:root{--navy:#0c3490;--deep:#08175c;--grey:#e9e9e9;--light:#def2ff;--muted:#757575;--err:#c62828}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--deep)}
body{font-family:Inter,system-ui,-apple-system,sans-serif;font-weight:300;color:var(--deep);-webkit-font-smoothing:antialiased}
#app{max-width:520px;margin:0 auto;min-height:100%;background:var(--grey);position:relative}
.screen{display:none;min-height:100vh;min-height:100dvh;flex-direction:column}
.screen.active{display:flex;animation:in .35s ease}
@keyframes in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
h1,h2{font-weight:900;letter-spacing:-.02em;margin:0}
.hero{background:radial-gradient(120% 90% at 85% 0%,#1d4fc4 0%,var(--navy) 40%,var(--deep) 100%);color:#fff;padding:calc(22px + env(safe-area-inset-top)) 24px 34px;position:relative;overflow:hidden}
.hero h1{font-size:44px;line-height:1.02;margin-top:14px}
.hero.small h1{font-size:30px}
.hero.tall{flex:1;display:flex;flex-direction:column;justify-content:center;text-align:center;align-items:center}
.lead{font-size:18px;line-height:1.45;color:var(--light);margin:14px 0 0}
.demo-pill{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;background:rgba(222,242,255,.16);color:var(--light);padding:6px 10px;border-radius:99px}
.burst{position:absolute;right:-26px;top:40px;width:150px;height:150px;border-radius:50%;background:var(--light);color:var(--navy);display:flex;align-items:center;justify-content:center;transform:rotate(12deg);box-shadow:0 0 0 12px rgba(222,242,255,.18),0 0 0 26px rgba(222,242,255,.08)}
.burst span{font-weight:900;font-size:22px;line-height:1;text-align:center;margin-right:18px}
#s-landing h1{margin-top:70px;font-size:54px}
.panel{background:#fff;border-radius:22px 22px 0 0;margin-top:-16px;padding:24px 22px calc(24px + env(safe-area-inset-bottom));flex:1;display:flex;flex-direction:column;gap:14px;position:relative}
.panel p{margin:0;line-height:1.5;font-size:16px}
strong,b{font-weight:600}
.step-ask{display:flex;gap:14px;align-items:flex-start}
.ask-icon{flex:0 0 48px;height:48px;border-radius:14px;background:var(--light);color:var(--navy);display:flex;align-items:center;justify-content:center}
.ask-icon svg{width:26px;height:26px}
.btn{appearance:none;border:0;border-radius:14px;font:600 18px Inter,system-ui,sans-serif;padding:17px 20px;width:100%;cursor:pointer;transition:transform .1s}
.btn:active{transform:scale(.98)}
.btn.primary{background:var(--navy);color:#fff;margin-top:auto}
.btn.primary:disabled{opacity:.6}
.btn.ghost{background:transparent;color:var(--navy);border:2px solid var(--light)}
.btn.light{background:#fff;color:var(--deep)}
.fine{font-size:13px!important;color:var(--muted)}
.center{text-align:center}
/* camera */
.camera{background:#000;position:relative;overflow:hidden}
.camera video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cam-top{position:absolute;left:0;right:0;top:0;padding:calc(20px + env(safe-area-inset-top)) 22px 40px;background:linear-gradient(rgba(8,23,92,.85),transparent);color:#fff;text-align:center}
.cam-top h2{font-size:22px;line-height:1.15}
.cam-top p{margin:6px 0 0;color:var(--light)}
.cam-bottom{position:absolute;left:0;right:0;bottom:0;padding:40px 22px calc(22px + env(safe-area-inset-bottom));background:linear-gradient(transparent,rgba(8,23,92,.9));display:flex;flex-direction:column;gap:14px}
.steady{height:6px;border-radius:6px;background:rgba(255,255,255,.25);overflow:hidden}
.steady-fill{height:100%;width:0;background:var(--light);transition:width .15s linear}
.frame-guide{position:absolute;left:10%;right:10%;top:22%;bottom:24%}
.frame-guide .c{position:absolute;width:42px;height:42px;border:4px solid #fff;opacity:.9}
.tl{left:0;top:0;border-right:0!important;border-bottom:0!important;border-radius:14px 0 0 0}
.tr{right:0;top:0;border-left:0!important;border-bottom:0!important;border-radius:0 14px 0 0}
.bl{left:0;bottom:0;border-right:0!important;border-top:0!important;border-radius:0 0 0 14px}
.br{right:0;bottom:0;border-left:0!important;border-top:0!important;border-radius:0 0 14px 0}
.flash{position:absolute;inset:0;background:#fff;opacity:0;pointer-events:none}
.flash.go{animation:flash .45s ease}
