:root {
  color-scheme: light;
  --surface-1: #fcfcfb;
  --surface-2: #f9f9f7;
  --surface-3: #f2f1ed;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --gridline: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --good: #0ca30c;
  --critical: #d03b3b;
  --warning: #fab219;

  --series-1: #2a78d6; /* Konfiguration A */
  --series-2: #eb6834; /* Konfiguration B */
  --series-3: #1baf7a; /* Konfiguration C */
  --series-4: #eda100; /* Konfiguration D */
  --series-5: #e87ba4; /* Konfiguration E */
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme='light'])) {
    color-scheme: dark;
    --surface-1: #1a1a19;
    --surface-2: #0d0d0d;
    --surface-3: #232322;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.1);
    --good: #0ca30c;
    --critical: #e66767;
    --warning: #fab219;

    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
  }
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --surface-1: #1a1a19;
  --surface-2: #0d0d0d;
  --surface-3: #232322;
  --text-primary: #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted: #898781;
  --gridline: #2c2c2a;
  --baseline: #383835;
  --border: rgba(255, 255, 255, 0.1);
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--surface-2);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.app-header h1 {
  font-size: 1.6rem;
  margin: 0 0 4px;
}

.app-subtitle {
  color: var(--text-secondary);
  margin: 0 0 20px;
  max-width: 68ch;
  line-height: 1.5;
}

.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(11, 11, 11, 0.04);
}

.gesamtsumme-card .field {
  max-width: 320px;
}

.field {
  display: block;
  margin-bottom: 4px;
}

.field-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.field-input-group {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  overflow: hidden;
}

.field-input-group input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 9px 10px;
  font-size: 0.95rem;
  color: var(--text-primary);
  min-width: 0;
}

.field-input-group input:focus {
  outline: 2px solid var(--series-1);
  outline-offset: -2px;
}

.field-suffix {
  padding: 0 10px;
  color: var(--text-muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

select {
  width: 100%;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.field-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 4px 0 0;
}

.btn {
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 0.88rem;
  cursor: pointer;
  font-weight: 600;
}

.btn-primary {
  background: var(--series-1);
  color: #fff;
}

.btn-secondary {
  background: var(--surface-3);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 6px 10px;
  font-size: 0.8rem;
}

.btn-ghost:hover,
.btn-secondary:hover {
  background: var(--surface-3);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.sets-save-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.sets-save-row input[type='text'] {
  flex: 1;
  min-width: 220px;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.sets-list {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sets-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--surface-2);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.85rem;
}

.sets-list-name {
  font-weight: 600;
  flex: 1;
  min-width: 100px;
}

.sets-list-meta {
  color: var(--text-muted);
  font-size: 0.76rem;
}

.sets-list-actions {
  display: flex;
  gap: 6px;
}

.sets-empty {
  color: var(--text-muted);
  font-size: 0.82rem;
  list-style: none;
  padding: 4px 0;
}

.konfigurationen-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.konfiguration-card {
  border-left: 4px solid var(--konfiguration-color, var(--series-1));
}

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

.konfiguration-name {
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--text-primary);
  padding: 4px 6px;
  border-radius: 6px;
  min-width: 120px;
}

.konfiguration-name:focus {
  outline: 2px solid var(--series-1);
  background: var(--surface-2);
}

.konfiguration-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.konfiguration-summe-abgleich {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface-3);
  color: var(--text-secondary);
}

.konfiguration-summe-abgleich.ok {
  color: var(--good);
}

.konfiguration-summe-abgleich.warn {
  color: var(--critical);
}

#save-set-feedback.ok {
  color: var(--good);
}

#save-set-feedback.warn {
  color: var(--critical);
}

.kredite-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.kredit-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}

.kredit-card-header {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}

.kredit-name {
  flex: 1;
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  background: transparent;
  color: var(--text-primary);
  padding: 4px 6px;
  border-radius: 6px;
  min-width: 0;
}

.kredit-name:focus {
  outline: 2px solid var(--series-1);
  background: var(--surface-1);
}

.kredit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.kredit-tilgungsfrei-feld.is-locked input {
  color: var(--text-muted);
}

.kredit-ergebnis {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 6px 12px;
}

.kredit-ergebnis strong {
  color: var(--text-primary);
  display: block;
  font-size: 0.92rem;
}

.add-kredit-row,
.add-konfiguration-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.konfiguration-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
  margin-top: 4px;
}

.summary-tile {
  background: var(--surface-2);
  border-radius: 8px;
  padding: 10px 12px;
}

.summary-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.summary-value {
  font-size: 1.05rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.tilgungsplan-details {
  margin-top: 14px;
}

.tilgungsplan-details summary {
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.table-scroll {
  overflow-x: auto;
  margin-top: 8px;
}

.table-scroll-tall {
  max-height: 420px;
  overflow-y: auto;
}

.table-scroll-tall thead th {
  position: sticky;
  top: 0;
  background: var(--surface-1);
}

.tilgungsplan-toggle {
  display: inline-flex;
  gap: 4px;
  margin: 10px 0;
  background: var(--surface-2);
  border-radius: 8px;
  padding: 3px;
}

.view-toggle-btn {
  border: none;
  padding: 5px 12px;
}

.view-toggle-btn.is-active {
  background: var(--surface-1);
  color: var(--text-primary);
  box-shadow: 0 1px 2px rgba(11, 11, 11, 0.08);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.data-table th,
.data-table td {
  padding: 7px 10px;
  text-align: right;
  border-bottom: 1px solid var(--gridline);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.data-table th:first-child,
.data-table td:first-child {
  text-align: left;
  white-space: normal;
}

.data-table thead th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.vergleich-section h2 {
  margin-top: 0;
}

.vergleich-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 760px) {
  .vergleich-grid {
    grid-template-columns: 1fr;
  }
  .kredit-grid {
    grid-template-columns: 1fr;
  }
}

.vergleich-grid h3 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0 0 8px;
}

.chart-wrapper {
  position: relative;
}

.chart-svg {
  display: block;
  width: 100%;
  height: auto;
}

.chart-gridline {
  stroke: var(--gridline);
  stroke-width: 1;
}

.chart-baseline {
  stroke: var(--baseline);
  stroke-width: 1;
}

.chart-axis-label {
  fill: var(--text-muted);
  font-size: 10px;
}

.chart-crosshair {
  stroke: var(--baseline);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}

.chart-overlay {
  cursor: crosshair;
}

.chart-tooltip {
  position: absolute;
  top: 8px;
  transform: translateX(-50%);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.76rem;
  box-shadow: 0 4px 12px rgba(11, 11, 11, 0.12);
  pointer-events: none;
  min-width: 170px;
  z-index: 2;
}

.chart-tooltip-header {
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.chart-tooltip-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 1px 0;
}

.chart-tooltip-swatch,
.chart-legend-swatch,
.bar-chart-fill {
  display: inline-block;
}

.chart-tooltip-swatch {
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

.chart-tooltip-label {
  flex: 1;
  color: var(--text-secondary);
}

.chart-tooltip-value {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

.chart-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.chart-legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
}

.chart-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 24px 0;
  text-align: center;
}

.bar-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bar-chart-row {
  display: grid;
  grid-template-columns: 110px 1fr 80px;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
}

.bar-chart-label {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-chart-track {
  background: var(--surface-3);
  border-radius: 5px;
  height: 14px;
  overflow: hidden;
}

.bar-chart-fill {
  height: 100%;
  border-radius: 5px 0 0 5px;
}

.bar-chart-value {
  text-align: right;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.app-footer {
  margin-top: 24px;
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 1.5;
  max-width: 76ch;
}