:root{font-family:Segoe UI,Arial,sans-serif;color:#e9eef7;background:#08111f;--panel:#111f32;--line:#2b3d55;--muted:#a6b7cc;--accent:#ff852e}*{box-sizing:border-box}body{margin:0}header{padding:20px 28px;display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line)}header img{width:42px}header strong{font-size:24px}small{display:block;color:var(--muted);margin-top:4px}#identity{margin-left:auto;color:var(--muted)}header a.site-link{margin-left:auto;color:#ffb179;font-weight:650;text-decoration:none}#workspace{display:grid;grid-template-columns:210px 1fr}#workspace[hidden]{display:none}nav{padding:20px 12px;border-right:1px solid var(--line);min-height:calc(100vh - 90px)}nav button{display:block;width:100%;text-align:left;background:transparent;color:var(--muted);margin-bottom:8px}nav button.active{background:#402b21;color:#ffb179}main{padding:28px;min-width:0}h1{margin:0 0 10px;font-size:28px}h2{font-size:19px;margin:0 0 15px}h3{font-size:16px}p{color:var(--muted);line-height:1.6}.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:20px}.narrow{max-width:430px;margin:7vh auto}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}.grid .panel{margin:0}label{display:block;font-size:13px;color:var(--muted);margin:12px 0}input,select,textarea{display:block;width:100%;border:1px solid #456080;border-radius:7px;padding:10px;background:#0a1626;color:#eef3ff;margin-top:5px;font:inherit}textarea{min-height:130px}input[type=checkbox]{display:inline;width:auto;margin-right:7px}button,a.button{display:inline-block;border:0;border-radius:7px;background:#ff852e;color:#15100d;padding:10px 15px;cursor:pointer;font-weight:650;text-decoration:none;margin:3px}button:hover{filter:brightness(1.13)}button:disabled{opacity:.5;cursor:wait}button.secondary{background:#29415f;color:white}button.danger{background:#ad3446;color:white}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #82caff;outline-offset:2px}table{border-collapse:collapse;width:100%;font-size:13px}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:11px;word-break:break-word}th{color:var(--muted)}.scroll{overflow:auto}pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:420px;overflow:auto;background:#0a1626;padding:14px;border-radius:7px}.tag{display:inline-block;padding:3px 8px;border-radius:12px;background:#233d59}.good{color:#65dca9}.bad{color:#ff909b}.metrics{display:flex;gap:18px;margin:18px 0}.metric{background:var(--panel);padding:18px;flex:1;border:1px solid var(--line);border-radius:10px}.metric strong{font-size:28px;display:block}.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.toolbar select,.toolbar input{width:auto}#notice{position:sticky;top:0;z-index:10;background:#243a54;padding:0 28px;white-space:pre-wrap}#notice:not(:empty){padding:14px 28px}#notice.error{background:#612a37}a{color:#9acaff}.muted{color:var(--muted)}@media(max-width:850px){#workspace{grid-template-columns:1fr}nav{min-height:auto;border-right:0;display:flex;overflow:auto}nav button{width:auto;white-space:nowrap}header{padding:14px}header small{display:none}main{padding:15px}.metrics{flex-wrap:wrap}}
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.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.tool-card{display:flex;flex-direction:column;align-items:flex-start;gap:8px;background:#102033;border:1px solid #2b3d55;border-radius:12px;padding:16px;color:#e9eef7;text-decoration:none;min-height:88px}.tool-card strong{color:#ffb179}.tool-card small{color:#a6b7cc}.tool-card:hover{border-color:#ff852e}
.tool-icon{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;flex:none}.tool-icon svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}#content h1{display:flex;align-items:center}#content h1 .tool-icon{margin-right:12px}
.merge-list{list-style:none;padding:0;margin:12px 0}.merge-row{display:flex;align-items:center;gap:8px;padding:10px 12px;margin-bottom:8px;background:#0a1626;border:1px solid #2b3d55;border-radius:8px;cursor:grab}.merge-row span{flex:1}.merge-row.over{border-color:#ff852e}
.stage{position:relative;height:240px;margin:12px 0;background:#0a1626;border:1px dashed #456080;border-radius:8px;overflow:hidden;touch-action:none}.stage .mark{position:absolute;cursor:grab;white-space:nowrap;user-select:none}.edit-line{display:grid;grid-template-columns:72px 1fr;gap:8px;align-items:center;margin:8px 0}
.sheet{position:relative;width:100%;max-width:720px;margin:0 0 16px;background:#fff;user-select:none;touch-action:none;cursor:crosshair}.sheet img,.sheet .page-canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:fill}.sheet .word{position:absolute;pointer-events:none}.sheet .word.picked.highlight{background:rgba(255,225,74,.45)}.sheet .word.picked.underline{border-bottom:2px solid #1a56db}.sheet .word.picked.strike{background:linear-gradient(transparent 46%,#c0392b 46%,#c0392b 54%,transparent 54%)}.sheet .sheet-drag{position:absolute;border:1px solid #ff852e;background:rgba(255,133,46,.18);pointer-events:none}
.sign-pad{display:block;width:100%;max-width:560px;height:180px;background:#fff;border:1px solid #456080;border-radius:8px;touch-action:none;cursor:crosshair}.sheet .sign-mark{position:absolute;height:auto;pointer-events:none}
.extract-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}.extract-grid figure{margin:0}.extract-grid canvas{width:100%;height:auto;background:#fff;border-radius:8px}.extract-grid figcaption{color:var(--muted);font-size:12px;margin-top:6px;word-break:break-word}
.rotate-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.rotate-grid figure{margin:0}.rotate-grid canvas{width:100%;height:auto;background:#fff;border-radius:8px}.rotate-grid figcaption{color:var(--muted);font-size:12px;margin:6px 0}
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.thumb-row{display:flex;flex-wrap:wrap;gap:12px}.thumb-row img{width:220px;height:auto;background:#fff;border-radius:8px}.thumb-row figure{margin:0}.breakpoint-frame{max-width:100%;height:520px;margin-top:12px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}.breakpoint-frame iframe{width:100%;height:100%;border:0}.game-board{display:grid;grid-template-columns:repeat(4,72px);gap:8px;background:#bbada0;padding:8px;border-radius:8px;width:max-content}.game-cell{width:72px;height:72px;border-radius:4px;background:#cdc1b4;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:22px;color:#776e65}.game-cell.n2,.game-cell.n4{background:#eee4da}.game-cell.n8,.game-cell.n16{background:#f2b179;color:#f9f6f2}.game-cell.n32,.game-cell.n64{background:#f67c5f;color:#f9f6f2}.game-cell.n128,.game-cell.n256,.game-cell.n512,.game-cell.n1024,.game-cell.n2048{background:#edc22e;color:#f9f6f2;font-size:18px}.hacker-screen{min-height:220px;background:#071108;color:#7dff9a;font-family:Consolas,monospace}.mock-card{max-width:100%;height:auto;border-radius:12px}
[hidden]{display:none!important}
nav .nav-heading{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#869ebc;margin:20px 10px 12px}nav button{font-size:13px}textarea{min-height:170px}