/* ═══════════════════════════════════════════════════════════
   SBIS DWH — Design System
   Premium financial analytics dashboard
   ═══════════════════════════════════════════════════════════ */

/* ── Design Tokens ────────────────────────────────────────── */
:root {
  /* Brand */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-soft: #dbeafe;
  --color-primary-text: #ffffff;

  /* Financial semantics */
  --color-income: #059669;
  --color-income-soft: #d1fae5;
  --color-expense: #dc2626;
  --color-expense-soft: #fee2e2;
  --color-neutral: #6366f1;
  --color-neutral-soft: #e0e7ff;
  --color-cash: #0891b2;
  --color-cash-soft: #cffafe;

  /* Surfaces */
  --surface-0: #ffffff;
  --surface-1: #f8fafc;
  --surface-2: #f1f5f9;
  --surface-3: #e2e8f0;

  /* Borders */
  --border: #e2e8f0;
  --border-hover: #cbd5e1;
  --border-focus: #93c5fd;

  /* Text */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --t-2xs: 10px;
  --t-xs:  12px;
  --t-sm:  14px;
  --t-base:16px;
  --t-lg:  20px;
  --t-xl:  28px;
  --t-2xl: 36px;

  /* Chart palette */
  --chart-1: #2563eb;
  --chart-2: #059669;
  --chart-3: #dc2626;
  --chart-4: #d97706;
  --chart-5: #7c3aed;
  --chart-6: #db2777;
  --chart-7: #0891b2;
  --chart-8: #65a30d;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ── Dark Mode ────────────────────────────────────────────── */
[data-theme="dark"] {
  --surface-0: #0f172a;
  --surface-1: #1e293b;
  --surface-2: #334155;
  --surface-3: #475569;
  --border: #334155;
  --border-hover: #475569;
  --border-focus: #3b82f6;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 20px rgba(0,0,0,0.5);
  --color-income: #34d399;
  --color-income-soft: #064e3b;
  --color-expense: #f87171;
  --color-expense-soft: #450a0a;
  --color-primary-soft: #1e3a5f;
  --color-neutral-soft: #312e81;
  --color-cash-soft: #164e63;
}

/* ── Base Reset ───────────────────────────────────────────── */
* { box-sizing: border-box; }

body {
  font-family: var(--font-sans);
  font-size: var(--t-sm);
  color: var(--text-primary);
  background: var(--surface-0);
  line-height: 1.6;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}


.theme-toggle {
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2em;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  line-height: 1;
}

.theme-toggle:hover { color: var(--text-primary); background: var(--surface-2); }

/* ── KPI Cards ────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.kpi-card--income { --card-accent: var(--color-income); }
.kpi-card--expense { --card-accent: var(--color-expense); }
.kpi-card--balance { --card-accent: var(--color-primary); }
.kpi-card--cash { --card-accent: var(--color-cash); }
.kpi-card--count { --card-accent: var(--text-muted); }

.kpi-value {
  font-family: var(--font-mono);
  font-size: var(--t-xl);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  margin-bottom: var(--space-1);
}

.kpi-change {
  font-size: var(--t-xs);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
}

.kpi-change--up { color: var(--color-income); background: var(--color-income-soft); }
.kpi-change--down { color: var(--color-expense); background: var(--color-expense-soft); }

/* ── Filter Bar ───────────────────────────────────────────── */
.filter-bar {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.filter-bar form {
  display: flex;
  gap: var(--space-3);
  align-items: end;
  flex-wrap: wrap;
  margin: 0;
}

.filter-bar label {
  font-size: var(--t-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin: 0;
}

.filter-bar input,
.filter-bar select {
  font-family: var(--font-sans);
  font-size: var(--t-sm);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-0);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
  margin: 0;
  margin-top: var(--space-1);
}

.filter-bar input:focus,
.filter-bar select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.filter-bar input[type="date"] { width: 150px; }

