/* Phong 360 Library UI — v4.0 Styles */

/* ============================================================
   CSS Custom Properties — Dark mode default
   ============================================================ */

:root {
  --p360-bg: #1a1a1a;
  --p360-bg-elevated: #242424;
  --p360-text: #e2e8f0;
  --p360-text-muted: #94a3b8;
  --p360-text-dim: #64748b;
  --p360-border: rgba(255, 255, 255, 0.08);
  --p360-border-strong: rgba(255, 255, 255, 0.15);
  --p360-accent: #e13e13;
  --p360-accent-hover: #f06040;
  --p360-accent-active: rgba(225, 62, 19, 0.25);
  --p360-accent-border: rgba(225, 62, 19, 0.6);
  --p360-hover-bg: rgba(255, 255, 255, 0.05);
  --p360-thumbnail-radius: 4px;
  --p360-sidebar-width: 320px;
  --p360-badge-bg: rgba(0, 0, 0, 0.6);
  --p360-badge-text: #ffffff;
  --p360-overlay-bg: rgba(0, 0, 0, 0.5);
  --p360-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --p360-transition: 0.2s ease;
}

/* ============================================================
   Light Theme
   ============================================================ */

[data-theme="light"] {
  --p360-bg: #ffffff;
  --p360-bg-elevated: #fafafa;
  --p360-text: #1e293b;
  --p360-text-muted: #64748b;
  --p360-text-dim: #94a3b8;
  --p360-border: rgba(0, 0, 0, 0.08);
  --p360-border-strong: rgba(0, 0, 0, 0.15);
  --p360-hover-bg: rgba(0, 0, 0, 0.05);
  --p360-badge-bg: rgba(255, 255, 255, 0.85);
  --p360-badge-text: #1e293b;
  --p360-overlay-bg: rgba(0, 0, 0, 0.3);
  --p360-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* ============================================================
   Sidebar Container
   ============================================================ */

.p360-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--p360-sidebar-width);
  max-width: 90vw;
  background: var(--p360-bg);
  color: var(--p360-text);
  z-index: 200;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateX(100%);
  transition: transform 0.3s ease-in-out;
  box-shadow: var(--p360-shadow);
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
}

.p360-sidebar.p360-sidebar--open {
  transform: translateX(0);
}

.p360-sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: var(--p360-overlay-bg);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.p360-sidebar-backdrop.p360-sidebar-backdrop--visible {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
   Sidebar Toggle Button
   ============================================================ */

.p360-sidebar-toggle {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 201;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.5);
  color: rgba(255, 255, 255, 0.8);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--p360-transition);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.p360-sidebar-toggle:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(0, 0, 0, 0.7);
}

/* ============================================================
   Context Header (profile / discover / local)
   ============================================================ */

.p360-header {
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--p360-border);
  flex-shrink: 0;
}

.p360-header-profile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.p360-header-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--p360-border-strong);
  flex-shrink: 0;
}

.p360-header-info {
  flex: 1;
  min-width: 0;
}

.p360-header-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--p360-text);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.p360-header-subtitle {
  font-size: 13px;
  color: var(--p360-text-muted);
  margin: 2px 0 0;
}

.p360-header-links {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.p360-header-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--p360-text-muted);
  text-decoration: none;
  border: 1px solid var(--p360-border);
  border-radius: 12px;
  transition: all var(--p360-transition);
}

.p360-header-link:hover {
  color: var(--p360-accent);
  border-color: var(--p360-accent-border);
  background: var(--p360-accent-active);
}

.p360-header-link i {
  font-size: 14px;
}

/* ============================================================
   Scrollable Content Area
   ============================================================ */

.p360-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.p360-content::-webkit-scrollbar {
  width: 6px;
}

.p360-content::-webkit-scrollbar-track {
  background: transparent;
}

.p360-content::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

[data-theme="light"] .p360-content {
  scrollbar-color: rgba(0, 0, 0, 0.15) transparent;
}

[data-theme="light"] .p360-content::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.15);
}

/* ============================================================
   Section Headings
   ============================================================ */

.p360-section {
  margin-bottom: 4px;
}

.p360-section-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--p360-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  user-select: none;
  transition: all var(--p360-transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.p360-section-heading:hover {
  color: var(--p360-text);
  background: var(--p360-hover-bg);
}

.p360-section-heading i {
  font-size: 16px;
  color: var(--p360-accent);
}

.p360-section-heading-count {
  margin-left: auto;
  font-size: 11px;
  font-weight: 500;
  color: var(--p360-text-dim);
  background: var(--p360-hover-bg);
  padding: 2px 8px;
  border-radius: 10px;
}

