:root{--ground:#fff;--surface:#f6f8fb;--ink:#1f2937;--ink-strong:#111827;--ink-soft:#4b5563;--ink-faint:#6b7280;--line:#e2e8f0;--accent:#1f6feb;--accent-dark:#1a5fd0;--accent-soft:#eaf1fe;--radius:10px;--measure:68ch;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--ground:#0f141a;--surface:#161d26;--ink:#e5e9ef;--ink-strong:#f3f5f8;--ink-soft:#a9b3c0;--ink-faint:#808b99;--line:#26303c;--accent:#6ea8ff;--accent-dark:#8dbcff;--accent-soft:#16233a}}:root[data-theme=dark]{--ground:#0f141a;--surface:#161d26;--ink:#e5e9ef;--ink-strong:#f3f5f8;--ink-soft:#a9b3c0;--ink-faint:#808b99;--line:#26303c;--accent:#6ea8ff;--accent-dark:#8dbcff;--accent-soft:#16233a}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-underline-offset:2px}a:hover{color:var(--accent-dark)}a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}img{max-width:100%;height:auto}h1,h2,h3{color:var(--ink-strong);line-height:1.22;letter-spacing:-.015em;text-wrap:balance}h1{font-size:clamp(28px,4.5vw,40px);margin:0 0 12px}h2{font-size:clamp(22px,3vw,27px);margin:40px 0 12px}h3{font-size:19px;margin:28px 0 8px}ol,p,ul{margin:0 0 16px}ol,ul{padding-left:22px}li{margin-bottom:6px}.wrap{max-width:1000px;margin:0 auto;padding:0 20px}.measure{max-width:var(--measure)}.site-header{border-bottom:1px solid var(--line);background:var(--ground);position:-webkit-sticky;position:sticky;top:0;z-index:10}.site-header__inner{position:relative;display:flex;align-items:center;gap:24px;padding:14px 20px;max-width:1000px;margin:0 auto}.site-header__logo{font-weight:700;color:var(--ink-strong);text-decoration:none;font-size:16px;white-space:nowrap}.site-header__logo span{color:var(--accent)}.site-header__nav{display:flex;gap:18px;margin-left:auto;flex-wrap:wrap;font-size:15px}.site-header__theme{margin-left:4px}.site-header__nav a{color:var(--ink-soft);text-decoration:none}.site-header__nav a:hover{color:var(--accent)}.rubric-bar{border-bottom:1px solid var(--line);background:var(--surface)}.rubric-bar__inner{display:flex;gap:6px;overflow-x:auto;padding:8px 20px;max-width:1000px;margin:0 auto}.rubric-bar a{white-space:nowrap;font-size:14px;text-decoration:none;color:var(--ink-soft);padding:5px 11px;border-radius:100px}.rubric-bar a:hover{background:var(--accent-soft);color:var(--accent)}.rubric-bar a[aria-current=page]{background:var(--accent);color:#fff}.site-footer{border-top:1px solid var(--line);margin-top:72px;padding:32px 0 48px;color:var(--ink-faint);font-size:14px}.lede,.site-footer a{color:var(--ink-soft)}.lede{font-size:19px;max-width:var(--measure)}.breadcrumbs{font-size:14px;color:var(--ink-faint);margin:24px 0 16px}.breadcrumbs a{color:var(--ink-faint);text-decoration:none}.breadcrumbs a:hover{color:var(--accent)}.breadcrumbs span{margin:0 6px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:16px;gap:16px}.card{border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;background:var(--ground);display:flex;flex-direction:column;gap:8px}.card h3{margin:0;font-size:17px}.card h3 a{color:var(--ink-strong);text-decoration:none}.card h3 a:hover{color:var(--accent)}.card p{margin:0;font-size:15px;color:var(--ink-soft)}.card__meta{font-size:13px;color:var(--ink-faint);margin-top:auto;padding-top:6px}.kicker{display:inline-block;font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--accent);text-decoration:none;font-weight:600}.empty{border:1px dashed var(--line);padding:28px 22px;color:var(--ink-faint);font-size:15px;background:var(--surface)}.cta,.empty{border-radius:var(--radius)}.cta{margin:40px 0 0;padding:22px 24px;background:var(--accent-soft);border-left:3px solid var(--accent);max-width:var(--measure)}.cta p{margin:0 0 12px;color:var(--ink)}.