.articles-hero{background:radial-gradient(circle at 12% 18%,rgba(52,156,152,.28),transparent 55%),radial-gradient(circle at 88% 82%,rgba(52,156,152,.18),transparent 50%),var(--color-brand-primary);padding:10rem 1.5rem 4rem;text-align:center;position:relative;overflow:hidden}.articles-hero:after{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:linear-gradient(180deg,rgba(0,0,0,0) 50%,rgba(0,0,0,.18))}.articles-hero__container{max-width:800px;margin:0 auto;position:relative;z-index:1}.articles-hero__title{font-size:2.9rem;font-weight:700;color:#fff;margin:0 0 .6rem;letter-spacing:-.03em;line-height:1.12}.articles-hero__subtitle{font-size:1.1rem;color:rgba(255,255,255,.82);margin:0 auto 2rem;line-height:1.6;max-width:54ch;letter-spacing:-.005em}.articles-search{display:flex;gap:.75rem;max-width:650px;margin:0 auto}.articles-search__input-wrapper{flex:1 1;position:relative}.articles-search__icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:1.25rem;height:1.25rem;color:#9ca3af}.articles-search__input{width:100%;padding:.95rem 1.1rem .95rem 3.25rem;font-size:.95rem;color:#0f172a;border:1px solid transparent;border-radius:12px;background:#fff;box-shadow:0 1px 2px rgba(15,23,42,.06),0 10px 30px -10px rgba(15,23,42,.25);transition:border-color .18s ease,box-shadow .22s ease}.articles-search__input:focus{outline:none;border-color:rgba(255,255,255,.6);box-shadow:0 1px 2px rgba(15,23,42,.08),0 14px 36px -10px rgba(15,23,42,.3),0 0 0 4px rgba(255,255,255,.18)}.articles-search__input::placeholder{color:#94a3b8}.articles-search__btn{padding:.95rem 1.5rem;font-size:.95rem;font-weight:600;color:var(--color-link);background:#fff;border:none;border-radius:12px;cursor:pointer;transition:background .18s ease,color .18s ease,transform .15s ease;letter-spacing:-.005em}.articles-search__btn:hover{background:#f8fafc;color:var(--color-link-hover,#002468);transform:translateY(-1px)}.articles-search__save-btn{display:flex;align-items:center;justify-content:center;width:48px;height:48px;padding:0;background:#fff;border:none;border-radius:12px;cursor:pointer;transition:background .18s ease,transform .15s ease}.articles-search__save-btn svg{width:20px;height:20px;color:var(--color-link)}.articles-search__save-btn:hover{background:#f8fafc;transform:translateY(-1px)}.save-search-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.save-search-modal__content{background:#fff;padding:1.5rem;border-radius:16px;width:100%;max-width:400px;animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.save-search-modal__content h3{font-size:1.2rem;font-weight:700;color:#0f172a;margin:0 0 .5rem;letter-spacing:-.015em}.save-search-modal__desc{font-size:.875rem;color:#64748b;margin:0 0 1.25rem;line-height:1.55}.save-search-modal__input{width:100%;padding:.75rem 1rem;font-size:.9375rem;color:#0f172a;border:1px solid #e2e8f0;border-radius:10px;margin-bottom:1rem;transition:border-color .18s ease,box-shadow .18s ease}.save-search-modal__input:focus{outline:none;border-color:var(--color-brand-primary);box-shadow:0 0 0 3px rgba(0,48,135,.12)}.save-search-modal__actions{display:flex;gap:.65rem;justify-content:flex-end}.save-search-modal__cancel{padding:.65rem 1.1rem;font-size:.85rem;font-weight:600;color:#475569;background:#fff;border:1px solid #e2e8f0;border-radius:10px;cursor:pointer;transition:border-color .18s ease,color .18s ease,background .18s ease}.save-search-modal__cancel:hover{background:#f8fafc;border-color:#cbd5e1;color:#0f172a}.save-search-modal__save{padding:.65rem 1.3rem;font-size:.85rem;font-weight:600;color:#fff;background:var(--color-brand-primary);border:none;border-radius:10px;cursor:pointer;transition:background .18s ease,transform .15s ease,box-shadow .22s ease;box-shadow:0 1px 2px rgba(0,48,135,.18);letter-spacing:-.005em}.save-search-modal__save:hover:not(:disabled){background:var(--color-brand-primary-dark);transform:translateY(-1px);box-shadow:0 8px 18px -6px rgba(0,48,135,.32),0 0 0 4px rgba(0,48,135,.08)}.save-search-modal__save:disabled{background:#9ca3af;cursor:not-allowed}.save-search-modal__success{text-align:center;padding:2rem 0}.save-search-modal__success svg{width:48px;height:48px;color:#10b981;margin-bottom:.75rem}.save-search-modal__success p{font-size:1rem;font-weight:600;color:#111827;margin:0}.articles-main{padding:3.5rem 1.5rem 5rem;background:#f8fafc;min-height:60vh}.articles-main__container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:250px 1fr;grid-gap:2rem;gap:2rem}.articles-sidebar{display:flex;flex-direction:column;gap:1rem}.articles-filter-card{background:#fff;padding:1.4rem;border-radius:14px;border:1px solid #e5e7eb;box-shadow:0 1px 