/* Calculator · glass/soft · Landing v2 */

#calculator.section--soft {
  background:
    linear-gradient(
      120deg,
      color-mix(in srgb, var(--accent-fill) 16%, transparent) 0%,
      transparent 46%
    ),
    var(--surface-soft);
  overflow: visible;
}

#calculator .container {
  overflow: visible;
}

.calc-shell {
  margin-top: 0.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  align-items: stretch;
}

.calc-panel {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2.25rem);
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.52);
  border: 0;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.58),
    0 10px 36px rgba(22, 24, 26, 0.1);
  -webkit-backdrop-filter: blur(22px) saturate(1.3);
  backdrop-filter: blur(22px) saturate(1.3);
}

.calc-panel--dark {
  background:
    linear-gradient(
      165deg,
      rgba(42, 46, 50, 0.96) 0%,
      rgba(22, 24, 26, 0.98) 100%
    );
  color: var(--cream);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.1),
    0 12px 40px rgba(22, 24, 26, 0.22);
  -webkit-backdrop-filter: blur(24px) saturate(1.25);
  backdrop-filter: blur(24px) saturate(1.25);
}

.calc-panel__label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.calc-panel--dark .calc-panel__label {
  color: rgba(247, 246, 244, 0.54);
}

.seg {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
  padding: 0.25rem;
  border-radius: var(--radius-pill);
  background: rgba(247, 246, 244, 0.62);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.55);
}

.seg__btn {
  min-height: 44px;
  border: 0;
  background: transparent;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 0.8125rem;
  line-height: 1.25;
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  color: var(--ink);
  -webkit-tap-highlight-color: transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.seg__btn.is-active {
  background: var(--ink);
  color: var(--cream);
  box-shadow: 0 4px 14px rgba(22, 24, 26, 0.16);
}

.calc-panel__packages {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1.5rem;
}

.calc-panel__pkg {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: 0;
  border-radius: var(--radius);
  background: rgba(247, 246, 244, 0.72);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 500;
  text-align: left;
  color: var(--ink);
  -webkit-tap-highlight-color: transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.calc-panel__pkg:hover {
  background: rgba(247, 246, 244, 0.92);
}

.calc-panel__pkg.is-active {
  background: color-mix(in srgb, var(--accent-fill) 48%, transparent);
  color: var(--ink);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.62),
    0 6px 20px rgba(22, 24, 26, 0.08);
}

.calc-panel__pkg[data-rec].is-active {
  background: color-mix(in srgb, var(--accent-fill) 62%, transparent);
}

.calc-panel__pkg span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.calc-panel__pkg.is-active span {
  color: var(--accent-deep);
}

.range-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.25rem;
}

.range-row input[type="range"] {
  flex: 1;
  min-width: 0;
  height: 44px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  accent-color: var(--accent-fill);
}

.range-row input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: rgba(22, 24, 26, 0.14);
}

.range-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  margin-top: -8px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.9);
  background: var(--accent-fill);
  box-shadow: 0 2px 10px rgba(22, 24, 26, 0.18);
  cursor: pointer;
}

.range-row input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: rgba(22, 24, 26, 0.14);
}

.range-row input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.9);
  background: var(--accent-fill);
  box-shadow: 0 2px 10px rgba(22, 24, 26, 0.18);
  cursor: pointer;
}

.range-row__num {
  width: 5.5rem;
  min-height: 48px;
  text-align: center;
  border: 1px solid rgba(220, 216, 210, 0.9);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  font-size: 1rem;
  color: var(--ink);
}

.range-row__num:focus {
  outline: 0;
  border-color: var(--accent-mark);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.calc-out {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  height: 100%;
  min-height: 0;
}

.calc-out__main {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
}

.calc-out__label {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(247, 246, 244, 0.54);
  margin: 0;
}

.calc-out__sum {
  font-family: var(--font-mono);
  font-size: clamp(2.25rem, 5vw, 4.125rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--accent-fill);
  margin: 0.75rem 0 0;
  transition: opacity var(--dur) var(--ease);
}

.calc-out__note {
  font-size: 0.875rem;
  color: rgba(247, 246, 244, 0.62);
  margin: 0.875rem 0 0;
  max-width: 44ch;
}

.pay-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin: 1rem 0 0;
  background: transparent;
}

.pay-grid__item {
  padding: 0.875rem 0.875rem;
  background: rgba(247, 246, 244, 0.06);
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 1px rgba(247, 246, 244, 0.1);
}

.pay-grid__item strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  margin-bottom: 0.2rem;
}

.pay-grid__item span {
  font-size: 0.78125rem;
  color: rgba(247, 246, 244, 0.54);
  line-height: 1.35;
}

.calc-out--custom .calc-out__sum {
  display: none;
}

.calc-out .btn {
  margin-top: auto;
  flex-shrink: 0;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .calc-panel {
    background: rgba(247, 246, 244, 0.94);
  }

  .calc-panel--dark {
    background: var(--ink);
  }
}

/* Mobile: compact in-flow layout (no sticky dock) */
@media (max-width: 767.98px) {
  #calculator {
    padding-bottom: calc(var(--space-section) + 0.5rem);
  }

  .calc-shell {
    gap: 0.625rem;
  }

  .calc-panel {
    border-radius: 1.125rem;
    padding: 1.25rem 1.125rem;
  }

  .calc-panel--dark {
    position: static;
    max-height: none;
    overflow: visible;
    border-radius: 1.25rem;
    padding: 1rem 1.125rem;
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, 0.12),
      0 8px 28px rgba(22, 24, 26, 0.2);
  }

  .calc-out {
    gap: 0.875rem;
  }

  .calc-out__sum {
    font-size: clamp(1.875rem, 8vw, 2.5rem);
    margin-top: 0.4rem;
  }

  .calc-out__note {
    font-size: 0.8125rem;
    margin-top: 0.5rem;
  }

  .pay-grid {
    gap: 0.375rem;
    margin-top: 0.75rem;
  }

  .pay-grid__item {
    padding: 0.625rem 0.625rem;
  }

  .pay-grid__item strong {
    font-size: 0.9375rem;
  }

  .seg__btn {
    font-size: 0.75rem;
    padding: 0.5rem 0.5rem;
  }

  .calc-out .btn {
    position: static;
    margin-top: 0.5rem;
    box-shadow: none;
  }
}

@media (min-width: 768px) {
  .calc-shell {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 1rem;
    padding-bottom: 0;
  }

  .calc-panel--dark {
    position: static;
    max-height: none;
    overflow: visible;
    padding: clamp(1.5rem, 3vw, 2.25rem);
  }

  .calc-out .btn {
    position: static;
    box-shadow: none;
  }

  .seg__btn {
    font-size: 0.875rem;
  }
}

@media (min-width: 1024px) {
  .calc-shell {
    gap: 1.125rem;
  }
}