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:10px 18px;border-radius:8px;font-weight:600;font-size:15px}.btn:hover{background:var(--accent-dark);color:#fff}.article__meta{font-size:14px;color:var(--ink-faint);display:flex;flex-wrap:wrap;gap:6px 16px;margin-bottom:24px}.article__body{max-width:var(--measure)}.article__body h2,.article__body h3{scroll-margin-top:80px}.article__body img{border-radius:var(--radius);border:1px solid var(--line)}.article__body blockquote{margin:24px 0;padding:4px 0 4px 18px;border-left:3px solid var(--accent);color:var(--ink-soft)}.article__body code{font-family:var(--mono);font-size:.9em;background:var(--surface);padding:1px 5px;border-radius:4px}.article__body pre{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;overflow-x:auto}.article__body pre code{background:none;padding:0}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);margin:22px 0}.table-scroll table{width:100%;border-collapse:collapse;font-size:15px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.table-scroll td,.table-scroll th{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}.table-scroll thead th{background:var(--surface);font-size:13px;color:var(--ink-soft)}.table-scroll tbody tr:last-child td{border-bottom:none}.toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;margin:0 0 28px;max-width:var(--measure)}.toc strong{display:block;font-size:14px;margin-bottom:8px;color:var(--ink-soft)}.toc ol{margin:0;padding-left:20px;font-size:15px}.toc li{margin-bottom:4px}.toc a{text-decoration:none}.toc a:hover{text-decoration:underline}.faq{max-width:var(--measure);margin-top:44px}.faq details{border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;margin-bottom:8px;background:var(--ground)}.faq summary{cursor:pointer;font-weight:600;color:var(--ink-strong)}.faq details p{margin:10px 0 0;color:var(--ink-soft)}.author-card{display:flex;gap:14px;align-items:flex-start;margin-top:44px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);max-width:var(--measure)}.author-card__name{font-weight:600;color:var(--ink-strong)}.author-card__role{font-size:14px;color:var(--ink-faint)}.author-card p{margin:8px 0 0}.author-card p,.sources{font-size:14px;color:var(--ink-soft)}.sources{max-width:var(--measure)}.sources,.tags{margin-top:32px}.tags{display:flex;flex-wrap:wrap;gap:8px}.tags a{font-size:13px;text-decoration:none;color:var(--ink-soft);border:1px solid var(--line);border-radius:100px;padding:4px 12px}.tags a:hover{border-color:var(--accent);color:var(--accent)}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.theme-toggle{display:inline-flex;border:1px solid var(--line);border-radius:100px;padding:2px;gap:2px;background:var(--ground)}.theme-toggle button{border:0;background:none;color:var(--ink-faint);font:inherit;font-size:13px;line-height:1;padding:6px 10px;border-radius:100px;cursor:pointer}.theme-toggle button:hover{color:var(--accent)}.theme-toggle button[aria-pressed=true]{background:var(--accent);color:#fff}.theme-toggle button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.burger{display:none;margin-left:auto;border:1px solid var(--line);background:var(--ground);color:var(--ink);border-radius:8px;width:40px;height:40px;cursor:pointer;align-items:center;justify-content:center;padding:0}.burger:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.burger span{display:block;position:relative}.burger span,.burger span:after,.burger span:before{width:18px;height:2px;background:currentColor;border-radius:2px}.burger span:after,.burger span:before{content:"";position:absolute;left:0}.burger span:before{top:-6px}.burger span:after{top:6px}.burger[aria-expanded=true] span{background:transparent}.burger[aria-expanded=true] span:before{top:0;transform:rotate(45deg)}.burger[aria-expanded=true] span:after{top:0;transform:rotate(-45deg)}.mobile-panel{display:none;position:absolute;top:100%;left:0;right:0;z-index:20;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--ground);padding:8px 20px 16px;box-shadow:0 12px 24px -18px rgba(0,0,0,.5)}.mobile-panel[data-open=true]{display:block}.mobile-panel a{display:block;padding:10px 0;color:var(--ink);text-decoration:none;font-size:16px;border-bottom:1px solid var(--line)}.mobile-panel a:last-of-type{border-bottom:0}.mobile-panel__theme{margin-top:16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.mobile-panel__theme span{font-size:14px;color:var(--ink-faint)}.mobile-panel .theme-toggle{flex:1 1}.mobile-panel .theme-toggle button{flex:1 1;padding:8px 6px}@media (max-width:760px){.site-header__nav,.site-header__theme{display:none}.burger{display:inline-flex}}.rubric-intro{margin-top:20px}.rubric-intro>:last-child{margin-bottom:0}.ring-links{margin-top:20px;font-size:15px;color:var(--ink-faint);line-height:1.7}.cookie-notice{position:fixed;left:12px;right:12px;bottom:12px;z-index:50;max-width:760px;margin:0 auto;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 