.auth-container {
  flex: 1;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xxl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-3xl) var(--space-2xl);
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.auth-logo {
  font-size: 44px;
  color: var(--primary-color);
  margin-bottom: var(--space-md);
}

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

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

.auth-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: var(--space-lg);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px;
}

.auth-tab {
  flex: 1;
  padding: 11px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.auth-tab.active {
  background: var(--surface);
  color: var(--primary-color);
  box-shadow: var(--shadow-xs);
}

.auth-form {
  text-align: left;
}

.auth-form .form-group {
  margin-bottom: var(--space-md);
}

.auth-form label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.auth-form input {
  width: 100%;
  padding: 13px var(--space-lg);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  background: var(--surface);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.auth-form input:focus {
  border-color: var(--primary-color);
  box-shadow: var(--focus-ring);
}

.password-field {
  position: relative;
}

.password-field input {
  padding-right: 48px;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: var(--radius-full);
  color: var(--text-tertiary);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.password-toggle:hover,
.password-toggle.is-active {
  color: var(--primary-color);
  background: var(--surface-tint);
}

.password-toggle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.auth-form input.has-error {
  border-color: var(--primary-color);
}

.field-hint {
  margin-top: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--primary-strong);
}

.auth-btn {
  width: 100%;
  padding: 15px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--primary-gradient);
  color: #fff;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--primary-shadow);
  margin-top: var(--space-sm);
  min-height: 50px;
}

.auth-btn:hover {
  box-shadow: var(--primary-shadow-hover);
}

.auth-btn:active {
  transform: scale(0.98);
}

.auth-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.auth-error,
.auth-success {
  padding: 12px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
}

.auth-error {
  background: rgba(229, 57, 53, 0.08);
  color: #c62828;
  border: 1px solid rgba(229, 57, 53, 0.18);
}

.auth-success {
  background: rgba(46, 125, 50, 0.08);
  color: #2e7d32;
  border: 1px solid rgba(46, 125, 50, 0.18);
}

.auth-note {
  margin-bottom: var(--space-md);
  font-size: var(--font-size-xs);
  line-height: 1.5;
  color: var(--text-tertiary);
  text-align: center;
}

.auth-divider {
  display: flex;
  align-items: center;
  margin: var(--space-lg) 0;
  color: var(--text-tertiary);
  font-size: var(--font-size-xs);
}

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

.auth-divider span {
  padding: 0 var(--space-md);
}

.auth-link {
  color: var(--primary-color);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.auth-link:hover {
  text-decoration: underline;
}