:root {
  --bg: #f6f8fb;
  --panel: #ffffff;
  --panel-2: #ffffff;
  --line: #dbe1ea;
  --text: #1f2633;
  --muted: #5f6775;
  --accent: #e3223a;
  --accent-strong: #b8172b;
  --good: #0b8f6a;
  --warn: #b77400;
  --bad: #c62828;
  --shadow: 0 10px 26px rgba(28, 39, 58, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Manrope, "Space Grotesk", "Segoe UI", sans-serif;
  background: var(--bg);
  min-height: 100vh;
}

.bg-glow {
  display: none;
}

.bg-glow-a {
  width: 340px;
  height: 340px;
  left: -80px;
  top: -40px;
  background: #f2556f;
}

.bg-glow-b {
  width: 280px;
  height: 280px;
  right: -50px;
  top: 120px;
  background: #ff7d92;
}

.page {
  width: min(1120px, calc(100% - 2rem));
  margin: 2rem auto 3rem;
  display: grid;
  gap: 1rem;
}

.hero {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.4rem 1.2rem;
  box-shadow: var(--shadow);
}

.brand-lockup {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 0 0 0.85rem;
}

.brand-logo {
  width: auto;
  height: 72px;
  max-width: 100%;
  display: block;
}

.brand-logo-secondary {
  width: auto;
  height: 72px;
  max-width: 100%;
  display: block;
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.74rem;
  color: var(--accent);
  font-family: "Space Grotesk", Manrope, sans-serif;
}

h1 {
  margin: 0.45rem 0 0.55rem;
  font-family: "Space Grotesk", Manrope, sans-serif;
  font-size: clamp(1.45rem, 2.2vw, 2rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  max-width: 80ch;
}

.tool-switch {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.tool-card {
  display: grid;
  gap: 0.2rem;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--line);
  background: #ffffff;
  border-radius: 12px;
  padding: 0.7rem 0.85rem;
  min-height: 78px;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.tool-card strong {
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}

.tool-card span {
  font-size: 0.77rem;
  color: var(--muted);
}

.tool-card:hover {
  transform: translateY(-1px);
  border-color: #e3223a;
}

.tool-card.active {
  border-color: #e3223a;
  background: #fff2f4;
}

.one-tool-card {
  grid-column: 1 / -1;
}

.tool-switch.single-tool {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tool-tab-btn {
  text-align: left;
  width: 100%;
  min-height: 78px;
}

.tool-module {
  display: block;
}

.embedded-tool-frame {
  width: 100%;
  min-height: 1900px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #ffffff;
}

.api-status {
  margin-top: 0.9rem;
  display: inline-block;
  font-size: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.38rem 0.72rem;
  color: var(--muted);
}

.api-status.ok {
  color: var(--good);
  border-color: #97dac7;
}

.api-status.fail {
  color: var(--bad);
  border-color: #f2b7b7;
}

.panel {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 1rem;
}

.panel h2 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.subsection {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.95rem;
  background: #ffffff;
}

.subsection h2 {
  margin: 0 0 0.8rem;
  font-size: 0.98rem;
}

.subsection .note {
  margin-bottom: 0.8rem;
}

.subsection .grid:last-child {
  margin-bottom: 0;
}

.energy-inputs .grid.two,
.energy-inputs .grid.three {
  align-items: start;
}

.energy-inputs .field > span {
  min-height: 2.2rem;
}

.energy-inputs .hint {
  min-height: 1.1rem;
}

#heatingHint {
  min-height: 2.2rem;
}

.grid {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 0.45rem;
  align-content: start;
}

.field span {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.2rem;
  color: var(--muted);
  font-size: 0.84rem;
}

.grid.three .field > span {
  min-height: 2.2rem;
}

.grid.three .field .hint {
  min-height: 1.1rem;
}

.field input:not([type="checkbox"]):not([type="radio"]),
.field select {
  width: 100%;
  height: 42px;
  padding: 0.56rem 0.72rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #ffffff;
  color: #1f2633;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input,
select,
textarea {
  font: inherit;
  color: var(--text);
  font-weight: 500;
  -webkit-text-fill-color: var(--text);
  opacity: 1;
}

input::placeholder,
textarea::placeholder {
  color: #6f7786;
  opacity: 1;
}

.field input:not([type="checkbox"]):not([type="radio"]):focus,
.field select:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 3px rgba(227, 34, 58, 0.12);
}

.field input:not([type="checkbox"]):not([type="radio"]).invalid {
  border-color: var(--bad);
  box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.12);
}

/* Komponenten-Grid: 2-Spalten, einheitliche Höhe pro Reihe */
.component-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 1rem 0;
}

