:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--danger:#ef4444;--danger-bg:#ef44441a;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px;--danger:#f87171;--danger-bg:#f8717126}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code{font-family:var(--mono);color:var(--text-h);background:var(--code-bg);border-radius:4px;padding:4px 8px;font-size:15px;line-height:135%}.navbar{border-bottom:1px solid var(--border);gap:4px;padding:16px 32px;display:flex}@media (width<=1024px){.navbar{padding:12px 20px}}.nav-link{font-family:var(--sans);cursor:pointer;color:var(--text);background:0 0;border:none;border-radius:6px;padding:6px 14px;font-size:15px;font-weight:500;transition:background .2s,color .2s}.nav-link:hover,.nav-link.active{background:var(--accent-bg);color:var(--accent)}.book-item{border:1px solid var(--border);text-align:left;border-radius:8px;justify-content:space-between;align-items:flex-start;gap:16px;padding:20px;transition:box-shadow .3s;display:flex}.book-item:hover{box-shadow:var(--shadow)}@media (width<=1024px){.book-item{flex-direction:column}}.book-info{flex:1;min-width:0}.book-info h3{color:var(--text-h);margin:0 0 4px;font-size:20px;font-weight:500}.book-author{color:var(--accent);margin-bottom:8px;font-size:15px}.book-description{font-size:15px;line-height:150%}.book-actions{flex-shrink:0;gap:8px;display:flex}.book-list{flex-direction:column;gap:12px;display:flex}.empty-state{color:var(--text);padding:48px 20px;font-size:18px}.book-form{border:1px solid var(--border);text-align:left;border-radius:8px;padding:24px}.book-form h2{margin-top:0}.form-field{margin-bottom:16px}.form-field label{color:var(--text-h);margin-bottom:4px;font-size:14px;font-weight:500;display:block}.form-field input,.form-field select,.form-field textarea{width:100%;font-size:16px;font-family:var(--sans);color:var(--text-h);background:var(--bg);border:1px solid var(--border);box-sizing:border-box;border-radius:6px;padding:8px 12px}:is(.form-field input,.form-field select,.form-field textarea):focus{outline:2px solid var(--accent);outline-offset:1px}.form-field textarea{resize:vertical}.form-actions{gap:8px;margin-top:20px;display:flex}.app{flex:1;padding:32px}@media (width<=1024px){.app{padding:20px}}.app-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.app-header h1{margin:0}.btn{font-family:var(--sans);cursor:pointer;border:none;border-radius:6px;padding:8px 16px;font-size:15px;font-weight:500;transition:opacity .2s}.btn:hover{opacity:.85}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-primary{background:var(--accent);color:#fff}.btn-secondary{background:var(--accent-bg);color:var(--accent)}.btn-danger{background:var(--danger-bg);color:var(--danger)}.error-banner{background:var(--danger-bg);color:var(--danger);text-align:left;border-radius:8px;justify-content:space-between;align-items:center;margin-bottom:16px;padding:12px 16px;display:flex}.error-banner button{color:var(--danger);cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:20px}.status-text{text-align:center;padding:48px 20px;font-size:18px}main{margin-top:24px}