/* QC SCAN — premium dark UI */
*,*::before,*::after{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#05070f; --card:rgba(20,25,40,.72); --line:rgba(120,150,200,.16);
  --txt:#e8eefc; --dim:#93a1bf; --acc:#22d3ee; --acc2:#7c5cff;
  --ok:#25e08a; --warn:#ffb020; --err:#ff5d6c;
  --r:20px;
}
html,body{margin:0;min-height:100%}
body{
  background:var(--bg); color:var(--txt); overflow-x:hidden;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;
  padding-bottom:env(safe-area-inset-bottom);
}
.hidden{display:none!important}
.grow{flex:1}
.small{font-size:12.5px}
.err{color:var(--err)}

/* aurora bg */
.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;filter:blur(60px);opacity:.55}
.aurora span{position:absolute;width:60vw;height:60vw;border-radius:50%;animation:float 18s ease-in-out infinite}
.aurora span:nth-child(1){background:#0ea5e9;top:-18vw;left:-12vw}
.aurora span:nth-child(2){background:#7c3aed;bottom:-22vw;right:-16vw;animation-delay:-6s}
.aurora span:nth-child(3){background:#059669;top:35vh;left:40vw;width:38vw;height:38vw;animation-delay:-11s;opacity:.6}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(4vw,-5vh) scale(1.15)}}

/* header */
.hdr{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:calc(12px + env(safe-area-inset-top)) 16px 12px;
  position:sticky;top:0;z-index:20;
  background:linear-gradient(180deg,rgba(5,7,15,.94),rgba(5,7,15,.55) 70%,transparent);
  backdrop-filter:blur(14px);
}
.hdr-left{display:flex;align-items:center;gap:11px;min-width:0}
.logo{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--acc),var(--acc2));color:#04101a;
  box-shadow:0 8px 22px rgba(34,211,238,.28)
}
.logo svg{width:23px;height:23px}
.hdr h1{margin:0;font-size:19px;letter-spacing:.6px;font-weight:800}
.sub{margin:2px 0 0;font-size:11.5px;color:var(--dim)}
.sub b{color:var(--acc)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--dim);box-shadow:0 0 0 4px rgba(255,255,255,.04)}
.dot.on{background:var(--ok);box-shadow:0 0 0 4px rgba(37,224,138,.16)}
.dot.off{background:var(--err);box-shadow:0 0 0 4px rgba(255,93,108,.16)}

/* layout */
.wrap{max-width:520px;margin:0 auto;padding:4px 14px 30px;display:flex;flex-direction:column;gap:14px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px;
  backdrop-filter:blur(12px);box-shadow:0 14px 40px rgba(0,0,0,.35)
}

/* camera */
.camera{position:relative;border-radius:16px;overflow:hidden;background:#0a0e1a;min-height:230px;display:grid;place-items:center}
#reader{width:100%;min-height:230px}
#reader video{width:100%!important;border-radius:16px;display:block;object-fit:cover}
.cam-hint{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:6px;
  color:var(--dim);font-size:13px;text-align:center;pointer-events:none}
.cam-ico{font-size:34px;opacity:.8}
.corners{position:absolute;inset:10px;pointer-events:none}
.corners i{position:absolute;width:30px;height:30px;border:3px solid var(--acc);border-radius:5px;opacity:.9}
.corners i:nth-child(1){top:0;left:0;border-right:0;border-bottom:0}
.corners i:nth-child(2){top:0;right:0;border-left:0;border-bottom:0}
.corners i:nth-child(3){bottom:0;left:0;border-right:0;border-top:0}
.corners i:nth-child(4){bottom:0;right:0;border-left:0;border-top:0}
.laser{position:absolute;left:8%;right:8%;height:3px;border-radius:3px;
  background:linear-gradient(90deg,transparent,var(--acc),transparent);
  box-shadow:0 0 14px var(--acc);animation:scan 2.1s ease-in-out infinite}
@keyframes scan{0%{top:12%}50%{top:86%}100%{top:12%}}

/* buttons */
.btn{
  border:0;border-radius:14px;padding:14px 16px;font-size:15px;font-weight:700;
  color:#eaf2ff;background:rgba(255,255,255,.07);cursor:pointer;
  transition:transform .07s ease,filter .15s ease,box-shadow .15s;
  display:flex;align-items:center;justify-content:center;gap:7px;min-height:48px
}
.btn:active{transform:scale(.975)}
.btn-primary{background:linear-gradient(135deg,var(--acc),#0ea5e9);color:#04141c;box-shadow:0 8px 24px rgba(34,211,238,.25)}
.btn-accent{background:linear-gradient(135deg,var(--acc2),#c026d3);color:#fff;box-shadow:0 8px 24px rgba(124,92,255,.28)}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--txt)}
.row{display:flex;gap:9px;margin-top:10px}
.input{
  width:100%;padding:14px;border-radius:14px;font-size:16px;min-height:48px;
  background:rgba(6,10,20,.7);border:1px solid var(--line);color:var(--txt);outline:none
}
.input:focus{border-color:var(--acc);box-shadow:0 0 0 3px rgba(34,211,238,.14)}
.divider{display:flex;align-items:center;gap:10px;margin:16px 0 4px;color:var(--dim);font-size:11px;letter-spacing:.5px;text-transform:uppercase}
.divider::before,.divider::after{content:"";height:1px;flex:1;background:var(--line)}
.chk{display:flex;align-items:center;gap:9px;margin-top:13px;font-size:12.3px;color:var(--dim)}
.chk input{width:17px;height:17px;accent-color:var(--acc)}

