@keyframes pulse{0%,to{opacity:.5}50%{opacity:.3}}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(360deg)}}.archive-hero{background:var(--secondary-900);padding:var(--space-16) var(--space-6) var(--space-12);position:relative;overflow:hidden}.archive-hero::before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 25% 50%,rgba(37,99,235,.07)0,transparent 50%);pointer-events:none}.archive-hero-container{max-width:var(--container-xl);margin:0 auto;text-align:center;position:relative;z-index:1}.archive-title{font-family:var(--font-heading);font-size:clamp(2.25rem,4.5vw,3.25rem);font-weight:800;color:#fff;margin:0 0 var(--space-4);letter-spacing:-.03em;line-height:1.12}.archive-subtitle{font-size:var(--font-size-lg);color:rgba(255,255,255,.55);max-width:36rem;margin:0 auto var(--space-10);line-height:1.65}.archive-stats{display:flex;justify-content:center;gap:var(--space-12);flex-wrap:wrap}.stat-item{display:flex;flex-direction:column;align-items:center;gap:.375rem}.stat-number{font-family:var(--font-heading);font-size:2.75rem;font-weight:800;color:#fff;line-height:1;letter-spacing:-.02em}.stat-label{font-size:var(--font-size-xs);color:rgba(255,255,255,.5);text-transform:uppercase;letter-spacing:.06em;font-weight:600}.archive-filters{background:var(--bg-primary);border-bottom:1px solid var(--gray-200);padding:var(--space-6) var(--space-6);position:sticky;top:0;z-index:50}.archive-container{max-width:var(--container-xl);margin:0 auto}.archive-search{position:relative;margin-bottom:var(--space-5)}.archive-search svg{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--gray-400);pointer-events:none}.search-input{width:100%;padding:.75rem 1rem .75rem 2.75rem;font-size:var(--font-size-base);border:1px solid var(--gray-200);border-radius:var(--radius-lg);background:var(--bg-primary);transition:all var(--transition-base);color:var(--gray-900)}.search-input:focus{outline:0;border-color:var(--primary-500);box-shadow:var(--focus-ring)}.search-input::placeholder{color:var(--gray-400)}.filter-tabs{display:flex;gap:.375rem;margin-bottom:var(--space-5);overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:.25rem}.filter-tabs::-webkit-scrollbar{height:3px}.filter-tabs::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:2px}.filter-tab{padding:.5rem 1rem;font-size:var(--font-size-sm);font-weight:600;color:var(--gray-500);background:var(--gray-100);border:1px solid transparent;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.filter-tab:hover{background:var(--gray-200);color:var(--gray-700)}.filter-tab.active{background:var(--primary-600);color:#fff;border-color:var(--primary-600)}.archive-controls{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4)}.sort-options{display:flex;align-items:center;gap:.625rem}.sort-options label,.sort-select{font-size:var(--font-size-sm);font-weight:600;color:var(--gray-600)}.sort-select{padding:.5rem .875rem;font-weight:500;color:var(--gray-700);background:var(--bg-primary);border:1px solid var(--gray-200);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.sort-select:hover{border-color:var(--gray-300)}.sort-select:focus{outline:0;border-color:var(--primary-500)}.view-toggle{display:flex;gap:.125rem;background:var(--gray-100);padding:.1875rem;border-radius:var(--radius-md)}.view-btn{padding:.4375rem .625rem;background:0 0;border:0;border-radius:var(--radius-sm);cursor:pointer;color:var(--gray-500);transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center}.view-btn:hover{color:var(--gray-700)}.view-btn.active{background:var(--bg-primary);color:var(--gray-900);box-shadow:var(--shadow-xs)}.archive-content{background:var(--gray-50);padding:var(--space-10) var(--space-6);min-height:80vh}.archive-grid{max-width:var(--container-xl);margin:0 auto;display:grid;grid-template-columns:16rem 1fr;gap:var(--space-10)}.archive-sidebar{top:10rem;height:fit-content}.sidebar-title{font-family:var(--font-heading);font-size:var(--font-size-base);font-weight:700;color:var(--gray-800);margin:0 0 