.calc-root {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem;
  font-size: 0.875rem;
}

.calc-loading,
.calc-error {
  margin: 0;
  color: var(--store-muted);
}

.calc-note {
  margin: 0;
  padding: 0.875rem 1rem;
  border: 1px solid color-mix(in srgb, var(--store-accent) 24%, var(--store-border));
  border-radius: calc(var(--store-radius) - 2px);
  background: var(--store-accent-soft);
  color: var(--store-text);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.calc-block {
  padding: 1rem;
  border: 1px solid var(--store-border);
  border-radius: calc(var(--store-radius) - 2px);
  background: var(--store-bg);
}

.calc-block--choices {
  padding: 1.125rem;
  background: var(--store-surface);
}

.calc-block--qty {
  padding: 0;
}

.calc-purchase-bar {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.625rem;
  align-items: stretch;
}

.calc-purchase-bar .calc-block--qty {
  margin: 0;
  display: flex;
  align-items: stretch;
  overflow: hidden;
}

.calc-purchase-bar .calc-input-qty {
  width: 100%;
  min-height: 2.875rem;
  padding: 0.6875rem 0.375rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  text-align: center;
}

.calc-purchase-bar .calc-actions {
  display: flex;
  min-width: 0;
}

.calc-purchase-bar .calc-btn-primary {
  width: 100%;
  min-height: 2.875rem;
}

.calc-block--options.calc-accordion {
  padding: 0;
  overflow: hidden;
}

.calc-options-accordions {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--store-border);
  border-radius: calc(var(--store-radius) - 2px);
  background: var(--store-bg);
  overflow: hidden;
}

.calc-options-accordions > .calc-accordion {
  border: 0;
  border-radius: 0;
  background: transparent;
}

.calc-options-accordions > .calc-accordion + .calc-accordion {
  border-top: 1px solid color-mix(in srgb, var(--store-border) 85%, transparent);
}

.calc-options-accordions > .calc-accordion.is-expanded {
  background: color-mix(in srgb, var(--store-surface) 45%, var(--store-bg));
}

.calc-accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.625rem;
  width: 100%;
  padding: 0.875rem 1rem;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.calc-accordion-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid color-mix(in srgb, var(--store-border) 90%, transparent);
  border-radius: 999px;
  background: var(--store-surface);
  color: var(--store-muted);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.calc-accordion.is-expanded .calc-accordion-num {
  border-color: var(--store-accent);
  background: var(--store-accent);
  color: #fff;
}

.calc-accordion-summary {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  min-width: 0;
  flex: 1;
}

.calc-accordion-label {
  flex-shrink: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--store-text);
}

.calc-accordion-sep {
  flex-shrink: 0;
  color: var(--store-muted);
  font-size: 0.8125rem;
}

.calc-accordion-value {
  min-width: 0;
  overflow: hidden;
  color: var(--store-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calc-accordion-chevron {
  flex-shrink: 0;
  color: var(--store-muted);
  font-size: 0.8125rem;
  transition: transform 0.15s ease;
}

.calc-accordion.is-expanded .calc-accordion-chevron {
  transform: rotate(180deg);
}

.calc-accordion-panel {
  display: none;
  padding: 0.875rem 1rem 1rem;
  border-top: 1px solid color-mix(in srgb, var(--store-border) 70%, transparent);
  background: color-mix(in srgb, var(--store-surface) 35%, var(--store-bg));
}

.calc-accordion.is-expanded .calc-accordion-panel {
  display: block;
}

.calc-accordion-panel .calc-option-title {
  display: none;
}

.calc-section {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.calc-section-title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
}

.calc-panels {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.calc-panel {
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--store-border);
  border-radius: calc(var(--store-radius) - 2px);
  background: var(--store-surface);
}

.calc-panel-title {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--store-text);
}

.calc-panel-row {
  display: grid;
  gap: 0.625rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0;
}

.calc-field-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--store-muted);
}

.calc-input,
.calc-select {
  width: 100%;
  padding: 0.6875rem 0.75rem;
  border: 1px solid var(--store-border);
  border-radius: calc(var(--store-radius) - 4px);
  background: var(--store-surface);
  color: var(--store-text);
  font: inherit;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}

