:root{--app-pad:28px;--app-pad-narrow:16px}body,html{height:100%}body{margin:0;height:100dvh;min-height:0;display:flex;flex-direction:column;overflow:hidden;overscroll-behavior:none;background:var(--color-surface);color:var(--color-text);-webkit-text-size-adjust:100%}::selection{background:var(--ub-wash);color:var(--color-text)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:rgba(17,36,70,.22);border-radius:var(--radius-pill);border:3px solid transparent;background-clip:content-box}.app-header{--ub-avatar-bg:var(--ub-tint);--ub-avatar-fg:var(--color-brand-primary);--ub-logo-accent:var(--color-brand-primary);display:flex;align-items:center;gap:10px;min-height:58px;padding:8px max(14px,env(safe-area-inset-right)) 8px max(16px,env(safe-area-inset-left));border-bottom:1px solid var(--section-border);background:var(--section-bg);z-index:10}.app-header,.app-logo{flex:0 0 auto;color:var(--section-fg)}.app-logo{font-size:var(--text-base);font-weight:600;letter-spacing:-.01em;text-decoration:none;white-space:nowrap}.app-logo:hover{color:var(--section-fg);text-decoration:none}.app-logo span{color:var(--ub-logo-accent)}.app-crumb{flex:0 1 auto;min-width:0;display:flex;align-items:center;gap:7px;font-size:13px;color:var(--section-muted);overflow:hidden;white-space:nowrap}.app-logo,.app-mode-switch,.btn-back{flex:0 0 auto}.app-crumb strong{font-weight:400;color:var(--section-fg)}.app-crumb strong,.app-crumb-book{min-width:0;overflow:hidden;text-overflow:ellipsis}.app-crumb-book{color:var(--section-muted);text-decoration:none}.app-crumb-book:hover{color:var(--section-link);text-decoration:none}.app-crumb-sep{flex:none;opacity:.5}.btn-back{display:inline-flex;align-items:center;gap:6px;min-height:32px;padding:6px 8px;border:0;border-radius:var(--radius-md);background:transparent;font-size:13.5px}.btn-back,.btn-back:hover{color:var(--section-fg);text-decoration:none}.btn-back:hover{background:color-mix(in srgb,var(--section-accent) 9%,transparent)}.app-mode-switch{display:flex;gap:2px;padding:3px;border:1px solid var(--section-border);border-radius:var(--radius-pill);background:color-mix(in srgb,var(--section-fg) 4%,var(--section-bg))}.app-mode-btn{display:inline-flex;align-items:center;gap:6px;background:none;border:0;border-radius:var(--radius-pill);padding:5px 11px;font-size:12.5px;color:var(--section-muted);cursor:pointer;white-space:nowrap;transition:background .15s ease,color .15s ease}.app-mode-btn:hover:not(.is-active){background:color-mix(in srgb,var(--section-fg) 7%,transparent);color:var(--section-fg)}.app-mode-btn:focus-visible{outline:2px solid var(--section-accent);outline-offset:1px}.app-mode-btn.is-active{background:var(--section-accent);color:var(--section-on-accent);cursor:default}.app-spacer{flex:1 1 auto;min-width:8px}.app-project-nav{display:flex;align-items:center;gap:4px;min-width:0}.app-admin-btn,.app-nav-arrow,.app-settings-btn{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;min-height:0;padding:0;border:1px solid var(--section-border);border-radius:var(--radius-md);background:transparent;color:var(--section-fg);text-decoration:none}.app-admin-btn:hover,.app-nav-arrow:hover:not(:disabled),.app-settings-btn:hover{background:color-mix(in srgb,var(--section-fg) 6%,transparent);color:var(--section-fg)}.app-admin-btn .app-label,.app-nav-arrow .app-label,.app-settings-btn .app-label{display:none}.app-nav-arrow:disabled{opacity:.4;cursor:default}.app-nav-select{height:32px;max-width:210px;min-width:0;padding:0 8px;border:1px solid var(--section-border);border-radius:var(--radius-md);background:color-mix(in srgb,var(--section-fg) 4%,var(--section-bg));color:var(--section-fg);font-size:12.5px;cursor:pointer}.app-nav-select:hover{border-color:var(--section-accent)}.app-nav-select:focus-visible{outline:2px solid