:root {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --border: #e2e8f0;
  --text: #1a202c;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --warning: #b45309;
  --warning-bg: #fef3c7;
  --success: #15803d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.topbar {
  background: var(--primary);
  color: #fff;
  padding: 16px 24px;
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.topbar h1 { margin: 0; font-size: 1.25rem; }

.month-label { font-size: 0.9rem; opacity: 0.9; }

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.banner {
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 0.95rem;
}

.banner-warning {
  background: var(--warning-bg);
  border-color: #fcd34d;
  color: var(--warning);
}

.banner-danger {
  background: var(--danger-bg);
  border-color: #fca5a5;
  color: var(--danger);
}

.hidden { display: none !important; }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card-label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.card-value {
  font-size: 1.35rem;
  font-weight: 700;
}

.card-value.negative { color: var(--danger); }
.card-value.over { color: var(--danger); }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-head h2 { margin: 0; }

.inline-form, .tx-form {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 0.82rem; color: var(--muted); }
.field-submit { align-self: flex-end; }

input, select {
  font-size: 1rem;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  min-width: 120px;
}

input:focus, select:focus {
  outline: 2px solid var(--primary);
  border-color: var(--primary);
}

.btn {
  font-size: 1rem;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

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

.btn-danger {
  color: var(--danger);
  border-color: #fca5a5;
  background: #fff;
}

.btn-small { padding: 4px 10px; font-size: 0.85rem; }

.hint { color: var(--muted); font-size: 0.85rem; margin: 8px 0 0; }
.hint.error { color: var(--danger); }
.hint.success { color: var(--success); }

.tx-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.tx-table th, .tx-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.tx-table th.num, .tx-table td.num { text-align: right; }
.tx-table th.actions, .tx-table td.actions { text-align: right; width: 120px; }

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}

.tag-receita { background: #dcfce7; color: var(--success); }
.tag-despesa { background: #fee2e2; color: var(--danger); }

.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.history-table th, .history-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.history-table td.num, .history-table th.num { text-align: right; }

dialog {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  width: min(420px, 90vw);
}

dialog h2 { margin: 0 0 12px; font-size: 1.1rem; }

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

dialog .field { margin-bottom: 10px; }