/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --wall-bg: #f5f4f0;
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --artwork-display-width: 480px;
  --transition-frame: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.2s ease;

  /* Per-frame/passe values — set via data-attribute rules injected by _installTokenStyles */
  --frame-width: 0px;
  --frame-inner-shadow: none;
  --frame-wall-shadow: 0 4px 18px -2px rgba(0,0,0,0.10), 0 2px 6px 0 rgba(0,0,0,0.06);
  --glass-opacity: 0;
  --frame-shell-background: transparent;

  --passe-top: 0px;
  --passe-right: 0px;
  --passe-bottom: 0px;
  --passe-left: 0px;
  --passe-color: transparent;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-stack);
  background: var(--wall-bg);
  color: #2a2825;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden; 
}

/* ============================================================
   PAGE LAYOUT
   ============================================================ */
.gallery-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ============================================================
   WALL / PREVIEW SECTION
   ============================================================ */
.preview-section {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 40px 60px;
}

.frame-scene {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  /* Subtle ambient light from upper center — warm gallery lighting */
  background: radial-gradient(ellipse 70% 55% at 45% 30%, rgba(255,252,235,0.35) 0%, transparent 70%);
}

/* ============================================================
   FRAME COMPOSITION — transform root
   ============================================================ */
.frame-composition {
  position: relative;
  display: inline-block;
  /* Slight gallery-wall perspective tilt */
  transform: perspective(1400px) rotateX(1.2deg) rotateY(-0.8deg);
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.frame-composition:hover {
  transform: perspective(1400px) rotateX(0.3deg) rotateY(-0.2deg);
}

/* ============================================================
   FRAME SHELL — the border/frame itself
   ============================================================ */
.frame-shell {
  position: relative;
  display: inline-block;
  /* Border uses transparent color; gradient fills via background-clip trick */
  border: var(--frame-width) solid transparent;
  background: var(--frame-shell-background);
  box-shadow: var(--frame-wall-shadow);
  transition:
    border-width var(--transition-frame),
    background var(--transition-frame),
    box-shadow var(--transition-frame),
    opacity var(--transition-fast);
  /* Prevent children from bleeding outside */
  overflow: visible;
}

/* Glass reflection — diagonal highlight across the entire framed piece */
.frame-shell::before {
  content: '';
  position: absolute;
  inset: calc(-1 * var(--frame-width));
  z-index: 10;
  pointer-events: none;
  background: linear-gradient(
    138deg,
    rgba(255,255,255,var(--glass-opacity)) 0%,
    rgba(255,255,255,calc(var(--glass-opacity) * 0.4)) 35%,
    transparent 60%
  );
  transition: opacity var(--transition-frame);
}

/* No-frame state */
[data-frame="none"] .frame-shell {
  border-width: 0;
  background: transparent !important;
}

[data-frame="none"] .frame-shell::before {
  inset: 0;
}

/* ============================================================
   FRAME FACE — inner edge; depth shadow cast onto mat/artwork
   ============================================================ */
.frame-face {
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition-frame);
  line-height: 0;
}

/* Pseudo-element overlay so the inner shadow renders ABOVE the mat background */
.frame-face::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  box-shadow: var(--frame-inner-shadow);
  transition: box-shadow var(--transition-frame);
}

/* ============================================================
   PASSEPARTOUT / MAT
   ============================================================ */
.passe-partout {
  position: relative;
  background-color: var(--passe-color);
  padding-top: var(--passe-top);
  padding-right: var(--passe-right);
  padding-bottom: var(--passe-bottom);
  padding-left: var(--passe-left);
  transition:
    background-color var(--transition-frame),
    padding-top    var(--transition-frame),
    padding-right  var(--transition-frame),
    padding-bottom var(--transition-frame),
    padding-left   var(--transition-frame),
    box-shadow var(--transition-frame);
  line-height: 0;
}


/* ============================================================
   ARTWORK
   ============================================================ */
.artwork-wrapper {
  display: block;
  /* Width and height are set inline by Renderer in integer px. */
  max-width: 100%;
  line-height: 0;
}

