:root {
  --accent: #4f46e5;
  --accent-dark: #4338ca;
  --bg: #f4f6fb;
  --surface: #ffffff;
  --text: #1e2230;
  --text-muted: #6b7280;
  --border: #e8eaf0;
  --income: #16a34a;
  --expense: #dc2626;
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161f;
    --surface: #1c1f2b;
    --text: #eef0f6;
    --text-muted: #9497a8;
    --border: #2a2d3b;
    --income: #4ade80;
    --expense: #f87171;
  }
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}

.navbar-modern {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 0;
}

.navbar-modern .navbar-brand {
  font-weight: 700;
  color: var(--text) !important;
  letter-spacing: -0.02em;
}

.navbar-modern .navbar-brand .bi {
  color: var(--accent);
}

.navbar-modern .nav-link {
  color: var(--text-muted) !important;
  font-weight: 500;
  border-radius: 8px;
  padding: 0.45rem 0.9rem !important;
  transition: background 0.15s, color 0.15s;
}

.navbar-modern .nav-link.active,
.navbar-modern .nav-link:hover {
  background: var(--bg);
  color: var(--text) !important;
}

.page-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.card-modern {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
}

.stat-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
}

.stat-tile .label {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-tile .value {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: 0.2rem;
}

.stat-tile.income .value { color: var(--income); }
.stat-tile.expense .value { color: var(--expense); }
.stat-tile .icon-badge {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.stat-tile.income .icon-badge { background: rgba(22,163,74,0.12); color: var(--income); }
.stat-tile.expense .icon-badge { background: rgba(220,38,38,0.12); color: var(--expense); }
.stat-tile.balance .icon-badge { background: rgba(79,70,229,0.12); color: var(--accent); }

.section-title {
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

.table-modern {
  --bs-table-bg: transparent;
}
.table-modern thead th {
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}
.table-modern td, .table-modern th {
  border-color: var(--border);
  vertical-align: middle;
}

.badge-tx {
  font-weight: 600;
  border-radius: 999px;
  padding: 0.32em 0.75em;
  font-size: 0.76rem;
}
.badge-income { background: rgba(22,163,74,0.12); color: var(--income); }
.badge-expense { background: rgba(220,38,38,0.12); color: var(--expense); }

.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.btn-accent:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
}

.form-control, .form-select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
}
.form-control:focus, .form-select:focus {
  background: var(--surface);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.15);
  color: var(--text);
}

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.auth-card {
  max-width: 400px;
  width: 100%;
}

.install-steps .step {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.5rem 0;
  color: var(--text-muted);
}
.install-steps .step .bi { color: var(--accent); margin-top: 0.15rem; }