.calc-input:focus,
.calc-select:focus {
  outline: none;
  border-color: var(--store-accent);
  box-shadow: 0 0 0 3px var(--store-accent-soft);
}

.calc-input.is-invalid,
.calc-select.is-invalid {
  border-color: #c24141;
  background: color-mix(in srgb, #fef2f2 65%, var(--store-surface));
  box-shadow: 0 0 0 3px color-mix(in srgb, #c24141 18%, transparent);
}

.calc-input.is-invalid:focus,
.calc-select.is-invalid:focus {
  border-color: #c24141;
  box-shadow: 0 0 0 3px color-mix(in srgb, #c24141 22%, transparent);
}

.calc-panel.is-invalid {
  border-color: color-mix(in srgb, #c24141 55%, var(--store-border));
  box-shadow: 0 0 0 3px color-mix(in srgb, #c24141 12%, transparent);
}

.calc-accordion.is-invalid {
  box-shadow: inset 0 0 0 2px #c24141;
}

.calc-accordion.is-invalid .calc-accordion-trigger {
  color: #9f1239;
}

.calc-accordion.is-invalid .calc-accordion-label,
.calc-accordion.is-invalid .calc-accordion-value {
  color: #9f1239;
}

select.calc-select {
  padding-right: 2rem;
  background-color: var(--store-surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2378716c' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 0.75rem;
  appearance: none;
}

select.calc-select:disabled {
  background-color: var(--store-bg);
  color: var(--store-muted);
  cursor: not-allowed;
  opacity: 0.85;
}

.calc-option {
  margin: 0;
  padding: 0;
  border: 0;
}

.calc-option-title {
  display: block;
  margin: 0 0 0.875rem;
  padding: 0;
  font-size: 0.875rem;
  font-weight: 700;
}

.calc-option--panel-count .calc-option-title {
  margin-bottom: 1rem;
}

.calc-choice-grid {
  display: grid;
  gap: 0.625rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
}

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

.calc-choice-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  margin: 0;
  overflow: hidden;
  border: 1.5px solid var(--store-border);
  border-radius: calc(var(--store-radius) - 2px);
  background: var(--store-surface);
  cursor: pointer;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease,
    background 0.15s ease;
}

.calc-choice-card:hover:not(.is-disabled) {
  border-color: color-mix(in srgb, var(--store-accent) 35%, var(--store-border));
  transform: translateY(-1px);
}

.calc-choice-card.is-selected {
  border-color: var(--store-accent);
  background: color-mix(in srgb, var(--store-accent-soft) 55%, var(--store-surface));
  box-shadow: 0 0 0 3px var(--store-accent-soft);
}

.calc-choice-card.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.calc-choice-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.calc-choice-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 0;
  min-height: 0;
}

.calc-choice-card-body--text-only {
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 0.75rem;
  text-align: center;
}

.calc-choice-card-body--text-only .calc-choice-marker {
  margin: 0;
}

.calc-choice-card-body--text-only .calc-choice-card-text {
  flex: 0;
  padding: 0;
}

.calc-choice-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 4.5rem;
  padding: 0.75rem;
  border-bottom: 1px solid var(--store-border);
  background:
    radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--store-accent-soft) 45%, transparent), transparent 70%),
    linear-gradient(180deg, var(--store-bg) 0%, color-mix(in srgb, var(--store-border) 35%, var(--store-bg)) 100%);
}

.calc-choice-visual--image {
  flex-shrink: 0;
  width: 100%;
  min-height: 0;
  aspect-ratio: 4 / 3;
  padding: 0;
  overflow: hidden;
  background: var(--store-bg);
}

.calc-choice-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
}

.calc-choice-curtain-svg {
  display: block;
  width: 100%;
  max-width: 5.5rem;
  height: auto;
  margin: 0 auto;
}

.calc-curtain-window {
  fill: color-mix(in srgb, var(--store-border) 18%, var(--store-bg));
  stroke: color-mix(in srgb, var(--store-border) 70%, transparent);
  stroke-width: 1;
}

.calc-curtain-rod {
  fill: color-mix(in srgb, var(--store-text) 18%, var(--store-border));
}

.calc-curtain-body {
  fill: color-mix(in srgb, var(--store-accent) 88%, #1f3f73);
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.18));
  transition:
    fill 0.15s ease,
    transform 0.15s ease,
    opacity 0.15s ease;
}

