/* Helios Playground — design tokens ported from crypto-platform-frontend/src/theme.ts */

:root {
  /* Colors */
  --bg: #0d0d0d;
  --panel: #1a1a1a;
  --panel-2: #252525;
  --border: rgba(255, 255, 255, 0.08);
  --border-soft: rgba(255, 255, 255, 0.05);
  --text: #f3f4f6;
  --muted: #9ca3af;
  --accent: #f97316;
  --accent-light: #fb923c;
  --accent-dark: #ea580c;
  --accent-2: #8b5cf6;
  --error: #ef4444;
  --warning: #f59e0b;
  --info: #06b6d4;
  --success: #10b981;

  /* Tints */
  --hover: rgba(249, 115, 22, 0.06);
  --active: rgba(249, 115, 22, 0.12);

  /* Shape */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;

  /* Shadow */
  --shadow-card: 0 4px 24px 0 rgba(0, 0, 0, 0.2);
  --shadow-side: 4px 0 24px 0 rgba(0, 0, 0, 0.5);

  /* Sidebar */
  --side-w: 280px;
  --side-w-collapsed: 72px;
  --header-h: 76px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; font-weight: 600; letter-spacing: -0.01em; }
h4 { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; }
h5 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }
h6 { font-size: 1.125rem; font-weight: 600; letter-spacing: -0.01em; }

p { margin: 0 0 1em; }
.muted { color: var(--muted); }

/* ---------- App shell layout ---------- */

.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */

.sidebar {
  width: var(--side-w);
  flex: 0 0 var(--side-w);
  background: var(--panel);
  border-right: 1px solid var(--border);
  box-shadow: var(--shadow-side);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: sticky;
  top: 0;
  overflow: hidden;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(249, 115, 22, 0.05) 0%, rgba(249, 115, 22, 0) 100%);
}

.sidebar-header img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.sidebar-header .brand {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
}

.sidebar-nav details {
  margin: 0;
}

.sidebar-nav summary {
  list-style: none;
}
.sidebar-nav summary::-webkit-details-marker { display: none; }

.nav-item {
  display: flex;
  align-items: center;
  padding: 10px 16px 10px 24px;
  margin: 0 0 2px 0;
  color: var(--muted);
  cursor: pointer;
  position: relative;
  font-size: 0.9rem;
  font-weight: 400;
  transition: background-color 0.15s, color 0.15s;
  user-select: none;
}

.nav-item:hover {
  background: var(--hover);
}

.nav-item.active {
  background: var(--active);
  color: var(--accent);
  font-weight: 600;
}

.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20%;
  bottom: 20%;
  width: 4px;
  background: var(--accent);
  border-radius: 0 4px 4px 0;
}

.nav-item .icon {
  font-family: 'Material Symbols Outlined';
  font-size: 22px;
  margin-right: 14px;
  flex: 0 0 22px;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.nav-item .label {
  flex: 1;
}

.nav-item .chev {
  font-family: 'Material Symbols Outlined';
  font-size: 18px;
  color: var(--muted);
  transition: transform 0.2s;
}

details[open] > summary .chev {
  transform: rotate(180deg);
}

.nav-sub {
  padding: 2px 0 4px 0;
}

.nav-sub .nav-item {
  padding-left: 56px;
  font-size: 0.875rem;
}

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding: 8px 0;
}

.sidebar-footer .version {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.65rem;
  color: rgba(156, 163, 175, 0.5);
  letter-spacing: 0.05em;
  padding: 4px 24px;
}

.sidebar-footer .nav-item.logout {
  color: var(--error);
}

.sidebar-footer .nav-item.logout:hover {
  background: rgba(239, 68, 68, 0.08);
}

/* ---------- Main content ---------- */

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.page-header {
  padding: 20px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.5);
}

.page-header h1 {
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}

.page-header .subtitle {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0;
}

