.art-book{--bg-primary:#1a1714;--bg-secondary:#1e1c18;--bg-surface:#22201c;--bg-card:#252118;--bg-elevated:rgba(255,255,255,0.06);--text-primary:#ede0d0;--text-secondary:#d4c4a4;--text-muted:#8a7e6e;--accent-warm:#d4a574;--border-default:rgba(237,224,208,0.08);--font-serif:Georgia,"Times New Roman",serif;max-width:1200px;margin:0 auto;padding:2rem;background:var(--bg-primary);color:var(--text-primary);border-radius:8px}.art-book__title{font-size:1.4rem;font-weight:600;margin:0 0 1rem;color:var(--text-primary,#ede0d0)}.art-book__filters{display:flex;gap:.5rem;margin-bottom:1.5rem;flex-wrap:wrap}.art-book__filter{padding:.35rem .9rem;border:1px solid var(--border-default,color-mix(in srgb,var(--text-primary) 10%,transparent));border-radius:1rem;background:rgba(0,0,0,0);color:var(--text-secondary,inherit);cursor:pointer;font-size:.8rem;transition:all .15s ease}.art-book__filter:hover{background:var(--bg-hover,color-mix(in srgb,var(--text-primary) 5%,transparent))}.art-book__filter--active{background:color-mix(in srgb,var(--accent-warm,#d4a574) 10%,transparent);border-color:color-mix(in srgb,var(--accent-warm,#d4a574) 40%,transparent);color:var(--text-primary)}.art-book__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}@media(max-width:768px){.art-book__grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}.art-book__card{border:1px solid var(--border-subtle,transparent);background:var(--bg-card,color-mix(in srgb,var(--text-primary) 3%,transparent));border-radius:.75rem;overflow:hidden;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;padding:0}.art-book__card:hover{transform:scale(1.02);box-shadow:var(--shadow-hover,0 4px 20px rgba(0,0,0,.3))}.art-book__card-image{width:100%;aspect-ratio:4/3;background-image:var(--bg-image);background-size:cover;background-position:50%;background-color:var(--bg-elevated,color-mix(in srgb,var(--text-primary) 5%,transparent))}.art-book__card-info{padding:.6rem .75rem}.art-book__card-title{font-size:.8rem;font-weight:500;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-primary,inherit)}.art-book__empty{text-align:center;padding:4rem 2rem;color:var(--text-muted);opacity:.6}.art-book__gap-fill-btn{padding:.4rem 1rem;border:1px solid color-mix(in srgb,var(--accent-warm,#d4a574) 40%,transparent);border-radius:.5rem;background:color-mix(in srgb,var(--accent-warm,#d4a574) 10%,transparent);color:var(--text-primary,white);cursor:pointer;font-size:.8rem;transition:all .15s ease}.art-book__gap-fill-btn:hover:not(:disabled){background:color-mix(in srgb,var(--accent-warm,#d4a574) 20%,transparent)}.art-book__gap-fill-btn:disabled{opacity:.5;cursor:not-allowed}.art-book__gap-fill-modal{position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:100;display:flex;align-items:center;justify-content:center}.art-book__gap-fill-modal-inner{background:var(--bg-elevated,#2e2b24);border:1px solid var(--border-default);border-radius:.75rem;padding:1.5rem;max-width:400px;width:90vw}.art-book__gap-fill-modal-inner h4{margin:0 0 1rem;color:var(--text-primary,#ede0d0)}.art-book__gap-fill-modal-inner textarea{width:100%;padding:.5rem .75rem;border:1px solid var(--border-default);border-radius:.5rem;background:var(--bg-surface,#22201c);color:var(--text-primary);font-size:.85rem;resize:vertical;margin-bottom:.75rem}.art-book__gap-fill-modal-inner textarea:focus{outline:none;border-color:color-mix(in srgb,var(--accent-warm) 50%,transparent)}.art-book__gap-fill-modal-inner label{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-secondary);margin-bottom:1rem}.art-book__gap-fill-modal-inner label input[type=number]{width:3rem;padding:.25rem .5rem;border:1px solid var(--border-default);border-radius:.25rem;background:var(--bg-surface);color:var(--text-primary);text-align:center}.art-book__gap-fill-modal-inner div{display:flex;gap:.5rem}.art-book__gap-fill-modal-inner div button{padding:.5rem 1rem;border-radius:.5rem;border:1px solid var(--border-default);background:var(--bg-card);color:var(--text-primary);cursor:pointer;font-size:.85rem}.art-book__gap-fill-modal-inner div button:first-child{border-color:color-mix(in srgb,var(--accent-warm) 40%,transparent);background:color-mix(in srgb,var(--accent-warm) 10%,transparent)}.art-book__gap-fill-modal-inner div button:disabled{opacity:.5;cursor:not-allowed}.art-book__lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:200;display:flex;align-items:center;justify-content:center}.art-book__lightbox-content{max-width:90vw;max-height:90vh;display:flex;flex-direction:column;align-items:center;position:relative}.art-book__lightbox-close{position:absolute;top:-2rem;right:-1rem;background:none;border:none;color:var(--text-muted,color-mix(in srgb,var(--text-primary) 