:root {
  --font-ui: "Merriweather Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-prose: "Merriweather", Georgia, "Times New Roman", serif;

  --brand-orange: #f4623a;
  --brand-orange-dark: #c34e2e;
  --brand-green: #3e8e7e;
  --brand-green-light: #7cd1b8;
  --brand-yellow: #fabb51;
  --brand-yellow-light: #faedc6;

  --surface-1: #ffffff;
  --page-plane: #f7f5f2;
  --text-primary: #222222;
  --text-secondary: #5c5a54;
  --text-muted: #8a8880;
  --gridline: #e6e3dc;
  --baseline: #c9c6bc;
  --border: rgba(34, 34, 34, 0.10);

  --series-1: #f4623a; /* orange (brand) */
  --series-2: #3e8e7e; /* gruen (brand) */
  --series-3: #fabb51; /* gelb (brand) */
  --series-4: #2a6f97; /* blau */
  --series-5: #7cd1b8; /* hellgruen (brand) */
  --series-6: #df73db; /* pink (brand) */
  --series-7: #c34e2e; /* rostrot (brand) */
  --series-8: #6c757d; /* grau */

  --good: #3e8e7e;
  --critical: #dc3545;
  --warning-bg: #faedc6;
  --warning-text: #7a5200;
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface-1: #201f1c;
    --page-plane: #161513;
    --text-primary: #f5f3ef;
    --text-secondary: #c9c6bc;
    --text-muted: #948f84;
    --gridline: #35332e;
    --baseline: #454138;
    --border: rgba(255, 255, 255, 0.10);

    --series-1: #f97b56;
    --series-2: #5aab9b;
    --series-3: #fabb51;
    --series-4: #4d92bd;
    --series-5: #7cd1b8;
    --series-6: #e691e3;
    --series-7: #d97354;
    --series-8: #9a9ea1;

    --good: #5aab9b;
    --critical: #e66767;
    --warning-bg: #3a2f0d;
    --warning-text: #f0d27a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page-plane);
  color: var(--text-primary);
  font-family: var(--font-ui);
  line-height: 1.55;
}

.page {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.app-header h1 {
  margin: 0 0 6px;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
}

.subtitle {
  font-family: var(--font-prose);
  color: var(--text-secondary);
  margin: 0 0 20px;
}

.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 20px 24px;
  margin-bottom: 20px;
  box-shadow: 0 1px 2px rgba(34, 34, 34, 0.04), 0 4px 16px rgba(34, 34, 34, 0.04);
}

.step h2 {
  margin-top: 0;
  font-size: 1.2rem;
  font-weight: 700;
}

.hint {
  font-family: var(--font-prose);
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: -4px;
}

.hint ul {
  margin: 6px 0 0;
  padding-left: 18px;
}

.hint li {
  margin-bottom: 2px;
}

.upload-row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

/* Alternative zum eigenen Upload, optisch vom Upload abgesetzt. */
.sample-box {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 11px 24px;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary {
  background: var(--brand-orange);
  color: white;
}

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

.btn-secondary {
  background: transparent;
  color: var(--brand-orange);
  border: 1.5px solid var(--brand-orange);
  padding: 9.5px 22px;
}

.btn-secondary:hover {
  background: var(--brand-orange);
  color: white;
}

.help-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-left: 6px;
  padding: 0;
  border: 1.5px solid var(--brand-orange);
  border-radius: 50%;
  background: transparent;
  color: var(--brand-orange);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  vertical-align: middle;
}

.help-btn:hover {
  background: var(--brand-orange);
  color: white;
}

.guide-steps {
  margin: 8px 0 0;
  padding-left: 20px;
  font-family: var(--font-prose);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.guide-steps li {
  margin-bottom: 10px;
}

.btn:disabled {
  cursor: default;
  opacity: 0.85;
}

.btn-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: 8px;
  vertical-align: -2px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: btn-spinner-rotate 0.6s linear infinite;
}

@keyframes btn-spinner-rotate {
  to { transform: rotate(360deg); }
}

.field-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 2px;
}

.example-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.example-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.example-card-title {
  font-weight: 700;
}

.example-card-list {
  margin: 0;
  padding-left: 18px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.example-card-list li {
  margin-bottom: 2px;
}

.example-card-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.example-empty-note {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.mapping-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.mapping-grid label, .tariff-box label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

select, input[type="number"], .scenario-location-search input {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--text-primary);
}

select:focus, input[type="number"]:focus, .scenario-location-search input:focus {
  outline: 2px solid var(--brand-orange);
  outline-offset: 1px;
}

/* Keine Hoch-/Runter-Pfeile in Zahlenfeldern: Werte werden getippt, nicht geklickt. */
input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 16px;
}

