:root{--background:#f5f7fb;--surface:#ffffff;--surface-muted:#eef2f8;--border:#d9e0eb;--text:#142033;--muted:#5d6b80;--accent:#3157d5;--accent-dark:#233fa3;--success:#16704c;--danger:#b33a46;--shadow:0 20px 60px rgba(21,38,70,0.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--background);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.site-shell{min-height:100vh}.topbar{border-bottom:1px solid var(--border);background:rgba(255,255,255,.88);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:-webkit-sticky;position:sticky;top:0;z-index:10}.topbar-inner{max-width:1180px;margin:0 auto;padding:15px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:800;letter-spacing:-.03em}.brand span{color:var(--accent)}.nav{display:flex;gap:18px;color:var(--muted);font-size:.92rem}.nav a:hover{color:var(--text)}.privacy-pill{color:var(--success);font-size:.82rem;white-space:nowrap}.main{max-width:1180px;margin:0 auto;padding:70px 24px 100px}.hero{max-width:780px;margin-bottom:38px}.eyebrow{color:var(--accent);font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}h1{font-size:clamp(2.6rem,6vw,5.4rem);line-height:.98;letter-spacing:-.07em;margin:14px 0 22px;max-width:760px}.home-headline{font-size:clamp(2rem,5.8vw,4.5rem);text-wrap:balance}.home-headline span{color:var(--accent)}h2{letter-spacing:-.04em;font-size:1.8rem;margin:0 0 12px}h3{margin:0 0 8px}.lede{color:var(--muted);font-size:1.12rem;line-height:1.65;max-width:680px}.workspace{background:var(--surface);border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}.workspace-head{padding:20px 22px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.workspace-title{font-weight:750}.status{color:var(--muted);font-size:.9rem}.editor-grid{display:grid;grid-template-columns:1fr 1fr}.editor-pane{min-width:0}.editor-pane+.editor-pane{border-left:1px solid var(--border)}.pane-label{padding:12px 18px;background:var(--surface-muted);color:var(--muted);font-size:.8rem;font-weight:750;text-transform:uppercase;letter-spacing:.08em}textarea.editor{width:100%;min-height:340px;resize:vertical;border:0;outline:0;padding:20px;color:var(--text);background:var(--surface);font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.92rem;line-height:1.6}.actions{padding:16px 18px;display:flex;gap:9px;flex-wrap:wrap;border-top:1px solid var(--border)}.button{border:1px solid var(--border);border-radius:9px;padding:9px 13px;background:var(--surface);color:var(--text);font-weight:650;font-size:.88rem}.button:hover{border-color:var(--accent);color:var(--accent)}.button.primary{color:white;background:var(--accent);border-color:var(--accent)}.button.primary:hover{background:var(--accent-dark)}.button.danger{color:var(--danger)}.detection{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;min-height:52px;padding:10px 18px;border-bottom:1px solid var(--border);background:var(--surface)}.detection-badge{display:inline-flex;align-items:center;flex-shrink:0;padding:4px 9px;border:1px solid #d7e0f8;border-radius:6px;background:#f2f5ff;color:#263b86;font-size:.75rem;font-weight:750;line-height:1.4}.detection-detail{color:var(--muted);font-size:.82rem;line-height:1.5;overflow-wrap:anywhere}.error{margin:14px 18px 0;color:var(--danger);background:#fff1f2;border:1px solid #f3c5ca;border-radius:10px;padding:12px 14px}.diff-output{margin:0;padding:18px 20px;min-height:220px;overflow:auto;background:#fbfcfe;color:var(--muted);font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.88rem;line-height:1.65;white-space:pre}.diff-line{display:block;min-width:max-content;padding:0 10px;border-radius:4px}.diff-line.added{color:#146c43;background:#e8f7ee}.diff-line.removed{color:#a52a36;background:#ffebed}.diff-line.unchanged{color:#647286}.section{margin-top:80px}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:14px;gap:14px}.tool-card{padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:14px;transition:transform .15s,border-color .15s}.tool-card:hover{transform:translateY(-2px);border-color:var(--accent)}.tool-card p{color:var(--muted);line-height:1.5;margin:8px 0 0;font-size:.92rem}.tool-card .arrow{color:var(--accent);margin-top:18px;display:block;font-weight:700}.tool-page h1{font-size:clamp(2.4rem,5vw,4.5rem)}.tool-page .workspace{margin-top:36px}.content-copy{max-width:760px;color:var(--muted);line-height:1.75}.footer{max-width:1180px;margin:0 auto;padding:24px;color:var(--muted);font-size:.88rem;display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--border)}.home-page{padding-top:24px}.home-page .hero{margin-bottom:20px}.home-page .home-headline{margin:10px 0 12px}.home-page .lede{margin:0;font-size:1rem;line-height:1.5;max-width:780px}.home-page .workspace-head{padding:12px 18px}.home-page .workspace-loading{min-height:393px}.home-page .detection{min-height:42px;padding:6px 18px}.home-page .pane-label{padding:8px 18px}.home-page textarea.editor{display:block;min-height:220px;padding:14px 18px}.home-page .actions{padding:10px 18px}.home-page .section{margin-top:28px}.home-page .section h2{margin:4px 0 8px}.home-page .section>.content-copy{margin:0 0 16px;line-height:1.5}@media (max-width:760px){.topbar-inner{padding:14px 16px}.nav{display:none}.main{padding:48px 16px 70px}.home-page{padding-top:20px}.home-page textarea.editor{min-height:160px}.home-page .workspace-loading{min-height:523px}.editor-grid{grid-template-columns:1fr}.editor-pane+.editor-pane{border-left:0;border-top:1px solid var(--border)}textarea.editor{min-height:250px}.tool-grid{grid-template-columns:1fr}.footer{padding:20px 16px;flex-direction:column}}