/* Wallet & Daily Income/Expense - Minimal CSS */
:root {
  --bg: #f5f5f0;
  --surface: #fff;
  --text: #1a1a1a;
  --text-muted: #555;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
  --border: #e5e5e0;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }
body { font-family: system-ui, -apple-system, sans-serif; margin: 0; background: var(--bg); color: var(--text); line-height: 1.5; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 900px; margin: 0 auto; padding: 1rem; }
.nav { background: var(--surface); padding: 0.75rem 1rem; box-shadow: var(--shadow); display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.nav a { color: var(--text); }
.nav .user { margin-left: auto; color: var(--text-muted); font-size: 0.9rem; }
.btn { display: inline-block; padding: 0.5rem 1rem; border-radius: var(--radius); border: none; cursor: pointer; font-size: 0.95rem; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-secondary { background: var(--border); color: var(--text); }
.card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.25rem; margin-bottom: 1rem; }
.card h2 { margin-top: 0; font-size: 1.1rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.25rem; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.5rem; border: 1px solid var(--border); border-radius: 4px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.5rem; text-align: left; border-bottom: 1px solid var(--border); }
th { font-weight: 600; }
.amount-income { color: var(--success); }
.amount-expense { color: var(--danger); }
.amount-neutral { color: var(--text); }
.error { color: var(--danger); font-size: 0.9rem; margin-top: 0.25rem; }
.grid { display: grid; gap: 1rem; }
@media (min-width: 600px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.badge { display: inline-block; padding: 0.2rem 0.5rem; border-radius: 4px; font-size: 0.8rem; }
.badge-income { background: #dcfce7; color: var(--success); }
.badge-expense { background: #fee2e2; color: var(--danger); }
.badge-transfer { background: #dbeafe; color: var(--primary); }
.filters { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; align-items: flex-end; }
.filters .form-group { margin-bottom: 0; }