:root{color-scheme:light;--background:#f7f8fb;--foreground:#151922;--muted:#687082;--line:#d9dee8;--primary:#0f766e;--primary-dark:#115e59;--surface:#fff;--surface-strong:#eef6f5}*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--foreground);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}p a{color:var(--primary-dark);font-weight:700}button,input,select,textarea{font:inherit}.shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px;padding:0 32px;border-bottom:1px solid var(--line);background:hsla(0,0%,100%,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:-webkit-sticky;position:sticky;top:0;z-index:10}.brand{font-weight:700;font-size:18px}.nav{display:flex;gap:18px;color:var(--muted);font-size:14px}.main{flex:1 1;max-width:1120px;margin:0 auto;padding:48px 24px 72px;width:100%}.hero{display:grid;grid-template-columns:minmax(0,.9fr) minmax(360px,1.1fr);grid-gap:40px;gap:40px;align-items:start}.eyebrow{color:var(--primary-dark);font-weight:700;font-size:14px;margin:0 0 12px}h1{font-size:48px;line-height:1.08;margin:0 0 18px;letter-spacing:0}.lead{color:var(--muted);font-size:18px;line-height:1.7;margin:0}.converter{width:100%;min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:22px;box-shadow:0 14px 40px rgba(34,43,69,.08)}.dropzone{display:grid;place-items:center;min-height:190px;border:1px dashed #9aa6b8;border-radius:8px;background:#fbfcfe;color:inherit;text-align:center;padding:24px;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none}.dropzone,.dropzone>div{width:100%;max-width:100%}.dropzone>div{min-width:0}.dropzone strong{display:block;font-size:18px;margin-bottom:8px}.dropzone span{display:block;color:var(--muted);font-size:14px;overflow-wrap:anywhere}.dropzone .file-meta{margin-top:8px;color:var(--primary-dark);font-weight:700}.controls{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px;margin-top:18px}.field{display:grid;grid-gap:8px;gap:8px}.field label{font-size:13px;color:var(--muted)}.field select{height:42px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:0 12px}.field select:disabled{cursor:not-allowed;opacity:.65}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.button{border:0;border-radius:6px;min-height:42px;padding:0 16px;cursor:pointer;font-weight:700}.button:disabled{cursor:not-allowed;opacity:.55}.button.primary{background:var(--primary);color:#fff}.status{margin-top:16px;border:1px solid var(--line);border-radius:8px;background:#fbfcfe;padding:14px;color:var(--muted);font-size:14px;line-height:1.6}.status strong{color:var(--foreground)}.download-link{display:inline-flex;align-items:center;min-height:36px;margin-top:10px;padding:0 12px;border-radius:6px;font-weight:700}.button.secondary,.download-link{background:var(--surface-strong);color:var(--primary-dark)}.matrix{margin-top:44px}.matrix h2{font-size:22px;margin:0 0 18px}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:12px;gap:12px}.link-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px;color:var(--foreground)}.link-card span{display:block;color:var(--muted);font-size:13px;margin-top:6px}.footer{display:flex;justify-content:center;gap:20px;padding:24px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.footer a:hover,.link-card:hover,.nav a:hover{color:var(--primary-dark)}.legal-page{max-width:840px}.legal-page h1{font-size:40px}.legal-page section{margin-top:30px}.legal-page h2{font-size:22px;margin:0 0 10px}.legal-page p{color:var(--muted);font-size:16px;line-height:1.8;margin:0}@media (max-width:820px){.topbar{padding:0 18px}.nav{display:none}.footer{flex-direction:column;align-items:center;gap:10px}.main{padding:32px 18px 56px}.hero{grid-template-columns:1fr}h1{font-size:36px}.legal-page h1{font-size:34px}.controls,.grid{grid-template-columns:1fr}}