/* TopCopilot Admin — shared design system (platform + update) */
:root {
  --bg: #f0f4f8;
  --bg-login: linear-gradient(165deg, #f0f4f8 0%, #e8eef5 48%, #f5f7fa 100%);
  --surface: #ffffff;
  --text: #1a1d21;
  --text-secondary: #6b7280;
  --text-title: #1d1d1f;
  --border: #e2e8f0;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --accent-soft: rgba(0, 113, 227, 0.08);
  --danger: #d70015;
  --danger-hover: #bf0012;
  --success: #248a3d;
  --warn: #bf4800;
  --revenue: #248a3d;
  --consumption: #bf4800;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(16, 24, 40, 0.06);
  --shadow-card: 0 4px 24px rgba(16, 24, 40, 0.08), 0 0 0 1px rgba(16, 24, 40, 0.04);
  --sidebar-w: 240px;
  --focus-ring: 0 0 0 3px rgba(0, 113, 227, 0.15);
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --font: "Segoe UI Variable", "Segoe UI", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

[hidden] { display: none !important; }

/* —— Login —— */
.view--login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: var(--bg-login);
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 28px 24px 24px;
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
}

.login-card.card--narrow { max-width: 400px; }

.brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 0 4px;
}

.brand-logo {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.brand-title {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-title);
}

.login-lede {
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--text-secondary);
  text-align: center;
}

/* —— Typography —— */
h1 { margin: 0 0 8px; font-size: 22px; font-weight: 600; color: var(--text-title); }
h2 { margin: 0; font-size: 18px; font-weight: 600; color: var(--text-title); }
h3 { margin: 0 0 8px; font-size: 15px; font-weight: 600; }

.lede { margin: 0 0 16px; color: var(--text-secondary); font-size: 13px; }
.page-lede { margin: 4px 0 0; font-size: 13px; color: var(--text-secondary); }

.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
  margin-bottom: var(--space-md);
}

.card--narrow { width: 100%; max-width: 400px; }
.card--compact { padding: 12px 16px; }

/* —— Forms —— */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field--full { grid-column: 1 / -1; }
.field-label { font-size: 12px; color: var(--text-secondary); font-weight: 500; }

.input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}
.input--select { cursor: pointer; }
.input--readonly { background: #f5f5f7; color: var(--text-secondary); }
.input--compact { padding: 5px 8px; font-size: 12px; }

/* —— Buttons —— */
.btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); border-color: var(--danger-hover); color: #fff; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--accent); }
.btn-ghost:hover { background: var(--accent-soft); border-color: transparent; color: var(--accent); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.field-error { color: var(--danger); font-size: 13px; margin: 0 0 12px; }

/* —— App shell —— */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: var(--space-md) 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 var(--space-md) var(--space-md);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-sm);
}
.sidebar-brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  flex-shrink: 0;
}
.sidebar-brand-text h1 { font-size: 15px; margin: 0; line-height: 1.2; }
.sidebar-brand-text p { margin: 2px 0 0; font-size: 11px; color: var(--text-secondary); }

.sidebar-nav { flex: 1; overflow-y: auto; padding: 0 var(--space-sm); }
.sidebar-nav-group { margin-bottom: var(--space-md); }
.sidebar-nav-label {
  display: block;
  padding: 4px 12px 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: none;
  text-align: left;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.nav-item svg { flex-shrink: 0; opacity: 0.7; }
.nav-item:hover { background: var(--accent-soft); color: var(--accent); }
.nav-item:hover svg { opacity: 1; }
.nav-item.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.nav-item.is-active svg { opacity: 1; }

.sidebar-footer {
  margin-top: auto;
  padding: var(--space-md);
  border-top: 1px solid var(--border);
}
.sidebar-user-card {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.sidebar-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
}
.sidebar-user-info { min-width: 0; flex: 1; }
.sidebar-user-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-user-role { font-size: 11px; color: var(--text-secondary); }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar-head { min-width: 0; }
.topbar-crumb {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0 0 4px;
}
.topbar-crumb-sep { margin: 0 4px; opacity: 0.5; }
.topbar-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; align-items: center; flex-shrink: 0; }

.content { flex: 1; padding: var(--space-lg); padding-bottom: 40px; overflow: auto; }

