.ss3d{--ss3d-accent:#e30613;--ss3d-bg:#0d0d0f;--ss3d-panel:#16161a;--ss3d-text:#f2f2f2;--ss3d-muted:#9a9aa3;--ss3d-border:#2a2a31;--ss3d-height:620px;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:0;background:var(--ss3d-bg);color:var(--ss3d-text);border-radius:14px;overflow:hidden;font-family:inherit;line-height:1.4;box-sizing:border-box}
.ss3d *{box-sizing:border-box}
.ss3d-stage{position:relative;min-height:var(--ss3d-height);background:radial-gradient(ellipse at 50% 40%,#2a2a30 0%,var(--ss3d-bg) 70%)}
.ss3d-canvas{position:absolute;inset:0}
.ss3d-canvas canvas{display:block;width:100%!important;height:100%!important;touch-action:none;cursor:grab}
.ss3d-canvas canvas:active{cursor:grabbing}
.ss3d-loading{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:rgba(13,13,15,.55);transition:opacity .3s;z-index:2}
.ss3d-loading.is-hidden{opacity:0;pointer-events:none}
.ss3d-spinner{width:38px;height:38px;border:3px solid rgba(255,255,255,.15);border-top-color:var(--ss3d-accent);border-radius:50%;animation:ss3d-spin .8s linear infinite}
@keyframes ss3d-spin{to{transform:rotate(360deg)}}
.ss3d-loading-text{font-size:14px;color:var(--ss3d-muted)}
.ss3d-hint{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);font-size:12px;color:var(--ss3d-muted);background:rgba(0,0,0,.35);padding:5px 12px;border-radius:20px;transition:opacity .4s;pointer-events:none;white-space:nowrap}
.ss3d-hint.is-hidden{opacity:0}
.ss3d-panel{background:var(--ss3d-panel);border-left:1px solid var(--ss3d-border);padding:24px 22px;display:flex;flex-direction:column;gap:24px;overflow:auto;max-height:var(--ss3d-height)}
.ss3d-title{font-size:20px;font-weight:700}
.ss3d-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--ss3d-muted);margin-bottom:10px}
.ss3d-models{display:flex;flex-direction:column;gap:8px}
.ss3d .ss3d-btn{appearance:none;background:transparent;color:var(--ss3d-text);border:1px solid var(--ss3d-border);border-radius:8px;padding:10px 14px;font:inherit;font-size:14px;text-align:left;cursor:pointer;transition:border-color .2s,background .2s;line-height:1.3;text-transform:none;letter-spacing:0;box-shadow:none;margin:0}
.ss3d .ss3d-btn:hover{border-color:#55555f;background:rgba(255,255,255,.03)}
.ss3d .ss3d-btn.is-active{border-color:var(--ss3d-accent);background:rgba(255,255,255,.05);font-weight:600}
.ss3d-channels{display:flex;flex-wrap:wrap;gap:10px}
.ss3d .ss3d-ch{appearance:none;position:relative;width:46px;height:46px;border-radius:50%;border:2px solid transparent;background:#0b0b0d;padding:0;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .15s,border-color .2s;margin:0;box-shadow:none}
.ss3d .ss3d-ch:hover{transform:scale(1.06)}
.ss3d .ss3d-ch.is-active{border-color:var(--ss3d-text)}
.ss3d-ch-dot{position:absolute;inset:6px;border-radius:50%;opacity:.9}
.ss3d .ss3d-ch.is-active .ss3d-ch-dot{box-shadow:0 0 14px var(--glow);opacity:1}
.ss3d .ss3d-ch-off{background:#2a2a30}
.ss3d .ss3d-ch-off .ss3d-ch-num{font-size:10px;letter-spacing:.04em;color:#bbb}
.ss3d-ch-num{position:relative;font-size:13px;font-weight:700;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.8)}
