/* ===================================
   KINOVA MEDIA PAGE STYLES
   Apple-inspired videoteca design
   =================================== */

/* ===================================
   MEDIA HERO SECTION
   =================================== */

.media-hero {
  position: relative;
  padding: calc(var(--header-height) + 4rem) 0 4rem;
  background: linear-gradient(135deg, #111827 0%, #1f2937 100%);
  color: var(--white);
  overflow: hidden;
  min-height: 40vh;
  display: flex;
  align-items: center;
}

.media-hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 50%, rgba(0, 255, 245, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(0, 212, 204, 0.1) 0%, transparent 50%);
  animation: gradientShift 15s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1) rotate(5deg);
  }
}

.media-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  animation: fadeInUp 1s ease 0.2s both;
}

.media-hero-title {
  font-size: var(--text-6xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
  color: var(--white);
}

.media-hero-title .title-line {
  display: block;
}

.media-hero-subtitle {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  margin: 0;
}

/* ===================================
   FILTER SECTION
   =================================== */

.media-filter {
  padding: var(--space-12) 0;
  background: var(--white);
  position: sticky;
  top: var(--header-height);
  z-index: 100;
  border-bottom: 1px solid var(--gray-200);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-fast);
}

.media-filter.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

.filter-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: center;
}

.filter-tabs {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
  max-width: 100%;
}

.filter-tabs::-webkit-scrollbar {
  display: none;
}

.filter-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--gray-50);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: var(--text-base);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.filter-tab i {
  font-size: var(--text-lg);
  transition: transform var(--transition-fast);
}

.filter-tab:hover {
  background: var(--gray-100);
  border-color: var(--primary-color);

}

.filter-tab.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.filter-tab.active:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

/* Search Box */
.search-box {
  position: relative;
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
}

.search-box i {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: var(--text-lg);
  pointer-events: none;
  z-index: 1;
}

.search-box input {
  width: 100%;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-12);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-full);
  font-size: var(--text-base);
  font-family: inherit;
  transition: all var(--transition-fast);
  background: var(--white);
  text-align: left;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-alpha);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

/* ===================================
   MEDIA GRID
   =================================== */

.media-grid-section {
  padding: var(--space-16) 0;
  background: var(--bg-light);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.media-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  opacity: 1;
  transform: scale(1);
  animation: fadeInScale 0.5s ease both;
}

.media-card:nth-child(1) { animation-delay: 0.1s; }
.media-card:nth-child(2) { animation-delay: 0.2s; }
.media-card:nth-child(3) { animation-delay: 0.3s; }
.media-card:nth-child(4) { animation-delay: 0.4s; }
.media-card:nth-child(5) { animation-delay: 0.5s; }
.media-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.media-card.hidden {
  display: none;
}

.media-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

/* Media Thumbnail */
.media-thumbnail {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
  background: var(--gray-900);
}

.media-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.media-card:hover .media-thumbnail img {
  transform: scale(1.05);
}

.play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.media-card:hover .play-overlay {
  opacity: 1;
}

.play-button-large {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: var(--text-3xl);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-xl);
}

.media-card:hover .play-button-large {
  transform: scale(1.1);
  background: var(--primary-dark);
}

.video-duration {
  position: absolute;
  bottom: var(--space-3);
  right: var(--space-3);
  background: rgba(0, 0, 0, 0.8);
  color: var(--white);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
}

/* Media Content */
.media-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.media-category {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--primary-alpha);
  color: var(--primary-color);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  width: fit-content;
}

.media-category.educativo {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
}

.media-category.tratamiento {
  background: rgba(168, 85, 247, 0.1);
  color: #a855f7;
}

.media-category.ejercicio {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
}

.media-category i {
  font-size: var(--text-base);
}

.media-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.media-description {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.media-meta {
  display: flex;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--gray-100);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.meta-item i {
  font-size: var(--text-sm);
  color: var(--primary-color);
}

/* No Results */
.no-results {
  text-align: center;
  padding: var(--space-20) var(--space-8);
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.no-results i {
  font-size: 60px;
  color: var(--gray-300);
  margin-bottom: var(--space-4);
}

.no-results h3 {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.no-results p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin: 0;
}

