/* APFU - Enlaces de Interés - Estilos Frontend */
:root {
  --apfu-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --apfu-font-heading: 'Outfit', 'Inter', -apple-system, sans-serif;
  --apfu-primary: #1e40af;
  --apfu-primary-hover: #1d4ed8;
  --apfu-primary-light: #eff6ff;
  --apfu-navy: #0f172a;
  --apfu-slate-800: #1e293b;
  --apfu-slate-600: #475569;
  --apfu-slate-500: #64748b;
  --apfu-slate-400: #94a3b8;
  --apfu-slate-200: #e2e8f0;
  --apfu-slate-100: #f1f5f9;
  --apfu-slate-50: #f8fafc;
  --apfu-card-bg: #ffffff;
  --apfu-card-border: #e2e8f0;
  --apfu-card-hover-border: #93c5fd;
  --apfu-shadow-sm: 0 2px 8px -2px rgba(15, 23, 42, 0.05);
  --apfu-shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
  --apfu-shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
  --apfu-radius-sm: 8px;
  --apfu-radius-md: 14px;
  --apfu-radius-lg: 20px;
  --apfu-radius-pill: 9999px;
  --apfu-transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.apfu-enlaces-wrapper {
  font-family: var(--apfu-font);
  color: var(--apfu-navy);
  max-width: 1240px;
  margin: 0 auto;
  padding: 30px 16px;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

.apfu-enlaces-wrapper *,
.apfu-enlaces-wrapper *::before,
.apfu-enlaces-wrapper *::after {
  box-sizing: border-box;
}

/* ==========================================================================
   Header & Hero
   ========================================================================== */
.apfu-enlaces-header {
  text-align: center;
  margin-bottom: 32px;
}

.apfu-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--apfu-primary-light);
  color: var(--apfu-primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  border-radius: var(--apfu-radius-pill);
  border: 1px solid #bfdbfe;
  margin-bottom: 14px;
}

.apfu-badge-dot {
  width: 8px;
  height: 8px;
  background: #2563eb;
  border-radius: 50%;
  animation: apfuPulse 2s infinite ease-in-out;
}

@keyframes apfuPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.apfu-enlaces-main-title {
  font-family: var(--apfu-font-heading);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  color: var(--apfu-navy);
  margin: 0 0 12px 0;
  line-height: 1.25;
  letter-spacing: -0.5px;
}

.apfu-enlaces-main-subtitle {
  font-size: clamp(15px, 2vw, 17px);
  color: var(--apfu-slate-600);
  max-width: 760px;
  margin: 0 auto 20px auto;
  line-height: 1.6;
}

.apfu-stats-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.apfu-stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  padding: 8px 16px;
  border-radius: var(--apfu-radius-pill);
  border: 1px solid var(--apfu-slate-200);
  box-shadow: var(--apfu-shadow-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--apfu-slate-600);
}

.apfu-stat-icon-svg {
  width: 16px;
  height: 16px;
  color: var(--apfu-primary);
}

.apfu-stat-num {
  font-weight: 700;
  color: var(--apfu-navy);
}

/* ==========================================================================
   Toolbar: Search, Filters & View Options
   ========================================================================== */
.apfu-toolbar-card {
  background: #ffffff;
  border: 1px solid var(--apfu-slate-200);
  border-radius: var(--apfu-radius-md);
  padding: 16px 20px;
  margin-bottom: 28px;
  box-shadow: var(--apfu-shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.apfu-search-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.apfu-search-input-wrap {
  position: relative;
  flex: 1 1 320px;
  min-width: 260px;
}

.apfu-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--apfu-slate-400);
  pointer-events: none;
}

.apfu-search-input {
  width: 100%;
  padding: 12px 38px 12px 42px;
  font-family: var(--apfu-font);
  font-size: 14px;
  color: var(--apfu-navy);
  background: var(--apfu-slate-50);
  border: 1.5px solid var(--apfu-slate-200);
  border-radius: var(--apfu-radius-pill);
  outline: none;
  transition: var(--apfu-transition);
}

