:root{
  --green:#005230;
  --green-2:#0b6b42;
  --orange:#fd8102;
  --white:#ffffff;
  --text:#17211c;
  --muted:#6b776f;
  --line:#dfe7e2;
  --soft:#f5f8f6;
  --danger:#b42318;
  --warning:#a45b00;
  --shadow:0 10px 28px rgba(0,55,31,.09);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:#fff;color:var(--text);font-family:Inter,Segoe UI,Roboto,Arial,sans-serif}
body{padding-bottom:86px}
button,input,select{font:inherit}
button{cursor:pointer}
button:disabled{opacity:.5;cursor:not-allowed}
.topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;background:#fff;border-bottom:1px solid var(--line)
}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo-wrap{
  width:44px;height:44px;display:grid;place-items:center;flex:0 0 44px;
}
.brand-logo{
  width:44px;height:44px;object-fit:contain;display:block;
}
.brand strong{display:block;color:var(--green);font-size:16px;line-height:1.05}
.brand span{display:block;color:var(--orange);font-weight:800;font-size:12px}
.top-actions{display:flex;gap:8px;align-items:center}
.icon-btn{border:0;background:var(--soft);border-radius:11px;min-width:42px;height:42px;font-size:20px}
.net-badge{border:0;border-radius:999px;padding:8px 11px;font-size:12px;font-weight:800}
.net-badge.online{background:#e6f5ec;color:var(--green)}
.net-badge.offline{background:#fff2dd;color:#9a5600}
main{max-width:760px;margin:0 auto;padding:18px 14px}
.view{display:none}
.view.active{display:block}
.station-head{display:flex;justify-content:space-between;align-items:flex-start;gap:15px;margin-bottom:18px}
.eyebrow{font-size:11px;font-weight:900;color:var(--orange);letter-spacing:.08em;margin:0 0 5px}
h1,h2,h3,p{margin-top:0}
h1{font-size:25px;margin-bottom:4px}
h2{font-size:22px}
.muted{color:var(--muted)}
.small{font-size:12px}
.center{text-align:center}
.clock{color:var(--green);font-size:24px;font-weight:900}
.scan-card,.form-card{
  border:1px solid var(--line);border-radius:20px;background:#fff;padding:22px;
  box-shadow:var(--shadow);margin-bottom:16px
}
.scan-card{text-align:center;padding-top:30px;padding-bottom:30px}
.scan-icon{
  width:84px;height:84px;margin:0 auto 16px;border-radius:26px;
  display:grid;place-items:center;background:#e9f4ee;color:var(--green);
  font-size:44px;font-weight:900
}
.scan-card h2{margin-bottom:8px}
.primary,.secondary,.danger-outline{
  width:100%;border-radius:13px;padding:13px 16px;font-weight:800;margin-top:10px;
  min-height:48px
}
.primary{border:1px solid var(--green);background:var(--green);color:#fff}
.primary:active{background:var(--green-2)}
.secondary{border:1px solid var(--green);background:#fff;color:var(--green)}
.danger-outline{border:1px solid #f1b8b3;background:#fff;color:var(--danger)}
.compact{width:auto;min-height:40px;padding:9px 13px;margin:0}
.camera-panel{
  position:relative;border-radius:20px;overflow:hidden;background:#0c1510;
  border:1px solid var(--line);margin-bottom:16px
}
.camera-panel video{width:100%;max-height:480px;display:block;object-fit:cover;background:#000}
.scanner-frame{
  position:absolute;left:18%;right:18%;top:24%;height:36%;
  border:3px solid var(--orange);border-radius:20px;pointer-events:none
}
.camera-actions{padding:12px;background:#fff}
.camera-help{padding:0 12px 14px;background:#fff;margin:0}
.hidden{display:none!important}
.result-panel{
  border-radius:20px;padding:24px;margin-bottom:16px;text-align:center;
  border:1px solid var(--line);box-shadow:var(--shadow)
}
.result-panel.success{background:#f1faf5}
.result-panel.warning{background:#fff8ec}
.result-panel.error{background:#fff3f2}
.result-check{
  width:70px;height:70px;border-radius:50%;margin:0 auto 12px;
  display:grid;place-items:center;color:#fff;background:var(--green);font-size:36px;font-weight:900
}
.result-panel.warning .result-check{background:var(--orange)}
.result-panel.error .result-check{background:var(--danger)}
.result-name{font-size:23px;font-weight:900;margin-bottom:4px}
.result-time{font-size:28px;font-weight:900;color:var(--green);margin:10px 0}
.stats-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px
}
.stats-strip div{background:var(--soft);border:1px solid var(--line);border-radius:15px;padding:14px 8px;text-align:center}
.stats-strip strong{display:block;font-size:24px;color:var(--green)}
