:root {
  --bg: #0a0f1e;
  --card: #1a2236;
  --card-border: #2d3a52;
  --sidebar-bg: #141b2d;
  --accent: #0d9488;
  --accent-dim: rgba(13, 148, 136, 0.15);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --online: #16a34a;
  --offline: #dc2626;
  --warning: #eab308;
  --radius: 8px;
  --radius-sm: 4px;
}

html[data-theme="light"] {
  --bg: #f5f7fa;
  --card: #ffffff;
  --card-border: #e2e8f0;
  --sidebar-bg: #fafbfc;
  --accent-dim: rgba(13, 148, 136, 0.06);
  --text: #1e293b;
  --text-muted: #64748b;
}

html[data-theme="light"] .app-header {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.95) 100%);
  border-bottom-color: #e2e8f0;
}
html[data-theme="light"] .brand {
  background: linear-gradient(135deg, #0f766e 0%, var(--accent) 50%, #134e4a 100%);
  -webkit-background-clip: text; background-clip: text;
}
html[data-theme="light"] .sidebar-brand .logo-img { filter: invert(1) hue-rotate(180deg); }
html[data-theme="light"] .sidebar {
  background: var(--sidebar-bg);
  border-right-color: #e2e8f0;
}
html[data-theme="light"] .nav-link.active { color: #0f766e; }
html[data-theme="light"] .data-table th { background: rgba(13, 148, 136, 0.05); }
html[data-theme="light"] .nav-pill { background: #f1f5f9; border-color: #e2e8f0; color: #64748b; }
html[data-theme="light"] .tag-green { color: #16a34a; }
html[data-theme="light"] .tag-yellow { color: #a16207; }
html[data-theme="light"] .tag-red { color: #dc2626; }
html[data-theme="light"] .login-body { background: var(--bg); }
html[data-theme="light"] .stat-card.stat-online {
  background: linear-gradient(135deg, rgba(22, 163, 74, 0.06) 0%, rgba(22, 163, 74, 0.02) 100%);
}
html[data-theme="light"] .stat-card.stat-offline {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.06) 0%, rgba(220, 38, 38, 0.02) 100%);
}
html[data-theme="light"] .stat-card.stat-suspended {
  background: linear-gradient(135deg, rgba(234, 179, 8, 0.06) 0%, rgba(234, 179, 8, 0.02) 100%);
}
html[data-theme="light"] .stat-card.stat-online .stat-value { color: #16a34a; }
html[data-theme="light"] .stat-card.stat-offline .stat-value { color: #dc2626; }
html[data-theme="light"] .stat-card.stat-suspended .stat-value { color: #a16207; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background 0.35s ease, color 0.35s ease;
}

/* ── App Shell (grid layout matching review-ui) ────────────────── */

.app-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────────────── */

.sidebar {
  grid-row: 1 / -1;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--card-border);
  display: flex; flex-direction: column;
  padding: 0;
  transition: background 0.35s, border-color 0.35s, width 0.25s ease;
  position: sticky; top: 0; height: 100vh;
  overflow-y: auto; overflow-x: hidden;
  z-index: 110;
  width: 240px;
}

.sidebar-brand {
  display: flex; align-items: center; justify-content: center; gap: 0.6rem;
  padding: 1.1rem 0.75rem;
  border-bottom: 1px solid var(--card-border);
}

.sidebar-brand .logo-img { height: 88px; width: 88px; max-height: 88px; }

.brand-stack { display: flex; flex-direction: column; align-items: center; gap: 0.2rem; }
.brand-icon { width: 22px; height: 22px; }
.sidebar-brand .brand { font-size: 1.1rem; }
.brand-sub {
  font-size: 0.65rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.08em; font-weight: 500;
}

.logo-img { object-fit: contain; transition: filter 0.3s; }

.brand {
  font-family: "Orbitron", sans-serif; font-weight: 700; font-size: 1.1rem;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, #2dd4bf 0%, var(--accent) 50%, #0f766e 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  text-decoration: none; transition: opacity 0.2s;
}
.brand:hover { opacity: 0.9; }

