/**
 * components.css
 * -----------------------------------------------------------------------
 * Visual styling for individual UI components: nav links, icon buttons,
 * viewer controls, thumbnails, sidebar steps/accordion/swatches/toggle,
 * chips, and buttons.
 * ----------------------------------------------------------------------- */

/* ============================ NAV ============================ */

.topnav__link {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-soft);
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--duration-fast) var(--ease-standard);
}

.topnav__link:hover,
.topnav__link.is-active {
  color: var(--color-ink);
}

.topnav__link.is-active {
  border-bottom-color: var(--color-accent);
}

.icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-ink);
  transition: background var(--duration-fast) var(--ease-standard);
}

.icon-btn:hover {
  background: var(--color-surface-alt);
}

.icon-btn__badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 15px;
  height: 15px;
  padding: 0 3px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-ink-inverse);
  font-size: 0.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================ VIEWER ============================ */

/* Shared positioning for the zoom/reset stack + the AR button below it —
   one absolutely-positioned column so the AR button's spot is never a
   fragile magic-number offset from the controls box above it. */
.viewer__controls-stack {
  position: absolute;
  top: var(--space-6);
  left: var(--space-6);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
}

.viewer__controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-1);
  box-shadow: var(--shadow-sm);
}

.viewer-ctrl-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  transition: background var(--duration-fast) var(--ease-standard);
}

.viewer-ctrl-btn:hover {
  background: var(--color-surface-alt);
}

.viewer-ctrl-btn + .viewer-ctrl-btn {
  border-top: 1px solid var(--color-border);
  border-radius: 0;
}

.viewer-ctrl-btn:last-child {
  border-radius: var(--radius-sm);
}

.ar-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-accent);
  color: var(--color-ink-inverse);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  box-shadow: var(--shadow-md);
  transition: background var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
}

.ar-btn:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.ar-btn[aria-disabled='true'] {
  opacity: 0.55;
}

/* Inline note shown by ar.js on desktop / when an AR asset is missing,
   instead of a dead "VIEW IN AR" click. Sits directly under the button
   in the .viewer__controls-stack column. */
.ar-hint {
  max-width: 15rem;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  color: var(--color-ink-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  font-size: 0.7rem;
  line-height: 1.4;
  opacity: 0;
  transform: translateY(-2px);
  pointer-events: none;
  transition: opacity var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

.ar-hint.is-visible {
  opacity: 1;
  transform: none;
}

.viewer__canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none; /* let OrbitControls handle single-finger drag/pinch itself */
}

.viewer__canvas:active {
  cursor: grabbing;
}

.viewer__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-ink-faint);
  text-align: center;
  user-select: none;
}

.viewer__placeholder-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 3rem;
  letter-spacing: var(--tracking-wider);
  color: var(--color-border-strong);
}

.viewer__placeholder p {
  font-size: 0.8rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.viewer__drag-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin: var(--space-4) auto 0;
  color: var(--color-ink-faint);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
}

.thumbnail {
  position: relative; /* positions the label + the ::after scrim over the background-image */
  flex: 0 0 auto;
  width: 76px;
  height: 60px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  overflow: hidden; /* clip the background-image render to the rounded corners */
  background-color: var(--color-surface-alt); /* shows briefly before the first render lands */
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-end;
  padding: var(--space-1) var(--space-2);
  transition: border-color var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
}

/* A scrim so the label stays legible over whatever the model render looks
   like at that spot — plain grey text (the old plan, for an empty box)
   doesn't reliably read over an actual photo. */
.thumbnail::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0) 65%);
  pointer-events: none;
}

.thumbnail span {
  position: relative;
  z-index: 1;
  font-size: 0.6rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 0.02em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
}

.thumbnail:hover {
  transform: translateY(-2px);
}

.thumbnail.is-active {
  border-color: var(--color-accent);
}

.thumbnail.is-active span {
  color: #fff;
}

/* ============================ SIDEBAR ============================ */

/* display:none by default is set in layout.css (mobile-only header); overridden there under the 900px breakpoint */
.sidebar__header {
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.sidebar__title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
}

.sidebar > .sidebar__scroll > .step:first-child {
  padding-top: var(--space-5);
}

.sidebar__close {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-ink-faint);
  width: 32px;
  height: 32px;
}

/* Desktop title shown at top of scroll area instead of the mobile header */
.sidebar__scroll::before {
  content: "BUILD YOUR TROLLEY";
  display: block;
  padding-top: var(--space-6);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
}

@media (max-width: 900px) {
  .sidebar__scroll::before {
    display: none;
  }
}

.step {
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border);
}

.step:last-child {
  border-bottom: none;
}

.step__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-ink);
  color: var(--color-ink-inverse);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step__title {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
}

.step__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ---- form fields ---- */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-ink-soft);
}

.select,
.text-input {
  width: 100%;
  padding: var(--space-3) var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: 0.85rem;
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.select:hover,
.text-input:hover {
  border-color: var(--color-ink-faint);
  box-shadow: var(--shadow-sm);
}

