:root{--bg:#fff;--surface:#f3f6fc;--card:#fff;--fg:#152c4b;--muted:#50627c;--line:#dce5f1;--blue:#315ed7;--aqua:#73d8d0;--positive:#116b63;--negative:#b54b54;--soft:#e9effb;color-scheme:light}
html[data-theme=dark]{--bg:#101f36;--surface:#162a42;--card:#162a42;--fg:#f3f6fc;--muted:#afc0d7;--line:#304662;--soft:#213c60;--positive:#73d8d0;--negative:#f5a3aa;color-scheme:dark}
.theme-switch{display:inline-grid;place-items:center;width:38px;height:38px;padding:0;border:0;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer;box-shadow:none}.theme-switch:hover{background:var(--soft);color:var(--fg)}.theme-switch svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.theme-switch:focus-visible{outline:2px solid var(--blue);outline-offset:3px}