.date-presets {
  display: flex;
  gap: var(--space-1);
  align-items: end;
}

.date-presets button {
  padding: var(--space-1) var(--space-3);
  font-size: var(--t-xs);
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface-0);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin: 0;
  white-space: nowrap;
}

.date-presets button:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-primary {
  padding: var(--space-2) var(--space-4);
  font-size: var(--t-sm);
  font-weight: 600;
  background: var(--color-primary);
  color: var(--color-primary-text);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary:hover { background: var(--color-primary-hover); }

.btn-secondary {
  padding: var(--space-2) var(--space-3);
  font-size: var(--t-sm);
  font-weight: 500;
  background: var(--surface-0);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.btn-secondary:hover { background: var(--surface-2); color: var(--text-primary); }

/* ── Tables ───────────────────────────────────────────────── */
.table-container {
  background: var(--surface-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
}

.table-count {
  font-size: var(--t-sm);
  color: var(--text-muted);
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--t-sm);
}

thead th {
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: var(--t-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  cursor: default;
  user-select: none;
}

tbody td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }

tbody tr:nth-child(even) { background: var(--surface-1); }

tbody tr:hover { background: var(--color-primary-soft); }

tbody tr.clickable-row { cursor: pointer; }

.amount {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

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

.badge {
  display: inline-block;
  padding: 2px var(--space-2);
  font-size: var(--t-xs);
  font-weight: 500;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text-secondary);
}

.badge--income { background: var(--color-income-soft); color: var(--color-income); }
.badge--expense { background: var(--color-expense-soft); color: var(--color-expense); }

/* ── Pagination ───────────────────────────────────────────── */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--border);
}

.pagination-info {
  font-size: var(--t-sm);
  color: var(--text-muted);
}

.pagination-pages {
  display: flex;
  gap: var(--space-1);
}

.pagination-pages a,
.pagination-pages span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 var(--space-2);
  font-size: var(--t-sm);
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.pagination-pages a {
  color: var(--text-secondary);
  background: var(--surface-0);
  border: 1px solid var(--border);
}

.pagination-pages a:hover {
  background: var(--surface-2);
  color: var(--text-primary);
}

.pagination-pages .active {
  background: var(--color-primary);
  color: var(--color-primary-text);
  border-color: var(--color-primary);
}

.pagination-pages .ellipsis {
  color: var(--text-muted);
  border: none;
}

/* ── Chart Cards ──────────────────────────────────────────── */
.chart-card {
  background: var(--surface-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-5);
}

.chart-card h3 {
  font-size: var(--t-base);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.25rem 0;
}

.chart-subtitle {
  font-size: var(--t-sm);
  color: var(--text-secondary);
  margin: 0 0 var(--space-3) 0;
  font-weight: 400;
}

.chart-source {
  font-size: var(--t-2xs);
  color: var(--text-muted, var(--text-secondary));
  text-align: right;
  margin-top: var(--space-2);
  opacity: 0.7;
}

.chart-card canvas {
  width: 100% !important;
}

/* ── Grid Layouts ─────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }

/* ── Sync Section ─────────────────────────────────────────── */
.sync-section {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-top: var(--space-6);
}

.sync-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
}

.sync-header h3 {
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin: 0;
}

/* ── Empty State ──────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  color: var(--text-muted);
}

.empty-state svg { width: 48px; height: 48px; margin-bottom: var(--space-3); opacity: 0.5; }
.empty-state p { font-size: var(--t-sm); margin: 0; }

/* ── Login Page ───────────────────────────────────────────── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--surface-1);
}

.login-card {
  background: var(--surface-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  width: 100%;
  padding: var(--space-8) var(--space-6);
}

.login-logo {
  text-align: center;
  margin-bottom: var(--space-6);
}

.login-logo svg { width: 40px; height: 40px; color: var(--color-primary); margin-bottom: var(--space-3); }
.login-logo h1 { font-size: var(--t-lg); font-weight: 700; margin: 0; color: var(--text-primary); }
.login-logo p { font-size: var(--t-sm); color: var(--text-muted); margin: var(--space-1) 0 0; }

