:root{
  --paper:#f3eee3; --paper2:#ebe4d4; --ink:#17150f; --ink2:#4a463b; --rule:#d9d0bb;
  --human:#1f6f5c; --human-bg:rgba(31,111,92,.16);
  --mixed:#b9830f; --mixed-bg:rgba(197,139,18,.20);
  --mach:#c8381a; --mach-bg:rgba(200,56,26,.20);
  --serif: "Iowan Old Style","Charter","Palatino Linotype","Book Antiqua",Georgia,serif;
  --sans: ui-sans-serif,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono: ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{background:var(--paper)}
body{margin:0;color:var(--ink);font-family:var(--sans);line-height:1.5;
  background:
    radial-gradient(1200px 500px at 85% -10%,rgba(200,56,26,.07),transparent 60%),
    var(--paper);
  min-height:100vh;display:flex;flex-direction:column}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px clamp(16px,4vw,48px);border-bottom:1px solid var(--rule);flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.mark{width:30px;height:30px;border-radius:50%;border:3px solid var(--ink);position:relative;display:inline-block}
.mark::after{content:"";position:absolute;left:50%;top:-5px;width:3px;height:30px;background:var(--mach);transform:translateX(-50%) rotate(45deg);transform-origin:center}
.word{font-family:var(--serif);font-size:22px;letter-spacing:.01em}
.word em{font-style:italic;color:var(--mach)}
.tabs{display:flex;gap:4px;flex-wrap:wrap}
.tab{font:500 14px var(--sans);background:none;border:0;padding:8px 12px;border-radius:999px;color:var(--ink2);cursor:pointer}
.tab:hover{background:var(--paper2)}
.tab.on{background:var(--ink);color:var(--paper)}
.tab i{font-style:normal;font-size:10px;text-transform:uppercase;letter-spacing:.08em;opacity:.6;margin-left:4px}
main{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:clamp(20px,4vw,48px) clamp(16px,4vw,48px) 64px}
.panel{display:none}.panel.on{display:block}
.eyebrow{font:600 12px var(--mono);text-transform:uppercase;letter-spacing:.14em;color:var(--mach);margin:0 0 14px}
h1{font:400 clamp(38px,7vw,76px)/1.02 var(--serif);letter-spacing:-.02em;margin:0 0 18px}
.lede{font-size:18px;max-width:34em;color:var(--ink2);margin:0 0 32px}
.paper{background:#fbf8f0;border:1px solid var(--rule);border-radius:14px;box-shadow:0 1px 0 #fff inset,0 18px 40px -22px rgba(23,21,15,.35);overflow:hidden}
textarea{display:block;width:100%;min-height:240px;max-height:60vh;resize:vertical;border:0;outline:0;background:
  repeating-linear-gradient(to bottom,transparent 0,transparent 29px,rgba(23,21,15,.07) 29px,rgba(23,21,15,.07) 30px),#fbf8f0;
  font:18px/30px var(--serif);color:var(--ink);padding:18px 22px 12px}
textarea::placeholder{color:#9a937f}
.bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 16px;border-top:1px solid var(--rule);background:var(--paper2)}
.count{font:13px var(--mono);color:var(--ink2)}
.acts{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.ghost,.go{font:600 13px var(--sans);border-radius:999px;padding:9px 14px;cursor:pointer;border:1px solid var(--ink);background:transparent;color:var(--ink)}
.ghost:hover{background:var(--ink);color:var(--paper)}
.file{position:relative;overflow:hidden}.file input{position:absolute;inset:0;opacity:0;cursor:pointer}
.go{background:var(--mach);border-color:var(--mach);color:#fff;padding:10px 20px;font-size:14px}
.go:hover{background:#a82d14}
.go:disabled{opacity:.5;cursor:default}

.result{margin-top:44px;animation:rise .5s ease both}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.strip-wrap{margin-bottom:28px}
.strip-head{display:flex;justify-content:space-between;font:12px var(--mono);color:var(--ink2);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px;gap:8px;flex-wrap:wrap}
.key b{display:inline-block;width:10px;height:10px;border-radius:2px;margin:0 4px 0 12px;vertical-align:-1px}
.k-h{background:var(--human)}.k-m{background:var(--mixed)}.k-a{background:var(--mach)}
.strip{display:flex;gap:2px;height:46px}
.strip i{display:block;min-width:3px;border-radius:2px;background:#cfc7b2;cursor:pointer;transform-origin:bottom;animation:grow .6s cubic-bezier(.2,.8,.2,1) both;transition:filter .15s,transform .15s}
.strip i.human{background:var(--human)}.strip i.mixed{background:var(--mixed)}.strip i.machine{background:var(--mach)}
.strip i.short{background:#cfc7b2}
.strip i:hover,.strip i.hl{filter:brightness(1.25);transform:scaleY(1.18)}
@keyframes grow{from{transform:scaleY(.05);opacity:0}to{transform:none;opacity:1}}

.grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
@media(max-width:900px){.grid{grid-template-columns:1fr}}
.verdict{display:flex;gap:22px;align-items:center;margin-bottom:26px;flex-wrap:wrap}
.stamp{width:132px;height:132px;border-radius:50%;border:4px double var(--c,var(--ink));color:var(--c,var(--ink));display:grid;place-content:center;text-align:center;transform:rotate(-8deg);flex:none;background:rgba(255,255,255,.35)}
.stamp span{font:400 40px/1 var(--serif)}
.stamp small{font:700 10px var(--mono);letter-spacing:.14em;text-transform:uppercase;margin-top:4px}
.verdict[data-v=human]{--c:var(--human)}.verdict[data-v=mixed]{--c:var(--mixed)}.verdict[data-v=machine]{--c:var(--mach)}
.vtext h2{font:400 clamp(26px,4vw,38px)/1.1 var(--serif);margin:0 0 6px}
.vtext p{margin:0;color:var(--ink2);max-width:34em}
.doc{font:19px/1.85 var(--serif);background:#fbf8f0;border:1px solid var(--rule);border-radius:14px;padding:26px clamp(18px,3vw,34px);white-space:pre-wrap;overflow-wrap:anywhere}
.s{border-radius:3px;padding:1px 0;cursor:pointer;transition:background .15s;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.s.human{background:linear-gradient(transparent 55%,var(--human-bg) 55%)}
.s.mixed{background:linear-gradient(transparent 40%,var(--mixed-bg) 40%)}
.s.machine{background:linear-gradient(transparent 20%,var(--mach-bg) 20%)}
.s:hover,.s.hl,.s.on{background:rgba(23,21,15,.12)}
.s.on{outline:2px solid var(--ink);outline-offset:2px}
.note{margin-top:14px;border-left:4px solid var(--c,var(--ink));background:#fbf8f0;padding:14px 18px;border-radius:0 12px 12px 0;font-size:15px}
.note[data-l=human]{--c:var(--human)}.note[data-l=mixed]{--c:var(--mixed)}.note[data-l=machine]{--c:var(--mach)}
.note b{font-family:var(--serif);font-size:17px}
.note ul{margin:6px 0 0;padding-left:18px;color:var(--ink2)}

.side{display:grid;gap:16px;position:sticky;top:16px}
@media(max-width:900px){.side{position:static}}
.card{background:#fbf8f0;border:1px solid var(--rule);border-radius:14px;padding:16px 18px}
.card h3{font:600 12px var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--ink2);margin:0 0 12px}
.card.plain{background:transparent;border-style:dashed}
.small{font-size:13px;color:var(--ink2);margin:10px 0 0}
.nums{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0}
.nums div{margin:0}.nums dt{font-size:12px;color:var(--ink2)}.nums dd{margin:0;font:400 28px/1.1 var(--serif)}
.rhythm{display:flex;align-items:flex-end;gap:2px;height:54px;margin-top:14px}
.rhythm i{flex:1;background:var(--ink);opacity:.8;border-radius:1px;min-height:2px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips span{font:13px var(--mono);background:var(--mach-bg);border:1px solid rgba(200,56,26,.35);border-radius:999px;padding:3px 10px}
.chips span b{font-weight:700;margin-left:6px;color:var(--mach)}
.soon{padding:60px 0;max-width:34em}.soon h2{font:400 44px var(--serif);margin:0 0 10px}.soon p{font-size:18px;color:var(--ink2)}
.foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:18px clamp(16px,4vw,48px);border-top:1px solid var(--rule);font:12px var(--mono);color:var(--ink2)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (prefers-color-scheme:dark){
  :root{--paper:#14120d;--paper2:#1d1a13;--ink:#f1ebdc;--ink2:#b3ab97;--rule:#322d21;--human:#4fb79b;--mach:#ff6a45;--mixed:#e0a82e}
  body{background:radial-gradient(1200px 500px at 85% -10%,rgba(255,106,69,.08),transparent 60%),var(--paper)}
  .paper,.doc,.card,.note{background:#1a170f}
  textarea{background:repeating-linear-gradient(to bottom,transparent 0,transparent 29px,rgba(241,235,220,.07) 29px,rgba(241,235,220,.07) 30px),#1a170f}
  .go{color:#14120d}.tab.on{color:#14120d}
}

.deepbar{margin:10px 0 0;font:13px var(--mono);color:var(--ink2);min-height:1.4em}
.deepbar.work::before{content:"";display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--mach);margin-right:8px;animation:pulse 1s infinite alternate}
.deepbar.ok{color:var(--human)}
@keyframes pulse{from{opacity:.25}to{opacity:1}}
.health{font:13px var(--mono)}.health.up{color:var(--human)}.health.down{color:var(--mixed)}