:root {
  color-scheme: light;
  --blue: #0054ac;
  --blue-dark: #003e80;
  --blue-light: #e1effe;
  --blue-soft: #f3f8fe;
  --text: #303f50;
  --muted: #637487;
  --line: #cbd8e6;
  --line-strong: #9fb7d0;
  --surface: #ffffff;
  --canvas: #f5f7fa;
  --danger: #b42318;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html,
body { min-height: 100%; margin: 0; }

body {
  min-width: 320px;
  display: grid;
  place-items: center;
  overflow-x: hidden;
  background:
    linear-gradient(135deg, rgba(0, 84, 172, .08), transparent 42%),
    var(--canvas);
  color: var(--text);
  padding: 24px;
}

.login-shell {
  width: min(460px, 100%);
  border: 1px solid var(--line-strong);
  border-top: 4px solid var(--blue);
  border-radius: 2px;
  background: var(--surface);
  box-shadow: 0 18px 48px rgba(15, 50, 86, .12);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  background: var(--blue-soft);
  padding: 18px 22px;
}

.login-logo-frame {
  flex: 0 0 auto;
  display: grid;
  width: 112px;
  height: 52px;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
}

.login-logo { display: block; width: 100px; height: 44px; object-fit: contain; }

h1,
p { margin: 0; }

h1 { color: var(--blue-dark); font-size: 21px; line-height: 1.2; }
.login-brand p { margin-top: 4px; color: var(--muted); font-size: 13px; }

.login-body { padding: 24px 22px 22px; }
.login-intro { margin-bottom: 18px; color: var(--muted); font-size: 14px; line-height: 1.5; }

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

label {
  display: grid;
  gap: 6px;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
}

input,
button { min-height: 42px; border-radius: 2px; font: inherit; }

input {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--text);
  padding: 9px 11px;
}

input:hover { border-color: var(--blue); }
input:focus-visible,
button:focus-visible { outline: 3px solid #80b9f2; outline-offset: 2px; }

button {
  border: 1px solid var(--blue);
  background: var(--blue);
  color: #fff;
  cursor: pointer;
  padding: 9px 14px;
  font-weight: 700;
}

button:hover { background: var(--blue-dark); }
button:disabled { cursor: not-allowed; opacity: .58; }

#error { min-height: 21px; color: var(--danger); font-size: 13px; }

@media (max-width: 480px) {
  body { padding: 14px; }
  .login-brand { align-items: flex-start; flex-direction: column; }
  .login-logo-frame { width: 104px; height: 48px; }
  .login-logo { width: 94px; height: 40px; }
}