/* Unified Video workspace shell
 * Navigation and media remain stable while individual models swap only the
 * center workspace. This intentionally loads after responsive.css. */

#videoSection.active {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  height: calc(100vh - 156px);
  min-height: 0;
  overflow: hidden;
  background: var(--bg-primary);
}

.video-model-rail {
  position: relative;
  z-index: 82;
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  gap: 18px;
  padding: 24px 20px;
  overflow: visible;
  background:
    radial-gradient(circle at 15% 0%, rgba(255, 46, 187, 0.12), transparent 34%),
    linear-gradient(180deg, #15151b, #101116 72%);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.video-model-rail-heading {
  display: grid;
  gap: 5px;
}

.video-model-rail-kicker,
.video-media-tray-header span,
.video-model-summary > span {
  color: #ff5dc8;
  font-size: 0.67rem;
  font-weight: 850;
  letter-spacing: 0.13em;
}

.video-model-rail-heading h2 {
  margin: 0;
  color: var(--text-primary);
  font-size: 1.45rem;
  line-height: 1.1;
}

.video-model-rail-heading p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

#videoModelRailPickerMount {
  min-width: 0;
}

#videoSection .video-model-rail #videoModelTabs {
  display: none !important;
}

#videoSection .video-model-rail #videoModelPicker,
#videoSection.video-extended-mode .video-model-rail #videoModelPicker {
  display: block !important;
  width: 100%;
  margin: 0 !important;
}

#videoSection .video-model-rail .model-picker-current {
  min-height: 58px;
  padding: 11px 13px;
  background: rgba(255, 255, 255, 0.055);
  border-color: rgba(255, 255, 255, 0.13);
}

#videoSection .model-picker-menu-group {
  padding: 10px 12px 5px;
  color: #777b8c;
  font-size: 0.63rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

#videoSection .model-picker-menu-group:not(:first-child) {
  margin-top: 5px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

#videoSection .video-model-rail .model-picker-option .model-tab-label {
  justify-content: flex-start;
  flex-wrap: nowrap;
}

#videoSection .video-model-rail .model-picker-option .model-tab-title {
  overflow: hidden;
  overflow-wrap: normal;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#videoSection .video-model-rail .model-picker-option .model-tab-badges {
  flex-wrap: nowrap;
  flex-shrink: 0;
}

.video-model-summary {
  display: grid;
  gap: 7px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}

.video-model-summary h3 {
  margin: 0;
  color: var(--text-primary);
  font-size: 0.96rem;
  line-height: 1.25;
}

.video-model-summary p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.73rem;
  line-height: 1.5;
}

.video-library-toggle {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-top: auto;
  padding: 13px 14px;
  color: var(--text-primary);
  text-align: left;
  background: linear-gradient(120deg, rgba(255, 46, 187, 0.11), rgba(0, 178, 255, 0.09));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 11px;
  cursor: pointer;
}

.video-library-toggle > span:first-child {
  color: #ff5dc8;
  font-size: 1.25rem;
}

.video-library-toggle strong,
.video-library-toggle small {
  display: block;
}

.video-library-toggle strong {
  font-size: 0.82rem;
}

.video-library-toggle small {
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 0.64rem;
}

.video-library-toggle-caret {
  color: #8ddcff;
  font-size: 1.35rem;
  transition: transform 0.2s ease;
}

.video-sheet-backdrop {
  display: none;
}

#videoSection:not(.video-library-collapsed) .video-library-toggle-caret {
  transform: rotate(180deg);
}

.video-workspace-stage {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

#videoSection .video-workspace-panel {
  width: auto;
  max-width: none;
  min-width: 0;
  height: 100%;
  flex: 1 1 auto;
  container-type: inline-size;
  background: var(--bg-tertiary);
}

#videoSection .video-workspace-panel > .header {
  display: none;
}

#videoSection:not(.video-director-mode):not(.video-extended-mode) .video-workspace-panel > .content {
  width: min(100%, 1040px);
  margin: 0 auto;
  box-sizing: border-box;
}

