:root{--bg:#0f1419;--panel:#1a2230;--ink:#e8edf3;--muted:#94a3b8;--accent:#3b82f6;--line:#2a3547}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink)}a{color:inherit;text-decoration:none}.app{min-height:100vh;display:flex;flex-direction:column}.nav{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;border-bottom:1px solid var(--line)}.brand{font-weight:700}.nav nav a{margin-left:18px;color:var(--muted)}.nav nav a.active{color:var(--ink)}.container{flex:1;max-width:1100px;margin:0 auto;padding:32px 24px;width:100%}.btn{background:var(--accent);color:#fff;border:none;padding:10px 16px;border-radius:8px;cursor:pointer;font-weight:600}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-lg{padding:14px 28px;font-size:18px}.hero{text-align:center;padding:48px 0}.hero h1{font-size:34px;max-width:760px;margin:0 auto 16px}.hero p{color:var(--muted);max-width:620px;margin:0 auto 22px}.fineprint{font-size:13px;color:var(--muted);margin-top:14px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}.card ul{padding-left:18px;color:var(--muted)}.narrow{max-width:560px;margin:0 auto}.form{display:flex;flex-direction:column;gap:10px;margin:16px 0}.form input,.form textarea,.form select{background:var(--bg);border:1px solid var(--line);color:var(--ink);padding:10px;border-radius:8px}.form textarea{min-height:90px}.link{background:none;border:none;color:var(--accent);cursor:pointer}.muted{color:var(--muted)}.dash{display:grid;grid-template-columns:260px 1fr;gap:24px}.dash aside h4{color:var(--muted);margin:14px 0 6px;font-size:12px;text-transform:uppercase}.cat{display:block;width:100%;text-align:left;background:none;border:none;color:var(--ink);padding:6px 8px;border-radius:6px;cursor:pointer}.cat.active{background:var(--panel);color:var(--accent)}.preview{background:#000;border:1px solid var(--line);padding:14px;border-radius:8px;white-space:pre-wrap;word-break:break-all;font-size:12px}.list{list-style:none;padding:0}.list li{background:var(--panel);border:1px solid var(--line);padding:10px;border-radius:8px;margin-bottom:8px}.foot{text-align:center;padding:18px;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}