/* Bevel positioned 4px outside the artwork edge so the border lands on the mat's inner face,
   not on the artwork. CSS border corners are naturally 45° mitered, matching the bevel cut.
   Top/left: slightly darker (angled away from overhead light).
   Bottom/right: slightly lighter (angled to catch reflected light). */
.mat-bevel {
  position: absolute;
  top:    calc(var(--passe-top,    0px) - 3px);
  right:  calc(var(--passe-right,  0px) - 3px);
  bottom: calc(var(--passe-bottom, 0px) - 3px);
  left:   calc(var(--passe-left,   0px) - 3px);
  pointer-events: none;
  z-index: 11;
  border-style: solid;
  border-width: 3px;
  border-top-color:    color-mix(in srgb, var(--passe-color) 88%, black);
  border-left-color:   color-mix(in srgb, var(--passe-color) 90%, black);
  border-bottom-color: color-mix(in srgb, var(--passe-color) 92%, black);
  border-right-color:  color-mix(in srgb, var(--passe-color) 97%, black);
  transition:
    top    var(--transition-frame),
    right  var(--transition-frame),
    bottom var(--transition-frame),
    left   var(--transition-frame),
    border-color var(--transition-frame);
}

[data-passe="none"] .mat-bevel {
  border-color: transparent;
}

.artwork-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s ease;
  user-select: none;
  -webkit-user-drag: none;
}

/* ============================================================
   CONTROLS SECTION
   ============================================================ */
.controls-section {
  background: #fff;
  border-top: 1px solid rgba(0,0,0,0.06);
  padding: 28px 40px 36px;
}

.controls-inner {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  gap: 40px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.controls-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-basis: 100%;
}

.controls-label {
  margin: 0;
  font-size: 1em;
  font-weight: 600;
  letter-spacing: normal;
  text-transform: none;
  color: inherit;
}

/* ============================================================
   FRAME SELECTOR BUTTONS
   ============================================================ */
.selector-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.swatch-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.swatch-label {
  font-size: 10px;
  line-height: 1.2;
  color: #6a6765;
  text-align: center;
  max-width: 64px;
  overflow-wrap: break-word;
  word-break: break-word;
}

.frame-btn {
  padding: 8px 16px;
  border: 1.5px solid #d8d5d0;
  border-radius: 2px;
  background: transparent;
  font-family: var(--font-stack);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: #4a4845;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    color var(--transition-fast);
  white-space: nowrap;
}

.frame-btn:hover:not(.is-active) {
  border-color: #a0a0a0;
  color: #1a1a1a;
}

.frame-btn.is-active {
  border-color: #1a1a1a;
  background: #1a1a1a;
  color: #fff;
}

/* ============================================================
   FRAME SWATCH BUTTONS (visual mini-frame preview)
   ============================================================ */
.frame-swatch {
  position: relative;
  width: 58px;
  height: 58px;
  /* Frame border via background-clip trick */
  border: 7px solid transparent;
  /* Padding = white mat visible between frame border and artwork */
  padding: var(--swatch-mat-padding, 4px);
  border-radius: 2px;
  cursor: pointer;
  outline: none;
  flex-shrink: 0;
  overflow: hidden;
  transition:
    box-shadow var(--transition-fast),
    transform var(--transition-fast),
    padding var(--transition-fast);
  background: linear-gradient(var(--swatch-mat-color, #fdfcfb), var(--swatch-mat-color, #fdfcfb)) padding-box,
              var(--swatch-frame-gradient, linear-gradient(transparent, transparent)) border-box;
}

.frame-swatch:hover:not(.is-active) {
  transform: scale(1.07);
}

.frame-swatch.is-active {
  transform: scale(1.07);
}

.swatch-item:has(.frame-swatch.is-active)::after {
  content: '✓';
  position: absolute;
  top: -8px;
  right: -6px;
  width: 18px;
  height: 18px;
  background: #1a1a1a;
  color: #fff;
  font-size: 12px;
  line-height: 18px;
  text-align: center;
  border-radius: 50%;
  pointer-events: none;
}

/* Artwork thumbnail inside the mat */
.frame-swatch .swatch-art {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  pointer-events: none;
  /* Fallback when src is empty (null-src artwork) */
  background: linear-gradient(180deg, #8aa0b8 0%, #2a3848 55%, #2e2218 100%);
}

.swatch-art {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  pointer-events: none;
  /* Fallback when src is empty (null-src artwork) */
  background: linear-gradient(180deg, #8aa0b8 0%, #2a3848 55%, #2e2218 100%);
}

/* "No frame" swatch */
.frame-swatch--none {
  background: transparent !important;
  border: 1.5px dashed #bbb !important;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #bbb;
}

