:root {
  color-scheme: light;
  --ink: #17201d;
  --muted: #68736f;
  --line: #d9dfdc;
  --paper: #ffffff;
  --surface: #f3f6f4;
  --green: #16845b;
  --green-dark: #0e6243;
  --green-soft: #e6f4ed;
  --shadow: 0 18px 50px rgba(24, 45, 36, .08);
}

* { box-sizing: border-box; }
[hidden], .runtime { display: none !important; }
html, body { min-height: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: #eef2ef;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}
button, input, select { font: inherit; }
button, a, label { -webkit-tap-highlight-color: transparent; }

.studio-bar {
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 clamp(16px, 2.5vw, 38px);
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 9px; color: var(--ink); font-size: 17px; font-weight: 800; text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.brand b { color: var(--green); }
.studio-status { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }

.app { height: calc(100vh - 58px); padding: 12px; }
.studio {
  width: min(1680px, 100%);
  height: 100%;
  margin: auto;
  display: grid;
  grid-template-columns: minmax(245px, 290px) minmax(480px, 1fr) minmax(250px, 300px);
  gap: 10px;
}
.panel {
  min-width: 0;
  min-height: 0;
  padding: 14px;
  overflow: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 7px;
  box-shadow: var(--shadow);
}
.panel-heading { min-height: 38px; display: flex; align-items: flex-start; gap: 9px; margin-bottom: 12px; }
.panel-heading .step { flex: 0 0 23px; padding-top: 3px; color: var(--green); font: 750 9px/1.2 "SFMono-Regular", Consolas, monospace; }
.panel-heading h1 { margin: 0; font-size: 14px; line-height: 1.2; }
.panel-heading p { margin: 3px 0 0; color: var(--muted); font-size: 10px; }

.upload-button {
  min-height: 70px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px;
  color: white;
  background: var(--green);
  border-radius: 5px;
  cursor: pointer;
  transition: background .18s, transform .18s;
}
.upload-button:hover { background: var(--green-dark); transform: translateY(-1px); }
.upload-button input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.upload-mark { display: grid; place-items: center; flex: 0 0 38px; height: 38px; border: 1px solid rgba(255,255,255,.4); border-radius: 50%; font-size: 24px; }
.upload-button > span:last-child { min-width: 0; display: grid; gap: 3px; }
.upload-button strong { font-size: 12px; }
.upload-button small { color: rgba(255,255,255,.78); font-size: 9px; }

.size-controls { display: grid; grid-template-columns: 1fr 12px 1fr; align-items: end; gap: 6px; margin: 12px 0; }
.size-controls > span { padding-bottom: 9px; color: var(--muted); text-align: center; font-size: 11px; }
.size-controls label, .bag-control { display: grid; gap: 5px; color: var(--muted); font-size: 9px; font-weight: 700; text-transform: uppercase; }
.size-controls input, .bag-control select {
  width: 100%;
  height: 34px;
  padding: 0 9px;
  color: var(--ink);
  background: white;
  border: 1px solid var(--line);
  border-radius: 4px;
}
.size-controls input:focus, .bag-control select:focus { outline: 2px solid var(--green-soft); border-color: var(--green); }

.stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  min-height: 210px;
  overflow: hidden;
  background:
    linear-gradient(45deg, #e7ebe8 25%, transparent 25%),
    linear-gradient(-45deg, #e7ebe8 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e7ebe8 75%),
    linear-gradient(-45deg, transparent 75%, #e7ebe8 75%), #f7f9f8;
  background-position: 0 0, 0 7px, 7px -7px, -7px 0;
  background-size: 14px 14px;
  border: 1px solid var(--line);
  border-radius: 5px;
  touch-action: none;
  cursor: grab;
}
.stage:active { cursor: grabbing; }
.stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.shade { position: absolute; background: rgba(16, 24, 21, .58); pointer-events: none; }
.frame { position: absolute; border: 2px solid white; box-shadow: 0 0 0 1px rgba(0,0,0,.35); pointer-events: none; }
.empty-state { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; padding: 20px; color: var(--muted); font-size: 10px; text-align: center; pointer-events: none; }
.crop-help { margin: 7px 0 0; color: var(--muted); font-size: 9px; text-align: center; }

.preview-panel { display: grid; grid-template-rows: auto minmax(280px, 1fr) auto; overflow: hidden; }
.preview-heading { align-items: flex-start; }
.preview-heading > div:nth-child(2) { flex: 1; }
.preview-actions { display: flex; gap: 5px; }
.icon-action {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: white;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-weight: 800;
  text-decoration: none;
}
.icon-action[aria-disabled="true"] { opacity: .38; pointer-events: none; }
.hero-preview { position: relative; min-height: 0; display: grid; place-items: center; overflow: hidden; background: #edf1ef; border: 1px solid var(--line); border-radius: 5px; }
.result-canvas { width: min(94%, 780px); height: min(94%, 72vh); object-fit: contain; image-rendering: pixelated; }
.result-canvas:not([width]), .result-canvas[width="0"] { display: none; }
.preview-empty { position: absolute; inset: 0; display: grid; place-items: center; align-content: center; gap: 6px; color: var(--muted); text-align: center; pointer-events: none; }
.preview-empty img { width: 48px; height: 48px; opacity: .32; }
.preview-empty strong { color: var(--ink); font-size: 13px; }
.preview-empty span { font-size: 10px; }
.hero-preview:has(canvas[width]) .preview-empty { display: none; }

