:root{--bg:#0f1115;--bg-elev:#171a21;--bg-elev-2:#1f232c;--border:#2a2f3a;--text:#e7e9ee;--text-dim:#9aa1ad;--accent:#6ea8fe;--accent-strong:#4d8bfd;--danger:#f26d6d;--ok:#5fd08a;--radius:10px}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit;color:inherit}.app-shell{min-height:100vh}.nav{z-index:20;background:var(--bg-elev);border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:20px;padding:12px 20px;display:flex;position:sticky;top:0}.nav .brand{letter-spacing:.3px;font-weight:700}.nav a{color:var(--text-dim);font-weight:500}.nav a.active,.nav a:hover{color:var(--text);text-decoration:none}.nav .spacer{flex:1}.container{max-width:1180px;margin:0 auto;padding:24px 20px 60px}.toolbar{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:20px;display:flex}input[type=text],input[type=search],input[type=url],input[type=password],input[type=number],select,textarea{background:var(--bg-elev-2);border:1px solid var(--border);border-radius:var(--radius);outline:none;padding:9px 12px}input:focus,select:focus,textarea:focus{border-color:var(--accent)}textarea{resize:vertical;width:100%;font-family:inherit}.btn{background:var(--bg-elev-2);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;padding:9px 14px;transition:background .15s,border-color .15s}.btn:hover{background:#262b36}.btn.primary{background:var(--accent-strong);border-color:var(--accent-strong);color:#fff}.btn.primary:hover{background:var(--accent)}.btn.danger{border-color:var(--danger);color:var(--danger)}.btn.small{padding:5px 10px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.book-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:20px;display:grid}.book-card{cursor:pointer;position:relative}.book-card .cover-wrap{aspect-ratio:2/3;border-radius:var(--radius);background:var(--bg-elev-2);border:1px solid var(--border);width:100%;transition:transform .15s,border-color .15s;position:relative;overflow:hidden}.book-card:hover .cover-wrap{border-color:var(--accent);transform:translateY(-3px)}.book-card .cover-wrap img{object-fit:cover;width:100%;height:100%;display:block}.cover-fallback{background:linear-gradient(160deg, var(--c1), var(--c2));flex-direction:column;justify-content:center;gap:8px;width:100%;height:100%;padding:14px;display:flex}.cover-fallback .t{color:#fff;-webkit-line-clamp:5;-webkit-box-orient:vertical;font-size:14px;font-weight:700;line-height:1.25;display:-webkit-box;overflow:hidden}.cover-fallback .a{color:#ffffffbf;-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:11px;display:-webkit-box;overflow:hidden}.fmt-badge{letter-spacing:.04em;text-transform:uppercase;color:#fff;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#000000a6;border-radius:5px;padding:2px 7px;font-size:10px;font-weight:700;position:absolute;top:8px;right:8px}.cached-dot{background:var(--ok);border-radius:50%;width:9px;height:9px;position:absolute;top:8px;left:8px;box-shadow:0 0 0 2px #00000080}.progress-strip{background:#0000008c;height:4px;position:absolute;bottom:0;left:0;right:0}.progress-strip>span{background:var(--accent);height:100%;display:block}.progress-strip.done>span{background:var(--ok)}.book-card .title{margin-top:8px;font-size:14px;font-weight:600;line-height:1.3}.book-card .author{color:var(--text-dim);font-size:12.5px}.layout{grid-template-columns:230px 1fr;align-items:start;gap:26px;display:grid}@media (max-width:820px){.layout{grid-template-columns:1fr;gap:16px}.layout>main{order:1}.layout>.facets{order:2}}.facets{max-height:calc(100vh - 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