@keyframes flash{0%{opacity:.9}100%{opacity:0}}
/* captured badge */
.captured{display:flex;align-items:center;gap:10px;background:var(--light);color:var(--navy);font-weight:600;font-size:14px;padding:10px 16px}
.captured[hidden]{display:none}
.captured img{width:34px;height:34px;object-fit:cover;border-radius:8px}
/* perks */
.perks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.perks li{display:flex;gap:14px;align-items:flex-start;line-height:1.45}
.perks b{flex:0 0 32px;height:32px;border-radius:50%;background:var(--light);color:var(--navy);display:flex;align-items:center;justify-content:center;font-weight:900}
/* form */
form label{display:flex;flex-direction:column;gap:6px;font-weight:400;font-size:14px;color:var(--deep)}
.opt{color:var(--muted);font-weight:300}
input:not([type=checkbox]){font:400 17px Inter,system-ui,sans-serif;padding:14px;border:1.5px solid #cfd6e4;border-radius:12px;background:#fff;color:var(--deep);width:100%;outline:none}
input:focus{border-color:var(--navy);box-shadow:0 0 0 3px var(--light)}
input.bad{border-color:var(--err)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label.check{flex-direction:row;align-items:flex-start;gap:12px;font-weight:300;line-height:1.45;background:var(--light);padding:14px;border-radius:12px}
label.check input{width:22px;height:22px;flex:0 0 22px;margin:1px 0 0;accent-color:var(--navy)}
label.check.bad{outline:1.5px solid var(--err)}
.form-error{color:var(--err);font-weight:400;font-size:14px}
.howto{font-size:14px;line-height:1.5;color:var(--deep);background:var(--light);border-radius:12px;padding:12px 14px}
.howto:empty{display:none}
.check-badge{width:84px;height:84px;border-radius:50%;background:var(--light);color:var(--navy);display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.check-badge svg{width:44px;height:44px}
.ref{font-size:13px;color:var(--light);opacity:.8;margin-top:18px}
label.check.optional{background:#f4f6fa}
/* marker version */
.hero-marker{position:absolute;right:-30px;top:52px;width:180px;height:180px;transform:rotate(-8deg);filter:drop-shadow(0 10px 24px rgba(0,0,0,.35))}
#s-landing h1{margin-top:110px}
.how{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.how li{display:flex;gap:14px;align-items:flex-start;line-height:1.45;font-size:16px}
.how b{flex:0 0 32px;height:32px;border-radius:50%;background:var(--light);color:var(--navy);display:flex;align-items:center;justify-content:center;font-weight:900}
.scan-target{position:absolute;left:50%;top:47%;width:66vw;max-width:340px;aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50%;border:4px dashed rgba(255,255,255,.85);overflow:hidden;pointer-events:none}
.scan-target img{width:100%;height:100%;opacity:.16}
.scan-target .sweep{position:absolute;left:0;right:0;height:30%;top:-30%;background:linear-gradient(transparent,rgba(222,242,255,.45),transparent);animation:sweep 2.2s linear infinite}
@keyframes sweep{to{top:100%}}
.status{display:flex;align-items:center;justify-content:center;gap:10px;color:#fff;font-weight:400}
.spinner{width:18px;height:18px;border-radius:50%;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.link-btn{appearance:none;background:none;border:0;color:var(--light);font:600 16px Inter,system-ui,sans-serif;text-decoration:underline;padding:8px;cursor:pointer}
.link-btn.dark{color:var(--muted);font-weight:400;font-size:14px}
.link-btn[hidden]{display:none}
.found{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;opacity:0}
.found div{background:var(--light);color:var(--navy);font-weight:900;font-size:22px;padding:14px 22px;border-radius:99px}
.found.go{animation:found .6s ease forwards}
@keyframes found{0%{opacity:0;transform:scale(.9)}40%{opacity:1;transform:scale(1)}100%{opacity:1}}
.sheet{position:absolute;left:0;right:0;bottom:0;background:#fff;border-radius:22px 22px 0 0;padding:22px 22px calc(22px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:12px;color:var(--deep);box-shadow:0 -10px 30px rgba(0,0,0,.3)}
.sheet[hidden]{display:none}
.sheet h3{margin:0;font-weight:900;font-size:22px}
.sheet ul{margin:0;padding-left:20px;line-height:1.5;display:flex;flex-direction:column;gap:4px}
.sheet .btn.primary{margin-top:6px}