:root{color-scheme:light;--bg: #f6f5f1;--card: #ffffff;--border: #e4e1d9;--text: #1d1c19;--muted: #7a7568;--accent: #1a1a1a;--accent-dark: #000000;--danger: #b34040}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.centered{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--muted)}.auth-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}.auth-card{width:100%;max-width:360px;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:32px;display:flex;flex-direction:column;gap:12px;box-shadow:0 8px 30px #0000000d}.auth-card h1{margin:0;font-size:26px;letter-spacing:-.5px}.auth-card .tagline{margin:-4px 0 8px;color:var(--muted);font-size:14px}.tabs{display:flex;gap:4px;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:4px}.tabs button{flex:1;border:none;background:transparent;border-radius:6px;padding:8px;cursor:pointer;font-weight:600;color:var(--muted);transition:all .15s ease}.tabs button:hover:not(.active){color:var(--text);background:#00000008}.tabs button.active{background:var(--card);color:var(--text);box-shadow:0 1px 3px #00000014}input,textarea{font:inherit;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--text);outline:none}input:focus,textarea:focus{border-color:var(--accent)}button{font:inherit;padding:10px 14px;border:none;background:transparent;color:var(--text);border-radius:0;cursor:pointer;font-weight:600;transition:all .15s ease}button:hover:not(:disabled){background:#00000008;color:var(--text);text-decoration:underline;text-underline-offset:2px;box-shadow:none;transform:none}button:active:not(:disabled){transform:none;box-shadow:none;transition-duration:.08s}button:disabled{opacity:.6;cursor:default}button.link{background:none;border:none;color:var(--accent);padding:4px;font-weight:500;transition:color .15s ease}button.link:hover{background:none;color:var(--accent-dark);text-decoration:underline;text-underline-offset:2px;box-shadow:none;transform:none}button.danger{background:none;border:none;color:var(--danger);font-weight:600;transition:all .15s ease}button.danger:hover:not(:disabled){background:#b340400d;color:var(--danger);text-decoration:underline;box-shadow:none;transform:none}.error{color:var(--danger);background:#fbeeee;border:1px solid #f0d0d0;border-radius:8px;padding:8px 12px;font-size:14px}.info{color:#2f6b3a;background:#edf7ee;border:1px solid #cfe6d2;border-radius:8px;padding:8px 12px;font-size:14px}.app{max-width:780px;margin:0 auto;padding:0 20px 60px}.topbar{display:flex;align-items:center;gap:16px;padding:18px 0;border-bottom:1px solid var(--border);margin-bottom:24px;flex-wrap:wrap}.topbar h1{margin:0;font-size:20px;letter-spacing:-.3px}.topbar nav{display:flex;gap:6px;flex:1}.topbar nav button{background:none;border:none;color:var(--muted);font-weight:600;transition:all .15s ease}.topbar nav button:hover:not(.active){color:var(--text);background:#00000008}.topbar nav button.active{color:var(--text);background:var(--card);border:1px solid var(--border)}.userbox{display:flex;align-items:center;gap:12px}.username{color:var(--muted);font-weight:600}.page{display:flex;flex-direction:column;gap:16px}.page-head h2,.page-head h3{margin:0}.page-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.page-head .link{margin-left:auto}.muted{color:var(--muted);font-size:14px;margin:0}.empty{background:var(--card);border:1px dashed var(--border);border-radius:12px;padding:32px;text-align:center;color:var(--muted)}.search-bar{display:flex;gap:8px;position:relative}.search-bar input{flex:1}.searching-indicator{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:14px;color:#666;pointer-events:none}.manual-section{margin-top:28px;padding-top:20px;border-top:1px solid var(--border)}.manual-section h3{margin:0 0 12px;font-size:17px}.add-section{display:flex;flex-direction:column;gap:12px}.manual-form{display:flex;flex-direction:column;gap:14px;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.manual-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:var(--muted)}.manual-form label input{font-weight:400;color:var(--text);width:100%}.row-fields{display:flex;gap:12px}.row-fields label{flex:1}.row-fields label.grow{flex:2}.badge{display:inline-block;margin-left:8px;padding:1px 7px;font-size:11px;font-weight:600;color:var(--muted);background:var(--bg);border:1px solid var(--border);border-radius:99px;vertical-align:middle}.badge.reading{color:var(--accent);border-color:var(--accent);background:transparent}.book-list,.result-list,.plain-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.book-row{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px}.drag-handle{background:none;border:none;padding:0;color:var(--muted);font-size:20px;line-height:1;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;flex-shrink:0;align-self:center}.drag-handle:hover,.drag-handle:hover:not(:disabled){background:none;color:var(--accent)}.drag-handle:active{cursor:grabbing}.rank{min-width:30px;font-weight:700;color:var(--muted);padding-top:4px}.cover{width:44px;height:64px;border-radius:4px;object-fit:cover;background:#eae7df;flex-shrink:0}.no-cover{display:flex;align-items:center;justify-content:center;font-size:22px}.info{flex:1;min-width:0}.title{font-weight:700}.author{color:var(--muted);font-size:14px;margin-top:2px}.review{width:100%;margin-top:10px;min-height:56px;resize:vertical;font-size:14px}.save-review{margin-top:6px;padding:6px 