:root {
  --bg: #f4f5f4;
  --panel: #ffffff;
  --ink: #17201f;
  --muted: #5d6a68;
  --line: #e1e5e3;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --accent-soft: #e3f2ef;
  --warn: #b42318;
  --warn-soft: #fdecea;
  --stage: #e9ecea;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121615; --panel: #1a201f; --ink: #e7ecea; --muted: #9aa8a5; --line: #2b3432;
    --accent: #2bb3a3; --accent-ink: #06231f; --accent-soft: #173a35; --warn: #ff8a7a; --warn-soft: #3a1d1a;
    --stage: #0e1211; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--ink); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }

.app { display: grid; grid-template-columns: 400px 1fr; height: 100vh; }
.panel { background: var(--panel); border-right: 1px solid var(--line); overflow-y: auto; padding: 18px 18px 40px; }
.stage { position: relative; background: var(--stage); min-height: 0; }
#viewer { position: absolute; inset: 0; }
#viewer canvas { display: block; width: 100%; height: 100%; touch-action: none; }

.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; }
.logo { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.logo svg { width: 26px; height: 26px; }
.brand h1 { font-size: 18px; margin: 0; letter-spacing: -.01em; }
.brand p { margin: 0; color: var(--muted); font-size: 12.5px; }

.step { border-top: 1px solid var(--line); padding: 14px 0 6px; }
.step h2 { font-size: 15px; margin: 0 0 10px; display: flex; align-items: center; gap: 8px; }
.step h3 { font-size: 13px; margin: 14px 0 6px; color: var(--muted); font-weight: 600; }
.num { width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-size: 12px; display: inline-grid; place-items: center; }
.step.locked { opacity: .45; pointer-events: none; }

.drops { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
.drop { border: 1.5px dashed var(--line); border-radius: var(--radius); padding: 14px 10px; text-align: center; cursor: pointer; display: grid; gap: 4px; transition: border-color .15s, background .15s; }
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop.has { border-style: solid; border-color: var(--accent); }
.drop-title { font-weight: 600; }
.drop-file { color: var(--muted); font-size: 12px; word-break: break-all; }

.btn { font: inherit; border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 8px; padding: 8px 12px; cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; width: 100%; padding: 10px; }
.btn.small { padding: 5px 9px; font-size: 12.5px; }
.row { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }

.hint { color: var(--muted); font-size: 12.5px; margin: 6px 0; }
.ok-note { background: var(--accent-soft); border-radius: 8px; padding: 8px 10px; font-size: 12.5px; margin: 10px 0 0; }
.alert { background: var(--warn-soft); color: var(--warn); border-radius: 8px; padding: 9px 11px; margin-bottom: 10px; font-size: 13px; white-space: pre-wrap; }

.check { display: flex; gap: 8px; align-items: flex-start; margin: 6px 0; cursor: pointer; }
.check input { margin-top: 3px; accent-color: var(--accent); }

.chips { list-style: none; padding: 0; margin: 4px 0; display: grid; gap: 5px; }
.chips li { display: flex; align-items: center; gap: 8px; padding: 6px 9px; border-radius: 8px; border: 1px solid var(--line); font-size: 13px; }
.chips li i { width: 12px; height: 12px; border-radius: 50%; background: var(--c); flex: none; }
.chips li.active { border-color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.chips li.done { color: var(--muted); }
.chips li.done::after { content: "✓"; margin-left: auto; color: var(--accent); font-weight: 700; }

