:root{
  --blue:#0b4fb3;
  --bg:#f5f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e2e8f0;
  --danger:#dc2626;
  --shadow: 0 10px 30px rgba(2,6,23,.08);
  --radius:16px;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  color:var(--text);
  background:var(--bg);
}

.hidden{display:none !important}
.center{text-align:center}
.small{font-size:12px}
.mt8{margin-top:8px}
.mt12{margin-top:12px}
.mt16{margin-top:16px}
.grow{flex:1}
.gap8{gap:8px}

.header{
  position:sticky; top:0;
  background:var(--blue);
  color:#fff;
  padding:12px 14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  z-index:10;
}
.brand{display:flex; align-items:center; gap:10px}
.brand-logo{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.15);object-fit:contain}
.brand-title{font-weight:800}
.brand-sub{font-size:12px;opacity:.9}

.header-actions{display:flex; align-items:center; gap:10px}
.icon-btn{
  border:none;
  background:rgba(255,255,255,.15);
  color:#fff;
  padding:10px 12px;
  border-radius:12px;
  cursor:pointer;
}
.net-dot{
  width:10px;height:10px;border-radius:999px;
  background:#9ca3af; display:inline-block;
}

.main{padding:14px; padding-bottom:90px}

.screen{max-width:1100px;margin:0 auto}
.screen-center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:18px}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow);
}

.login-card{width:min(460px,100%)}
.login-logo{display:flex;justify-content:center}
.login-logo img{width:92px;height:92px;object-fit:contain}
.login-title{margin:10px 0 0 0;text-align:center;font-size:42px;letter-spacing:.5px}

.muted{color:var(--muted)}
.msg{margin-top:10px;padding:10px;border-radius:12px;border:1px solid var(--border);background:#fff}
.msg.error{border-color:#fecaca;background:#fff1f2;color:var(--danger)}
.msg.ok{border-color:#bbf7d0;background:#f0fdf4;color:#166534}

.h1{font-size:28px;font-weight:900;margin:6px 0}
.h2{font-size:18px;font-weight:900;margin:0}

.label{display:block;font-weight:800;margin-top:10px;margin-bottom:6px}
.input{
  width:100%;
  border:1px solid var(--border);
  border-radius:12px;
  padding:12px 12px;
  font-size:16px;
  outline:none;
  background:#fff;
}
.input:focus{border-color:#93c5fd}

.btn{
  border:none;
  border-radius:14px;
  padding:12px 14px;
  font-weight:900;
  cursor:pointer;
  background:#e2e8f0;
}
.btn-primary{background:#1d4ed8;color:#fff}
.btn-ghost{background:transparent;border:1px solid var(--border)}
.btn-full{width:100%}

.grid3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
}
@media (max-width:720px){
  .grid3{grid-template-columns:1fr}
}

.kpi{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
  text-align:center;
}
.kpi-num{font-size:32px;font-weight:900}
.kpi-label{color:var(--muted)}

.list{display:flex;flex-direction:column;gap:10px}
.item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:12px;
  box-shadow:var(--shadow);
  cursor:pointer;
}
.item-title{font-weight:900}
.item-sub{color:var(--muted);font-size:13px;margin-top:4px}

.row{display:flex;align-items:center}
.between{justify-content:space-between}
.totals{
  min-width:210px;
  text-align:right;
  padding-left:12px;
}

.nav{
  position:fixed; left:0; right:0; bottom:0;
  background:var(--card);
  border-top:1px solid var(--border);
  display:flex;
  justify-content:space-around;
  padding:10px 6px;
  z-index:20;
}
.nav-item{
  background:transparent;border:none;cursor:pointer;
  display:flex;flex-direction:column;gap:4px;
  align-items:center;
  color:var(--muted);
  font-weight:900;
}
.nav-item.active{color:#1d4ed8}
.nav-item span{font-size:12px}

.modal{
  position:fixed; inset:0;
  background:rgba(15,23,42,.45);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:16px;
  z-index:30;
}
.modal-card{
  width:min(520px,100%);
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow);
}