/* ===================================
   CTA SECTION
   =================================== */

.media-cta {
  padding: var(--space-24) 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.media-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  animation: gradientShift 10s ease-in-out infinite;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: var(--text-4xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--white);
}

.cta-content p {
  font-size: var(--text-xl);
  margin-bottom: var(--space-8);
  opacity: 0.95;
  color: var(--white);
}

.cta-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

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

.cta-actions .btn-primary:hover {
  background: var(--gray-100);
  color: var(--primary-dark);
}

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

.cta-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  color: var(--white);
}

/* ===================================
   VIDEO MODAL
   =================================== */

.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.video-modal.active {
  display: flex;
}

.video-modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.video-modal-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  animation: modalZoomIn 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes modalZoomIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.video-modal-close {
  position: absolute;
  top: -50px;
  right: 0;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  color: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  font-size: var(--text-xl);
  z-index: 2;
}

.video-modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.video-modal-content {
  background: var(--gray-900);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
  background: var(--gray-900);
}

.video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  gap: var(--space-4);
}

.video-placeholder i {
  font-size: 80px;
  color: var(--primary-color);
}

.video-placeholder p {
  font-size: var(--text-xl);
  margin: 0;
}

/* ===================================
   ACTIVE NAVIGATION LINK
   =================================== */

.nav-link.active,
.mobile-nav-link.active {
  color: var(--primary-color);
  position: relative;
}

.nav-link.active::after {
  width: 100%;
}

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

@media (max-width: 1024px) {
  .media-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
  }
  
  .filter-wrapper {
    gap: var(--space-4);
  }
}

@media (max-width: 768px) {
  .media-hero {
    padding: calc(var(--header-height) + 3rem) 0 3rem;
    min-height: 30vh;
  }
  
  .media-hero-title {
    font-size: var(--text-4xl);
  }
  
  .media-hero-subtitle {
    font-size: var(--text-lg);
  }
  
  .media-filter {
    padding: var(--space-8) 0;
  }
  
  .filter-wrapper {
    align-items: stretch;
  }
  
  .filter-tabs {
    gap: var(--space-2);
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }
  
  .filter-tab {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    flex-shrink: 0;
  }
  
  .filter-tab span {
    display: none;
  }
  
  .filter-tab i {
    font-size: var(--text-xl);
  }
  
  .search-box {
    max-width: 100%;
    padding: 0 var(--space-4);
  }
  
  .media-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .media-grid-section {
    padding: var(--space-12) 0;
  }
  
  .cta-content h2 {
    font-size: var(--text-3xl);
  }
  
  .cta-content p {
    font-size: var(--text-lg);
  }
  
  .cta-actions {
    flex-direction: column;
  }
  
  .cta-actions .btn-large {
    width: 100%;
  }
  
  .video-modal-close {
    top: var(--space-4);
    right: var(--space-4);
  }
}

@media (max-width: 480px) {
  .media-hero-title {
    font-size: var(--text-3xl);
  }
  
  .media-hero-subtitle {
    font-size: var(--text-base);
  }
  
  .media-filter {
    padding: var(--space-6) 0;
  }
  
  .search-box input {
    font-size: var(--text-sm);
  }
  
  .media-card {
    border-radius: var(--radius-lg);
  }
  
  .media-content {
    padding: var(--space-4);
  }
  
  .media-title {
    font-size: var(--text-lg);
  }
  
  .media-description {
    font-size: var(--text-sm);
  }
  
  .play-button-large {
    width: 60px;
    height: 60px;
    font-size: var(--text-2xl);
  }
  
  .media-cta {
    padding: var(--space-16) 0;
  }
  
  .cta-content h2 {
    font-size: var(--text-2xl);
  }
}

/* ===================================
   ACCESSIBILITY
   =================================== */

@media (prefers-reduced-motion: reduce) {
  .media-card,
  .filter-tab,
  .play-button-large,
  .video-modal-container {
    animation: none !important;
    transition: none !important;
  }
  
  .hero-gradient {
    animation: none !important;
  }
}

/* Focus styles */
.filter-tab:focus,
.media-card:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .media-card:hover {
    transform: none;
  }
  
  .media-card:active {
    transform: scale(0.98);
  }
  
  .filter-tab:hover {
    transform: none;
  }
}