.kain-login {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 40px 24px;
}

.kain-login-brand {
  margin-bottom: 12px;
}

.kain-login-card {
  width: 100%;
  max-width: 360px;
  background: var(--kain-surface);
  border: 1px solid var(--kain-border);
  border-radius: var(--kain-radius-lg);
  padding: 28px;
  box-shadow: var(--kain-shadow-card);
  display: flex;
  flex-direction: column;
}

.kain-login-card h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.kain-login-sub {
  margin: 6px 0 22px;
  font-size: 13px;
  color: var(--kain-muted);
}

.kain-login-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--kain-muted);
  margin: 12px 0 6px;
}
.kain-login-label:first-of-type { margin-top: 0; }

.kain-login-error {
  margin-top: 14px;
  padding: 10px 12px;
  background: var(--kain-danger-bg);
  border: 1px solid oklch(60% 0.18 22 / 0.5);
  color: var(--kain-danger);
  border-radius: var(--kain-radius);
  font-size: 13px;
  font-weight: 600;
}

.kain-login-submit {
  margin-top: 20px;
  width: 100%;
  justify-content: center;
  padding: 12px 18px;
}

.kain-login-cancel {
  font-size: 12px;
  color: var(--kain-muted);
  letter-spacing: 0.04em;
}
.kain-login-cancel:hover { color: var(--kain-ink); }