.login-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.login-overlay[hidden] {
  display: none;
}

.login-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 17, 32, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn 0.3s ease both;
}

.login-modal {
  position: relative;
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 420px;
  padding: var(--space-10);
  box-shadow: 0 32px 80px rgba(11, 17, 32, 0.3);
  animation: slideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.login-modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.login-modal__close:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.login-modal__header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.login-modal__logo {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  box-shadow: 0 4px 16px rgba(26, 54, 93, 0.2);
  margin: 0 auto var(--space-5);
}

.login-modal__logo--eco {
  background: transparent;
  box-shadow: none;
}

.login-modal__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: var(--space-1);
}

.login-modal__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.login-form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.login-form__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.login-form__input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.login-form__input-icon {
  position: absolute;
  left: var(--space-4);
  color: var(--color-text-dim);
  pointer-events: none;
}

.login-form__input {
  width: 100%;
  padding: 12px var(--space-4) 12px 44px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.login-form__input:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
  background: var(--color-bg-card);
}

.login-form__input::placeholder {
  color: var(--color-text-dim);
}

.login-form__input.error {
  border-color: var(--color-error);
}

.login-form__input.error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.login-form__toggle-pass {
  position: absolute;
  right: var(--space-3);
  color: var(--color-text-dim);
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.login-form__toggle-pass:hover {
  color: var(--color-text-muted);
}

.login-form__error {
  font-size: var(--text-xs);
  color: var(--color-error);
  display: none;
}

.login-form__error.visible {
  display: block;
}

.login-form__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.login-form__checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  user-select: none;
}

.login-form__checkbox input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.login-form__checkmark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  flex-shrink: 0;
  position: relative;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.login-form__checkbox input:checked + .login-form__checkmark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.login-form__checkbox input:checked + .login-form__checkmark::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 6px;
  height: 10px;
  border: solid var(--color-text-inverse);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.login-form__checkbox input:focus-visible + .login-form__checkmark {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.login-form__forgot {
  font-size: var(--text-sm);
  color: var(--color-primary-light);
  font-weight: 500;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.login-form__forgot:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.login-form__submit {
  width: 100%;
  padding: 14px;
  position: relative;
}

.login-form__submit .btn__spinner {
  display: none;
  animation: spin 0.8s linear infinite;
}

.login-form__submit.loading .btn__text {
  visibility: hidden;
}

.login-form__submit.loading .btn__spinner {
  display: inline-flex;
  position: absolute;
}

.login-modal__footer {
  text-align: center;
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.login-modal__footer a {
  color: var(--color-primary-light);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.login-modal__footer a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.login-modal.success .login-modal__header {
  display: none;
}

.login-modal.success .login-form {
  display: none;
}

.login-modal.success .login-modal__footer {
  display: none;
}

.login-modal.success .login-modal__success {
  display: flex;
}

.login-modal__success {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-4) 0;
}

.login-modal__success-icon {
  width: 56px;
  height: 56px;
  background: var(--color-success);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin-bottom: var(--space-4);
}

.login-modal__success-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.login-modal__success-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.login-modal.shake {
  animation: shake 0.4s ease both;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

@media (max-width: 480px) {
  .login-overlay {
    padding: var(--space-4);
    align-items: flex-end;
  }

  .login-modal {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: var(--space-8) var(--space-6);
    animation: slideUpMobile 0.35s cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  @keyframes slideUpMobile {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
  }
}