.fuel-calc-page {
  --fuel-navy: #10283f;
  --fuel-ocean: #247c9c;
  --fuel-line: rgba(16, 40, 63, 0.14);
}

.fuel-hero .about-hero-row {
  align-items: end;
  gap: 28px;
}

.fuel-hero h1 {
  max-width: 14ch;
  color: #fff;
  font-family: Fraunces, Georgia, serif;
  font-weight: 500;
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: -0.04em;
}

.fuel-hero #fuel-calc-hero-text {
  max-width: 38ch;
  color: rgba(255, 255, 255, 0.88);
}

.fuel-board {
  padding: 64px 0 24px;
}

.fuel-board-stack {
  display: grid;
  gap: 36px;
}

.fuel-intro h2 {
  margin: 8px 0 16px;
  font-family: Fraunces, Georgia, serif;
  font-weight: 500;
  font-size: clamp(2rem, 3.5vw, 2.8rem);
}

.fuel-link-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 0;
}

.fuel-link-card {
  display: grid;
  gap: 12px;
  padding: 10px 10px 16px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--fuel-line);
  box-shadow: 0 10px 28px rgba(16, 40, 63, 0.08);
  color: var(--fuel-navy);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fuel-link-card:hover,
.fuel-link-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(16, 40, 63, 0.14);
}

.fuel-link-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 12px;
  background: #e4ddd2;
}

.fuel-link-card span {
  padding: 0 6px;
  font-family: Outfit, "Segoe UI", sans-serif;
  font-size: 0.98rem;
  font-weight: 500;
}

/* Calculator card — 2 columns: savings | controls */
.fuel-card {
  width: 100%;
  padding: 28px;
  border: 1px solid var(--fuel-line);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 249, 248, 0.96)),
    radial-gradient(circle at top right, rgba(36, 124, 156, 0.14), transparent 42%);
  box-shadow: 0 18px 44px rgba(16, 40, 63, 0.1);
}

.fuel-card-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 28px;
  align-items: start;
}

.fuel-savings-panel {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.fuel-savings-heading,
.fuel-controls h2 {
  margin: 0 0 8px;
  color: var(--fuel-navy);
  font-family: Fraunces, Georgia, serif;
  font-weight: 500;
  font-size: clamp(1.55rem, 2.4vw, 1.9rem);
}

.fuel-metrics-inline {
  margin: 8px 0 0;
  gap: 12px;
}

.fuel-card h2 {
  margin-bottom: 8px;
  color: var(--fuel-navy);
}

.fuel-controls {
  min-width: 0;
}

.fuel-card-note,
.fine {
  color: #5d6c76;
  font-size: 0.95rem;
}

.fuel-slider-note {
  margin-top: 18px;
  font-style: italic;
}

.fuel-fields {
  display: grid;
  gap: 26px;
  margin-top: 22px;
}

.fuel-collection-field {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}

.fuel-collection-field legend {
  margin-bottom: 10px;
  color: var(--fuel-navy);
  font-size: 0.92rem;
  font-weight: 500;
}

.fuel-collection-btns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.fuel-collection-btn {
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--fuel-line);
  border-radius: 14px;
  background: #fff;
  color: var(--fuel-navy);
  font-family: Outfit, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.fuel-collection-btn:hover,
.fuel-collection-btn:focus-visible {
  border-color: var(--fuel-ocean);
}

.fuel-collection-btn[aria-pressed="true"] {
  background: var(--fuel-navy);
  border-color: var(--fuel-navy);
  color: #fff;
}

.fuel-model-field {
  display: grid;
  gap: 8px;
  color: var(--fuel-navy);
  font-size: 0.92rem;
  font-weight: 500;
}

.fuel-card select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--fuel-line);
  border-radius: 14px;
  background: #fff;
  color: var(--fuel-navy);
}

/* Slider rows */
.fuel-slider-row {
  display: grid;
  gap: 10px;
}

.fuel-slider-row label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  color: var(--fuel-navy);
  font-size: 0.92rem;
  font-weight: 500;
}

.fuel-slider-row output {
  color: var(--fuel-ocean);
  font-family: Fraunces, Georgia, serif;
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.fuel-slider-row input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  margin: 8px 0 0;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--fuel-ocean), var(--fuel-navy));
  cursor: pointer;
}

.fuel-slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 26px;
  height: 26px;
  border: 4px solid #fff;
  border-radius: 50%;
  background: var(--fuel-navy);
  box-shadow: 0 2px 10px rgba(16, 40, 63, 0.38);
}

.fuel-slider-row input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border: 4px solid #fff;
  border-radius: 50%;
  background: var(--fuel-navy);
  box-shadow: 0 2px 10px rgba(16, 40, 63, 0.38);
}