.page-content {
  flex: 1;
  padding: 24px;
  overflow: auto;
}

.page-content-inner {
  max-width: 1600px;
  margin: 0 auto;
}

/* ---------- Reusable cards / panels ---------- */

.card {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.tile {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s, transform 0.15s;
  box-shadow: var(--shadow-card);
}
.tile:hover { border-color: var(--accent); transform: translateY(-1px); }
.tile h3 { margin: 0 0 6px; font-size: 1.125rem; }
.tile p { margin: 0; color: var(--muted); font-size: 0.875rem; }
.tile.placeholder { opacity: 0.5; pointer-events: none; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px 0 rgba(249, 115, 22, 0.25);
  background: linear-gradient(135deg, var(--accent-dark) 0%, #c2410c 100%);
}
.btn:active { transform: translateY(0); }
.btn:disabled, .btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn--secondary {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--secondary:hover {
  background: var(--panel);
  border-color: var(--accent);
  box-shadow: none;
  background: var(--panel-2);
}

.btn--ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(249, 115, 22, 0.3);
}
.btn--ghost:hover {
  background: rgba(249, 115, 22, 0.05);
  border-color: var(--accent);
  box-shadow: none;
}

.btn--danger {
  background: linear-gradient(135deg, var(--error) 0%, #dc2626 100%);
}
.btn--danger:hover {
  box-shadow: 0 4px 12px 0 rgba(239, 68, 68, 0.25);
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

.btn--icon {
  padding: 8px;
  width: 36px;
  height: 36px;
}

.btn--sm { padding: 4px 10px; font-size: 0.75rem; height: 28px; }
.btn--lg { padding: 12px 24px; font-size: 1rem; }

/* ---------- Inputs ---------- */

.input, .select, .textarea {
  display: block;
  width: 100%;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 0.875rem;
  transition: border-color 0.15s, background-color 0.15s;
}
.input:hover, .select:hover, .textarea:hover { border-color: rgba(249, 115, 22, 0.3); }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.03);
}
.input::placeholder, .textarea::placeholder { color: var(--muted); opacity: 0.6; }
.textarea { resize: vertical; min-height: 80px; }

.field { display: block; margin-bottom: 16px; }
.field-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 500;
}
.field-help { font-size: 0.75rem; color: var(--muted); margin-top: 4px; }

.field-row { display: flex; gap: 12px; align-items: flex-end; }
.field-row .field { flex: 1; margin-bottom: 0; }

/* Toggle switch */
.toggle { position: relative; display: inline-block; width: 40px; height: 22px; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 22px;
  cursor: pointer;
  transition: background-color 0.2s;
}
.toggle-slider::before {
  content: ""; position: absolute;
  height: 16px; width: 16px;
  left: 2px; top: 2px;
  background: var(--muted);
  border-radius: 50%;
  transition: transform 0.2s, background-color 0.2s;
}
.toggle input:checked + .toggle-slider { background: rgba(249, 115, 22, 0.2); border-color: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); background: var(--accent); }

/* Checkbox */
.check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.check input { accent-color: var(--accent); width: 16px; height: 16px; }
.check span { font-size: 0.875rem; }

/* ---------- Stat card ---------- */

.stat {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
}
.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 8px;
}
.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}
.stat-delta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-top: 6px;
}
.stat-delta.up { color: var(--success); }
.stat-delta.down { color: var(--error); }

/* ---------- Badges / chips ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
}
.badge.success { background: rgba(16, 185, 129, 0.1); color: var(--success); border-color: rgba(16, 185, 129, 0.3); }
.badge.warning { background: rgba(245, 158, 11, 0.1); color: var(--warning); border-color: rgba(245, 158, 11, 0.3); }
.badge.error   { background: rgba(239, 68, 68, 0.1); color: var(--error); border-color: rgba(239, 68, 68, 0.3); }
.badge.info    { background: rgba(6, 182, 212, 0.1); color: var(--info); border-color: rgba(6, 182, 212, 0.3); }
.badge.accent  { background: rgba(249, 115, 22, 0.12); color: var(--accent); border-color: rgba(249, 115, 22, 0.3); }