2px rgba(15,23,42,.03)}.articles-filter-card h3{font-size:.72rem;font-weight:700;color:#64748b;margin:0 0 .85rem;text-transform:uppercase;letter-spacing:.1em}.articles-filter-select{width:100%;padding:.6rem .85rem;font-size:.875rem;color:#0f172a;border:1px solid #e2e8f0;border-radius:10px;background:#fff;cursor:pointer;transition:border-color .18s ease,box-shadow .18s ease}.articles-filter-select:hover{border-color:#cbd5e1}.articles-filter-select:focus{outline:none;border-color:var(--color-brand-primary);box-shadow:0 0 0 3px rgba(0,48,135,.12)}.articles-list{min-width:0}.articles-list__header{margin-bottom:1.5rem}.articles-list__count{font-size:.78rem;font-weight:500;color:#64748b;text-transform:uppercase;letter-spacing:.08em;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.articles-grid{display:flex;flex-direction:column;gap:1.25rem}.article-card{background:#fff;padding:1.6rem 1.75rem;border-radius:14px;border:1px solid #e5e7eb;transition:border-color .18s ease,box-shadow .22s ease,transform .18s ease;box-shadow:0 1px 2px rgba(15,23,42,.03)}.article-card:hover{border-color:#99CBCA;transform:translateY(-2px);box-shadow:0 10px 24px rgba(15,23,42,.06),0 0 0 4px rgba(52,156,152,.08)}.article-card__meta{display:flex;align-items:center;gap:.85rem;margin-bottom:.75rem;font-size:.78rem}.article-card__journal{color:var(--color-link);text-decoration:none;font-weight:600;text-transform:uppercase;letter-spacing:.06em;font-size:.72rem}.article-card__journal:hover{color:var(--color-link-hover,#002468);text-decoration:underline}.article-card__date{color:#94a3b8;font-weight:500;text-transform:uppercase;letter-spacing:.06em;font-size:.7rem}.article-card__title{font-size:1.18rem;font-weight:600;margin:0 0 .75rem;line-height:1.36;letter-spacing:-.015em;max-width:65ch}.article-card__title a{color:#0f172a;text-decoration:none;transition:color .18s ease}.article-card__title a:hover{color:var(--color-link)}.article-card__abstract{font-size:.9rem;color:#475569;line-height:1.65;margin:0 0 1rem;max-width:75ch}.article-card__keywords{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1rem}.article-card__keyword{display:inline-block;padding:.28rem .65rem;font-size:.7rem;font-weight:600;color:#475569;background:#f1f5f9;border:1px solid #e2e8f0;border-radius:9999px;text-transform:uppercase;letter-spacing:.06em}.article-card__actions{display:flex;align-items:center;gap:1rem}.article-card__link{font-size:.85rem;font-weight:600;color:var(--color-link);text-decoration:none;letter-spacing:-.005em;transition:color .18s ease}.article-card__link:hover{color:var(--color-link-hover,#002468);text-decoration:underline}.article-card__doi{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.72rem;font-weight:500;color:var(--color-link);background:rgba(0,48,135,.06);border:1px solid rgba(0,48,135,.14);padding:.25rem .55rem;border-radius:6px;text-decoration:none;letter-spacing:-.01em;transition:background .18s ease,border-color .18s ease}.article-card__doi:hover{background:rgba(0,48,135,.1);border-color:rgba(0,48,135,.24)}.articles-empty,.articles-loading{text-align:center;padding:4rem 1rem;color:#64748b;background:#fff;border-radius:14px;border:1px solid #e5e7eb;box-shadow:0 1px 2px rgba(15,23,42,.03)}.articles-loading__spinner{width:40px;height:40px;margin:0 auto 1rem;border:3px solid #e5e7eb;border-top-color:#349c98;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.articles-empty svg{width:56px;height:56px;margin:0 auto 1.1rem;color:#cbd5e1}.articles-empty h3{font-size:1.15rem;font-weight:600;color:#0f172a;margin:0 0 .5rem;letter-spacing:-.01em}.articles-empty p{margin:0 auto;max-width:42ch;line-height:1.55}.articles-pagination{display:flex;align-items:center;justify-content:center;gap:1rem;margin-top:2rem;padding-top:1.5rem;border-top:1px solid #e5e7eb}.articles-pagination__btn{padding:.6rem 1rem;font-size:.85rem;font-weight:500;color:#334155;background:#fff;border:1px solid #e2e8f0;border-radius:10px;cursor:pointer;transition:border-color .18s ease,color .18s ease,box-shadow .18s ease}.articles-pagination__btn:hover:not(:disabled){border-color:#99CBCA;color:var(--color-link);box-shadow:0 0 0 4px rgba(52,156,152,.08)}.articles-pagination__btn:disabled{color:#94a3b8;cursor:not-allowed}.articles-pagination__info{font-size:.85rem;color:#64748b;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-weight:500}@media (max-width:768px){.articles-main__container{grid-template-columns:1fr}.articles-sidebar{flex-direction:row;flex-wrap:wrap}.articles-filter-card{flex:1 1;min-width:150px}.articles-search{flex-direction:column}.articles-hero__title{font-size:2.05rem;letter-spacing:-.025em}}