.frame-swatch--none.is-active {
  border-color: #1a1a1a !important;
  color: #1a1a1a;
  box-shadow: none;
  transform: scale(1.07);
}

/* ============================================================
   MAT SWATCH BUTTONS
   ============================================================ */
.passe-btn {
  position: relative;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    transform var(--transition-fast),
    opacity var(--transition-fast);
  outline: none;
  flex-shrink: 0;
  background-color: var(--passe-swatch-bg, transparent);
  box-shadow: var(--passe-swatch-shadow, none);
}

.passe-btn:hover:not(.is-active):not(:disabled) {
  transform: scale(1.1);
}

.passe-btn.is-active {
  border-color: #1a1a1a;
  transform: scale(1.18);
}

.passe-btn.is-active::after {
  content: '✓';
  position: absolute;
  top: -5px;
  right: -5px;
  width: 13px;
  height: 13px;
  background: #1a1a1a;
  color: #fff;
  font-size: 9px;
  line-height: 13px;
  text-align: center;
  border-radius: 50%;
  pointer-events: none;
}

.passe-btn:disabled {
  opacity: 0.22;
  pointer-events: none;
}

/* "No mat" swatch — dashed outline with × */
.passe-btn--none {
  background: transparent !important;
  border: 1.5px dashed #bbb !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #bbb;
  line-height: 1;
}

.passe-btn--none.is-active {
  border-color: #1a1a1a !important;
  color: #1a1a1a;
}

/* ============================================================
   SECTION DIVIDER (artwork title area, optional)
   ============================================================ */
.artwork-meta {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 40px 24px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.artwork-title {
  font-size: 18px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: #1a1a1a;
  margin-bottom: 4px;
}

.artwork-subtitle {
  font-size: 12px;
  color: #999;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ============================================================
   SIZE SELECTOR BUTTONS (extends .frame-btn)
   ============================================================ */
.size-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 7px 14px;
}

.size-btn-name {
  font-size: 12px;
  font-weight: 500;
}

.size-btn-cm {
  font-size: 10px;
  color: #aaa;
  letter-spacing: 0.02em;
}

.size-btn.is-active .size-btn-cm {
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================================
   ARTWORK SELECTOR BUTTONS
   ============================================================ */
.artwork-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 7px 14px;
}

.btn-label {
  font-size: 12px;
  font-weight: 500;
}

.btn-dims {
  font-size: 9px;
  color: #b0ada8;
  letter-spacing: 0.02em;
  font-weight: 400;
}

.frame-btn.is-active .btn-dims {
  color: rgba(255, 255, 255, 0.55);
}

/* ============================================================
   DEBUG PANEL
   ============================================================ */
.debug-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  font-family: 'Courier New', Courier, monospace;
  font-size: 11px;
  color: #444;
  padding: 6px 20px;
  background: rgba(232, 228, 222, 0.96);
  border-top: 1px solid rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(4px);
  letter-spacing: 0.02em;
  line-height: 1.8;
  overflow-x: auto;
}

.dbg-row {
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
}

.dbg-sep {
  color: #bbb;
  font-size: 14px;
}

.debug-panel b {
  font-weight: 700;
  color: #888;
  margin-right: 6px;
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .frame-composition,
  .frame-shell,
  .frame-shell::before,
  .frame-face,
  .passe-partout,
  .artwork-img,
  .frame-btn,
  .passe-btn,
  .frame-side {
    transition: none !important;
    animation: none !important;
  }
}

/* ============================================================
   RESPONSIVE — tablet
   ============================================================ */
@media (max-width: 768px) {
  .preview-section {
    padding: 8px 4px 8px;
  }

  .controls-section {
    padding: 14px 14px 16px;
  }

  .controls-inner {
    gap: 28px;
  }
}

/* ============================================================
   RESPONSIVE — mobile
   ============================================================ */
@media (max-width: 520px) {
  .preview-section {
    padding: 6px 2px 6px;
  }

  /* Disable perspective tilt — too aggressive on small screens */
  .frame-composition,
  .frame-composition:hover {
    transform: none !important;
  }

  .controls-section {
    padding: 20px 16px 28px;
  }

  .controls-inner {
    flex-direction: column;
    gap: 20px;
  }

  .frame-btn {
    padding: 7px 13px;
    font-size: 11px;
  }
}

/* Hybrid mode: widget hidden until the frame attribute is selected in WooCommerce */
.gsaf-widget--hidden {
  display: none;
}