:root{--paper:#faf9f6;--stage:#f5f3ee;--ink:#302e29;--muted:#979187;--line:#e4dfd6;--accent:#b5734d}*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;background:var(--paper);color:var(--ink);font:14px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input{font:inherit}button{border:0;cursor:pointer;color:var(--ink);background:transparent;padding:10px 15px;border-radius:7px;white-space:nowrap;transition:background .15s,color .15s}button:hover{background:#eeeae2}button:disabled{opacity:.3;cursor:default}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}input{min-width:0;width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:6px;background:#fffdf9;color:var(--ink);outline:none}input:focus{border-color:var(--accent)}main{height:100dvh;min-height:440px;display:flex;flex-direction:column}.studio-header{height:72px;flex-shrink:0;padding:0 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.wordmark{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font:23px Georgia,"Songti SC",serif;letter-spacing:3px}.brand-mark{width:24px;height:24px;border:1px solid #777065;position:relative;display:block}.brand-mark:before{content:"";position:absolute;top:0;bottom:0;left:9px;border-left:1px solid #777065}.brand-mark:after{content:"";position:absolute;top:13px;left:9px;right:0;border-top:1px solid #777065}.brand-caption{font:11px -apple-system,sans-serif;color:var(--muted);letter-spacing:1px;padding-left:10px;border-left:1px solid var(--line)}.header-tools{display:flex;align-items:center;gap:18px}.size-trigger{font-size:12px;color:#797164;font-variant-numeric:tabular-nums}.size-trigger:after{content:" ↗";font-size:11px;color:#ada496}.quiet{font-size:12px;color:#80786c}.finish{background:#36342e;color:#fbfaf5;padding:10px 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var(--line);background:var(--paper)}.footer-note{flex:1}.footer-note strong{display:block;font:17px Georgia,"Songti SC",serif;font-weight:400;letter-spacing:1px;margin-bottom:6px}.footer-note span{font-size:11px;color:var(--muted)}.main-tools{display:flex;gap:9px;align-items:center}.add-button{min-width:126px;padding:14px 20px;font-size:13px;border:1px solid #cfc4b3;background:#fdfbf6}.add-button .divider-icon{display:inline-block;width:17px;height:17px;border:1px solid #b9ad9a;vertical-align:-3px;margin-right:10px;position:relative}.divider-icon.vertical:after{content:"";position:absolute;top:1px;bottom:1px;left:7px;border-left:1.5px solid var(--accent)}.divider-icon.horizontal:after{content:"";position:absolute;left:1px;right:1px;top:7px;border-top:1.5px solid var(--accent)}.add-button:hover,.add-button.active{background:#eee5d8;border-color:#b99a7d}.layout-trigger{font-size:12px;color:#968673;margin-right:12px}.history-tools{display:flex;border-left:1px solid var(--line);padding-left:10px;gap:3px;margin-left:8px}.history-tools button{font-size:22px;padding:8px 11px}.save-state{position:absolute;right:30px;bottom:22px;font-size:10px;color:#b0a89b;z-index:1}.save-state.failed{color:#a76b48}.pending-hint{position:absolute;top:74px;left:50%;transform:translateX(-50%);color:#916342;font-size:12px;padding:9px 16px;background:#faf3e8;border:1px solid #e6d3be;border-radius:6px}.pending-hint button{font-size:16px;padding:0 0 0 15px;color:#a9886b}.sheet-backdrop{position:fixed;inset:0;background:#3d332925;z-index:20;display:flex;align-items:center;justify-content:center;padding:24px;backdrop-filter:blur(3px)}.sheet{width:430px;max-width:100%;max-height:85dvh;overflow:auto;background:var(--paper);border:1px solid #ded7cb;border-radius:12px;box-shadow:0 25px 100px #392b1a20;padding:26px}.sheet.wide{width:520px}.sheet-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:23px}.sheet-header h2{font:22px Georgia,"Songti SC",serif;font-weight:400;letter-spacing:1px;margin:0}.sheet-close{font-size:24px;color:#988b79;padding:3px 10px}.sheet p{font-size:12px;color:#988b7a;line-height:1.8}.field{margin-bottom:18px}.field label{display:block;font-size:12px;color:#837564;margin-bottom:9px}.input-unit{display:flex;align-items:center;gap:13px}.input-unit span{font-size:11px;color:#aaa093}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.advanced{margin:0 0 20px;border-top:1px solid var(--line);padding-top:14px}.advanced summary{font-size:12px;color:#a28f78;cursor:pointer;margin-bottom:16px}.full{width:100%}.primary{background:#3e382f;color:#fffaf2}.primary:hover{background:#574b3c}.secondary{border:1px