:root{--bg: #fff8ef;--surface: #ffffff;--text: #2d2a26;--text-muted: #6b6459;--primary: #ff6f59;--primary-dark: #e6503b;--accent: #3ab6a8;--star: #ffb703;--border: #f0e4d3;--radius: 16px;--shadow: 0 2px 10px rgba(0, 0, 0, .06)}@media(prefers-color-scheme:dark){:root{--bg: #211e1a;--surface: #2b2722;--text: #f5efe6;--text-muted: #b8ae9f;--border: #3a352e;--shadow: 0 2px 10px rgba(0, 0, 0, .3)}}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.page{max-width:960px;margin:0 auto;padding:24px 16px 64px}.page-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:24px}.page-header h1{font-size:1.8rem;margin:0}.button{display:inline-block;padding:10px 18px;border-radius:999px;border:none;background:var(--surface);color:var(--text);box-shadow:var(--shadow);font-size:1rem;cursor:pointer}.button.primary{background:var(--primary);color:#fff;font-weight:600}.button.primary:hover{background:var(--primary-dark)}.button.danger{background:transparent;color:#d1453b;box-shadow:none}.empty-state{color:var(--text-muted);font-size:1.1rem;text-align:center;padding:48px 0}.error{color:#d1453b;background:#fdeceb;padding:10px 14px;border-radius:10px}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}.book-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s ease}.book-card:hover{transform:translateY(-3px)}.book-cover{aspect-ratio:2 / 3;background:var(--border);display:flex;align-items:center;justify-content:center}.book-cover img{width:100%;height:100%;object-fit:cover}.book-cover-placeholder{font-size:3rem}.book-info{padding:12px 14px 16px}.book-info h3{margin:0 0 4px;font-size:1.05rem}.book-author{color:var(--text-muted);margin:0 0 8px;font-size:.9rem}.book-date{color:var(--text-muted);font-size:.85rem;margin:6px 0 0}.book-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.tag{background:var(--accent);color:#fff;border-radius:999px;padding:2px 10px;font-size:.75rem}.star-rating{display:flex;gap:2px}.star{background:none;border:none;font-size:1.3rem;color:var(--border);cursor:default;padding:0}.star.filled{color:var(--star)}.star-rating button:not(:disabled){cursor:pointer}.cover-preview{display:flex;align-items:center;gap:16px;margin-bottom:20px}.cover-preview img{width:100px;border-radius:8px;box-shadow:var(--shadow)}.book-form{display:flex;flex-direction:column;gap:16px;max-width:480px}.book-form label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.95rem}.book-form input,.book-form textarea{font-family:inherit;font-size:1rem;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--text)}.form-actions{display:flex;gap:12px;margin-top:8px}