:root {
  --bg: #0a0a0c;
  --panel: #121218;
  --card: #15151c;
  --border: #252530;
  --text: #e8e8ec;
  --text-muted: #888;
  --text-dim: #555;
  --accent: #8b5cf6;
  --accent-hover: #a78bfa;
  --danger: #f87171;
  --success: #34d399;
  --sidebar-w: 220px;
  --sidebar-collapsed: 64px;
  --top-h: 56px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

a { color: var(--accent-hover); }

/* ── Login ── */
.login-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(ellipse at 30% 20%, #1a1030 0%, var(--bg) 55%);
}

.login-card {
  width: min(400px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
}

.login-card .logo {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), #ec4899);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}

.login-card .subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 24px;
}

.login-error {
  color: var(--danger);
  font-size: 12px;
  min-height: 18px;
  margin-top: 8px;
}

/* ── Fields & Buttons ── */
.field { margin-bottom: 14px; }

.field label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.field input,
.field select,
.field textarea,
.admin-toolbar input {
  width: 100%;
  background: #0d0d12;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  outline: none;
}

.field input:focus,
.field select:focus,
.field textarea:focus,
.admin-toolbar input:focus {
  border-color: var(--accent);
}

.btn {
  height: 36px;
  padding: 0 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn:hover { border-color: #444; background: #1a1a22; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #a855f7);
  border-color: transparent;
  color: #fff;
}

.btn-primary:hover { opacity: 0.92; }

.btn-sm { height: 30px; padding: 0 10px; font-size: 12px; }

.btn-danger { color: var(--danger); border-color: #3f2020; }

.btn-ghost { background: transparent; }

.btn-block { width: 100%; }

.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.admin-ta {
  width: 100%;
  min-height: 120px;
  background: #0d0d12;
  border: 1px solid var(--border);
  color: #ccc;
  border-radius: 8px;
  padding: 8px;
  font-size: 12px;
  font-family: inherit;
  resize: vertical;
}

/* ── App Shell ── */
.app-shell {
  display: none;
  min-height: 100vh;
}

.app-shell.active { display: flex; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width 0.2s;
  overflow: hidden;
}

.sidebar.collapsed { width: var(--sidebar-collapsed); }

.sidebar-brand {
  padding: 16px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #a855f7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  flex-shrink: 0;
}

.brand-text {
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  flex: 1;
}

.sidebar.collapsed .brand-text { display: none; }

.sidebar-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  flex-shrink: 0;
}

.sidebar-toggle:hover { border-color: #444; color: var(--text); }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 10px 8px;
}

.nav-group { margin-bottom: 12px; }

.nav-group-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 6px 10px;
  white-space: nowrap;
}

.sidebar.collapsed .nav-group-title {
  opacity: 0;
  height: 0;
  padding: 0;
  overflow: hidden;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: #aaa;
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
}

.nav-item:hover { background: #1a1a24; color: #ddd; }

.nav-item.active {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.22), rgba(168, 85, 247, 0.12));
  color: #e9d5ff;
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.nav-icon {
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar.collapsed .nav-item span:last-child { display: none; }

.sidebar-footer {
  padding: 10px;
  border-top: 1px solid var(--border);
}

.sidebar-footer a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  border-radius: 10px;
}

.sidebar-footer a:hover { background: #1a1a24; color: #ddd; }

.sidebar.collapsed .sidebar-footer span:last-child { display: none; }

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

/* ── Topbar ── */
.topbar {
  height: var(--top-h);
  border-bottom: 1px solid var(--border);
  background: rgba(18, 18, 24, 0.92);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  flex-shrink: 0;
  backdrop-filter: blur(8px);
}

.breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.bc-page { color: var(--text); font-weight: 600; }

.bc-sep { margin: 0 6px; color: var(--text-dim); }

.topbar-center {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 auto;
}

.range-filter { display: flex; gap: 4px; flex-wrap: wrap; }

.range-btn {
  height: 30px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
}

.range-btn.active {
  border-color: var(--accent);
  color: #c4b5fd;
  background: rgba(139, 92, 246, 0.12);
}

.topbar-search {
  width: 180px;
  height: 32px;
  background: #0d0d12;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 10px;
  color: #ccc;
  font-size: 12px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-shrink: 0;
}

.admin-menu { position: relative; }

.admin-menu-btn {
  height: 34px;
  padding: 0 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.admin-menu-btn:hover { border-color: #444; }

