*,:before,:after{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body,#root{height:100dvh}body{color:#1a1a2e;-webkit-font-smoothing:antialiased;overscroll-behavior:none;background:#eef1f5;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}#root{flex-direction:column;display:flex}.app{background:#eef1f5;flex-direction:column;min-height:100dvh;display:flex}.app-main{padding:48px 16px 40px;padding-top:calc(48px + env(safe-area-inset-top));padding-bottom:calc(40px + env(safe-area-inset-bottom));flex-direction:column;flex:1;align-items:center;gap:24px;width:100%;display:flex}.brand{text-align:center;flex-direction:column;align-items:center;gap:14px;display:flex}.brand-logo{mix-blend-mode:multiply;height:110px}.brand-tagline{color:#5a7a90;letter-spacing:.1px;font-family:Playfair Display,Georgia,serif;font-size:1.05rem;font-style:italic;line-height:1.5}.input-form{background:#fff;border-radius:20px;flex-direction:column;gap:20px;width:100%;max-width:560px;padding:28px 24px 20px;display:flex;box-shadow:0 2px 20px #10466c12}.field-group{flex-direction:column;gap:8px;display:flex}.field-group label{text-transform:uppercase;letter-spacing:.8px;color:#9aacba;font-size:.7rem;font-weight:700}.input-wrapper{align-items:center;display:flex;position:relative}.input-icon{color:#b0c4d4;pointer-events:none;flex-shrink:0;width:16px;height:16px;position:absolute;left:14px}.url-input{color:#1a2e3e;appearance:none;background:#f7fafc;border:1.5px solid #e4edf4;border-radius:12px;width:100%;padding:13px 14px 13px 40px;font-family:Inter,sans-serif;font-size:.9rem;transition:border-color .15s,background .15s}.url-input::placeholder{color:#b0c4d4}.url-input:focus{background:#fff;border-color:#10466c;outline:none}.url-input.invalid{border-color:#e74c3c}.url-input.has-clear{padding-right:40px}.field-error{color:#e74c3c;font-size:.78rem}.input-clear{cursor:pointer;color:#b0c4d4;background:0 0;border:none;justify-content:center;align-items:center;padding:4px;transition:color .15s;display:flex;position:absolute;right:10px}.input-clear:hover{color:#4a6a80}.input-clear svg{width:16px;height:16px}.tag-loading{color:#9aacba;align-items:center;gap:8px;font-size:.82rem;display:flex}.tag-loading-spinner{border:2px solid #d0e0ec;border-top-color:#10466c;border-radius:50%;flex-shrink:0;width:14px;height:14px;animation:.75s linear infinite spin}.subject-picker{flex-direction:column;gap:10px;display:flex}.subject-picker-label{color:#4a6a80;font-size:.84rem;line-height:1.4}.subject-picker-label strong{color:#1a2e3e}.subject-picker-hint{color:#9aacba;font-size:.75rem}.subject-tags{flex-wrap:wrap;gap:8px;display:flex}.subject-tag{cursor:pointer;color:#4a6a80;background:#fff;border:1.5px solid #d0e0ec;border-radius:20px;padding:6px 14px;font-family:Inter,sans-serif;font-size:.8rem;font-weight:500;transition:all .15s}.subject-tag:hover{color:#10466c;border-color:#10466c}.subject-tag.selected{color:#fff;background:#10466c;border-color:#10466c}.subject-picker-count{color:#10466c;font-size:.75rem;font-weight:600}.form-divider{border:none;border-top:1px solid #eef1f5;margin:0}.style-toggle{cursor:pointer;text-transform:uppercase;letter-spacing:.8px;color:#9aacba;background:0 0;border:none;align-items:center;gap:6px;padding:0;font-family:Inter,sans-serif;font-size:.7rem;font-weight:700;transition:color .15s;display:flex}.style-toggle:hover{color:#4a6a80}.style-toggle svg:first-child{flex-shrink:0;width:14px;height:14px}.toggle-chevron{flex-shrink:0;width:14px;height:14px;margin-left:auto;transition:transform .2s}.toggle-chevron.open{transform:rotate(180deg)}.style-panel{padding-top:4px}.slider-group{flex-direction:column;gap:8px;display:flex}.slider-header{justify-content:space-between;align-items:center;display:flex}.slider-label{color:#1a2e3e;font-size:.95rem;font-weight:700}.slider-pill{color:#4a6a80;background:#eef1f5;border-radius:20px;padding:4px 12px;font-size:.72rem;font-weight:600}.slider{accent-color:#10466c;cursor:pointer;width:100%;height:4px}.slider-steps{justify-content:space-between;padding:0 2px;display:flex}.slider-steps span{color:#c0d0db;font-size:.68rem;font-weight:500}.slider-steps .step-active{color:#10466c;font-weight:700}.submit-btn{color:#fff;cursor:pointer;letter-spacing:.3px;background:#c89a2a;border:none;border-radius:14px;justify-content:center;align-items:center;gap:8px;width:100%;padding:16px;font-family:Inter,sans-serif;font-size:1rem;font-weight:700;transition:background .15s,transform .1s;display:flex}.submit-btn:active:not(:disabled){background:#a87e1e;transform:scale(.98)}.submit-btn:disabled{cursor:not-allowed;background:#e8d49a}.submit-chevron{margin-top:-1px;font-size:1.3rem;line-height:1}.example-link{text-align:center;margin:0}.example-link a{color:#7a9db5;text-underline-offset:3px;cursor:pointer;font-size:.82rem;text-decoration:underline}.loading-card{background:#fff;border-radius:16px;flex-direction:column;align-items:center;gap:14px;width:100%;max-width:560px;padding:28px 20px;display:flex;box-shadow:0 1px 3px #00000014}.spinner{border:3px solid #d0e0ec;border-top-color:#10466c;border-radius:50%;width:36px;height:36px;animation:.75s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-card p{color:#888;text-align:center;font-size:.88rem}.error-box{color:#c0392b;background:#fff5f5;border:1.5px solid #fcc;border-radius:12px;width:100%;max-width:560px;padding:14px 16px;font-size:.88rem;line-height:1.5}.query-chip{background:#10466c;border-radius:16px;justify-content:space-between;align-items:center;gap:12px;width:100%;max-width:560px;padding:16px 18px;display:flex}.query-chip-left{flex:1;align-items:center;gap:12px;min-width:0;display:flex}.query-chip-cover{object-fit:cover;border-radius:6px;flex-shrink:0;width:42px;height:58px;box-shadow:0 2px 8px #0000004d}.query-chip-placeholder{background:#ffffff26;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:58px;font-size:1.2rem;display:flex}.query-chip-text{min-width:0}.query-chip-label{color:#ffffff8c;text-transform:uppercase;letter-spacing:.6px;font-size:.65rem;font-weight:600}.query-chip-title{color:#fff;white-space:nowrap;text-overflow:ellipsis;margin-top:2px;font-family:Playfair Display,Georgia,serif;font-size:1rem;font-weight:600;overflow:hidden}.query-chip-author{color:#fff9;margin-top:2px;font-size:.78rem}.query-chip-badge{color:#fff;white-space:nowrap;background:#ffffff26;border-radius:20px;flex-shrink:0;padding:6px 14px;font-size:.75rem;font-weight:600}.results-header{text-transform:uppercase;letter-spacing:.6px;color:#888;align-self:flex-start;padding:0 4px;font-size:.72rem;font-weight:600}.results-list{flex-direction:column;gap:12px;width:100%;max-width:560px;display:flex}.book-card{background:#fff;border-radius:16px;flex-direction:column;display:flex;overflow:hidden;box-shadow:0 1px 4px #10466c12,0 4px 16px #10466c0d}.book-card-top{align-items:flex-start;gap:14px;padding:16px 18px 14px;display:flex}.book-left{flex-direction:column;flex-shrink:0;align-items:center;gap:8px;display:flex}.book-rank-circle{color:#4a6a80;background:#eef1f5;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:.78rem;font-weight:700;display:flex}.book-cover{flex-shrink:0}.book-cover img{object-fit:cover;border-radius:7px;width:64px;height:90px;display:block;box-shadow:0 3px 10px #00000026}.cover-placeholder{color:#ffffffe6;background:linear-gradient(135deg,#10466c 0%,#2a6d9e 100%);border-radius:7px;justify-content:center;align-items:center;width:64px;height:90px;font-family:Playfair Display,serif;font-size:1.6rem;display:flex}.book-info{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.book-title-row{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.book-title{color:#1a2e3e;flex:1;min-width:0;font-family:Playfair Display,Georgia,serif;font-size:1rem;font-weight:600;line-height:1.25}.book-title a{color:inherit;text-decoration:none}.book-title a:active{opacity:.7}.book-score-pct{color:#1a2e3e;white-space:nowrap;flex-shrink:0;font-size:1rem;font-weight:700}.book-author,.book-year{color:#8aa0b0;font-size:.82rem}.score-bar-row{background:#eef1f5;height:3px;margin:0 18px}.score-bar-fill{background:#10466c;border-radius:2px;height:100%}.book-why{background:#f5f8fb;border-radius:10px;margin:14px 18px;padding:14px 16px}.why-label{color:#1a2e3e;text-transform:uppercase;letter-spacing:.6px;margin-bottom:6px;font-size:.68rem;font-weight:800}.why-text{color:#5a7080;font-size:.85rem;line-height:1.6}.tag-row{flex-wrap:wrap;gap:6px;padding:0 18px 16px;display:flex}.tag{color:#3a6a88;background:#eef4f8;border-radius:20px;padding:5px 12px;font-size:.75rem;font-weight:500}.no-results{text-align:center;color:#aaa;padding:24px;font-size:.9rem}.buy-row{gap:10px;padding:0 18px 18px;display:flex}.buy-btn{text-align:center;border-radius:12px;flex:1;padding:12px;font-family:Inter,sans-serif;font-size:.85rem;font-weight:700;text-decoration:none;transition:opacity .15s}.buy-btn:active{opacity:.75}.buy-bol{color:#fff;background:#10466c}.buy-amazon{color:#fff;background:#c89a2a}