.theme-text{color:var(--page-text);transition:color .3s}.theme-text-secondary{color:var(--page-text-secondary);transition:color .3s}.theme-heading{color:var(--page-heading);transition:color .3s}.theme-bg{background:var(--page-bg);transition:background .3s}.theme-bg-gradient{background:linear-gradient(180deg,var(--page-bg-gradient-start),var(--page-bg-gradient-end));transition:background .3s}.theme-card{transition:all .3s;background:var(--page-card-bg)!important;border-color:var(--page-card-border)!important}.theme-card:hover{box-shadow:0 10px 25px var(--page-shadow-lg);background:var(--page-card-hover)!important}.theme-input{transition:all .3s;background:var(--page-input-bg)!important;border-color:var(--page-input-border)!important;color:var(--page-input-text)!important}.theme-input::placeholder{color:var(--page-text-secondary);opacity:.6}.theme-input:focus{outline:none;box-shadow:0 0 0 3px #3b82f61a;border-color:var(--accent)!important}
.reaction-bar{align-items:center;gap:var(--space-3);padding:var(--space-3)0;margin:var(--space-4)0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);flex-wrap:wrap;display:flex}.reaction-bar__buttons{gap:var(--space-2);flex-wrap:wrap;display:flex}.reaction-btn{border:1px solid var(--border);background:var(--bg-primary);color:var(--text-secondary);font-size:var(--text-sm);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:9999px;align-items:center;gap:6px;padding:6px 14px;transition:all .2s;display:inline-flex}.reaction-btn:hover:not(:disabled){border-color:var(--accent);background:var(--bg-secondary);transform:scale(1.05)}.reaction-btn--active{border-color:var(--accent);background:color-mix(in srgb,var(--accent)10%,transparent);color:var(--accent);font-weight:var(--font-medium)}.reaction-btn:disabled{opacity:.6;cursor:not-allowed}.reaction-btn__emoji{font-size:1.1em;line-height:1}.reaction-btn__count{font-size:var(--text-xs);font-weight:var(--font-semibold)}.reaction-bar__total{color:var(--text-tertiary);font-size:var(--text-xs);margin-left:auto}.bookmark-btn{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-secondary);font-size:var(--text-sm);cursor:pointer;align-items:center;gap:6px;padding:6px 12px;transition:all .2s;display:inline-flex}.bookmark-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.bookmark-btn--active{color:var(--accent);border-color:var(--accent)}.bookmark-btn--compact{padding:4px 8px}.bookmark-btn:disabled{opacity:.6;cursor:not-allowed}.bookmark-btn__label{font-size:var(--text-xs);font-weight:var(--font-medium)}.save-btn{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-secondary);font-size:var(--text-sm);cursor:pointer;align-items:center;gap:6px;padding:6px 12px;transition:all .2s;display:inline-flex}.save-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.save-btn--active{color:var(--accent);border-color:var(--accent);background:color-mix(in srgb,var(--accent)8%,transparent)}.save-btn:disabled{opacity:.6;cursor:not-allowed}.save-btn__label{font-size:var(--text-xs);font-weight:var(--font-medium)}.article-meta__actions{align-items:center;gap:var(--space-2);display:flex}.comment-section{margin:var(--space-6)0;padding-top:var(--space-4);border-top:2px solid var(--border)}.comment-section__title{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--text-primary);margin-bottom:var(--space-4)}.comment-section__count{font-weight:var(--font-normal);color:var(--text-tertiary);font-size:var(--text-lg)}.comment-section__loading,.comment-section__empty{color:var(--text-tertiary);font-size:var(--text-sm);padding:var(--space-4)0}.comment-form{gap:var(--space-2);margin-bottom:var(--space-4);flex-direction:column;display:flex}.comment-form__name{padding:var(--space-2)var(--space-3);border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-primary);font-size:var(--text-sm)}.comment-form__textarea{padding:var(--space-2)var(--space-3);border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-primary);font-size:var(--text-sm);resize:vertical;min-height:80px;font-family:inherit}.comment-form__textarea:focus,.comment-form__name:focus{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent)20%,transparent);outline:none}.comment-form__error{color:var(--error,#ef4444);font-size:var(--text-xs)}.comment-form__actions{align-items:center;gap:var(--space-2);display:flex}.comment-form__submit{padding:var(--space-2)var(--space-4);border-radius:var(--radius-md);background:var(--accent);color:#fff;font-size:var(--text-sm);font-weight:var(--font-medium);cursor:pointer;border:none;transition:opacity .2s}.comment-form__submit:hover:not(:disabled){opacity:.9}.comment-form__submit:disabled{opacity:.5;cursor:not-allowed}.comment-form__cancel{padding:var(--space-2)var(--space-3);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-secondary);font-size:var(--text-sm);cursor:pointer;background:0 0}.comment-list{gap:var(--space-3);flex-direction:column;display:flex}.comment-item{padding:var(--space-3);border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-primary)}.comment-item--reply{margin-left:var(--space-4);border-left:3px solid var(--accent);background:var(--bg-secondary)}.comment-item__header{align-items:center;gap:var(--space-2);margin-bottom:var(--space-2);flex-wrap:wrap;display:flex}.comment-item__author{font-weight:var(--font-semibold);color:var(--text-primary);font-size:var(--text-sm)}.comment-item__date{color:var(--text-tertiary);font-size:var(--text-xs)}.comment-item__edited{color:var(--text-tertiary);font-size:var(--text-xs);font-style:italic}.comment-item__content{color:var(--text-primary);font-size:var(--text-sm);margin-bottom:var(--space-2);white-space:pre-wrap;line-height:1.6}.comment-item__actions{gap:var(--space-2);display:flex}.comment-action-btn{font-size:var(--text-xs);color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;padding:2px 8px;transition:color 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var(--border);border-radius:50%;overflow:hidden}.author-page__img{object-fit:cover;width:100%;height:100%}.author-page__fallback{color:#fff;width:100%;height:100%;font-weight:var(--font-bold);font-size:var(--text-2xl);background:linear-gradient(135deg,#3b82f6,#6366f1);justify-content:center;align-items:center;display:flex}.author-page__name{font-size:var(--text-3xl);font-weight:var(--font-bold);color:var(--text-primary);margin-bottom:var(--space-1)}.author-page__title{color:var(--text-secondary);font-size:var(--text-lg);margin-bottom:var(--space-1)}.author-page__org{color:var(--text-tertiary);font-size:var(--text-sm);margin-bottom:var(--space-3)}.author-page__bio{color:var(--text-primary);font-size:var(--text-base);max-width:600px;margin:0 auto 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#00000014}.author-article-card__image{display:block}.author-article-card__img{object-fit:cover;width:100%;height:180px}.author-article-card__content{padding:var(--space-3)var(--space-4)}.author-article-card__category{font-size:var(--text-xs);color:var(--accent);text-transform:uppercase;font-weight:var(--font-semibold);letter-spacing:.5px}.author-article-card__title{font-size:var(--text-base);font-weight:var(--font-semibold);color:var(--text-primary);margin:var(--space-1)0;line-height:1.4}.author-article-card__excerpt{color:var(--text-secondary);font-size:var(--text-sm);margin-bottom:var(--space-2);line-height:1.5}.author-article-card__date{color:var(--text-tertiary);font-size:var(--text-xs)}.reading-lists-page{max-width:1000px;padding:var(--space-6)var(--space-4);margin:0 auto}.reading-lists-page__loading{text-align:center;color:var(--text-tertiary);padding:var(--space-8)0}.reading-lists-page__auth{text-align:center;padding:var(--space-8)0}.reading-lists-page__auth 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.cat-hero{--cat-accent-rgb:7,116,232;background:linear-gradient(135deg,var(--cat-gradient-from,#eff6ff)0%,var(--cat-gradient-to,#dbeafe)100%);border-bottom:1px solid #0000000f;padding:3.5rem 0 3rem;position:relative;overflow:hidden}.cat-hero__inner{grid-template-columns:1fr;align-items:center;gap:0;max-width:1200px;margin:0 