/* ==========================================================================
   WASHTROUGH.CSS — Wash Trough Configurator Styles
   toilet-cubicle.co.uk
   ========================================================================== */

/* -------------------------------------------------------------------------
   Page Layout
   ------------------------------------------------------------------------- */

.wt-page {
  min-height: 100vh;
  background-color: var(--color-off-white);
}

.wt-configurator {
  display: grid;
  grid-template-columns: 1fr;
  min-height: calc(100vh - var(--header-height));
}

@media (min-width: 1024px) {
  .wt-configurator {
    grid-template-columns: 1fr 400px;
  }
}

/* -------------------------------------------------------------------------
   SVG Viewport
   ------------------------------------------------------------------------- */

.wt-viewport {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  background-color: var(--color-white);
  background-image:
    linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  min-height: 400px;
}

.wt-viewport svg {
  width: 100%;
  height: 100%;
  max-height: 60vh;
}

/* View toggle buttons */
.wt-view-toggle {
  position: absolute;
  top: var(--sp-2);
  left: var(--sp-2);
  display: flex;
  gap: 2px;
  background-color: var(--color-grey-100);
  border-radius: var(--radius);
  padding: 2px;
}

.wt-view-btn {
  padding: 6px 14px;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.wt-view-btn:hover {
  color: var(--color-text-primary);
}

.wt-view-btn.active {
  color: var(--color-white);
  background-color: var(--color-charcoal);
  box-shadow: var(--shadow-xs);
}

/* Dimension readout */
.wt-readout {
  position: absolute;
  bottom: var(--sp-2);
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

/* -------------------------------------------------------------------------
   Sidebar
   ------------------------------------------------------------------------- */

.wt-sidebar {
  background-color: var(--color-white);
  border-left: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

/* Tabs */
.wt-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-grey-50);
  position: sticky;
  top: 0;
  z-index: 2;
}

.wt-tabs [role="tab"] {
  flex: 1;
  padding: var(--sp-2) var(--sp-1);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.wt-tabs [role="tab"]:hover {
  color: var(--color-text-primary);
}

.wt-tabs [role="tab"][aria-selected="true"] {
  color: var(--color-green);
  border-bottom-color: var(--color-green);
  background-color: var(--color-white);
}

/* Tab panels */
.wt-sidebar [role="tabpanel"] {
  padding: var(--sp-3);
  flex: 1;
}

/* Fieldsets */
.wt-sidebar fieldset {
  border: none;
  padding: 0;
  margin: 0 0 var(--sp-3) 0;
}

.wt-sidebar legend {
  display: block;
  width: 100%;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-secondary);
  padding-bottom: var(--sp-1);
  margin-bottom: var(--sp-2);
  border-bottom: 1px solid var(--color-border);
}

/* Select inputs */
.wt-sidebar select {
  width: 100%;
  padding: 10px 12px;
  font-size: var(--text-sm);
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.wt-sidebar select:focus {
  outline: none;
  border-color: var(--color-green);
  box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.15);
}

/* Radio group */
.wt-radio-group {
  display: flex;
  gap: var(--sp-1);
}

.wt-radio-group label {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-grey-50);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.wt-radio-group label.wt-radio-group--selected {
  color: var(--color-green);
  background-color: rgba(39, 174, 96, 0.08);
  border-color: var(--color-green);
}

.wt-radio-group input[type="radio"] {
  display: none;
}

/* Tap count display */
.wt-tap-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  font-size: var(--text-sm);
  background-color: var(--color-grey-50);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-primary);
}

.wt-tap-display__label {
  color: var(--color-text-secondary);
}

.wt-tap-display__value {
  font-weight: var(--weight-semibold);
  font-family: var(--font-mono);
}

/* Swatch grid */
.wt-swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
  gap: var(--sp-1);
}

/* -------------------------------------------------------------------------
   Overview / Stepper
   ------------------------------------------------------------------------- */

.wt-overview {
  padding: var(--sp-2) var(--sp-3);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-grey-50);
}

.wt-overview__steps {
  display: flex;
  gap: var(--sp-2);
}

.wt-overview__step {
  flex: 1;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  padding-top: var(--sp-1);
  border-top: 3px solid var(--color-grey-200);
  transition: all var(--transition-fast);
}

.wt-overview__step--complete {
  color: var(--color-green);
  border-top-color: var(--color-green);
}

/* -------------------------------------------------------------------------
   Action Buttons
   ------------------------------------------------------------------------- */

.wt-actions {
  padding: var(--sp-2) var(--sp-3);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  position: sticky;
  bottom: 0;
}

/* -------------------------------------------------------------------------
   Mobile Sidebar Toggle
   ------------------------------------------------------------------------- */

.wt-sidebar-toggle {
  display: none;
}

@media (max-width: 1023px) {
  .wt-sidebar-toggle {
    display: block;
    position: fixed;
    bottom: var(--sp-3);
    right: var(--sp-3);
    z-index: var(--z-sticky);
    padding: 12px 20px;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-white);
    background-color: var(--color-green);
    border: none;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg), var(--shadow-green);
    cursor: pointer;
  }

  .wt-sidebar {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 400px;
    z-index: var(--z-overlay);
    transform: translateX(100%);
    transition: transform 0.3s var(--ease-out);
    box-shadow: var(--shadow-xl);
  }

  .wt-sidebar--open {
    transform: translateX(0);
  }
}