.fuel-slider-row input[type="range"]:focus-visible {
  outline: 3px solid rgba(36, 124, 156, 0.35);
  outline-offset: 4px;
}

.fuel-slider-scale {
  display: flex;
  justify-content: space-between;
  color: #5d6c76;
  font-size: 0.8rem;
}

/* Results */
.fuel-results,
.fuel-method,
.fuel-guarantee {
  padding: 40px 0;
}

.fuel-results-head h2,
.fuel-method h2,
.fuel-guarantee h2,
.fuel-cta h2 {
  margin: 8px 0 12px;
  font-family: Fraunces, Georgia, serif;
  font-weight: 500;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.fuel-metrics {
  display: grid;
  gap: 18px;
  margin: 28px 0;
}

.fuel-savings-hero {
  display: grid;
  gap: 4px;
  padding: 18px 18px 16px;
  border-radius: 18px;
  background: linear-gradient(150deg, var(--fuel-navy), #1b4b63 60%, var(--fuel-ocean));
  color: #fff;
  text-align: left;
}

.fuel-savings-hero span {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
}

.fuel-savings-number {
  display: block;
  font-family: Fraunces, Georgia, serif;
  font-size: clamp(2rem, 4vw, 2.85rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: #fff;
}

.fuel-savings-hero small {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.85rem;
}

.fuel-metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.fuel-metric {
  display: grid;
  gap: 4px;
  align-content: start;
  min-height: 88px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--fuel-line);
  background: #fff;
}

.fuel-metric span {
  color: #5d6c76;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.fuel-metric strong {
  color: var(--fuel-navy);
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

.fuel-metric small {
  color: #5d6c76;
  font-size: 0.85rem;
}

.fuel-metric.is-accent {
  border-color: var(--fuel-ocean);
  background: rgba(36, 124, 156, 0.08);
}

.fuel-metric.is-accent strong {
  color: var(--fuel-ocean);
}

.fuel-metric.is-savings {
  background: var(--fuel-navy);
  border-color: var(--fuel-navy);
}

.fuel-metric.is-savings span,
.fuel-metric.is-savings small {
  color: rgba(255, 255, 255, 0.78);
}

.fuel-metric.is-savings strong {
  color: #fff;
}

.fuel-assumptions {
  margin-top: 28px;
  padding: 24px;
  border: 1px solid var(--fuel-line);
  border-radius: 24px;
  background: #fff;
}

.fuel-assumptions ul {
  display: grid;
  gap: 10px;
  margin: 14px 0;
  padding-left: 1.1rem;
  list-style: disc;
}

.fuel-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.fuel-prose p + p {
  margin-top: 14px;
}

.fuel-guarantee-banner {
  margin-top: 16px;
  padding: 16px 18px;
  border-left: 4px solid #b7791f;
  background: #fff8e8;
  color: #5c4813;
}

.fuel-cta {
  margin: 24px 0 72px;
  padding: 42px 0;
  background:
    linear-gradient(120deg, rgba(16, 40, 63, 0.94), rgba(36, 124, 156, 0.88)),
    url("../images/hero-bg.jpg?v=4") center / cover;
  color: #fff;
}

.fuel-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.fuel-cta .about-kicker,
.fuel-cta h2,
.fuel-cta p {
  color: #fff;
}

.fuel-cta .btn {
  background: #fff;
  color: var(--fuel-navy);
}

#fuel-form-error.is-error,
.form-result.is-error {
  color: #9b1c1c;
}

@media (max-width: 920px) {
  .fuel-card-grid {
    grid-template-columns: 1fr;
  }

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

  .fuel-cta-inner {
    display: grid;
    align-items: start;
  }

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

@media (max-width: 640px) {
  .fuel-board,
  .fuel-results,
  .fuel-method,
  .fuel-guarantee {
    padding-top: 28px;
    padding-bottom: 28px;
  }

  .fuel-link-cards {
    gap: 10px;
  }

  .fuel-link-card {
    padding: 8px 8px 12px;
  }

  .fuel-link-card span {
    font-size: 0.86rem;
  }

  .fuel-card {
    padding: 20px;
  }

  .fuel-collection-btns,
  .fuel-metric-grid {
    grid-template-columns: 1fr;
  }

  .fuel-result-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .fuel-result-actions .btn,
  .fuel-cta .btn {
    width: 100%;
    justify-content: center;
  }
}

@media print {
  .site-header,
  .site-footer,
  .menu-toggle,
  .fuel-cta,
  .fuel-result-actions,
  .enquire {
    display: none !important;
  }

  body {
    background: #fff;
  }
}