/* GSA Meccatronica — area officine e admin */
:root{
  color-scheme:light;
  --bg:#EFEFF1; --ink:#0B0B0C; --ink-2:#3A3A3C; --muted:#606067; --body:#55555B;
  --hair:rgba(0,0,0,.08); --hair-2:rgba(0,0,0,.14);
  --glass:rgba(255,255,255,.52); --glass-strong:rgba(250,250,252,.9); --glass-dock:rgba(248,248,250,.8);
  --glass-edge:rgba(255,255,255,.78); --glass-hi:rgba(255,255,255,.95); --glass-shade:rgba(0,0,0,.05);
  --spec:rgba(255,255,255,.7);
  --lens:rgba(255,255,255,.95); --lens-shadow:0 2px 10px rgba(0,0,0,.10);
  --field:rgba(0,0,0,.05); --field-focus:rgba(0,0,0,.025);
  --solid:#0B0B0C; --on-solid:#FFFFFF; --solid-rim:rgba(255,255,255,.22);
  --shadow:0 1px 2px rgba(0,0,0,.05),0 12px 32px -10px rgba(0,0,0,.2);
  --shadow-lg:0 30px 80px -20px rgba(0,0,0,.38),0 8px 24px rgba(0,0,0,.08);
  --backdrop:rgba(0,0,0,.18);
  --blue:#0A84FF; --orange:#FF9500; --green:#28CD41; --grey:#8E8E93; --red:#FF3B30; --purple:#AF52DE;
  --danger:#D70015; --ok:#1E8E3E;
  --font:"Geist",-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;
  --mono:"Geist Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;background:var(--bg);min-height:100%}
body{font-family:var(--font);color:var(--ink);font-size:15px;line-height:1.45;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%}
img{max-width:100%}
a{color:inherit}
button{font-family:inherit;color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
h1,h2,h3{margin:0;letter-spacing:-.03em;line-height:1.1;text-wrap:balance}
p{margin:0}

.ambient{position:fixed;inset:0;z-index:0;pointer-events:none;background:
  radial-gradient(34% 26% at 10% 6%,rgba(0,0,0,.14),transparent 72%),
  radial-gradient(30% 22% at 94% 20%,rgba(0,0,0,.07),transparent 72%),
  radial-gradient(26% 20% at 60% 44%,rgba(255,255,255,.95),transparent 70%),
  radial-gradient(40% 28% at 78% 72%,rgba(0,0,0,.12),transparent 74%),
  radial-gradient(34% 24% at 6% 92%,rgba(0,0,0,.07),transparent 72%)}
.glass{background:linear-gradient(180deg,var(--spec),transparent 44%),linear-gradient(var(--glass),var(--glass));-webkit-backdrop-filter:blur(22px) saturate(180%);backdrop-filter:blur(22px) saturate(180%);border:1px solid var(--glass-edge);box-shadow:inset 0 1px 0 var(--glass-hi),inset 0 -1px 0 var(--glass-shade),var(--shadow)}
@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){.glass{background:var(--glass-strong)}}

/* Schermate di accesso */
.screen{position:relative;z-index:1;min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:calc(24px + env(safe-area-inset-top,0px)) 16px calc(24px + env(safe-area-inset-bottom,0px))}
.splash img{height:60px;width:auto;opacity:.9}
.auth-card{width:100%;max-width:460px;border-radius:32px;padding:28px 22px 22px;display:flex;flex-direction:column;gap:14px}
.auth-card .logo img{height:48px;width:auto;display:block}
.auth-card h1{font-size:26px;font-weight:700;margin-top:6px}
.auth-card .intro{color:var(--muted);font-size:14.5px}
.linkbtn{border:0;background:transparent;color:var(--ink-2);font-weight:500;font-size:14px;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:6px}
.center{align-self:center}
.back{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--muted);text-decoration:none;padding:4px 0}
.seg-auth{display:grid;grid-template-columns:1fr 1fr;gap:3px;padding:4px;border-radius:999px;background:var(--field)}
.seg-auth button{height:40px;border:0;border-radius:999px;background:transparent;font-weight:600;font-size:14px;color:var(--muted);cursor:pointer}
.seg-auth button[aria-pressed="true"]{background:#fff;color:var(--ink);box-shadow:var(--lens-shadow)}

