/* Match the existing studio3d.html shell and editor controls. */
:root {
  color-scheme: dark;
  --bg: #0E0F12;
  --panel: #16181D;
  --panel2: #1C1F26;
  --line: #262A31;
  --line2: #30353E;
  --ink: #E7E9EE;
  --t2: #A2ABB8;
  --t3: #828A98;
  --blue: #3182F6;
  --blue-d: #2670E8;
  --blue-soft: rgba(49,130,246,.14);
  --good: #16C088;
  --top: 56px;
  --rail: 72px;
  --side: 330px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 'Toss Product Sans','Pretendard',-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo',sans-serif;
  letter-spacing: -.02em;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
button,input,textarea,select { font: inherit; }
button,a,input,textarea,select { touch-action: manipulation; }
a { color: inherit; text-decoration: none; }
button,a,summary { cursor: pointer; }
button {
  border: 1px solid var(--line2);
  background: var(--panel2);
  color: var(--ink);
  border-radius: 10px;
  padding: 10px 13px;
  font-weight: 600;
  transition: background .12s, border-color .12s;
}
button:hover:not(:disabled),.file-button:hover { border-color: var(--t3); background: #252A34; }
button:disabled { opacity: .4; cursor: not-allowed; }
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,.file-button:focus-within { outline: 2px solid #76ACFF; outline-offset: 3px; }
[hidden] { display: none !important; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ic { width: 20px; height: 20px; flex: none; }
.top { height: var(--top); border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 12px; padding: 0 18px; background: var(--panel); }
.brand { display: flex; align-items: center; gap: 9px; font-size: 16px; font-weight: 700; letter-spacing: -.03em; white-space: nowrap; }
.logo { width: 24px; height: 24px; border-radius: 7px; background: linear-gradient(135deg,var(--blue),#6FA8F5); }
.tag { font-size: 10px; font-weight: 700; color: #78AEFF; background: var(--blue-soft); padding: 3px 7px; border-radius: 6px; white-space: nowrap; }
.brand .tag { font-size: 11px; margin-left: 4px; }
.topnav,.top-r { display: flex; align-items: center; gap: 6px; }
.top-r { margin-left: auto; }
.lnk { font-size: 13.5px; font-weight: 600; color: var(--t2); padding: 8px 12px; border-radius: 8px; }
.lnk:hover { background: var(--panel2); color: var(--ink); }
.account-link { border: 1px solid var(--line2); border-radius: 20px; padding: 7px 14px; }
.local-badge { font-size: 11px; color: var(--t2); padding: 0 10px; }
.app { display: grid; grid-template-columns: var(--rail) minmax(0,1fr); height: calc(100vh - var(--top)); height: calc(100dvh - var(--top)); }
.rail { background: var(--bg); border-right: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 14px 0; overflow-y: auto; }
.rail-item { width: 54px; min-height: 58px; border-radius: 14px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; color: var(--t3); border: 1px solid transparent; flex-shrink: 0; }
.rail-item .ic { width: 22px; height: 22px; }
.rail-item .rt { font-size: 10.5px; font-weight: 700; letter-spacing: -.01em; white-space: nowrap; }
.rail-item:hover { color: var(--ink); background: var(--panel2); }
.rail-item.on { color: #70A9FF; background: var(--blue-soft); border-color: rgba(49,130,246,.28); }
.rail-item:nth-child(4) { margin-top: 14px; }
.workspace { display: grid; grid-template-columns: var(--side) minmax(0,1fr); min-height: 0; }
.design-panel { padding: 20px 18px; background: var(--panel); border-right: 1px solid var(--line); overflow-y: auto; min-width: 0; scrollbar-width: thin; scrollbar-color: var(--line2) transparent; }
.panel-heading { display: flex; gap: 9px; align-items: center; }
.panel-heading .ic { color: var(--blue); }
