/* round 50: iOS-style switches, track action menu, swipeable photo viewer */
/* ---- switches (Settings: Keep screen awake, Auto-play next, Remind me, …) ---- */
.setrow input[type=checkbox],input[type=checkbox].sw50{-webkit-appearance:none;appearance:none;flex:none;position:relative;box-sizing:border-box;width:51px!important;height:31px!important;margin:0;padding:0;border:0;border-radius:999px;cursor:pointer;
  background:color-mix(in srgb,var(--mute) 32%,var(--soft));box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--ink) 10%,transparent);transition:background-color .25s ease,box-shadow .25s ease;-webkit-tap-highlight-color:transparent;accent-color:auto;vertical-align:middle;outline:none}
.setrow input[type=checkbox]::after,input[type=checkbox].sw50::after{content:"";position:absolute;top:2px;left:2px;width:27px;height:27px;border-radius:50%;background:#fff;
  box-shadow:0 3px 8px rgba(0,0,0,.28),0 1px 1px rgba(0,0,0,.16);transform:translateX(0);transition:transform .3s cubic-bezier(.3,1.35,.55,1),width .2s ease}
.setrow input[type=checkbox]:checked,input[type=checkbox].sw50:checked{background:var(--saf);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--saf) 70%,#000)}
.setrow input[type=checkbox]:checked::after,input[type=checkbox].sw50:checked::after{transform:translateX(20px)}
.setrow input[type=checkbox]:active::after{width:32px}.setrow input[type=checkbox]:checked:active::after{transform:translateX(15px)}
.setrow input[type=checkbox]:focus-visible{box-shadow:0 0 0 3px color-mix(in srgb,var(--saf) 45%,transparent)}
.setrow input[type=checkbox]:disabled{opacity:.45;cursor:default}
:root[data-theme=sadhu] .setrow input[type=checkbox]:checked::after{background:#ffa94d}
@media (prefers-reduced-motion:reduce){.setrow input[type=checkbox],.setrow input[type=checkbox]::after{transition:none}}

/* ---- track action menu (⋮ / long-press) ---- */
#view li.item[data-id],#view ol.r17tracks li[data-t],#view .hcard[data-id]{-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}
#view li.item[data-id],#view ol.r17tracks li[data-t]{transition:transform .18s ease,background-color .18s ease}
#view .r50hold{transition:transform .45s ease .12s}#view li.r50hold{transform:scale(.98)}
.r50lift{position:relative;z-index:1}
#view ol.r17tracks li[data-t]{position:relative;padding-right:40px}
.r50dots{position:absolute;right:2px;top:50%;transform:translateY(-50%);width:36px;height:36px;border:0;border-radius:50%;background:none;color:var(--mute);font-size:1.25rem;line-height:1;cursor:pointer}
.r50dots:active,#view .item .more:active{background:color-mix(in srgb,var(--ink) 10%,transparent)}
.r50menu{position:fixed;inset:0;z-index:95}
.r50bk{position:absolute;inset:0;background:rgba(0,0,0,.28);opacity:0;transition:opacity .18s ease;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}
.r50pop{position:absolute;background:color-mix(in srgb,var(--card) 92%,var(--ink) 4%);color:var(--ink);border:1px solid color-mix(in srgb,var(--line) 80%,transparent);border-radius:14px;
  box-shadow:0 18px 50px rgba(0,0,0,.45),0 2px 8px rgba(0,0,0,.25);overflow:hidden;opacity:0;transform:scale(.6);transition:transform .26s cubic-bezier(.2,1.3,.4,1),opacity .14s ease}
.r50menu.in .r50bk{opacity:1}.r50menu.in .r50pop{opacity:1;transform:scale(1)}
.r50menu.out .r50bk{opacity:0}.r50menu.out .r50pop{opacity:0;transform:scale(.9);transition-duration:.14s}
.r50ti{padding:11px 16px 9px;font-size:.78rem;color:var(--mute);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-bottom:1px solid color-mix(in srgb,var(--line) 80%,transparent)}
.r50pop button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border:0;background:none;color:inherit;font:inherit;font-size:1rem;text-align:left;cursor:pointer}
.r50pop button+button{border-top:1px solid color-mix(in srgb,var(--line) 60%,transparent)}
.r50pop button.r50sep{border-top:6px solid color-mix(in srgb,var(--line) 55%,transparent)}
.r50pop button:active,.r50pop button:focus-visible{background:color-mix(in srgb,var(--saf) 16%,transparent);outline:none}
.r50pop svg{width:20px;height:20px;flex:none;fill:none;stroke:var(--saf);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@media (prefers-reduced-motion:reduce){.r50pop,.r50bk{transition:none}}

/* ---- photo viewer: swipe track ---- */
.sv50{touch-action:none;outline:none;transition:background .2s}
.sv50 .sstage{position:relative;flex:1;min-height:0;overflow:hidden;touch-action:none}
.sv50 .strack{position:absolute;inset:0;display:flex;width:300%;will-change:transform}
.sv50 .sslide{box-sizing:border-box;padding:0 6px;flex:0 0 33.3334%;height:100%;display:flex;align-items:center;justify-content:center;overflow:hidden}
.sv50 .simg{width:100%;height:100%;object-fit:contain;transform-origin:center;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;pointer-events:none}
.sv50 .svcount{margin-left:auto;font-size:.8rem;opacity:.8;font-variant-numeric:tabular-nums}
.sv50 .sbars{align-items:center;min-height:3px}