/* 房间余额监控 - 浅色主题 */

:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-hover: #f0f3fa;
  --border: #e3e7ef;
  --text: #1f2430;
  --text-secondary: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --green: #059669;
  --red: #dc2626;
  --orange: #d97706;
  --purple: #7c3aed;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --radius: 8px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.header h1 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.last-update {
  font-size: 13px;
  color: var(--text-secondary);
}

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Summary Cards */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
}

.summary-card .label {
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
  margin-bottom: 6px;
}

.summary-card .value {
  font-size: 24px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.summary-card .delta {
  font-size: 13px;
  margin-top: 4px;
}

.delta.positive { color: var(--green); }
.delta.negative { color: var(--red); }
.delta.zero { color: var(--text-secondary); }

/* Controls */
.controls {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-bottom: 24px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  flex-wrap: wrap;
  box-shadow: var(--shadow);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-group label {
  font-size: 13px;
  color: var(--text-secondary);
}

input[type="date"],
select {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
}

input[type="date"]:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.hint {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Toggle Switch */
.toggle {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
  cursor: pointer;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: #cbd5e1;
  border-radius: 22px;
  transition: 0.3s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: 0.3s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.toggle input:checked + .toggle-slider {
  background: var(--accent);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(18px);
}

/* Charts */
.charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.chart-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  position: relative;
}

.btn-fullscreen {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  height: 28px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
  z-index: 2;
}

.btn-fullscreen:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.chart-container.is-zoomed {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  background: var(--surface);
  border: none;
  border-radius: 0;
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
  box-shadow: none;
}

.chart-container.is-zoomed h3 {
  font-size: 18px;
  margin-bottom: 16px;
  flex: 0 0 auto;
}

.chart-container.is-zoomed canvas {
  flex: 1 1 auto;
  width: 100% !important;
  height: 100% !important;
  min-height: 0;
}

.chart-container.is-zoomed .btn-fullscreen {
  top: 20px;
  right: 24px;
  width: 36px;
  height: 36px;
  font-size: 18px;
}

body.zoomed {
  overflow: hidden;
}

.chart-container h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.chart-container.full-width {
  grid-column: 1 / -1;
}

/* Data Table */
.detail-section {
  margin-bottom: 24px;
}

.detail-section h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 13px;
  box-shadow: var(--shadow);
}

.data-table thead {
  background: #f8fafc;
}

.data-table th {
  padding: 10px 12px;
  text-align: right;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table th:first-child {
  text-align: left;
}

.data-table td {
  padding: 10px 12px;
  text-align: right;
  border-bottom: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.data-table td:first-child {
  text-align: left;
  font-weight: 500;
}

.data-table tbody tr:hover {
  background: var(--surface-hover);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.td-positive { color: var(--green); }
.td-negative { color: var(--red); }
.td-zero { color: var(--text-secondary); }

/* Responsive */
@media (max-width: 768px) {
  .charts {
    grid-template-columns: 1fr;
  }
  .chart-container.full-width {
    grid-column: 1;
  }
  .header {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
  .controls {
    flex-direction: column;
    align-items: flex-start;
  }
  .data-table {
    font-size: 12px;
  }
  .data-table th,
  .data-table td {
    padding: 6px 8px;
  }
}