h1 { font-size: 15px; margin: 0; font-weight: 650; }
.panel-description { color: var(--t2); font-size: 12px; line-height: 1.7; margin: 9px 0 23px; }
.section-title { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.section-title h2 { font-size: 13px; font-weight: 650; margin: 0; display: flex; align-items: center; gap: 7px; }
.section-title .tag { margin-left: auto; }
.presets { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; background: var(--panel2); padding: 4px; border: 1px solid var(--line); border-radius: 12px; margin-bottom: 20px; }
.presets button { text-align: left; padding: 10px 8px; font-size: 12px; border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--t2); }
.presets span { display: block; font-size: 10px; font-weight: 400; margin-top: 3px; }
.presets .selected,.presets .selected:hover:not(:disabled) { background: var(--blue); color: #fff; }
#aiPanel { border: 1px solid var(--line2); border-radius: 12px; padding: 12px; }
summary { font-size: 12px; font-weight: 600; list-style: none; display: flex; align-items: center; gap: 7px; }
summary::-webkit-details-marker { display: none; }
summary .ic { color: #78AEFF; width: 18px; height: 18px; }
.chevron { margin-left: auto; color: var(--t3); transition: transform .12s; }
details[open] .chevron { transform: rotate(180deg); }
.hint { font-size: 11px; color: var(--t2); line-height: 1.7; margin: 9px 0; }
.privacy-note { font-size: 11px; line-height: 1.7; color: var(--t3); margin: 10px 0 0; }
textarea,input,select { display: block; width: 100%; padding: 10px 11px; border: 1px solid var(--line2); background: var(--panel2); border-radius: 10px; color: var(--ink); min-width: 0; }
textarea { resize: vertical; line-height: 1.7; }
textarea::placeholder,input::placeholder { color: var(--t3); opacity: 1; }
label { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; font-weight: 600; color: var(--t2); margin: 0 0 7px; }
label span { font-weight: 400; color: var(--t3); font-size: 11px; }
input:focus,textarea:focus,select:focus { border-color: var(--blue); }
input:disabled,select:disabled { opacity: .45; }
.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.primary:hover:not(:disabled) { background: var(--blue-d); border-color: var(--blue-d); color: #fff; }
#askAI { width: 100%; display: flex; justify-content: space-between; margin-top: 8px; font-size: 12px; }
.divider { height: 1px; background: var(--line); margin: 20px 0; }
.text-button { margin-left: auto; border: 0; font-size: 11px; padding: 4px 7px; color: var(--t2); background: transparent; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 10px; margin-top: 16px; }
.result-panel { display: grid; grid-template-columns: minmax(0,1fr) 280px; grid-template-rows: minmax(260px,1fr) auto; min-width: 0; min-height: 0; }
.viewer-wrap { position: relative; display: flex; flex-direction: column; overflow: hidden; background: radial-gradient(120% 120% at 50% 0%,#14171D 0%,#0E0F12 70%); grid-column: 1; grid-row: 1; }
#viewer { flex: 1; min-height: 0; position: relative; touch-action: none; }
#viewer canvas { display: block; width: 100%; height: 100%; }
#loading { position: absolute; top: 45%; text-align: center; width: 100%; padding: 0 20px; font-size: 13px; color: var(--t2); }
.viewer-top,.viewer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 16px 18px; font-size: 11px; color: var(--t2); }
.viewer-top { position: absolute; z-index: 1; top: 0; width: 100%; pointer-events: none; }
.viewer-top span { display: flex; align-items: center; gap: 7px; }
.viewer-top i { width: 5px; height: 5px; background: var(--good); border-radius: 50%; }
.viewer-top button { pointer-events: auto; font-size: 11px; padding: 6px 10px; background: rgba(28,31,38,.9); }