.login-card label {
  display: block;
  font-size: var(--t-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.login-card input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: var(--t-sm);
  background: var(--surface-0);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  transition: border-color var(--transition-fast);
}

.login-card input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.login-card .btn-primary {
  width: 100%;
  padding: var(--space-3);
  font-size: var(--t-sm);
  margin-top: var(--space-2);
}

.login-error {
  background: var(--color-expense-soft);
  color: var(--color-expense);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--t-sm);
  text-align: center;
  margin-bottom: var(--space-4);
  animation: shake 0.4s ease;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-5);
  text-align: center;
  font-size: var(--t-xs);
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  margin-top: var(--space-6);
}

/* ── Table Scroll ─────────────────────────────────────────── */
.table-wrap.table-scroll {
  max-height: 70vh;
  overflow-y: auto;
}

/* ── KPI Status (traffic-light system) ────────────────────── */
.kpi-card.status-good    { --card-accent: var(--color-income); }
.kpi-card.status-warning { --card-accent: #f59e0b; background: #fffbeb; }
.kpi-card.status-critical{ --card-accent: var(--color-expense); background: #fef2f2; }
.kpi-card.status-neutral { --card-accent: var(--text-muted); }

[data-theme="dark"] .kpi-card.status-warning { background: #451a03; }
[data-theme="dark"] .kpi-card.status-critical { background: #450a0a; }

.kpi-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: var(--t-xs);
  font-weight: 600;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
}
.kpi-status-badge.good    { color: var(--color-income); background: var(--color-income-soft); }
.kpi-status-badge.warning { color: #92400e; background: #fef3c7; }
.kpi-status-badge.critical{ color: var(--color-expense); background: var(--color-expense-soft); }

[data-theme="dark"] .kpi-status-badge.warning { color: #fcd34d; background: #451a03; }

/* ── KPI 4-column grid ────────────────────────────────────── */
.kpi-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

/* ── Info Box ─────────────────────────────────────────────── */
.info-box {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background: var(--color-primary-soft);
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
  font-size: var(--t-sm);
  color: var(--color-primary);
}
.info-box svg { flex-shrink: 0; margin-top: 2px; }

/* ── Sort Links ───────────────────────────────────────────── */
.sort-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--t-2xs);
  margin-left: var(--space-1);
  transition: color var(--transition-fast);
}
.sort-link:hover { color: var(--color-primary); }
.sort-link.active { color: var(--color-primary); }

/* ── Insights Section ─────────────────────────────────────── */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.insight-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background: var(--surface-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-sm);
}

.insight-card .insight-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.insight-card .insight-text {
  font-size: var(--t-sm);
  color: var(--text-primary);
  line-height: 1.5;
}

.insight-card.good    { border-left: 3px solid var(--color-income); }
.insight-card.warning { border-left: 3px solid #f59e0b; }
.insight-card.critical{ border-left: 3px solid var(--color-expense); }
.insight-card.info    { border-left: 3px solid var(--color-primary); }

/* ── Cash-Noncash Split ───────────────────────────────────── */
.cash-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  align-items: start;
  margin-bottom: var(--space-5);
}

/* ── Settings Page ────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: var(--space-5);
}

.tab-btn {
  padding: var(--space-3) var(--space-5);
  font-size: var(--t-sm);
  font-weight: 500;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 600; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Tag input for category mapping */
.tag-input-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  min-height: 42px;
  padding: var(--space-1) var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  align-items: center;
  background: var(--surface-0);
  cursor: text;
}
.tag-input-wrap input {
  border: none;
  outline: none;
  background: transparent;
  font-size: var(--t-sm);
  flex: 1;
  min-width: 120px;
  padding: var(--space-1) var(--space-2);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: var(--t-xs);
  font-weight: 500;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
}
.tag button {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  font-size: 0.9em;
  padding: 0;
  line-height: 1;
  opacity: 0.7;
}
.tag button:hover { opacity: 1; }