var(--section-accent);outline-offset:1px}.app-nav-select:disabled{opacity:.4;cursor:default}.app-shuffle-btn{border-radius:var(--radius-pill);padding-inline:12px;font-size:12.5px}.app-shuffle-btn.is-active{border-color:var(--section-accent);background:var(--section-accent);color:var(--section-on-accent)}.app-account{padding-left:8px;border-left:1px solid var(--section-border);margin-left:2px}.app-signout-btn{width:30px;height:30px;min-height:0;padding:0;border-color:transparent;background:transparent;color:var(--section-muted)}.app-signout-btn .app-label{display:none}main{flex:1 1 auto;min-height:0;width:100%;max-width:var(--container-wide);align-self:center;display:flex;flex-direction:column;overflow:hidden}body.is-player main{padding:10px max(10px,env(safe-area-inset-right)) max(10px,env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left))}body.is-reel main{max-width:none}body.is-admin,body.is-book,body.is-library,body.is-settings{background:var(--color-surface-alt)}body.is-reel{background:var(--ub-stage)}body.is-reel .app-header{--section-bg:var(--colorset-dark-bg);--section-fg:var(--colorset-dark-fg);--section-muted:var(--colorset-dark-muted);--section-link:var(--colorset-dark-link);--section-border:var(--colorset-dark-border);--section-accent:var(--colorset-dark-accent);--section-on-accent:var(--colorset-dark-on-accent);--ub-avatar-bg:var(--ub-stage-line);--ub-avatar-fg:var(--ub-on-dark);--ub-logo-accent:var(--ub-on-dark-icon)}.home{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;background:var(--color-surface-alt)}.home-tabs{flex:0 0 auto;display:flex;gap:26px;padding:18px var(--app-pad) 0;padding-left:max(var(--app-pad),env(safe-area-inset-left));padding-right:max(var(--app-pad),env(safe-area-inset-right));background:var(--color-surface);border-bottom:1px solid var(--ub-line)}.home-tab{display:inline-flex;align-items:center;gap:7px;background:none;border:0;border-bottom:2px solid transparent;color:var(--color-text-muted);font-size:var(--text-sm);padding:0 0 12px;cursor:pointer;transition:color .15s ease,border-color .15s ease}.home-tab:hover{color:var(--color-text)}.home-tab.is-active{color:var(--color-brand-primary);border-bottom-color:var(--color-brand-primary)}.home-toolbar{flex:0 0 auto;display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:14px var(--app-pad);padding-left:max(var(--app-pad),env(safe-area-inset-left));padding-right:max(var(--app-pad),env(safe-area-inset-right));background:var(--color-surface);border-bottom:1px solid var(--ub-line)}.home-search{flex:1 1 auto;min-width:180px;max-width:380px;height:40px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23313F58' stroke-width='1.7'%3E%3Ccircle cx='11' cy='11' r='6.4'/%3E%3Cpath d='m15.8 15.8 4 4' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat 11px 50% /17px 17px;color:var(--color-text);padding:0 12px 0 34px;font-size:var(--text-sm)}.home-search::placeholder{color:var(--color-text-muted)}.home-search:focus{outline:none;border-color:var(--color-brand-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-brand-primary) 14%,transparent)}.home-toolbar .btn:first-of-type{margin-left:auto}.home-allowance{font-size:var(--text-xs);color:var(--color-text-muted);white-space:nowrap}.home-allowance.is-full{color:var(--color-warning);font-weight:600}.home-add:disabled{opacity:.55;cursor:not-allowed}.home-chips{flex:0 0 auto;display:flex;flex-wrap:wrap;gap:8px;padding:12px var(--app-pad) 0;padding-left:max(var(--app-pad),env(safe-area-inset-left));padding-right:max(var(--app-pad),env(safe-area-inset-right))}.home-chips[hidden]{display:none}.chip{background:var(--color-surface);border:1px solid var(--ub-line);color:var(--color-text);border-radius:var(--radius-pill);padding:6px 14px;font-size:13px;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}.chip.is-active,.chip:hover{border-color:var(--color-brand-primary)}.chip.is-active{background:var(--color-brand-primary);color:var(--color-brand-primary-contrast)}.home-status{flex:0 0 auto;display:flex;gap:10px;align-items:flex-start;margin:12px