.viewer-bottom { flex-wrap: wrap; padding-top: 10px; padding-bottom: 12px; font-size: 10px; }
#sizeLabel { font-size: 12px; font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.result-info { grid-column: 1; grid-row: 2; border-top: 1px solid var(--line); background: var(--panel); padding: 18px; }
#buildStatus { font-size: 13px; font-weight: 650; margin: 0; }
#geometryNotes:empty { display: none; }
.download-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.download-row>* { font-size: 12px; flex: 1; text-align: center; white-space: nowrap; }
.download-row .primary { flex: 1.4; }
.file-button { display: inline-flex; align-items: center; justify-content: center; margin: 0; border: 1px solid var(--line2); background: var(--panel2); color: var(--ink); border-radius: 10px; padding: 10px 12px; cursor: pointer; position: relative; }
.file-button input { position: absolute; width: 1px; height: 1px; opacity: 0; padding: 0; }
.file-button:has(input:disabled) { opacity: .4; cursor: not-allowed; }
.batch-panel { grid-column: 2; grid-row: 1 / 3; border-left: 1px solid var(--line); background: var(--panel); padding: 20px 18px; overflow-y: auto; min-width: 0; scrollbar-width: thin; scrollbar-color: var(--line2) transparent; }
.batch-panel .section-title .ic { width: 18px; height: 18px; color: var(--t2); }
.batch-intro { font-size: 12px; line-height: 1.8; color: var(--t2); margin: 18px 0 24px; }
#names { min-height: 172px; }
.batch-actions { display: flex; flex-direction: column; align-items: stretch; gap: 12px; margin-top: 10px; }
.batch-actions .privacy-note { margin: 0; }
.batch-actions button { font-size: 12px; }
#batchDownload { color: #8CBAFF; background: var(--blue-soft); border-color: rgba(49,130,246,.28); }
#batchDownload:hover:not(:disabled) { background: rgba(49,130,246,.24); }
#batchStatus { font-size: 12px; color: #8CBAFF; margin-bottom: 0; }
#batchStatus:empty { display: none; }
.batch-help { margin: 20px 0; padding-top: 18px; border-top: 1px solid var(--line); color: var(--t3); font-size: 11px; line-height: 1.8; }
#proposal { border-left: 3px solid var(--blue); padding: 10px 12px; margin-top: 12px; background: var(--blue-soft); font-size: 12px; }
#proposal p { margin: 0 0 8px; }
#proposalValues { display: grid; grid-template-columns: 1fr 1fr; margin: 10px 0; font-size: 11px; }
#proposalValues dt { color: var(--t2); }
#proposalValues dd { margin: 0; }
#proposal button { font-size: 12px; }
footer { font-size: 10px; color: var(--t3); display: flex; justify-content: space-between; gap: 10px; padding-top: 6px; }
footer a:hover { color: var(--ink); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 20; padding: 10px 16px; background: var(--blue); border-radius: 8px; color: #fff; }
.skip-link:focus { top: 8px; }
@media (max-width: 1199px) {
  :root { --side: 310px; }
  .result-panel { display: block; overflow-y: auto; }
  .viewer-wrap { height: max(360px,55vh); }
  .batch-panel { border-left: 0; border-top: 1px solid var(--line); overflow: visible; }
  .batch-intro br { display: none; }
  .batch-actions { flex-direction: row; flex-wrap: wrap; align-items: center; }
  .batch-actions .privacy-note { flex-basis: 100%; }
}
@media (max-width: 760px) {
  body { overflow: auto; }
  .top { padding: 0 14px; position: sticky; top: 0; z-index: 5; }
  .topnav,.local-badge { display: none; }
  .brand { gap: 7px; font-size: 15px; }
  .brand .tag { font-size: 10px; margin-left: 0; }
  .account-link { font-size: 12px; padding: 6px 12px; }
  .app { display: block; height: auto; }
