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a:hover{color:var(--ab-ink)}.header-actions{align-items:center;gap:var(--ab-s-4);display:flex}.lang-switch{font-family:var(--ab-font-mono);font-size:var(--ab-size-label);letter-spacing:.06em;border:1px solid var(--ab-line);border-radius:var(--ab-radius-pill);background:var(--ab-card);align-items:center;gap:0;display:inline-flex;overflow:hidden}.lang-switch a{color:var(--ab-ink-3);transition:background var(--ab-dur-1) var(--ab-ease), color var(--ab-dur-1) var(--ab-ease);padding:.42em .72em;text-decoration:none}.lang-switch a:hover{color:var(--ab-ink)}.lang-switch a[aria-current=true]{background:var(--ab-ink);color:var(--ab-paper)}@media (max-width:860px){.nav{display:none}}.lockup{color:var(--ab-ink);align-items:center;gap:.5em;font-size:19px;text-decoration:none;display:inline-flex}.lockup svg{flex:none;width:1.05em;height:1.05em}.lockup span{font-family:var(--ab-font-display);letter-spacing:-.02em;font-weight:900;line-height:1}.dark .lockup{color:var(--ab-dark-ink)}.site-footer{border-top:1px solid var(--ab-line);padding-block:var(--ab-s-8) var(--ab-s-6);background:var(--ab-paper-2)}.footer-grid{gap:var(--ab-s-6);grid-template-columns:repeat(auto-fit,minmax(200px,1fr));display:grid}.footer-grid h4{font-family:var(--ab-font-mono);font-size:var(--ab-size-label);letter-spacing:var(--ab-ls-label);text-transform:uppercase;color:var(--ab-ink-3);margin-bottom:var(--ab-s-3);font-weight:600}.footer-grid ul{margin:0;padding:0;list-style:none}.footer-grid li+li{margin-top:var(--ab-s-2)}.footer-grid a{font-size:var(--ab-size-sm);color:var(--ab-ink-2);text-decoration:none}.footer-grid a:hover{color:var(--ab-ink);text-decoration:underline}.footer-bottom{margin-top:var(--ab-s-7);padding-top:var(--ab-s-5);border-top:1px solid var(--ab-line);gap:var(--ab-s-4);font-size:var(--ab-size-xs);color:var(--ab-ink-3);flex-wrap:wrap;justify-content:space-between;display:flex}.hero{padding-block:clamp(3rem, 1.5rem + 7vw, 6.5rem) var(--ab-section-y)}.hero .display{max-width:17ch}.hero-domains{gap:var(--ab-s-2);margin-top:var(--ab-s-6);flex-wrap:wrap;display:flex}.tick-list{margin:0;padding:0;list-style:none}.tick-list li{font-size:var(--ab-size-sm);color:var(--ab-ink-2);padding-left:1.6em;position:relative}.tick-list li+li{margin-top:var(--ab-s-3)}.tick-list li:before{content:"";border:2px solid var(--ab-accent);width:9px;height:9px;position:absolute;top:.55em;left:0}.dark .tick-list li{color:var(--ab-dark-ink-2)}@media print{.site-header,.lang-switch,.btn{display:none!important}body{background:#fff;font-size:10.5pt}.section{padding-block:1.5rem}}.scope-form{gap:var(--ab-s-3);margin-top:var(--ab-s-5);flex-wrap:wrap;align-items:flex-end;display:flex}.scope-field{flex:320px}.scope-field label{font-size:var(--ab-size-xs);color:var(--ab-ink-2);margin-bottom:var(--ab-s-2);font-weight:600;display:block}.scope-field 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(min-width:900px){.scope-results{grid-template-columns:repeat(3,1fr)}}.rcard{background:var(--ab-card);border:1px solid var(--ab-line);border-left:3px solid var(--ab-line-strong);border-radius:var(--ab-radius-3);padding:var(--ab-s-5);box-shadow:var(--ab-shadow-sm);flex-direction:column;display:flex}.rcard.hit{border-left-color:var(--ab-accent)}.rcard.check{border-left-color:var(--ab-warn)}.rcard.miss{border-left-color:var(--ab-line-strong)}.rcard-head{justify-content:space-between;align-items:baseline;gap:var(--ab-s-3);margin-bottom:var(--ab-s-3);display:flex}.rcard-reg{font-family:var(--ab-font-mono);font-size:var(--ab-size-label);letter-spacing:var(--ab-ls-label);color:var(--ab-ink-3);font-weight:600}.rcard-state{font-size:var(--ab-size-sm);font-weight:700}.rcard.hit .rcard-state{color:var(--ab-accent-text)}.rcard.check .rcard-state{color:var(--ab-warn)}.rcard.miss .rcard-state{color:var(--ab-ink-3)}.rcard-match{font-family:var(--ab-font-mono);font-size:var(--ab-size-xs);color:var(--ab-ink-2);background:var(--ab-paper-2);border-radius:var(--ab-radius-1);margin-bottom:var(--ab-s-3);word-break:break-word;padding:.45em .65em}.rcard-text{font-size:var(--ab-size-sm);color:var(--ab-ink-2);margin-bottom:var(--ab-s-4)}.rcard ul{margin:0 0 var(--ab-s-4)}.rcard-meta{padding-top:var(--ab-s-4);border-top:1px solid var(--ab-line-soft);font-family:var(--ab-font-mono);color:var(--ab-ink-3);margin-top:auto;font-size:11px;line-height:1.5}.ref details{background:var(--ab-card);border:1px