.stats-strip span{display:block;font-size:11px;color:var(--muted);margin-top:3px}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.section-title h2{margin-bottom:0}
.searchbox{margin-bottom:12px}
.searchbox input,.form-card input,.form-card select,.dialog-card input{
  width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;
  color:var(--text);outline:none
}
.searchbox input:focus,.form-card input:focus,.form-card select:focus,.dialog-card input:focus{border-color:var(--green)}
.list{display:flex;flex-direction:column;gap:10px}
.list-item{
  border:1px solid var(--line);border-radius:16px;padding:14px;background:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:12px
}
.student-main{display:flex;gap:12px;align-items:center;min-width:0}
.avatar{
  width:48px;height:48px;flex:0 0 48px;border-radius:50%;display:grid;place-items:center;
  background:#e8f3ed;color:var(--green);font-weight:900;font-size:18px
}
.student-text{min-width:0}
.student-text strong{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.student-text span{font-size:12px;color:var(--muted)}
.item-action{
  border:1px solid var(--green);color:var(--green);background:#fff;border-radius:10px;padding:8px 10px;font-weight:800
}
.history-status{font-size:11px;font-weight:900;padding:6px 9px;border-radius:999px}
.history-status.present{background:#e8f6ee;color:var(--green)}
.history-status.late{background:#fff0da;color:var(--warning)}
.form-card{display:flex;flex-direction:column;gap:14px}
.form-card label,.dialog-card label{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:800}
.bottom-nav{
  position:fixed;z-index:55;left:0;right:0;bottom:0;background:#fff;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);padding:7px max(8px,env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left))
}
.nav-btn{
  border:0;background:transparent;color:var(--muted);padding:5px 3px;
  font-size:11px;font-weight:800;min-height:56px;border-radius:12px
}
.nav-btn span{display:block;font-size:21px;margin-bottom:3px}
.nav-btn.active{color:var(--green);background:#eef7f2}
dialog{border:0;border-radius:20px;padding:0;width:min(92vw,520px);box-shadow:0 30px 80px rgba(0,0,0,.25)}
dialog::backdrop{background:rgba(0,0,0,.45)}
.dialog-card{padding:18px;margin:0;display:flex;flex-direction:column;gap:13px}
.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.dialog-head h3{margin:0}
.empty{padding:30px 15px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:16px}
@media(min-width:700px){
  body{padding-bottom:95px}
  main{padding-top:28px}
  .scan-card{padding:40px}
}

.scan-logo{
  width:68px;
  height:68px;
  object-fit:contain;
  display:block;
  margin:0 auto 14px;
}


.toast-container{
  position:fixed;
  top:84px;
  right:14px;
  left:14px;
  z-index:1200;
  display:flex;
  flex-direction:column;
  gap:10px;
  pointer-events:none;
}
.toast{
  pointer-events:auto;
  border-radius:18px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:0 16px 40px rgba(0,55,31,.16);
  padding:14px 16px;
  display:flex;
  gap:12px;
  align-items:flex-start;
  animation:toastIn .22s ease;
}
.toast.success{background:#f1faf5;border-color:#cfe7d7}
.toast.warning{background:#fff8ec;border-color:#f6d8a6}
.toast.error{background:#fff3f2;border-color:#efc0bc}
.toast.info{background:#f6faf8;border-color:#d7e5dd}
.toast-icon{
  width:38px;height:38px;flex:0 0 38px;border-radius:50%;
  display:grid;place-items:center;font-weight:900;color:#fff;font-size:18px
}
.toast.success .toast-icon{background:var(--green)}
.toast.warning .toast-icon{background:var(--orange)}
.toast.error .toast-icon{background:var(--danger)}
.toast.info .toast-icon{background:var(--green-2)}
.toast-body{min-width:0}
.toast-title{font-size:14px;font-weight:900;margin:0 0 3px}
.toast-text{font-size:13px;color:var(--muted);margin:0}
.toast-close{
  margin-left:auto;border:0;background:transparent;color:var(--muted);
  font-size:18px;line-height:1;padding:4px;min-width:auto;height:auto
}
.confirm-actions{
  display:flex;
  justify-content:flex-end;
  gap:10px;
  margin-top:6px;
}
@keyframes toastIn{
  from{opacity:0;transform:translateY(-10px) scale(.98)}
  to{opacity:1;transform:translateY(0) scale(1)}
}
@media(min-width:700px){
  .toast-container{
    left:auto;
    width:min(420px, calc(100vw - 28px));
  }
}