/* Struttura app */
.app{position:relative;z-index:1;max-width:980px;margin:0 auto;padding-inline:16px;padding-block:calc(14px + env(safe-area-inset-top,0px)) calc(130px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:16px}
.topbar{position:sticky;top:calc(10px + env(safe-area-inset-top,0px));z-index:20;display:flex;align-items:center;gap:12px;padding:8px 8px 8px 20px;border-radius:999px}
.topbar .logo img{height:30px;width:auto;display:block}
.topbar .sep{width:1px;height:24px;background:var(--hair-2)}
.topbar .title{font-weight:600;font-size:15.5px;white-space:nowrap}
.tabs{display:flex;gap:2px;margin-left:10px;flex:1}
.tabs button{height:40px;padding:0 14px;border:0;border-radius:999px;background:transparent;font-weight:500;font-size:14.5px;color:var(--ink-2);cursor:pointer;white-space:nowrap}
.tabs button[aria-pressed="true"]{background:var(--lens);color:var(--ink);font-weight:600;box-shadow:inset 0 1px 0 var(--glass-hi),var(--lens-shadow)}
.tabs button .badge{margin-left:6px}
.topbar .spacer{flex:1}
.icon-btn{width:40px;height:40px;border-radius:50%;border:0;background:var(--field);display:grid;place-items:center;cursor:pointer;flex:none}
.btn-new{height:40px;padding:0 16px;border:0;border-radius:999px;background:var(--solid);color:var(--on-solid);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;cursor:pointer;flex:none;box-shadow:inset 0 1px 0 var(--solid-rim)}
.dock{display:none}
@media (max-width:860px){
  .tabs,.btn-new.top{display:none}
  .topbar .spacer{display:block}
  .dock{position:fixed;left:0;right:0;bottom:calc(14px + env(safe-area-inset-bottom,0px));z-index:30;display:flex;justify-content:center;align-items:center;gap:10px;padding-inline:12px;pointer-events:none}
  .dock > *{pointer-events:auto}
}
.dock .seg{flex:1 1 auto;max-width:430px;display:flex;gap:2px;padding:5px;border-radius:999px;background:linear-gradient(180deg,var(--spec),transparent 44%),linear-gradient(var(--glass-dock),var(--glass-dock));-webkit-backdrop-filter:blur(28px) saturate(190%);backdrop-filter:blur(28px) saturate(190%);border:1px solid var(--glass-edge);box-shadow:inset 0 1px 0 var(--glass-hi),var(--shadow)}
.dock .seg button{flex:1;min-width:0;height:52px;border:0;border-radius:999px;background:transparent;color:var(--ink-2);font-weight:500;font-size:11.5px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;cursor:pointer;position:relative}
.dock .seg button[aria-pressed="true"]{background:var(--lens);color:var(--ink);font-weight:600;box-shadow:inset 0 1px 0 var(--glass-hi),var(--lens-shadow)}
.dock .seg .badge{position:absolute;top:4px;right:calc(50% - 20px)}
.fab{width:60px;height:60px;border-radius:50%;border:0;background:var(--solid);color:var(--on-solid);display:grid;place-items:center;cursor:pointer;flex:none;box-shadow:inset 0 1px 0 var(--solid-rim),var(--shadow-lg)}

.badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:var(--red);color:#fff;font-size:11px;font-weight:700;font-variant-numeric:tabular-nums}

/* Contenuti */
.page-title{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:6px 4px 0}
.page-title h1{font-size:30px;font-weight:700}
.page-title p{color:var(--muted);font-size:14.5px;margin-top:4px}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.stats.four{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:700px){.stats,.stats.four{grid-template-columns:repeat(2,minmax(0,1fr))}}
.stat{border-radius:24px;padding:14px 16px 15px;display:flex;flex-direction:column;gap:6px;min-width:0;text-align:left;border:0;font:inherit;cursor:default}
button.stat{cursor:pointer}
.stat-label{font-size:13px;font-weight:500;color:var(--muted);display:flex;align-items:center;gap:7px}
.stat-num{font-weight:600;font-size:40px;line-height:1;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.stat-foot{font-size:12.5px;color:var(--muted)}
.stat.solid{background:var(--solid);color:var(--on-solid);box-shadow:inset 0 1px 0 var(--solid-rim),var(--shadow)}
.stat.solid .stat-label,.stat.solid .stat-foot{color:var(--on-solid);opacity:.62}