/* ---------- Alerts ---------- */

.alert {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  font-size: 0.875rem;
  align-items: flex-start;
}
.alert .icon { font-family: 'Material Symbols Outlined'; flex: 0 0 auto; line-height: 1.2; }
.alert.info    { background: rgba(6, 182, 212, 0.08); border-color: rgba(6, 182, 212, 0.3); color: #67e8f9; }
.alert.success { background: rgba(16, 185, 129, 0.08); border-color: rgba(16, 185, 129, 0.3); color: #6ee7b7; }
.alert.warning { background: rgba(245, 158, 11, 0.08); border-color: rgba(245, 158, 11, 0.3); color: #fcd34d; }
.alert.error   { background: rgba(239, 68, 68, 0.08); border-color: rgba(239, 68, 68, 0.3); color: #fca5a5; }

/* ---------- Tables ---------- */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--panel);
}
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.875rem;
}
.table th {
  background: rgba(26, 26, 26, 0.6);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
}
.table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-soft);
}
.table tbody tr:hover { background: var(--hover); }
.table tbody tr:last-child td { border-bottom: none; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- Tabs ---------- */

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.tab {
  padding: 10px 16px;
  background: transparent;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: color 0.15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); }
.tab.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

/* ---------- Skeleton / loading ---------- */

.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.05) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.skeleton-line { height: 12px; margin-bottom: 8px; }
.skeleton-line:last-child { margin-bottom: 0; width: 60%; }
.skeleton-block { height: 80px; }

.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Breadcrumbs ---------- */

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--muted);
  margin-bottom: 16px;
}
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep::before { content: "/"; padding: 0 4px; opacity: 0.5; }
.crumbs .current { color: var(--text); font-weight: 500; }

/* ---------- Modal ---------- */

.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.modal {
  width: 90%;
  max-width: 480px;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.6);
  overflow: hidden;
}
.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border-soft); display: flex; justify-content: space-between; align-items: center; }
.modal-title { font-size: 1.125rem; font-weight: 600; margin: 0; letter-spacing: -0.01em; }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border-soft); display: flex; gap: 8px; justify-content: flex-end; }

/* ---------- Section header ---------- */

.section-h {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin: 32px 0 20px;
}
.section-h h2 { margin: 0; font-size: 1.125rem; font-weight: 600; letter-spacing: -0.01em; }
.section-h .hint { font-size: 0.8125rem; color: var(--muted); }

/* ---------- Misc ---------- */

.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.col { display: flex; flex-direction: column; gap: 12px; }
.spacer { flex: 1; }
.divider { height: 1px; background: var(--border); margin: 24px 0; }
hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* utility */
.mono { font-family: ui-monospace, Consolas, monospace; }
.text-muted { color: var(--muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }
.text-accent { color: var(--accent); }

/* ---------- Login page ---------- */

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-card);
}
.login-card h1 { margin: 0 0 24px; text-align: center; font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; }
.login-card label { display: block; margin-bottom: 16px; }
.login-card label span { display: block; font-size: 0.8125rem; color: var(--muted); margin-bottom: 6px; }
.login-card input {
  width: 100%;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 0.875rem;
}
.login-card input:focus {
  outline: none;
  border-color: var(--accent);
}
.login-card button {
  width: 100%;
  margin-top: 8px;
}
.login-card .error {
  color: var(--error);
  font-size: 0.875rem;
  margin-top: 12px;
  text-align: center;
}

/* ---------- Empty state ---------- */

.empty-state {
  margin-top: 80px;
  text-align: center;
}

/* ---------- Footer (page footer when needed) ---------- */

.page-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  background: var(--panel);
  font-size: 0.75rem;
  color: var(--muted);
}

