:root{--ink:#17212b;--muted:#6d7880;--paper:#f5f1e9;--card:#fffdf9;--panel:#fffdf9;--line:#ded9cf;--accent:#e45d3b;--teal:#116b67;--shadow:0 18px 50px rgba(27,35,39,.09)}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Yu Gothic UI","Hiragino Sans",system-ui,sans-serif}.topbar{height:72px;padding:0 max(24px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(245,241,233,.9);position:sticky;top:0;z-index:5;backdrop-filter:blur(10px)}.brand{display:flex;gap:12px;align-items:center;color:var(--ink);text-decoration:none;font-weight:800;letter-spacing:.02em}.brand-mark{display:grid;place-items:center;width:38px;height:38px;background:var(--ink);color:white;font-family:Georgia,serif;font-style:italic}.badge{display:flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);background:var(--card);font-size:12px}.badge span{width:8px;height:8px;border-radius:50%;background:#c7a436}.badge.ok span{background:#3c9b71}.badge.bad span{background:var(--accent)}main{max-width:1180px;margin:auto;padding:62px 24px 90px}.hero{max-width:740px;margin-bottom:46px}.eyebrow{margin:0 0 14px;color:var(--teal);font:700 11px/1.2 ui-monospace,monospace;letter-spacing:.18em}.hero h1{font:500 clamp(42px,6vw,72px)/1.08 Georgia,"Yu Mincho",serif;letter-spacing:-.04em;margin:0}.hero h1 em{color:var(--accent);font-weight:500}.lead{font-size:16px;color:var(--muted);line-height:1.8;max-width:630px}.workspace{position:relative}.stepper{display:flex;align-items:center;width:min(500px,100%);margin:0 0 20px}.step{display:flex;gap:8px;align-items:center;color:#999}.step b{font:700 11px ui-monospace,monospace}.step span{font-size:12px;font-weight:700}.step.active{color:var(--teal)}.stepper i{height:1px;flex:1;background:var(--line);margin:0 14px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.panel{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);padding:28px}.panel-heading{display:flex;gap:14px;align-items:center;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:24px}.panel-heading .number{font:700 11px ui-monospace,monospace;color:var(--accent);border:1px solid #e8c1b6;padding:7px}.panel-heading h2{font:600 20px Georgia,"Yu Mincho",serif;margin:0}.panel-heading p{font-size:11px;color:var(--muted);margin:4px 0 0}.dropzone{width:100%;min-height:300px;border:1px dashed #a7aaa4;background:#faf8f3;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--ink);cursor:pointer;transition:.2s}.dropzone:hover,.dropzone.drag{border-color:var(--accent);background:#fff7f2}.upload-icon{font-size:28px;color:var(--accent)}.dropzone strong{font-family:Georgia,"Yu Mincho",serif;font-size:18px}.dropzone small{color:var(--muted)}.formats{font:10px ui-monospace,monospace;color:#979b98;margin-top:20px}.source-summary{display:flex;align-items:center;gap:14px;padding:15px;border:1px solid var(--line)}.source-summary .thumb{width:52px;height:52px;background:var(--teal);color:white;display:grid;place-items:center;font:700 10px ui-monospace}.source-summary div:nth-child(2){display:flex;flex-direction:column;min-width:0;flex:1}.source-summary strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.source-summary small{color:var(--muted);margin-top:3px}.source-summary button{border:0;background:none;font-size:24px;color:#8b8f8e;cursor:pointer}.video-options{margin-top:14px;padding:14px;background:#edf4f1}.video-options label{font-size:12px;font-weight:700}.video-options input{width:72px;margin-left:10px;padding:7px;border:1px solid var(--line)}.video-options p{margin:8px 0 0;color:var(--muted);font-size:11px}.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}.field>span{font-size:12px;font-weight:700}.field small{font-weight:400;color:var(--muted)}input,select{font:inherit;color:var(--ink);background:white;border:1px solid var(--line);padding:11px 12px;outline:none}input:focus,select:focus{border-color:var(--teal)}.two-fields{display:grid;grid-template-columns:1.5fr 1fr;gap:12px}.palette{display:flex;flex-wrap:wrap;gap:8px;min-height:38px}.chip{display:flex;align-items:center;gap:7px;border:1px solid var(--line);padding:6px 8px;font:11px ui-monospace,monospace}.chip i{width:16px;height:16px;border:1px solid #ccc}.chip button{border:0;background:none;cursor:pointer;color:#777;padding:0}.color-add{display:grid;grid-template-columns:42px 1fr auto;gap:7px}.color-add input[type=color]{padding:3px;width:42px}.color-add button{border:1px solid var(--ink);background:var(--ink);color:white;padding:0 15px;cursor:pointer}.toggle{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:17px;cursor:pointer}.toggle