:root{--bg:#f5f5f2;--panel:#fff;--line:#dde1e4;--text:#1f2a33;--muted:#6b7780;--accent:#1f3a5f;--accent-soft:#e6eef7;--danger:#c62828;--lb:#8d6e63;--l0:#d32f2f;--l1:#37474f;--l2:#00897b;--l3:#ef6c00;color:var(--text);background:var(--bg);-webkit-tap-highlight-color:transparent;font-family:Hiragino Sans,Noto Sans JP,Yu Gothic UI,Meiryo,sans-serif}*{box-sizing:border-box}html,body,#root{overscroll-behavior:none;height:100%;margin:0}button,input,select,textarea,summary{font:inherit;color:inherit}button,.file-btn,summary{border:1px solid var(--line);background:var(--panel);cursor:pointer;touch-action:manipulation;border-radius:8px;min-height:36px;padding:6px 12px}button:disabled{opacity:.4;cursor:default}button.on{background:var(--accent-soft);border-color:var(--accent)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.danger{color:var(--danger);border-color:#f2c4c4}button.small{min-height:28px;margin-left:6px;padding:2px 8px;font-size:12px}input,select,textarea{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;min-height:36px;padding:4px 8px}textarea{resize:vertical}.muted{color:var(--muted);font-size:13px}.home{max-width:880px;margin:0 auto;padding:24px 16px 48px}.home-head h1{color:var(--accent);margin:0;font-size:26px}.home-head p{color:var(--muted);margin:4px 0 20px}.new-actions{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;display:grid}.new-card{border:1px solid var(--line);background:var(--panel);cursor:pointer;text-align:left;border-radius:12px;flex-direction:column;align-items:flex-start;gap:4px;min-height:120px;padding:16px;display:flex}.new-card input{display:none}.new-card span{color:var(--muted);font-size:13px}.new-card .new-icon{color:var(--accent);font-size:26px}.new-card.subtle{background:0 0}.busy{color:var(--accent)}.home h2{margin:28px 0 8px;font-size:16px}.sketch-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.sketch-list li{align-items:center;gap:8px;display:flex}.sketch-open{text-align:left;flex-direction:column;flex:1;align-items:flex-start;padding:10px 14px;display:flex}.sketch-open span{color:var(--muted);font-size:12px}.foot{margin-top:24px}.editor{flex-direction:column;height:100%;display:flex}.topbar{padding:6px 8px;padding-top:max(6px, env(safe-area-inset-top));background:var(--panel);border-bottom:1px solid var(--line);flex-shrink:0;align-items:center;gap:6px;display:flex;overflow-x:auto}.topbar>*{flex-shrink:0}.doc-name{width:180px;font-weight:600}.save-state{color:var(--muted);font-size:12px}.save-state.pending{color:var(--l3)}.spacer{flex:1}.scale{background:var(--accent-soft);border-radius:6px;padding:4px 8px;font-size:12px}.scale.unset{color:#b45309;background:#fff3e0}.menu{position:relative}.menu summary{align-items:center;list-style:none;display:inline-flex}.menu summary::-webkit-details-marker{display:none}.menu-items{z-index:20;background:var(--panel);border:1px solid var(--line);border-radius:10px;flex-direction:column;gap:4px;margin-top:6px;padding:8px;display:flex;position:fixed;right:12px;box-shadow:0 8px 24px #0000001f}.workspace{flex:1;min-height:0;display:flex}.palette{background:var(--panel);border-right:1px solid var(--line);flex-shrink:0;width:210px;padding:8px;overflow-y:auto}.palette h3{align-items:center;gap:6px;margin:14px 0 6px;font-size:13px;display:flex}.palette-group{flex-direction:column;gap:2px;display:flex}.tool-btn{text-align:left;border-color:#0000;align-items:center;gap:8px;min-height:38px;padding:3px 6px;font-size:13px;display:flex}.tool-btn.active{background:var(--accent-soft);border-color:var(--accent)}.tool-icon{flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:inline-flex}.tool-icon 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var(--line);white-space:nowrap;border-radius:12px;align-items:center;gap:6px;padding:6px 8px;font-size:13px;display:flex;position:absolute;transform:translate(-50%);box-shadow:0 6px 20px #0000001f}.tool-hint{color:#fff;pointer-events:none;text-align:center;background:#1f3a5fe6;border-radius:999px;max-width:calc(100% - 24px);padding:6px 12px;font-size:13px;position:absolute;top:10px;left:50%;transform:translate(-50%)}.side{background:var(--panel);border-left:1px solid var(--line);flex-shrink:0;width:290px;overflow-y:auto}.panel{border-bottom:1px solid var(--line);flex-direction:column;gap:8px;padding:10px 12px;display:flex}.panel h3{align-items:center;gap:6px;margin:0;font-size:14px;display:flex}.behavior{color:var(--muted);border:1px solid var(--line);border-radius:4px;margin-left:auto;padding:0 4px;font-size:11px}.layer-list{margin:0;padding:0;list-style:none}.layer-list li{border-radius:6px;align-items:center;gap:6px;padding:3px 4px;display:flex}.layer-list li.active{background:var(--accent-soft)}.layer-name{flex:1;font-size:13px}.icon-btn{width:36px;min-height:30px;padding:0}.icon-btn.off{color:var(--muted)}.row{grid-template-columns:84px 1fr;align-items:center;gap:8px;font-size:13px;display:grid}.row-label{color:var(--muted);font-size:12px}.field-with-unit{align-items:center;gap:4px;display:flex}.unit{color:var(--muted);white-space:nowrap;font-size:12px}.backlinks ul{margin:4px 0;padding:0;font-size:13px;list-style:none}.backlinks li{align-items:center;padding:2px 0;display:flex}.backlinks li.broken{color:var(--danger)}.link-btn{min-height:28px;color:var(--accent);text-align:left;background:0 0;border:none;padding:2px 0;text-decoration:underline}.stepper{align-items:center;gap:8px;display:flex}.photo-thumb{border:1px solid var(--line);border-radius:8px;width:100%}.file-btn{justify-content:center;align-items:center;display:inline-flex}.file-btn input{display:none}.summary{font-size:13px}.summary p{margin:4px 0}.warn{color:#b45309}@media (width<=700px){.palette{z-index:10;position:absolute;top:0;bottom:0;box-shadow:4px 0 16px #0000001a}.side{z-index:10;width:min(290px,85vw);position:absolute;top:0;bottom:0;right:0;box-shadow:-4px 0 16px #0000001a}.workspace{position:relative}.doc-name{width:120px}}.symbol-size{flex-direction:column;gap:4px;margin-top:6px;display:flex}.size-presets{grid-template-columns:40px 1fr 40px;gap:6px;display:grid}.layer-list li{flex-wrap:wrap}.sub-locks{gap:6px;width:100%;padding-left:26px;display:flex}.sub-lock{min-height:28px;padding:2px 8px;font-size:12px}.info-fields{flex-direction:column;gap:6px;margin-top:6px;display:flex}.grid-size{width:auto;min-height:36px}.parts{flex-direction:column;gap:4px;display:flex}.parts-row{grid-template-columns:1fr 88px auto 30px;align-items:center;gap:4px;display:grid}.parts-name,.parts-value{min-width:0}.parts-del{width:30px;min-height:30px;padding:0}.parts-foot{justify-content:space-between;align-items:center;display:flex}.parts-foot 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.muted{color:#b0bec5}.scan-body{flex:1;justify-content:center;align-items:center;min-height:0;display:flex;position:relative;overflow:hidden}.scan-corners{touch-action:none;position:relative}.scan-corners img,.scan-corners svg{-webkit-user-select:none;user-select:none;position:absolute;inset:0}.scan-result{background:#fff;max-width:calc(100% - 24px);max-height:calc(100% - 24px);box-shadow:0 8px 30px #0006}.scan-busy{background:#000000b3;border-radius:999px;padding:10px 16px;position:absolute}.scan-foot{padding:10px 16px;padding-bottom:max(10px, env(safe-area-inset-bottom));background:#1c262b;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:flex}.scan-foot button{color:var(--text)}.scan-foot button.primary{color:#fff}.seg{gap:4px;margin-left:8px;margin-right:auto;display:flex}.page-picker{width:min(760px,100%);max-height:calc(100vh - 32px)}.page-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;padding:2px;display:grid;overflow-y:auto}.page-thumb{flex-direction:column;align-items:center;gap:4px;padding:6px;display:flex}.page-thumb img{border:1px