  .rail { position: sticky; top: var(--top); z-index: 4; flex-direction: row; width: 100%; border-right: 0; border-bottom: 1px solid var(--line); padding: 8px 10px; gap: 8px; justify-content: flex-start; overflow-x: auto; scrollbar-width: none; }
  .rail::-webkit-scrollbar { display: none; }
  .rail-item { width: auto; min-height: 44px; flex-direction: row; gap: 6px; border-radius: 12px; padding: 8px 12px; }
  .rail-item .ic { width: 18px; height: 18px; }
  .rail-item .rt { font-size: 11px; }
  .rail-item:nth-child(4) { margin-top: 0; }
  .workspace { display: grid; grid-template-columns: minmax(0,1fr); grid-template-areas: 'preview' 'design' 'export' 'batch'; }
  .result-panel { display: contents; }
  .viewer-wrap { grid-area: preview; height: 320px; }
  .design-panel { grid-area: design; border-right: 0; border-top: 1px solid var(--line); overflow: visible; padding: 20px; }
  .result-info { grid-area: export; padding: 20px; }
  .batch-panel { grid-area: batch; padding: 20px; }
  #designPanel,#batchPanel,#productionPlan { scroll-margin-top: 128px; }
  .panel-description br { display: none; }
  .panel-description { margin-bottom: 20px; }
  .viewer-top,.viewer-bottom { padding-left: 16px; padding-right: 16px; }
  .viewer-bottom span:last-child { font-size: 9px; }
  input,select,textarea { font-size: 16px; }
  .presets button { min-height: 54px; }
  .download-row .primary { flex-basis: 100%; }
  .download-row>* { min-height: 44px; }
  .batch-actions button { min-height: 44px; flex: 1; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
/* Manufacturing preparation lives in the existing editor shell. */
.production-check,.process-settings { border: 1px solid var(--line2); padding: 11px 12px; border-radius: 10px; margin: 12px 0; }
.production-check summary { font-size: 11px; }
#productionCheck[data-state="warning"] { color: #F2BD65; }
#productionCheck[data-state="ready"] { color: #8BB8FF; }
.production-check .hint { margin-bottom: 0; }
.process-settings { margin: 0 0 20px; }
.process-settings .fields { gap: 12px 8px; }
.process-settings input,.process-settings select { font-size: 12px; padding: 8px; }
.process-settings label { font-size: 10px; }
.check-option { display: flex; align-items: flex-start; justify-content: flex-start; gap: 8px; margin: 14px 0; cursor: pointer; }
.check-option input { width: 15px; height: 15px; flex: none; margin: 3px 0 0; accent-color: var(--blue); }
.check-option>span { color: var(--ink); font-size: 11px; }
.check-option small { display: block; margin-top: 4px; color: var(--t3); font-size: 10px; line-height: 1.6; }
.production-actions { display: flex; flex-direction: column; gap: 8px; }
.production-actions button,#downloadProduction { font-size: 12px; width: 100%; }
#productionStatus { font-size: 11px; color: #93BDFF; line-height: 1.7; overflow-wrap: anywhere; }
#productionStatus:empty { display: none; }
#productionPlan { border-top: 1px solid var(--line); margin-top: 18px; padding-top: 14px; }
#planSummary { font-size: 13px; margin: 0; line-height: 1.7; }
#plateSelect { font-size: 11px; margin: 12px 0; }
#platePreview svg { display: block; width: 100%; max-height: 300px; border: 1px solid var(--line2); border-radius: 8px; }
.plan-details { margin: 16px 0; }
.plan-details summary { font-size: 11px; }
.plan-table-wrap { overflow-x: auto; margin: 10px 0; }
.plan-table-wrap table { width: 100%; border-collapse: collapse; font-size: 10px; table-layout: fixed; }
.plan-table-wrap th,.plan-table-wrap td { text-align: left; padding: 7px 4px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; vertical-align: top; }
.plan-table-wrap th { color: var(--t3); font-weight: 500; }
.plan-table-wrap .needs-review td:last-child { color: #F2BD65; }
.legacy-batch { border-top: 1px solid var(--line); margin-top: 18px; padding-top: 12px; }