.load-pair-grid {
  align-items: start;
}

.load-pair-grid > fieldset {
  height: auto;
  align-self: start;
}

/* Fieldset Styling */
fieldset {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin: 0;
  background: #ffffff;
}

fieldset legend {
  display: block;
  padding: 0 0.3rem;
  margin-bottom: 0.6rem;
  font-weight: 600;
  color: var(--text);
  font-size: 0.95rem;
}

/* Toggle/Radio Button Styling */
.toggle {
  align-content: end;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.toggle input[type="radio"],
.toggle input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  margin: 0;
}

.toggle input[type="checkbox"] {
  accent-color: var(--accent);
}

.component-grid fieldset.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(227, 34, 58, 0.1);
}

.toggle span {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  cursor: pointer;
  user-select: none;
}

/* Component Fields - Disabled State */
.pvFields,
.storageFields,
.heatPumpFields,
.evFields,
.largeLoadFields {
  transition: opacity 0.2s ease;
  margin-top: 0.8rem;
}

.pvFields.disabled,
.storageFields.disabled,
.heatPumpFields.disabled,
.evFields.disabled,
.largeLoadFields.disabled {
  opacity: 0.45;
  pointer-events: none;
}

.pvFields.disabled input,
.storageFields.disabled input,
.heatPumpFields.disabled input,
.evFields.disabled input,
.largeLoadFields.disabled input {
  background-color: #eef1f5;
  color: #8a92a0;
  -webkit-text-fill-color: #8a92a0;
  cursor: not-allowed;
}

.pvFields.disabled select,
.storageFields.disabled select,
.heatPumpFields.disabled select,
.evFields.disabled select,
.largeLoadFields.disabled select,
.pvFields.disabled button,
.storageFields.disabled button,
.heatPumpFields.disabled button,
.evFields.disabled button,
.largeLoadFields.disabled button {
  background-color: #eef1f5;
  color: #8a92a0;
  border-color: #d3d9e3;
  cursor: not-allowed;
}

.actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.6rem;
}

button:not(.info-btn) {
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
  height: 42px;
  padding: 0.56rem 0.9rem;
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.actions > button {
  flex: 1;
}

#calcBtn {
  min-height: 0;
  color: #ffffff;
  background: #e3223a;
  border-color: transparent;
  font-weight: 800;
  letter-spacing: 0.01em;
}

#calcBtn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.ghost {
  min-width: 0;
  color: var(--text);
  background: #ffffff;
  border-color: var(--line);
}

.secondary {
  min-width: 0;
  color: var(--text);
  background: #ffffff;
  border-color: var(--line);
}

.ghost:disabled {
  color: #9ca6b7;
  border-color: #d5dbe5;
}

.ev-vehicles,
.large-loads {
  display: grid;
  gap: 0.8rem;
}

.ev-vehicle,
.large-load {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem;
  background: #f8fafc;
}

.ev-vehicle-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.7rem;
}

.ev-vehicle-title,
.large-load-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}

.ev-toolbar {
  margin-top: 0.8rem;
  display: flex;
  justify-content: flex-start;
}

.ev-toolbar .ghost,
.ev-vehicle-head .ghost {
  min-width: 0;
}

.error {
  margin: 0.8rem 0 0;
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  border: 1px solid #f2b7b7;
  color: var(--bad);
  background: #fff6f6;
}

.success {
  margin: 0.8rem 0 0;
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  border: 1px solid #97dac7;
  color: var(--good);
  background: #f3fffb;
}

.hidden {
  display: none !important;
}

/* ─── Info-Button ────────────────────────────────────────── */
.info-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.05rem;
  height: 1.05rem;
  min-height: 0;
  padding: 0;
  margin-left: 0.18rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: transparent;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  opacity: 0.65;
  vertical-align: text-top;
  transition: opacity 0.15s;
}
.info-btn:hover { opacity: 1; }

legend .info-btn,
h3 .info-btn,
th .info-btn,
.field > span .info-btn,
.meta-grid span .info-btn,
.market-ticker-stats span .info-btn {
  transform: translateY(-1px);
}

/* ─── Modal Overlay ──────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(25, 32, 45, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(5px);
  animation: fadeIn 0.15s ease;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.modal-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  max-width: 540px;
  width: 90%;
  max-height: 82vh;
  overflow-y: auto;
  padding: 1.8rem;
  box-shadow: var(--shadow);
  animation: slideUp 0.18s ease;
}
@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.1rem;
}
.modal-header h3 {
  margin: 0;
  color: var(--accent);
  font-size: 1.05rem;
}
.modal-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  transition: color 0.15s;
}
.modal-close:hover { color: var(--text); }
.modal-body {
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.92rem;
}
.modal-body strong { color: var(--text); }
.modal-body .formula {
  background: #f8fafc;
  border-left: 3px solid var(--accent);
  padding: 0.55rem 0.9rem;
  margin: 0.75rem 0;
  font-family: monospace;
  font-size: 0.88rem;
  border-radius: 0 6px 6px 0;
}
.modal-body ul {
  padding-left: 1.2rem;
  margin: 0.5rem 0;
}
.modal-body li { margin-bottom: 0.3rem; }