.apfu-search-input:focus {
  background: #ffffff;
  border-color: var(--apfu-primary);
  box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.12);
}

.apfu-search-clear {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--apfu-slate-200);
  color: var(--apfu-slate-600);
  border: none;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: 14px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--apfu-transition);
}

.apfu-search-clear:hover {
  background: var(--apfu-slate-400);
  color: #ffffff;
}

.apfu-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.apfu-select-wrapper {
  position: relative;
}

.apfu-select {
  appearance: none;
  background: var(--apfu-slate-50);
  border: 1.5px solid var(--apfu-slate-200);
  border-radius: var(--apfu-radius-pill);
  padding: 10px 32px 10px 14px;
  font-family: var(--apfu-font);
  font-size: 13px;
  font-weight: 600;
  color: var(--apfu-slate-800);
  cursor: pointer;
  outline: none;
  transition: var(--apfu-transition);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23475569'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
}

.apfu-select:focus,
.apfu-select:hover {
  border-color: var(--apfu-primary);
  background-color: #ffffff;
}

.apfu-layout-switcher {
  display: inline-flex;
  background: var(--apfu-slate-100);
  padding: 4px;
  border-radius: var(--apfu-radius-pill);
  gap: 2px;
}

.apfu-layout-btn {
  background: transparent;
  border: none;
  padding: 6px 10px;
  border-radius: var(--apfu-radius-pill);
  color: var(--apfu-slate-500);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--apfu-transition);
}

.apfu-layout-btn svg {
  width: 16px;
  height: 16px;
}

.apfu-layout-btn.active {
  background: #ffffff;
  color: var(--apfu-primary);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

/* Category Filter Chips */
.apfu-categories-scroll {
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--apfu-slate-200) transparent;
}

.apfu-categories-scroll::-webkit-scrollbar {
  height: 4px;
}
.apfu-categories-scroll::-webkit-scrollbar-thumb {
  background: var(--apfu-slate-200);
  border-radius: 4px;
}

.apfu-categories-track {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: max-content;
}

.apfu-cat-pill {
  background: var(--apfu-slate-50);
  border: 1px solid var(--apfu-slate-200);
  color: var(--apfu-slate-600);
  padding: 7px 14px;
  border-radius: var(--apfu-radius-pill);
  font-family: var(--apfu-font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--apfu-transition);
  white-space: nowrap;
}

.apfu-cat-count {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--apfu-slate-200);
  color: var(--apfu-slate-600);
  font-weight: 700;
}

.apfu-cat-pill:hover {
  background: var(--apfu-primary-light);
  border-color: #bfdbfe;
  color: var(--apfu-primary);
}

.apfu-cat-pill.active {
  background: var(--apfu-primary);
  border-color: var(--apfu-primary);
  color: #ffffff;
}

.apfu-cat-pill.active .apfu-cat-count {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

/* ==========================================================================
   Cards Grid Layout
   ========================================================================== */
.apfu-cards-container.apfu-layout-grid {
  display: grid;
  gap: 24px;
}

.apfu-cards-container.apfu-cols-3 {
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}

.apfu-cards-container.apfu-cols-2 {
  grid-template-columns: repeat(auto-fill, minmax(460px, 1fr));
}

.apfu-cards-container.apfu-cols-4 {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* ==========================================================================
   Card Styling
   ========================================================================== */
.apfu-link-card {
  background: var(--apfu-card-bg);
  border: 1.5px solid var(--apfu-card-border);
  border-radius: var(--apfu-radius-md);
  box-shadow: var(--apfu-shadow-sm);
  transition: var(--apfu-transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.apfu-link-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #1e40af, #0284c7, #38bdf8);
  opacity: 0;
  transition: var(--apfu-transition);
}

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

.apfu-link-card:hover::before {
  opacity: 1;
}

.apfu-card-inner {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Card Top Bar */
.apfu-card-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}

