/* ============================================
   BENTO GRID - Task Discovery System
   ============================================ */

/* ----------------------------------------
   Section Container (full-width bg, constrained content)
   ---------------------------------------- */
.bento-section {
  padding: 80px 24px;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg) 100%);
  position: relative;
  overflow: hidden;
}

.bento-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.bento-header {
  text-align: center;
  margin-bottom: 48px;
}

.bento-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--primary);
  margin: 0 0 12px 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.bento-eyebrow::before,
.bento-eyebrow::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--primary);
  opacity: 0.4;
}

.bento-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin: 0 0 12px;
}

.bento-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin: 0;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* ----------------------------------------
   Category Filter Chips
   ---------------------------------------- */
.bento-categories {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: var(--space-2);
  justify-content: center;
}

.bento-categories::-webkit-scrollbar {
  display: none;
}

.bento-chip {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--bg);
  cursor: pointer;
  white-space: nowrap;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.bento-chip:hover {
  border-color: var(--primary);
  color: var(--text);
  background: var(--card-hover);
}

.bento-chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 12px rgba(var(--primary-rgb), 0.3);
}

.bento-chip__count {
  font-size: 0.7rem;
  opacity: 0.6;
  margin-left: 4px;
}

.bento-chip.active .bento-chip__count {
  opacity: 0.8;
}

/* ----------------------------------------
   Bento Grid Layout
   ---------------------------------------- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  grid-auto-flow: dense;
  gap: var(--space-3);
}

/* ----------------------------------------
   Task Card
   ---------------------------------------- */
.task-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--card);
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  /* Scroll entrance */
  opacity: 0;
  transform: translateY(20px);
}

.task-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow var(--transition-base),
              border-color var(--transition-base);
}

.task-card.visible:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(var(--primary-rgb), 0.1);
  border-color: rgba(var(--primary-rgb), 0.2);
}

/* Card sizing */
.task-card--hero {
  grid-column: span 2;
  grid-row: span 2;
}

.task-card--featured {
  grid-column: span 2;
}

.task-card--tall {
  grid-row: span 2;
}

/* Images */
.task-card__before,
.task-card__after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.task-card__after {
  opacity: 0;
  transition: opacity 0.6s ease;
}

/* Desktop: hover crossfade */
.task-card:hover .task-card__after {
  opacity: 1;
}

/* Mobile: auto-crossfade when card enters viewport */
@media (hover: none) {
  .task-card .task-card__after {
    animation: none;
  }

  .task-card.visible .task-card__after {
    animation: mobileReveal 4s ease-in-out 0.3s infinite alternate;
  }
}

@keyframes mobileReveal {
  0%, 30% { opacity: 0; }
  50%, 80% { opacity: 1; }
  100% { opacity: 0; }
}

/* Info bar */
.task-card__info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px var(--space-4) var(--space-3);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.3) 60%, transparent 100%);
  color: #fff;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 2px;
  pointer-events: none;
}

.task-card__category {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.7;
  font-weight: 500;
}

.task-card__title {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.task-card--hero .task-card__title {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.task-card--featured .task-card__title,
.task-card--tall .task-card__title {
  font-size: 1.05rem;
  letter-spacing: -0.015em;
}

/* Hidden cards (filtered out) */
.task-card[hidden] {
  display: none;
}

/* ----------------------------------------
   Task Preview Overlay
   ---------------------------------------- */
.task-preview-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.task-preview-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.task-preview-panel {
  background: var(--card);
  border-radius: var(--radius-xl);
  max-width: 480px;
  width: 92%;
  max-height: 90vh;
  overflow: auto;
  padding: 28px 24px 24px;
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-subtle);
  position: relative;
  transform: scale(0.92) translateY(12px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.task-preview-overlay.active .task-preview-panel {
  transform: scale(1) translateY(0);
}

/* Close button */
.task-preview__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.task-preview__close:hover {
  background: var(--bg-secondary);
  color: var(--text);
}

