:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --ink:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --accent:#111827;
  --danger:#b91c1c;
  --ok:#047857;
  --warn:#b45309;
  --soft:#f3f4f6;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:var(--bg);
  color:var(--ink);
}
#app{max-width:980px;margin:0 auto;min-height:100vh;background:var(--bg)}
.topbar{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{font-weight:800;font-size:18px;letter-spacing:-.02em}
.subbrand{font-size:12px;color:var(--muted);margin-top:2px}
main{padding:16px 16px 86px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  padding:16px;margin-bottom:14px;box-shadow:0 6px 22px rgba(17,24,39,.04);
}
.card.compact{padding:12px}
h1,h2,h3{margin:0 0 10px;letter-spacing:-.03em}
h1{font-size:25px}
h2{font-size:20px}
h3{font-size:16px}
p{line-height:1.5;color:var(--muted)}
label{display:block;font-size:12px;font-weight:700;color:#374151;margin:12px 0 7px}
input,select,textarea{
  width:100%;border:1px solid #d1d5db;border-radius:12px;padding:13px 12px;
  font-size:15px;background:white;color:var(--ink);outline:none;
}
input:focus,select:focus,textarea:focus{border-color:#111827;box-shadow:0 0 0 3px rgba(17,24,39,.08)}
button,.btn{
  border:0;border-radius:13px;padding:13px 14px;background:var(--accent);color:white;
  font-weight:800;font-size:14px;cursor:pointer;text-decoration:none;display:inline-flex;justify-content:center;align-items:center;gap:8px;
}
button.full,.btn.full{width:100%}
button.secondary,.btn.secondary{background:#eef2ff;color:#111827}
button.ghost,.btn.ghost{background:transparent;color:#111827;border:1px solid var(--line)}
button.danger{background:var(--danger)}
button.ok{background:var(--ok)}
button.small,.btn.small{padding:8px 10px;border-radius:10px;font-size:12px}
.grid{display:grid;gap:12px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.row{display:flex;gap:10px;align-items:center}
.row > *{flex:1}
.kpi{background:#111827;color:white;border-radius:18px;padding:16px}
.kpi .label{font-size:12px;color:#d1d5db}
.kpi .value{font-size:23px;font-weight:900;margin-top:5px;letter-spacing:-.03em}
.stat{border:1px solid var(--line);border-radius:14px;padding:13px;background:white}
.stat .label{font-size:12px;color:var(--muted)}
.stat .value{font-size:18px;font-weight:900;margin-top:4px}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800;background:var(--soft);color:#374151}
.badge.ok{background:#d1fae5;color:#065f46}
.badge.warn{background:#fef3c7;color:#92400e}
.badge.danger{background:#fee2e2;color:#991b1b}
.list{display:grid;gap:10px;margin-top:10px}
.item{border:1px solid var(--line);border-radius:14px;padding:12px;background:white}
.item .title{font-weight:900}
.item .meta{font-size:12px;color:var(--muted);margin-top:4px}
.divider{height:1px;background:var(--line);margin:14px 0}
.muted{color:var(--muted)}
.money{font-weight:900;letter-spacing:-.03em}
.notice{padding:12px;border-radius:14px;background:#fffbeb;border:1px solid #fde68a;color:#92400e;font-size:13px}
.success{padding:12px;border-radius:14px;background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46;font-size:13px}
.error{padding:12px;border-radius:14px;background:#fef2f2;border:1px solid #fecaca;color:#991b1b;font-size:13px}
.bottom-nav{
  position:fixed;left:50%;transform:translateX(-50%);bottom:0;z-index:20;
  width:min(980px,100vw);display:flex;gap:8px;background:rgba(255,255,255,.96);
  border-top:1px solid var(--line);padding:8px 10px 10px;backdrop-filter:blur(10px);
}
.bottom-nav button{flex:1;background:white;color:#111827;border:1px solid var(--line);font-size:12px;padding:10px 8px}
.bottom-nav button.active{background:#111827;color:white}
.login-wrap{
  min-height:100vh;display:grid;place-items:center;padding:18px;background:linear-gradient(135deg,#111827,#374151);
}
.login-card{width:min(420px,100%);background:white;border-radius:24px;padding:22px;box-shadow:0 28px 80px rgba(0,0,0,.22)}
.logo-mark{width:48px;height:48px;border-radius:15px;background:#111827;color:white;display:grid;place-items:center;font-weight:900;margin-bottom:12px}
.code-box{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:900;letter-spacing:.08em}
.copy-area{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;min-height:160px}
@media(max-width:720px){
  .grid.two,.grid.three{grid-template-columns:1fr}
  .topbar{padding:14px}
  main{padding:14px 14px 88px}
}

.qr-wrap{
  display:grid;
  place-items:center;
  gap:10px;
  border:1px dashed var(--line);
  border-radius:18px;
  padding:16px;
  background:#fff;
  margin:12px 0;
}
.qr-img{
  width:260px;
  max-width:100%;
  height:auto;
  border-radius:12px;
  border:1px solid var(--line);
}
.approval-alert{
  background:#fff7ed;
  border:2px solid #fb923c;
  color:#9a3412;
  border-radius:18px;
  padding:16px;
  margin-bottom:12px;
}
.approval-alert .big-money{
  color:#111827;
  font-size:32px;
  font-weight:900;
  letter-spacing:-.04em;
  margin:8px 0;
}

button:disabled{
  opacity:.45;
  cursor:not-allowed;
}