.screen[hidden] { display: none !important; }

/* —— Toolbar & date range —— */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: flex-end;
  margin-bottom: var(--space-md);
}
.toolbar .input { max-width: 220px; margin: 0; }
.toolbar--drawer { margin-bottom: var(--space-sm); }
.toolbar-field { display: flex; flex-direction: column; gap: 4px; }
.toolbar-field-label { font-size: 11px; color: var(--text-secondary); font-weight: 500; }
.input--date { min-width: 148px; max-width: 148px; }

.date-range { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-sm); }
.date-range-picker { position: relative; }
.date-range-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font: inherit;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.date-range-trigger:hover,
.date-range-trigger[aria-expanded="true"] {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}
.date-range-trigger-prefix { color: var(--text-secondary); font-weight: 500; }
.date-range-trigger-value { font-weight: 600; }
.date-range-trigger-chevron { font-size: 10px; color: var(--text-secondary); margin-left: 2px; }
.date-range-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 30;
  min-width: 100%;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}
.date-range-menu.is-hidden { display: none; }
.date-range-menu-item {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: 0;
  background: transparent;
  text-align: left;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
}
.date-range-menu-item:hover { background: #f5f5f7; }
.date-range-menu-item.is-active { color: var(--accent); font-weight: 600; }
.date-range-custom { display: flex; flex-wrap: wrap; gap: var(--space-sm); align-items: flex-end; }
.date-range-custom.is-hidden { display: none; }

/* —— KPI —— */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.kpi-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px 16px 16px 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.kpi-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: 3px 0 0 3px;
}
.kpi-card--success::before { background: var(--success); }
.kpi-card--warn::before { background: var(--warn); }
.kpi-card--revenue::before { background: var(--revenue); }
.kpi-card--consumption::before { background: var(--consumption); }
.kpi-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.kpi-value { font-size: 26px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; }
.kpi-value--money { font-size: 22px; }
.kpi-sub { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

.dashboard-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}
.dashboard-toolbar h3 { margin: 0; }

/* —— Charts —— */
.chart-card { margin-bottom: var(--space-md); }
.chart-card h3 { margin-bottom: 12px; }

.bar-chart { display: flex; flex-direction: column; gap: 10px; }
.bar-chart-row {
  display: grid;
  grid-template-columns: minmax(80px, 120px) 1fr minmax(48px, 64px);
  gap: 10px;
  align-items: center;
  font-size: 13px;
}
.bar-chart-label { color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-chart-track {
  height: 8px;
  background: #eef2f6;
  border-radius: 4px;
  overflow: hidden;
}
.bar-chart-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  min-width: 2px;
  transition: width 0.3s ease;
}
.bar-chart-value { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }

.trend-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 120px;
  padding-top: 8px;
}
.trend-bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 0;
}
.trend-bar {
  width: 100%;
  max-width: 36px;
  background: var(--accent);
  border-radius: 4px 4px 0 0;
  min-height: 2px;
  transition: height 0.3s ease;
}
.trend-bar--revenue { background: var(--revenue); }
.trend-label {
  font-size: 10px;
  color: var(--text-secondary);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.trend-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}
.trend-tab {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
.trend-tab.is-active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.dashboard-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}
@media (max-width: 900px) {
  .dashboard-grid-2 { grid-template-columns: 1fr; }
}

/* —— Tables —— */
.table-wrap {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: auto;
}
table.data-table,
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data-table th,
table.data-table td,
.table-wrap th,
.table-wrap td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid #eee;
  vertical-align: middle;
}
table.data-table th,
.table-wrap th {
  position: sticky;
  top: 0;
  background: #fafbfc;
  font-weight: 600;
  white-space: nowrap;
  z-index: 1;
}
table.data-table tr:last-child td,
.table-wrap tr:last-child td { border-bottom: none; }
table.data-table tr:hover td,
.table-wrap tr:hover td { background: #fafbff; }
td.mono, .mono { font-family: ui-monospace, "Cascadia Code", monospace; font-size: 12px; }
.col-num { text-align: right; font-variant-numeric: tabular-nums; }

.cell-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
}
.cell-copy-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.btn-copy {
  flex-shrink: 0;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
}
.btn-copy:hover { border-color: var(--accent); color: var(--accent); }

