:root{color-scheme:light dark;--bg: #f6f7f9;--surface: #ffffff;--text: #1a1d26;--muted: #5c6478;--accent: #0d6e6e;--accent-hover: #0a5555;--border: #e2e5ec;--focus: #2563eb;--max: 40rem;--header-max: 72rem;--space: 1rem;--radius: 10px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;line-height:1.6;font-size:1.0625rem}@media(prefers-color-scheme:dark){:root{--bg: #111318;--surface: #1a1d24;--text: #eef0f4;--muted: #a8b0c0;--accent: #5eead4;--accent-hover: #7ff5e1;--border: #2a2f3a}}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:.2em}a:hover{color:var(--accent-hover)}a:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.skip-link{position:absolute;left:-9999px;top:.75rem;z-index:100;padding:.5rem 1rem;background:var(--surface);color:var(--text);border-radius:var(--radius);border:1px solid var(--border)}.skip-link:focus{left:.75rem}.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.site-header__inner{max-width:var(--header-max);margin:0 auto;padding:.75rem var(--space);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem 1.25rem}.site-brand{font-weight:700;font-size:1.05rem;color:var(--text);text-decoration:none}.site-brand:hover{color:var(--accent)}.site-nav{display:flex;flex-wrap:wrap;gap:.35rem 1rem;list-style:none;margin:0;padding:0}.site-nav a{display:inline-block;padding:.45rem .15rem;min-height:44px;min-width:44px;line-height:1.2;align-content:center;color:var(--muted);text-decoration:none;font-weight:500}.site-nav a:hover{color:var(--accent)}.site-nav a[aria-current=page]{color:var(--text);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:.25em}main{max-width:var(--header-max);margin:0 auto;padding:clamp(1.25rem,4vw,2.5rem) var(--space) 3rem}.content-narrow{max-width:var(--max)}.hero{margin-bottom:2rem}.hero h1{font-size:clamp(1.65rem,4vw,2.25rem);line-height:1.2;margin:0 0 .5rem;font-weight:700}.page-title{font-size:clamp(1.5rem,3.5vw,2rem);line-height:1.2;margin:0 0 .5rem;font-weight:700}.lead{font-size:1.125rem;color:var(--muted);margin:0 0 1.25rem;max-width:42rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:.55rem 1.15rem;border-radius:var(--radius);font-weight:600;font-size:1rem;text-decoration:none;background:var(--accent);color:var(--bg);border:none;cursor:pointer}@media(prefers-color-scheme:dark){.btn{color:#0f172a}}.btn:hover{filter:brightness(1.08);color:inherit}.btn--ghost{background:transparent;color:var(--accent);border:1px solid var(--border)}.btn--ghost:hover{background:color-mix(in srgb,var(--accent) 12%,transparent)}.btn-row{display:flex;flex-wrap:wrap;gap:.5rem .75rem;align-items:center}.section{margin-top:2rem}.section h2{font-size:1.15rem;margin:0 0 .75rem;font-weight:650}.card-grid{display:grid;gap:1rem;grid-template-columns:1fr}@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.1rem;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 4px 12px color-mix(in srgb,var(--bg) 80%,black)}.card h3{margin:0 0 .35rem;font-size:1rem;font-weight:650}.card p{margin:0;font-size:.98rem;color:var(--muted)}.list-plain{margin:0;padding-left:1.2rem;color:var(--muted)}.list-plain li{margin-bottom:.35rem}.site-footer{max-width:var(--header-max);margin:0 auto;padding:1.5rem var(--space) 2rem;border-top:1px solid var(--border);color:var(--muted);font-size:.9rem}.post-list{list-style:none;margin:0;padding:0}.post-list li{border-bottom:1px solid var(--border);padding:1rem 0}.post-list a{font-weight:600;text-decoration:none;color:var(--text)}.post-list a:hover{color:var(--accent)}.post-meta{font-size:.9rem;color:var(--muted);margin:.25rem 0 0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.blog-filters{display:flex;flex-direction:column;gap:1rem}.blog-filters__row{display:flex;flex-wrap:wrap;align-items:flex-start;gap:.5rem .75rem}.blog-filters__label{flex:0 0 auto;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);min-width:6.5rem;padding-top:.35rem}.blog-filters__buttons{display:flex;flex-wrap:wrap;gap:.35rem}.blog-filter-btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:.35rem .75rem;border-radius:var(--radius);font:inherit;font-size:.9rem;font-weight:500;color:var(--text);background:var(--surface);border:1px solid var(--border);cursor:pointer}.blog-filter-btn:hover{border-color:var(--accent);color:var(--accent)}.blog-filter-btn.is-active{border-color:var(--accent);color:var(--accent);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:.2em}.blog-filter-btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.tag-cloud-wrap{display:flex;flex-wrap:wrap;align-items:flex-start;gap:.5rem .75rem}.tag-cloud{display:flex;flex-wrap:wrap;gap:.35rem .65rem;align-items:baseline;flex:1;min-width:0}.tag-cloud__btn{display:inline-flex;align-items:baseline;gap:.2rem;min-height:44px;padding:.25rem .4rem;margin:0;font-family:inherit;font-size:calc(.8rem + var(--tag-weight, .5) * .35rem);font-weight:500;line-height:1.3;color:var(--muted);background:none;border:none;cursor:pointer}.tag-cloud__btn:hover,.tag-cloud__btn.is-active{color:var(--accent)}.tag-cloud__btn.is-active{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:.15em}.tag-cloud__count{font-size:.75em;opacity:.85;font-weight:500}.post-chips{display:flex;flex-wrap:wrap;gap:.35rem .5rem;margin:.5rem 0 0;align-items:center}.post-chips--inline{margin-top:.35rem}.post-chip{font-size:.8rem;padding:.2rem .55rem;border-radius:999px;border:1px solid var(--border);color:var(--muted)}.post-chip--category{font-weight:600;color:var(--text)}.blog-list-empty{color:var(--muted);font-size:.95rem;margin:0 0 1rem}.prose{max-width:var(--max)}.prose :where(h1,h2,h3){line-height:1.25;font-weight:650}.prose .post-chips{margin:0 0 1rem}.prose h1{font-size:1.75rem;margin:0 0 .75rem}.prose h2{font-size:1.25rem;margin:2rem 0 .5rem}.prose p,.prose ul,.prose ol{margin:0 0 1rem}.prose ul,.prose ol{padding-left:1.25rem}.prose a{word-break:break-word}.prose pre{overflow-x:auto;padding:1rem;border-radius:var(--radius);background:color-mix(in srgb,var(--text) 6%,var(--surface));border:1px solid var(--border);font-size:.9rem}.prose code{font-size:.9em;padding:.1em .35em;border-radius:4px;background:color-mix(in srgb,var(--text) 8%,var(--surface))}.prose :where(.table-wrap){margin:0 0 1.25rem;overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);box-shadow:0 1px 3px color-mix(in srgb,var(--text) 8%,transparent)}.prose :where(.table-wrap table){margin:0;border:none;border-radius:0;box-shadow:none}.prose :where(table){width:100%;border-collapse:collapse;margin:0 0 1.25rem;font-size:.95rem;line-height:1.45;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface);box-shadow:0 1px 3px color-mix(in srgb,var(--text) 8%,transparent)}.prose :where(thead){background:color-mix(in srgb,var(--accent) 14%,var(--surface))}.prose :where(thead th){border-bottom:2px solid color-mix(in srgb,var(--accent) 35%,var(--border))}.prose :where(th),.prose :where(td){padding:.65rem .9rem;border:1px solid var(--border);text-align:left;vertical-align:top}.prose :where(th){font-weight:650;color:var(--text)}.prose :where(tbody tr:nth-child(2n)){background:color-mix(in srgb,var(--text) 4%,var(--surface))}.prose :where(tbody tr:hover){background:color-mix(in srgb,var(--accent) 10%,var(--surface))}@media(max-width:28rem){.prose :where(table){font-size:.85rem}.prose :where(th),.prose :where(td){padding:.5rem .6rem}}.contact-list{list-style:none;margin:0;padding:0}.contact-list li{margin-bottom:.75rem}.contact-list a{font-weight:600}.muted-note{color:var(--muted);font-size:.95rem}.contact-form__title{font-size:1.15rem;margin:0 0 .5rem;font-weight:650}.contact-form__privacy{margin:0 0 1rem;max-width:42rem}.contact-form{display:flex;flex-direction:column;gap:1rem;max-width:var(--max);padding:1.1rem 1.2rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.contact-form__field{display:flex;flex-direction:column;gap:.35rem}.contact-form__label{font-weight:600;font-size:.95rem}.contact-form__input{min-height:44px;padding:.5rem .65rem;font:inherit;font-size:1rem;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);width:100%;box-sizing:border-box}.contact-form__input:focus{outline:2px solid var(--accent);outline-offset:2px}.contact-form__textarea{min-height:8rem;resize:vertical}.contact-form__turnstile{min-height:4rem}.contact-form__actions{margin-top:.25rem}.contact-form__status{margin:.75rem 0 0;font-size:.95rem;min-height:1.25em}.contact-form__status--error{color:#b91c1c}@media(prefers-color-scheme:dark){.contact-form__status--error{color:#fca5a5}}.cert-card{display:flex;flex-direction:column;gap:.75rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 1.2rem;max-width:var(--max);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.cert-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 4px 12px color-mix(in srgb,var(--bg) 80%,black)}@media(min-width:560px){.cert-card{flex-direction:row;align-items:flex-start;gap:1rem;max-width:48rem}}.cert-card__logo{flex-shrink:0;width:3rem;height:3rem;border-radius:8px;background:#e60012;color:#fff;font-weight:800;font-size:1.35rem;line-height:1;display:flex;align-items:center;justify-content:center;font-family:"Source Sans 3",system-ui,sans-serif;letter-spacing:-.04em}.cert-card__body{flex:1;min-width:0}.cert-card__title{margin:0 0 .25rem;font-size:1.05rem;font-weight:650;line-height:1.3}.cert-card__issuer{margin:0 0 .5rem;font-size:.95rem;color:var(--muted)}.cert-card__meta{margin:0;font-size:.9rem;color:var(--muted)}.cert-card__id{margin:.35rem 0 0;font-size:.85rem;color:var(--muted);word-break:break-all}.cert-card__id code{font-size:.9em;padding:.1em .35em;border-radius:4px;background:color-mix(in srgb,var(--text) 8%,var(--surface))}.cert-skills{display:flex;flex-wrap:wrap;gap:.35rem .5rem;margin:.65rem 0 0;padding:0;list-style:none}.cert-skills li{font-size:.8rem;padding:.2rem .55rem;border-radius:999px;border:1px solid var(--border);color:var(--muted)}.cert-card__actions{margin-top:.75rem;display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}