.legacy-batch #batchDownload { background: transparent; color: var(--t2); border-color: var(--line2); font-size: 11px; }
@media (min-width:1200px) { .result-info { max-height: 42vh; overflow-y: auto; scrollbar-width: thin; } }
@media (max-width:760px) { .process-settings input,.process-settings select { font-size: 16px; } .production-actions button,#downloadProduction { min-height: 44px; } }

#processSummary { display: block; margin-top: 5px; font-size: 10px; font-weight: 400; color: var(--t2); }

.plan-table-wrap { max-height: 240px; overflow: auto; scrollbar-width: thin; }

@media (max-width:760px) { #planSummary { scroll-margin-top: 144px; } }

#recordProduction { width:100%; margin-top:8px; font-size:12px; }
.evidence-entry { margin-top:22px; padding-top:18px; border-top:1px solid var(--line); }
#openEvidence { width:100%; display:flex; justify-content:space-between; font-size:12px; }
#evidenceDialog { width:min(980px,calc(100vw - 40px)); max-height:calc(100dvh - 40px); padding:0; border:1px solid var(--line2); border-radius:18px; background:#14161B; color:var(--ink); box-shadow:0 24px 90px #0009; }
#evidenceDialog::backdrop { background:rgba(0,0,0,.7); backdrop-filter:blur(4px); }
.evidence-header { position:sticky; top:0; z-index:2; background:#14161B; padding:22px 26px 18px; display:flex; justify-content:space-between; gap:16px; border-bottom:1px solid var(--line); }
.evidence-header h2 { margin:6px 0 0; font-size:22px; letter-spacing:-.6px; }
.evidence-header button { align-self:center; min-height:40px; }
.eyebrow { color:#8BB8FF; font-size:10px; letter-spacing:.8px; }
.evidence-body { padding:12px 26px 26px; }
.evidence-toolbar { display:flex; gap:8px; flex-wrap:wrap; margin:14px 0; }
.evidence-toolbar button,.evidence-toolbar .file-button { min-height:40px; }
#evidenceStatus { color:#9EC4FF; font-size:12px; line-height:1.7; overflow-wrap:anywhere; }
#evidenceRunCount { scroll-margin-top:120px; }
.evidence-tabs { display:flex; gap:4px; padding:4px; margin:16px 0; border:1px solid var(--line2); border-radius:10px; width:fit-content; }
.evidence-tabs button { border:0; background:transparent; color:var(--t2); min-width:116px; }
.evidence-tabs [aria-selected="true"] { color:#B9D5FF; background:#203552; }
.study-intro { margin:22px 0; }
.study-intro h3 { font-size:20px!important; margin:8px 0; }
.study-selection { display:flex; justify-content:space-between; align-items:center; gap:12px; margin:20px 0 10px; }
.study-selection button { font-size:11px; }
.study-table-wrap { overflow:auto; border:1px solid var(--line2); border-radius:10px; margin:14px 0; scrollbar-width:thin; }
#studyRunTable { max-height:310px; }
.study-table-wrap table { border-collapse:collapse; width:100%; font-size:12px; line-height:1.6; }
.study-table-wrap th,.study-table-wrap td { text-align:left; padding:11px 12px; border-bottom:1px solid var(--line); vertical-align:top; overflow-wrap:anywhere; }
.study-table-wrap thead th { position:sticky; top:0; background:#1C2028; color:var(--t2); z-index:1; }
.study-table-wrap tbody th { font-weight:500; }
.study-table-wrap th:first-child,.study-table-wrap td:first-child { min-width:96px; }
.study-table-wrap td:not(:first-child) { min-width:160px; }
.study-table-wrap select { font-size:12px; min-width:92px; padding:8px; margin:0; }
.study-table-wrap strong,.study-table-wrap small { display:block; }
.study-table-wrap small { color:var(--t2); margin-top:4px; }
.study-selected { background:#18263B; }
#studyReadiness { padding:14px 16px; border-radius:10px; background:#172B45; color:#AACCFF; font-size:16px!important; }
#studyReadiness[data-state="warning"] { background:#30271A; color:#F0C27D; }
