* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #090d16;
  color: #f1f5f9;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
header h1, h1 {
  font-size: 1.85rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
  text-align: center;
}
section, body > * {
  text-align: center;
}
img {
  display: block;
  margin: 0 auto 1.5rem;
  max-width: 140px;
  filter: drop-shadow(0 10px 25px rgba(0, 120, 212, 0.3));
}
form, body {
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 16px;
  padding: 2.5rem;
  max-width: 440px;
  width: 100%;
  box-shadow: 0 20px 40px -15px rgba(0,0,0,0.5);
}
label {
  display: block;
  font-size: 0.875rem;
  color: #94a3b8;
  margin-bottom: 0.75rem;
}
input[type="text"] {
  width: 100%;
  background: #0f172a;
  border: 1px solid #334155;
  color: #ffffff;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  font-size: 0.95rem;
  outline: none;
  margin-bottom: 1rem;
  transition: border-color 0.2s;
}
input[type="text"]:focus {
  border-color: #38bdf8;
}
button, a {
  display: inline-block;
  width: 100%;
  padding: 0.65rem 1.25rem;
  background: linear-gradient(135deg, #0284c7, #2563eb);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.1s;
}
button:hover, a:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}
p {
  color: #94a3b8;
  font-size: 1rem;
  margin-bottom: 1.5rem;
}