.page-studio main { padding-bottom: 32px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.studio { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 32px; padding-top: 20px; align-items: start; }

.studio-preview { position: sticky; top: calc(var(--header-h) + 12px); display: grid; gap: 12px; }
.product-bar { display: grid; gap: 10px; }
.product-bar select { font-weight: 600; }
.bar-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.small-swatches .color-option { width: 30px; height: 30px; }
.area-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.area-chips .chip { padding: 6px 12px; font-size: .82rem; }

.stage-wrap { display: grid; place-items: center; }
.stage { position: relative; width: 100%; max-width: 560px; aspect-ratio: 5 / 6; border-radius: 22px; overflow: hidden; background: var(--surface-2); box-shadow: var(--shadow); touch-action: none; user-select: none; -webkit-user-select: none; }
.stage-product { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.print-area { position: absolute; outline: 1.5px dashed rgba(176, 141, 87, .0); transition: outline-color .2s; }
.stage.show-area .print-area, .stage:hover .print-area { outline-color: rgba(176, 141, 87, .75); }
.print-area-hint { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; font-size: .82rem; color: rgba(176, 141, 87, .95); padding: 8px; pointer-events: none; }
.design-layer { position: absolute; transform: translate(-50%, -50%); cursor: grab; touch-action: none; }
.design-layer:active { cursor: grabbing; }
.design-layer img { width: 100%; height: auto; pointer-events: none; filter: drop-shadow(0 1px 1px rgba(0, 0, 0, .35)); }
.design-layer.dragging { outline: 1px solid rgba(176, 141, 87, .9); }
.stage-loading { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(250, 248, 245, .45); }
.spinner { width: 34px; height: 34px; border-radius: 50%; border: 3px solid rgba(0, 0, 0, .12); border-top-color: var(--ink); animation: spin .8s linear infinite; display: inline-block; }

.stage-controls { display: flex; align-items: center; gap: 14px; max-width: 560px; width: 100%; margin: 0 auto; }
.size-control { flex: 1; display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; font-size: .88rem; }
.size-control label { font-weight: 600; }
.size-control output { min-width: 58px; text-align: right; font-weight: 600; }
.stage-buttons { display: flex; gap: 8px; }
.design-meta { max-width: 560px; margin: 0 auto; width: 100%; min-height: 1.4em; }

input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 4px; background: var(--line); border-radius: 4px; outline: none; padding: 0; min-height: 0; border: 0; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--ink); border: 3px solid #fff; box-shadow: 0 1px 4px rgba(0, 0, 0, .3); cursor: pointer; }
input[type="range"]::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--ink); border: 3px solid #fff; box-shadow: 0 1px 4px rgba(0, 0, 0, .3); cursor: pointer; }

.studio-tools { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 18px; display: grid; gap: 16px; }
.tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; background: var(--surface-2); padding: 5px; border-radius: 14px; }
.tab { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 8px; border: 0; border-radius: 10px; background: transparent; cursor: pointer; font-weight: 600; font-size: .92rem; color: var(--muted); transition: all .15s; }
.tab svg { width: 18px; height: 18px; }
.tab[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgba(0, 0, 0, .08); }
.panel { display: grid; gap: 16px; animation: fade .2s ease; }

.style-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.style-option { border: 1px solid var(--line); border-radius: 12px; padding: 10px 6px; background: var(--surface); cursor: pointer; text-align: center; font-size: .84rem; transition: all .15s; }
.style-option:hover { border-color: var(--ink-2); }
.style-option[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }

.stone-swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.stone { width: 36px; height: 36px; border-radius: 50%; border: 0; cursor: pointer; position: relative; box-shadow: 0 0 0 1px rgba(0, 0, 0, .1), inset -3px -4px 6px rgba(0, 0, 0, .25), inset 3px 3px 6px rgba(255, 255, 255, .55); transition: transform .15s; }
.stone:hover { transform: scale(1.08); }
.stone[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--ink), inset -3px -4px 6px rgba(0, 0, 0, .25), inset 3px 3px 6px rgba(255, 255, 255, .55); }
.stone-name { font-size: .82rem; color: var(--muted); margin-top: 6px; }