auto;padding:0 1.5rem;display:grid}.cat-hero__bg-svg{width:340px;height:340px;color:var(--cat-accent,#0774e8);pointer-events:none;opacity:.55;z-index:0;animation:8s ease-in-out infinite catHeroFloat;position:absolute;top:-20px;right:-30px}@keyframes 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.18s}.cat-hero__pill:hover{background:rgba(var(--cat-accent-rgb,7,116,232),.12);border-color:var(--cat-accent,#0774e8);transform:scale(1.06)translateY(-1px)}.cat-hero__search-wrap{border:1.5px solid rgba(var(--cat-accent-rgb,7,116,232),.3);background:#ffffffd9;border-radius:100px;align-items:center;gap:0;max-width:480px;transition:border-color .2s,box-shadow .2s;display:flex;overflow:hidden}.cat-hero__search-wrap:focus-within{border-color:var(--cat-accent,#0774e8);box-shadow:0 0 0 3px rgba(var(--cat-accent-rgb,7,116,232),.15)}.cat-hero__search-input{color:var(--text-primary,#111827);background:0 0;border:none;outline:none;flex:1;min-width:0;padding:.65rem 1rem;font-size:.9rem}.cat-hero__search-input::placeholder{color:#9ca3af}.cat-hero__search-btn{color:var(--cat-accent,#0774e8);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:.5rem 1rem;font-size:.85rem;transition:opacity .15s;display:flex}.cat-hero__search-btn:hover{opacity:.7}.cat-hero__cta{background:var(--cat-accent,#0774e8);width:fit-content;box-shadow:0 4px 14px rgba(var(--cat-accent-rgb,7,116,232),.35);border-radius:100px;align-items:center;gap:.5rem;padding:.7rem 1.5rem;font-size:.9rem;font-weight:700;text-decoration:none;transition:transform .2s,box-shadow .2s,opacity .15s;animation:3s ease-in-out infinite catCtaPulse;display:inline-flex;color:#fff!important}.cat-hero__cta:hover{box-shadow:0 6px 20px rgba(var(--cat-accent-rgb,7,116,232),.45);animation:none;transform:translateY(-2px)}.cat-hero__cta-arrow{transition:transform .2s}.cat-hero__cta:hover .cat-hero__cta-arrow{transform:translate(3px)}@keyframes catCtaPulse{0%,to{box-shadow:0 4px 14px rgba(var(--cat-accent-rgb,7,116,232),.35)}50%{box-shadow:0 4px 22px rgba(var(--cat-accent-rgb,7,116,232),.55)}}.cat-hero__right{z-index:1;position:relative}.cat-hero__featured{background:#ffffffe0;border:1px solid #ffffffb3;border-radius:1.25rem;text-decoration:none;transition:transform .28s,box-shadow .28s;display:block;overflow:hidden;box-shadow:0 4px 6px -1px #00000012,0 10px 32px -4px #0000001a}.cat-hero__featured:hover{transform:translateY(-5px);box-shadow:0 8px 12px -2px #00000017,0 20px 48px -6px #00000024}.cat-hero__featured-img{object-fit:cover;width:100%;height:220px;display:block}.cat-hero__featured-img-placeholder{background:linear-gradient(135deg,color-mix(in srgb,var(--cat-accent,#0774e8)15%,white)0%,color-mix(in srgb,var(--cat-accent,#0774e8)8%,white)100%);justify-content:center;align-items:center;width:100%;height:220px;display:flex}.cat-hero__featured-img-placeholder svg{width:60px;height:60px;color:var(--cat-accent,#0774e8);opacity:.25}.cat-hero__featured-body{padding:1.25rem 1.4rem 1.5rem}.cat-hero__featured-label{letter-spacing:.1em;text-transform:uppercase;color:var(--cat-accent,#0774e8);margin-bottom:.6rem;font-size:.7rem;font-weight:700}.cat-hero__featured-title{color:var(--text-primary,#111827);-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;margin:0 0 .6rem;font-size:1.1rem;font-weight:700;line-height:1.35;display:-webkit-box;overflow:hidden}.cat-hero__featured-excerpt{color:var(--text-secondary,#6b7280);-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;margin:0 0 1rem;font-size:.85rem;line-height:1.55;display:-webkit-box;overflow:hidden}.cat-hero__featured-meta{color:var(--text-tertiary,#9ca3af);align-items:center;gap:.6rem;font-size:.78rem;display:flex}.cat-hero__featured-meta-sep{opacity:.4}.cat-hero__featured-read-more{color:var(--cat-accent,#0774e8);align-items:center;gap:.25rem;margin-left:auto;font-size:.78rem;font-weight:700;text-decoration:none;display:flex}.cat-hero--loading .cat-hero__left>*{display:none}.cat-hero__skeleton-left,.cat-hero__skeleton-right{flex-direction:column;gap:.85rem;display:flex}.cat-hero__skeleton-bar{background:linear-gradient(90deg,#e5e7eb 