.select:focus,
.text-input:focus {
  border-color: var(--color-accent);
}

/* ---- color swatches (step 1) ---- */

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

/* 901-1140px: the sidebar is narrowed to 320px (see layout.css) but still
   a persistent column, not yet the full-width bottom sheet below 900px —
   at that width 4 columns gets cramped enough that two-word labels
   ("Navy Blue", "Champagne Gold") wrap to a second line. Drop to 3 for
   breathing room. (Not nested under max-width:900px too, since below
   900px the sidebar becomes a full-width bottom sheet where 4 columns
   already fits comfortably — verified in the browser at 375/768px.) */
@media (max-width: 1140px) and (min-width: 901px) {
  .swatch-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.swatch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.swatch__chip {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  background: var(--swatch-color, var(--color-surface-alt));
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}

.swatch:hover .swatch__chip {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.swatch.is-selected .swatch__chip {
  box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 4px var(--color-ink);
}

.swatch__check {
  opacity: 0;
  transform: scale(0.6);
  transition: opacity var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
  color: #fff;
  filter: drop-shadow(0 0 1.5px rgba(0, 0, 0, 0.6));
}

.swatch.is-selected .swatch__check {
  opacity: 1;
  transform: scale(1);
}

.swatch__label {
  font-size: 0.68rem;
  color: var(--color-ink-soft);
  text-align: center;
}

/* ---- accordion (step 2) ----
   One bordered container (.accordion) with a divider BETWEEN rows, rather
   than each row being its own separately-bordered/spaced card — that's
   what made COMPONENTS read as a stack of independent boxes instead of
   part of one connected sidebar panel. */

.accordion {
  display: block; /* override .step__body's flex-column (this element has both classes) */
  gap: 0; /* ditto — rows are divided by border-bottom, not a flex gap */
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-row {
  border-bottom: 1px solid var(--color-border);
}

.accordion-row:last-child {
  border-bottom: none;
}

.accordion-row__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  font-size: 0.82rem;
  font-weight: 600;
  text-align: left;
  transition: background var(--duration-fast) var(--ease-standard);
}

.accordion-row__trigger:hover {
  background: var(--color-surface-alt);
}

/* Distinct highlighted state while a row is open, not just on hover —
   matches the "highlighted state on active/selected" ask. */
.accordion-row[data-open="true"] .accordion-row__trigger {
  background: var(--color-surface-alt);
}

.accordion-row__label em {
  display: block;
  margin-top: 2px;
  font-style: normal;
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--color-ink-faint);
}

.accordion-row__chevron {
  flex-shrink: 0;
  transition: transform var(--duration-fast) var(--ease-standard);
}

.accordion-row__trigger[aria-expanded="true"] .accordion-row__chevron {
  transform: rotate(180deg);
}

.accordion-row__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-med) var(--ease-standard);
}

.accordion-row__panel > * {
  min-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: opacity var(--duration-med) var(--ease-standard);
}

.accordion-row[data-open="true"] .accordion-row__panel {
  grid-template-rows: 1fr;
}

.accordion-row[data-open="true"] .accordion-row__panel > * {
  opacity: 1;
}

.dot-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  /* No bottom padding here on purpose: this element is the direct child
     that .accordion-row__panel > * collapses to height:0 via the
     grid-template-rows 0fr/1fr trick below. overflow:hidden on this same
     element can't clip its OWN padding — padding is part of its box, not
     overflowing content — so a bottom padding here would always render
     as a fixed-height sliver even at 0fr, overlapping whatever sits below
     the row. Padding is restored only once the row is actually open. */
  padding: 0 var(--space-4) 0;
}

.accordion-row[data-open="true"] .dot-options {
  padding-bottom: var(--space-4);
}

.dot-option {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--dot-color, var(--color-surface-alt));
  border: 1px solid var(--color-border);
  transition: box-shadow var(--duration-fast) var(--ease-standard);
}

.dot-option:hover {
  box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 4px var(--color-border-strong);
}

.dot-option.is-active {
  box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 4px var(--color-ink);
}

/* ---- personalization (step 3) ---- */

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.toggle {
  position: relative;
  width: 42px;
  height: 24px;
  border-radius: var(--radius-pill);
  background: var(--color-border-strong);
  flex-shrink: 0;
  transition: background var(--duration-fast) var(--ease-standard);
}

.toggle__thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.toggle[aria-checked="true"] {
  background: var(--color-ink);
}

.toggle[aria-checked="true"] .toggle__thumb {
  transform: translateX(18px);
}

.personalization-fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-1);
}

/* Found during the responsive audit, not viewport-specific: the class
   rule above has higher specificity than the browser's default
   `[hidden] { display: none }`, so the `hidden` attribute ui.js sets was
   silently doing nothing — Initials/Location always showed regardless of
   the Monogram toggle. */
.personalization-fields[hidden] {
  display: none;
}

.helper-text {
  font-size: 0.72rem;
  color: var(--color-ink-faint);
  line-height: 1.5;
}

.monogram-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  border: 1px dashed var(--color-border-strong);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-soft);
}

/* ============================ SUMMARY BAR ============================ */

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  white-space: nowrap;
}

.chip__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--chip-color, var(--color-ink-faint));
  flex-shrink: 0;
}

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

.summary-bar__price-label {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-faint);
}

.summary-bar__price-value {
  font-size: 1.1rem;
  font-weight: 700;
}

.btn {
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  transition: background var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn--ghost {
  background: transparent;
  border: 1px solid var(--color-border-strong);
  color: var(--color-ink);
}

.btn--ghost:hover {
  background: var(--color-surface-alt);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-ink-inverse);
  border: 1px solid var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
}