@font-face{
  font-family: Vazir;
  src: local("Vazirmatn"), local("Vazir");
}
*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: Vazir, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background:#0b1220;
  color:#0b1220;
}
.split{
  min-height:100vh;
  display:grid;
  grid-template-columns: 1fr 1fr;
}
.brand{
  background: linear-gradient(135deg, #0b5cff, #0a2e8a);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px;
}
.brand-inner{
  text-align:center;
  max-width:420px;
}
.logo{
  width:90px;height:90px;
  border-radius:22px;
  background: rgba(255,255,255,.15);
  padding:12px;
  object-fit:contain;
  margin-bottom:14px;
}
.brand h1{ margin:8px 0 6px; font-size:40px; }
.brand p{ margin:0; opacity:.9; font-size:16px; }

.panel{
  background:#0b1220;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px;
}
.card{
  width:min(460px, 92vw);
  background:#ffffff;
  border-radius:20px;
  padding:18px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.tabs{
  display:flex;
  gap:10px;
  background:#f3f6ff;
  padding:8px;
  border-radius:14px;
  margin-bottom:14px;
}
.tab{
  flex:1;
  border:0;
  padding:10px 12px;
  border-radius:12px;
  background:transparent;
  cursor:pointer;
  font-weight:700;
}
.tab.active{
  background:#0b5cff;
  color:#fff;
}
.tab-content{ display:none; }
.tab-content.show{ display:block; }

h2{ margin:10px 0 14px; }
.form label{ display:block; font-size:13px; color:#334155; margin:10px 0 6px; }
.form input, .form select{
  width:100%;
  padding:12px 12px;
  border:1px solid #e2e8f0;
  border-radius:12px;
  outline:none;
  font-size:14px;
}
.form input:focus, .form select:focus{ border-color:#0b5cff; box-shadow: 0 0 0 3px rgba(11,92,255,.15); }
.row{ display:grid; grid-template-columns:1fr 1fr; gap:10px; }

.btn{
  width:100%;
  margin-top:14px;
  padding:12px 14px;
  border:0;
  border-radius:12px;
  background:#0b5cff;
  color:#fff;
  font-weight:800;
  cursor:pointer;
}
.alert{
  padding:10px 12px;
  border-radius:12px;
  font-size:13px;
  margin-bottom:10px;
}
.alert-danger{
  background:#ffe4e6;
  color:#9f1239;
}

/* --- Error UI --- */
.field-error{
  margin-top:6px;
  font-size:12px;
  color:#dc2626;
  min-height:16px;
}
.input-error{
  border-color:#dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220,38,38,.15) !important;
}

@media (max-width: 900px){
  .split{ grid-template-columns:1fr; }
  .brand{ min-height:260px; }
}