.calc-curtain-pleat {
  stroke: color-mix(in srgb, var(--store-accent) 55%, #0f2748);
  stroke-width: 0.75;
  stroke-linecap: round;
  opacity: 0.45;
}

.calc-choice-card:not(.is-selected) .calc-curtain-body {
  opacity: 0.82;
}

.calc-choice-card:not(.is-selected) .calc-curtain-pleat {
  opacity: 0.3;
}

.calc-choice-card.is-selected .calc-curtain-panel {
  transform: translateY(-1px);
  transition: transform 0.15s ease;
}

.calc-choice-card.is-selected .calc-curtain-body {
  fill: color-mix(in srgb, var(--store-accent) 92%, white);
}

.calc-choice-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  margin: 0.75rem auto 0.25rem;
  border-radius: 999px;
  background: var(--store-bg);
  color: var(--store-accent);
  font-size: 0.8125rem;
  font-weight: 700;
}

.calc-choice-card-body--media .calc-choice-marker {
  margin: 0.75rem auto 0.25rem;
}

.calc-choice-card.is-selected .calc-choice-marker {
  background: var(--store-accent);
  color: #fff;
}

.calc-choice-card-text {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
  padding: 0.625rem 0.75rem 0.875rem;
  text-align: center;
  align-items: center;
}

.calc-choice-card-title {
  font-size: 0.875rem;
  line-height: 1.35;
}

.calc-choice-card-desc {
  color: var(--store-muted);
  font-size: 0.75rem;
  line-height: 1.45;
}

.calc-choice-card-price {
  margin-top: 0.125rem;
  color: var(--store-accent);
  font-size: 0.75rem;
  font-weight: 700;
}

.calc-radio {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.45;
}

.calc-footer {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  padding-top: 0.25rem;
}

.calc-live-preview {
  margin: 0;
  border: 1px solid var(--store-border);
  border-radius: var(--store-radius);
  background: var(--store-surface);
  overflow: hidden;
}

.calc-live-preview--empty {
  padding: 1rem 1.125rem;
  background: color-mix(in srgb, var(--store-bg) 65%, var(--store-surface));
  text-align: center;
}

.calc-live-preview-empty {
  margin: 0;
  color: var(--store-muted);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.calc-live-preview--ready {
  display: grid;
  gap: 0;
}

.calc-live-preview-head {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--store-border);
  background: color-mix(in srgb, var(--store-bg) 50%, var(--store-surface));
}

.calc-live-preview-title {
  color: var(--store-text);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.calc-live-preview-rows {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0.625rem 1rem 0;
}

.calc-live-preview-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4375rem 0;
}

.calc-live-preview-row dt {
  margin: 0;
  color: var(--store-muted);
  font-size: 0.8125rem;
  font-weight: 500;
}

.calc-live-preview-row dd {
  margin: 0;
  color: var(--store-text);
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
}

.calc-live-preview-total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.5rem;
  padding: 0.875rem 1rem;
  border-top: 1px solid var(--store-border);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--store-accent-soft) 70%, var(--store-surface)) 0%,
    var(--store-surface) 100%
  );
}

.calc-live-preview-total span {
  color: var(--store-text);
  font-size: 0.875rem;
  font-weight: 600;
}

.calc-live-preview-total strong {
  color: var(--store-accent);
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.calc-live-preview-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0;
  padding: 0.75rem 1rem;
  border-top: 1px solid color-mix(in srgb, var(--store-border) 88%, transparent);
  background: color-mix(in srgb, var(--store-bg) 55%, var(--store-surface));
  color: var(--store-muted);
  font-size: 0.75rem;
  line-height: 1.45;
}

.calc-live-preview-notice i {
  flex-shrink: 0;
  margin-top: 0.1rem;
  color: var(--store-accent);
  font-size: 0.875rem;
}

.calc-live-preview-notice strong {
  color: var(--store-text);
  font-weight: 600;
}

.calc-actions {
  margin: 0;
}

.calc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4375rem;
  min-height: 2.875rem;
  padding: 0.75rem 1.125rem;
  border: 1px solid var(--store-border);
  border-radius: calc(var(--store-radius) - 2px);
  background: var(--store-surface);
  color: var(--store-text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.calc-btn:hover,
.calc-btn:focus-visible {
  outline: none;
}