var(--app-pad) 0;padding:12px 14px;border:1px solid color-mix(in srgb,var(--color-brand-primary) 25%,transparent);border-radius:var(--radius-md);background:var(--ub-tint);color:var(--color-text);font-size:13px;line-height:1.55}.home-status:empty{display:none}.home-sections{flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;display:flex;flex-direction:column;gap:var(--space-lg);padding:16px var(--app-pad) 28px;padding-left:max(var(--app-pad),env(safe-area-inset-left));padding-right:max(var(--app-pad),env(safe-area-inset-right));padding-bottom:max(28px,env(safe-area-inset-bottom))}.home-section-head{margin-bottom:14px}.home-section-title{margin:0;font-size:var(--text-xl);font-weight:500;color:var(--color-text)}.home-section-hint{margin:4px 0 0;font-size:13.5px;color:var(--color-text-muted)}.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:18px;gap:18px}.card{background:var(--color-surface);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--ub-shadow-card);display:flex;flex-direction:column;transition:box-shadow .18s ease,transform .18s ease}.card:hover{box-shadow:0 6px 18px rgba(17,36,70,.13);transform:translateY(-2px)}.card-thumb-wrap{position:relative;aspect-ratio:16/9;background:var(--ub-wash)}.card-thumb{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}.card-thumb-empty{display:grid;place-items:center;background:var(--ub-wash);color:var(--color-brand-secondary);opacity:.55}.card-badge{position:absolute;left:10px;bottom:10px;background:rgba(255,255,255,.92);color:var(--color-text);border:0;border-radius:var(--radius-sm);font-size:11.5px;padding:3px 9px;cursor:pointer}.card-badge.is-empty{color:var(--color-text-muted)}.card-badge:hover{background:var(--color-surface);color:var(--color-brand-primary)}.card-archived,.card-draft{position:absolute;right:10px;top:10px;border:0;border-radius:var(--radius-sm);font-size:11.5px;padding:3px 9px}.card-draft{background:var(--color-warning);color:var(--color-warning-contrast);cursor:pointer}.card-draft:hover{background:color-mix(in srgb,var(--color-warning) 86%,var(--color-text))}.card-archived{background:rgba(255,255,255,.92);color:var(--color-text-muted)}.card-body{flex:1 1 auto;padding:13px 15px 4px}.card-title{display:flex;align-items:flex-start;gap:6px;margin:0;font-size:var(--text-base);font-weight:500;line-height:1.35;color:var(--color-text);overflow:hidden;text-overflow:ellipsis}.card-warn{margin-top:3px;color:var(--color-warning)}.card-byline{margin:5px 0 0;font-size:13px}.card-byline,.card-meta{color:var(--color-text-muted)}.card-meta{display:flex;gap:14px;margin-top:10px;font-size:12.5px}.card-meta span{display:inline-flex;align-items:center;gap:5px}.card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:11px}.card-tag{background:var(--ub-tint);border-radius:var(--radius-sm);padding:3px 8px;font-size:11.5px;color:var(--color-brand-primary)}.card-actions{display:flex;gap:8px;align-items:center;padding:12px 15px 15px;margin-top:auto}.card-view{flex:1 1 auto}.card-action{flex:0 0 auto}.home-empty{grid-column:1/-1;max-width:420px;margin:52px auto;text-align:center}.home-empty,.home-empty p{color:var(--color-text-muted)}.home-empty p{margin:8px 0 0;font-size:var(--text-sm);line-height:1.6}.home-empty-icon{display:grid;place-items:center;width:64px;height:64px;margin:0 auto 18px;border-radius:var(--radius-pill);background:var(--ub-tint);color:var(--color-brand-primary)}.home-empty-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:20px}.card-draft.is-static,.chip.is-static{cursor:default;pointer-events:none}.card-draft.is-static{position:static;border:1px solid rgba(0,0,0,.14);background:transparent;color:var(--color-text-muted);font-size:11px;padding:2px 7px}.book{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;position:relative;overflow:hidden;background:var(--color-surface-alt)}.book-head{flex:0 0 auto;padding:18px var(--app-pad) 