.ss3d-channel-name{margin-top:10px;font-size:14px;color:var(--ss3d-text)}
.ss3d-drop{display:flex;flex-direction:column;gap:6px;align-items:center;text-align:center;border:1.5px dashed #44444d;border-radius:10px;padding:22px 14px;cursor:pointer;transition:border-color .2s,background .2s}
.ss3d-drop:hover,.ss3d-drop.is-over{border-color:var(--ss3d-accent);background:rgba(255,255,255,.03)}
.ss3d-drop input{display:none}
.ss3d-drop-title{font-size:14px;font-weight:600}
.ss3d-drop-sub{font-size:12px;color:var(--ss3d-muted)}
.ss3d-drop[hidden],.ss3d-logo-info[hidden],.ss3d-section[hidden]{display:none!important}
.ss3d-logo-info{display:flex;align-items:center;gap:12px;font-size:14px;border:1px solid var(--ss3d-border);border-radius:10px;padding:10px 12px}
.ss3d-logo-thumb{width:44px;height:44px;object-fit:contain;background:repeating-conic-gradient(#2a2a30 0% 25%,#1d1d22 0% 50%) 50%/12px 12px;border-radius:6px}
.ss3d .ss3d-link{appearance:none;background:none;border:0;color:var(--ss3d-accent);margin-left:auto;cursor:pointer;font:inherit;font-size:13px;padding:0;text-decoration:underline;box-shadow:none}
.ss3d-error{color:#ff6b6b;font-size:13px;margin-top:6px}
.ss3d-error:empty{display:none}
.ss3d-actions{margin-top:auto}
.ss3d .ss3d-primary{width:100%;text-align:center;background:var(--ss3d-accent);border-color:var(--ss3d-accent);color:#fff;font-weight:600}
.ss3d .ss3d-primary:hover{background:var(--ss3d-accent);filter:brightness(1.1);border-color:var(--ss3d-accent)}
.ss3d--compact{grid-template-columns:1fr}
.ss3d--compact .ss3d-panel{border-left:0;border-top:1px solid var(--ss3d-border);max-height:none}
@media (max-width:860px){.ss3d{grid-template-columns:1fr}.ss3d-stage{min-height:min(var(--ss3d-height),75vw + 120px)}.ss3d-panel{border-left:0;border-top:1px solid var(--ss3d-border);max-height:none}}

/* --- Telefoni e tablet --- */
.ss3d--touch .ss3d-canvas canvas{touch-action:pan-y}
@media (max-width:860px){
  .ss3d-stage{min-height:0;height:clamp(300px,92vw,var(--ss3d-height))}
  .ss3d-canvas{left:18px;right:18px}
  .ss3d-panel{padding:18px 16px;gap:18px}
  .ss3d-models{flex-direction:row;flex-wrap:wrap}
  .ss3d .ss3d-model-btn{flex:1 1 calc(50% - 8px);font-size:13px;padding:9px 10px}
  .ss3d .ss3d-ch{width:42px;height:42px}
}

/* --- Logo adesivo / luminoso --- */
.ss3d-logo-mode{font-size:13px;color:var(--ss3d-muted);margin:-2px 0 10px;line-height:1.45}
.ss3d-logo-mode:empty{display:none}
.ss3d-section.is-glow .ss3d-label::after{content:" ✦";color:var(--ss3d-accent)}
.ss3d .ss3d-mode-link{display:block;margin:10px 0 0;text-decoration:none;font-weight:600}
.ss3d .ss3d-mode-link:hover{text-decoration:underline}
.ss3d .ss3d-mode-link[hidden]{display:none}
.ss3d-warn{font-size:12.5px;color:#f0c050;margin-top:8px;line-height:1.4}
.ss3d-warn:empty{display:none}
/* --- Tanti canali (es. 45): pulsanti più piccoli --- */
.ss3d-channels--many{gap:7px}
.ss3d .ss3d-channels--many .ss3d-ch{width:34px;height:34px}
.ss3d .ss3d-channels--many .ss3d-ch-dot{inset:4px}
.ss3d .ss3d-channels--many .ss3d-ch-num{font-size:11px}
.ss3d .ss3d-channels--many .ss3d-ch-off .ss3d-ch-num{font-size:9px}