.sidebar-nav {
  flex: 1; display: flex; flex-direction: column;
  padding: 0.75rem 0.65rem; gap: 0.2rem;
}

.nav-group-label {
  font-size: 0.65rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--text-muted);
  padding: 0.75rem 0.85rem 0.25rem; opacity: 0.7;
  transition: opacity 0.25s;
}

.nav-link {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem; font-weight: 500;
  transition: background 0.15s, color 0.15s;
}
.nav-link svg { width: 20px; height: 20px; flex-shrink: 0; }
.nav-link:hover { background: var(--accent-dim); color: var(--text); }
.nav-link.active { background: var(--accent-dim); color: var(--accent); font-weight: 600; }

.sidebar-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--card-border);
  margin-top: auto;
}
.sidebar-status { display: flex; align-items: center; gap: 0.5rem; }
.sidebar-status-text { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.sidebar-user { font-weight: 500; font-size: 0.75rem; color: var(--text-muted); }

.sidebar-toggle {
  display: none;
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; padding: 0.25rem;
}
.sidebar-toggle svg { width: 22px; height: 22px; }
.sidebar-toggle:hover { color: var(--accent); }

/* ── Collapsible sidebar (desktop) ─────────────────────────────── */

.sidebar-collapse-btn {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; padding: 0.4rem; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  transition: color 0.2s, background 0.2s;
}
.sidebar-collapse-btn:hover { color: var(--accent); background: var(--accent-dim); }
.sidebar-collapse-btn svg { width: 18px; height: 18px; }

.app-shell.sidebar-collapsed { grid-template-columns: 64px 1fr; }
.sidebar.collapsed { width: 64px; }
.sidebar.collapsed .sidebar-brand .brand,
.sidebar.collapsed .sidebar-brand .brand-stack,
.sidebar.collapsed .sidebar-status-text,
.sidebar.collapsed .brand-sub,
.sidebar.collapsed .nav-group-label { opacity: 0; width: 0; overflow: hidden; white-space: nowrap; }
.sidebar.collapsed .sidebar-brand { justify-content: center; padding: 0.8rem 0.5rem; }
.sidebar.collapsed .sidebar-brand .logo-img { width: 32px; height: 32px; max-height: 32px; }
.sidebar.collapsed .nav-link { justify-content: center; padding: 0.65rem; }
.sidebar.collapsed .nav-link span { display: none; }
.sidebar.collapsed .sidebar-footer { justify-content: center; padding: 0.85rem 0.5rem; }
.sidebar.collapsed .sidebar-collapse-btn svg { transform: rotate(180deg); }
.sidebar.collapsed .sidebar-user { display: none; }

.sidebar.collapsed .nav-link { position: relative; }
.sidebar.collapsed .nav-link::after {
  content: attr(data-label);
  position: absolute; left: 100%; top: 50%; transform: translateY(-50%);
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text); padding: 0.3rem 0.6rem; border-radius: 6px;
  font-size: 0.75rem; white-space: nowrap; pointer-events: none;
  opacity: 0; transition: opacity 0.15s; margin-left: 8px; z-index: 200;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
.sidebar.collapsed .nav-link:hover::after { opacity: 1; }

/* ── App Header ────────────────────────────────────────────────── */

.app-header {
  grid-column: 2;
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(180deg, rgba(10, 15, 30, 0.98) 0%, rgba(10, 15, 30, 0.92) 100%);
  border-bottom: 1px solid var(--card-border);
  backdrop-filter: blur(8px);
  transition: background 0.35s ease, border-color 0.35s ease;
}
.header-inner {
  padding: 0.65rem 1.25rem;
  display: flex; align-items: center; gap: 1rem;
  justify-content: space-between;
}
.header-right { display: flex; align-items: center; gap: 0.75rem; margin-left: auto; }
.header-user { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }
.header-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--accent); color: #042f2e;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; flex-shrink: 0;
}
.header-logout {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.35rem 0.65rem; border-radius: 6px;
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text-muted); font-family: inherit; font-size: 0.75rem;
  font-weight: 500; cursor: pointer; text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}
.header-logout:hover { border-color: var(--accent); color: var(--accent); }