16px;padding-left:max(var(--app-pad),env(safe-area-inset-left));padding-right:max(var(--app-pad),env(safe-area-inset-right));background:var(--color-surface);border-bottom:1px solid var(--ub-line)}.book-headline{display:flex;align-items:flex-start;gap:var(--space-sm)}.book-identity{flex:1 1 auto;min-width:0}.book-title{margin:0;font-size:28px;font-weight:300;line-height:1.2;color:var(--color-text);cursor:text;border-radius:var(--radius-md);overflow-wrap:anywhere}.book-title:hover{color:var(--color-brand-primary)}.book-title:focus-visible{outline:2px solid var(--color-brand-primary);outline-offset:2px}.book-settings-btn{flex:0 0 auto}.book-byline{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;margin:6px 0 0;font-size:13px;color:var(--color-text-muted)}.book-add-description{display:inline-flex;align-items:center;gap:5px;padding:0;border:0;background:none;font-size:13px;color:var(--color-brand-primary);cursor:pointer}.book-add-description:hover{text-decoration:underline;text-underline-offset:3px}.book-add-description:focus-visible{outline:2px solid var(--color-brand-primary);outline-offset:2px;border-radius:var(--radius-sm)}.book-description{margin:8px 0 0;max-width:70ch;font-size:13.5px;line-height:1.55;color:var(--color-text-muted);cursor:text;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.book-description:hover{color:var(--color-text)}.book-description:focus-visible{outline:2px solid var(--color-brand-primary);outline-offset:2px;border-radius:var(--radius-sm)}.book-actions{display:flex;align-items:center;gap:var(--space-xs);flex-wrap:wrap;margin:14px 0 0}.book-reel-cta{display:inline-flex;align-items:stretch;border-radius:var(--radius-md);overflow:hidden;background:var(--color-brand-primary);box-shadow:var(--ub-shadow-card)}.book-reel-play{display:inline-flex;align-items:center;border:0;border-radius:0;padding-inline:var(--space-sm);background:transparent}.book-reel-play,.book-reel-play:hover{color:var(--color-brand-primary-contrast)}.book-reel-play:hover{background:rgba(255,255,255,.14);border-color:transparent}.book-reel-count{padding:1px 8px;border-radius:var(--radius-pill);background:rgba(255,255,255,.22);font-size:11.5px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.book-reel-count,.book-reel-shuffle{color:var(--color-brand-primary-contrast)}.book-reel-shuffle{border:0;border-left:1px solid rgba(255,255,255,.28);border-radius:0;background:transparent;padding-inline:12px;font-size:13px}.book-reel-shuffle:hover{background:rgba(255,255,255,.14);color:var(--color-brand-primary-contrast)}.book-reel-shuffle.is-active,.book-reel-shuffle.is-active:hover{background:var(--color-surface);color:var(--color-brand-primary)}.book-panel{position:absolute;top:0;right:0;bottom:0;z-index:4;display:flex;flex-direction:column;width:min(380px,92vw);background:var(--color-surface);border-left:1px solid var(--ub-line);box-shadow:var(--ub-shadow-modal);padding-right:env(safe-area-inset-right);visibility:hidden;transform:translateX(100%);transition:transform .22s ease,visibility .22s}.book-panel.is-open{visibility:visible;transform:none}.book-scrim{position:absolute;inset:0;z-index:3;background:rgba(17,36,70,.32)}.book-scrim[hidden]{display:none}.book-panel-head{display:flex;align-items:center;gap:var(--space-xs);flex:0 0 auto;padding:14px 16px 12px;border-bottom:1px solid var(--ub-line)}.book-panel-heading{flex:1 1 auto;min-width:0;margin:0;font-size:16px;font-weight:400;color:var(--color-text)}.book-panel-close{flex:0 0 auto;display:grid;place-items:center;width:30px;height:30px;border-radius:var(--radius-md);border:0;background:transparent;color:var(--color-text-muted);cursor:pointer}.book-panel-close:hover{background:var(--ub-tint);color:var(--color-text)}.book-panel-close:focus-visible{outline:2px solid var(--color-brand-primary);outline-offset:1px}.book-panel-body{flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:4px 16px max(20px,env(safe-area-inset-bottom))}.book-panel-group{margin:20px 