:root{color-scheme:dark;--bg:#121519;--panel:#1b2027;--line:#313943;--text:#edf1f6;--muted:#a1acb9;--accent:#a7efb8;--ink:#14241b;font-family:Inter,"Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif;font-size:16px}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer;border:1px solid transparent;color:inherit;background:none;border-radius:8px;min-height:40px;padding:8px 12px;font-size:.875rem;transition:background .15s}button:hover:not(:disabled){background:#303946}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button.primary,a.primary{background:var(--accent);color:var(--ink);border:1px solid var(--accent);font-weight:700;text-decoration:none}button.primary:hover:not(:disabled),a.primary:hover{background:#c4f6cf}button.secondary{background:#242b34;border-color:#43505d}button.secondary:hover:not(:disabled){background:#303d4a}header{height:80px;padding:0 max(28px,calc((100vw - 1440px)/2));display:flex;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.brand{font-size:2rem;font-weight:900;letter-spacing:-2px}.brand span{color:var(--accent)}.brand-label{font-size:.875rem;color:var(--muted)}.header-actions{margin-left:auto;display:flex;gap:12px}.header-actions .primary{padding:10px 20px}.header-actions .primary span{padding-left:20px}main{max-width:1440px;margin:auto;padding:26px 28px 0}.workspace-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.workspace-title h1{font-size:1.25rem;margin:0;font-weight:600}.workspace-title>span{font-size:.8125rem;color:var(--muted)}.editor{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px}.viewer{border:1px solid var(--line);background:#0d1014;border-radius:12px;overflow:hidden;min-width:0;display:flex;flex-direction:column}.viewer-bar{display:flex;justify-content:space-between;gap:10px;padding:16px 18px;font-size:.8125rem;border-bottom:1px solid #242b34}.subtle{color:var(--muted)}.stage{height:420px;min-height:300px;position:relative;display:flex;align-items:center;justify-content:center;background:#0b0e12;flex:1;overflow:hidden}.stage video{display:block;width:100%;height:100%;max-height:520px;object-fit:contain}.empty{text-align:center;padding:25px}.empty-icon{display:inline-flex;align-items:center;justify-content:center;font-size:2rem;width:60px;height:60px;color:var(--accent);border:1px dashed #64746e;border-radius:14px}.empty h2{font-size:1.25rem;margin:20px 0 10px}.empty p{color:var(--muted);line-height:1.8;font-size:.875rem;margin:0 0 20px}.empty small{display:block;color:var(--muted);font-size:.75rem;margin:16px 0 0}.drop-hint{position:absolute;inset:0;display:grid;place-items:center;background:#14271fed;border:2px dashed var(--accent);font-size:1.25rem}.player{height:64px;display:flex;align-items:center;gap:14px;padding:12px 16px;border-top:1px solid var(--line)}.player button{background:#2c3642;width:40px;flex:none}.player input{flex:1;min-width:20px;margin:0}.player .mono{font-size:.8125rem;white-space:nowrap}.mono{font-family:"Cascadia Code",Consolas,monospace;font-variant-numeric:tabular-nums}.edit-panel{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:22px}.panel-title{display:flex;align-items:center;gap:10px;min-width:0}.panel-title h2{font-size:1rem;font-weight:600;margin:0}.step-number{font-family:Consolas,monospace;font-size:.8125rem;color:var(--accent);border:1px solid #3c5148;border-radius:5px;padding:4px 6px}.selected-name{font-size:.8125rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-height:20px;margin:17px 0 24px}fieldset{margin:0;padding:0;border:0;min-width:0}.label-row{display:flex;align-items:center;justify-content:space-between;font-size:.875rem;margin-bottom:12px}.label-row small{font-size:.75rem;color:var(--muted)}.time-fields{display:grid;grid-template-columns:1fr 20px 1fr;align-items:center;gap:8px}.time-fields label{font-size:.75rem;color:var(--muted)}input[type=number],select{color:var(--text);background:#12171e;border:1px solid #414b57;border-radius:6px;min-height:42px;padding:8px 10px;width:100%}.time-fields input{margin-top:6px;font-family:Consolas,monospace;font-size:1rem}.time-fields>span{padding-top:22px;text-align:center;color:var(--muted)}.mark-buttons{display:flex;justify-content:space-between;gap:4px;margin:6px 0 10px}.mark-buttons button{font-size:.75rem;padding:5px 0;color:#b5c3d1;min-height:32px}.range-wrap{display:grid;gap:6px}.range-wrap label{display:flex;align-items:center;gap:10px;font-size:.75rem;color:var(--muted)}.range-wrap 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20px}.assembly-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.pill{font-size:.75rem;background:#303944;color:#d5dee8;border-radius:20px;padding:5px 10px;white-space:nowrap}.history{display:flex;gap:6px}.history button{font-size:.8125rem;color:#c0cbd7}.history button:last-child{border:1px solid var(--line)}.clips{display:flex;gap:12px;padding:18px 0 16px;overflow-x:auto;min-height:150px}.clips-empty{width:100%;min-height:120px;display:grid;place-items:center;border:1px dashed #424e5d;border-radius:8px;padding:24px;color:var(--muted);font-size:.875rem;text-align:center;line-height:1.8}.clip{flex:0 0 220px;border:1px solid #414d5b;border-radius:9px;background:#141a21;overflow:hidden}.clip.selected{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.clip-select{padding:0;border-radius:0;width:100%;text-align:left;display:flex;align-items:center;gap:10px;min-height:78px}.clip-select 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0;color:var(--muted);font-size:.75rem}footer button{font-size:.75rem;color:var(--muted)}dialog{background:#1b222b;color:var(--text);border:1px solid #465262;border-radius:16px;padding:28px;width:min(470px,calc(100% - 32px));max-height:85vh;overflow:auto;box-shadow:0 20px 90px #0009}dialog::backdrop{background:#04080dc4}dialog h2{font-size:1.125rem;margin:0 0 14px}dialog p,dialog li{font-size:.875rem;color:#bdc8d5;line-height:1.8}dialog li{margin:14px 0}dialog ol{padding-left:22px}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:8px}.dialog-header h2{margin:0}.dialog-header button{font-size:1.6rem}.export-details{display:flex;justify-content:space-between;background:#121820;padding:18px;border-radius:8px;margin:20px 0}.export-details 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22px}main{padding:24px 22px 0}.editor{grid-template-columns:minmax(0,1fr) 310px;gap:16px}.edit-panel{padding:18px}.stage{height:400px}.brand-label{display:none}.player{gap:8px;padding:10px}.history button{padding:5px 8px}}@media(max-width:760px){header{height:72px;padding:0 16px;gap:12px}.header-actions{gap:7px}.header-actions button{font-size:.8125rem;padding:8px 10px}.header-actions .primary{padding:8px 10px}.header-actions .primary span{padding-left:4px}main{padding:20px 16px 0}.workspace-title{align-items:flex-start;gap:10px}.workspace-title>span{max-width:145px;font-size:.75rem;text-align:right;line-height:1.5}.editor{grid-template-columns:1fr}.stage{height:300px;min-height:250px}.edit-panel{padding:20px}.assembly{padding:16px;margin-top:16px}.assembly-heading{align-items:flex-start;flex-direction:column}.history{align-self:flex-end}.assembly-footer{align-items:flex-start;flex-direction:column}.clip{flex-basis:215px}.clips{padding-top:12px}.edit-help{margin-top:12px}.range-wrap{grid-template-columns:1fr 1fr;gap:12px}.mark-buttons button{font-size:.8125rem}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}