/* ── Theme Toggle ──────────────────────────────────────────────── */

.theme-toggle {
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text-muted); width: 34px; height: 34px; border-radius: 50%;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: border-color 0.2s, color 0.2s; flex-shrink: 0; padding: 0;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle svg { width: 17px; height: 17px; }
html[data-theme="dark"] .theme-toggle .icon-moon,
html:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun,
html:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
html[data-theme="light"] .theme-toggle .icon-sun { display: none; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ── Nav Pill (breadcrumb) ─────────────────────────────────────── */

.nav-pill {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 0.75rem; border-radius: 999px;
  background: var(--card); border: 1px solid var(--card-border);
  font-size: 0.75rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.nav-pill strong { color: var(--accent); font-weight: 600; }

/* ── Main Content ──────────────────────────────────────────────── */

main {
  grid-column: 2;
  max-width: 1280px;
  padding: 1.5rem 1.5rem 3rem;
  width: 100%;
}

.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--card-border);
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

/* ── Animations ────────────────────────────────────────────────── */

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.content-area > * {
  opacity: 0;
  animation: fadeSlideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.content-area > *:nth-child(1) { animation-delay: 0.04s; }
.content-area > *:nth-child(2) { animation-delay: 0.08s; }
.content-area > *:nth-child(3) { animation-delay: 0.12s; }
.content-area > *:nth-child(4) { animation-delay: 0.16s; }
.content-area > *:nth-child(5) { animation-delay: 0.20s; }
.content-area > *:nth-child(n+6) { animation-delay: 0.24s; }

/* ── Pending approvals banner ─────────────────────────────────── */

.alert-banner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.alert-pending {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #f59e0b;
}
.alert-pending .pending-link {
  color: #fbbf24;
  text-decoration: underline;
}
.stat-card.stat-pending {
  border-color: rgba(245, 158, 11, 0.4);
}
.stat-card.stat-pending .stat-value { color: #f59e0b; }

/* ── Fleet Stats Cards ─────────────────────────────────────────── */

.fleet-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.25rem;
  text-align: center;
  transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.stat-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(13, 148, 136, 0.12), 0 0 0 1px rgba(13, 148, 136, 0.2);
  transform: translateY(-4px);
}

.stat-card.stat-online {
  border-left: 3px solid var(--online);
  background: linear-gradient(135deg, rgba(22, 163, 74, 0.08) 0%, rgba(22, 163, 74, 0.03) 100%);
}
.stat-card.stat-offline {
  border-left: 3px solid var(--offline);
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.08) 0%, rgba(220, 38, 38, 0.03) 100%);
}
.stat-card.stat-suspended {
  border-left: 3px solid var(--warning);
  background: linear-gradient(135deg, rgba(234, 179, 8, 0.08) 0%, rgba(234, 179, 8, 0.03) 100%);
}
.stat-card.stat-online .stat-value { color: var(--online); }
.stat-card.stat-offline .stat-value { color: var(--offline); }
.stat-card.stat-suspended .stat-value { color: var(--warning); }

.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 0.25rem;
}

/* ── Data Table ────────────────────────────────────────────────── */

.fleet-table-wrapper {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 14px; overflow: hidden; overflow-x: auto;
  transition: background 0.35s, border-color 0.35s;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th {
  text-align: left;
  padding: 0.85rem 1rem;
  background: rgba(13, 148, 136, 0.08);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--card-border);
}
th.sortable { cursor: pointer; user-select: none; position: relative; }
th.sortable:hover { color: var(--accent); }
th.sortable .sort-arrow::after { content: "⇅"; margin-left: 4px; opacity: 0.4; font-size: 0.65rem; }
th.sortable.sort-asc .sort-arrow::after { content: "↑"; opacity: 1; }
th.sortable.sort-desc .sort-arrow::after { content: "↓"; opacity: 1; }

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--card-border);
  vertical-align: middle;
}

