:root{--teal:#1CAF8E;--bg:#0B0F14;--bg2:#131A22;--fg:#F2F5F7;--dim:#96A2AE;--warn:#F5A524;--r:14px}
@font-face{font-family:Vazirmatn;src:url(/assets/fonts/Vazirmatn-Regular.woff2)format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Vazirmatn;src:url(/assets/fonts/Vazirmatn-Bold.woff2)format('woff2');font-weight:700;font-display:swap}
*{box-sizing:border-box}
[hidden]{display:none !important}   /* the UA rule loses to any author class */
body{margin:0;background:var(--bg);color:var(--fg);
  font-family:Vazirmatn,Tahoma,'Noto Naskh Arabic',system-ui,sans-serif}
.app{max-width:720px;margin:0 auto;padding:clamp(12px,4vw,24px);min-height:100dvh;display:flex;flex-direction:column;gap:16px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:8px}
.brand{height:clamp(20px,5.2vw,28px);width:auto;filter:brightness(1.25)}
.badge{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--teal);
  border:1px solid rgba(28,175,142,.45);border-radius:999px;padding:4px 10px;white-space:nowrap}
h1{font-size:clamp(22px,6vw,32px);margin:.2em 0}
h2{font-size:clamp(19px,5vw,26px);margin:.2em 0}
.lead{color:var(--dim);margin:0 0 8px}
.screen{display:flex;flex-direction:column;gap:12px}
form{display:flex;flex-direction:column;gap:12px}
label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--dim)}
input{font:inherit;color:var(--fg);background:var(--bg2);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r);padding:14px;min-height:52px}
input:focus{outline:2px solid var(--teal);outline-offset:1px}
.btn{font:inherit;font-weight:700;min-height:54px;padding:0 20px;border-radius:var(--r);
  border:1px solid rgba(255,255,255,.16);background:var(--bg2);color:var(--fg);cursor:pointer}
.btn.primary{background:var(--teal);border-color:var(--teal);color:#04231c}
.btn:disabled{opacity:.45;cursor:not-allowed}
.row{display:flex;gap:10px}.row .btn{flex:1}
.stage{position:relative;background:#000;border-radius:var(--r);overflow:hidden;aspect-ratio:3/4}
video{width:100%;height:100%;object-fit:cover}
video.is-mirrored{transform:scaleX(-1)}
.guide{position:absolute;inset:0;pointer-events:none;
  border:3px dashed rgba(255,255,255,.35);border-radius:50%/38%;margin:8% 14%}
.guide.ok{border-color:var(--teal);border-style:solid}
.styles{display:flex;gap:8px}
.chip{flex:1;font:inherit;font-size:14px;font-weight:700;min-height:44px;padding:0 12px;cursor:pointer;
  border:1px solid rgba(255,255,255,.16);border-radius:999px;background:var(--bg2);color:var(--dim)}
.chip.is-on{border-color:var(--teal);color:var(--teal);background:rgba(28,175,142,.12)}
.coach{margin:0;color:var(--dim);font-size:14px;min-height:1.5em;text-align:center}
.coach.warn{color:var(--warn)}.coach.ok{color:var(--teal)}
.err{color:#ff6b6b;font-size:13px;margin:0}
.privacy{color:var(--dim);font-size:12.5px;line-height:1.7;opacity:.85}
.spinner{width:44px;height:44px;margin:32px auto;border:3px solid rgba(255,255,255,.15);
  border-top-color:var(--teal);border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.ticket{font-size:18px}.ticket strong{color:var(--teal);font-size:26px;letter-spacing:.05em}
.sheet{width:100%;background:#fff;border-radius:var(--r)}