/* ============================================
   PixelCalm — Reusable Components
   ============================================ */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 0 20px var(--glow-primary);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  box-shadow: 0 0 30px var(--glow-primary), 0 0 60px rgba(124, 92, 252, 0.15);
  transform: translateY(-1px);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  background: rgba(124, 92, 252, 0.08);
  border-color: var(--border-hover);
  transform: translateY(-1px);
  color: var(--text-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-4);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(124, 92, 252, 0.06);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  backdrop-filter: blur(10px);
}

.btn-icon:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-default);
  color: var(--text-primary);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  backdrop-filter: blur(10px);
}

.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 30px var(--glow-primary);
}

.card-thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-secondary);
}

.card-thumbnail canvas {
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  transition: opacity 0.4s ease-out;
}

.card-thumbnail canvas.loaded {
  opacity: 1;
}

.card-thumbnail-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(2, 0, 16, 0.6) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card:hover .card-thumbnail-overlay {
  opacity: 1;
}

.card-thumbnail-play {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(124, 92, 252, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--glow-primary);
  transform: scale(0.8);
  transition: transform var(--duration-normal) var(--ease-out);
}

.card:hover .card-thumbnail-play {
  transform: scale(1);
}

.card-body {
  padding: var(--space-4) var(--space-5);
}

.card-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-author {
  font-size: var(--text-xs);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.card-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  line-height: 1.4;
}

.badge-default {
  background: rgba(124, 92, 252, 0.1);
  border: 1px solid var(--border-subtle);
  color: var(--color-primary-light);
}

.badge-accent {
  background: rgba(90, 228, 255, 0.1);
  border: 1px solid var(--border-accent);
  color: var(--color-accent);
}

.badge-live {
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.2);
  color: var(--color-success);
}

.badge-live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 8px var(--color-success);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ── Tags ── */
.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--text-muted);
  background: rgba(124, 92, 252, 0.06);
  border: 1px solid var(--border-subtle);
  transition: all var(--duration-fast) var(--ease-out);
  cursor: pointer;
}

.tag:hover {
  background: rgba(124, 92, 252, 0.12);
  border-color: var(--border-default);
  color: var(--text-secondary);
}

.tag.active {
  background: rgba(124, 92, 252, 0.15);
  border-color: var(--color-primary);
  color: var(--color-primary-light);
}

/* ── Section Titles ── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
}

.section-subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* ── Stats ── */
.stat {
  text-align: center;
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-top: var(--space-1);
}

/* ── Grid ── */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); min-height: 380px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ── Dividers ── */
.divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: var(--space-8) 0;
}

/* ── Icon (inline SVG placeholder) ── */
.icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Tooltip ── */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--text-primary);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-fast) var(--ease-out);
  z-index: var(--z-overlay);
}

.tooltip:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Skeleton Loader ── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 0%, rgba(30, 26, 60, 0.6) 50%, var(--bg-tertiary) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  padding: var(--space-3) var(--space-5);
  background: rgba(18, 14, 46, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(124, 92, 252, 0.3);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transition: all var(--duration-normal) var(--ease-out);
  pointer-events: none;
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}