.preview-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.82rem;
  white-space: nowrap;
}

.preview-table th, .preview-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--gridline);
  text-align: left;
}

.preview-table th {
  color: var(--text-secondary);
  font-weight: 600;
  background: var(--page-plane);
}

.warnings {
  background: var(--warning-bg);
  color: var(--warning-text);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.85rem;
  margin-bottom: 14px;
}

.warnings ul { margin: 4px 0 0; padding-left: 18px; }

.import-summary {
  padding: 20px 24px;
  background: var(--page-plane);
  border-radius: 1rem;
}

.donate-highlight {
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand-green);
  background: var(--page-plane);
  border-radius: 1rem;
  padding: 20px 24px;
  margin: 28px 0;
}

.donate-highlight h3 {
  margin-top: 0;
}

.summary-hero {
  text-align: center;
  padding-bottom: 16px;
}

.summary-hero-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.summary-hero-value {
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--brand-orange);
  margin-top: 4px;
}

.summary-hero-meta {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

.summary-check-hint {
  font-family: var(--font-prose);
  font-size: 0.9rem;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin: 0;
}

#summary-scenario-details {
  font-family: var(--font-prose);
  font-size: 0.9rem;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 12px;
}

#summary-scenario-details ul {
  margin: 6px 0 0;
  padding-left: 18px;
}

#summary-scenario-details li {
  margin-bottom: 2px;
}

#summary-warnings:not(:empty) {
  margin-top: 12px;
}

#summary-warnings ul {
  margin: 0;
  padding-left: 18px;
  font-size: 0.85rem;
  color: var(--warning-text);
}

.tariff-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 14px;
}

.tariff-box {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tariff-box legend {
  font-weight: 700;
  padding: 0 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.tariff-name-input {
  font: inherit;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-primary);
  padding: 2px 4px;
  border-radius: 4px;
  flex: 1;
  min-width: 0;
}

.tariff-name-input:hover, .tariff-name-input:focus {
  background: var(--page-plane);
  outline: none;
}

.tariff-name-input[aria-invalid="true"] {
  box-shadow: inset 0 -2px 0 var(--critical);
}

.field-error {
  margin: -6px 0 0;
  font-size: 0.8rem;
  color: var(--critical);
}

.field-hint {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-muted);
}

.tariff-box input[readonly] {
  background: var(--page-plane);
  color: var(--text-muted);
}

.tariff-preview {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.btn-link {
  align-self: flex-start;
  border: none;
  background: transparent;
  padding: 0;
  color: var(--brand-orange);
  text-align: left;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.btn-link:hover {
  text-decoration: underline;
}

.tariff-estimate {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border-radius: 8px;
  background: var(--page-plane);
}

.tariff-estimate .btn {
  align-self: flex-start;
}

.tariff-inline-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.tariff-inline-check input {
  accent-color: var(--brand-orange);
}

.tariff-aufschlag-sum {
  margin: -4px 0 0;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Einzelwerte liegen innerhalb von "Genauer berechnen" -- abgesetzt durch Linie statt
   weiterer Hintergrundfläche, damit die Verschachtelung ruhig bleibt. */
.tariff-parts {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}

.tariff-detail-title {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 600;
}

.stat-breakdown {
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.btn-remove-tariff {
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 4px;
}

.btn-remove-tariff:hover {
  background: var(--warning-bg);
  color: var(--critical);
}

.tariff-actions {
  margin-bottom: 18px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.stat-tile {
  background: var(--page-plane);
  border-radius: 12px;
  padding: 14px 16px;
}

.tariff-pick {
  display: block;
  width: 100%;
  border: 2px solid transparent;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.tariff-pick:hover {
  border-color: var(--border);
}

.tariff-pick.selected {
  border-color: var(--brand-orange);
}

.tariff-pick {
  position: relative;
}

.pick-badge {
  display: none;
  position: absolute;
  top: 8px;
  right: 10px;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--brand-orange);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
}

.tariff-pick.selected .pick-badge {
  display: inline-block;
}

.pair-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 8px 0 4px;
}

.pair-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 2px solid;
  border-radius: 999px;
  background: var(--page-plane);
}

.pair-chip-name {
  font-weight: 700;
}

.pair-chip-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.pair-vs {
  font-weight: 700;
  color: var(--text-muted);
}

.pair-banner-hint {
  margin-top: 2px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 4px;
}

.stat-delta {
  font-size: 0.85rem;
  margin-top: 2px;
  color: var(--text-secondary);
}