25%,#f3f4f6 50%,#e5e7eb 75%) 0 0/200% 100%;border-radius:6px;height:14px;animation:1.5s infinite catSkeletonShimmer}.cat-hero__skeleton-bar--title{border-radius:8px;width:78%;height:52px}.cat-hero__skeleton-bar--desc{width:92%}.cat-hero__skeleton-bar--desc2{width:70%}.cat-hero__skeleton-card{background:linear-gradient(90deg,#e5e7eb 25%,#f3f4f6 50%,#e5e7eb 75%) 0 0/200% 100%;border-radius:1.25rem;height:400px;animation:1.5s infinite catSkeletonShimmer;overflow:hidden}@keyframes catSkeletonShimmer{0%{background-position:200% 0}to{background-position:-200% 0}}[data-theme=dark] .cat-hero{background:linear-gradient(135deg,color-mix(in srgb,var(--cat-accent,#0774e8)6%,#0f172a)0%,#0f172a 100%);border-bottom-color:#ffffff0f}[data-theme=dark] .cat-hero__description{color:#94a3b8}[data-theme=dark] .cat-hero__pill{border-color:rgba(var(--cat-accent-rgb,7,116,232),.35);color:var(--cat-accent,#0774e8);background:#ffffff0d}[data-theme=dark] .cat-hero__pill:hover{background:rgba(var(--cat-accent-rgb,7,116,232),.18)}[data-theme=dark] .cat-hero__search-wrap{border-color:rgba(var(--cat-accent-rgb,7,116,232),.4);background:#ffffff0f}[data-theme=dark] .cat-hero__search-input{color:#e2e8f0}[data-theme=dark] .cat-hero__search-input::placeholder{color:#64748b}[data-theme=dark] .cat-hero__featured{background:#1e293beb;border-color:#ffffff14;box-shadow:0 4px 6px -1px #0000004d,0 10px 32px -4px #0006}[data-theme=dark] .cat-hero__featured-title{color:#f1f5f9}[data-theme=dark] .cat-hero__featured-excerpt{color:#94a3b8}[data-theme=dark] .cat-hero__featured-meta{color:#64748b}[data-theme=dark] .cat-hero__skeleton-bar,[data-theme=dark] .cat-hero__skeleton-card{background:linear-gradient(90deg,#1e293b 25%,#334155 50%,#1e293b 75%) 0 0/200% 100%;animation:1.5s infinite catSkeletonShimmer}[data-theme=dark] .cat-hero__count{background:rgba(var(--cat-accent-rgb,7,116,232),.12);border-color:rgba(var(--cat-accent-rgb,7,116,232),.25)}.cat-hero[data-category=home]{--cat-accent:#0774e8;--cat-accent-rgb:7,116,232;--cat-gradient-from:#eff6ff;--cat-gradient-to:#e0f2fe}.cat-hero[data-category=science]{--cat-accent:#0774e8;--cat-accent-rgb:7,116,232;--cat-gradient-from:#eff6ff;--cat-gradient-to:#dbeafe}.cat-hero[data-category=technology]{--cat-accent:#8b5cf6;--cat-accent-rgb:139,92,246;--cat-gradient-from:#f5f3ff;--cat-gradient-to:#ede9fe}.cat-hero[data-category=discoveries]{--cat-accent:#f59e0b;--cat-accent-rgb:245,158,11;--cat-gradient-from:#fffbeb;--cat-gradient-to:#fef3c7}.cat-hero[data-category=health-biology]{--cat-accent:#10b981;--cat-accent-rgb:16,185,129;--cat-gradient-from:#ecfdf5;--cat-gradient-to:#d1fae5}.cat-hero[data-category=life-on-earth]{--cat-accent:#22c55e;--cat-accent-rgb:34,197,94;--cat-gradient-from:#f0fdf4;--cat-gradient-to:#dcfce7}.cat-hero[data-category=space-astronomy]{--cat-accent:#6366f1;--cat-accent-rgb:99,102,241;--cat-gradient-from:#eef2ff;--cat-gradient-to:#e0e7ff}[data-theme=dark] .cat-hero[data-category=home],[data-theme=dark] .cat-hero[data-category=science]{--cat-accent:#3b9fff;--cat-accent-rgb:59,159,255}[data-theme=dark] .cat-hero[data-category=technology]{--cat-accent:#a78bfa;--cat-accent-rgb:167,139,250}[data-theme=dark] .cat-hero[data-category=discoveries]{--cat-accent:#fbbf24;--cat-accent-rgb:251,191,36}[data-theme=dark] .cat-hero[data-category=health-biology]{--cat-accent:#34d399;--cat-accent-rgb:52,211,153}[data-theme=dark] .cat-hero[data-category=life-on-earth]{--cat-accent:#4ade80;--cat-accent-rgb:74,222,128}[data-theme=dark] .cat-hero[data-category=space-astronomy]{--cat-accent:#818cf8;--cat-accent-rgb:129,140,248}@media (max-width:900px){.cat-hero__inner{grid-template-columns:1fr;gap:2rem}.cat-hero__description{max-width:100%}.cat-hero__bg-svg{opacity:.3;width:220px;height:220px}}@media (max-width:600px){.cat-hero{padding:2.25rem 0 2rem}.cat-hero__inner{gap:1.5rem;padding:0 1rem}.cat-hero__title{font-size:1.85rem}.cat-hero__search-wrap{max-width:100%}.cat-hero__bg-svg{display:none}}