.data-table tbody tr { transition: background 0.15s; }
.data-table tbody tr:hover { background: var(--accent-dim); }
.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr {
  opacity: 0;
  animation: fadeSlideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.data-table tbody tr:nth-child(1) { animation-delay: 0.03s; }
.data-table tbody tr:nth-child(2) { animation-delay: 0.06s; }
.data-table tbody tr:nth-child(3) { animation-delay: 0.09s; }
.data-table tbody tr:nth-child(4) { animation-delay: 0.12s; }
.data-table tbody tr:nth-child(5) { animation-delay: 0.15s; }
.data-table tbody tr:nth-child(6) { animation-delay: 0.18s; }
.data-table tbody tr:nth-child(7) { animation-delay: 0.21s; }
.data-table tbody tr:nth-child(8) { animation-delay: 0.24s; }
.data-table tbody tr:nth-child(n+9) { animation-delay: 0.27s; }

.site-link {
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.site-link:hover strong { color: var(--accent); }

.site-id-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: monospace;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 3rem !important;
  font-size: 0.95rem;
  font-style: italic;
}

/* ── Tags / Pills ──────────────────────────────────────────────── */

.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.tag-green { background: rgba(22, 163, 74, 0.15); color: #4ade80; }
.tag-yellow { background: rgba(234, 179, 8, 0.15); color: #facc15; }
.tag-orange { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }
.tag-red { background: rgba(220, 38, 38, 0.15); color: #f87171; }

/* ── Heartbeat status ──────────────────────────────────────────── */

.hb-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
}

.hb-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-green { background: var(--online); box-shadow: 0 0 4px var(--online); }
.dot-amber { background: var(--warning); box-shadow: 0 0 4px var(--warning); }
.dot-red { background: var(--offline); box-shadow: 0 0 4px var(--offline); }

.hb-ok { color: var(--online); }
.hb-warn { color: var(--warning); }
.hb-critical { color: var(--offline); font-weight: 600; }

.tag .hb-dot { display: inline-block; vertical-align: middle; margin-right: 0.3rem; }

.data-table tbody tr.row-warn {
  background: rgba(234, 179, 8, 0.06);
}
.data-table tbody tr.row-warn td:first-child { border-left: 3px solid var(--warning); }
.data-table tbody tr.row-warn:hover { background: rgba(234, 179, 8, 0.1); }

.data-table tbody tr.row-critical {
  background: rgba(220, 38, 38, 0.06);
}
.data-table tbody tr.row-critical td:first-child { border-left: 3px solid var(--offline); }
.data-table tbody tr.row-critical:hover { background: rgba(220, 38, 38, 0.1); }

.data-table tbody tr.row-healthy td:first-child { border-left: 3px solid var(--online); }

/* ── Buttons ───────────────────────────────────────────────────── */

.btn-sm {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.3rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 6px;
  text-decoration: none;
  border: 1px solid var(--card-border);
  color: var(--text);
  background: transparent;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.15s;
}
.btn-sm:active { transform: scale(0.98); }
.btn-sm:hover { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }

.btn-sm.btn-danger { border-color: rgba(220, 38, 38, 0.4); color: #f87171; }
.btn-sm.btn-danger:hover { background: rgba(220, 38, 38, 0.1); }

.btn-sm.btn-success { border-color: rgba(22, 163, 74, 0.4); color: #4ade80; }
.btn-sm.btn-success:hover { background: rgba(22, 163, 74, 0.1); }

.btn-sm.btn-outline { border-color: var(--card-border); color: var(--text-muted); }
.btn-sm.btn-outline:hover { border-color: var(--offline); color: var(--offline); }

.btn-sm.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-sm.btn-primary:hover { opacity: 0.9; }

.btn-primary {
  display: block;
  width: 100%;
  padding: 0.75rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.9; }

/* ── Back link ─────────────────────────────────────────────────── */

.back-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  color: var(--accent); text-decoration: none;
  font-size: 0.9rem; font-weight: 500;
  margin-bottom: 1.25rem; transition: color 0.2s;
}
.back-link:hover { color: #2dd4bf; }

/* ── Site Detail ───────────────────────────────────────────────── */

.site-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-meta { display: flex; gap: 1.5rem; align-items: center; flex-wrap: wrap; }
.site-id-label { font-size: 0.8rem; color: var(--text-muted); }
.site-id-label code { color: var(--accent); }