solid var(--ab-line);border-radius:var(--ab-radius-2);margin-bottom:var(--ab-s-3)}.ref summary{cursor:pointer;padding:var(--ab-s-4);font-weight:600;font-size:var(--ab-size-sm);list-style:none}.ref summary::-webkit-details-marker{display:none}.ref summary:before{content:"+ ";font-family:var(--ab-font-mono);color:var(--ab-accent)}.ref details[open] summary:before{content:"– "}.ref .rbody{padding:0 var(--ab-s-4) var(--ab-s-4)}.rtab{border-collapse:collapse;width:100%;font-size:var(--ab-size-xs);border:0}.rtab th{text-align:left;font-family:var(--ab-font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ab-ink-3);padding:var(--ab-s-2) var(--ab-s-3);border-bottom:1px solid var(--ab-line);background:0 0;font-size:11px}.rtab td{padding:var(--ab-s-2) var(--ab-s-3);border-top:1px solid var(--ab-line-soft)}.rtab td.c{font-family:var(--ab-font-mono);white-space:nowrap;color:var(--ab-ink)}.rtab tr.ex td{color:var(--ab-warn)}.rtab tr.ex td.c:after{content:" ×"}.faq-group{margin-bottom:var(--ab-s-7)}.faq-group>h3{font-family:var(--ab-font-mono);font-size:var(--ab-size-label);letter-spacing:var(--ab-ls-label);text-transform:uppercase;color:var(--ab-accent-text);padding-bottom:var(--ab-s-3);border-bottom:1px solid var(--ab-line);margin-bottom:var(--ab-s-2);font-weight:600}.faq-group details{border-bottom:1px solid var(--ab-line-soft)}.faq-group 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.d{grid-column:2}}.note{font-size:var(--ab-size-xs);color:var(--ab-ink-3);max-width:78ch;margin-top:var(--ab-s-5)}.nav-toggle{border:1px solid var(--ab-line-strong);border-radius:var(--ab-radius-2);cursor:pointer;width:42px;height:42px;color:var(--ab-ink);background:0 0;justify-content:center;align-items:center;padding:0;display:none}.nav-toggle:hover{border-color:var(--ab-ink)}.burger{width:18px;height:12px;display:block;position:relative}.burger i{width:100%;height:2px;transition:transform var(--ab-dur-2) var(--ab-ease), opacity var(--ab-dur-1) var(--ab-ease);background:currentColor;position:absolute;left:0}.burger i:first-child{top:0}.burger i:nth-child(2){top:5px}.burger i:nth-child(3){top:10px}.burger.is-open i:first-child{transform:translateY(5px)rotate(45deg)}.burger.is-open i:nth-child(2){opacity:0}.burger.is-open i:nth-child(3){transform:translateY(-5px)rotate(-45deg)}.mobile-nav{border-top:1px solid var(--ab-line);background:var(--ab-card);padding-block:var(--ab-s-5) var(--ab-s-6);display:none}.mobile-nav nav{flex-direction:column;display:flex}.mobile-nav nav a{padding:var(--ab-s-4) 0;font-size:var(--ab-size-lead);color:var(--ab-ink);border-bottom:1px solid var(--ab-line-soft);font-weight:600;text-decoration:none}.mobile-nav nav a[aria-current=page]{color:var(--ab-accent-text)}.nav a[aria-current=page]{color:var(--ab-ink);box-shadow:inset 0 -2px 0 var(--ab-accent)}@media (max-width:860px){.nav{display:none}.nav-toggle{display:inline-flex}.header-cta{display:none}.mobile-nav.is-open{display:block}.header-inner{gap:var(--ab-s-3)}}@media (max-width:460px){.lockup{font-size:17px}}.quiz-bar{background:var(--ab-line);border-radius:var(--ab-radius-pill);height:3px;margin-bottom:var(--ab-s-6);overflow:hidden}.quiz-bar span{background:var(--ab-accent);height:100%;transition:width var(--ab-dur-2) var(--ab-ease);display:block}.quiz-q{font-size:var(--ab-size-h2);margin-bottom:var(--ab-s-3)}.quiz-opts{gap:var(--ab-s-3);margin-top:var(--ab-s-5);display:grid}.quiz-opt{justify-content:space-between;align-items:center;gap:var(--ab-s-4);text-align:left;width:100%;font-family:var(--ab-font-body);font-size:var(--ab-size-sm);color:var(--ab-ink);background:var(--ab-card);border:1px solid var(--ab-line);border-left:3px solid var(--ab-line);border-radius:var(--ab-radius-2);padding:var(--ab-s-4) var(--ab-s-5);cursor:pointer;transition:border-color var(--ab-dur-1) var(--ab-ease), background var(--ab-dur-1) var(--ab-ease);font-weight:500;display:flex}.quiz-opt:hover{border-color:var(--ab-line-strong);border-left-color:var(--ab-accent)}.quiz-opt.is-on{border-color:var(--ab-accent-tint);border-left-color:var(--ab-accent);background:var(--ab-accent-soft)}.quiz-opt em{flex:none;font-style:normal}.num-list{margin:var(--ab-s-4) 0 0;padding-left:1.3em}.num-list li{font-size:var(--ab-size-sm);color:var(--ab-ink-2);padding-left:.3em}.num-list li::marker{font-family:var(--ab-font-mono);font-size:var(--ab-size-xs);color:var(--ab-accent-text)}.num-list li+li{margin-top:var(--ab-s-3)}