:root{--ink:#1f2b3d;--muted:#66758a;--line:#e2e7ef;--accent:#3963a5;--paper:#f4f6f9;--card:#fff;font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",sans-serif;color:var(--ink);background:var(--paper)}
@media (prefers-color-scheme:dark){:root{--ink:#e8edf5;--muted:#9aa7ba;--line:#2c3646;--accent:#7ea6ea;--paper:#141a23;--card:#1c2430}}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);min-height:100vh}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.library-header{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;padding:44px max(16px,calc((100vw - 1120px)/2)) 26px;background:var(--card);border-bottom:1px solid var(--line)}
.library-eyebrow{margin:0 0 8px;color:var(--accent);font-size:11px;letter-spacing:1.6px;font-weight:750}
h1{margin:0;font-size:clamp(24px,4vw,34px);letter-spacing:-.8px}
.library-description{margin:8px 0 0;color:var(--muted);font-size:14px;line-height:1.6;max-width:640px}
.library-description:empty{display:none}
.library-search input{width:min(320px,calc(100vw - 32px));height:42px;border:1px solid var(--line);border-radius:8px;padding:0 14px;font:inherit;font-size:14px;color:var(--ink);background:var(--paper)}
.library-search input:focus-visible,.library-book:focus-visible{outline:3px solid #79a7f0;outline-offset:2px}
main{padding:24px max(16px,calc((100vw - 1120px)/2)) 60px}
.library-count{margin:0 0 18px;color:var(--muted);font-size:13px}
.library-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:28px 22px}
.library-book{display:flex;flex-direction:column;gap:9px;color:inherit;text-decoration:none;border-radius:8px}
.library-cover{display:grid;place-items:center;width:100%;background:var(--card);border:1px solid var(--line);border-radius:6px;overflow:hidden;box-shadow:0 6px 18px #1b2a4114;transition:transform .18s ease,box-shadow .18s ease}
.library-cover img{width:100%;height:100%;object-fit:contain;display:block}
.library-book:hover .library-cover{transform:translateY(-3px);box-shadow:0 12px 26px #1b2a4124}
.library-locked{font-size:34px;opacity:.6}
.library-book strong{font-size:15px;line-height:1.4;word-break:keep-all;overflow-wrap:anywhere}
.library-meta{color:var(--muted);font-size:12px}
.library-empty{color:var(--muted);font-size:14px;list-style:none}
@media (max-width:520px){.library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 14px}.library-header{padding-top:30px}}
@media (prefers-reduced-motion:reduce){.library-cover{transition:none}.library-book:hover .library-cover{transform:none}}