px;
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 11px;
  font-family: inherit;
  background: transparent;
  color: var(--text2);
  transition: all .15s;
}

.header-right button:hover {
  background: var(--surface2);
  color: var(--text);
}

.header-right .btn-accent {
  background: #1f6feb;
  color: #fff;
  border-color: #1f6feb;
}

.header-right .btn-accent:hover {
  background: #1158c7;
}

.header-right .btn-success {
  background: #238636;
  color: #fff;
  border-color: #238636;
}

.header-right .btn-warn {
  background: #9e6a03;
  color: #fff;
  border-color: #9e6a03;
}

.header-right select {
  background: var(--bg);
  color: var(--text);
}

/* ===== Main Layout ===== */
.main-wrap {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.sidebar {
  width: 500px;
  min-width: 500px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  flex-shrink: 0;
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

.content {
  flex: 1;
  overflow-y: auto;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.content::-webkit-scrollbar {
  width: 4px;
}

.content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

/* ===== Sidebar Sections ===== */
.sec {
  border-bottom: 1px solid var(--border);
}

.sec-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 14px;
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  transition: background .15s;
}

.sec-hdr:hover {
  background: var(--surface2);
}

.sec-hdr .icon {
  font-size: 10px;
  color: var(--text2);
  transition: transform .2s;
}

.sec.collapsed .sec-hdr .icon {
  transform: rotate(-90deg);
}

.sec-body {
  padding: 0 14px 10px;
  overflow: hidden;
  transition: max-height .3s;
}

.sec.collapsed .sec-body {
  max-height: 0 !important;
  padding-top: 0;
  padding-bottom: 0;
}

/* ===== Form Groups ===== */
.fg {
  margin-bottom: 7px;
}

.fg label {
  display: block;
  font-size: 12px;
  color: var(--text2);
  margin-bottom: 2px;
  font-weight: 500;
}

.fg input,
.fg select {
  width: 100%;
  padding: 7px 9px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
}

.fg input:focus,
.fg select:focus {
  outline: none;
  border-color: var(--accent);
}

.fg input[readonly] {
  color: var(--accent);
  font-weight: 600;
  background: rgba(88, 166, 255, 0.03);
}

.fg input.input-error {
  border-color: var(--red);
  background: rgba(248, 81, 73, 0.04);
}

.row2 {
  display: flex;
  gap: 6px;
}

.row2 .fg {
  flex: 1;
}

.row3 {
  display: flex;
  gap: 6px;
}

.row3 .fg {
  flex: 1;
}

.row4 {
  display: flex;
  gap: 6px;
}

.row4 .fg {
  flex: 1;
}

/* ===== Info Banner ===== */
.info-banner {
  background: rgba(88, 166, 255, 0.04);
  border: 1px solid rgba(88, 166, 255, 0.12);
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 10px;
  color: var(--text2);
  line-height: 1.5;
  margin-bottom: 8px;
}

.info-banner strong {
  color: var(--accent);
}

/* ===== Property Type Card ===== */
.pt-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 8px;
  overflow: hidden;
}

.pt-card-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  cursor: pointer;
  background: rgba(88, 166, 255, 0.02);
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
}

.pt-card-hdr:hover {
  background: rgba(88, 166, 255, 0.04);
}

.pt-card-hdr .pt-name {
  display: flex;
  align-items: center;
  gap: 6px;
}

.pt-card-hdr .badge {
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 8px;
  font-weight: 500;
}

.badge-residential {
  background: rgba(88, 166, 255, 0.12);
  color: var(--accent);
}

.badge-commercial {
  background: rgba(163, 113, 247, 0.12);
  color: var(--purple);
}

.badge-office {
  background: rgba(63, 185, 80, 0.12);
  color: var(--green);
}

.badge-industrial {
  background: rgba(210, 153, 29, 0.12);
  color: var(--amber);
}

.badge-other {
  background: rgba(139, 148, 158, 0.12);
  color: var(--text2);
}

.pt-card-hdr .actions {
  display: flex;
  gap: 4px;
}

.pt-card-hdr .actions button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text2);
  cursor: pointer;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 3px;
}

.pt-card-hdr .actions button:hover {
  color: var(--red);
  border-color: var(--red);
}

.pt-card-body {
  padding: 8px 10px;
  display: none;
  border-top: 1px solid var(--border);
}

.pt-card.open .pt-card-body {
  display: block;
}

.pt-card-hdr .arrow {
  font-size: 9px;
  color: var(--text2);
  transition: transform .2s;
}

.pt-card.open .pt-card-hdr .arrow {
  transform: rotate(90deg);
}

/* ===== Sub-title ===== */
.sub-ttl {
  font-size: 10px;
  font-weight: 600;
  color: var(--text);
  margin: 6px 0 4px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--border);
}

/* ===== KPI Cards ===== */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
}

.kpi {
  background: var(--surface);
  border-radius: 7px;
  padding: 12px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.kpi::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
}

