:root {
  font-family: "Segoe UI", Arial, sans-serif;
  background: #eef2f7;
  color: #172033;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    linear-gradient(rgba(10, 22, 40, 0.72), rgba(10, 22, 40, 0.6)),
    url("https://images.unsplash.com/photo-1497366811353-6870744d04b2?auto=format&fit=crop&w=1800&q=80") center/cover;
}

main {
  width: min(900px, calc(100vw - 32px));
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  background: rgba(255,255,255,0.94);
  border: 1px solid rgba(255,255,255,0.55);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0,0,0,0.25);
}

.brand {
  padding: 42px;
  background: #111827;
  color: #fff;
}

.brand p {
  color: #f7c948;
  font-weight: 800;
}

.brand h1 {
  font-size: 42px;
  line-height: 1;
  margin: 18px 0;
}

.brand span {
  color: #d9e2ec;
  line-height: 1.6;
}

form {
  display: grid;
  gap: 14px;
  padding: 42px;
}

h2 { margin: 0 0 8px; }

label {
  display: grid;
  gap: 6px;
  color: #475467;
  font-size: 13px;
}

input,
button {
  height: 38px;
  border-radius: 6px;
  font: inherit;
}

input {
  border: 1px solid #cbd5e1;
  padding: 0 10px;
}

button {
  border: 0;
  background: #1f6feb;
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

#message {
  min-height: 18px;
  margin: 0;
  color: #b42318;
}

@media (max-width: 760px) {
  main { grid-template-columns: 1fr; }
  .brand { display: none; }
}