var(--space-4)}.year-list{background:var(--bg-primary);border-radius:var(--radius-lg);border:1px solid var(--gray-200);overflow:hidden;margin-bottom:var(--space-4)}.year-group{border-bottom:1px solid var(--gray-100)}.year-group:last-child{border-bottom:none}.year-header{width:100%;display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem;font-size:var(--font-size-sm);font-weight:700;color:var(--gray-800);background:var(--bg-primary);border:0;cursor:pointer;transition:background var(--transition-fast)}.month-link:hover,.year-header.active,.year-header:hover{background:var(--gray-50)}.year-header svg{transition:transform var(--transition-base)}.year-header.active svg{transform:rotate(180deg)}.month-list{display:flex;flex-direction:column}.month-link{display:flex;justify-content:space-between;align-items:center;padding:.5rem 1rem .5rem 2rem;font-size:var(--font-size-sm);color:var(--gray-600);text-decoration:none;transition:all var(--transition-fast);border-left:2px solid transparent}.month-link:hover{color:var(--primary-600)}.month-link.active{background:rgba(37,99,235,.04);color:var(--primary-700);border-left-color:var(--primary-600);font-weight:600}.article-count{font-size:var(--font-size-xs);font-weight:600;color:var(--gray-400);background:var(--gray-100);padding:.1rem .5rem;border-radius:var(--radius-full)}.month-link.active .article-count,.tag-link.active .tag-count,.tag-link:hover .tag-count{background:rgba(37,99,235,.08);color:var(--primary-600)}.sidebar-stats{background:var(--bg-primary);border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--space-5);margin-bottom:var(--space-4)}.popular-tags-section h4,.sidebar-stats h4{font-size:var(--font-size-xs);font-weight:700;color:var(--gray-500);margin:0 0 var(--space-3);text-transform:uppercase;letter-spacing:.06em}.stat-row{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0;font-size:var(--font-size-sm);color:var(--gray-500);border-bottom:1px solid var(--gray-100)}.stat-row:last-child{border-bottom:none}.stat-row strong{color:var(--gray-800);font-weight:600}.popular-tags-section{background:var(--bg-primary);border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--space-5);margin-bottom:var(--space-4)}.tag-cloud{display:flex;flex-direction:column;gap:.25rem}.tag-link{display:flex;align-items:center;padding:.5rem .625rem;font-size:var(--font-size-sm);color:var(--gray-600);text-decoration:none;background:0 0;border-radius:var(--radius-md);transition:all var(--transition-fast)}.tag-link:hover{background:var(--gray-50);color:var(--primary-600)}.tag-link.active{background:rgba(37,99,235,.06);color:var(--primary-700);font-weight:600}.tag-link::before{content:"#";font-weight:700;color:var(--gray-300);margin-right:.375rem}.tag-link.active::before,.tag-link:hover::before{color:var(--primary-500)}.tag-count{font-size:var(--font-size-xs);font-weight:600;color:var(--gray-400);background:var(--gray-100);padding:.1rem .4rem;border-radius:var(--radius-full);margin-left:auto}.archive-main{min-height:36rem}.archive-section{margin-bottom:var(--space-12)}.section-date{font-family:var(--font-heading);font-size:var(--font-size-2xl);font-weight:800;color:var(--gray-900);margin:0 0 var(--space-6);padding-bottom:var(--space-3);border-bottom:2px solid var(--primary-500)}.article-list{display:flex;flex-direction:column;gap:var(--space-4)}.archive-article{background:var(--bg-primary);border:1px solid var(--gray-200);border-radius:var(--card-radius);padding:var(--space-6);transition:all var(--transition-base)}.archive-article:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--gray-300)}.article-meta{display:flex;align-items:center;gap:.625rem;margin-bottom:.625rem}.article-date{font-size:var(--font-size-sm);font-weight:500;color:var(--gray-400)}.article-category{font-size:var(--font-size-xs);font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:.2rem .5rem;border-radius:var(--radius-sm);margin-left:auto}.article-category--concepts{background:rgba(37,99,235,.06);color:var(--primary-600)}.article-category--explainers{background:rgba(37,99,235,.06);color:#1e40af}.article-category--ideas{background:#fef3c7;color:#b45309}.article-category--technology{background:#e0f2fe;color:#0369a1}.article-category--work-skills{background:#f3e8ff;color:#6b21a8}.article-category--culture{background:#fce7f3;color:#be185d}.article-title{font-family:var(--font-heading);font-size:var(--font-size-xl);font-weight:700;line-height:1.35;margin:0 0 .5rem}.article-title a{color:var(--gray-900);text-decoration:none;transition:color var(--transition-fast)}.article-title a:hover{color:var(--primary-600)}.article-excerpt{font-size:var(--font-size-base);line-height:1.65;color:var(--gray-500);margin:0 0 var(--space-4)}.article-footer{justify-content:flex-end;padding-top:var(--space-4);border-top:1px solid var(--gray-100)}.article-footer,.article-stats,.read-time{display:flex;align-items:center}.article-stats{gap:var(--space-4);font-size:var(--font-size-sm);color:var(--gray-400);width:100%}.read-time{gap:.25rem}.read-time svg{width:.875rem;height:.875rem}.load-more,.read-time,span.views{font-size:var(--font-size-sm)}span.views{margin-left:auto}.load-more{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.75rem var(--space-6);margin-top:var(--space-6);font-weight:600;color:var(--primary-600);background:var(--bg-primary);border:1px solid var(--gray-200);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast)}.expand-month:hover,.load-more:hover{background:rgba(37,99,235,.04);border-color:var(--primary-500)}.load-more svg{transition:transform var(--transition-fast)}.load-more:hover svg{transform:translateY(2px)}.month-placeholder{text-align:center;padding:var(--space-8) var(--space-6);background:var(--gray-50);border:1px dashed var(--gray-300);border-radius:var(--radius-lg);margin-top:var(--space-5)}.month-placeholder p{font-size:var(--font-size-base);color:var(--gray-500);margin:0 0 var(--space-4)}.expand-month{padding:.625rem 1.25rem;font-size:var(--font-size-sm);font-weight:600;color:var(--primary-600);background:var(--bg-primary);border:1px solid var(--gray-200);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.archive-pagination{display:flex;justify-content:center;align-items:center;gap:.5rem;margin-top:var(--space-12)}.pagination-btn{display:flex;align-items:center;gap:.375rem;padding:.625rem 1rem;font-size:var(--font-size-sm);font-weight:600;color:var(--gray-600);background:var(--bg-primary);border:1px solid var(--gray-200);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.pagination-btn:hover:not(:disabled){background:var(--gray-50);border-color:var(--gray-300)}.pagination-btn:disabled{opacity:.35;cursor:not-allowed;pointer-events:none}.page-btn,.pagination-pages{display:flex;align-items:center}.pagination-pages{gap:.25rem}.page-btn{width:2.25rem;height:2.25rem;justify-content:center;font-size:var(--font-size-sm);font-weight:600;color:var(--gray-600);background:var(--bg-primary);border:1px solid var(--gray-200);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.page-btn:hover{background:var(--gray-50);border-color:var(--gray-300)}.page-btn.active{background:var(--primary-600);color:#fff;border-color:var(--primary-600);font-weight:700}.page-btn:not(.active):hover{color:var(--primary-600);border-color:var(--primary-500)}.pagination-dots{color:var(--gray-400);font-weight:600}.archive-newsletter{background:var(--secondary-900);padding:var(--space-16) var(--space-6)}.newsletter-container{max-width:36rem;margin:0 auto}.newsletter-content{text-align:center}.newsletter-content h2{font-family:var(--font-heading);font-size:var(--font-size-4xl);font-weight:800;color:#fff;margin:0 0 var(--space-4);letter-spacing:-.02em}.newsletter-content>p{font-size:var(--font-size-lg);color:rgba(255,255,255,.55);margin:0 0 var(--space-8);line-height:1.65}.newsletter-form{display:flex;gap:.5rem;margin-bottom:var(--space-3)}.newsletter-input{flex:1;padding:.75rem 1rem;font-size:var(--font-size-base);border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-lg);background:rgba(255,255,255,.06);color:#fff;transition:all