/**
 * Components CSS - inscripciones.mibu.es
 * Componentes reutilizables adaptados de mibu.es
 */

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-md);
}

h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

@media (min-width: 768px) {
  h1 { font-size: var(--font-size-4xl); }
  h2 { font-size: var(--font-size-3xl); }
  h3 { font-size: var(--font-size-2xl); }
}

p {
  margin-bottom: var(--space-md);
  line-height: var(--line-height-relaxed);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: white;
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: white;
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background-color: var(--color-secondary-light);
  border-color: var(--color-secondary-light);
  color: white;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn-light {
  background-color: white;
  color: var(--color-primary);
  border-color: white;
}

.btn-light:hover {
  background-color: var(--color-surface);
  color: var(--color-primary-dark);
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-lg);
}

.btn-block {
  width: 100%;
}

/* ========================================
   HEADER
   ======================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  height: var(--header-height-mobile);
}

@media (min-width: 768px) {
  .site-header {
    height: var(--header-height);
  }
}

.header__container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
}

.header__logo:hover {
  color: var(--color-primary-dark);
  text-decoration: none;
}

.header__logo img {
  height: 40px;
  width: auto;
}

@media (min-width: 768px) {
  .header__logo img {
    height: 50px;
  }
}

.header__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
}

@media (min-width: 768px) {
  .header__title {
    font-size: var(--font-size-xl);
  }
}

.header__nav {
  display: none;
}

@media (min-width: 768px) {
  .header__nav {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
  }
}

.header__nav-link {
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  padding: var(--space-sm) var(--space-md);
  position: relative;
  transition: color var(--transition-fast);
}

.header__nav-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.header__back-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.header__back-link:hover {
  color: var(--color-primary);
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
  background-color: var(--color-secondary);
  color: white;
  padding-block: var(--space-2xl);
  margin-top: auto;
}

.footer__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer__logo img {
  height: 40px;
}

.footer__links {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__link {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: white;
  text-decoration: none;
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   PAGE HEADER
   ======================================== */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  text-align: center;
}

.page-header h1 {
  color: white;
  margin-bottom: var(--space-sm);
}

.page-header p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  margin-bottom: 0;
}

/* Page header con imagen de fondo */
.page-header--image {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
}

.page-header__image-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.page-header__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: rgba(0, 0, 0, 0.5);
}

.page-header__container {
  position: relative;
  z-index: 2;
}

.page-header--image h1,
.page-header--image p {
  color: white;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
}

/* ========================================
   SECTION HEADERS
   ======================================== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title {
  color: var(--color-primary);
}

.section-subtitle {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  max-width: var(--max-width-text);
  margin-inline: auto;
}

/* ========================================
   CARDS BASE
   ======================================== */
.card {
  background-color: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background-color: var(--color-surface);
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card__image img {
  transform: scale(1.05);
}

.card__content {
  padding: var(--space-lg);
}

.card__badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background-color: var(--color-primary);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
}

/* ========================================
   BADGES
   ======================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background-color: var(--color-primary);
  color: white;
}

.badge-success {
  background-color: var(--color-success);
  color: white;
}

.badge-warning {
  background-color: var(--color-warning);
  color: white;
}

.badge-info {
  background-color: var(--color-info);
  color: white;
}

.badge-error {
  background-color: var(--color-error);
  color: white;
}

/* ========================================
   LOADING & EMPTY STATES
   ======================================== */
.loading-placeholder {
  padding: var(--space-3xl);
  text-align: center;
  color: var(--color-text-light);
}

.loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-surface);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.empty-state {
  padding: var(--space-3xl);
  text-align: center;
}

.empty-state__icon {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-md);
  opacity: 0.3;
}

.empty-state__message {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
}

/* ========================================
   BREADCRUMB
   ======================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.breadcrumb a {
  color: var(--color-text-light);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb__separator {
  color: var(--color-border);
}

/* ========================================
   INFO BOX
   ======================================== */
.info-box {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
}

.info-box__icon {
  flex-shrink: 0;
  font-size: var(--font-size-xl);
}

.info-box__content {
  flex: 1;
}

.info-box--warning {
  background-color: rgba(255, 152, 0, 0.1);
  border: 1px solid var(--color-warning);
}

.info-box--info {
  background-color: rgba(33, 150, 243, 0.1);
  border: 1px solid var(--color-info);
}

.info-box--success {
  background-color: rgba(76, 175, 80, 0.1);
  border: 1px solid var(--color-success);
}

/* ========================================
   LISTS
   ======================================== */
.list-unstyled {
  list-style: none;
  padding: 0;
  margin: 0;
}

.list-inline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ========================================
   ICONS (usando emojis como fallback)
   ======================================== */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1em;
  height: 1em;
  font-size: inherit;
}