/* Seedance 2.5 benefits from image-first controls. Keep both frames at a
 * truthful portrait ratio and put the writing/settings column beside them on
 * wide screens, instead of stretching shallow crop strips across the panel. */
#videoSection.video-seedance25-mode:not(.video-director-mode):not(.video-extended-mode) .video-workspace-panel > .content {
  width: min(100%, 1280px);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  grid-template-areas:
    "frames prompt"
    "frames settings";
  align-content: start;
  align-items: start;
  gap: 20px 28px;
  padding: clamp(20px, 2vw, 32px);
}

#videoSection.video-seedance25-mode #videoFrameRow {
  grid-area: frames;
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 16px;
  margin: 0;
}

#videoSection.video-seedance25-mode #videoPromptSection {
  grid-area: prompt;
  min-width: 0;
  margin: 0;
}

#videoSection.video-seedance25-mode #seedance25SettingsSection {
  grid-area: settings;
  min-width: 0;
  margin: 0;
  padding: 18px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.085);
  border-radius: 14px;
}

#videoSection.video-seedance25-mode .frame-dropzone {
  width: 100%;
  height: auto;
  min-height: 0 !important;
  aspect-ratio: 4 / 5;
  padding: 20px 12px;
  border-radius: 14px;
  background:
    radial-gradient(circle at 50% 38%, rgba(255, 46, 187, 0.08), transparent 36%),
    rgba(7, 8, 11, 0.8);
  box-sizing: border-box;
}

#videoSection.video-seedance25-mode .frame-preview-item img {
  object-fit: contain;
  background: #090a0d;
}

.frame-role-badge {
  display: none;
}

#videoSection.video-seedance25-mode .frame-role-badge,
#videoSection.video-seedance25-mode .frame-optional-badge {
  display: block;
  position: absolute;
  top: 10px;
  z-index: 3;
  padding: 4px 9px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(8, 9, 12, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 750;
  line-height: 1.2;
  pointer-events: none;
  backdrop-filter: blur(8px);
}

#videoSection.video-seedance25-mode .frame-role-badge {
  left: 10px;
  letter-spacing: 0.025em;
}

#videoSection.video-seedance25-mode .frame-optional-badge {
  right: 36px;
}

#videoSection.video-seedance25-mode #videoPromptInput {
  min-height: 250px;
  height: clamp(250px, 29vh, 340px);
  padding: 16px;
  border-radius: 12px;
  line-height: 1.55;
  box-sizing: border-box;
}

#videoSection.video-seedance25-mode #seedance25SettingsSection .settings-grid {
  align-items: stretch;
}

#videoSection.video-seedance25-mode .seedance25-audio-toggle {
  grid-column: 1 / -1;
  min-height: 46px;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  padding: 11px 13px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  box-sizing: border-box;
}

#videoSection.video-seedance25-mode .seedance25-audio-toggle:hover {
  border-color: rgba(255, 46, 187, 0.55);
}

@container (max-width: 960px) {
  #videoSection.video-seedance25-mode:not(.video-director-mode):not(.video-extended-mode) .video-workspace-panel > .content {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "frames"
      "prompt"
      "settings";
    gap: 18px;
  }

  #videoSection.video-seedance25-mode #videoFrameRow {
    width: min(100%, 660px);
    margin: 0 auto;
  }

  #videoSection.video-seedance25-mode #videoPromptInput {
    height: 210px;
    min-height: 210px;
  }
}

@media (max-width: 560px) {
  #videoSection.video-seedance25-mode:not(.video-director-mode):not(.video-extended-mode) .video-workspace-panel > .content {
    padding: 14px 12px 18px;
  }

  #videoSection.video-seedance25-mode #videoFrameRow {
    gap: 10px;
  }

  #videoSection.video-seedance25-mode .frame-role-badge,
  #videoSection.video-seedance25-mode .frame-optional-badge {
    top: 7px;
    padding: 3px 7px;
    font-size: 0.59rem;
  }