.apfu-card-badges-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.apfu-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: var(--apfu-radius-pill);
  letter-spacing: 0.3px;
  display: inline-flex;
  align-items: center;
}

.apfu-badge-blue { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }
.apfu-badge-purple { background: #f3e8ff; color: #7e22ce; border: 1px solid #e9d5ff; }
.apfu-badge-emerald { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.apfu-badge-red { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.apfu-badge-amber { background: #fffbeb; color: #b45309; border: 1px solid #fde68a; }
.apfu-badge-indigo { background: #eef2ff; color: #4338ca; border: 1px solid #c7d2fe; }
.apfu-badge-gold { background: #fefce8; color: #a16207; border: 1px solid #fef08a; }

.apfu-type-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--apfu-slate-500);
  background: var(--apfu-slate-100);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid var(--apfu-slate-200);
}

.apfu-featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
  padding: 3px 8px;
  border-radius: var(--apfu-radius-pill);
  font-size: 11px;
  font-weight: 700;
}

/* Card Header Flex */
.apfu-card-header-flex {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.apfu-link-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--apfu-radius-sm);
  background: var(--apfu-slate-50);
  border: 1px solid var(--apfu-slate-200);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--apfu-transition);
}

.apfu-link-card:hover .apfu-link-icon-box {
  background: var(--apfu-primary-light);
  border-color: #bfdbfe;
  transform: scale(1.05);
}

.apfu-card-title-wrap {
  flex: 1;
}

.apfu-card-title {
  font-family: var(--apfu-font-heading);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 4px 0;
}

.apfu-card-title-link {
  color: var(--apfu-navy);
  text-decoration: none;
  transition: var(--apfu-transition);
}

.apfu-card-title-link:hover {
  color: var(--apfu-primary);
}

.apfu-card-author {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 500;
  color: var(--apfu-slate-500);
}

/* Card Description */
.apfu-card-desc {
  font-size: 13.5px;
  color: var(--apfu-slate-600);
  line-height: 1.55;
  margin: 0 0 16px 0;
  flex-grow: 1;
}

/* Card Tags */
.apfu-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.apfu-tag-chip {
  font-size: 11px;
  color: var(--apfu-slate-500);
  background: var(--apfu-slate-50);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--apfu-slate-200);
}

/* Card Footer */
.apfu-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--apfu-slate-100);
  margin-top: auto;
}

.apfu-domain-info {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  color: var(--apfu-slate-400);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.apfu-btn-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.apfu-copy-btn-card {
  position: relative;
  background: var(--apfu-slate-100);
  border: 1px solid var(--apfu-slate-200);
  color: var(--apfu-slate-600);
  width: 34px;
  height: 34px;
  border-radius: var(--apfu-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--apfu-transition);
}

.apfu-copy-btn-card:hover {
  background: var(--apfu-slate-200);
  color: var(--apfu-navy);
}

.apfu-copy-tooltip {
  display: none;
}

.apfu-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--apfu-radius-sm);
  font-family: var(--apfu-font);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--apfu-transition);
  white-space: nowrap;
}

.apfu-btn-primary {
  background: var(--apfu-primary);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(30, 64, 175, 0.2);
}

.apfu-btn-primary:hover {
  background: var(--apfu-primary-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

.apfu-btn-video {
  background: #dc2626;
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(220, 38, 38, 0.2);
}

.apfu-btn-video:hover {
  background: #b91c1c;
  color: #ffffff;
  transform: translateY(-1px);
}

.apfu-btn-secondary {
  background: var(--apfu-slate-100);
  color: var(--apfu-slate-800);
  border: 1px solid var(--apfu-slate-200);
}

.apfu-btn-secondary:hover {
  background: var(--apfu-slate-200);
}

/* ==========================================================================
   List View (Compact Mode)
   ========================================================================== */
.apfu-cards-container.apfu-layout-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.apfu-cards-container.apfu-layout-list .apfu-link-card {
  flex-direction: row;
}

