/* Material Design 3 Styles for Media Visualizer */

/* Base Typography */
body {
  font-family: 'Roboto', sans-serif;
}

/* Header */
.md-header {
  background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, var(--md-sys-color-secondary) 100%);
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--md-elevation-2);
}

.md-header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.md-header-title {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--md-sys-color-on-primary);
  min-width: max-content;
}

.md-header-title h1 {
  font-size: clamp(18px, 5vw, 24px);
  font-weight: 500;
  margin: 0;
}

.md-header-title .material-symbols-rounded {
  font-size: 32px;
}

.md-header-search {
  flex: 1;
  min-width: 200px;
  max-width: 400px;
}

.search-field {
  width: 100%;
}

.md-header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sort-select {
  min-width: 180px;
}

.md-button-group {
  display: flex;
  gap: 4px;
  background-color: rgba(255, 255, 255, 0.1);
  padding: 4px;
  border-radius: 8px;
}

md-icon-button {
  --md-icon-button-icon-color: var(--md-sys-color-on-primary);
}

md-outlined-text-field {
  --md-sys-color-primary: var(--md-sys-color-on-primary);
}

/* Breadcrumb Navigation */
.md-breadcrumb {
  background-color: var(--md-sys-color-surface);
  border-bottom: 1px solid var(--md-sys-color-surface-variant);
  padding: 8px 16px;
  display: flex;
  gap: 4px;
  align-items: center;
  overflow-x: auto;
  flex-wrap: wrap;
}

.md-breadcrumb md-text-button {
  --md-text-button-label-text-color: var(--md-sys-color-primary);
}

/* Main Content */
.md-main {
  flex: 1;
  padding: 20px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* Loading State */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  gap: 16px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--md-sys-color-surface-variant);
  border-top-color: var(--md-sys-color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-state p {
  color: var(--md-sys-color-on-surface-variant);
  font-size: 16px;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  gap: 8px;
  color: var(--md-sys-color-on-surface-variant);
}

.empty-state .material-symbols-rounded {
  font-size: 64px;
  opacity: 0.5;
}

.empty-state h2 {
  font-size: 24px;
  font-weight: 500;
  margin: 0;
}

.empty-state p {
  font-size: 14px;
  margin: 0;
}

/* Media Grid */
.md-grid-large {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  animation: fadeIn 0.3s ease;
}

.md-grid-small {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
  animation: fadeIn 0.3s ease;
}

.md-grid-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: fadeIn 0.3s ease;
}

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

/* Media Card */
.md-media-card {
  background-color: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-surface-variant);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--md-elevation-1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.md-media-card:hover {
  box-shadow: var(--md-elevation-3);
  border-color: var(--md-sys-color-primary);
  transform: translateY(-2px);
}

.md-media-card.folder {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.05) 100%);
}

.md-media-card.folder:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(236, 72, 153, 0.1) 100%);
}

/* Media Thumbnail */
.md-media-thumbnail {
  position: relative;
  width: 100%;
  padding-bottom: 66.67%;
  background: linear-gradient(135deg, var(--md-sys-color-surface-variant) 0%, var(--md-sys-color-background) 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.md-media-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.md-media-thumbnail .icon {
  font-size: 48px;
  color: var(--md-sys-color-on-surface-variant);
  opacity: 0.6;
}

.md-media-thumbnail .play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.md-media-card:hover .play-overlay {
  opacity: 1;
}

.play-button {
  width: 56px;
  height: 56px;
  background-color: var(--md-sys-color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--md-elevation-3);
}

.play-button .material-symbols-rounded {
  color: var(--md-sys-color-on-primary);
  font-size: 32px;
}

/* Media Info */
.md-media-info {
  padding: 12px;
}

.md-media-info h3 {
  font-size: 14px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin: 0 0 4px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.md-media-info p {
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
  margin: 2px 0;
}

/* List View Card */
.md-media-card.list-mode {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
}

.md-media-card.list-mode .md-media-thumbnail {
  min-width: 80px;
  width: 80px;
  padding-bottom: 0;
  height: 60px;
}

.md-media-card.list-mode .md-media-info {
  flex: 1;
  padding: 0;
}

.md-media-card.list-mode .md-media-info h3 {
  white-space: normal;
  overflow: visible;
}

/* Modal */
.md-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  overflow-y: auto;
  animation: fadeIn 0.3s ease;
}

.md-modal-content {
  max-width: 900px;
  margin: 20px auto;
  background-color: var(--md-sys-color-surface);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--md-elevation-4);
  border: 1px solid var(--md-sys-color-surface-variant);
}

.md-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid var(--md-sys-color-surface-variant);
}

.md-modal-header h2 {
  font-size: 22px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin: 0;
}

.md-modal-close {
  --md-icon-button-icon-color: var(--md-sys-color-on-surface);
}

.md-modal-body {
  padding: 20px;
}

.md-media-viewer {
  background-color: #000;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
}

.md-video,
.md-image {
  width: 100%;
  height: auto;
  max-height: 70vh;
  display: block;
}

.md-modal-info {
  padding: 12px 20px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(236, 72, 153, 0.05) 100%);
  border-radius: 8px;
  border-left: 3px solid var(--md-sys-color-primary);
  margin-bottom: 20px;
}

.md-modal-info p {
  color: var(--md-sys-color-on-surface-variant);
  font-size: 14px;
  margin: 4px 0;
}

.md-modal-actions {
  display: flex;
  gap: 12px;
  padding: 20px;
  border-top: 1px solid var(--md-sys-color-surface-variant);
  flex-wrap: wrap;
}

md-filled-button,
md-outlined-button {
  flex: 1;
  min-width: 120px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .md-header-content {
    flex-direction: column;
    align-items: stretch;
  }

  .md-header-title {
    justify-content: center;
  }

  .md-header-search {
    max-width: none;
  }

  .md-header-controls {
    justify-content: space-between;
  }

  .md-grid-large {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
  }

  .md-grid-small {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }

  .md-main {
    padding: 12px;
  }

  .md-modal-content {
    margin: 10px;
    border-radius: 20px;
  }

  .md-modal-actions {
    flex-direction: column;
  }

  md-filled-button,
  md-outlined-button {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .md-header {
    padding: 8px 12px;
  }

  .md-header-content {
    gap: 8px;
  }

  .md-header-title h1 {
    font-size: 16px;
  }

  .md-header-title .material-symbols-rounded {
    font-size: 24px;
  }

  .sort-select {
    min-width: auto;
    flex: 1;
    min-width: 120px;
  }

  .md-button-group {
    padding: 2px;
  }

  .md-grid-large {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
  }

  .md-grid-small {
    grid-template-columns: repeat(auto-fill, minmax(85px, 1fr));
  }

  .md-main {
    padding: 8px;
  }

  .md-breadcrumb {
    padding: 8px 12px;
    gap: 2px;
  }

  .md-modal-content {
    margin: 0;
    border-radius: 12px;
  }

  .md-modal-header,
  .md-modal-body,
  .md-modal-actions {
    padding: 12px;
  }

  .md-media-viewer {
    border-radius: 8px;
  }
}