solid var(--line);background:#fffdf8}.sheet-note{font-size:11px;color:#a39889;line-height:1.8;margin-bottom:20px}.template-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.template-choice{display:flex;align-items:center;gap:18px;padding:18px;background:#fcfbf7;border:1px solid var(--line);font-size:12px;color:#776954}.mini-plan{width:56px;height:42px;display:flex;flex-shrink:0;border:2px solid #b5a895;background:#f3eee4}.mini-plan .plan-column{flex:1;display:flex;flex-direction:column}.mini-plan .plan-column+.plan-column{border-left:2px solid #b5a895}.mini-plan .plan-cell{flex:1}.mini-plan .plan-cell+.plan-cell{border-top:2px solid #b5a895}.project-card{border-bottom:1px solid var(--line);padding:15px 0}.project-title{font-size:13px;font-weight:500;display:flex;justify-content:space-between;align-items:center;gap:10px}.project-card p{margin:6px 0}.project-menu{display:flex;gap:5px}.project-menu button{font-size:11px;color:#a19483;padding:6px 10px}.actions{display:flex;gap:9px;margin-top:18px}.actions>*{flex:1}.check{display:flex;align-items:flex-start;gap:10px;padding:14px 0;border-bottom:1px solid var(--line)}.check-icon{font-size:13px;color:#8f846e}.check-icon.bad{color:#b77850}.check strong{font-size:12px;font-weight:500}.check p{font-size:11px;margin:4px 0 0}.summary-line{font-size:12px;color:#8e7d66;margin:14px 0 20px}.file-actions{display:flex;gap:7px;margin-top:10px}.file-actions button{flex:1;font-size:11px;color:#9a876e}.error{font-size:11px;color:#ac6d49;margin-top:7px}#toast{position:fixed;bottom:130px;left:50%;transform:translateX(-50%);padding:11px 18px;background:#3e382fee;color:#fffbf5;border-radius:7px;box-shadow:0 4px 20px #30261915;z-index:40;font-size:12px;max-width:90%;text-align:center;display:none}
@media(max-width:650px){.studio-header{height:61px;padding:0 18px;gap:8px}.wordmark{font-size:21px;gap:9px}.brand-caption{display:none}.header-tools{gap:3px}.size-trigger{font-size:10px;padding:8px 6px}.quiet{font-size:11px;padding:8px}.finish{font-size:11px;padding:9px 12px}.finish span{margin-left:5px}.canvas-top{top:16px;left:18px;right:18px}.view-switch button{padding:7px 12px}.canvas-options{gap:2px}.canvas-options button{padding:8px;font-size:10px}.workbench-footer{display:block;padding:15px 17px calc(18px + env(safe-area-inset-bottom))}.footer-note{display:none}.main-tools{width:100%;gap:8px;flex-wrap:wrap;justify-content:center}.add-button{flex:1;min-width:0;padding:13px 12px;font-size:12px;order:0}.divider-icon{margin-right:7px!important}.layout-trigger{width:calc(100% - 102px);text-align:left;margin:0;order:1;padding:12px 4px 0;font-size:11px}.history-tools{order:2;border:0;margin:0;padding:4px 0 0}.history-tools button{padding:4px 8px;font-size:23px}.context-bar{bottom:34px;font-size:11px;gap:7px;min-height:34px}.context-bar .context-size{font-size:11px}.workspace-tag{display:none}.save-state{bottom:10px;right:18px;font-size:9px}.pending-hint{top:64px;white-space:nowrap;font-size:11px}.sheet-backdrop{align-items:flex-end;padding:0;backdrop-filter:blur(2px)}.sheet{width:100%;max-height:85dvh;padding:25px 22px calc(25px + env(safe-area-inset-bottom));border-radius:16px 16px 0 0;border-bottom:0}.sheet-header{margin-bottom:20px}.sheet-header h2{font-size:21px}#toast{bottom:150px}.field-grid{gap:0 12px}}
@media(min-width:1400px){.workbench-footer{padding-left:60px;padding-right:60px}.studio-header{padding:0 60px}.canvas-top{left:60px;right:60px}.workspace-tag{left:60px}.save-state{right:60px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

@media(max-width:650px){.main-tools{display:grid;grid-template-columns:1fr 1fr;gap:8px}.add-button{width:100%;grid-row:1;min-width:0}.layout-trigger{grid-row:2;grid-column:1;width:auto;padding:10px 4px;text-align:left}.history-tools{grid-row:2;grid-column:2;justify-content:flex-end;padding:0}.history-tools button{min-width:40px;min-height:40px}}

@media(max-width:650px){.workspace-tag{display:block;left:18px;bottom:10px;font-size:9px;letter-spacing:0}}
@media(max-width:360px){.studio-header{padding:0 12px}.brand-mark{display:none}.wordmark{font-size:20px}.size-trigger{font-size:9px}.finish{padding:9px 10px}.quiet{padding:8px 6px}}

.production-details{border-top:1px solid var(--line);padding-top:18px;margin-top:22px}.production-details>summary{font-size:12px;color:#a28f78;cursor:pointer}.production-details .file-actions{margin-bottom:5px}