:root {
  --bg: #1f2329;
  --card: #2a2f37;
  --surface: #343a44;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: #404851;
  --primary: #e5e7eb;
  --primary-text: #111827;
  --danger: #f87171;
  --success: #34d399;
  --warning: #fbbf24;
  --radius: 14px;
  --shadow: 0 2px 12px rgba(0,0,0,0.25);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background: var(--bg); color: var(--text); }
.login-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; background: linear-gradient(135deg, #16191e 0%, #252a32 100%); }
.login-card { width: 100%; max-width: 360px; background: var(--card); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); text-align: center; }
.login-card h1 { margin: 0 0 8px; font-size: 1.6rem; }
.login-card .sub { margin: 0 0 24px; color: var(--muted); }
.stack { display: flex; flex-direction: column; gap: 14px; }
label { text-align: left; font-weight: 500; font-size: 0.9rem; display: flex; flex-direction: column; gap: 6px; }
input, select, textarea { padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 1rem; background: var(--surface); color: var(--text); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
textarea { min-height: 100px; resize: vertical; }
button, .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 18px; border: none; border-radius: 10px; background: var(--primary); color: var(--primary-text); font-size: 1rem; font-weight: 600; cursor: pointer; text-decoration: none; }
button:disabled, .btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.secondary { background: var(--surface); color: var(--text); }
.btn.danger { background: var(--danger); color: #1f2329; }
.btn.small { padding: 8px 12px; font-size: 0.85rem; }
.error { color: var(--danger); font-size: 0.9rem; margin: 0; }
.success { color: var(--success); font-size: 0.9rem; margin: 0; }

.app { max-width: 980px; margin: 0 auto; padding: 16px; }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
header.top h1 { margin: 0; font-size: 1.25rem; }
nav { display: flex; gap: 10px; flex-wrap: wrap; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-bottom: 22px; }
.card { background: var(--card); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.card .label { font-size: 0.8rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 6px; }
.card .value { font-size: 1.5rem; font-weight: 700; }
.card .value.pos { color: var(--success); }
.card .value.neg { color: var(--danger); }

.section { background: var(--card); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; box-shadow: var(--shadow); }
.section h2 { margin: 0 0 14px; font-size: 1.15rem; display: flex; align-items: center; justify-content: space-between; gap: 10px; }

.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.filter-bar input, .filter-bar select { flex: 1 1 140px; min-width: 140px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; }
tr:last-child td { border-bottom: none; }
.type-income { color: var(--success); font-weight: 600; }
.type-expense { color: var(--danger); font-weight: 600; }
.actions { display: flex; gap: 8px; }
.empty { color: var(--muted); padding: 20px 0; text-align: center; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.form-actions { display: flex; gap: 10px; margin-top: 18px; }

.flash { padding: 12px 14px; border-radius: 10px; margin-bottom: 16px; }
.flash.success { background: rgba(52,211,153,0.15); color: var(--success); }
.flash.error { background: rgba(248,113,113,0.15); color: var(--danger); }

.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tab { padding: 8px 14px; border-radius: 8px; background: var(--surface); color: var(--text); cursor: pointer; border: none; font-size: 0.95rem; }
.tab.active { background: var(--primary); color: var(--primary-text); }

.upload-hint { font-size: 0.85rem; color: var(--muted); margin-top: 4px; }
.badge { display: inline-block; padding: 3px 8px; border-radius: 999px; background: var(--surface); font-size: 0.75rem; font-weight: 600; }

a { color: var(--text); }

@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
  th, td { font-size: 0.9rem; padding: 10px 8px; }
  header.top h1 { font-size: 1.1rem; }
}