.cards {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem;
  background: #fffefe;
}

.card h3 {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}

.card p {
  margin: 0.45rem 0 0;
  font-size: 1.1rem;
  font-weight: 800;
}

.market-ticker {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem;
  background: #ffffff;
}

.market-ticker-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.market-ticker-head h3 {
  margin: 0;
  font-size: 0.92rem;
  color: #263042;
}

.market-ticker-controls {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.market-ticker-controls label {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.market-ticker-stats {
  margin-top: 0.7rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.6rem;
}

.market-ticker-stats p {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem 0.65rem;
  display: grid;
  gap: 0.2rem;
  background: #fffefe;
}

.market-ticker-stats span {
  font-size: 0.74rem;
  color: var(--muted);
}

.market-ticker-stats strong {
  font-size: 1rem;
  color: #1f2937;
}

.market-ticker-stats strong.trend-up {
  color: #0b8f6a;
}

.market-ticker-stats strong.trend-down {
  color: #e3223a;
}

.market-ticker-stats strong.trend-flat {
  color: #475569;
}

.meta-grid {
  margin-top: 0.9rem;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.meta-grid div {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem;
  background: #fffefe;
  display: grid;
  gap: 0.3rem;
}

.meta-grid span {
  color: var(--muted);
  font-size: 0.78rem;
}

.meta-grid strong {
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.table-wrap {
  margin-top: 1rem;
}

.note {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.hint {
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.quality-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.74rem;
  min-width: 2rem;
  padding: 0.18rem 0.5rem;
  margin-left: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
}

.quality-badge.verygood { color: var(--good); border-color: #e3223a; }
.quality-badge.good { color: var(--good); border-color: #97dac7; }
.quality-badge.medium { color: var(--warn); border-color: #f3d29c; }
.quality-badge.bad { color: var(--bad); border-color: #f2b7b7; }
.quality-badge.verybad { color: var(--bad); border-color: #f2b7b7; }

.table-wrap h3 {
  margin: 0 0 0.55rem;
  font-size: 0.92rem;
  color: #263042;
}

table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

th,
td {
  padding: 0.6rem;
  border-bottom: 1px solid #e4e9f0;
  text-align: left;
  font-size: 0.86rem;
}

th {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #2f3a4c;
  background: #f4f7fb;
}

tr.best {
  background: #ffeef1;
}

.note-box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem 1rem;
  background: #f8fafc;
}

.note-box small {
  color: #475569;
  line-height: 1.45;
}

.full-span {
  grid-column: 1 / -1;
}

#scenarioTable td.good {
  color: var(--good);
  font-weight: 600;
}

#scenarioTable td.bad {
  color: var(--bad);
  font-weight: 600;
}

td.good {
  color: var(--good);
  font-weight: 600;
}

td.bad {
  color: var(--bad);
  font-weight: 600;
}

.charts {
  margin-top: 1rem;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.chart-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem;
  background: #ffffff;
}

.chart-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.88rem;
  color: #2f3a4c;
}

.chart-card canvas {
  display: block;
  width: 100% !important;
  height: 260px !important;
}

.transparency-list {
  display: grid;
  gap: 0.5rem;
}

.transparency-item {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #ffffff;
  padding: 0.7rem;
}

.transparency-top {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.3rem;
}

.status {
  padding: 0.16rem 0.42rem;
  border-radius: 999px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: 1px solid var(--line);
}

.status.official {
  color: var(--good);
}

.status.modeled {
  color: var(--warn);
}

.status.measured {
  color: var(--accent);
}

.transparency-item p {
  margin: 0.2rem 0;
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 980px) {
  .grid.four,
  .grid.three,
  .cards,
  .meta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .brand-logo,
  .brand-logo-secondary {
    height: 56px;
  }

  .page {
    width: calc(100% - 1rem);
    margin-top: 1rem;
  }

  .grid.two,
  .grid.three,
  .grid.four,
  .cards,
  .meta-grid,
  .tool-switch,
  .charts,
  .component-grid,
  .load-pair-grid {
    grid-template-columns: 1fr;
  }

  .actions {
    flex-direction: column;
  }

  .market-ticker-stats {
    grid-template-columns: 1fr;
  }

  .chart-card canvas {
    height: 220px !important;
  }

  .ghost {
    min-width: 0;
  }
}