:root{color-scheme:light;--background:#ffffff;--text:#17324d;--link:#2457c5;--muted:#465568;--surface:#eaf2fa;--border:#a9bfd8;--border-strong:#95acc6;--line:#c8d7e8;--soft-line:#d8e3ee;--paper-shadow:#cddff1;--deep:#17324d;--on-deep:#ffffff;--action:#2457c5;--on-action:#ffffff;--warning-bg:#fff4c8;--good-bg:#e6ecdd;--good-ink:#2f4526;--bad-bg:#f7e4da;--bad-ink:#6b2a1b}
:root[data-theme="dark"]{color-scheme:dark;--background:#0d1a2a;--text:#e8f0fa;--link:#a8c8ff;--muted:#b9cadd;--surface:#172c43;--border:#526e8d;--border-strong:#718dab;--line:#36526d;--soft-line:#3e5871;--paper-shadow:#07111e;--deep:#07111e;--on-deep:#e8f0fa;--action:#a8c8ff;--on-action:#102239;--warning-bg:#463914;--good-bg:#183c30;--good-ink:#c4ecd0;--bad-bg:#472b28;--bad-ink:#ffd7c8}
/* The system preference still works with JavaScript disabled. */
@media(prefers-color-scheme:dark){:root:not([data-theme]){color-scheme:dark;--background:#0d1a2a;--text:#e8f0fa;--link:#a8c8ff;--muted:#b9cadd;--surface:#172c43;--border:#526e8d;--border-strong:#718dab;--line:#36526d;--soft-line:#3e5871;--paper-shadow:#07111e;--deep:#07111e;--on-deep:#e8f0fa;--action:#a8c8ff;--on-action:#102239;--warning-bg:#463914;--good-bg:#183c30;--good-ink:#c4ecd0;--bad-bg:#472b28;--bad-ink:#ffd7c8}}
.site-top,.site-footer,.safety{background:var(--deep);color:var(--on-deep)}.site-top a,.site-footer a{color:var(--on-deep)}.btn.primary{background:var(--action);border-color:var(--action);color:var(--on-action)}.btn:hover{background:var(--text);border-color:var(--text);color:var(--background)}.sample-label,.session-strip,.session-inner a,.skip-link{color:#17324d}.session-strip{background:#f4ce54}.warning,.badge.warn{background:var(--warning-bg)}.safety a{color:#f4ce54}
.top-inner{align-items:center;gap:20px}.site-tools{position:relative;display:flex;align-items:center;gap:18px}.language-menu{position:static}.language-menu summary{display:flex;align-items:center;gap:7px;min-height:44px;cursor:pointer;list-style:none}.language-menu summary::-webkit-details-marker{display:none}.language-menu summary:after{content:'⌄';font-size:1rem}.language-menu[open] summary{text-decoration:underline;text-underline-offset:4px}.language-options{position:absolute;right:0;top:calc(100% + 7px);width:300px;max-width:calc(100vw - 40px);padding:18px;background:var(--background);color:var(--text);border:1px solid var(--border-strong);border-radius:6px;box-shadow:0 8px 24px #0003;z-index:120}.language-heading{font-weight:700;margin-bottom:8px;font-size:1rem}.language-options ul{list-style:none;margin:0;padding:0}.language-options li a{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:46px;padding:7px 4px;color:var(--link);font-size:1.05rem}.language-options li a span{font-size:.85rem;color:var(--muted)}.language-options .language-note{color:var(--muted);font-size:.85rem;line-height:1.45;margin:13px 0 8px}.language-options .language-help{display:inline-flex;align-items:center;min-height:44px;color:var(--link);font-size:.85rem}.theme-controls{display:flex;align-items:center;gap:2px}.theme-toggle{display:flex;align-items:center;justify-content:center;width:62px;min-height:44px;padding:0;border:0;background:transparent;color:#fff;border-radius:4px}.theme-track{position:relative;display:flex;align-items:center;justify-content:space-between;width:54px;height:28px;padding:5px;border:1px solid #b9cadd;border-radius:18px;background:#36526d}.theme-thumb{position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#f4ce54}.theme-track svg{z-index:1}.theme-sun{color:#17324d}.theme-moon{color:#e8f0fa}:root[data-theme=dark] .theme-thumb{left:29px}:root[data-theme=dark] .theme-sun{color:#e8f0fa}:root[data-theme=dark] .theme-moon{color:#17324d}.theme-auto{min-width:44px;min-height:44px;font-size:.8rem;border:0;border-radius:4px;color:#e8f0fa;background:transparent;padding:5px}.theme-auto[aria-pressed=true]{color:#f4ce54;text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:2px}.site-tools :focus-visible{outline:2px solid #fff;outline-offset:2px;box-shadow:0 0 0 5px #2457c5}.language-options a:focus-visible{outline-color:var(--text);box-shadow:0 0 0 5px #f4ce54}
.translation-reading-notice{margin-top:24px}.translation-reading-notice p{background:var(--surface);border-left:4px solid var(--link);padding:16px}.legacy .try,.legacy .pocket,.legacy .q-card,.legacy .handout,.legacy .panel{background:var(--background);color:var(--text);border-color:var(--border)}.legacy .feedback.good{background:var(--good-bg);color:var(--good-ink)}.legacy .feedback.try-again{background:var(--bad-bg);color:var(--bad-ink)}.legacy .part .rule{color:var(--link)}.legacy .card-label,.legacy .msg .from,.legacy .foot{color:var(--muted)}.legacy .kit-head,.legacy .h-bar{background:var(--surface);color:var(--text)}.legacy .h-bar a{color:var(--link)}:root[data-theme=dark] .brief-out{border-top-color:var(--link)}:root[data-theme=dark] .claim[data-kind=checkable]{border-left-color:#84cfa9}:root[data-theme=dark] .claim[data-kind=invented],:root[data-theme=dark] .claim[data-kind=danger]{border-left-color:#ffb6a0}
@media(max-width:850px){.top-inner{display:grid;grid-template-columns:1fr auto;gap:0 14px}.site-tools{grid-column:1/-1;justify-self:end;gap:18px}.top-inner>span{font-size:.78rem}.top-inner>span:nth-child(2){text-align:right}.language-options{right:0}.site-top .top-inner{padding:7px 0}}
@media print{:root,:root[data-theme],:root:not([data-theme]){color-scheme:light;--background:#fff;--text:#17324d;--link:#2457c5;--muted:#465568;--surface:#eaf2fa;--border:#a9bfd8;--border-strong:#95acc6;--line:#c8d7e8;--soft-line:#d8e3ee;--paper-shadow:#cddff1;--warning-bg:#fff4c8}.site-tools,.translation-reading-notice{display:none!important}}

.dashboard-nav a[aria-current]{background:var(--text);color:var(--background)}

.language-options li a{direction:ltr}.language-native{font-weight:400;unicode-bidi:isolate}.language-options li a>span{margin-left:auto;text-align:right}