:root {
  --calculator-input-padding: 10px 12px;
  --calculator-input-radius: 10px;
  --calculator-button-padding: 10px 12px;
  --calculator-button-radius: 10px;
}

.calculator-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 20px 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.is-hidden {
  display: none;
}

.card {
  background: var(--panel-bg);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--panel-shadow);
  border: 1px solid var(--border-color);
}

.card h1,
.card h2 {
  margin-top: 0;
}

.calculator-ui {
  display: grid;
  gap: 18px;
}

.calculator-ui label {
  font-size: 14px;
  color: var(--muted-text);
  display: block;
  margin-bottom: 6px;
}

.calculator-ui input[type='number'],
.calculator-ui input[type='text'],
.calculator-ui input[type='email'],
.calculator-ui input[type='password'],
.calculator-ui input[type='search'],
.calculator-ui input[type='tel'],
.calculator-ui input[type='url'],
.calculator-ui input[type='date'],
.calculator-ui input[type='time'],
.calculator-ui input[type='datetime-local'],
.calculator-ui input[type='month'],
.calculator-ui input[type='week'],
.calculator-ui textarea {
  width: 100%;
  padding: var(--calculator-input-padding);
  border-radius: var(--calculator-input-radius);
  border: 1px solid var(--border-color);
  font-size: 16px;
  font-family: inherit;
  background: var(--panel-bg);
}

.calculator-ui textarea {
  resize: vertical;
}

.calculator-ui .helper {
  color: var(--muted-text);
  margin: 0;
  font-size: 14px;
}

.back-link {
  display: inline-flex;
  margin-bottom: 16px;
  color: var(--accent);
}

.calculator-ui .input-stack {
  display: grid;
  gap: 16px;
}

.calculator-ui .input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.calculator-ui .calculator-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.calculator-ui .toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.calculator-ui .button-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.calculator-ui .button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.calculator-button {
  padding: var(--calculator-button-padding);
  border-radius: var(--calculator-button-radius);
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  line-height: 1.2;
  white-space: nowrap;
}

.calculator-button.primary {
  background: var(--accent);
  color: #fff;
}

.calculator-button.secondary {
  background: #e2e8f0;
  color: #1f2937;
}

.calculator-button.is-active,
.calculator-button[aria-pressed='true'] {
  background: var(--accent);
  color: #fff;
}

.calculator-button.secondary.is-active,
.calculator-button.secondary[aria-pressed='true'] {
  background: var(--accent);
  color: #fff;
}

.calculator-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.full-width {
  width: 100%;
}

.calculator-ui .result {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  min-height: 60px;
}

.calculator-ui .result-detail {
  font-size: 14px;
  color: var(--muted-text);
  margin-top: 8px;
  font-weight: 400;
}

.calculator-ui .result-detail p {
  margin: 0.25rem 0;
}

.calculator-ui .result-scroll {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px;
  max-height: 280px;
  overflow-y: scroll;
  overflow-x: auto;
  scrollbar-gutter: stable;
  background: var(--panel-bg);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.calculator-ui .result-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calculator-ui .result-section h4 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.table-scroll {
  overflow-x: scroll;
  overflow-y: scroll;
  min-width: 0;
  max-height: 240px;
  scrollbar-gutter: stable;
}

.calculator-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border-color);
  font-size: 15px;
  min-width: 400px;
}

.calculator-table th,
.calculator-table td {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  text-align: right;
  white-space: nowrap;
}

.calculator-table th:first-child,
.calculator-table td:first-child {
  text-align: left;
}

.calculator-table thead th {
  background: var(--pill-bg);
  color: var(--muted-text);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.calculator-table tfoot td {
  background: var(--pill-bg);
  font-weight: 600;
}

.graph-panel {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px;
  height: 260px;
  background: var(--panel-bg);
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}

.graph-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted-text);
  flex-shrink: 0;
}

.graph-title {
  color: var(--header-text);
  font-weight: 600;
}

.graph-legend {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  flex-shrink: 0;
}

.graph-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.graph-legend-color {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.graph-legend-color.principal {
  background: var(--accent);
}

.graph-legend-color.interest {
  background: #f59e0b;
}

.graph-legend-color.balance {
  background: #10b981;
}

.graph-container {
  display: flex;
  flex: 1;
  min-height: 0;
  gap: 8px;
}

.graph-y-axis {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-size: 11px;
  color: var(--muted-text);
  text-align: right;
  padding: 4px 0;
  flex-shrink: 0;
  min-width: 50px;
}

.graph-y-label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 11px;
  color: var(--muted-text);
  text-align: center;
  flex-shrink: 0;
}

.graph-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.graph-bars-wrapper {
  flex: 1;
  overflow-x: auto;
  overflow-y: hidden;
  min-height: 0;
  scrollbar-gutter: stable;
}

.graph-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 100%;
  min-height: 100px;
  width: max-content;
  padding-bottom: 4px;
}

.graph-line {
  width: 100%;
  height: 100%;
  display: block;
}

.graph-line polyline {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.graph-line .line-primary {
  stroke: var(--accent);
}

.graph-line .line-secondary {
  stroke: #94a3b8;
  stroke-dasharray: 6 4;
}

.graph-legend-color.secondary {
  background: #94a3b8;
}

.graph-bar {
  width: 8px;
  min-width: 8px;
  background: var(--accent);
  border-radius: 4px 4px 2px 2px;
  flex: 0 0 auto;
}

.graph-bar.interest {
  background: #f59e0b;
}

.graph-bar.balance {
  background: #10b981;
}

.graph-x-axis {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--muted-text);
  padding-top: 4px;
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
}

.graph-x-label {
  font-size: 11px;
  color: var(--muted-text);
  text-align: center;
  margin-top: 4px;
  flex-shrink: 0;
}