:root {
  --bg:        #efebe4;
  --bg-warm:   #f7f4ef;
  --panel:     #ffffff;
  --ink:       #17130e;
  --ink-soft:  #4a423a;
  --muted:     #8b8177;
  --line:      #e5ddd2;
  --line-soft: #f0eae1;
  --accent:    #17130e;
  --radius:    14px;
  --shadow-sm: 0 1px 2px rgba(23,19,14,.06), 0 2px 8px rgba(23,19,14,.05);
  --shadow-lg: 0 2px 6px rgba(23,19,14,.05), 0 18px 48px rgba(23,19,14,.10);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

.app {
  height: 100%;
  display: grid;
  grid-template-columns: 1fr minmax(340px, 400px);
}

/* ------------------------------------------------------------------ сцена */

.stage {
  position: relative;
  min-width: 0;
  background:
    radial-gradient(120% 90% at 50% 8%, var(--bg-warm) 0%, var(--bg) 55%, #e4dfd6 100%);
}

.stage canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: grab;
}

.stage canvas:active { cursor: grabbing; }

.stage-top {
  position: absolute;
  inset: 24px 24px auto 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  pointer-events: none;
}

.badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255,255,255,.7);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  backdrop-filter: blur(6px);
}

.hint {
  font-size: 12.5px;
  color: var(--muted);
  opacity: 0;
  animation: fadeIn .6s ease 1.1s forwards;
}

@keyframes fadeIn { to { opacity: 1; } }

.stage-bottom {
  position: absolute;
  inset: auto 24px 24px 24px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.dims {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  backdrop-filter: blur(6px);
}

.tools {
  display: flex;
  gap: 8px;
}

.tool {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: background .18s, color .18s, transform .18s;
}

.tool:hover {
  background: #fff;
  color: var(--ink);
  transform: translateY(-1px);
}

.tool svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.toast {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 14px);
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 11px 18px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s;
  white-space: nowrap;
  max-width: calc(100% - 48px);
  overflow: hidden;
  text-overflow: ellipsis;
}

.toast.is-on {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ------------------------------------------------------------------ панель */

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--panel);
  border-left: 1px solid var(--line);
  box-shadow: -12px 0 40px rgba(23,19,14,.05);
}

.panel-head {
  padding: 32px 30px 22px;
  border-bottom: 1px solid var(--line-soft);
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.panel-head h1 {
  margin: 0 0 8px;
  font-size: 27px;
  font-weight: 700;
  letter-spacing: -.02em;
}

.panel-head h1 em {
  font-style: normal;
  font-weight: 800;
}

.lede {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--muted);
}

.panel-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 6px 30px 20px;
}

.group {
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.group:last-child { border-bottom: 0; }

.group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.group-head h2 {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--muted);
}

.group-value {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
}

/* образцы */

.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.swatch {
  width: 46px;
  height: 46px;
  padding: 4px;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  transition: border-color .18s, transform .18s;
}

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

.swatch.is-active {
  border-color: var(--ink);
}

.swatch-dot {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 8px;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.08);
}

.swatch-dot.is-metal {
  background-image: linear-gradient(135deg, rgba(255,255,255,.75), rgba(255,255,255,0) 45%, rgba(0,0,0,.28));
}

/* переключатели */

.pills {
  display: flex;
  gap: 8px;
}

.pill {
  flex: 1;
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  background: transparent;
  border: 1.5px solid var(--line);
  border-radius: 11px;
  padding: 11px 12px;
  cursor: pointer;
  transition: border-color .18s, background .18s, color .18s;
}

.pill:hover { border-color: #cfc5b7; }

.pill.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

/* чекбокс */

.check {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.check input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.check-box {
  flex: none;
  width: 21px;
  height: 21px;
  border: 1.5px solid var(--line);
  border-radius: 7px;
  position: relative;
  transition: background .18s, border-color .18s;
}

.check-box::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2.5px;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(.4);
  opacity: 0;
  transition: opacity .16s, transform .16s;
}

.check input:checked + .check-box {
  background: var(--ink);
  border-color: var(--ink);
}

.check input:checked + .check-box::after {
  opacity: 1;
  transform: rotate(45deg) scale(1);
}

.check input:focus-visible + .check-box {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.check-text {
  font-size: 14px;
  font-weight: 600;
}

.check-price {
  margin-left: auto;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.pillow-options {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.pillow-options .group-head { margin-bottom: 12px; }

/* подвал */

.panel-foot {
  padding: 20px 30px 26px;
  border-top: 1px solid var(--line);
  background: var(--panel);
}

.price {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  column-gap: 12px;
  margin-bottom: 16px;
}

.price-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--muted);
}

.price strong {
  justify-self: end;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}

.price-note {
  grid-column: 1 / -1;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--muted);
}

.cta {
  width: 100%;
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 12px;
  padding: 15px;
  cursor: pointer;
  transition: transform .18s, opacity .18s;
}

.cta:hover { transform: translateY(-1px); opacity: .92; }
.cta:active { transform: translateY(0); }

/* ------------------------------------------------------------- адаптивность */

@media (max-width: 900px) {
  body { overflow: auto; }

  .app {
    grid-template-columns: 1fr;
    grid-template-rows: 44vh auto;
    height: auto;
    min-height: 100%;
  }

  .panel {
    border-left: 0;
    border-top: 1px solid var(--line);
    box-shadow: none;
  }

  .panel-head { padding: 20px 20px 14px; }
  .panel-head h1 { font-size: 24px; }
  .lede { font-size: 13px; }
  .group { padding: 16px 0; }
  .panel-body { padding: 6px 20px 16px; overflow: visible; }
  .panel-foot {
    padding: 18px 20px 22px;
    position: sticky;
    bottom: 0;
  }

  .stage-top, .stage-bottom { inset-inline: 16px; }
  .stage-top { top: 16px; }
  .stage-bottom { bottom: 16px; flex-direction: column; align-items: flex-start; }
  .hint { display: none; }

  .swatches { gap: 9px; }
  .swatch { width: 42px; height: 42px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .hint { opacity: 1; }
}