/* Kurpishev author site restored shell + KLT interface */
:root{
  --bg:#f6f3ec; --paper:#fffdf8; --ink:#181512; --muted:#6f665c;
  --line:#ded5c8; --accent:#6b1f1f; --accent2:#0f4d59; --gold:#b28a3d;
  --ok:#176b3a; --warn:#8a5a00; --bad:#9f1d24; --shadow:0 18px 50px rgba(28,22,16,.12);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at top left,#fff7e6 0,#f6f3ec 35%,#efe8dd 100%);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.55}
a{color:inherit}.site{max-width:1180px;margin:0 auto;padding:28px 18px 64px}.top{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:28px}.brand{display:flex;align-items:center;gap:14px;text-decoration:none}.mark{width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,var(--accent),#2b0d0d);color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:var(--shadow)}.brand b{display:block;font-size:18px}.brand small{display:block;color:var(--muted);margin-top:2px}.nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.nav a{padding:10px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.55);text-decoration:none;color:#342b22;font-weight:650}.nav a.klt{background:var(--accent);color:#fff;border-color:var(--accent)}.hero{background:var(--paper);border:1px solid var(--line);border-radius:32px;padding:38px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero:after{content:"";position:absolute;right:-120px;top:-140px;width:330px;height:330px;border-radius:50%;background:rgba(178,138,61,.16)}.badge-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.badge{font-size:12px;letter-spacing:.04em;text-transform:uppercase;border:1px solid var(--line);border-radius:999px;padding:6px 10px;background:#fff;color:var(--muted);font-weight:800}.badge.red{color:var(--accent);border-color:#d9b7aa;background:#fff8f5}.badge.blue{color:var(--accent2);border-color:#b8d3d8;background:#f1fbfd}.badge.green{color:var(--ok);border-color:#b9d8c6;background:#f2fbf5}.hero h1{font-size:clamp(34px,5vw,62px);line-height:1.04;margin:0 0 18px;max-width:860px}.lead{font-size:19px;color:#342b22;max-width:850px;margin:0 0 24px}.actions{display:flex;gap:12px;flex-wrap:wrap}.btn,button.btn{appearance:none;border:0;border-radius:16px;padding:13px 18px;background:var(--accent);color:#fff;text-decoration:none;font-weight:800;cursor:pointer;display:inline-flex;align-items:center;gap:8px}.btn.secondary{background:var(--accent2)}.btn.ghost{background:#fff;color:var(--accent);border:1px solid #d5c6b6}.btn:disabled{opacity:.55;cursor:not-allowed}.section{margin-top:28px}.section h2{font-size:30px;margin:0 0 12px}.grid{display:grid;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 10px 28px rgba(28,22,16,.08)}.card h3{margin:0 0 8px;font-size:20px}.card p{margin:0;color:var(--muted)}.card .btn{margin-top:14px}.notice{border:1px solid var(--line);background:#fff;border-radius:18px;padding:14px;color:#3d332a}.notice.ok{border-color:#b9d8c6;background:#f2fbf5}.notice.warn{border-color:#ead19b;background:#fffaf0}.notice.bad{border-color:#e8b1b5;background:#fff3f3}.footer{margin-top:34px;color:var(--muted);font-size:14px;border-top:1px solid var(--line);padding-top:18px}.klt-shell{display:grid;grid-template-columns:330px 1fr;gap:18px;align-items:start}.side{position:sticky;top:16px}.field{display:block;margin:13px 0}.field span{display:block;font-weight:800;margin-bottom:6px}.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:14px;padding:11px 12px;background:#fff;font:inherit}.field textarea{min-height:120px;resize:vertical}.drop{border:2px dashed #c8b7a4;border-radius:20px;background:#fffaf2;padding:20px;text-align:center;cursor:pointer}.drop.drag{border-color:var(--accent);background:#fff2ed}.file-list{font-size:13px;color:var(--muted);margin-top:10px}.metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:14px 0}.metric{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px}.metric span{display:block;color:var(--muted);font-size:12px}.metric b{font-size:18px}.results{display:grid;gap:16px}.result{border:1px solid var(--line);border-radius:22px;background:#fff;padding:18px}.result-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:12px}.result h3{margin:0}.pill{border-radius:999px;padding:6px 10px;font-size:12px;font-weight:800;white-space:nowrap}.pill.ok{background:#f2fbf5;color:var(--ok);border:1px solid #b9d8c6}.pill.warn{background:#fffaf0;color:var(--warn);border:1px solid #ead19b}.pill.bad{background:#fff3f3;color:var(--bad);border:1px solid #e8b1b5}.criteria{width:100%;border-collapse:collapse;font-size:13px;margin:12px 0}.criteria th,.criteria td{border:1px solid #e7ded2;padding:8px;text-align:left;vertical-align:top}.criteria th{background:#faf4eb}.preview{background:#fbfaf7;border:1px solid var(--line);border-radius:12px;padding:12px;white-space:pre-wrap;max-height:260px;overflow:auto;font-size:13px}.progress{height:9px;background:#efe5d9;border-radius:999px;overflow:hidden;margin-top:10px}.progress div{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--gold));transition:width .25s}.modal{display:none;position:fixed;inset:0;background:rgba(24,21,18,.35);z-index:50;align-items:center;justify-content:center;padding:20px}.modal.show{display:flex}.modal-card{max-width:520px;background:#fff;border-radius:24px;border:1px solid var(--line);box-shadow:var(--shadow);padding:24px}.small{font-size:13px;color:var(--muted)}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#f3ece2;border:1px solid #ded0bd;border-radius:7px;padding:1px 6px}.empty{padding:28px;text-align:center;color:var(--muted);border:1px dashed #ccbba6;border-radius:20px;background:#fffaf2}.norm{font-size:13px;color:#554b41}.statusbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.lambda-formula{font-family:Georgia,serif;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;margin:10px 0;color:#1f1a15}.hidden{display:none!important}@media(max-width:900px){.klt-shell,.grid.two,.grid.three{grid-template-columns:1fr}.side{position:static}.hero{padding:26px}.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.top{align-items:flex-start;flex-direction:column}.nav{justify-content:flex-start}}