/* The signal rail and the persona panel (home). */
.sg-rail{position:fixed;z-index:120;inset-inline-end:0;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;align-items:center;gap:14px;
  width:52px;padding:18px 0 20px;border:1px solid rgba(var(--glow),.28);border-inline-end:0;border-radius:18px 0 0 18px;
  background:linear-gradient(180deg,rgba(24,22,19,.92),rgba(13,12,10,.92));backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  color:var(--ink);cursor:pointer;font:inherit;box-shadow:0 0 0 0 rgba(var(--glow),.0),-12px 0 40px rgba(0,0,0,.45);transition:width .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s}
:root[dir=rtl] .sg-rail{border-radius:0 18px 18px 0;border-inline-end:1px solid rgba(var(--glow),.28);border-inline-start:0}
.sg-rail:hover,.sg-rail:focus-visible,.sg.open .sg-rail{width:60px;box-shadow:0 0 34px rgba(var(--glow),.18),-12px 0 40px rgba(0,0,0,.45)}
.sg-bars{display:flex;flex-direction:column;gap:4px;align-items:center}
.sg-bars i{display:block;height:3px;border-radius:2px;background:var(--accent);width:var(--w,14px);opacity:.85;animation:sgb 1.6s ease-in-out infinite;animation-delay:var(--d,0s)}
.sg-bars i:nth-child(odd){background:var(--cite)}
@keyframes sgb{0%,100%{width:6px;opacity:.35}50%{width:26px;opacity:1}}
.sg-l{writing-mode:vertical-rl;transform:rotate(180deg);font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-2);white-space:nowrap}
:lang(fa) .sg-l{letter-spacing:0;text-transform:none;font-size:13px;transform:none}
.sg-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(127,209,156,.6);animation:sgp 2s infinite}
@keyframes sgp{0%{box-shadow:0 0 0 0 rgba(127,209,156,.55)}70%{box-shadow:0 0 0 12px rgba(127,209,156,0)}100%{box-shadow:0 0 0 0 rgba(127,209,156,0)}}
.sg-panel{position:fixed;z-index:119;top:72px;bottom:16px;inset-inline-end:76px;width:min(900px,calc(100vw - 100px));border-radius:28px;
  border:1px solid rgba(var(--glow),.25);background:rgba(14,13,11,.95);backdrop-filter:blur(22px) saturate(1.2);-webkit-backdrop-filter:blur(22px) saturate(1.2);
  box-shadow:0 30px 120px rgba(0,0,0,.6);display:grid;grid-template-rows:auto 1fr;overflow:hidden;
  opacity:0;transform:translateX(40px) scale(.98);pointer-events:none;visibility:hidden;transition:opacity .45s cubic-bezier(.2,.8,.2,1),transform .55s cubic-bezier(.2,.8,.2,1),visibility 0s .55s}
:root[dir=rtl] .sg-panel{transform:translateX(-40px) scale(.98)}
.sg.open .sg-panel{opacity:1;transform:none;pointer-events:auto;visibility:visible;transition:opacity .45s cubic-bezier(.2,.8,.2,1),transform .55s cubic-bezier(.2,.8,.2,1),visibility 0s}
.sg-head{display:flex;align-items:center;justify-content:space-between;gap:var(--s3);padding:var(--s4) var(--s5);border-bottom:1px solid var(--line)}
.sg-head h2{margin:0;padding:0;border:0;font-size:var(--t-m);letter-spacing:-.01em}
.sg-head small{display:block;color:var(--ink-2);font-weight:400;font-size:var(--t-xs);margin-top:2px}
.sg-x{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);font-size:22px;line-height:1;cursor:pointer}
.sg-x:hover{border-color:rgba(var(--glow),.5)}
.sg-body{display:grid;gap:var(--s4);padding:var(--s4) var(--s5) var(--s5);overflow:auto;grid-template-columns:1fr}
@media (min-width:900px){.sg-body{grid-template-columns:1.25fr .75fr;align-items:start}}
.sg-stage{position:relative;border-radius:22px;background:radial-gradient(circle at 50% 45%,rgba(var(--glow),.08),transparent 65%),#0b0a08;border:1px solid var(--line);overflow:hidden}
.sg-orb{display:block;width:100%;height:clamp(300px,52vh,520px);cursor:grab;touch-action:none}
.sg-orb:active{cursor:grabbing}
.sg-hint{position:absolute;inset-inline-start:16px;bottom:12px;font-size:var(--t-xs);color:var(--ink-2);pointer-events:none}
.sg-keys{list-style:none;margin:var(--s3) 0 0;padding:0;display:flex;flex-wrap:wrap;gap:var(--s2);max-width:none}
.sg-keys button{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:7px 14px;font:inherit;font-size:var(--t-xs);font-weight:600;cursor:pointer}
.sg-keys button[aria-pressed=true]{border-color:currentColor}
.sg-keys b{width:9px;height:9px;border-radius:50%;background:var(--c)}
.sg-keys .rej{color:var(--ink-2);text-decoration:line-through}
.sg-side p{margin:0 0 var(--s3);color:var(--ink-2);font-size:var(--t-s)}
.sg-side .vid{margin:0;max-width:300px}
@media (max-width:899px){.sg-side .vid{max-width:260px;margin-inline:auto}}
@media (max-width:640px){
  .sg-rail{top:auto;bottom:96px;transform:none;width:44px;padding:14px 0 16px;gap:10px}
  .sg.open .sg-rail{opacity:0;pointer-events:none}
  .sg-panel{background:rgba(12,11,9,.985)}
  .sg-rail:hover,.sg.open .sg-rail{width:44px}
  .sg-panel{top:8px;bottom:8px;inset-inline-end:8px;width:calc(100vw - 16px);border-radius:24px;z-index:130}
  .sg-body{padding:var(--s3)}
}
@media (prefers-reduced-motion:reduce){.sg-bars i,.sg-dot{animation:none}.sg-panel{transition:none}}