12px;font-size:13px}.review-text{margin-top:8px;font-size:14px;white-space:pre-wrap;background:var(--bg);border-left:3px solid var(--accent);padding:8px 10px;border-radius:0 6px 6px 0}.actions{display:flex;gap:6px;align-items:center;flex-shrink:0}.actions button{min-width:36px}.added{color:#2f6b3a;font-weight:600;font-size:14px}.error-text{color:var(--danger)}.row{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:10px 14px}button.friend-link{background:none;border:none;color:var(--text);font-weight:600;padding:0;transition:color .15s ease}button.friend-link:hover{background:none!important;color:var(--accent)!important;text-decoration:underline;box-shadow:none!important;transform:none!important;border:none!important}section{margin-top:8px}section h3{margin:0 0 10px;font-size:16px}.friend-books{border-top:1px solid var(--border);padding-top:16px}.segmented{display:inline-flex;gap:4px;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:4px}.segmented button{border:none;background:transparent;border-radius:6px;padding:7px 14px;cursor:pointer;font-weight:600;color:var(--muted);transition:all .15s ease}.segmented button:hover:not(.active){color:var(--text);background:#00000008}.segmented button.active{background:var(--card);color:var(--text);box-shadow:0 1px 3px #00000014}button.secondary{background:none;border:none;color:var(--text);font-weight:600;transition:all .15s ease}button.secondary:hover:not(:disabled){background:#00000008;color:var(--text);text-decoration:underline;box-shadow:none;transform:none}.share-row{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:12px 14px}.switch{position:relative;width:46px;height:26px;padding:0;border-radius:13px;background:transparent;border:1px solid var(--border);cursor:pointer;transition:all .15s ease;flex-shrink:0;display:flex;align-items:center}.switch.on{background:transparent;border-color:#c4c0b8}.switch .knob{width:18px;height:18px;border-radius:50%;background:var(--border);transition:all .15s ease;margin-left:3px}.switch.on .knob{margin-left:23px;background:#c4c0b8}.section-title{font-size:18px;margin:0 0 10px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.card-head h3{margin:0;font-size:16px}.share-row-inline{display:inline-flex;align-items:center;gap:10px}.switch.sm{width:38px;height:22px}.switch.sm .knob{width:16px;height:16px;margin-left:3px}.switch.sm.on .knob{margin-left:19px}.owned-row{display:flex;align-items:center;gap:10px;margin-top:8px}.public-col{display:flex;flex-direction:column;align-items:center;gap:4px}.small-label{font-size:11px;color:var(--muted)}.btn-sm{padding:5px 10px;font-size:13px}.actions-col{flex-direction:column;align-items:stretch}.actions-col .danger{align-self:flex-end}.muted-text{color:var(--muted)}.book-title-link{color:var(--text);text-decoration:none;transition:color .2s}.book-title-link:hover{color:var(--accent);text-decoration:underline}.book-detail-page{max-width:800px}.book-detail-header{display:flex;gap:24px;margin-bottom:32px;padding:24px;background:var(--card);border-radius:12px}.book-detail-cover{width:180px;height:auto;border-radius:8px;box-shadow:0 4px 12px #0000001a;flex-shrink:0}.book-detail-info{flex:1}.book-detail-info h1{margin:0 0 8px;font-size:28px;line-height:1.2}.book-detail-author{margin:0 0 4px;font-size:16px;color:var(--muted)}.book-detail-year{margin:0;font-size:14px;color:var(--muted)}.book-detail-section{margin-bottom:32px}.book-detail-section h2{font-size:20px;margin:0 0 16px;padding-bottom:8px;border-bottom:2px solid var(--border)}.book-detail-synopsis{line-height:1.7;color:var(--text);white-space:pre-wrap}.friend-activity-list{list-style:none;padding:0;margin:0}.friend-activity-item{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--card);border-radius:8px;margin-bottom:8px}.friend-username{font-weight:600;color:var(--text)}.friend-rank{font-weight:700;color:var(--accent);font-size:16px}.friend-status-badge{padding:4px 12px;border-radius:12px;font-size:13px;font-weight:600}.friend-status-badge.reading{background:var(--accent);color:#fff}.friend-status-badge.wishlist{background:var(--bg);color:var(--muted);border:1px solid var(--border)}.friend-status-badge.owned{background:#e8f5e9;color:#2e7d32}.review-carousel{display:flex;align-items:center;gap:16px}.review-nav-btn{background:var(--card);border:1px solid var(--border);border-radius:50%;width:40px;height:40px;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}.review-nav-btn:hover{background:var(--bg);border-color:var(--accent)}.review-card{flex:1;background:var(--card);border-radius:12px;padding:20px;border:1px solid var(--border)}.review-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.review-username{font-weight:600;color:var(--text)}.review-rank{background:var(--accent);color:#fff;padding:4px 12px;border-radius:12px;font-weight:700;font-size:14px}.review-text{line-height:1.6;color:var(--text);white-space:pre-wrap;margin:0}.review-counter{text-align:center;margin-top:12px;color:var(--muted);font-size:14px}@media(max-width:560px){.book-row{flex-wrap:wrap}.actions{width:100%;justify-content:flex-end}}