:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #111827;
  background: #f4f6f9;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
.shell { min-height: 100vh; display: grid; grid-template-columns: 320px minmax(0, 1fr); }
.brand-panel { background: #0f1a2d; color: #fff; padding: 44px 40px; display: flex; align-items: flex-start; gap: 14px; }
.brand-mark { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; background: #fff; color: #0f1a2d; font-weight: 800; font-size: 22px; }
.brand-name { font-size: 24px; font-weight: 750; margin-top: 2px; }
.brand-tagline { color: #a9bbd4; margin-top: 3px; font-size: 14px; }
.card { width: min(620px, calc(100% - 48px)); margin: auto; padding: 38px; background: #fff; border: 1px solid #d9e1ec; border-radius: 24px; box-shadow: 0 16px 50px rgba(15,26,45,.07); }
.eyebrow { color: #285dff; font-weight: 800; font-size: 12px; letter-spacing: .08em; }
.eyebrow.danger { color: #b42318; }
h1 { font-size: 34px; letter-spacing: -.03em; margin: 10px 0 14px; }
p { line-height: 1.6; color: #49566a; }
.muted { color: #718096; }
label { display: block; font-weight: 650; margin-top: 18px; }
input { width: 100%; margin-top: 8px; padding: 14px 16px; border: 1px solid #c8d2df; border-radius: 12px; font: inherit; }
button, .button-link { margin-top: 22px; display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 0 22px; border-radius: 12px; border: 0; background: #285dff; color: #fff; font: inherit; font-weight: 750; text-decoration: none; cursor: pointer; }
.hidden { display: none !important; }
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .brand-panel { padding: 24px; min-height: 110px; }
  .card { margin: 24px auto; width: calc(100% - 32px); padding: 28px 22px; }
  h1 { font-size: 29px; }
}