body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 360px;
  padding: 36px 32px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.card h1 {
  margin: 0 0 4px;
  font-size: 22px;
}

.card .subtitle {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 14px;
}

[hidden] {
  display: none !important;
}

.sso-button {
  display: block;
  width: 100%;
  padding: 11px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.sso-button:hover {
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.13);
}

.sso-button.is-busy {
  opacity: 0.65;
  pointer-events: none;
}

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 10px;
  color: var(--muted);
  font-size: 12px;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 12px;
}

input {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 14px;
}

input:focus {
  outline: none;
  border-color: var(--accent);
}

button[type="submit"] {
  margin-top: 22px;
  padding: 11px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

button[type="submit"]:hover {
  background: var(--accent-hover);
}

button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: default;
}

.error {
  margin: 14px 0 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.35);
  color: var(--danger);
  font-size: 13px;
}