/* status */
.status-card{display:grid;justify-items:center;text-align:center;gap:6px;animation:fade .25s ease}
.spinner{display:flex;gap:6px;margin-bottom:6px}
.spinner i{width:11px;height:11px;border-radius:50%;background:var(--acc);animation:bounce 1.1s infinite}
.spinner i:nth-child(2){animation-delay:.15s;background:var(--acc2)}
.spinner i:nth-child(3){animation-delay:.3s;background:var(--ok)}
@keyframes bounce{0%,80%,100%{transform:translateY(0);opacity:.5}40%{transform:translateY(-9px);opacity:1}}
.st-title{font-weight:700;font-size:15px}
.st-meta{color:var(--dim);font-size:12.5px}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* result */
.result-card{animation:slide .3s cubic-bezier(.22,1,.36,1)}
@keyframes slide{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.res-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:10px}
.res-badge{display:inline-block;font-size:10px;font-weight:800;letter-spacing:1px;padding:4px 8px;border-radius:7px;
  background:rgba(37,224,138,.16);color:var(--ok);margin-bottom:6px}
.res-badge.fail{background:rgba(255,93,108,.16);color:var(--err)}
.res-num{font-size:17px;font-weight:800;color:var(--acc);word-break:break-all;line-height:1.25}
.res-meta{font-size:11px;color:var(--dim);text-align:right;white-space:nowrap}
pre{
  margin:0;padding:12px;border-radius:13px;background:rgba(4,8,18,.82);border:1px solid var(--line);
  white-space:pre-wrap;word-break:break-word;font-size:13px;line-height:1.55;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;max-height:46vh;overflow:auto
}

/* history */
.hist-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.hist-head h3{margin:0;font-size:14.5px;letter-spacing:.3px}
.hist-actions{display:flex;gap:7px}
.mini{background:rgba(255,255,255,.07);border:1px solid var(--line);color:var(--txt);border-radius:10px;
  padding:6px 11px;font-size:12px;font-weight:600;cursor:pointer}
.mini.danger{color:var(--err);border-color:rgba(255,93,108,.3)}
.hist-list{display:flex;flex-direction:column;gap:8px;max-height:46vh;overflow:auto}
.hist-item{display:flex;gap:10px;align-items:center;padding:10px 11px;border-radius:13px;
  background:rgba(255,255,255,.035);border:1px solid var(--line);cursor:pointer}
.hist-item:active{background:rgba(255,255,255,.08)}
.hi-ico{width:30px;height:30px;flex:0 0 30px;border-radius:9px;display:grid;place-items:center;font-size:14px;
  background:rgba(34,211,238,.14)}
.hi-ico.fail{background:rgba(255,93,108,.14)}
.hi-body{min-width:0;flex:1}
.hi-top{font-weight:700;font-size:13.5px;display:flex;justify-content:space-between;gap:8px}
.hi-time{color:var(--dim);font-size:11px;font-weight:500;white-space:nowrap}
.hi-sub{color:var(--dim);font-size:11.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.empty{color:var(--dim);font-size:13px;text-align:center;padding:18px 0}

/* lock */
.lock{position:fixed;inset:0;z-index:80;background:rgba(4,6,14,.94);backdrop-filter:blur(18px);
  display:grid;place-items:center;padding:22px}
.lock-card{width:100%;max-width:330px;text-align:center;display:grid;gap:11px;
  background:var(--card);border:1px solid var(--line);border-radius:24px;padding:26px 20px}
.brand-mark{width:56px;height:56px;margin:0 auto;border-radius:18px;display:grid;place-items:center;font-size:26px;
  background:linear-gradient(140deg,var(--acc),var(--acc2));color:#04101a}
.lock-card h2{margin:0;font-size:20px;letter-spacing:1px}
.lock-card p{margin:0;color:var(--dim);font-size:13px}
.lock-card input{width:100%;padding:14px;border-radius:14px;text-align:center;letter-spacing:8px;font-size:20px;
  background:rgba(6,10,20,.7);border:1px solid var(--line);color:var(--txt);outline:none}

/* toast */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,120%);z-index:95;
  background:rgba(15,22,38,.96);border:1px solid var(--line);color:var(--txt);padding:12px 18px;border-radius:14px;
  font-size:13.5px;font-weight:600;box-shadow:0 12px 34px rgba(0,0,0,.5);transition:transform .28s cubic-bezier(.22,1,.36,1)}
.toast.show{transform:translate(-50%,0)}
.ftr{text-align:center;color:var(--dim);font-size:11px;padding:6px 0 10px;line-height:1.6}
.install-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:linear-gradient(135deg,rgba(34,211,238,.14),rgba(124,92,255,.14));
  border:1px solid rgba(34,211,238,.3);border-radius:14px;padding:10px 12px;font-size:13px;font-weight:600}
.install-bar .mini{background:linear-gradient(135deg,var(--acc),#0ea5e9);color:#04141c;border:0}