:root{--bg:#07110d;--panel:#0b1812;--line:#21382c;--green:#36f087;--text:#e7f5eb;--muted:#82988a;--red:#ff6b70;--amber:#ffc35c}*{box-sizing:border-box}html{font-size:16px}body{margin:0;background:radial-gradient(circle at 82% 0,#113525 0,transparent 27rem),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,sans-serif;min-height:100vh}.topbar{height:64px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,4vw,64px);background:#07110deb;position:sticky;top:0;z-index:3}.brand{color:var(--text);text-decoration:none;display:flex;align-items:center;gap:12px;font-size:1.05rem}.brand strong,.prompt{color:var(--green)}.brand em{font-style:normal;font-size:.64rem;letter-spacing:.13em;color:#07110d;background:var(--green);padding:3px 5px;margin-left:5px;border-radius:2px}.prompt{font-family:monospace;font-size:1.35rem}.privacy{font:12px ui-monospace,monospace;color:var(--muted)}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 9px var(--green);margin-right:7px}main{width:min(1440px,94vw);margin:auto;padding:58px 0 80px}.intro{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:38px}.eyebrow{font:12px ui-monospace,monospace;color:var(--green);letter-spacing:.18em;margin:0 0 10px}.intro h1{font-size:clamp(2.6rem,5vw,5.3rem);line-height:.91;letter-spacing:-.06em;margin:0;font-weight:760}.intro h1 span{-webkit-text-stroke:1px var(--green);color:transparent}.intro-copy{max-width:440px;color:#aac0b1;line-height:1.6;margin:0 0 5px}.controls{display:flex;align-items:center;gap:24px;padding:15px 18px;background:var(--panel);border:1px solid var(--line);border-bottom:0;border-radius:8px 8px 0 0;font-size:.82rem;color:#b7cbbd}.controls label{display:flex;align-items:center;gap:8px;cursor:pointer}.controls input{accent-color:var(--green);width:15px;height:15px}.text-button,.file-button{color:#9dffbd;background:none;border:0;font:inherit;cursor:pointer}.text-button{margin-left:auto}.text-button.muted{margin-left:-12px;color:var(--muted)}.workspace{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);background:var(--line);gap:1px}.editor-card{background:var(--panel);min-width:0}.editor-header,.editor-footer{display:flex;align-items:center;justify-content:space-between;padding:13px 18px}.editor-header{border-bottom:1px solid var(--line);font-size:.85rem}.editor-header>div{display:flex;align-items:center;gap:10px}.version-tag{display:grid;place-items:center;width:25px;height:25px;border-radius:3px;font:700 12px ui-monospace,monospace}.version-tag.old{background:#412025;color:#ff9b9e}.version-tag.new{background:#123b27;color:#9dffbd}.file-button{font-size:.75rem;border:1px solid #345440;padding:7px 10px;border-radius:4px}.file-button input{display:none}textarea{display:block;width:100%;height:390px;resize:vertical;border:0;outline:0;padding:20px;background:#08140e;color:#c7fbd5;font:14px/1.62 Consolas,monospace;tab-size:4;white-space:pre}textarea:focus{box-shadow:inset 0 0 0 1px #2a7e4e}textarea::placeholder{color:#4f6858}.editor-footer{border-top:1px solid var(--line);font:11px ui-monospace,monospace;color:#718778}.compare-button{display:flex;align-items:center;gap:10px;margin:24px auto 60px;padding:14px 20px;background:var(--green);color:#04110a;border:0;border-radius:4px;font-weight:800;cursor:pointer;box-shadow:0 8px 28px #1bed7850}.compare-button:hover{background:#6cff9f;transform:translateY(-1px)}.compare-button small{font:10px ui-monospace,monospace;padding-left:10px;border-left:1px solid #0c7c3d}.results{scroll-margin-top:85px}.hidden{display:none}.result-title{display:flex;justify-content:space-between;align-items:end;margin-bottom:18px}.result-title h2{margin:0;font-size:1.55rem}.legend{display:flex;gap:18px;font-size:.75rem;color:var(--muted)}.legend i{width:9px;height:9px;display:inline-block;margin-right:5px;border-radius:2px}.added{background:var(--green)}.removed{background:var(--red)}.changed{background:var(--amber)}.summary{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;border:1px solid var(--line);background:var(--line);margin-bottom:14px}.metric{background:var(--panel);padding:18px}.metric strong{display:block;font:700 1.8rem ui-monospace,monospace}.metric span{font-size:.75rem;color:var(--muted)}.diff-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}.diff-grid>div{min-width:0;background:#08140e}.diff-label{padding:10px 16px;border-bottom:1px solid var(--line);font:11px ui-monospace,monospace;color:var(--muted)}pre{margin:0;overflow:auto;padding:12px 0;font:13px/1.7 Consolas,monospace;counter-reset:line}.diff-line{display:block;min-height:22px;padding:0 14px 0 8px;white-space:pre}.diff-line::before{counter-increment:line;content:counter(line);display:inline-block;width:38px;margin-right:12px;color:#4e6656;text-align:right;user-select:none}.diff-line.add{background:#123b2766;border-left:3px solid var(--green)}.diff-line.remove{background:#471f2566;border-left:3px solid var(--red)}.diff-line.change{background:#49391555;border-left:3px solid var(--amber)}.diff-line.empty{color:transparent}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:24px clamp(20px,4vw,64px);color:#617668;font-size:.75rem}footer span:first-child{color:var(--green)}@media(max-width:800px){.privacy{display:none}main{padding-top:35px}.intro{display:block}.intro-copy{margin-top:24px}.controls{overflow:auto;white-space:nowrap}.workspace,.diff-grid{grid-template-columns:1fr}.summary{grid-template-columns:1fr 1fr}textarea{height:300px}.result-title{display:block}.legend{margin-top:15px}footer{gap:16px;flex-direction:column}}