.admin-menu-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  min-width: 140px;
  z-index: 100;
  padding: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.admin-menu-dropdown.show { display: block; }

.admin-menu-dropdown button,
.admin-menu-dropdown a {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: #ccc;
  font-size: 12px;
  cursor: pointer;
  border-radius: 6px;
  text-decoration: none;
}

.admin-menu-dropdown button:hover,
.admin-menu-dropdown a:hover { background: #1a1a24; }

/* ── Content ── */
.content {
  flex: 1;
  overflow: auto;
  padding: 16px;
}

.loading-spinner {
  text-align: center;
  padding: 48px;
  color: var(--text-muted);
  font-size: 14px;
}

/* ── Cards & KPI ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: #ddd;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  position: relative;
  cursor: default;
  transition: border-color 0.15s;
}

.kpi-card:hover { border-color: #333; }

.kpi-label { font-size: 11px; color: var(--text-muted); }

.kpi-value {
  font-size: 22px;
  font-weight: 700;
  margin-top: 4px;
  color: #f5f5f5;
}

.kpi-delta {
  font-size: 11px;
  margin-top: 6px;
  font-weight: 600;
}

.kpi-delta.up { color: var(--success); }
.kpi-delta.down { color: var(--danger); }
.kpi-delta.neutral { color: #666; }

.kpi-hint {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 11px;
  color: var(--text-dim);
  cursor: help;
}

/* ── Charts ── */
.chart-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

@media (max-width: 1100px) {
  .chart-row { grid-template-columns: 1fr; }
}

.chart-card { margin-bottom: 0; }

.chart-box { width: 100%; height: 280px; }

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

@media (max-width: 1100px) {
  .section-grid { grid-template-columns: 1fr; }
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (max-width: 768px) {
  .plan-grid { grid-template-columns: 1fr; }
}

/* ── Tables ── */
.table-wrap { overflow: auto; max-height: 360px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.data-table th,
.data-table td {
  padding: 9px 8px;
  border-bottom: 1px solid #222;
  text-align: left;
  color: #aaa;
}

.data-table th {
  color: #666;
  font-weight: 600;
  position: sticky;
  top: 0;
  background: var(--card);
}

.data-table td strong { color: #e5e5e5; }

.code-cell {
  font-family: ui-monospace, monospace;
  font-size: 11px;
  word-break: break-all;
}

.admin-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  align-items: center;
}

.admin-toolbar input { width: auto; min-width: 160px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
}

.badge-ok { background: #10b98122; color: var(--success); }
.badge-warn { background: #ef444422; color: var(--danger); }

.token-display {
  font-family: ui-monospace, monospace;
  font-size: 16px;
  padding: 12px 16px;
  background: #0d0d12;
  border: 1px solid var(--border);
  border-radius: 8px;
  letter-spacing: 2px;
}

/* ── Alerts ── */
.alerts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.alert-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  cursor: pointer;
  transition: border-color 0.15s;
  display: flex;
  align-items: center;
  gap: 12px;
}

.alert-card:hover { border-color: var(--accent); }

.alert-count {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  min-width: 36px;
}

.alert-title { font-size: 13px; font-weight: 600; color: #ddd; }

.alert-desc { font-size: 11px; color: var(--text-dim); margin-top: 4px; }

.alert-card.warn { border-left: 3px solid #f59e0b; }
.alert-card.error { border-left: 3px solid #ef4444; }
.alert-card.info { border-left: 3px solid #6366f1; }

/* ── Quick Actions ── */
.quick-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.quick-action-btn {
  height: 32px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: #ccc;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.quick-action-btn:hover {
  border-color: var(--accent);
  color: #e9d5ff;
  background: rgba(139, 92, 246, 0.1);
}

/* ── Stub Pages ── */
.stub-page {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}

.stub-icon { font-size: 48px; margin-bottom: 16px; }

.stub-page h3 { color: var(--text); margin: 0 0 8px; }

.stub-page p { font-size: 13px; max-width: 400px; margin: 0 auto; }

/* ── Confirm Modal ── */
.admin-confirm-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 3000;
  align-items: center;
  justify-content: center;
}

.admin-confirm-overlay.show { display: flex; }

.admin-confirm-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  width: min(380px, 92vw);
}

.admin-confirm-box p {
  color: #ccc;
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 16px;
}

.admin-confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}