28px rgba(0,0,0,.18);display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center}.cookie-notice__text{margin:0;flex:1 1 320px;font-size:14px;line-height:1.55}.cookie-notice__buttons{display:flex;gap:8px;flex-wrap:wrap}.cookie-notice__btn{font:inherit;font-size:14px;font-weight:600;cursor:pointer;padding:9px 16px;border-radius:999px;border:1px solid transparent;background:var(--accent);color:#fff}.cookie-notice__btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}.cookie-notice__btn:hover{opacity:.9}.consent-box{border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;background:var(--surface)}.consent-box__buttons{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 0}.consent-box__note{font-size:14px;color:var(--ink-faint);margin:12px 0 0}@media (max-width:560px){.cookie-notice{left:8px;right:8px;bottom:8px;padding:12px 14px;gap:10px 12px}.cookie-notice__text{flex:1 1 100%;font-size:13px;line-height:1.5}.cookie-notice__buttons{width:100%;gap:8px}.cookie-notice__btn{flex:1 1 auto;padding:8px 12px;font-size:13px}}.article__cover{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:var(--radius);background:var(--surface);margin:20px 0 4px}.card__cover{display:block;margin-bottom:4px}.card__cover img{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:calc(var(--radius) - 3px);background:var(--surface)}.sources details>summary{cursor:pointer;list-style:none;display:flex;align-items:baseline;gap:10px}.sources details>summary::-webkit-details-marker{display:none}.sources details>summary h2{display:inline;margin:0}.sources details>summary:after{content:"▾";color:var(--ink-faint);font-size:14px;transition:transform .15s ease}.sources details[open]>summary:after{transform:rotate(180deg)}.sources__count{font-size:13px;color:var(--ink-faint);border:1px solid var(--line);border-radius:999px;padding:1px 8px}.sources details>ul{margin-top:12px}.search-open{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:1px solid var(--line);border-radius:8px;background:var(--ground);color:var(--ink-soft);cursor:pointer}.search-open:hover{color:var(--accent);border-color:var(--accent)}.search-open:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.search-overlay{position:fixed;inset:0;z-index:100;background:rgba(15,20,26,.45);display:flex;justify-content:center;align-items:flex-start;padding:10vh 16px 16px}.search-box{width:100%;max-width:640px;max-height:78vh;display:flex;flex-direction:column;background:var(--ground);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 24px 60px -30px rgba(0,0,0,.7);overflow:hidden}.search-box__field{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);color:var(--ink-faint)}.search-box__field input{flex:1 1;min-width:0;border:0;background:transparent;color:var(--ink-strong);font:inherit;font-size:16px;padding:4px 0;-moz-appearance:none;appearance:none;-webkit-appearance:none}.search-box__field input:focus{outline:none}.search-box__field input::-webkit-search-cancel-button{display:none}.search-box__close{border:1px solid var(--line);border-radius:8px;background:var(--ground);color:var(--ink-soft);font:inherit;font-size:14px;padding:6px 10px;cursor:pointer;white-space:nowrap}.search-box__close:hover{color:var(--accent);border-color:var(--accent)}.search-box__note{margin:0;padding:14px;font-size:14px;color:var(--ink-faint)}.search-box__list{margin:0;padding:0;list-style:none;overflow-y:auto;-webkit-overflow-scrolling:touch}.search-box__list li+li{border-top:1px solid var(--line)}.search-box__list a{display:block;padding:12px 14px;text-decoration:none;color:var(--ink)}.search-box__list li[data-active=true] a{background:var(--accent-soft)}.search-box__title{display:block;color:var(--ink-strong);font-weight:600;font-size:15px;line-height:1.4}.search-box__desc{display:block;margin-top:3px;font-size:13px;line-height:1.5;color:var(--ink-soft)}.search-box__rubric{display:inline-block;margin-top:6px;font-size:12px;color:var(--ink-faint);border:1px solid var(--line);border-radius:999px;padding:0 8px}.search-box mark{background:transparent;color:var(--accent);font-weight:700}@media (max-width:760px){.search-open{margin-left:auto}.burger{margin-left:8px}}@media (max-width:560px){.search-overlay{padding:0}.search-box{max-width:none;max-height:none;height:100%;border:0;border-radius:0}}