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.card { border: 1.5px solid var(--line); border-radius: var(--radius); padding: 8px; cursor: pointer; text-align: center; background: var(--panel); color: var(--ink); font: inherit; }
.card:hover { border-color: var(--accent); }
.card.sel { border-color: var(--accent); background: var(--accent-soft); }
.card svg { width: 100%; height: 76px; display: block; }
.card .up { fill: color-mix(in srgb, var(--accent) 22%, transparent); stroke: var(--accent); stroke-width: 1.2; }
.card .lo { fill: none; stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 2; }
.card span { font-weight: 600; font-size: 13px; }

details { margin: 10px 0; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; }
details summary { cursor: pointer; font-weight: 600; font-size: 13px; padding: 2px 0; }
details[open] summary { margin-bottom: 8px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.grid2 label, .field { display: grid; gap: 3px; font-size: 12.5px; color: var(--muted); }
.field { margin: 10px 0; }
input[type=number], input[type=text] { font: inherit; color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 7px; padding: 6px 8px; width: 100%; }
input:focus { outline: 2px solid color-mix(in srgb, var(--accent) 40%, transparent); border-color: var(--accent); }
.colors { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.colors label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
input[type=color] { width: 100%; height: 30px; border: 1px solid var(--line); border-radius: 7px; background: none; padding: 2px; }

.progress { display: flex; gap: 10px; align-items: center; margin-top: 10px; color: var(--muted); }
.spin { width: 16px; height: 16px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.res-jaw { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; margin-bottom: 10px; }
.res-jaw h4 { margin: 0 0 4px; font-size: 14px; }
.res-meta { color: var(--muted); font-size: 12.5px; margin-bottom: 8px; }
.dl { display: flex; flex-wrap: wrap; gap: 6px; }
.dl a { text-decoration: none; font-size: 12.5px; border: 1px solid var(--accent); color: var(--accent); border-radius: 7px; padding: 5px 9px; }
.dl a:hover { background: var(--accent-soft); }

.overlay { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); background: color-mix(in srgb, var(--panel) 88%, transparent); border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px; font-size: 13px; pointer-events: none; max-width: calc(100% - 32px); text-align: center; }
.legend { position: absolute; left: 14px; bottom: 14px; background: color-mix(in srgb, var(--panel) 88%, transparent); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; font-size: 12px; }

#step-account h2 { margin-bottom: 4px; }
.account { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.account .row { margin-top: 0; }
.acc-email { font-weight: 600; word-break: break-all; }
.acc-credits { color: var(--accent); font-weight: 700; font-size: 13px; }
#cost-line.warn { color: var(--warn); font-weight: 600; }
.case { border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 10px; margin-bottom: 8px; }
.case-head { display: flex; justify-content: space-between; gap: 8px; font-weight: 600; font-size: 13px; }
.case .dl { margin-top: 6px; align-items: center; }
.case .dl b { font-size: 12px; min-width: 62px; }
.chip { font-size: 11.5px; font-weight: 600; border-radius: 999px; padding: 2px 8px; background: var(--accent-soft); color: var(--accent); white-space: nowrap; }
.chip.error { background: var(--warn-soft); color: var(--warn); }
.chip.queued, .chip.processing { background: var(--line); color: var(--muted); }
input[type=email] { font: inherit; color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 7px; padding: 8px; width: 100%; }