.autocomplete-list {
  position: absolute;
  z-index: 200;
  background: var(--surface-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  max-height: 200px;
  overflow-y: auto;
  min-width: 300px;
}
.autocomplete-list li {
  padding: var(--space-2) var(--space-3);
  font-size: var(--t-sm);
  cursor: pointer;
  list-style: none;
}
.autocomplete-list li:hover { background: var(--surface-2); }

.settings-section {
  background: var(--surface-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.settings-section h3 {
  font-size: var(--t-sm);
  font-weight: 600;
  margin: 0 0 var(--space-4) 0;
  color: var(--text-primary);
}

.settings-table { width: 100%; border-collapse: collapse; }
.settings-table th, .settings-table td {
  padding: var(--space-3) var(--space-3);
  text-align: left;
  font-size: var(--t-sm);
  border-bottom: 1px solid var(--border);
}
.settings-table th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--surface-1);
}
.settings-table input[type="number"],
.settings-table input[type="text"] {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: var(--t-sm);
  background: var(--surface-0);
  color: var(--text-primary);
}
.settings-table input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.metric-row-wrap { position: relative; }

/* Plan vs Actual table */
.plan-table td.plan { color: var(--color-primary); }
.plan-table td.actual-good { color: var(--color-income); }
.plan-table td.actual-bad { color: var(--color-expense); }
.plan-table td.delta-pos { color: var(--color-income); font-weight: 600; }
.plan-table td.delta-neg { color: var(--color-expense); font-weight: 600; }

/* ── Target line annotation hint ─────────────────────────── */
.target-hint {
  font-size: var(--t-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* ── Animations ───────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-4px); }
  40%, 80% { transform: translateX(4px); }
}

.animate-in {
  animation: fadeInUp 0.3s ease forwards;
  opacity: 0;
}

/* Stagger children */
.stagger > :nth-child(1) { animation-delay: 0ms; }
.stagger > :nth-child(2) { animation-delay: 50ms; }
.stagger > :nth-child(3) { animation-delay: 100ms; }
.stagger > :nth-child(4) { animation-delay: 150ms; }
.stagger > :nth-child(5) { animation-delay: 200ms; }

/* ── App Shell (CSS Grid) ─────────────────────────────────── */
.app {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  width: 100%;
}

/* ── Sidebar ──────────────────────────────────────────── */
.sidebar {
  background: #0f172a;
  color: #e2e8f0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

[data-theme="dark"] .sidebar { background: #0f172a; }

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 16px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.sidebar-logo-mark {
  width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px; font-weight: 800;
}

.sidebar-title {
  display: flex; flex-direction: column; gap: 1px;
}

.sidebar-title-main {
  font-size: var(--t-lg); font-weight: 700; color: #f1f5f9; line-height: 1;
}

.sidebar-title-sub {
  font-size: var(--t-xs); color: #64748b; font-weight: 400;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

.nav-group-label {
  font-size: var(--t-2xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #475569;
  padding: 12px 16px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  font-size: var(--t-sm);
  font-weight: 500;
  color: #94a3b8;
  text-decoration: none;
  border-radius: 6px;
  margin: 1px 8px;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-item:hover {
  background: rgba(255,255,255,0.06);
  color: #e2e8f0;
}

.nav-item.active {
  background: rgba(59,130,246,0.14);
  color: #93c5fd;
}

.sidebar-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid rgba(255,255,255,0.07);
  font-size: var(--t-xs);
  color: #64748b;
}

.sidebar-footer .theme-toggle,
.sidebar-footer .logout-link {
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--t-xs);
  color: #64748b;
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color var(--transition-fast);
}

