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rgba(30,32,64,.1)}.nav{background:var(--nav-bg,rgba(244,247,246,.92))}.footer{background:var(--footer-dark,#122221)}.theme-switcher{position:fixed;bottom:1.5rem;right:1.5rem;z-index:200;display:flex;flex-direction:column;align-items:flex-end;gap:.5rem;font-family:var(--font-sans)}.theme-switcher__toggle{display:flex;align-items:center;gap:.5rem;background:var(--color-text);color:var(--color-bg);border:none;border-radius:2rem;padding:.5rem .9rem .5rem .7rem;font-size:.78rem;font-weight:600;letter-spacing:.04em;cursor:pointer;box-shadow:0 4px 16px -2px rgba(0,0,0,.25);transition:opacity .15s;white-space:nowrap}.theme-switcher__toggle:hover{opacity:.85}.theme-switcher__toggle svg{flex-shrink:0}.theme-switcher__panel{background:#fff;border:1px solid #e0e0e0;border-radius:.875rem;padding:.75rem;box-shadow:0 8px 32px -4px rgba(0,0,0,.18);display:none;flex-direction:column;gap:.35rem;min-width:180px}.theme-switcher__panel.is-open{display:flex}.theme-switcher__option{display:flex;align-items:center;gap:.6rem;padding:.45rem .6rem;border-radius:.5rem;border:none;background:0 0;cursor:pointer;font-size:.82rem;font-weight:500;color:#1a1a1a;text-align:left;transition:background .12s;width:100%}.theme-switcher__option:hover{background:#f4f4f4}.theme-switcher__option.is-active{background:#f0f0f0;font-weight:700}.theme-switcher__swatch{width:1.1rem;height:1.1rem;border-radius:50%;flex-shrink:0;border:2px solid rgba(0,0,0,8%)}@media(max-width:768px){.theme-switcher{bottom:1rem;right:1rem}.theme-switcher__panel{max-height:calc(100dvh - 5rem);overflow-y:auto;-webkit-overflow-scrolling:touch}.text-size-btn{padding:.6rem .3rem;min-height:3rem}}.theme-switcher__divider{height:1px;background:#e8e8e8;margin:.35rem 0}.theme-switcher__section-label{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#999;padding:.25rem .6rem .1rem}.text-size-options{display:flex;gap:.3rem;padding:.25rem .6rem .35rem}.text-size-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:.2rem;padding:.4rem .3rem;border-radius:.375rem;border:1.5px solid #e0e0e0;background:0 0;cursor:pointer;transition:background .12s,border-color .12s;font-family:var(--font-sans)}.text-size-btn:hover{background:#f4f4f4;border-color:silver}.text-size-btn.is-active{background:#f0f0f0;border-color:#aaa;font-weight:700}.text-size-btn__preview{line-height:1;color:#1a1a1a}.text-size-btn[data-size=compact] .text-size-btn__preview{font-size:.75rem}.text-size-btn[data-size=medium] .text-size-btn__preview{font-size:.9rem}.text-size-btn[data-size=large] .text-size-btn__preview{font-size:1.05rem}.text-size-btn__label{font-size:.68rem;color:#666;text-align:center}@media(max-width:768px){html:not([data-text-size]){--font-size-body:1.0625rem;--font-size-prose-sm:0.9563rem}}