/**
 * Componentes de Autenticación
 * Estilos para login, registro y recuperación de contraseña
 */

/* ==========================================================================
   LAYOUT DE AUTENTICACIÓN
   ========================================================================== */

.page--auth {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-pale) 0%, var(--color-neutral-100) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background Pattern */
.auth-bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  opacity: 0.03;
}

.auth-bg__pattern {
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 25% 25%, var(--color-primary) 2px, transparent 2px),
    radial-gradient(circle at 75% 75%, var(--color-secondary) 1px, transparent 1px);
  background-size: 60px 60px, 40px 40px;
  background-position: 0 0, 30px 30px;
}

/* Container Principal */
.auth-container {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
  gap: var(--spacing-xl);
}

/* ==========================================================================
   HEADER DE AUTENTICACIÓN
   ========================================================================== */

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.auth-header__subtitle {
  color: var(--color-neutral-600);
  font-size: var(--font-size-lg);
  margin: var(--spacing-md) 0 0;
  font-weight: var(--font-weight-normal);
}

/* ==========================================================================
   CARD DE AUTENTICACIÓN
   ========================================================================== */

.auth-card {
  width: 100%;
  max-width: 420px;
  background: white;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--color-neutral-200);
}

.auth-card__header {
  padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  background: linear-gradient(135deg, var(--color-neutral-50) 0%, white 100%);
  border-bottom: 1px solid var(--color-neutral-100);
}

.auth-card__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-800);
  margin: 0 0 var(--spacing-sm);
}

.auth-card__subtitle {
  color: var(--color-neutral-600);
  font-size: var(--font-size-sm);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

.auth-card__body {
  padding: var(--spacing-xl);
}

/* ==========================================================================
   FORMULARIOS DE AUTENTICACIÓN
   ========================================================================== */

.auth-form {
  width: 100%;
}

.auth-form__submit {
  margin-top: var(--spacing-lg);
}

/* Form Groups */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group--half {
  flex: 1;
}

.form-row {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

@media (max-width: 480px) {
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  
  .form-group--half {
    margin-bottom: var(--spacing-lg);
  }
}

/* Labels */
.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-neutral-700);
  margin-bottom: var(--spacing-xs);
  line-height: var(--line-height-tight);
}

.required {
  color: var(--color-error);
}

/* Input Groups */
.form-input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-neutral-700);
  background-color: white;
  border: var(--border-width) solid var(--color-neutral-300);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}

.form-input::placeholder {
  color: var(--color-neutral-400);
}

.form-input:focus {
  outline: 0;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 144, 164, 0.1);
}

.form-input:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

.form-input--error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(232, 93, 117, 0.1);
}

/* Input con iconos */
.form-input-group .form-input {
  padding-left: 3rem;
}

.form-input-icon {
  position: absolute;
  left: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-neutral-400);
  pointer-events: none;
  z-index: 1;
}

.form-input:focus + .form-input-icon {
  color: var(--color-primary);
}

/* Toggle para contraseña */
.form-input-toggle {
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-neutral-400);
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-sm);
  transition: color var(--transition-fast);
  z-index: 2;
}

.form-input-toggle:hover {
  color: var(--color-neutral-600);
}

.form-input-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Input con toggle */
.form-input-group:has(.form-input-toggle) .form-input {
  padding-right: 3rem;
}

/* Form Help */
.form-help {
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-neutral-500);
  line-height: var(--line-height-relaxed);
}

/* Form Errors */
.form-error {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-error);
  line-height: var(--line-height-normal);
}

.form-error:empty {
  display: none;
}

/* ==========================================================================
   CHECKBOXES Y RADIOS
   ========================================================================== */

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  cursor: pointer;
  line-height: var(--line-height-relaxed);
}

.form-checkbox input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.form-checkbox__mark {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: var(--border-width) solid var(--color-neutral-300);
  border-radius: var(--border-radius-sm);
  background: white;
  position: relative;
  transition: all var(--transition-fast);
  margin-top: 2px;
}

.form-checkbox__mark::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 6px;
  height: 10px;
  border: 2px solid white;
  border-left: 0;
  border-top: 0;
  transform-origin: center;
  transition: transform var(--transition-fast);
}

.form-checkbox input:checked + .form-checkbox__mark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.form-checkbox input:checked + .form-checkbox__mark::after {
  transform: translate(-50%, -60%) rotate(45deg) scale(1);
}

.form-checkbox:hover .form-checkbox__mark {
  border-color: var(--color-primary);
}

.form-checkbox input:focus + .form-checkbox__mark {
  box-shadow: 0 0 0 3px rgba(74, 144, 164, 0.1);
}