.site-name-editable { display: inline-flex; align-items: center; gap: 0.4rem; }
.site-name-editable #site-name-display { font-size: 1.1rem; font-weight: 600; color: var(--text); }
.site-name-input {
  font-size: 1.1rem; font-weight: 600; padding: 0.2rem 0.5rem;
  border: 1px solid var(--accent); border-radius: 6px;
  background: var(--bg-card); color: var(--text);
  outline: none; width: 220px;
}
.btn-icon {
  background: none; border: none; cursor: pointer; color: var(--text-muted);
  padding: 4px; border-radius: 4px; display: inline-flex; align-items: center;
  transition: color 0.2s, background 0.2s;
}
.btn-icon:hover { color: var(--accent); background: var(--bg-sidebar); }
.btn-icon.btn-save { color: var(--accent); }

.site-actions { display: flex; gap: 0.5rem; }
.inline-form { display: inline; }

.detail-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.detail-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.25rem;
  transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.detail-card h3 {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.detail-value { margin-bottom: 0.5rem; }
.detail-sub { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; }
.detail-sub code { color: var(--accent); }

.section { margin-top: 2rem; }

.section-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text);
  display: flex; align-items: center; gap: 0.5rem;
}
.section-title::before {
  content: ""; width: 3px; height: 1.1em;
  background: var(--accent); border-radius: 2px;
}

/* ── Forms ─────────────────────────────────────────────────────── */

.form-group { margin-bottom: 1rem; }

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.form-group input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.form-group input:focus { border-color: var(--accent); }

.form-inline {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.form-inline label { margin-bottom: 0; }
.form-inline input { width: auto; }

.renew-form { margin-top: 1rem; }

/* ── Login ─────────────────────────────────────────────────────── */

.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
  transition: background 0.35s ease;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 380px;
  transition: background 0.35s, border-color 0.35s;
}

.login-brand {
  text-align: center;
  margin-bottom: 2rem;
}

.login-title {
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, #2dd4bf 0%, var(--accent) 50%, #0f766e 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-top: 0.75rem;
}

.login-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.login-error {
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.3);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  color: #f87171;
  font-size: 0.8rem;
  margin-bottom: 1rem;
  text-align: center;
}

.login-form { display: flex; flex-direction: column; gap: 0; }

.login-theme-toggle {
  position: fixed; top: 1rem; right: 1rem;
}

.text-muted { color: var(--text-muted); }

code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.8em;
  background: rgba(13, 148, 136, 0.08);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

/* ── Clickable stat tiles ──────────────────────────────────────── */

.stat-clickable { cursor: pointer; position: relative; }
.stat-clickable.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(13, 148, 136, 0.3), 0 4px 16px rgba(13, 148, 136, 0.12);
}

/* ── Dashboard toolbar ─────────────────────────────────────────── */

.dash-toolbar {
  display: flex; flex-wrap: wrap; gap: 0.6rem;
  align-items: center; margin-bottom: 1rem;
  position: relative; z-index: 50;
}

.dash-search-wrap {
  position: relative; flex: 1; min-width: 200px; max-width: 340px;
}
.dash-search-wrap svg {
  position: absolute; left: 0.7rem; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; color: var(--text-muted); pointer-events: none;
}
.dash-search {
  width: 100%; padding: 0.5rem 0.75rem 0.5rem 2.1rem;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 8px; color: var(--text);
  font-family: inherit; font-size: 0.82rem;
  transition: border-color 0.2s;
}
.dash-search::placeholder { color: var(--text-muted); }
.dash-search:focus { border-color: var(--accent); outline: none; }

.dash-group-select {
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text); padding: 0.5rem 0.75rem;
  border-radius: 8px; font-family: inherit; font-size: 0.82rem;
  cursor: pointer; transition: border-color 0.2s;
}
.dash-group-select:focus { border-color: var(--accent); outline: none; }

/* ── Filter dropdown (matching review-ui audit pattern) ────────── */

.filter-dropdown { position: relative; }

.filter-btn {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.85rem; background: var(--card); border: 1px solid var(--card-border);
  border-radius: 8px; color: var(--text); font-size: 0.82rem; font-weight: 500;
  cursor: pointer; transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}
.filter-btn:hover { border-color: var(--accent); }
.filter-btn svg { flex-shrink: 0; }