.study-conditions { font-size:12px; color:var(--t2); line-height:1.8; margin:20px 0; }
.study-conditions summary { font-size:12px; }
#studyChanges p { margin:10px 0; }
#studyReasons { padding-left:20px; }
#studyReasons li { margin:8px 0; }
#studyExport { min-height:44px; }
@media(max-width:760px) { #evidenceStudyPanel>.fields { grid-template-columns:1fr; } .study-table-wrap { max-width:100%; } .study-table-wrap td:not(:first-child) { min-width:136px; } }
.evidence-empty { padding:36px 12px; text-align:center; line-height:1.9; color:var(--t2); }
.evidence-empty h3 { color:var(--ink); font-size:18px; }
.evidence-grid { display:grid; grid-template-columns:minmax(0,1.2fr) minmax(0,1fr); gap:28px; margin-top:24px; }
.evidence-grid>* { min-width:0; }
#evidenceFields { padding:0; margin:0; border:0; min-width:0; }
#evidenceFields legend { font-size:15px; font-weight:600; margin-bottom:18px; }
#evidenceDialog h3 { font-size:14px; line-height:1.7; }
#evidenceDialog input,#evidenceDialog select,#evidenceDialog textarea { box-sizing:border-box; }
#evidenceParts { display:flex; flex-direction:column; gap:10px; margin:14px 0 20px; max-height:330px; overflow:auto; scrollbar-width:thin; }
.evidence-part { display:grid; grid-template-columns:minmax(68px,1fr) 83px minmax(115px,1.4fr); gap:8px; align-items:center; padding-bottom:10px; border-bottom:1px solid var(--line); }
.evidence-part strong { display:block; font-size:12px; overflow-wrap:anywhere; }
.evidence-part small { display:block; font-size:10px; color:var(--t3); margin-top:5px; }
.evidence-part select { font-size:11px; padding:9px 6px; min-width:0; margin:0; }
.evidence-comparison { padding:18px; border:1px solid #29436B; border-radius:12px; background:#152136; margin-bottom:24px; }
.evidence-comparison h3 { font-size:17px!important; margin:10px 0; }
.evidence-comparison .hint { color:#A8B9D2; }
.evidence-run { padding:16px; border:1px solid var(--line2); border-radius:12px; margin-top:12px; }
.evidence-run h4 { margin:0 0 8px; font-size:13px; }
.evidence-run .hint { overflow-wrap:anywhere; white-space:pre-wrap; }
.evidence-run summary { font-size:11px; }
.evidence-run button { font-size:12px; margin-top:12px; width:100%; }
.evidence-delete { border-top:1px solid var(--line); margin-top:24px; padding-top:16px; font-size:12px; }
.evidence-delete button { font-size:11px; }
#evidenceDeleteFinal { color:#FFC2BC; border-color:#74403F; margin-right:8px; }
@media(max-width:760px) {
 #evidenceDialog { width:calc(100vw - 16px); max-height:calc(100dvh - 16px); border-radius:14px; }
 .evidence-header { padding:16px; }
 .evidence-body { padding:12px 16px 20px; }
 .evidence-grid { grid-template-columns:minmax(0,1fr); gap:24px; }
 #evidenceDialog input,#evidenceDialog select,#evidenceDialog textarea { font-size:16px; }
 .evidence-part { grid-template-columns:1fr 1fr; }
 .evidence-part>div { grid-column:1/-1; display:flex; justify-content:space-between; gap:8px; }
 .evidence-part small { margin:0; }
 #evidenceDialog button,.evidence-toolbar .file-button { min-height:44px; }
}

.pilot-panel { margin-top:24px; padding:18px; border:1px solid var(--line2); border-radius:12px; background:var(--bg); }
.pilot-panel summary { font-size:13px; color:var(--ink); cursor:pointer; }
.pilot-panel h4 { line-height:1.7; overflow-wrap:anywhere; }
.pilot-panel button { margin-top:10px; min-height:42px; max-width:100%; white-space:normal; }
.pilot-notice { padding:12px; border-radius:8px; background:#30271A; color:#F0C27D; font-size:12px; line-height:1.8; }
#pilotPlans { overflow-wrap:anywhere; }
@media(max-width:520px) { .pilot-panel .fields { grid-template-columns:1fr; } }