/* explore.css — Public Explore page styles */

:root {
  --bg-primary: #1a1b26;
  --bg-secondary: #24253a;
  --bg-card: #2a2b3d;
  --bg-hover: #32334a;
  --fg-primary: #c0caf5;
  --fg-secondary: #a9b1d6;
  --fg-muted: #565f89;
  --fg-accent: #7aa2f7;
  --fg-heart: #f7768e;
  --fg-success: #9ece6a;
  --border: #3b3d57;
  --radius: 12px;
  --radius-sm: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ---- Header ---- */

.explore-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.explore-brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--fg-accent);
  text-decoration: none;
}

.explore-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg-primary);
}

.explore-login-link {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  text-decoration: none;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.explore-login-link:hover {
  color: var(--fg-accent);
  border-color: var(--fg-accent);
}

/* ---- Tabs ---- */

.explore-tabs {
  display: flex;
  gap: 0;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.explore-tab {
  padding: 12px 20px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--fg-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.explore-tab:hover {
  color: var(--fg-secondary);
}
.explore-tab.active {
  color: var(--fg-accent);
  border-bottom-color: var(--fg-accent);
}

/* ---- Grid ---- */

.explore-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .explore-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 16px;
  }
}

@media (max-width: 560px) {
  .explore-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 12px;
  }
}

/* ---- Card ---- */

.explore-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--border);
}
.explore-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.explore-card-preview {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-primary);
}

.explore-card-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Video lazy loading wrapper */
.explore-video-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}
.explore-video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.explore-video-wrapper .video-lazy-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.explore-video-wrapper video.lazy-loaded + .video-lazy-placeholder {
  display: none;
}

.explore-card-text-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  font-size: 0.85rem;
  color: var(--fg-secondary);
  text-align: center;
  line-height: 1.5;
  height: 100%;
}

/* Overlay for minimal info on media-only cards */
.explore-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
  padding: 40px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.explore-card-overlay .explore-card-artist {
  font-size: 0.85rem;
  color: #fff;
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  margin-bottom: 0;
}

.explore-card-overlay .explore-card-footer {
  justify-content: flex-start;
}

.explore-card-overlay .heart-btn {
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
}

.explore-card-overlay .heart-btn:hover {
  color: var(--fg-heart);
  background: rgba(247, 118, 142, 0.2);
}

.explore-card-overlay .heart-btn.hearted {
  color: var(--fg-heart);
}

.explore-card-body {
  padding: 12px 14px;
}

.explore-card-artist {
  font-size: 0.8rem;
  color: var(--fg-accent);
  font-weight: 600;
  margin-bottom: 4px;
}

.explore-card-theme {
  font-size: 0.9rem;
  color: var(--fg-primary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 8px;
}

.explore-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.explore-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--fg-muted);
}

.explore-card-platform {
  background: rgba(122, 162, 247, 0.1);
  color: var(--fg-accent);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
}

/* ---- Heart Button ---- */

.heart-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--fg-muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.heart-btn:hover {
  color: var(--fg-heart);
  background: rgba(247, 118, 142, 0.1);
}
.heart-btn.hearted {
  color: var(--fg-heart);
}
.heart-btn.hearted .heart-icon {
  animation: heartPop 0.3s ease;
}

.heart-btn-large {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(247, 118, 142, 0.1);
  border: 1px solid rgba(247, 118, 142, 0.2);
  color: var(--fg-secondary);
  cursor: pointer;
  font-size: 1rem;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.heart-btn-large:hover {
  color: var(--fg-heart);
  background: rgba(247, 118, 142, 0.15);
}
.heart-btn-large.hearted {
  color: var(--fg-heart);
  border-color: var(--fg-heart);
}

@keyframes heartPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* ---- Load More ---- */

.explore-load-more {
  text-align: center;
  padding: 20px;
}

.explore-load-btn {
  background: var(--bg-card);
  color: var(--fg-accent);
  border: 1px solid var(--border);
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.explore-load-btn:hover {
  background: var(--bg-hover);
  border-color: var(--fg-accent);
}

/* ---- Loading Spinner ---- */

.explore-loading {
  display: flex;
  justify-content: center;
  padding: 40px;
}

.explore-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--fg-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ---- Empty State ---- */

.explore-empty {
  text-align: center;
  padding: 60px 24px;
  color: var(--fg-muted);
  font-size: 1rem;
}

/* ---- Detail Overlay ---- */

.explore-detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.explore-detail-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
}

.explore-detail-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  z-index: 1;
  border: 1px solid var(--border);
}

.explore-detail-close {
  position: fixed;
  top: 16px;
  right: 20px;
  background: rgba(0, 0, 0, 0.5);
  color: var(--fg-primary);
  border: none;
  font-size: 1.8rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.explore-detail-close:hover {
  background: rgba(255, 255, 255, 0.15);
}

.explore-detail-media-wrap {
  width: 100%;
  background: #000;
}

.explore-detail-media {
  width: 100%;
  max-height: 50vh;
  object-fit: contain;
  display: block;
}

.explore-detail-body {
  padding: 20px;
}

.explore-detail-theme {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 6px;
}

.explore-detail-artist {
  font-size: 0.9rem;
  color: var(--fg-accent);
  font-weight: 500;
  margin-bottom: 4px;
}

.explore-detail-date {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-bottom: 16px;
}

.explore-detail-caption {
  background: var(--bg-primary);
  padding: 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--fg-secondary);
  line-height: 1.6;
  white-space: pre-wrap;
  margin-bottom: 16px;
  max-height: 200px;
  overflow-y: auto;
}

.explore-detail-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.share-link-btn {
  background: rgba(122, 162, 247, 0.1);
  color: var(--fg-accent);
  border: 1px solid rgba(122, 162, 247, 0.2);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.share-link-btn:hover {
  background: rgba(122, 162, 247, 0.2);
}

/* ---- Toast ---- */

.explore-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--fg-success);
  color: var(--bg-primary);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 300;
  animation: toastIn 0.3s ease;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}