:root{--bg:#faf9f7;--ink:#141210;--gray:#6f6a64;--line:rgba(20,18,16,.1);--card:#fff;--ok:#2f6b3a;--err:#9a2f22}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 Assistant,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
.pc{max-width:460px;margin:0 auto;padding:max(14px,env(safe-area-inset-top)) 20px 40px;min-height:100vh;display:flex;flex-direction:column}
.pc-top{display:flex;justify-content:space-between;align-items:center;padding:6px 0 14px}
.pc-top .wm{height:22px;width:auto;color:var(--ink)}
.pc-top .lnk{font-size:13.5px;color:var(--gray);background:none;border:0;font:inherit;cursor:pointer;padding:6px 0}
h1{font-family:Bellefair,Georgia,serif;font-weight:400;font-size:38px;line-height:1.05;margin:14px 0 8px}
.lead{color:var(--gray);font-size:15.5px;margin:0 0 20px}
.box{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px}
.row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:16px;gap:10px}
.row .t{font-size:17px;font-weight:500}.row .c{font-size:13px;color:var(--gray);white-space:nowrap}
.slots{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;justify-items:center}
.slot{width:100%;max-width:50px;aspect-ratio:1;border-radius:50%;border:1.3px dashed rgba(20,18,16,.28);display:block}
.slot.on{border:0;color:var(--ink)}
.slot svg{width:100%;height:100%;display:block}
.prog{margin-top:16px;text-align:center;font-size:14.5px}
.ready{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.ready .row .c{color:rgba(250,249,247,.65)}.ready .slot.on{color:var(--bg)}
.ready h2{font-family:Bellefair,Georgia,serif;font-weight:400;font-size:30px;text-align:center;margin:0 0 4px}
.qr{display:flex;flex-direction:column;align-items:center;gap:8px;margin-top:22px;font-size:13px;color:var(--gray);text-align:center}
.qr .code{font-size:22px;letter-spacing:.2em;color:var(--ink);font-variant-numeric:tabular-nums}
.inp{width:100%;border:1px solid var(--line);border-radius:12px;padding:13px 14px;font:inherit;font-size:16px;background:#fff;color:var(--ink);margin-bottom:10px;direction:ltr;text-align:right}
.inp.rtl{direction:rtl}
.btn{display:flex;align-items:center;justify-content:center;width:100%;min-height:50px;border-radius:999px;border:0;background:var(--ink);color:var(--bg);font:inherit;font-size:16px;font-weight:500;cursor:pointer;text-decoration:none;padding:0 18px}
.btn.g{background:none;border:1px solid rgba(20,18,16,.2);color:var(--ink)}
.btn.big{min-height:64px;border-radius:18px;font-size:19px;font-weight:600}
.btn[disabled]{opacity:.5;cursor:default}
.mt{margin-top:10px}.mt2{margin-top:18px}
.small{font-size:12.5px;color:#8a847d;margin-top:12px;line-height:1.55}
.msg{min-height:1.4em;font-size:14px;margin-top:10px;text-align:center}
.msg.ok{color:var(--ok)}.msg.err{color:var(--err)}
.howto{margin-top:26px;border-top:1px solid var(--line);padding-top:16px;font-size:14px;color:var(--gray)}
.howto b{color:var(--ink);font-weight:500}
.sep{display:flex;align-items:center;gap:10px;color:#9a948d;font-size:13px;margin:16px 0}
.sep:before,.sep:after{content:"";flex:1;height:1px;background:var(--line)}
.cam{position:fixed;inset:0;background:#000;z-index:50;display:none;flex-direction:column}
.cam.on{display:flex}
.cam video{flex:1;width:100%;object-fit:cover}
.cam .bar{padding:14px 20px max(18px,env(safe-area-inset-bottom));background:#000;color:#fff;display:flex;justify-content:space-between;align-items:center;font-size:15px}
.cam .frame{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none}
.cam .frame span{width:62vmin;height:62vmin;border:2px solid rgba(255,255,255,.85);border-radius:22px}
.hide{display:none!important}
/* original black & white, finer lines */
.slot{border:1px dashed rgba(20,18,16,.22)}
.slot.on{border:0}
.box{border-color:rgba(20,18,16,.08)}
.btn{font-weight:400;letter-spacing:.01em}
.btn.g{border-color:rgba(20,18,16,.14)}
.ready h2{font-size:32px}
[dir=ltr] .inp{text-align:left}
[dir=ltr] h1{font-size:36px}
/* add-to-home-screen */
#install{gap:0}
.sheet{position:fixed;inset:0;background:rgba(20,18,16,.45);z-index:60;display:flex;align-items:flex-end;justify-content:center}
.sheet[hidden]{display:none}
.sh-in{background:var(--bg);width:100%;max-width:460px;border-radius:22px 22px 0 0;padding:26px 22px max(26px,env(safe-area-inset-bottom));text-align:center}
.sh-ic{width:64px;height:64px;border-radius:15px;display:block;margin:0 auto 12px;border:1px solid rgba(20,18,16,.12)}
.sh-in h3{font-family:Bellefair,Georgia,serif;font-weight:400;font-size:26px;margin:0 0 14px}
.sh-in ol{text-align:start;margin:0 0 20px;padding-inline-start:22px;font-size:15.5px;line-height:1.6}
.sh-in li{margin-bottom:8px}.sh-in b{font-weight:600}
.sh-arrow{display:none}
.sh-arrow.down{display:block;position:fixed;bottom:6px;left:50%;width:2px;height:0}
.sh-arrow.up{display:block;position:fixed;top:8px;right:22px}
.sh-arrow.down:after,.sh-arrow.up:after{content:"";position:absolute;width:16px;height:16px;border:solid #fff;border-width:0 2.5px 2.5px 0;animation:bob 1s ease-in-out infinite alternate}
.sh-arrow.down:after{left:-8px;bottom:0;transform:rotate(45deg);border-color:#141210}
.sh-arrow.up:after{top:0;transform:rotate(-135deg)}
@keyframes bob{to{translate:0 6px}}
@media (prefers-reduced-motion:reduce){.sh-arrow:after{animation:none}}
.pc-top .tops{display:flex;gap:16px;align-items:center}