.p360-section-chevron {
  margin-left: 4px;
  font-size: 10px;
  transition: transform 0.2s ease;
  color: var(--p360-text-dim);
}

.p360-section--collapsed .p360-section-chevron {
  transform: rotate(-90deg);
}

.p360-section-body {
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.p360-section--collapsed .p360-section-body {
  max-height: 0 !important;
}

/* ============================================================
   Grid Template
   ============================================================ */

.p360-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 6px;
  padding: 4px 12px 12px;
}

/* ============================================================
   Thumbnail (shared across templates)
   ============================================================ */

.p360-thumbnail {
  position: relative;
  border-radius: var(--p360-thumbnail-radius);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--p360-transition);
  background: var(--p360-hover-bg);
  aspect-ratio: 2 / 1;
}

.p360-thumbnail:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.p360-thumbnail:active {
  transform: scale(0.98);
}

.p360-thumbnail--selected {
  outline: 2px solid var(--p360-accent);
  outline-offset: 1px;
}

.p360-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.3s ease;
}

.p360-thumbnail img[data-src] {
  opacity: 0;
}

.p360-thumbnail img.p360-loaded {
  opacity: 1;
}

/* ============================================================
   Badges (emoji reaction overlays on thumbnails)
   ============================================================ */

.p360-badges {
  position: absolute;
  bottom: 4px;
  left: 4px;
  display: flex;
  gap: 3px;
  flex-wrap: wrap;
  max-width: calc(100% - 8px);
}

.p360-badge {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px 5px;
  background: var(--p360-badge-bg);
  color: var(--p360-badge-text);
  border-radius: 8px;
  font-size: 10px;
  line-height: 1;
  cursor: pointer;
  transition: all var(--p360-transition);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.p360-badge:hover {
  transform: scale(1.1);
  background: rgba(0, 0, 0, 0.8);
}

.p360-badge-icon {
  font-size: 12px;
}

.p360-badge-count {
  font-size: 9px;
  font-weight: 600;
  font-family: system-ui, -apple-system, sans-serif;
}

/* ============================================================
   Feed Template
   ============================================================ */

.p360-feed {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 4px 12px 12px;
}

.p360-feed-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--p360-transition);
  background: var(--p360-hover-bg);
}

.p360-feed-item:hover {
  background: var(--p360-border);
}

.p360-feed-item img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  display: block;
}

.p360-feed-item-info {
  padding: 8px 10px;
}

.p360-feed-item-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--p360-text);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.p360-feed-item-meta {
  font-size: 11px;
  color: var(--p360-text-muted);
  margin: 2px 0 0;
}

/* ============================================================
   Accordion Template
   ============================================================ */

.p360-accordion {
  padding: 0 12px 8px;
}

.p360-accordion-trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--p360-border);
  border-radius: 8px;
  background: var(--p360-hover-bg);
  color: var(--p360-text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: all var(--p360-transition);
  text-align: left;
  font-family: inherit;
}

.p360-accordion-trigger:hover {
  background: var(--p360-border);
  border-color: var(--p360-border-strong);
}

.p360-accordion-trigger i {
  font-size: 18px;
  color: var(--p360-accent);
}

.p360-accordion-chevron {
  margin-left: auto;
  font-size: 12px;
  color: var(--p360-text-dim);
  transition: transform 0.2s ease;
}

.p360-accordion--open .p360-accordion-chevron {
  transform: rotate(180deg);
}

.p360-accordion-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
}

.p360-accordion--open .p360-accordion-body {
  max-height: 5000px;
}

.p360-accordion-inner {
  padding: 8px 0 0;
}

/* ============================================================
   Hero Template
   ============================================================ */

.p360-hero {
  position: relative;
  margin: 4px 12px 12px;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 16 / 9;
}

.p360-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.p360-hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px 16px 16px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
}

.p360-hero-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin: 0;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.p360-hero-subtitle {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  margin: 4px 0 0;
}

/* ============================================================
   List Template
   ============================================================ */

.p360-list {
  display: flex;
  flex-direction: column;
  padding: 4px 12px 12px;
}

.p360-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--p360-transition);
}

.p360-list-item:hover {
  background: var(--p360-hover-bg);
}

.p360-list-item--selected {
  background: var(--p360-accent-active);
  border: 1px solid var(--p360-accent-border);
}

.p360-list-item-thumb {
  width: 64px;
  height: 32px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
}

.p360-list-item-info {
  flex: 1;
  min-width: 0;
}

.p360-list-item-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--p360-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.p360-list-item-meta {
  font-size: 11px;
  color: var(--p360-text-muted);
}

/* ============================================================
   Carousel Template
   ============================================================ */