/* —— Badges —— */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}
.badge--default { background: #eee; color: #555; }
.badge--success { background: #e8f5eb; color: var(--success); }
.badge--danger { background: #fdecee; color: var(--danger); }
.badge--warn { background: #fff4e5; color: var(--warn); }

.empty,
.empty-state {
  text-align: center;
  padding: 40px 24px;
  color: var(--text-secondary);
}
.empty-state-icon {
  font-size: 32px;
  margin-bottom: 8px;
  opacity: 0.4;
}
.empty-state-title { font-size: 14px; font-weight: 500; color: var(--text); margin: 0 0 4px; }
.empty-state-desc { font-size: 13px; margin: 0; }

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* —— Drawer & tabs —— */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 100;
  animation: admin-fade-in 0.2s ease;
}
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(520px, 100vw);
  height: 100vh;
  background: var(--surface);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
  z-index: 101;
  display: flex;
  flex-direction: column;
  animation: admin-slide-in 0.25s ease;
}
@keyframes admin-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes admin-slide-in { from { transform: translateX(100%); } to { transform: translateX(0); } }

.drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.drawer-body { flex: 1; overflow: auto; padding: 16px 20px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tab {
  padding: 8px 14px;
  border: none;
  background: none;
  font: inherit;
  cursor: pointer;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* —— Form sections —— */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.form-section {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.form-section:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.form-section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-title);
  margin: 0 0 4px;
}
.form-section-desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0 0 12px;
}

/* —— LLM cards —— */
.llm-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}
.llm-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  border: 1px solid transparent;
  transition: border-color 0.15s;
}
.llm-card.is-active { border-color: rgba(36, 138, 61, 0.35); }
.llm-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}
.llm-card-title { font-size: 15px; font-weight: 600; margin: 0; }
.llm-card-meta { font-size: 12px; color: var(--text-secondary); margin: 4px 0 0; }
.llm-card-body { font-size: 12px; color: var(--text-secondary); margin-bottom: 12px; }
.llm-card-body .mono { display: block; margin-top: 2px; color: var(--text); }
.llm-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

/* —— Plans —— */
.plan-section { margin-bottom: var(--space-lg); }
.plan-section-header { margin-bottom: 12px; }
.plan-section-title { font-size: 16px; font-weight: 600; margin: 0 0 4px; }
.plan-section-desc { font-size: 13px; color: var(--text-secondary); margin: 0; }
.plan-rules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: 12px;
}
.plan-table-wrap { margin-bottom: 10px; }
.plan-table th, .plan-table td { padding: 6px 8px; }
.plan-table th { font-size: 12px; }
.plan-table .input--compact { min-width: 0; width: 100%; }
.plan-table td:nth-child(2) .input--compact { min-width: 88px; }
.plan-table td:nth-child(3) .input--compact,
.plan-table td:nth-child(4) .input--compact,
.plan-table td:nth-child(6) .input--compact,
.plan-table td:nth-child(7) .input--compact,
.plan-table td:nth-child(8) .input--compact,
.plan-table td:nth-child(9) .input--compact { width: 72px; max-width: 88px; }
.plan-table td:nth-child(5) .input--compact { width: 52px; }
.plan-table__actions { width: 1%; white-space: nowrap; text-align: right; }
.plan-rules-card { margin-top: 0; }

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

/* —— Toast & modal —— */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px;
  border-radius: 999px;
  background: #333;
  color: #fff;
  font-size: 13px;
  z-index: 200;
  box-shadow: var(--shadow);
}
.toast--success { background: var(--success); }
.toast--error { background: var(--danger); }
.toast--warn { background: var(--warn); }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 150;
  padding: 24px;
}
.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px 24px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
}
.modal--wide,
.modal:has(.llm-form) { max-width: 720px; }
.modal-title { margin: 0 0 8px; font-size: 17px; }
.modal-body { margin: 0 0 12px; color: var(--text-secondary); font-size: 13px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

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

@media (max-width: 768px) {
  .app-shell { flex-direction: column; }
  .sidebar { width: 100%; max-height: none; }
  .sidebar-nav { display: flex; flex-wrap: wrap; gap: 4px; }
  .sidebar-nav-group { display: contents; }
  .sidebar-nav-label { display: none; }
  .nav-item { width: auto; }
  .form-grid { grid-template-columns: 1fr; }
  .plan-rules-grid { grid-template-columns: 1fr; }
}