:root{
  --bg:#0b1220;
  --card:#121b2e;
  --text:#eaf0ff;
  --muted:#b7c2e2;
  --accent:#4f8cff;
  --danger:#ff4f6d;
  --border:rgba(255,255,255,.12);
}

body{
  margin:0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, var(--bg), #070b14);
  color: var(--text);
}

.container{
  max-width: 860px;
  margin: 0 auto;
  padding: 18px;
}

.card{
  background: rgba(18,27,46,.9);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}

.header{
  display:flex;
  gap:16px;
  align-items:center;
  flex-wrap:wrap;
}

.logo{
  width:72px;
  height:72px;
  object-fit:contain;
}

h1{
  margin:0;
  font-size: 20px;
  line-height:1.2;
}

p{
  color: var(--muted);
  line-height:1.5;
}

.btn{
  display:inline-block;
  border:1px solid rgba(255,255,255,.15);
  background: var(--accent);
  color:#07111f;
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: bold;
  text-decoration:none;
  cursor:pointer;
}

.btn:active{ transform: translateY(1px); }

.form-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}

@media(min-width: 760px){
  .form-grid{ grid-template-columns: 1fr 1fr; }
  .span-2{ grid-column: 1 / -1; }
}

label{
  display:block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}

input, select{
  width:100%;
  box-sizing:border-box;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
  color: var(--text);
  outline:none;
}

input::placeholder{ color: rgba(234,240,255,.45); }

.error{
  color: var(--danger);
  margin-top: 10px;
  font-weight: bold;
}

.success{
  color: #58ff9b;
  margin-top: 10px;
  font-weight: bold;
}