solid var(--line);background:#fff;max-width:100%;max-height:160px}.page-thumb:hover{border-color:var(--accent)}.ai-busy{z-index:50;color:#fff;background:#1f3a5ff2;border-radius:999px;padding:10px 18px;position:fixed;top:60px;left:50%;transform:translate(-50%);box-shadow:0 6px 20px #0003}.ai-drafts{background:#fff8e8;border:1px solid #f5c26b;border-radius:10px;margin-bottom:8px;padding:10px}.ai-drafts p{margin:0 0 8px}.ai-drafts-actions{gap:8px;display:flex}.icon-btn.eye{color:var(--accent);justify-content:center;align-items:center;display:inline-flex}.icon-btn.eye.off{color:#9aa5ad;background:#f1f3f4}.icon-btn-space{flex-shrink:0;width:36px}.layer-none{font-size:12px}.selection-bar{left:50%;bottom:max(16px, env(safe-area-inset-bottom));background:var(--panel);border:1px solid var(--line);border-radius:12px;align-items:center;gap:8px;max-width:calc(100% - 24px);padding:6px 8px 6px 14px;font-size:13px;display:flex;position:absolute;transform:translate(-50%);box-shadow:0 6px 20px #00000024}.selection-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.selection-bar button{flex-shrink:0}.selection-name small{color:var(--muted);font-size:11px;display:block}.tool-hint.subtle{background:#1f3a5f99;font-size:12px}.press-ring{transform-box:fill-box;transform-origin:50%;animation:.5s ease-out forwards press-ring}@keyframes press-ring{0%{opacity:1;transform:scale(.6)}to{opacity:0;transform:scale(1.4)}}.toolbar{padding:4px 6px;padding-top:max(4px, env(safe-area-inset-top));background:var(--panel);border-bottom:1px solid var(--line);flex-shrink:0;align-items:stretch;gap:2px;display:flex;overflow-x:auto}.tb-group{border-right:1px solid var(--line);flex-shrink:0;align-items:center;gap:2px;padding:0 6px;display:flex}.tb-group:last-child{border-right:none;margin-left:auto}.tb-btn{min-width:52px;min-height:48px;color:var(--text);cursor:pointer;white-space:nowrap;background:0 0;border:1px solid #0000;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:1px;padding:3px 6px;font-size:11px;line-height:1.2;display:inline-flex}.tb-btn:hover:not(:disabled){background:#f1f3f4}.tb-btn.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.tb-btn.primary,.tb-btn.primary:hover:not(:disabled){background:var(--accent);border-color:var(--accent);color:#fff}.tb-btn.danger:not(:disabled){color:var(--danger)}.tb-btn input{display:none}.tb-doc{flex-direction:column;justify-content:center;gap:1px;padding:0 4px;display:flex}.tb-doc .doc-name{min-height:30px;padding:2px 6px}.tb-doc .save-state{padding-left:6px;font-size:10px}.tb-scale{align-items:center;padding:0 4px;display:flex}.symbol-switch{width:100%}.symbol-switch.compact{width:auto;max-width:200px;min-height:36px}.login{justify-content:center;align-items:center;min-height:100vh;padding:16px;display:flex}.login-card{background:var(--panel);border:1px solid var(--line);text-align:center;border-radius:12px;flex-direction:column;gap:12px;width:100%;max-width:400px;padding:28px 24px;display:flex}.login-card h1{color:var(--accent);margin:0;font-size:24px}.login-card p{margin:0}.login-btn{border:1px solid var(--line);background:#fff;border-radius:8px;justify-content:center;align-items:center;gap:10px;padding:12px 16px;font-size:15px;font-weight:600;display:inline-flex}.login-error{color:var(--danger);font-size:13px}.home-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.account{color:var(--muted);overflow-wrap:anywhere;align-items:center;gap:8px;font-size:13px;display:flex}.notice{background:var(--accent-soft);border-radius:8px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:12px 0;padding:10px 12px;font-size:14px;display:flex}.notice.warn{color:#8a4b00;background:#fff4e5}.badge{color:#8a4b00;background:#fff4e5;border-radius:4px;margin-left:8px;padding:1px 6px;font-size:11px;font-style:normal}.badge.subtle{background:var(--accent-soft);color:var(--accent)}.save-state.error{color:var(--danger)}