.sidebar-footer .theme-toggle:hover,
.sidebar-footer .logout-link:hover {
  color: #94a3b8;
}

/* ── Main Column ──────────────────────────────────────────── */
.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
  background: var(--surface-1);
}

/* ── Topbar ───────────────────────────────────────────────── */
.topbar {
  height: 64px;
  background: var(--surface-0);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  flex-shrink: 0;
}

[data-theme="dark"] .topbar { background: #1e293b; }

.topbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.breadcrumb-parent {
  font-size: var(--t-sm);
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.breadcrumb-sep {
  color: var(--text-muted);
  font-size: var(--t-sm);
}

.breadcrumb-current {
  font-size: var(--t-lg);
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.sync-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--t-2xs);
  color: var(--text-muted);
}

.sync-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #22c55e;
}

.sync-dot.running { background: #f59e0b; animation: pulse 1s infinite; }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 4px;
  border-radius: 4px;
  flex-shrink: 0;
}

/* ── KPI Cards ────────────────────────────────────────────── */
.kpi-card {
  background: var(--surface-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 16px 14px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
  position: relative;
}

.kpi-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.kpi-label {
  font-size: var(--t-2xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}

.kpi-badge {
  font-size: var(--t-2xs);
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
}

.kpi-badge-good    { background: #dcfce7; color: #16a34a; }
.kpi-badge-warning { background: #fef9c3; color: #a16207; }
.kpi-badge-critical{ background: #fee2e2; color: #dc2626; }
.kpi-badge-neutral { background: var(--surface-1); color: var(--text-muted); }

[data-theme="dark"] .kpi-badge-good    { background: #14532d; color: #86efac; }
[data-theme="dark"] .kpi-badge-warning { background: #451a03; color: #fde68a; }
[data-theme="dark"] .kpi-badge-critical{ background: #450a0a; color: #fca5a5; }

.kpi-meta {
  font-size: var(--t-2xs);
  color: var(--text-muted);
}

.kpi-val-area {
  min-height: 46px;
  display: flex;
  align-items: flex-start;
  margin-bottom: 0;
}

.kpi-val {
  font-size: clamp(18px, 2.2vw, 28px);
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
  line-height: 1.15;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.kpi-val.sm { font-size: clamp(16px, 2vw, 24px); }

.kpi-spark {
  height: 44px;
  margin: 4px -16px 0;
  overflow: hidden;
}

.kpi-spark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.kpi-foot {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-top: 8px;
  font-size: var(--t-2xs);
  color: var(--text-muted);
}

.kpi-delta {
  font-size: var(--t-sm);
  font-weight: 700;
}

.kpi-delta.good { color: #22c55e; }
.kpi-delta.warning { color: #f59e0b; }
.kpi-delta.critical { color: #ef4444; }
.kpi-delta.neutral { color: var(--text-muted); }

/* ── Section Header ───────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.section-label {
  font-size: var(--t-2xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  white-space: nowrap;
}

.section-rule {
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Content Area ─────────────────────────────────────────── */
.content {
  flex: 1;
  padding: 28px 28px 40px;
  min-width: 0;
}

/* ── Sidebar overlay (mobile/tablet) ──────────────────── */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(0,0,0,0.4);
}

@media (max-width: 1023px) {
  .app { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed;
    top: 0; left: 0;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

  body.sidebar-open .sidebar { transform: translateX(0); }
  body.sidebar-open .sidebar-backdrop { display: block; }

  .hamburger { display: flex; }
}

@media (max-width: 767px) {
  .date-presets { display: none; }
  .content { padding: 16px 16px 32px; }
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
  .kpi-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .cash-split-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hamburger { display: block; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .filter-bar form { flex-direction: column; align-items: stretch; }
  .filter-bar form > * { width: 100%; }
  .filter-bar input[type="date"] { width: 100%; }
  .date-presets { justify-content: center; }
}

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

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .pagination { flex-direction: column; gap: var(--space-3); }
}