  #videoSection.video-seedance25-mode .frame-role-badge {
    left: 7px;
  }

  #videoSection.video-seedance25-mode .frame-optional-badge {
    right: 31px;
  }

  #videoSection.video-seedance25-mode #seedance25SettingsSection .settings-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  #videoSection.video-seedance25-mode .seedance25-audio-toggle {
    grid-column: 1;
  }
}

#videoSection .video-media-tray {
  width: 410px;
  min-width: 0;
  flex: 0 0 410px !important;
  padding: 0;
  overflow: hidden;
  background: #101116;
  border-left: 1px solid rgba(255, 255, 255, 0.09);
  transition: flex-basis 0.22s ease, width 0.22s ease, opacity 0.18s ease;
}

#videoSection.video-library-collapsed .video-media-tray {
  width: 0;
  flex-basis: 0 !important;
  opacity: 0;
  border-left: 0;
  pointer-events: none;
}

.video-media-tray-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 18px 13px;
}

.video-media-tray-header > div {
  display: grid;
  gap: 3px;
}

.video-media-tray-header strong {
  color: var(--text-primary);
  font-size: 1rem;
}

.video-media-tray-header button {
  width: 34px;
  height: 34px;
  padding: 0;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 9px;
  cursor: pointer;
  font-size: 1.25rem;
}

.video-media-tray-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin: 0 18px 14px;
  padding: 4px;
  background: rgba(0, 0, 0, 0.24);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
}

.video-media-tray-tabs button {
  padding: 9px 12px;
  color: var(--text-muted);
  background: transparent;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  font: inherit;
  font-size: 0.76rem;
  font-weight: 750;
}

.video-media-tray-tabs button.active {
  color: #fff;
  background: linear-gradient(100deg, rgba(255, 46, 187, 0.8), rgba(38, 143, 234, 0.82));
}

.video-media-panel {
  height: calc(100% - 116px);
  padding: 0 16px 18px;
  overflow-y: auto;
  box-sizing: border-box;
}

.video-media-panel[hidden] {
  display: none !important;
}

.video-media-panel .output-header-container {
  padding: 0 2px 12px;
}

.video-media-panel #videoOutputGrid,
.video-media-panel #videoSharedGalleryGrid {
  grid-template-columns: 1fr !important;
}

.video-media-panel #videoSharedGallery {
  margin-top: 0;
}

/* Special workspaces now occupy the same center host and never own navigation. */
#videoSection.video-director-mode .video-workspace-panel > .header,
#videoSection.video-director-mode #videoGenerateActionBar,
#videoSection.video-director-mode .video-workspace-panel > .content > :not(#ltxDirectorSettingsSection) {
  display: none !important;
}

#videoSection.video-director-mode .video-workspace-panel > .content {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  overflow: auto;
}

#videoSection.video-director-mode #ltxDirectorSettingsSection {
  display: block;
}

#videoSection.video-extended-mode .video-workspace-panel {
  width: auto;
  max-width: none;
  flex: 1 1 auto;
}

#videoSection.video-extended-mode .video-workspace-panel > .content {
  width: 100%;
  max-width: none;
  margin: 0;
}

#videoSection.video-extended-mode .video-media-tray,
#videoSection.video-director-mode .video-media-tray {
  display: block;
}

@media (max-width: 1450px) {
  #videoSection.active {
    grid-template-columns: 288px minmax(0, 1fr);
  }

  #videoSection .video-media-tray {
    position: absolute;
    z-index: 90;
    inset: 0 0 0 auto;
    width: min(410px, 42vw);
    max-width: 100%;
    box-shadow: -20px 0 45px rgba(0, 0, 0, 0.48);
  }

  #videoSection.video-library-collapsed .video-media-tray {
    width: min(410px, 42vw);
    transform: translateX(102%);
  }
}

@media (max-width: 900px) {
  #videoSection.active {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr);
    height: calc(100vh - 78px);
  }

  .video-model-rail {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .video-model-rail-heading,
  .video-model-summary {
    display: none;
  }

  #videoModelRailPickerMount {
    min-width: 0;
  }

  .video-library-toggle {
    width: 44px;
    height: 44px;
    margin: 0;
    padding: 0;
    place-items: center;
  }