.positive { color: var(--good); }
.negative { color: var(--critical); }

.result-block {
  margin: 28px 0;
}

.pair-subhead {
  margin: 22px 0 2px;
  font-size: 0.95rem;
}

/* Paar-/Tagescharts haben höchstens 24 bzw. 13 Kategorien und liegen nicht in einem
   Scroll-Container -- sie passen sich der Breite an, statt die 480-px-Mindestbreite zu erben. */
.chart-canvas-wrap.pair-chart {
  min-width: 0;
  width: 100%;
  height: 240px;
}

.result-block h3 {
  margin-bottom: 4px;
  font-size: 1rem;
}

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

.chart-header h3 {
  margin-bottom: 0;
}

.granularity-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.granularity-btn {
  border: none;
  background: var(--surface-1);
  color: var(--text-secondary);
  padding: 6px 16px;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}

.granularity-btn + .granularity-btn {
  border-left: 1px solid var(--border);
}

.granularity-btn.active {
  background: var(--series-1);
  color: white;
}

.month-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 10px 0;
}

.month-tabs[hidden] {
  display: none;
}

/* Tagesverlauf im Erlös-Chart: Tag blättern, zurück zum Monat, Auflösung 15 Min/Stunde. */
.chart-day-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 10px 0;
}

.chart-day-nav[hidden] {
  display: none;
}

.chart-day-nav .granularity-toggle {
  margin-left: auto;
}

.month-tab-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.month-tab-btn {
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  cursor: pointer;
}

.month-tab-btn:hover:not(.active) {
  background: var(--page-plane);
}

.month-tab-btn.active {
  background: var(--series-1);
  color: white;
  border-color: var(--series-1);
}

.chart-legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

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

/* Klickbarer Legenden-Eintrag (Reihe ein-/ausblenden). */
.legend-toggle {
  border: none;
  background: none;
  padding: 2px 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.legend-toggle:hover {
  color: var(--text-primary);
}

.legend-toggle.is-off {
  opacity: 0.4;
  text-decoration: line-through;
}

.legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  display: inline-block;
}

/* Linien-Reihe (Börsenpreis) in der Legende: Strich statt Fläche. */
.legend-line {
  width: 14px;
  height: 2px;
  display: inline-block;
}

.chart-canvas-wrap {
  position: relative;
  min-width: 480px;
}

/* Erlös-Chart passt sich der Breite an (Balken werden schmaler) statt seitlich zu scrollen. */
.chart-canvas-wrap.fit-chart {
  min-width: 0;
  width: 100%;
  height: 320px;
}

.chart-canvas-wrap.fit-chart.soc-chart {
  height: 220px;
}

/* .field-hint setzt display und würde sonst das hidden-Attribut überstimmen. */
.field-hint[hidden] {
  display: none;
}

.error-banner {
  background: var(--warning-bg);
  color: var(--critical);
  border: 1px solid var(--critical);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.9rem;
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(560px, calc(100% - 32px));
  z-index: 1100;
  box-shadow: 0 4px 16px rgba(34, 34, 34, 0.15);
}

.entry-choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.entry-choice-btn {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-start;
  text-align: left;
  background: var(--page-plane);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  cursor: pointer;
  font-family: var(--font-ui);
  color: var(--text-primary);
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.entry-choice-btn:hover {
  border-color: var(--brand-orange);
  background: var(--surface-1);
}

.entry-choice-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.entry-choice-btn:disabled:hover {
  border-color: var(--border);
  background: var(--page-plane);
}

.entry-choice-note {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--brand-orange-dark);
}

.agb-box {
  background: var(--page-plane);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 16px;
}

.agb-heading {
  margin: 0 0 6px;
  font-size: 0.95rem;
  font-weight: 700;
}

.agb-consent-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
}

.agb-consent-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--brand-orange);
}

.entry-choice-btn strong {
  font-size: 1rem;
}

.entry-choice-btn span {
  font-family: var(--font-prose);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.btn-back {
  display: inline-block;
  background: none;
  border: none;
  color: var(--brand-orange);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  margin-bottom: 12px;
}

.btn-back:hover {
  text-decoration: underline;
}


/* ---------- Einspeise-Checker ---------- */

/* Netto-Hinweis im Tarif-Schritt deutlich absetzen -- alle Eingaben und Ergebnisse sind netto. */
.netto-note {
  border-left: 4px solid var(--brand-orange);
  padding: 8px 12px;
  background: var(--page-plane);
  border-radius: 4px;
}

.source-note {
  margin: 0 0 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.tariff-check .field-hint {
  display: block;
}

.mapping-grid label.is-disabled {
  opacity: 0.5;
}

.upload-row input[type="file"]:disabled {
  opacity: 0.5;
}