:root {
  --brand: #0d7377;
  --brand-dark: #095456;
  --brand-light: #14919b;
  --accent: #e8a838;
  --accent-soft: #fff4de;
  --bg: #f3f6f7;
  --surface: #ffffff;
  --text: #1c2b2e;
  --text-secondary: #5a6b6e;
  --border: #d9e3e5;
  --success: #1f8a5f;
  --warning: #c9891a;
  --danger: #c44536;
  --info: #2a6f97;
  --shadow: 0 8px 24px rgba(13, 115, 119, 0.08);
  --radius: 12px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html, body {
  height: 100%;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  cursor: pointer;
  transition: 0.2s ease;
  white-space: nowrap;
}

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

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

.btn-secondary {
  background: #e8f2f3;
  color: var(--brand-dark);
}

.btn-danger {
  background: #fdecea;
  color: var(--danger);
}

.btn-sm {
  padding: 6px 10px;
  font-size: 13px;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  line-height: 1.6;
}

.badge-success { background: #e7f7ef; color: var(--success); }
.badge-warning { background: #fff5e6; color: var(--warning); }
.badge-danger { background: #fdecea; color: var(--danger); }
.badge-info { background: #e8f3fa; color: var(--info); }
.badge-muted { background: #eef2f3; color: var(--text-secondary); }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full {
  grid-column: 1 / -1;
}

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

.form-group input,
.form-group select,
.form-group textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--brand-light);
  box-shadow: 0 0 0 3px rgba(20, 145, 155, 0.15);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
}

.toolbar .search {
  flex: 1;
  min-width: 180px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
}

.table-wrap {
  overflow: auto;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

table.data-table th,
table.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

table.data-table th {
  background: #f7fbfb;
  color: var(--text-secondary);
  font-weight: 600;
  white-space: nowrap;
}

table.data-table tr:hover td {
  background: #f9fcfc;
}

.empty-tip {
  text-align: center;
  color: var(--text-secondary);
  padding: 40px 16px;
}

.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(18, 36, 40, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}

.modal-mask.show {
  display: flex;
}

.modal {
  width: min(640px, 100%);
  max-height: 90vh;
  overflow: auto;
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 20px 18px;
  border-top: 1px solid var(--border);
}

.modal-close {
  border: none;
  background: transparent;
  font-size: 22px;
  cursor: pointer;
  color: var(--text-secondary);
  line-height: 1;
}

.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: #16393c;
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: 0.25s ease;
  z-index: 2000;
  font-size: 14px;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

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

.stat-card .value {
  margin-top: 8px;
  font-size: 28px;
  font-weight: 700;
  color: var(--brand-dark);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.panel h3 {
  margin-bottom: 12px;
  font-size: 16px;
}

.list-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.list-row:last-child {
  border-bottom: none;
}

@media (max-width: 900px) {
  .stat-grid {
    grid-template-columns: 1fr 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}