/* ==========================================================================
   Mattress Shape Builder — The Road Two Spoons
   Interactive tool for custom campervan mattress diagrams
   ========================================================================== */

/* Container
   ========================================================================== */

.mattress-builder {
  background: #f8f8f8;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-5);
  margin-bottom: var(--space-5);
}

.mattress-builder h3 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

/* Controls
   ========================================================================== */

.mattress-builder__controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.mattress-builder__section {
  grid-column: 1 / -1;
}

.mattress-builder__section-title {
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.mattress-builder__dim-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-4);
}

.mattress-builder__dim-row .mattress-builder__group {
  width: 120px;
  flex-shrink: 0;
}

.mattress-builder__symmetry-inline {
  font-size: var(--text-small);
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
  padding-bottom: var(--space-1);
}

.mattress-builder__symmetry-inline input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

/* Input Groups
   ========================================================================== */

.mattress-builder__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mattress-builder__group label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.mattress-builder__group input[type="number"] {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  -moz-appearance: textfield;
}

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

.mattress-builder__group input[type="number"]:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(43, 177, 180, 0.15);
}

.mattress-builder__group input[type="number"]:disabled {
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: not-allowed;
  opacity: 0.6;
}

/* Mattress Options Cards
   ========================================================================== */

.mattress-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-5);
  margin-bottom: var(--space-5);
}

.mattress-option {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-white);
}

.mattress-option__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.mattress-option__name {
  font-weight: var(--weight-bold);
  font-size: var(--text-body);
  color: var(--color-text);
}

.mattress-option__price {
  font-weight: var(--weight-bold);
  font-size: var(--text-h3);
  color: var(--color-accent);
  white-space: nowrap;
}

.mattress-option__desc {
  font-size: var(--text-small);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-3) 0;
}

.mattress-option__details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.mattress-option__details span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  background: var(--color-surface);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

@media (max-width: 768px) {
  .mattress-options {
    grid-template-columns: 1fr;
  }
}

/* Corner Accordion
   ========================================================================== */

.mattress-builder__accordion {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.mattress-builder__accordion--open {
  border-color: var(--color-accent);
}

.mattress-builder__accordion-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: none;
  border: none;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: var(--color-accent);
  cursor: pointer;
  width: 100%;
}

.mattress-builder__toggle-icon {
  font-size: 1.1em;
  line-height: 1;
}

.mattress-builder__accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 var(--space-4);
}

.mattress-builder__accordion--open .mattress-builder__accordion-content {
  padding-bottom: var(--space-4);
}

/* Corner Cutouts
   ========================================================================== */

.mattress-builder__corners {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.mattress-builder__corner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.mattress-builder__corner input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent);
  cursor: pointer;
  flex-shrink: 0;
}

.mattress-builder__corner-label {
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  width: 90px;
  flex-shrink: 0;
}

.mattress-builder__corner--disabled .mattress-builder__inline-input {
  opacity: 0.35;
  pointer-events: none;
}

.mattress-builder__inline-input {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.mattress-builder__inline-input label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.mattress-builder__inline-input input[type="number"] {
  width: 80px;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  -moz-appearance: textfield;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

.mattress-builder__inline-input input[type="number"]:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(43, 177, 180, 0.15);
}

.mattress-builder__inline-input input[type="number"]:disabled {
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

/* SVG Preview
   ========================================================================== */

.mattress-builder__preview {
  display: flex;
  justify-content: center;
  padding: var(--space-5) 0;
}

.mattress-builder__preview svg {
  width: 100%;
  max-height: 500px;
  height: auto;
}

/* Action Buttons
   ========================================================================== */

.mattress-builder__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  padding-top: var(--space-4);
}

.mattress-builder__actions .btn {
  width: auto;
}

/* Print
   ========================================================================== */

@media print {
  .mattress-builder__controls,
  .mattress-builder__actions {
    display: none !important;
  }

  .mattress-builder {
    background: none;
    padding: 0;
  }

  .mattress-builder__preview {
    width: 100%;
    padding: 0;
  }

  .mattress-builder__preview svg {
    max-width: 100%;
  }
}

/* Mobile
   ========================================================================== */

@media (max-width: 768px) {
  .mattress-builder {
    padding: var(--space-4);
  }

  .mattress-builder__controls {
    grid-template-columns: 1fr;
  }

  .mattress-builder__dim-row {
    flex-wrap: wrap;
  }

  .mattress-builder__dim-row .mattress-builder__group {
    width: calc(50% - var(--space-2));
  }

  .mattress-builder__corners {
    grid-template-columns: 1fr;
  }

  .mattress-builder__corner {
    display: grid;
    grid-template-columns: auto auto 1fr 1fr;
    gap: var(--space-2) var(--space-3);
    align-items: center;
  }

  .mattress-builder__corner-label {
    width: auto;
    grid-column: 2;
  }

  .mattress-builder__corner input[type="checkbox"] {
    grid-column: 1;
    grid-row: 1;
  }

  .mattress-builder__corner .mattress-builder__inline-input:nth-of-type(1) {
    grid-column: 1 / 3;
    grid-row: 2;
    padding-left: calc(16px + var(--space-3));
  }

  .mattress-builder__corner .mattress-builder__inline-input:nth-of-type(2) {
    grid-column: 3 / 5;
    grid-row: 2;
  }

  .mattress-builder__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .mattress-builder__actions .btn {
    width: 100%;
  }
}