.filter-menu {
  display: none; position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 180px; max-height: 260px; overflow-y: auto;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  padding: 0.4rem 0; z-index: 100;
}
.filter-menu.open { display: block; }

.filter-option {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.45rem 0.85rem; cursor: pointer; font-size: 0.8rem;
  transition: background 0.15s;
}
.filter-option:hover { background: var(--accent-dim); }
.filter-option input { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }
.filter-option span { color: var(--text); }

/* ── Group headers ─────────────────────────────────────────────── */

/* ── Grouped view (separate tables per group) ─────────────────── */

.group-section { margin-bottom: 1.25rem; }
.group-section:first-child { margin-top: 0.75rem; }
.group-section .data-table { margin-bottom: 0; border-radius: 8px; overflow: hidden; }

.group-label {
  display: flex; align-items: center; gap: 0.6rem;
  margin-bottom: 0.35rem; padding-left: 0.1rem;
}

.group-name {
  font-weight: 700; font-size: 0.82rem; color: var(--text);
  letter-spacing: 0.01em;
}

.group-count {
  font-size: 0.66rem; color: var(--text-muted);
  background: rgba(13, 148, 136, 0.1); padding: 0.15rem 0.5rem;
  border-radius: 10px; font-weight: 500; white-space: nowrap;
}

/* When grouped, hide the main thead since groups have no headers */
.fleet-table-grouped { table-layout: fixed; }


/* ── Owner link ────────────────────────────────────────────────── */

.owner-link {
  color: var(--text); font-size: 0.85rem;
  transition: color 0.15s;
}
.owner-link:hover { color: var(--accent); text-decoration: underline; }

/* ── Pagination ────────────────────────────────────────────────── */

.pagination {
  display: flex; align-items: center; justify-content: center;
  gap: 0.75rem; padding: 1.25rem 0 0.5rem;
}
.pagination button {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.45rem 0.9rem; border-radius: 8px;
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text); font-family: inherit; font-size: 0.8rem;
  font-weight: 500; cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.pagination button:hover:not(:disabled) { border-color: var(--accent); }
.pagination button:disabled { opacity: 0.4; cursor: default; }
.pagination .page-info { font-size: 0.8rem; color: var(--text-muted); }

/* ── Responsive ────────────────────────────────────────────────── */

@media (max-width: 860px) {
  .app-shell, .app-shell.sidebar-collapsed { grid-template-columns: 1fr; }
  .sidebar, .sidebar.collapsed {
    position: fixed; left: -260px;
    width: 240px; height: 100vh;
    transition: left 0.25s ease;
    box-shadow: none;
  }
  .sidebar.open {
    left: 0;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.35);
  }
  .sidebar.open.collapsed .nav-link span { display: inline; }
  .sidebar.open.collapsed .nav-group-label { opacity: 0.7; width: auto; }
  .sidebar.open.collapsed .sidebar-brand .brand { opacity: 1; width: auto; }
  .sidebar-toggle { display: flex; }
  .sidebar-collapse-btn { display: none; }
  .app-header { grid-column: 1; }
  main { grid-column: 1; padding: 1rem; }
  .fleet-stats { grid-template-columns: repeat(2, 1fr); }
  .detail-cards { grid-template-columns: 1fr; }
  .header-user { display: none; }
  .dash-toolbar { flex-direction: column; align-items: stretch; }
  .dash-search-wrap { max-width: none; }
  .analytics-grid { grid-template-columns: 1fr; }
  .chart-card-wide, .chart-card-full { grid-column: 1; }
}

/* ── Analytics page ──────────────────────────────────────────────── */

.analytics-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.analytics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.25rem;
}
.chart-card-wide { grid-column: span 1; }
.chart-card-full { grid-column: 1 / -1; }

.chart-title {
  margin: 0 0 1rem 0;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.chart-wrap { position: relative; width: 100%; }
.chart-wrap-sm { max-width: 280px; margin: 0 auto; }

html[data-theme="light"] .chart-card { background: #fff; border-color: #e2e8f0; }