.calc-btn-primary {
  width: 100%;
  background: var(--store-accent);
  color: #fff;
  border-color: var(--store-accent);
}

.calc-btn-primary:hover,
.calc-btn-primary:focus-visible {
  background: var(--store-accent-hover);
  border-color: var(--store-accent-hover);
}

.calc-btn-muted {
  border-color: var(--store-border);
  color: var(--store-muted);
}

.calc-btn-muted:hover,
.calc-btn-muted:focus-visible {
  color: var(--store-text);
  border-color: color-mix(in srgb, var(--store-accent) 25%, var(--store-border));
}

/* Modal */
.calc-modal {
  width: min(640px, 94vw);
  padding: 0;
  border: 0;
  border-radius: var(--store-radius);
  background: var(--store-surface);
  box-shadow: var(--store-shadow);
}

.calc-modal::backdrop {
  background: rgba(28, 25, 23, 0.45);
  backdrop-filter: blur(2px);
}

.calc-modal-inner {
  margin: 0;
}

.calc-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.125rem;
  border-bottom: 1px solid var(--store-border);
  background: var(--store-bg);
}

.calc-modal-header-text {
  flex: 1;
  min-width: 0;
}

.calc-modal-back {
  flex-shrink: 0;
  gap: 0.375rem;
}

.calc-modal-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.calc-modal-progress {
  margin: 0.25rem 0 0;
  font-size: 0.75rem;
  color: var(--store-muted);
}

.calc-modal-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.125rem;
  max-height: 60vh;
  overflow: auto;
}

.calc-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 0.875rem 1.125rem;
  border-top: 1px solid var(--store-border);
  background: var(--store-bg);
}

.calc-modal-footer-actions {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-left: auto;
}

.calc-modal-footer .calc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  width: auto;
  min-height: 2.25rem;
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
}

.calc-modal-footer .calc-btn-primary {
  width: auto;
}

.calc-radio-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.calc-jumbo-lock-note {
  margin: 0 0 0.75rem;
  padding: 0.625rem 0.75rem;
  border: 1px solid color-mix(in srgb, var(--store-accent) 24%, var(--store-border));
  border-radius: calc(var(--store-radius) - 4px);
  background: var(--store-accent-soft);
  font-size: 0.8125rem;
}

@media (min-width: 560px) {
  .calc-root {
    padding: 1.375rem;
    gap: 1.375rem;
  }

  .calc-choice-grid--panels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.875rem;
  }

  .calc-choice-grid:not(.calc-choice-grid--panels) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
  }

  .calc-section {
    gap: 1.125rem;
  }
}

@media (min-width: 992px) {
  .calc-choice-grid:not(.calc-choice-grid--panels) {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.625rem;
  }

  .calc-choice-card-body--text-only {
    padding: 0.875rem 0.5rem;
  }
}

@media (max-width: 991.98px) {
  .calc-modal {
    width: 100%;
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    margin: 0;
    border-radius: 0;
  }

  .calc-modal-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 100%;
  }

  .calc-modal-body {
    flex: 1;
    min-height: 0;
    max-height: none;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .calc-choice-card-body--text-only {
    padding: 0.75rem 0.5rem;
  }

  .calc-choice-visual {
    min-height: 3.5rem;
    padding: 0.5rem;
  }

  .calc-modal-header {
    padding: calc(1rem + env(safe-area-inset-top, 0px)) 1rem 1rem;
  }

  .calc-modal-back {
    align-self: flex-start;
    min-width: 2.25rem;
    min-height: 2.25rem;
    padding: 0.4375rem;
  }

  .calc-modal-back .calc-modal-btn-label {
    display: none;
  }

  .calc-modal-footer {
    flex-shrink: 0;
    padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
  }

  .calc-modal-footer-actions {
    display: flex;
    gap: 0.5rem;
    width: 100%;
    margin-left: 0;
  }

  .calc-modal-footer .calc-btn {
    flex: 1 1 0;
    min-width: 0;
    min-height: 2.25rem;
    padding: 0.4375rem 0.75rem;
    font-size: 0.8125rem;
  }
}