var(--transition-fast)}.newsletter-input::placeholder{color:rgba(255,255,255,.35)}.newsletter-input:focus{outline:0;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3)}.newsletter-submit{padding:.75rem 1.5rem;font-size:var(--font-size-base);font-weight:700;color:var(--secondary-900);background:#fff;border:0;border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.newsletter-submit:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}.newsletter-privacy{font-size:var(--font-size-xs);color:rgba(255,255,255,.4);margin:0}.newsletter-privacy a{color:rgba(255,255,255,.7);text-decoration:underline}.article-list.view-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(20rem,1fr));gap:var(--space-5)}.article-list.view-grid .archive-article{height:100%;display:flex;flex-direction:column}.article-list.view-grid .article-title{font-size:var(--font-size-lg);margin:var(--space-3)0 .5rem}.article-list.view-grid .article-excerpt{flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;line-clamp:3;overflow:hidden}.article-list.view-list{display:flex;flex-direction:column;gap:var(--space-3)}.no-results{text-align:center;padding:var(--space-16) var(--space-6);max-width:28rem;margin:0 auto}.no-results svg{color:var(--gray-300);margin-bottom:var(--space-5)}.no-results h3{font-family:var(--font-heading);font-size:var(--font-size-xl);font-weight:700;color:var(--gray-900);margin:0 0 .5rem}.no-results p{font-size:var(--font-size-base);color:var(--gray-500);margin:0 0 var(--space-6);line-height:1.6}.reset-filters{display:inline-flex;align-items:center;gap:.375rem;padding:.625rem 1.25rem;background:var(--primary-600);color:#fff;border:0;border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.reset-filters:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:var(--shadow-md)}.search-highlight{background:rgba(255,235,59,.25);padding:.1rem .2rem;border-radius:2px}.archive-article.skeleton{pointer-events:none;opacity:.5;animation:pulse 1.5s ease-in-out infinite}.archive-article.skeleton .article-excerpt,.archive-article.skeleton .article-meta span,.archive-article.skeleton .article-title{background:var(--gray-200);color:transparent;border-radius:var(--radius-sm);user-select:none}.archive-article.fade-in{animation:fadeIn .4s ease-out}.load-more[disabled]{opacity:.5;cursor:not-allowed}.load-more[disabled] svg{animation:spin 1s linear infinite}@media (max-width:1024px){.archive-grid{grid-template-columns:1fr}.archive-sidebar{position:static;order:2;margin-top:var(--space-10)}.archive-main{order:1}}@media (max-width:768px){.archive-hero{padding:var(--space-12) var(--space-5) var(--space-10)}.archive-title{font-size:2.25rem}.archive-subtitle{font-size:var(--font-size-base)}.archive-stats{gap:var(--space-8)}.stat-number{font-size:2rem}.archive-controls{flex-direction:column;align-items:stretch}.sort-options{justify-content:space-between}.archive-article{padding:var(--space-5)}.article-title{font-size:var(--font-size-lg)}.newsletter-form{flex-direction:column}.newsletter-content h2{font-size:var(--font-size-3xl)}}@media (max-width:480px){.archive-hero{padding:var(--space-10) var(--space-4) var(--space-8)}.archive-title{font-size:1.75rem}.archive-subtitle{font-size:var(--font-size-sm)}.filter-tabs{gap:.25rem}.filter-tab{font-size:var(--font-size-xs);padding:.4rem .75rem}.archive-article{padding:var(--space-4)}.article-title{font-size:var(--font-size-base)}.section-date{font-size:var(--font-size-xl)}.page-btn,.pagination-btn{font-size:var(--font-size-xs)}.pagination-btn{padding:.5rem .75rem}.page-btn{width:2rem;height:2rem}}.filter-tab:focus-visible,.month-link:focus-visible,.page-btn:focus-visible,.pagination-btn:focus-visible,.view-btn:focus-visible,.year-header:focus-visible{outline:2px solid var(--primary-500);outline-offset:2px}@media (prefers-reduced-motion:reduce){.archive-article,.filter-tab,.load-more,.page-btn,.reset-filters,.view-btn{transition:none;animation:none}.archive-main{scroll-behavior:auto}}