/* Before/after images */
.task-preview__images {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.task-preview__before,
.task-preview__after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.task-preview__after {
  opacity: 0;
  transition: opacity 2s ease;
}

.task-preview__after.revealed {
  opacity: 1;
}

/* Title */
.task-preview__title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0 0 var(--space-5);
  text-align: center;
}

/* Action buttons */
.task-preview__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.task-preview__cta-primary {
  width: 100%;
  padding: 16px var(--space-6);
  border-radius: var(--radius-md);
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: -0.01em;
  transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.task-preview__cta-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 20px rgba(var(--primary-rgb), 0.35);
  transform: translateY(-1px);
}

.task-preview__cta-primary:active {
  transform: translateY(0);
}

/* Badge */
.task-preview__badge {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-dimmed);
  letter-spacing: 0.01em;
}

/* ----------------------------------------
   Coach Marks
   ---------------------------------------- */
.coach-mark {
  position: absolute;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-3) var(--space-4);
  z-index: 1001;
  max-width: 280px;
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  animation: coachMarkIn 0.3s ease forwards;
}

.coach-mark--exiting {
  animation: coachMarkOut 0.3s ease forwards;
}

.coach-mark__text {
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.4;
}

.coach-mark__close {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: none;
  background: none;
  color: var(--text-dimmed);
  font-size: 1rem;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.coach-mark__close:hover {
  color: var(--text);
}

.coach-mark[data-arrow="bottom"]::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  width: 12px;
  height: 12px;
  background: var(--card);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transform: translateX(-50%) rotate(45deg);
}

.coach-mark[data-arrow="top"]::after {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  width: 12px;
  height: 12px;
  background: var(--card);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
  transform: translateX(-50%) rotate(45deg);
}

@keyframes coachMarkIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes coachMarkOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(8px); }
}

/* ----------------------------------------
   Skeleton Loaders
   ---------------------------------------- */
.task-card--skeleton {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  opacity: 1;
  transform: none;
}

.task-card--skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--bg-secondary) 50%,
    transparent 100%
  );
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ----------------------------------------
   Load More Button
   ---------------------------------------- */
.bento-load-more {
  display: block;
  width: 100%;
  max-width: 400px;
  margin: var(--space-8) auto 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.bento-load-more:hover {
  border-color: var(--primary);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.bento-load-more[hidden] {
  display: none;
}

/* ----------------------------------------
   Responsive Design
   ---------------------------------------- */

/* Tablet */
@media (max-width: 1024px) {
  .bento-section {
    padding: 60px 20px;
  }

  .bento-title {
    font-size: 2rem;
  }

  .bento-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 180px;
  }

  .task-card--hero {
    grid-column: span 2;
    grid-row: span 2;
  }

  .task-card--tall {
    grid-row: span 2;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .bento-section {
    padding: 48px var(--space-4);
  }

  .bento-title {
    font-size: 1.5rem;
  }

  .bento-subtitle {
    font-size: 0.95rem;
  }

  .bento-categories {
    justify-content: flex-start;
    padding-left: var(--space-1);
    margin-bottom: var(--space-6);
  }

  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 160px;
  }

  .task-card--hero,
  .task-card--featured {
    grid-column: span 2;
  }

  .task-card--hero {
    grid-row: span 2;
  }

  .task-card--tall {
    grid-row: span 2;
  }

  /* Mobile: hide category on small cards */
  .task-card:not(.task-card--hero) .task-card__category {
    display: none;
  }

  /* Mobile: Preview as bottom sheet */
  .task-preview-overlay {
    align-items: flex-end;
  }

  .task-preview-panel {
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    max-width: none;
    width: 100%;
    max-height: 85vh;
    padding: 24px 20px calc(20px + var(--safe-bottom));
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .task-preview-overlay.active .task-preview-panel {
    transform: translateY(0);
  }

  /* Bottom sheet drag handle */
  .task-preview-panel::before {
    content: '';
    display: block;
    width: 36px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin: 0 auto 16px;
  }
}