:root{--vf-bg:#ffffff;--vf-surface:#f6f7f9;--vf-border:#d9dde3;--vf-text:#12161c;--vf-muted:#5c6675;--vf-accent:#2d6cdf;--vf-accent-text:#ffffff;--vf-danger:#c0392b;--vf-success:#2e7d32;--vf-radius:10px;--vf-gap:12px;--vf-shell-max:860px;--vf-shell-max-wide:100%;--vf-pad:32px}@media (max-width:380px){:root{--vf-pad:14px}}@media (min-width:381px) and (max-width:640px){:root{--vf-pad:18px}}@media (min-width:641px) and (max-width:1024px){:root{--vf-pad:24px}}@media (min-width:1600px){:root{--vf-shell-max:1040px}}@media (min-width:1720px){:root{--vf-shell-max-wide:1600px}}*{box-sizing:border-box}html{text-size-adjust:100%}@media (prefers-color-scheme:dark){:root{--vf-bg:#0f1420;--vf-surface:#1a2130;--vf-border:#2a3446;--vf-text:#e6e9ef;--vf-muted:#9aa4b6;--vf-accent:#4b86e8;--vf-success:#4caf7d}}body{margin:0;background:var(--vf-bg);color:var(--vf-text);font:15px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}.vf-rtl{direction:rtl;text-align:right;unicode-bidi:plaintext}.vf-card{background:var(--vf-surface);border:1px solid var(--vf-border);border-radius:var(--vf-radius);padding:16px}.vf-btn{border:1px solid transparent;border-radius:var(--vf-radius);background:var(--vf-accent);color:var(--vf-accent-text);padding:10px 18px;font:inherit;font-weight:600;cursor:pointer}.vf-btn:disabled{opacity:.5;cursor:default}.vf-btn--quiet{background:transparent;color:var(--vf-text);border-color:var(--vf-border)}.vf-btn--danger{background:var(--vf-danger)}.vf-btn--active{background:var(--vf-accent);color:var(--vf-accent-text);border-color:var(--vf-accent)}.vf-field{display:block;margin-bottom:var(--vf-gap)}.vf-field__label{display:block;font-size:12px;color:var(--vf-muted);margin-bottom:4px}.vf-field__input,.vf-select{width:100%;box-sizing:border-box;background:var(--vf-bg);color:var(--vf-text);border:1px solid var(--vf-border);border-radius:var(--vf-radius);padding:9px 11px;font:inherit}.vf-settings__group{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--vf-muted);margin:22px 0 10px;padding-bottom:6px;border-bottom:1px solid var(--vf-border)}.vf-settings__group:first-child{margin-top:0}.vf-settings__actions{display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:16px;border-top:1px solid var(--vf-border)}.vf-toggle{display:flex;gap:10px;align-items:flex-start;margin-bottom:var(--vf-gap);cursor:pointer;padding:4px 0}.vf-toggle>input[type=checkbox]{width:18px;height:18px;margin-top:2px;flex:none;cursor:pointer}.vf-toggle>span{display:block}.vf-toggle strong{display:block;font-weight:600}.vf-toggle .vf-field__label{margin:2px 0 0}.vf-muted{color:var(--vf-muted)}.vf-notice{border:1px solid var(--vf-border);-webkit-border-start:3px solid var(--vf-accent);border-inline-start:3px solid var(--vf-accent);border-radius:var(--vf-radius);padding:12px 14px;background:var(--vf-surface)}.vf-notice--danger{border-inline-start-color:var(--vf-danger)}.vf-shell{max-width:var(--vf-shell-max);margin-inline:auto;padding:var(--vf-pad);width:100%}.vf-shell--wide{max-width:var(--vf-shell-max-wide)}.vf-shell:has(.vf-wide){max-width:var(--vf-shell-max-wide)}.vf-shell--wide .vf-scroll-x{overflow-x:auto;max-width:100%}h1{font-size:clamp(1.35rem,1rem + 2vw,2rem);line-height:1.2}h2{font-size:clamp(1.1rem,.9rem + 1.2vw,1.4rem);line-height:1.25}.vf-scroll-x,pre{overflow-x:auto;max-width:100%}img,svg,video{max-width:100%;height:auto}.vf-row{flex-wrap:wrap}.vf-row,.vf-update-banner{display:flex;gap:var(--vf-gap);align-items:center}.vf-update-banner{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);max-width:calc(100% - 24px);padding:10px 14px;background:var(--vf-text);color:var(--vf-bg);border-radius:var(--vf-radius);box-shadow:0 6px 24px rgba(0,0,0,.22);z-index:1000;font-size:.9rem}.vf-update-banner .vf-btn{white-space:nowrap}@media (prefers-reduced-motion:no-preference){.vf-update-banner{animation:vf-banner-in .26s cubic-bezier(.25,1,.5,1) both}@keyframes vf-banner-in{0%{opacity:0;transform:translateX(-50%) translateY(12px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}}