.preset-area { min-width: 0; max-width: 100%; padding-top: 11px; overflow: hidden; }
.preset-title { display: flex; justify-content: space-between; margin-bottom: 7px; font-size: 10px; }
.preset-title span { color: var(--muted); }
.variant-grid { width: 100%; min-width: 0; max-width: 100%; display: grid; grid-auto-flow: column; grid-auto-columns: 104px; gap: 6px; overflow-x: auto; padding-bottom: 3px; scroll-snap-type: x proximity; }
.variant-card { min-width: 0; min-height: 64px; display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 7px; padding: 6px; overflow: hidden; scroll-snap-align: start; border: 1px solid var(--line); border-radius: 4px; background: white; cursor: pointer; }
.variant-card:hover, .variant-card.selected { border-color: var(--green); background: var(--green-soft); }
.variant-card[aria-checked="true"] { border-color: var(--green); background: var(--green-soft); }
.variant-card canvas { width: 38px; height: 38px; object-fit: cover; image-rendering: pixelated; }
.variant-card h2 { min-width: 0; margin: 0; overflow: hidden; font-size: 9px; line-height: 1.25; text-overflow: ellipsis; }
.variant-card p, .variant-card .variant-stats, .variant-group-title { display: none; }

.mode-group { margin: 0; padding: 0; border: 0; }
.mode-group legend { margin-bottom: 7px; color: var(--muted); font-size: 9px; font-weight: 700; text-transform: uppercase; }
.mode-group label { display: block; margin-bottom: 6px; }
.mode-group input { position: absolute; opacity: 0; }
.mode-group label > span { position: relative; display: grid; gap: 2px; min-height: 52px; padding: 10px 10px 9px 35px; border: 1px solid var(--line); border-radius: 4px; cursor: pointer; }
.mode-group label > span::before { content: ""; position: absolute; top: 17px; left: 12px; width: 11px; height: 11px; border: 1px solid #9da9a4; border-radius: 50%; }
.mode-group input:checked + span { border-color: var(--green); background: var(--green-soft); }
.mode-group input:checked + span::before { border: 3px solid var(--green); background: white; }
.mode-group b { font-size: 11px; }
.mode-group small { color: var(--muted); font-size: 9px; }
.bag-control { margin-top: 12px; }

.generate-button, .basket-button {
  width: 100%;
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding: 0 14px;
  color: white;
  background: var(--green);
  border: 1px solid var(--green);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}
.generate-button:hover:not(:disabled), .basket-button:hover:not(:disabled) { background: var(--green-dark); }
.generate-button:disabled, .basket-button:disabled { opacity: .38; cursor: not-allowed; }
.generate-button b { font-size: 19px; }
.build-summary { margin-top: 15px; padding-top: 13px; border-top: 1px solid var(--line); }
.summary-heading { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 7px; font-size: 10px; }
.summary-heading span { color: var(--muted); }
.bag-panel { max-height: 190px; overflow: auto; color: var(--muted); font-size: 9px; line-height: 1.45; }
.bag-panel p { margin: 0; }
.bag-panel .bag-card { padding: 8px; margin-bottom: 5px; background: var(--surface); border-radius: 4px; }
.basket-button { justify-content: center; color: var(--green); background: white; }
.basket-button:hover:not(:disabled) { color: white; }
.orders-note { margin: 8px 0 0; color: var(--muted); font-size: 9px; line-height: 1.45; }

@media (max-width: 1080px) {
  .studio { grid-template-columns: 240px minmax(420px, 1fr); }
  .build-panel { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(220px, 1fr) minmax(220px, 1fr); gap: 10px 18px; }
  .build-panel .panel-heading { grid-column: 1 / -1; margin-bottom: 0; }
  .build-summary { margin-top: 0; padding: 0 0 0 18px; border-top: 0; border-left: 1px solid var(--line); grid-column: 2; grid-row: 2 / span 3; }
}

@media (max-width: 720px) {
  .studio-bar { height: 52px; }
  .studio-status span:last-child { display: none; }
  .app { height: auto; min-height: calc(100vh - 52px); padding: 8px; }
  .studio { display: flex; flex-direction: column; }
  .panel { overflow: visible; box-shadow: none; }
  .source-panel, .preview-panel, .build-panel { display: block; }
  .source-panel { order: 1; }
  .preview-panel { order: 2; }
  .build-panel { order: 3; }
  .stage { min-height: 0; max-height: 58vh; }
  .preview-panel { min-height: 520px; }
  .hero-preview { height: min(72vw, 430px); min-height: 270px; }
  .result-canvas { max-width: 96%; max-height: 96%; }
  .build-summary { margin-top: 15px; padding: 13px 0 0; border-top: 1px solid var(--line); border-left: 0; }
}