0 10px;font-size:11px;font-weight:500;letter-spacing:.07em;text-transform:uppercase;color:var(--color-text-muted)}.book-field{margin-bottom:12px}.book-field label{display:block;margin-bottom:5px;font-size:12.5px;color:var(--color-text-muted)}.book-field input,.book-field select,.book-field textarea{width:100%;padding:8px 10px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);font-size:var(--text-sm)}.book-field textarea{resize:vertical;line-height:1.5}.book-field input:focus,.book-field select:focus,.book-field textarea:focus{outline:none;border-color:var(--color-brand-primary);box-shadow:0 0 0 3px var(--ub-tint)}.book-panel-btn{display:flex;width:100%;align-items:flex-start;justify-content:flex-start;gap:var(--space-xs);margin-bottom:8px;padding:10px 12px;min-height:44px;text-align:left;white-space:normal}.book-panel-btn-label{display:flex;flex-direction:column;gap:2px;min-width:0}.book-panel-btn-hint{font-size:11.5px;line-height:1.4;color:var(--color-text-muted)}.book-panel-btn.btn-danger .book-panel-btn-hint{color:inherit;opacity:.75}.book-panel-btn>.ub-icon{margin-top:2px}.book-toc{flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;list-style:none;margin:0;padding:14px var(--app-pad) 32px;padding-left:max(var(--app-pad),env(safe-area-inset-left));padding-right:max(var(--app-pad),env(safe-area-inset-right));padding-bottom:max(32px,env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:10px}.toc-row{display:flex;align-items:center;gap:14px;padding:12px;background:var(--color-surface);border:1px solid var(--ub-line);border-radius:var(--radius-lg)}.toc-row:hover{border-color:color-mix(in srgb,var(--color-brand-primary) 35%,transparent)}.toc-row.is-incomplete{border-style:dashed;border-color:color-mix(in srgb,var(--color-warning) 45%,transparent)}.toc-number{flex:0 0 auto;width:26px;text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;color:var(--color-text-muted)}.toc-thumb-wrap{flex:0 0 auto;width:108px;aspect-ratio:16/9;border-radius:var(--radius-md);overflow:hidden;background:var(--ub-tint)}.toc-thumb{width:100%;height:100%;object-fit:cover;display:block}.toc-thumb-empty{display:grid;place-items:center;color:var(--color-brand-secondary);opacity:.6}.toc-body{flex:1 1 auto;min-width:0}.toc-title-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.toc-title{background:none;border:none;padding:0;font-size:15px;font-weight:500;line-height:1.3;color:var(--color-text);text-align:left;cursor:text}.toc-title:hover{color:var(--color-brand-primary)}.toc-flag{display:inline-flex;align-items:center;gap:5px;font-size:11px;padding:2px 7px;border-radius:var(--radius-sm);background:#FDF3E7;color:var(--color-warning)}.toc-meta{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:6px;font-size:12.5px;color:var(--color-text-muted)}.toc-meta span{display:inline-flex;align-items:center;gap:5px}.toc-actions{flex:0 0 auto;display:flex;align-items:center;gap:6px}.toc-move{display:flex;flex-direction:column;gap:2px}.toc-arrow{width:26px;height:16px;min-height:0;padding:0;border-radius:0;line-height:1}.toc-move .toc-arrow:first-child{border-radius:var(--radius-sm) var(--radius-sm) 0 0}.toc-move .toc-arrow:last-child{border-radius:0 0 var(--radius-sm) var(--radius-sm)}.toc-actions>.toc-arrow:last-child{width:35px;height:35px;border-radius:var(--radius-md);color:var(--color-error)}.toc-arrow:disabled{opacity:.35;cursor:default}.book-empty{text-align:center;padding:40px 20px;color:var(--color-text-muted)}.book-empty .btn{margin-top:10px}.settings{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;width:100%;align-self:center;background:var(--color-surface-alt)}.settings-head{flex:0 0 auto;width:100%;max-width:880px;margin:0 auto;padding:30px var(--app-pad) 0}.settings-title{margin:0;font-size:34px;font-weight:300;color:var(--color-text)}.settings-sub{margin:10px 0 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