input{display:none}.toggle>span{width:38px;height:21px;border-radius:20px;background:#c9c9c5;position:relative;transition:.2s}.toggle>span:after{content:"";position:absolute;width:15px;height:15px;border-radius:50%;background:white;top:3px;left:3px;transition:.2s}.toggle input:checked+span{background:var(--teal)}.toggle input:checked+span:after{left:20px}.toggle div{display:flex;flex-direction:column}.toggle strong{font-size:12px}.toggle small{font-size:10px;color:var(--muted)}.actionbar{margin-top:18px;background:var(--ink);color:white;padding:19px 22px;display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow)}.actionbar>div{display:flex;flex-direction:column}.actionbar span{font-weight:700}.actionbar small{color:#adb5b7;margin-top:4px}.primary{border:0;background:var(--accent);color:white;padding:15px 22px;font-weight:800;cursor:pointer;text-decoration:none;display:inline-flex;gap:22px;align-items:center}.primary:disabled{opacity:.4;cursor:not-allowed}.progress-panel{margin-top:18px}.progress-top{display:flex;justify-content:space-between;align-items:flex-start}.progress-top h2{margin:0;font:500 28px Georgia,"Yu Mincho",serif}.progress-top>b{font:500 42px Georgia,serif;color:var(--accent)}.progress-track{height:7px;background:#e7e3db;margin:25px 0}.progress-track i{display:block;width:0;height:100%;background:var(--teal);transition:.35s}.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line)}.stats div{display:flex;flex-direction:column;padding:14px;border-right:1px solid var(--line)}.stats div:last-child{border:0}.stats span{font-size:10px;color:var(--muted)}.stats b{font:600 13px ui-monospace,monospace;margin-top:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.download{margin-top:22px;width:max-content}.error-box{padding:13px;background:#fff0eb;color:#9e321c;font-size:12px;margin-top:16px;white-space:pre-wrap}.hidden{display:none!important}@media(max-width:760px){main{padding:38px 15px 70px}.grid{grid-template-columns:1fr}.hero h1{font-size:44px}.topbar{padding:0 15px}.brand span:last-child{display:none}.stats{grid-template-columns:1fr 1fr}.stats div:nth-child(2){border-right:0}.stats div:nth-child(-n+2){border-bottom:1px solid var(--line)}.actionbar{align-items:flex-end}.primary{padding:13px}.two-fields{grid-template-columns:1fr}}
.sequence-preview{margin-top:14px;border:1px solid var(--line);background:#f1eee7;padding:10px}.preview-stage{height:280px;background:#192126;display:flex;align-items:center;justify-content:center;overflow:hidden}.preview-stage img,.preview-stage video{display:block;max-width:100%;max-height:100%;width:100%;height:100%;object-fit:contain}.transport{display:grid;grid-template-columns:38px 44px 38px 1fr auto;gap:7px;align-items:center;margin-top:9px}.transport button{height:36px;border:1px solid var(--line);background:var(--card);cursor:pointer;color:var(--ink);font-weight:800}.transport button.play{background:var(--ink);color:white;border-color:var(--ink)}.transport input[type=range]{padding:0;border:0;accent-color:var(--accent);min-width:0}.transport b{font:700 10px ui-monospace,monospace;min-width:58px;text-align:right}.frame-name{font:10px ui-monospace,monospace;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:7px}.result-preview{clear:both;margin-top:24px;padding:16px}.result-heading h3{margin:0 0 14px;font:500 20px Georgia,"Yu Mincho",serif}.checker{background-color:#fff;background-image:linear-gradient(45deg,#e4e4e4 25%,transparent 25%),linear-gradient(-45deg,#e4e4e4 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e4e4e4 75%),linear-gradient(-45deg,transparent 75%,#e4e4e4 75%);background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0}.result-preview .preview-stage{height:420px}@media(max-width:760px){.preview-stage{height:220px}.result-preview .preview-stage{height:300px}}
.workspace-layout{display:grid;grid-template-columns:minmax(360px,2fr) minmax(560px,3fr);gap:20px;align-items:start}.setup-column .grid{grid-template-columns:1fr}.setup-column .panel{box-shadow:none}.setup-column .settings-panel{margin-top:18px}.output-column{margin-top:0;min-height:760px;position:sticky;top:90px}.output-column .result-preview{max-width:820px;margin:28px auto 0}.output-column .download{float:right}.transport{grid-template-columns:38px 44px 38px 1fr auto 72px}.transport select{height:36px;padding:4px;font-size:11px}.white-toggle{margin-top:16px}.toggle input:disabled+span{opacity:.35}.toggle input:disabled+span+div{opacity:.55}main{max-width:1480px}.result-preview .preview-stage img{object-position:center}@media(max-width:1050px){.workspace-layout{grid-template-columns:1fr}.output-column{position:static;min-height:500px}.setup-column .grid{grid-template-columns:1fr 1fr}}@media(max-width:760px){.setup-column .grid{grid-template-columns:1fr}.transport{grid-template-columns:34px 40px 34px 1fr}.transport b,.transport select{grid-row:2}.transport b{grid-column:1/4;text-align:left}.transport select{grid-column:4}}