.section-h{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 4px 0}
.section-h h2{font-size:18px;font-weight:600;letter-spacing:-.015em}
.section-h span{font-size:13px;color:var(--muted)}
.list{display:flex;flex-direction:column;gap:10px}
.item{border-radius:22px;padding:14px 16px;display:flex;align-items:center;gap:12px;cursor:pointer;text-align:left;width:100%;font:inherit}
.item:active{transform:scale(.99)}
.item .main{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}
.item .t1{font-weight:600;font-size:15.5px;overflow-wrap:anywhere}
.item .t2{font-size:13.5px;color:var(--muted);overflow-wrap:anywhere}
.item .right{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex:none}
.item .chev{color:var(--muted);flex:none}
@media (max-width:520px){.item{flex-wrap:wrap;row-gap:10px}.item .main{flex:1 1 calc(100% - 40px)}.item .right{order:3;flex-basis:100%;align-items:flex-start}}
.empty{border-radius:24px;padding:24px 18px;text-align:center;color:var(--muted);font-size:14.5px}
.empty strong{display:block;color:var(--ink);font-size:16.5px;font-weight:600;margin-bottom:4px}
.callout{border-radius:22px;padding:16px;display:flex;gap:12px;align-items:flex-start;background:var(--solid);color:var(--on-solid);box-shadow:var(--shadow)}
.callout p{color:rgba(255,255,255,.75);font-size:14px;margin-top:2px}
.callout strong{font-size:15.5px}
.note{font-size:13.5px;color:var(--muted)}

/* Targa e stati */
.plate{display:inline-flex;align-items:stretch;height:26px;border:1px solid rgba(0,0,0,.25);border-radius:6px;overflow:hidden;background:#fff;color:#0D0D0D;flex:none;box-shadow:0 1px 2px rgba(0,0,0,.12)}
.plate::before{content:"";width:13px;background:#1D3E9A}
.plate::after{content:"";width:8px;background:#1D3E9A}
.plate span{font-family:var(--mono);font-weight:600;font-size:14px;letter-spacing:.04em;padding:0 8px;display:flex;align-items:center;white-space:nowrap}
.pill{display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 11px 0 10px;border-radius:999px;background:var(--field);font-size:12.5px;font-weight:500;white-space:nowrap}
.dot{width:8px;height:8px;border-radius:50%;background:var(--sc,var(--grey));flex:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--sc,var(--grey)) 20%,transparent)}
.c-grey{--sc:var(--grey)} .c-blue{--sc:var(--blue)} .c-orange{--sc:var(--orange)} .c-green{--sc:var(--green)} .c-red{--sc:var(--red)} .c-purple{--sc:var(--purple)} .c-ink{--sc:var(--ink-2)}
.num{font-family:var(--mono);font-size:12.5px;color:var(--muted)}

/* Timeline */
.timeline{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0}
.timeline li{display:flex;gap:12px;align-items:flex-start;position:relative;padding-bottom:14px;font-size:14.5px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:10px;top:24px;bottom:2px;width:2px;background:var(--hair-2)}
.timeline li:last-child::before{display:none}
.timeline .st{width:22px;height:22px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;box-sizing:border-box;background:#fff;border:2px solid var(--hair-2);position:relative;z-index:1}
.timeline li.done .st{background:var(--solid);border-color:var(--solid);color:#fff}
.timeline li.now .st{border-color:var(--blue)}
.timeline li.now .st::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue)}
.timeline li.todo{color:var(--muted)}
.timeline li.now{font-weight:600}
.timeline small{display:block;font-size:12.5px;color:var(--muted);font-weight:400}