.apfu-cards-container.apfu-layout-list .apfu-card-inner {
  padding: 16px 20px;
  flex-direction: row;
  align-items: center;
  gap: 20px;
}

.apfu-cards-container.apfu-layout-list .apfu-card-topbar {
  margin-bottom: 0;
  order: 1;
  flex-shrink: 0;
  width: 140px;
  flex-direction: column;
  align-items: flex-start;
}

.apfu-cards-container.apfu-layout-list .apfu-card-header-flex {
  order: 2;
  margin-bottom: 0;
  flex: 1 1 300px;
}

.apfu-cards-container.apfu-layout-list .apfu-card-desc {
  order: 3;
  margin-bottom: 0;
  max-width: 320px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.apfu-cards-container.apfu-layout-list .apfu-card-tags {
  display: none;
}

.apfu-cards-container.apfu-layout-list .apfu-card-footer {
  order: 4;
  padding-top: 0;
  border-top: none;
  margin-top: 0;
  flex-shrink: 0;
}

/* ==========================================================================
   Empty State
   ========================================================================== */
.apfu-empty-state {
  text-align: center;
  padding: 60px 20px;
  background: #ffffff;
  border: 1.5px dashed var(--apfu-slate-200);
  border-radius: var(--apfu-radius-md);
  margin-top: 20px;
}

.apfu-empty-icon {
  margin-bottom: 16px;
}

.apfu-empty-title {
  font-family: var(--apfu-font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--apfu-navy);
  margin: 0 0 8px 0;
}

.apfu-empty-desc {
  font-size: 14px;
  color: var(--apfu-slate-500);
  max-width: 460px;
  margin: 0 auto 20px auto;
}

/* ==========================================================================
   Video Lightbox Modal
   ========================================================================== */
.apfu-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(4px);
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  box-sizing: border-box;
  animation: apfuFadeIn 0.2s ease-out;
}

@keyframes apfuFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.apfu-modal-container {
  background: #0f172a;
  border-radius: var(--apfu-radius-md);
  width: 100%;
  max-width: 860px;
  overflow: hidden;
  box-shadow: var(--apfu-shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.apfu-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: #1e293b;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.apfu-modal-title {
  font-family: var(--apfu-font-heading);
  font-size: 16px;
  font-weight: 600;
  color: #f8fafc;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.apfu-modal-close {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  transition: var(--apfu-transition);
}

.apfu-modal-close:hover {
  color: #ffffff;
}

.apfu-modal-body {
  padding: 0;
  background: #000000;
}

.apfu-video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 ratio */
  height: 0;
  overflow: hidden;
}

.apfu-video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Toast Notice for Clipboard Copy */
.apfu-toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #0f172a;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--apfu-radius-sm);
  box-shadow: var(--apfu-shadow-lg);
  font-family: var(--apfu-font);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 9999999;
  transform: translateY(30px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.apfu-toast-notice.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 768px) {
  .apfu-enlaces-wrapper {
    padding: 20px 12px;
  }

  .apfu-toolbar-card {
    padding: 14px;
  }

  .apfu-cards-container.apfu-cols-3,
  .apfu-cards-container.apfu-cols-2,
  .apfu-cards-container.apfu-cols-4 {
    grid-template-columns: 1fr;
  }

  .apfu-cards-container.apfu-layout-list .apfu-link-card {
    flex-direction: column;
  }

  .apfu-cards-container.apfu-layout-list .apfu-card-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .apfu-cards-container.apfu-layout-list .apfu-card-topbar {
    width: 100%;
    flex-direction: row;
    justify-content: space-between;
  }

  .apfu-cards-container.apfu-layout-list .apfu-card-desc {
    max-width: 100%;
    -webkit-line-clamp: 3;
  }

  .apfu-cards-container.apfu-layout-list .apfu-card-footer {
    width: 100%;
    padding-top: 12px;
    border-top: 1px solid var(--apfu-slate-100);
  }
}