.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  padding: var(--space-6);
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  margin-bottom: var(--space-8);
}

.auth-logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.auth-heading {
  font-size: var(--font-size-xl);
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.4px;
  margin-bottom: var(--space-2);
}

.auth-subheading {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

/* Form */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-4);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input::placeholder {
  color: var(--text-tertiary);
}

.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

.form-input.error {
  border-color: var(--color-expense);
  box-shadow: 0 0 0 3px var(--color-expense-subtle);
}

/* Password wrapper */
.input-wrapper {
  position: relative;
}

.input-wrapper .form-input {
  padding-right: 44px;
}

.input-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  color: var(--text-tertiary);
  transition: color var(--transition);
}

.input-toggle:hover {
  color: var(--text-secondary);
}

.input-toggle svg {
  width: 18px;
  height: 18px;
}

/* Error message */
.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-expense);
  margin-top: var(--space-2);
  display: none;
}

.form-error.visible {
  display: block;
}

/* Alert */
.auth-alert {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-5);
  display: none;
}

.auth-alert.visible {
  display: flex;
}

.auth-alert.error {
  background: var(--color-expense-subtle);
  color: var(--color-expense);
  border: 1px solid rgba(244, 63, 94, 0.2);
}

.auth-alert svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Button */
.btn-primary {
  width: 100%;
  height: 44px;
  background: var(--color-accent);
  color: white;
  font-size: var(--font-size-base);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: background var(--transition), opacity var(--transition), transform var(--transition);
  letter-spacing: -0.1px;
  margin-top: var(--space-2);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-primary:active {
  transform: scale(0.99);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-primary .spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: var(--radius-full);
  animation: spin 0.7s linear infinite;
  margin: 0 auto;
}

.btn-primary.loading .btn-text {
  display: none;
}

.btn-primary.loading .spinner {
  display: block;
}

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

/* Theme toggle — fixed position override for login page */
.theme-toggle {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  box-shadow: var(--shadow-sm);
}