/* Fogli */
.backdrop{position:fixed;inset:0;z-index:40;background:var(--backdrop);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:flex-end;justify-content:center;padding:8px 8px calc(8px + env(safe-area-inset-bottom,0px))}
.sheet{width:100%;max-width:640px;max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px - env(safe-area-inset-top,0px) - env(safe-area-inset-bottom,0px));overflow-y:auto;-webkit-overflow-scrolling:touch;border-radius:32px;padding:8px 18px 20px;background:linear-gradient(180deg,var(--spec),transparent 30%),linear-gradient(var(--glass-strong),var(--glass-strong));-webkit-backdrop-filter:blur(40px) saturate(180%);backdrop-filter:blur(40px) saturate(180%);border:1px solid var(--glass-edge);box-shadow:inset 0 1px 0 var(--glass-hi),var(--shadow-lg);animation:up .28s cubic-bezier(.2,.9,.3,1.1)}
.sheet.wide{max-width:760px}
@keyframes up{from{transform:translateY(30px) scale(.98);opacity:.4}to{transform:none;opacity:1}}
@media (min-width:760px){.backdrop{align-items:center;padding:24px}}
.grab{width:38px;height:5px;border-radius:3px;background:var(--hair-2);margin:4px auto 12px}
.sheet-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.sheet-h h2{font-size:21px;font-weight:700}
.sheet-h .sub{font-size:13px;color:var(--muted);margin-top:2px}
.block{padding:16px;border-radius:22px;background:var(--field);display:flex;flex-direction:column;gap:12px;margin-bottom:12px}
.block h3{font-size:15px;font-weight:600;letter-spacing:-.01em}
.kv{margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 14px}
.kv div{min-width:0}
.kv dt,.kv .k{font-size:12px;color:var(--muted);font-weight:500}
.kv dd,.kv .v{margin:2px 0 0;font-size:14.5px;font-weight:500;overflow-wrap:anywhere}
.kv .full{grid-column:1/-1}
@media (max-width:480px){.kv{grid-template-columns:1fr}}
.photos{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.photo{position:relative;border-radius:16px;overflow:hidden;background:var(--hair);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;font-size:12.5px;color:var(--muted);text-align:center;padding:0;border:0;cursor:pointer}
.photo img{width:100%;height:100%;object-fit:cover;display:block}
.photo .lab{position:absolute;left:8px;bottom:8px;background:rgba(0,0,0,.6);color:#fff;border-radius:999px;padding:2px 8px;font-size:11.5px;font-weight:600}
.files{display:flex;flex-wrap:wrap;gap:8px}

/* Moduli */
.fgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field.full{grid-column:1/-1}
.field label,.flabel{font-size:13px;font-weight:500;color:var(--muted);padding-left:4px}
.field input,.field textarea,.field select{height:50px;border:1px solid transparent;border-radius:16px;background:var(--field);color:var(--ink);padding:0 14px;font:inherit;font-size:16px;width:100%;min-width:0}
.block .field input,.block .field textarea{background:rgba(255,255,255,.85)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--ink);background:var(--field-focus)}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.45}
.field input::placeholder,.field textarea::placeholder{color:#8A8A90}
.field .hint{font-size:12.5px;color:var(--muted);padding-left:4px}
.mono{font-family:var(--mono)!important;font-weight:600;letter-spacing:.05em;text-transform:uppercase}
.check{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:18px;background:var(--field);cursor:pointer;font-size:14.5px}
.check input{width:22px;height:22px;margin:0;flex:none;accent-color:var(--ink)}
.upload{display:flex;align-items:center;gap:12px;padding:12px;border-radius:18px;background:var(--field);border:1.5px dashed var(--hair-2)}
.upload .thumb{width:64px;height:64px;border-radius:12px;background:var(--hair);flex:none;overflow:hidden;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.upload .thumb img{width:100%;height:100%;object-fit:cover}
.upload .ut{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.upload .ut b{font-size:14.5px}
.upload .ut span{font-size:12.5px;color:var(--muted);overflow-wrap:anywhere}
.upload label.btn-sm{cursor:pointer}
.upload input[type=file]{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.hp{position:absolute;left:-5000px;width:1px;height:1px;overflow:hidden}
.err{color:var(--danger);font-size:13.5px;font-weight:600}
.okmsg{color:var(--ok);font-size:13.5px;font-weight:600}
.actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.btn{height:52px;padding:0 22px;border-radius:999px;font-weight:600;font-size:15.5px;cursor:pointer;border:0;background:var(--field);display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}
.btn.primary{background:var(--solid);color:var(--on-solid);box-shadow:inset 0 1px 0 var(--solid-rim)}
.btn.grow{flex:1 1 150px}
.btn.wide{width:100%;flex:none}
.btn:disabled{opacity:.5;cursor:default}
.btn.danger{background:transparent;color:var(--danger);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--danger) 45%,transparent)}
.btn.danger.armed{background:var(--danger);color:#fff;box-shadow:none}
.btn.green{background:#1E8E3E;color:#fff}
.btn-sm{height:36px;padding:0 14px;border-radius:999px;border:0;background:#fff;font-weight:600;font-size:13px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;text-decoration:none;box-shadow:0 1px 2px rgba(0,0,0,.08);white-space:nowrap}
.btn-sm.dark{background:var(--solid);color:var(--on-solid)}
.chips{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:2px 2px 4px}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;height:36px;padding:0 14px;border-radius:999px;border:0;background:rgba(255,255,255,.7);box-shadow:0 1px 2px rgba(0,0,0,.06);font-weight:500;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.chip[aria-pressed="true"]{background:var(--solid);color:var(--on-solid)}
.search{position:relative;border-radius:999px}
.search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}
.search input{width:100%;height:48px;border:0;border-radius:999px;background:transparent;padding:0 16px 0 42px;font:inherit;font-size:16px;color:var(--ink)}
.search input:focus{outline:none}
.search:focus-within{outline:2px solid var(--ink);outline-offset:2px}
.steps-pick{display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:8px}
.steps-pick button{min-height:46px;border-radius:14px;border:0;background:#fff;font-weight:500;font-size:13.5px;cursor:pointer;padding:8px 12px;display:flex;align-items:center;gap:8px;text-align:left;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.steps-pick button[aria-pressed="true"]{background:var(--solid);color:var(--on-solid);font-weight:600}
.linkbox{display:flex;gap:8px;align-items:center;padding:10px 10px 10px 14px;border-radius:16px;background:#fff;font-family:var(--mono);font-size:12px;overflow-wrap:anywhere}
.linkbox span{flex:1;min-width:0;word-break:break-all}