.form-checkbox__label {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-700);
}

/* ==========================================================================
   FORM OPTIONS
   ========================================================================== */

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: var(--spacing-lg) 0;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

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

.form-link:hover,
.form-link:focus {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ==========================================================================
   PASSWORD REQUIREMENTS
   ========================================================================== */

.password-requirements {
  list-style: none;
  padding: 0;
  margin: var(--spacing-xs) 0 0;
  font-size: var(--font-size-xs);
}

.password-requirements li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
  color: var(--color-neutral-500);
  position: relative;
  padding-left: 1.2rem;
}

.password-requirements li::before {
  content: '○';
  position: absolute;
  left: 0;
  color: var(--color-neutral-400);
  transition: all var(--transition-fast);
}

.password-requirements li.valid {
  color: var(--color-success);
}

.password-requirements li.valid::before {
  content: '✓';
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
}

/* ==========================================================================
   DIVIDERS Y ALTERNATIVAS
   ========================================================================== */

.auth-divider {
  position: relative;
  margin: var(--spacing-xl) 0;
  text-align: center;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-neutral-200);
}

.auth-divider__text {
  background: white;
  padding: 0 var(--spacing-md);
  color: var(--color-neutral-500);
  font-size: var(--font-size-sm);
  position: relative;
  z-index: 1;
}

.auth-alternative {
  text-align: center;
  margin-top: var(--spacing-lg);
}

.auth-alternative__text {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-600);
  margin: 0;
}

.auth-alternative__link {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  margin-left: var(--spacing-xs);
}

.auth-alternative__link:hover,
.auth-alternative__link:focus {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ==========================================================================
   FOOTER DE AUTENTICACIÓN
   ========================================================================== */

.auth-footer {
  text-align: center;
  margin-top: auto;
  padding-top: var(--spacing-xl);
}

.auth-footer__text {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-500);
  margin: 0;
}

/* ==========================================================================
   ALERTAS
   ========================================================================== */

.alert-container {
  margin-bottom: var(--spacing-lg);
}

.alert {
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  border: 1px solid transparent;
}

.alert--success {
  color: var(--color-success);
  background-color: var(--color-success-light);
  border-color: var(--color-success);
}

.alert--error {
  color: var(--color-error);
  background-color: var(--color-error-light);
  border-color: var(--color-error);
}

.alert--warning {
  color: #8B5A00;
  background-color: var(--color-warning-light);
  border-color: var(--color-warning);
}

.alert--info {
  color: var(--color-primary);
  background-color: var(--color-info-light);
  border-color: var(--color-primary);
}

/* ==========================================================================
   SUCCESS MESSAGE
   ========================================================================== */

.success-message {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-md);
}

.success-message__icon {
  margin-bottom: var(--spacing-lg);
  color: var(--color-success);
}

.success-message__icon svg {
  width: 64px;
  height: 64px;
}

.success-message__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-800);
  margin: 0 0 var(--spacing-md);
}

.success-message__text {
  color: var(--color-neutral-600);
  line-height: var(--line-height-relaxed);
  margin: 0 0 var(--spacing-xl);
}

.success-message__actions {
  margin-top: var(--spacing-xl);
}

/* ==========================================================================
   SECURITY NOTICE
   ========================================================================== */

.security-notice {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--color-neutral-100);
  border-radius: var(--border-radius-md);
  margin: var(--spacing-lg) 0;
  border-left: 4px solid var(--color-info);
}

.security-notice__icon {
  flex-shrink: 0;
  color: var(--color-info);
  margin-top: 2px;
}

.security-notice__content {
  flex: 1;
}

.security-notice__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-neutral-800);
  margin: 0 0 var(--spacing-xs);
}

.security-notice__text {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-600);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

/* ==========================================================================
   HELP SECTION
   ========================================================================== */

.auth-help {
  width: 100%;
  max-width: 420px;
  background: white;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-neutral-200);
}

.auth-help__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-800);
  margin: 0 0 var(--spacing-md);
}

.auth-help__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.auth-help__item h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-neutral-700);
  margin: 0 0 var(--spacing-xs);
}

.auth-help__item p {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-600);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 480px) {
  .auth-container {
    padding: var(--spacing-md);
    gap: var(--spacing-md);
  }
  
  .auth-card {
    max-width: none;
  }
  
  .auth-card__header {
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  }
  
  .auth-card__body {
    padding: var(--spacing-md);
  }
  
  .auth-card__title {
    font-size: var(--font-size-xl);
  }
  
  .form-options {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }
  
  .auth-help {
    margin: 0;
  }
}