  .video-library-toggle > span:nth-child(2),
  .video-library-toggle-caret {
    display: none;
  }

  #videoSection .video-media-tray {
    position: fixed;
    z-index: 30010;
    top: 70px;
    right: 0;
    bottom: 0;
    width: min(92vw, 430px);
    height: auto;
  }

  #videoSection.video-library-collapsed .video-media-tray {
    width: min(92vw, 430px);
  }
}

@media (max-width: 560px) {
  #videoSection.active {
    grid-template-rows: auto minmax(0, 1fr);
  }

  .video-model-rail {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    padding: 8px 10px;
  }

  #videoSection .video-model-rail .model-picker-current {
    min-height: 44px;
    padding: 7px 10px;
  }

  #videoSection .video-model-rail .model-picker-current-label,
  #videoSection .video-model-rail .model-tab-label,
  #videoSection .video-model-rail .model-tab-title {
    min-width: 0;
  }

  #videoSection .video-model-rail .model-picker-current-label {
    justify-content: flex-start;
    overflow: hidden;
  }

  #videoSection .video-model-rail .model-picker-current .model-tab-title {
    display: block;
    font-size: 0.78rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  #videoSection .video-model-rail .model-picker-current .model-tab-badges {
    display: none;
  }

  #videoSection #videoModelPicker.open .model-picker-menu {
    position: fixed;
    inset: auto 0 0 0;
    width: 100vw;
    max-width: none;
    max-height: min(76dvh, 620px);
    padding: 0 10px calc(12px + env(safe-area-inset-bottom));
    gap: 7px;
    border: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 18px 18px 0 0;
    background: #17171d;
    box-shadow: 0 -24px 60px rgba(0, 0, 0, 0.72);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .video-model-sheet-header {
    position: sticky;
    z-index: 2;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 58px;
    padding: 8px 2px 6px;
    background: #17171d;
  }

  .video-model-sheet-title {
    color: var(--text-primary);
    font-size: 0.96rem;
    font-weight: 800;
  }

  .video-model-sheet-close {
    width: 44px;
    height: 44px;
    padding: 0;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    font: inherit;
    font-size: 1.3rem;
  }

  .video-library-toggle {
    display: inline-flex;
    width: auto;
    min-width: 76px;
    height: 44px;
    gap: 7px;
    padding: 0 11px;
  }

  .video-library-toggle > span:nth-child(2) {
    display: block;
  }

  .video-library-toggle strong {
    font-size: 0.74rem;
  }

  .video-library-toggle small,
  .video-library-toggle-caret {
    display: none;
  }

  #videoSection .video-media-tray {
    position: fixed;
    z-index: 30012;
    inset: auto 0 0 0;
    display: flex;
    width: 100vw;
    max-width: none;
    height: min(76dvh, 620px);
    flex-direction: column;
    border: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 18px 18px 0 0;
    box-shadow: 0 -24px 60px rgba(0, 0, 0, 0.72);
    overflow-x: hidden !important;
    overflow-y: hidden !important;
    transform: translateY(0);
    transition: transform 0.22s ease, visibility 0.22s ease;
  }

  #videoSection.video-library-collapsed .video-media-tray {
    width: 100vw;
    transform: translateY(102%);
    visibility: hidden;
  }

  #videoSection:not(.video-library-collapsed) .video-sheet-backdrop {
    position: fixed;
    z-index: 30011;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    padding: 0;
    background: rgba(0, 0, 0, 0.58);
    border: 0;
  }

  .video-media-tray-header {
    flex: 0 0 auto;
    padding: 14px 14px 10px;
  }

  .video-media-tray-header button {
    width: 44px;
    height: 44px;
  }

  .video-media-tray-tabs {
    flex: 0 0 auto;
    margin: 0 14px 12px;
  }

  .video-media-tray-tabs button {
    min-height: 44px;
  }

  .video-media-panel {
    min-height: 0;
    height: auto;
    flex: 1 1 auto;
    padding: 0 14px calc(14px + env(safe-area-inset-bottom));
    overflow-y: auto;
    overscroll-behavior: contain;
  }
}