.search-row input { width: 100%; }
.template-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; max-height: 360px; overflow-y: auto; padding: 2px; }
.template-item { background: #1d1c1b; border-radius: 12px; aspect-ratio: 1; display: grid; place-items: center; padding: 10px; border: 2px solid transparent; cursor: pointer; position: relative; }
.template-item img { max-height: 100%; object-fit: contain; }
.template-item[aria-pressed="true"] { border-color: var(--accent); }
.template-item .tt { position: absolute; left: 6px; right: 6px; bottom: 4px; color: rgba(255, 255, 255, .75); font-size: .68rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center; }
.template-options { display: grid; gap: 14px; }

.ai-quote { border-radius: 14px; padding: 14px 16px; background: var(--accent-soft); color: var(--accent-ink); font-size: .92rem; display: grid; gap: 6px; }
.ai-quote strong { color: var(--ink); }
.ai-quote.demo { background: var(--warn-soft); color: var(--warn); }
.ai-quote a { text-decoration: underline; }
.ai-status { display: flex; gap: 12px; align-items: center; padding: 14px; border-radius: 14px; background: var(--surface-2); font-size: .92rem; }
.ai-status.error { background: var(--danger-soft); color: var(--danger); }
.variant-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.variant-card { position: relative; background: #1d1c1b; border-radius: 14px; aspect-ratio: 1; overflow: hidden; border: 2px solid transparent; cursor: pointer; padding: 0; }
.variant-card img { width: 100%; height: 100%; object-fit: contain; }
.variant-card[aria-pressed="true"] { border-color: var(--accent); }
.variant-card .vn { position: absolute; left: 8px; top: 8px; background: rgba(255, 255, 255, .9); border-radius: 6px; font-size: .72rem; font-weight: 700; padding: 2px 7px; }
.variant-card .vz { position: absolute; right: 6px; bottom: 6px; width: 32px; height: 32px; border-radius: 50%; background: rgba(255, 255, 255, .9); display: grid; place-items: center; border: 0; cursor: pointer; }
.variant-card .vz svg { width: 16px; height: 16px; }
.variant-card.skeleton { cursor: default; }
.ai-history summary { cursor: pointer; font-weight: 600; font-size: .9rem; padding: 6px 0; }
.ai-history .list-item { padding: 10px; }
.ai-history .list-item .thumb { width: 52px; height: 52px; }

.studio-actions { display: grid; grid-template-columns: 1fr 1.4fr; gap: 10px; position: sticky; bottom: 0; background: var(--surface); padding-top: 6px; }

.zoom-card { background: #1d1c1b; padding: 28px; display: grid; place-items: center; }
.zoom-card img { max-height: 80vh; object-fit: contain; }

.stage.no-image .stage-product { visibility: hidden; }
.design-layer:focus-visible, .variant-card:focus-visible, .template-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.field .hint.is-error, .field-error { color: var(--danger); font-size: .8rem; }
.spinner-sm { width: 18px; height: 18px; border-width: 2px; flex: none; }
.ai-status-text { flex: 1; min-width: 0; }
.ai-status .btn { flex: none; }
.ai-history .list { margin-top: 8px; }
.ai-history .list-item { width: 100%; text-align: left; cursor: pointer; font: inherit; color: inherit; }
.ai-history .list-item .title, .ai-history .list-item .sub { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.template-item.skeleton { cursor: default; border-color: transparent; }
.template-empty { grid-column: 1 / -1; text-align: center; padding: 24px 0; margin: 0; }
.stage-buttons .icon-btn[disabled], .studio-actions .btn[disabled] { opacity: .45; cursor: not-allowed; }
.size-control input[disabled] { opacity: .45; }

@media (max-width: 960px) {
  .studio { grid-template-columns: 1fr; gap: 18px; padding-top: 12px; }
  .studio-preview { position: static; }
  .stage { max-width: 440px; border-radius: 18px; }
  .studio-tools { border-radius: 18px; padding: 14px; }
  .studio-actions { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); box-shadow: 0 -8px 24px rgba(0, 0, 0, .06); }
  .page-studio main { padding-bottom: 90px; }
}
@media (max-width: 560px) {
  .style-grid { grid-template-columns: repeat(2, 1fr); }
  .template-grid { grid-template-columns: repeat(3, 1fr); max-height: 300px; }
  .tab span { font-size: .84rem; }
  .stone { width: 34px; height: 34px; }
}