.p360-carousel {
  padding: 4px 0 12px;
}

.p360-carousel-track {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px 12px;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.p360-carousel-track::-webkit-scrollbar {
  display: none;
}

.p360-carousel-item {
  flex: 0 0 200px;
  scroll-snap-align: start;
}

.p360-carousel-item .p360-thumbnail {
  width: 200px;
  height: 100px;
}

/* ============================================================
   Avatar Row Template (horizontal circular avatars)
   ============================================================ */

.p360-avatar-row {
  display: flex;
  gap: 12px;
  padding: 8px 12px 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.p360-avatar-row::-webkit-scrollbar {
  display: none;
}

.p360-avatar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--p360-transition);
}

.p360-avatar-item:hover {
  transform: scale(1.05);
}

.p360-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--p360-border-strong);
  transition: border-color var(--p360-transition);
}

.p360-avatar-item:hover .p360-avatar {
  border-color: var(--p360-accent);
}

.p360-avatar-name {
  font-size: 11px;
  color: var(--p360-text-muted);
  text-align: center;
  max-width: 64px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   Avatar Grid Template (grid of avatar cards)
   ============================================================ */

.p360-avatar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
  padding: 4px 12px 12px;
}

.p360-avatar-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 8px;
  border-radius: 8px;
  border: 1px solid var(--p360-border);
  background: var(--p360-hover-bg);
  cursor: pointer;
  transition: all var(--p360-transition);
  gap: 8px;
}

.p360-avatar-card:hover {
  border-color: var(--p360-accent-border);
  background: var(--p360-accent-active);
}

.p360-avatar-card .p360-avatar {
  width: 48px;
  height: 48px;
}

.p360-avatar-card-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--p360-text);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.p360-avatar-card-meta {
  font-size: 11px;
  color: var(--p360-text-muted);
}

/* ============================================================
   Empty State
   ============================================================ */

.p360-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
  gap: 12px;
}

.p360-empty-state i {
  font-size: 48px;
  color: var(--p360-text-dim);
  opacity: 0.5;
}

.p360-empty-state-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--p360-text-muted);
}

.p360-empty-state-message {
  font-size: 13px;
  color: var(--p360-text-dim);
  max-width: 240px;
  line-height: 1.5;
}

/* ============================================================
   Theme Toggle Button
   ============================================================ */

.p360-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--p360-border);
  border-radius: 8px;
  background: transparent;
  color: var(--p360-text-muted);
  cursor: pointer;
  font-size: 18px;
  transition: all var(--p360-transition);
}

.p360-theme-toggle:hover {
  color: var(--p360-text);
  border-color: var(--p360-border-strong);
  background: var(--p360-hover-bg);
}

/* ============================================================
   Toolbar (inside sidebar)
   ============================================================ */

.p360-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--p360-border);
  flex-shrink: 0;
}

.p360-toolbar-spacer {
  flex: 1;
}

.p360-resolution-select {
  height: 36px;
  font-size: 12px;
  font-weight: 500;
  padding: 0 28px 0 10px;
  background: var(--p360-hover-bg);
  color: var(--p360-text);
  border: 1px solid var(--p360-border);
  border-radius: 8px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%2394a3b8' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  cursor: pointer;
  font-family: inherit;
  outline: none;
  transition: all var(--p360-transition);
}

.p360-resolution-select:hover {
  border-color: var(--p360-border-strong);
}

.p360-resolution-select:focus {
  border-color: var(--p360-accent-border);
}

.p360-toolbar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--p360-border);
  border-radius: 8px;
  background: transparent;
  color: var(--p360-text-muted);
  cursor: pointer;
  font-size: 18px;
  transition: all var(--p360-transition);
  flex-shrink: 0;
}

.p360-toolbar-btn:hover {
  color: var(--p360-text);
  border-color: var(--p360-border-strong);
  background: var(--p360-hover-bg);
}

.p360-toolbar-btn.active {
  color: var(--p360-accent);
  border-color: var(--p360-accent-border);
  background: var(--p360-accent-bg, transparent);
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 480px) {
  .p360-sidebar {
    width: 100vw;
    max-width: 100vw;
  }

  .p360-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 4px;
    padding: 4px 8px 8px;
  }

  .p360-carousel-item {
    flex: 0 0 160px;
  }

  .p360-carousel-item .p360-thumbnail {
    width: 160px;
    height: 80px;
  }

  .p360-hero {
    margin: 4px 8px 8px;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .p360-sidebar {
    width: 80vw;
  }
}

/* ============================================================
   Animations
   ============================================================ */

@keyframes p360-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes p360-slide-up {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.p360-section {
  animation: p360-slide-up 0.2s ease-out;
}