.login-viewport {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background-color: var(--color-paper);
  background-image: radial-gradient(
    rgba(19, 32, 92, 0.03) 1px,
    transparent 1px
  );
  background-size: 24px 24px;
}

.login-container {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Logo Edulab */
.login-logo {
  height: 48px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  margin-bottom: 32px;
  display: block;
  filter: drop-shadow(0 1px 3px rgba(19, 32, 92, 0.06));
  transition: transform var(--transition-fast);
}

.login-logo:hover {
  transform: scale(1.02);
}

/* Card Form: Garis tipis amber di bagian atas form sebagai penanda */
.login-card {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--border-radius);
  padding: 36px 32px;
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition-normal);
}

.login-card:hover {
  box-shadow: var(--shadow-lg);
}

.login-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-section-title);
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 24px;
  text-align: left;
  letter-spacing: -0.015em;
}

/* Form Groups */
.form-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-label {
  font-size: var(--font-size-label);
  font-weight: 600;
  color: var(--color-ink);
  text-transform: none; /* Sentence case */
  letter-spacing: 0.01em;
}

.form-input {
  width: 100%;
  min-height: var(--min-touch-target);
  padding: 10px 14px;
  font-size: var(--font-size-body);
  color: var(--color-ink);
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: var(--border-radius-sm);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-input::placeholder {
  color: #a3a8bc;
}

.form-input:hover {
  border-color: #c7cbd6;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(245, 183, 0, 0.25);
}

.form-input[aria-invalid="true"] {
  border-color: var(--color-verdict-tidak-layak);
  background-color: #fffdfd;
  box-shadow: 0 0 0 3px rgba(180, 35, 24, 0.15);
}

/* Error message banner */
.login-error {
  display: none;
  font-size: var(--font-size-label);
  color: var(--color-verdict-tidak-layak);
  background-color: var(--color-verdict-tidak-layak-bg);
  border: 1px solid #fecdca;
  border-left: 4px solid var(--color-verdict-tidak-layak);
  border-radius: var(--border-radius-sm);
  padding: 11px 14px;
  margin-bottom: 22px;
  line-height: 1.45;
  font-weight: 500;
}

.login-error.is-visible {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Tombol Masuk: Navy, Full width, Min height 44px */
.btn-submit {
  width: 100%;
  min-height: var(--min-touch-target);
  padding: 12px 18px;
  background-color: var(--color-ink);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 1px 2px rgba(19, 32, 92, 0.15);
  transition:
    background-color var(--transition-fast),
    transform 0.08s ease,
    box-shadow var(--transition-fast);
}

.btn-submit:hover:not(:disabled) {
  background-color: #0b133a;
  box-shadow: 0 4px 12px rgba(19, 32, 92, 0.2);
}

.btn-submit:active:not(:disabled) {
  background-color: #060b22;
  transform: translateY(1px);
}

.btn-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* Teks kecil di bawah form */
.login-footer-note {
  font-size: var(--font-size-label);
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 22px;
  line-height: 1.4;
  letter-spacing: 0.01em;
}