/* ---------- Chips (filter / preset / asset) ---------- */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.12s ease;
  user-select: none;
}
.chip:hover {
  border-color: var(--accent);
  background: var(--hover);
}
.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d0d0d;
}
.chip.active:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
}
.chip--removable {
  padding-right: 6px;
}
.chip--removable .chip-x {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.25);
  font-size: 0.75rem;
  line-height: 1;
}
.chip--removable .chip-x:hover {
  background: rgba(0, 0, 0, 0.5);
}
.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--muted);
}

/* ---------- Date range picker ---------- */

.date-range {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
}
.date-range .field {
  min-width: 150px;
}
.date-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

/* ---------- Toolbar (filter rows above charts/tables) ---------- */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
}
.toolbar-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.toolbar-group .toolbar-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.toolbar-spacer {
  flex: 1;
}

/* ---------- Sparklines (inline mini-charts) ---------- */

.sparkline {
  display: inline-block;
  vertical-align: middle;
  height: 28px;
  width: 80px;
}
.sparkline svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.sparkline path {
  fill: none;
  stroke-width: 1.5;
}
.sparkline.up path { stroke: var(--success); }
.sparkline.down path { stroke: var(--error); }
.sparkline.flat path { stroke: var(--muted); }
.sparkline-fill {
  opacity: 0.18;
}

/* ---------- Regime badges (BCRS / market regime) ---------- */

.regime {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.regime-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
}
.regime.risk-on  { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.regime.risk-on  .regime-dot { background: #10b981; }
.regime.neutral  { background: rgba(156, 163, 175, 0.15); color: #d1d5db; }
.regime.neutral  .regime-dot { background: #9ca3af; }
.regime.elevated { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.regime.elevated .regime-dot { background: #f59e0b; }
.regime.stress   { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.regime.stress   .regime-dot { background: #ef4444; }

/* ---------- Chart container ---------- */

.chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 8px;
}
.chart-title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}
.chart-subtitle {
  font-size: 0.8125rem;
  color: var(--muted);
  margin: 2px 0 0;
}
.chart-actions {
  display: flex;
  gap: 6px;
}
.chart-canvas {
  width: 100%;
  height: 320px;
}
.chart-canvas--tall { height: 420px; }
.chart-canvas--short { height: 200px; }
.chart-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  font-size: 0.6875rem;
  color: var(--muted);
}
.chart-footer .source { letter-spacing: 0.02em; }
.chart-footer .watermark {
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.chart-footer .author {
  font-weight: 600;
  color: var(--text);
}

/* ---------- Stat card with sparkline ---------- */

.stat--with-spark {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}
.stat--with-spark .spark-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

/* ---------- Segmented control (log/linear, 1d/7d/30d) ---------- */

.segmented {
  display: inline-flex;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}
.segmented button {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  letter-spacing: 0.02em;
}
.segmented button:hover { color: var(--text); }
.segmented button.active {
  background: var(--accent);
  color: #0d0d0d;
}

/* ---------- Sortable table extras ---------- */

.table th.sortable {
  cursor: pointer;
  user-select: none;
}
.table th.sortable:hover { color: var(--accent); }
.table th .sort-icon {
  font-size: 0.6875rem;
  opacity: 0.5;
  margin-left: 4px;
}
.table th.sort-asc  .sort-icon::before { content: "▲"; opacity: 1; color: var(--accent); }
.table th.sort-desc .sort-icon::before { content: "▼"; opacity: 1; color: var(--accent); }
.table th .sort-icon:not(:has(*))::before {
  content: "↕";
}

.table td.spark-cell {
  width: 100px;
  padding-top: 6px;
  padding-bottom: 6px;
}

/* ---------- Pagination ---------- */

.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 4px 0;
  font-size: 0.8125rem;
  color: var(--muted);
}
.pagination .pager {
  display: flex;
  gap: 4px;
}
.pagination .pager button {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-size: 0.8125rem;
}
.pagination .pager button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d0d0d;
}
.pagination .pager button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---------- KPI dashboard grid (denser than .grid) ---------- */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

/* ---------- Section divider ---------- */

.divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}
.page-footer .version { font-family: ui-monospace, Consolas, monospace; }