:root {
  --bg-body: #0f1219;
  --bg-card: #1a1f2e;
  --bg-input: #0d1117;
  --bg-table-header: #141824;
  --bg-table-hover: #1f2538;
  --border: #252b3d;
  --text-primary: #e8ecf4;
  --text-secondary: #8892a7;
  --text-muted: #5a6178;
  --accent-teal: #00d4aa;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-pink: #ff6b8a;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  --radius: 10px;
  --radius-sm: 6px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-body); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Login ───────────────────────────────────────────────────────── */
.login-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-card {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: var(--radius);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.login-card h1 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  text-align: center;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}
.login-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
  font-weight: 500;
}
.form-group input {
  width: 100%;
  padding: 0.625rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9375rem;
  transition: border-color 0.2s;
}
.form-group input:focus { outline: none; border-color: var(--accent-blue); }
.btn-primary {
  width: 100%;
  padding: 0.625rem;
  background: var(--accent-blue);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: background 0.2s;
}
.btn-primary:hover { background: var(--accent-blue-hover); }
.error-msg {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  padding: 0.625rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  text-align: center;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ── Top Navigation ──────────────────────────────────────────────── */
.top-nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}
.nav-brand svg { width: 22px; height: 22px; color: var(--accent-teal); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.etrade-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.status-dot.connected { background: var(--accent-green); box-shadow: 0 0 6px var(--accent-green); }
.status-dot.disconnected { background: var(--accent-red); box-shadow: 0 0 6px var(--accent-red); }
.status-dot.pending { background: var(--accent-yellow); box-shadow: 0 0 6px var(--accent-yellow); }
.nav-btn {
  padding: 0.375rem 0.75rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}
.nav-btn:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
.sandbox-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  background: rgba(249, 115, 22, 0.15);
  color: #fb923c;
  font-size: 0.6875rem;
  font-weight: 600;
  border-radius: 4px;
  letter-spacing: 0.05em;
}
.mode-toggle {
  display: flex;
  background: var(--bg-body);
  border-radius: var(--radius-sm);
  padding: 3px;
  border: 1px solid var(--border);
}
.mode-btn {
  padding: 0.375rem 0.875rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.6875rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s;
  letter-spacing: 0.05em;
}
.mode-btn.active-dry { background: var(--accent-yellow); color: #000; }
.mode-btn.active-live { background: var(--accent-green); color: #000; }
.nav-logout {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  transition: color 0.2s;
}
.nav-logout:hover { color: var(--text-primary); }

/* ── Dashboard Layout ────────────────────────────────────────────── */
.dashboard {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── Alert ────────────────────────────────────────────────────────── */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
}
.alert-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

/* ── KPI Cards ───────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
}
.kpi-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}
.kpi-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.kpi-value.positive { color: var(--accent-teal); }
.kpi-value.negative { color: var(--accent-pink); }
.kpi-sub {
  font-size: 0.6875rem;
  color: var(--text-muted);
  margin-top: 0.375rem;
}

/* ── Cards ────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.card-header h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.card-body { padding: 1.5rem; }

/* ── Charts ───────────────────────────────────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.chart-canvas {
  padding: 1rem 1.5rem 1.5rem;
  height: 260px;
}
.chart-empty {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8125rem;
}

/* ── Tables ───────────────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}
.data-table thead th {
  padding: 0.625rem 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg-table-header);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table tbody td {
  padding: 0.625rem 1rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-table-hover); }
.data-table .ticker { font-weight: 600; color: var(--text-primary); }
.data-table .positive { color: var(--accent-teal); }
.data-table .negative { color: var(--accent-pink); }
.data-table .text-right { text-align: right; }

/* ── Action Buttons ──────────────────────────────────────────────── */
.btn-action {
  padding: 0.25rem 0.625rem;
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 4px;
  color: var(--accent-red);
  font-size: 0.6875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-action:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--accent-red);
}
.btn-action:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn-action.pending {
  border-color: var(--accent-yellow);
  color: var(--accent-yellow);
}

/* ── Empty State ─────────────────────────────────────────────────── */
.empty-state {
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8125rem;
}

/* ── Bottom Grid ─────────────────────────────────────────────────── */
.bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ── Schedule ────────────────────────────────────────────────────── */
.schedule-list { list-style: none; }
.schedule-item {
  display: flex;
  align-items: center;
  padding: 0.625rem 1.5rem;
  border-bottom: 1px solid var(--border);
  gap: 0.75rem;
}
.schedule-item:last-child { border-bottom: none; }
.schedule-time {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-teal);
  min-width: 80px;
  font-variant-numeric: tabular-nums;
}
.schedule-name {
  font-size: 0.8125rem;
  color: var(--text-primary);
  min-width: 130px;
  font-weight: 500;
}
.schedule-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Regime ───────────────────────────────────────────────────────── */
.regime-score-display {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.regime-score-value {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.regime-score-value.bull { color: var(--accent-teal); }
.regime-score-value.bear { color: var(--accent-pink); }
.regime-score-value.neutral { color: var(--accent-yellow); }
.regime-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.regime-indicators {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 1.5rem;
  margin-bottom: 1rem;
}
.regime-indicator {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.8125rem;
}
.regime-indicator-label { color: var(--text-muted); }
.regime-indicator-value { color: var(--text-primary); font-weight: 500; }
.regime-narrative {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

/* ── Pending Close Row ───────────────────────────────────────────── */
.pending-close td { opacity: 0.45; }
.pending-close .btn-action { opacity: 1; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 1200px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1024px) {
  .charts-grid { grid-template-columns: 1fr; }
  .bottom-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .top-nav {
    height: auto;
    flex-direction: column;
    padding: 0.75rem 1rem;
    gap: 0.75rem;
  }
  .nav-actions { flex-wrap: wrap; justify-content: center; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .data-table { font-size: 0.75rem; }
  .data-table thead th, .data-table tbody td { padding: 0.5rem 0.625rem; }
  .dashboard { padding: 1rem; }
  .schedule-item { flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
}