/* Admin */
.toolbar{display:flex;flex-direction:column;gap:10px}
.item.flat{background:#fff;border:0;box-shadow:0 1px 2px rgba(0,0,0,.06);border-radius:18px;padding:12px 14px}
.ph{position:relative}
.ph .photo{width:100%}
.ph .del{position:absolute;top:6px;right:6px;width:30px;height:30px;border-radius:50%;border:0;background:rgba(0,0,0,.62);color:#fff;display:grid;place-items:center;cursor:pointer}
.doc-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 10px 10px 14px;border-radius:16px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.doc-row .dl{flex:1;min-width:150px;font-weight:600;font-size:14.5px}
.doc-row .dl small{display:block;font-weight:400;color:var(--muted);font-size:12.5px}
.btn-sm.ghost{background:transparent;box-shadow:none;color:var(--danger)}
.tag{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;padding:2px 9px;border-radius:999px;vertical-align:1px;margin-left:6px}
.tag.ok{background:rgba(30,142,62,.12);color:var(--ok)}
.tag.ko{background:rgba(215,0,21,.1);color:var(--danger)}
.block.dark{background:var(--solid);color:var(--on-solid)}
.block.dark p,.block.dark .note{color:rgba(255,255,255,.75)}
.block.dark .field label{color:rgba(255,255,255,.7)}
.block.white{background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.block.white .field input,.block.white .field textarea{background:var(--field)}
.block.white .field input:focus,.block.white .field textarea:focus{background:var(--field-focus)}
.late{color:var(--danger)!important;font-weight:600}
.stat.solid .late{color:#FF8A8A!important;opacity:1}
.topbar .icon-btn{margin-left:4px}

.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(96px + env(safe-area-inset-bottom,0px));background:var(--solid);color:var(--on-solid);padding:11px 18px;border-radius:999px;font-weight:600;font-size:14px;z-index:60;max-width:calc(100% - 32px);box-shadow:var(--shadow-lg);text-align:center}
.viewer{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.88);display:flex;align-items:center;justify-content:center;padding:20px}
.viewer img{max-width:100%;max-height:100%;border-radius:12px}
.viewer button{position:absolute;top:calc(16px + env(safe-area-inset-top,0px));right:16px;width:44px;height:44px;border-radius:50%;border:0;background:rgba(255,255,255,.18);color:#fff;font-size:22px;cursor:pointer}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}