60%,transparent));font-size:2rem;cursor:pointer;z-index:10}.art-book__lightbox-close:hover{color:var(--text-primary,white)}.art-book__lightbox-image{max-width:80vw;max-height:65vh;object-fit:contain;border-radius:.5rem}.art-book__lightbox-meta{padding:1rem 0;text-align:center}.art-book__lightbox-meta h3{margin:0 0 .25rem;font-size:1.1rem;color:var(--text-primary,#ede0d0)}.art-book__lightbox-meta p{margin:0 0 .5rem;font-size:.85rem;color:var(--text-secondary);opacity:.8}.art-book__meta-tag{font-size:.75rem;padding:2px 8px;border-radius:4px;background:var(--bg-elevated,color-mix(in srgb,var(--text-primary) 6%,transparent));color:var(--text-muted);margin:0 .25rem}.art-book__lightbox-nav{display:flex;gap:1rem}.art-book__lightbox-nav button{padding:.4rem 1rem;border:1px solid var(--border-default,color-mix(in srgb,var(--text-primary) 15%,transparent));border-radius:.5rem;background:var(--bg-card,color-mix(in srgb,var(--text-primary) 5%,transparent));color:var(--text-primary,inherit);cursor:pointer;font-size:.85rem}.art-book__lightbox-nav button:hover{background:var(--bg-hover,color-mix(in srgb,var(--text-primary) 10%,transparent))}.art-book__view-toggle{display:flex;gap:0;margin-bottom:1.25rem;border:1px solid var(--border-default);border-radius:8px;overflow:hidden;width:fit-content}.art-book__view-btn{padding:6px 18px;border:none;background:rgba(0,0,0,0);color:var(--text-muted);font-size:.82rem;font-weight:600;cursor:pointer;font-family:var(--font-body);transition:background .12s,color .12s}.art-book__view-btn:hover{background:var(--bg-hover)}.art-book__view-btn--active{background:rgba(212,165,116,.1);color:var(--accent-warm);box-shadow:inset 0 -2px 0 var(--accent-warm)}.art-book__book{display:flex;flex-direction:column;align-items:center;gap:24px;padding:2rem 0}.art-book__book-main{max-width:820px;width:100%;cursor:pointer;position:relative;padding:20px;background:linear-gradient(145deg,#1a1714,#0f0d0a);border-radius:4px;border:1px solid rgba(212,165,116,.12);box-shadow:0 16px 60px rgba(0,0,0,.5),0 4px 16px rgba(0,0,0,.3),inset 0 1px 0 hsla(0,0%,100%,.04),inset 0 -1px 0 rgba(0,0,0,.3)}.art-book__book-main:before{content:"";position:absolute;top:-1px;left:10%;right:10%;height:1px;background:linear-gradient(90deg,transparent,rgba(212,165,116,.25),transparent)}.art-book__book-image{width:100%;height:auto;max-height:560px;object-fit:contain;border-radius:2px;display:block;transition:transform .3s ease}@media(max-width:768px){.art-book__book-image{max-height:320px}}.art-book__book-meta{text-align:center;max-width:640px;padding:0 1rem}.art-book__book-title{margin:0 0 8px;color:var(--text-primary);font-size:1.25rem;font-family:var(--font-serif);font-weight:600;letter-spacing:.01em}.art-book__book-desc{margin:0 0 10px;color:var(--text-secondary);font-size:.88rem;line-height:1.65;font-family:var(--font-serif);font-style:italic}.art-book__book-tags{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}.art-book__book-tag{font-size:.72rem;color:var(--accent-warm);padding:3px 12px;border-radius:4px;background:rgba(212,165,116,.06);border:1px solid rgba(212,165,116,.12);text-transform:uppercase;letter-spacing:.06em;font-weight:500}.art-book__book-nav{display:flex;align-items:center;gap:20px}.art-book__book-nav-btn{padding:8px 22px;background:rgba(26,23,20,.6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(212,165,116,.15);border-radius:8px;color:var(--text-secondary);font-size:.82rem;cursor:pointer;font-family:var(--font-body);transition:background .2s,border-color .2s,transform .15s}.art-book__book-nav-btn:hover:not(:disabled){background:rgba(212,165,116,.08);border-color:rgba(212,165,116,.3);transform:translateX(0)}.art-book__book-nav-btn:first-child:hover:not(:disabled){transform:translateX(-2px)}.art-book__book-nav-btn:last-child:hover:not(:disabled){transform:translateX(2px)}.art-book__book-nav-btn:disabled{opacity:.2;cursor:not-allowed}.art-book__book-counter{color:var(--accent-warm);font-size:.82rem;min-width:70px;text-align:center;font-weight:500;letter-spacing:.04em}.art-book__book-thumbs{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:8px 0;justify-content:center;flex-wrap:wrap;max-width:100%}.art-book__book-thumbs::-webkit-scrollbar{display:none}.art-book__book-thumb{width:56px;height:42px;border-radius:3px;background:50%/cover;border:2px solid rgba(0,0,0,0);cursor:pointer;flex-shrink:0;opacity:.3;transition:opacity .2s,border-color .2s,transform .15s}.art-book__book-thumb:hover{opacity:.65;transform:scale(1.05)}.art-book__book-thumb--active{opacity:1;border-color:var(--accent-warm);box-shadow:0 0 8px rgba(212,165,116,.3)}.art-book__session-label{font-size:.75em;color:var(--accent-warm);font-weight:400;font-style:italic}