:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --danger: #dc2626;
  --border: #e5e7eb;
  --income: #059669;
  --expense: #dc2626;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}

.topbar {
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #fff;
  padding: 20px 24px;
}

.topbar h1 {
  margin: 0 0 6px;
}

.topbar p {
  margin: 0;
  opacity: 0.95;
}

.container {
  max-width: 1180px;
  margin: 20px auto 36px;
  padding: 0 14px;
}

.section-gap {
  margin-bottom: 16px;
}

.hidden {
  display: none !important;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.status-text {
  margin: 4px 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.status-error {
  color: #b91c1c;
}

.status-success {
  color: #047857;
}

.user-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.locked-text {
  margin: 0;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
  padding: 10px;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.kpi h3 {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.kpi p {
  margin: 8px 0 0;
  font-size: 22px;
  font-weight: 700;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
  font-size: 14px;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 10px;
  background: #fff;
}

.form {
  display: grid;
  gap: 10px;
}

.actions {
  display: flex;
  align-items: end;
  gap: 8px;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 10px 12px;
  cursor: pointer;
  font-weight: 600;
}

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

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

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

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--border);
  text-align: left;
  padding: 10px 8px;
  font-size: 14px;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 700;
}

.amount-income {
  color: var(--income);
  font-weight: 700;
}

.amount-expense {
  color: var(--expense);
  font-weight: 700;
}

.small-danger {
  background: #fee2e2;
  color: #991b1b;
  padding: 6px 10px;
  border-radius: 6px;
}

@media (max-width: 1000px) {
  .kpi-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 520px) {
  .grid-4,
  .kpi-row {
    grid-template-columns: 1fr;
  }
}