:root{
  --fb-blue:#078FDE;
  --fb-green:#80E051;
  --fb-navy:#243B5A;
  --fb-bg:#F5F7FB;
  --fb-card:#FFFFFF;
  --fb-text:#0F172A;
  --fb-muted:#64748B;
  --fb-border:#E6EAF2;
  --shadow:0 18px 50px rgba(15,23,42,.10);
  --radius:20px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--fb-text);
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(7,143,222,.12), transparent 60%),
    radial-gradient(900px 500px at 90% 0%, rgba(128,224,81,.12), transparent 55%),
    var(--fb-bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 460px;
  background: var(--fb-card);
  border: 1px solid var(--fb-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.login-brand-badge {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background:  #213a5a;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: 0 10px 24px rgba(7,143,222,.22);
}

.login-brand-text h1 {
  margin: 0;
  font-size: 1.45rem;
  line-height: 1.2;
  color: var(--fb-navy);
}

.login-brand-text p {
  margin: 4px 0 0;
  color: var(--fb-muted);
  font-size: 0.98rem;
}

.form-row {
  margin-top: 16px;
}

label {
  display: block;
  margin-bottom: 7px;
  font-weight: 700;
  font-size: 0.96rem;
}

input {
  width: 100%;
  border: 1px solid #d9e2ef;
  border-radius: 12px;
  padding: 13px 14px;
  font-size: 1rem;
  outline: none;
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}

input:focus {
  border-color: rgba(7,143,222,.7);
  box-shadow: 0 0 0 4px rgba(7,143,222,.10);
}

button {
  width: 100%;
  margin-top: 20px;
  border: 0;
  border-radius: 12px;
  padding: 13px 16px;
  font-size: 1rem;
  font-weight: 800;
  color: white;
  cursor: pointer;
  background: #213a5a;
  box-shadow: 0 12px 28px rgba(7,143,222,.22);
}

button:hover {
  filter: brightness(.98);
}

.error {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #fef3f2;
  border: 1px solid #fecdca;
  color: #b42318;
  font-size: 0.96rem;
  font-weight: 600;
}

.footer-note {
  margin-top: 18px;
  color: var(--fb-muted);
  font-size: 0.9rem;
  text-align: center;
}