:root{
  --ov-primary:#2563eb;
  --ov-text:#111827;
  --ov-muted:#6b7280;
  --ov-border:#e5e7eb;
  --ov-radius:12px;
  --ov-shadow:0 8px 24px rgba(0,0,0,.08);
  --ov-font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:var(--ov-font); color:var(--ov-text); background:#fff;
}
.btn{
  background:var(--ov-primary); color:#fff; border:0; border-radius:10px;
  padding:10px 12px; font-weight:600; cursor:pointer; transition:.2s background;
}
.btn:hover{ background:#1e4ed8; }
.input{
  width:100%; padding:10px 12px; border:1px solid var(--ov-border);
  border-radius:10px; font-size:.95rem; outline:none; transition:border-color .2s;
}
.input:focus{ border-color:var(--ov-primary); }
.card{ background:#fff; border-radius:var(--ov-radius); box-shadow:var(--ov-shadow); }
.small{ font-size:.85rem; color:var(--ov-muted); }
.logo-word{ font-weight:700; color:var(--ov-primary); letter-spacing:.2px; }
.alert{
  width:100%; border:1px solid #fecaca; background:#fff1f2; color:#b91c1c;
  padding:10px 12px; border-radius:10px; margin-bottom:10px; font-size:.9rem;
}