.hero{max-width:none;margin:0 0 22px;display:flex;align-items:baseline;gap:18px}.hero .eyebrow{display:none}.hero h1{font:600 24px/1.2 Georgia,"Yu Mincho",serif;letter-spacing:-.02em;white-space:nowrap}.hero .lead{font-size:12px;line-height:1.4;margin:0}@media(max-width:760px){.hero{display:block}.hero h1{font-size:22px}.hero .lead{margin-top:7px}}
.result-preview .preview-stage{overflow:auto;display:block;text-align:center}.result-preview .preview-stage img{display:inline-block}.zoom-controls{display:grid;grid-template-columns:34px minmax(100px,220px) 34px 58px auto;gap:7px;align-items:center;margin-bottom:10px}.zoom-controls button{height:32px;border:1px solid var(--line);background:var(--card);cursor:pointer;font-weight:800}.zoom-controls input{padding:0;border:0;accent-color:var(--accent)}.zoom-controls b{font:700 11px ui-monospace,monospace;color:var(--muted)}
.palette-mode{display:grid;gap:7px;margin-top:4px}.palette-mode label{display:flex;align-items:flex-start;gap:8px;border:1px solid var(--line);padding:10px;background:white;cursor:pointer}.palette-mode input{margin:3px 0 0;accent-color:var(--teal)}.palette-mode span{display:flex;flex-direction:column;gap:2px}.palette-mode strong{font-size:11px}.palette-mode small{font-size:10px}.palette-mode label:has(input:checked){border-color:var(--teal);background:#edf4f1}#resultViewport{cursor:grab;user-select:none;touch-action:none}#resultViewport.panning{cursor:grabbing}#resultViewport img{pointer-events:none}
/* nakawari共通ヘッダー */
.site-header{height:64px;display:flex;align-items:center;gap:10px;padding:0 16px;border-bottom:1px solid var(--line);background:var(--panel);position:relative;z-index:20}.site-brand{display:flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none;font-weight:900}.site-brand img{width:31px;height:31px;border-radius:6px}.site-brand small{display:block;color:var(--muted);font:700 8px Consolas}.site-tabs{display:flex;gap:2px;padding:3px;border:1px solid var(--line);border-radius:8px;background:var(--paper)}.site-tabs a{min-height:32px;display:grid;place-items:center;padding:0 11px;border-radius:5px;color:var(--muted);font-size:11px;font-weight:800;text-decoration:none;white-space:nowrap}.site-tabs a.active{background:var(--panel);color:var(--ink);box-shadow:inset 0 -3px var(--accent)}.site-spacer{flex:1}.site-account{color:var(--muted);font:700 10px Consolas;white-space:nowrap}.site-icon{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--ink);font-weight:900;text-decoration:none}.site-lang{color:var(--muted);font-size:11px}.site-secondary{height:36px;padding:0 13px;border:1px solid var(--line);border-radius:6px;background:var(--paper);font-weight:800}.site-menu-wrap{position:relative}.site-menu{position:absolute;right:0;top:42px;width:190px;padding:6px;display:none;background:var(--panel);border:1px solid var(--line);box-shadow:0 14px 36px #0002}.site-menu.show{display:block}.site-menu a,.site-menu button{width:100%;min-height:36px;display:flex;align-items:center;padding:0 10px;border:0;background:transparent;color:var(--ink);font-size:11px;text-decoration:none}.login-gate{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:#202124cc}.login-gate>div{width:min(400px,92vw);padding:28px;background:var(--panel);border:1px solid var(--line);text-align:center}.login-gate img{width:48px}.login-gate button{min-height:42px;padding:0 18px;border:0;background:var(--ink);color:#fff;font-weight:900}.pack-list{display:grid;gap:8px;margin:16px 0}.pack-list button{width:100%}.login-gate .close-button{background:var(--paper);color:var(--ink);border:1px solid var(--line)}
@media(max-width:1100px){.site-tabs{max-width:55vw;overflow-x:auto}.badge{display:none}.site-account{display:none}}@media(max-width:720px){.site-header{height:auto;flex-wrap:wrap;padding:10px}.site-tabs{order:3;max-width:none;width:100%}}
.notice-dot{position:relative}.notice-dot:after{content:"";position:absolute;right:6px;top:6px;width:6px;height:6px;border-radius:50%;background:var(--accent)}