select { font: inherit; color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 7px; padding: 6px 8px; width: 100%; }
.seg { display: grid; gap: 4px; margin-bottom: 8px; }
.seg label { display: flex; gap: 8px; align-items: center; border: 1px solid var(--line); border-radius: 8px; padding: 6px 9px; cursor: pointer; font-size: 13px; }
.seg label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.seg input { accent-color: var(--accent); }
.rot { display: grid; gap: 5px; }
.rot > div { display: grid; grid-template-columns: 1fr 34px 34px; gap: 5px; align-items: center; font-size: 13px; }
.rot .btn.small { padding: 4px 0; font-weight: 700; }
.step-deg { display: flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--muted); }
.step-deg input { width: 70px; }
.views { display: flex; flex-wrap: wrap; gap: 5px; }
.check.confirm { margin-top: 10px; padding: 8px 10px; border: 1.5px solid var(--accent); border-radius: 8px; background: var(--accent-soft); font-weight: 600; }
.check.inline { margin: 0; align-items: center; font-size: 12.5px; }
.check.inline input { margin-top: 0; }
.warn-text { color: var(--warn); }
.warn-text:empty { display: none; }
input:disabled { opacity: .5; }
.schema { display: grid; grid-template-columns: 1.6fr 1fr; gap: 6px; align-items: center; margin: 4px 0 10px; padding: 6px; border-radius: 8px; background: color-mix(in srgb, var(--accent-soft) 45%, transparent); }
.schema svg { width: 100%; height: auto; display: block; }
.schema .base { fill: color-mix(in srgb, var(--muted) 22%, var(--panel)); stroke: var(--muted); stroke-width: .5; }
.schema .model { fill: #e9c8b4; stroke: #b07a68; stroke-width: .4; }
.schema .arch { fill: none; stroke: #c98576; stroke-width: 7; stroke-linecap: round; opacity: .85; }
.schema .cut { stroke: var(--accent); stroke-width: .8; stroke-dasharray: 2.5 1.5; }
.schema .dim { stroke: var(--ink); stroke-width: .5; }
.schema .fillet { fill: none; stroke: var(--accent); stroke-width: .9; }
.schema .gap { stroke: var(--muted); stroke-width: .5; stroke-dasharray: 1.2 1; }
.schema text { font-size: 4.2px; fill: var(--ink); font-family: system-ui, sans-serif; }
.schema text.lbl { fill: var(--muted); font-size: 3.8px; }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; grid-template-rows: 52vh auto; height: auto; }
  .stage { grid-row: 1; height: 52vh; position: sticky; top: 0; z-index: 1; }
  .panel { grid-row: 2; border-right: 0; padding: 16px 16px 40px; }
}
.res-meta.files { font-family: ui-monospace, Consolas, monospace; font-size: 11.5px; word-break: break-all; }
.paint-box { margin-top: 14px; padding-top: 10px; border-top: 1px solid var(--line, rgba(127,127,127,.25)); }
.paint-box input[type=range] { width: 100%; }
.logo-row { display: flex; align-items: flex-end; gap: 10px; flex-wrap: wrap; }
.logo-row .field { flex: 1 1 200px; }
#r-logo-img { max-height: 40px; max-width: 120px; object-fit: contain; background: #fff; border-radius: 4px; padding: 2px; }
.ok-note:empty { display: none; }
#btn-zip { width: 100%; margin: 4px 0 12px; }
.case .btn.zip { margin-top: 6px; }
.unlock-box { background: var(--accent-soft); border-radius: 10px; padding: 10px 12px; margin: 4px 0 12px; }
.unlock-box p { margin: 0 0 8px; font-size: 13px; }
.unlock-box .btn { width: 100%; }

/* compra de creditos (Pix) */
.btn.small.buy { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.packages { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 10px 0 4px; }
.pkg { font: inherit; text-align: left; border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: var(--radius); padding: 10px; cursor: pointer; display: grid; gap: 2px; position: relative; }
.pkg:hover { border-color: var(--accent); background: var(--accent-soft); }
.pkg:disabled { opacity: .5; cursor: not-allowed; }
.pkg b { font-size: 15px; }
.pkg .price { font-size: 16px; font-weight: 700; color: var(--accent); }
.pkg .unit { color: var(--muted); font-size: 12px; }
.pkg .off { position: absolute; top: 8px; right: 8px; background: var(--accent); color: var(--accent-ink); border-radius: 6px; padding: 1px 6px; font-size: 11px; font-weight: 700; }
.pix-head { display: flex; justify-content: space-between; align-items: baseline; margin: 8px 0; }
.pix-qr { display: block; width: 220px; max-width: 100%; aspect-ratio: 1; margin: 6px auto 10px; background: #fff; border-radius: 8px; padding: 6px; }
#pix-code { width: 100%; font: 12px/1.35 ui-monospace, Consolas, monospace; resize: none; word-break: break-all; color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 7px; padding: 6px 8px; }