.kpi.blue::before {
  background: var(--accent);
}

.kpi.green::before {
  background: var(--green);
}

.kpi.amber::before {
  background: var(--amber);
}

.kpi.red::before {
  background: var(--red);
}

.kpi.purple::before {
  background: var(--purple);
}

.kpi .lbl {
  font-size: 10px;
  color: var(--text2);
  margin-bottom: 3px;
}

.kpi .val {
  font-size: 17px;
  font-weight: 700;
  color: #f0f6fc;
}

.kpi .sub {
  font-size: 9px;
  color: var(--text2);
  margin-top: 1px;
}

.kpi-row-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.kpi .val.sm {
  font-size: 14px;
}

/* ===== Charts ===== */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.chart-box {
  background: var(--surface);
  border-radius: 7px;
  padding: 12px;
  border: 1px solid var(--border);
}

.chart-box h3 {
  font-size: 11px;
  color: var(--text);
  margin-bottom: 6px;
  font-weight: 600;
}

.chart-wrap {
  position: relative;
}

.chart-wrap canvas {
  max-height: 260px;
}

/* ===== Tables ===== */
.tbl-box {
  background: var(--surface);
  border-radius: 7px;
  padding: 12px;
  border: 1px solid var(--border);
}

.tbl-box h3 {
  font-size: 11px;
  color: var(--text);
  margin-bottom: 6px;
  font-weight: 600;
}

.tbl {
  width: 100%;
  font-size: 10px;
  border-collapse: collapse;
}

.tbl th {
  text-align: left;
  padding: 5px 8px;
  background: var(--surface2);
  color: var(--text2);
  font-size: 9px;
  font-weight: 600;
  white-space: nowrap;
}

.tbl td {
  padding: 5px 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.tbl td.num {
  text-align: right;
  font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
}

.tbl tr.total td {
  font-weight: 700;
  color: var(--accent);
  border-top: 2px solid var(--accent);
  background: rgba(88, 166, 255, 0.04);
  font-size: 11px;
}

.tbl.compact td,
.tbl.compact th {
  padding: 4px 6px;
  font-size: 9px;
}

/* ===== Calculation Steps ===== */
.step {
  background: var(--surface2);
  border-radius: 5px;
  padding: 8px 12px;
  margin-bottom: 4px;
  font-size: 10px;
  color: var(--text2);
  cursor: pointer;
}

.step .st {
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
}

.step .sd {
  display: none;
  margin-top: 6px;
  line-height: 1.7;
  font-family: 'SF Mono', 'Consolas', monospace;
  font-size: 9px;
}

.step.open .sd {
  display: block;
}

/* ===== Validation Messages ===== */
.vmsg {
  font-size: 12px;
  line-height: 1.55;
  padding: 6px 8px;
  border-radius: 5px;
  margin-top: 4px;
}

.vmsg.ok {
  background: rgba(63, 185, 80, 0.06);
  color: var(--green);
}

.vmsg.warn {
  background: rgba(210, 153, 29, 0.06);
  color: var(--amber);
}

.vmsg.err {
  background: rgba(248, 81, 73, 0.06);
  color: var(--red);
}

.validation-box {
  margin-bottom: 8px;
}

.validation-box .vmsg {
  margin-bottom: 3px;
  display: block;
}

.validation-blocked-msg {
  padding: 24px;
  text-align: center;
  font-size: 14px;
  color: var(--red);
  background: rgba(248, 81, 73, 0.08);
  border: 1px solid var(--red);
  border-radius: 6px;
}

/* ===== Buttons ===== */
.btn-sm {
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 10px;
  font-family: inherit;
  background: transparent;
  color: var(--accent);
}

.btn-sm:hover {
  background: rgba(88, 166, 255, 0.08);
}

.btn-sm.danger {
  color: var(--red);
}

.btn-sm.danger:hover {
  background: rgba(248, 81, 73, 0.08);
}

.btn-add {
  display: block;
  width: 100%;
  padding: 6px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 4px;
  cursor: pointer;
  font-size: 10px;
  color: var(--text2);
  background: transparent;
  font-family: inherit;
  margin-top: 6px;
}

.btn-add:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(88, 166, 255, 0.03);
}

/* ===== Metadata ===== */
.meta-row {
  font-size: 10px;
  color: var(--text2);
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 6px;
}

.meta-row strong {
  color: var(--text);
}

.textarea-m {
  width: 100%;
  min-height: 56px;
  padding: 6px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 10px;
  font-family: inherit;
  resize: vertical;
}

.textarea-m:focus {
  outline: none;
  border-color: var(--accent);
}

.assumption-list {
  font-size: 10px;
  color: var(--text2);
  line-height: 1.65;
  padding: 8px;
  background: var(--surface2);
  border-radius: 6px;
  border: 1px solid var(--border);
  white-space: pre-wrap;
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .sidebar {
    width: 380px;
    min-width: 380px;
  }
  .charts-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 800px) {
  .main-wrap {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    min-width: 100%;
    max-height: 40vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}