/* PSLTD shared design v1. Colour and spacing changes start here. */
:root[data-brand="psltd"]{--ps-blue:#658FB9;--ps-bg:#f6f8fa;--ps-surface:#fff;--ps-soft:#edf3f8;--ps-ink:#152331;--ps-muted:#5d7082;--ps-line:#dfe6ed;--ps-strong:#24435f;--ps-control:#fff;--ps-hover:#e4edf5;--ps-warning-bg:#fff5df;--ps-warning:#755f2e;--ps-danger-bg:#fff0f0;--ps-danger:#9f3442;--ps-radius:12px;--ps-button-radius:6px;--ps-font:Arial,Helvetica,sans-serif;color-scheme:light}
:root[data-brand="psltd"][data-theme="dark"]{--ps-bg:#111a23;--ps-surface:#192631;--ps-soft:#213443;--ps-ink:#ecf2f7;--ps-muted:#a6b8c8;--ps-line:#344757;--ps-strong:#b6d1e8;--ps-control:#14212c;--ps-hover:#2b4357;--ps-warning-bg:#382f20;--ps-warning:#e9ce91;--ps-danger-bg:#3a252c;--ps-danger:#ffb6c1;color-scheme:dark}
.psltd-switch{position:relative;display:inline-block;font:12px var(--ps-font,Arial);color:var(--ps-ink)}
.psltd-switch summary{list-style:none;cursor:pointer;border:1px solid var(--ps-line);border-radius:6px;padding:9px 12px;background:var(--ps-surface);white-space:nowrap;font-weight:600}
.psltd-switch summary::-webkit-details-marker{display:none}.psltd-switch summary::after{content:'⌄';margin-left:12px;color:var(--ps-muted)}
.psltd-switch nav{display:flex;flex-direction:column;gap:4px;position:absolute;top:calc(100% + 8px);left:0;min-width:215px;padding:8px;background:var(--ps-surface);border:1px solid var(--ps-line);border-radius:10px;box-shadow:0 12px 30px #06111e26;z-index:100;margin:0}
.psltd-switch nav a{display:block;border:0;border-radius:6px;padding:12px;text-decoration:none;color:var(--ps-ink);font:12px var(--ps-font,Arial)}
.psltd-switch nav a:hover,.psltd-switch nav a[aria-current=page]{background:var(--ps-soft);color:var(--ps-strong)}
.psltd-appearance{display:flex;align-items:center;gap:7px;font:11px var(--ps-font,Arial);color:var(--ps-muted)}
.psltd-appearance select{font:12px var(--ps-font,Arial);color:var(--ps-ink);border:1px solid var(--ps-line);background:var(--ps-surface);border-radius:6px;padding:8px 10px;min-height:36px;width:auto;margin:0}
.psltd-switch summary:focus-visible,.psltd-switch a:focus-visible,.psltd-appearance select:focus-visible{outline:3px solid var(--ps-blue);outline-offset:3px}
.psltd-logo{width:128px;height:auto;display:block}.psltd-logo-dark{display:none}:root[data-brand=psltd][data-theme=dark] .psltd-logo-light{display:none}:root[data-brand=psltd][data-theme=dark] .psltd-logo-dark{display:block}
@media(max-width:600px){.psltd-appearance>span{display:none}.psltd-switch summary{padding:8px}.psltd-switch nav{min-width:190px}}

/* Explicit light/dark preference, stored per browser. */
button.psltd-theme-toggle{position:relative;display:inline-flex;flex:none;align-items:center;justify-content:space-around;width:96px;height:44px;min-height:44px;padding:4px;border:1px solid var(--ps-line);border-radius:999px;background:var(--ps-surface);cursor:pointer;isolation:isolate}
.psltd-theme-toggle .theme-thumb{position:absolute;inset:4px auto 4px 4px;width:42px;border-radius:999px;background:var(--ps-soft);transition:transform .18s ease;z-index:-1}
.psltd-theme-toggle svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
.psltd-theme-toggle .theme-sun{color:var(--ps-strong)}.psltd-theme-toggle .theme-moon{color:var(--ps-muted)}
:root[data-theme=dark] .psltd-theme-toggle{background:var(--ps-surface);border-color:var(--ps-line)}
:root[data-theme=dark] .psltd-theme-toggle .theme-thumb{transform:translateX(44px);background:var(--ps-soft)}
:root[data-theme=dark] .psltd-theme-toggle .theme-sun{color:var(--ps-muted)}:root[data-theme=dark] .psltd-theme-toggle .theme-moon{color:var(--ps-strong)}
.psltd-theme-toggle:focus-visible{outline:3px solid var(--ps-blue);outline-offset:3px}
@media(prefers-reduced-motion:reduce){.psltd-theme-toggle .theme-thumb{transition:none}}