.btn{display:inline-flex;align-items:center;gap:0.5rem;font-family:var(--mono);font-size:0.85rem;font-weight:700;padding:0.5rem 0.9rem;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);color:var(--fg);cursor:pointer;transition:border-color 0.15s,color 0.15s}.btn:hover{border-color:var(--rust);color:var(--rust)}.btn-primary{border-color:var(--rust);color:var(--rust)}.btn-primary:hover{background:var(--rust);color:#14100e}.btn-secondary{color:var(--dim)}.btn-outline{background:none}.btn-large{padding:0.65rem 1.2rem;font-size:0.95rem}.btn-small{padding:0.35rem 0.7rem;font-size:0.78rem}.tag{font-family:var(--mono);font-size:0.75rem;font-weight:700;color:var(--dim);padding:0.05rem 0.4rem;border:1px solid var(--line);border-radius:4px}.tag[data-cat="ai"]{color:var(--ai)}.tag[data-cat="aws"]{color:var(--aws)}.tag[data-cat="dev"]{color:var(--dev)}.tag[data-cat="py"]{color:var(--py)}.tag[data-cat="tf"]{color:var(--tf)}.tag[data-cat="life"]{color:var(--life)}.term-list{display:flex;flex-direction:column;gap:0.15rem}.term-list .row{display:grid;grid-template-columns:3.6rem 1fr auto;gap:0.7rem;align-items:baseline;padding:0.32rem 0.5rem;border-radius:5px}.term-list .row:hover{background:var(--panel)}.term-list .row .r-title{color:var(--fg)}.term-list .row:hover .r-title{color:var(--rust)}.term-list .row .r-date{color:var(--dim);font-size:0.78rem}.prompt-line{margin:0 0 0.6rem;color:var(--dim)}.prompt-line .u{color:var(--rust);font-weight:700}.prompt-line .p{color:var(--dev)}.prompt-line .cmd{color:var(--fg)}main section h1{margin-bottom:1.2rem}.post-link{display:block;margin-top:1.4rem}.post-title{font-size:1.12rem;margin:0;color:var(--fg)}.post-link:hover .post-title{color:var(--rust)}main section>p{color:var(--dim);margin:0.3rem 0 0.2rem;max-width:70ch}.post-date{color:var(--faint);font-size:0.8rem;margin:0.15rem 0 0}.search-container{max-width:720px}.search-box{display:flex;gap:0.5rem;margin:1rem 0}#search-input{flex:1;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);color:var(--fg);font-family:var(--mono);font-size:0.95rem;padding:0.6rem 0.8rem}#search-input:focus{outline:none;border-color:var(--rust)}.search-button{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);color:var(--rust);padding:0 0.9rem;cursor:pointer}.search-button:hover{border-color:var(--rust)}.results-count{color:var(--dim);font-size:0.85rem}.search-results{display:flex;flex-direction:column;gap:0.6rem;margin-top:1rem}.search-results a,.search-result{display:block;padding:0.7rem 0.9rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);color:var(--fg)}.search-results a:hover,.search-result:hover{border-color:var(--rust)}.search-result h3,.search-results h3{margin:0 0 0.25rem;font-size:1rem}.search-result p,.search-results p{margin:0;color:var(--dim);font-size:0.85rem}.table-of-contents{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--rust);border-radius:var(--radius);padding:0.9rem 1.1rem;margin:1.5rem 0;font-size:0.9rem}.table-of-contents h3{margin:0 0 0.5rem;font-size:0.9rem;color:var(--rust)}.table-of-contents ul{list-style:none;padding-left:0.6rem;margin:0.3rem 0}.table-of-contents ul ul{padding-left:1.1rem}.table-of-contents a{color:var(--dim)}.table-of-contents a:hover{color:var(--rust)}.copy-button{font-family:var(--mono);font-size:0.72rem;color:var(--dim);background:var(--panel-2);border:1px solid var(--line);border-radius:4px;padding:0.15rem 0.5rem;cursor:pointer}.copy-button:hover{color:var(--rust);border-color:var(--rust)}.article-navigation-section,.series-progress-section{margin:2.5rem 0 0}.article-navigation-section h3,.series-progress-section h3{color:var(--rust);font-size:1rem}.navigation-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0.8rem}.navigation-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:0.8rem 1rem}.navigation-card:hover{border-color:var(--rust)}.navigation-card h4{margin:0 0 0.3rem;font-size:0.95rem}.navigation-card p{margin:0;color:var(--dim);font-size:0.85rem}.series-progress-card{max-width:1000px;margin:0 auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem 1.2rem}.series-meta{display:flex;gap:1rem;color:var(--dim);font-size:0.85rem}.progress-bar{height:6px;background:var(--panel-2);border-radius:3px;margin:0.7rem 0;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--rust),var(--ai))}.series-actions{display:flex;flex-wrap:wrap;gap:0.7rem;margin-top:0.9rem}.series-nav-buttons{display:flex;gap:0.7rem;flex-wrap:wrap}.series-content,.series-index-content{max-width:var(--maxw)}.series-stats,.series-meta{display:flex;gap:1rem;color:var(--dim);font-size:0.85rem;margin:0.4rem 0 1.2rem}.article-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:0.7rem}.article-card,.series-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:1rem 1.1rem}.article-card:hover,.series-card:hover{border-color:var(--rust)}.article-title,.series-title{margin:0.2rem 0 0.4rem;font-size:1.05rem}.article-summary,.series-description{color:var(--dim);font-size:0.9rem;margin:0 0 0.6rem}.article-footer,.series-footer{display:flex;flex-wrap:wrap;gap:0.8rem;align-items:center;color:var(--faint);font-size:0.8rem}.series-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:0.9rem}.part-number{color:var(--rust);font-size:0.78rem}.empty-state{text-align:center;color:var(--dim);padding:3rem 1rem}.empty-state i{font-size:2rem;color:var(--faint)}