/* TJK-Chess 15.1.222 — Hidden Tactic history, header dropdown geometry, and course editor preview polish. */

/* Desktop nav/dropdown cleanup: stable anchors, no overlap, uniform menu cards. */
@media (min-width: 981px) {
  .site-header .site-nav {
    position: relative;
    align-items: stretch;
    gap: 0 !important;
  }
  .site-header .site-nav > .site-nav-item {
    position: relative;
    display: flex;
    align-items: stretch;
    flex: 0 0 auto;
    min-width: 0;
  }
  .site-header .site-nav > .site-nav-item > button,
  .site-header .site-nav > .site-nav-item > .site-nav-top-link,
  .site-header .site-nav > .site-nav-link,
  .site-header .site-nav > button {
    width: 100%;
    justify-content: center;
  }
  .site-header .site-nav > .site-nav-item .site-nav-dropdown {
    position: absolute;
    top: calc(100% - 4px);
    left: 0;
    right: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    min-width: 300px;
    width: max-content;
    max-width: min(420px, calc(100vw - 26px));
    padding: 12px;
    border: 1px solid #d8e1ef;
    border-radius: 16px;
    background: rgba(255,255,255,.98);
    box-shadow: 0 20px 46px rgba(15, 23, 42, .17);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 120;
  }
  .site-header .site-nav > .site-nav-item:nth-last-child(-n+2) .site-nav-dropdown {
    left: auto;
    right: 0;
  }
  .site-header .site-nav > .site-nav-item:hover .site-nav-dropdown,
  .site-header .site-nav > .site-nav-item:focus-within .site-nav-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .site-header .site-nav > .site-nav-item .site-nav-dropdown > button,
  .site-header .site-nav > .site-nav-item .site-nav-dropdown > .site-nav-link {
    display: grid;
    width: 100%;
    min-width: 0;
    justify-items: start;
    align-content: start;
    gap: 3px;
    padding: 11px 13px;
    border: 1px solid #dde6f2;
    border-radius: 12px;
    background: #f8fbff;
    color: #0f172a;
    text-align: left;
    text-decoration: none;
    box-sizing: border-box;
  }
  .site-header .site-nav > .site-nav-item .site-nav-dropdown > button:hover,
  .site-header .site-nav > .site-nav-item .site-nav-dropdown > .site-nav-link:hover {
    border-color: #c5d5ee;
    background: #eef5ff;
  }
  .site-header .site-nav > .site-nav-item .site-nav-dropdown > button > strong,
  .site-header .site-nav > .site-nav-item .site-nav-dropdown > .site-nav-link > strong {
    display: block;
    width: 100%;
    font-size: .9rem;
    font-weight: 800;
    line-height: 1.2;
  }
  .site-header .site-nav > .site-nav-item .site-nav-dropdown > button > span,
  .site-header .site-nav > .site-nav-item .site-nav-dropdown > .site-nav-link > span {
    display: block;
    width: 100%;
    font-size: .74rem;
    line-height: 1.3;
    color: #64748b;
  }
}
html[data-theme="dark"] .site-header .site-nav > .site-nav-item .site-nav-dropdown {
  background: rgba(16, 24, 38, .98);
  border-color: #334155;
  box-shadow: 0 22px 48px rgba(0, 0, 0, .42);
}
html[data-theme="dark"] .site-header .site-nav > .site-nav-item .site-nav-dropdown > button,
html[data-theme="dark"] .site-header .site-nav > .site-nav-item .site-nav-dropdown > .site-nav-link {
  background: #101a2b;
  border-color: #334155;
  color: #eff4fb;
}
html[data-theme="dark"] .site-header .site-nav > .site-nav-item .site-nav-dropdown > button:hover,
html[data-theme="dark"] .site-header .site-nav > .site-nav-item .site-nav-dropdown > .site-nav-link:hover {
  background: #14233b;
  border-color: #41618f;
}
html[data-theme="dark"] .site-header .site-nav > .site-nav-item .site-nav-dropdown > button > span,
html[data-theme="dark"] .site-header .site-nav > .site-nav-item .site-nav-dropdown > .site-nav-link > span {
  color: #a7b4c9;
}

/* Analytical / Hidden Tactic move-history polish. */
.puzzle-analytical-history [data-puzzle-move-history] {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.puzzle-analytical-history .puzzle-history-move.is-tail {
  border-style: dashed;
  opacity: .96;
}

/* Video editor preview should mirror the watch-video composition more closely. */
.course-editor-live-preview {
  gap: 0 !important;
  padding: 0 !important;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid #20304a;
  background: #09111e;
  box-shadow: 0 16px 42px rgba(2, 8, 23, .28);
}
.course-editor-board-pane,
.course-editor-media-pane {
  min-height: 420px;
  border: 0 !important;
  border-radius: 0 !important;
  background: #09111e !important;
}
.course-editor-media-pane {
  border-left: 1px solid rgba(255,255,255,.08) !important;
}
.course-editor-preview-board-wrap {
  width: 100% !important;
  max-width: none !important;
  height: 100% !important;
  min-height: 420px;
  aspect-ratio: auto !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: #0b1422 !important;
}
.course-editor-preview-board,
.course-editor-preview-board-wrap > * {
  width: 100%;
  height: 100%;
}
.course-editor-media-pane video,
.course-editor-media-pane canvas,
.course-editor-media-pane .course-media-editor-preview {
  max-width: none !important;
  max-height: none !important;
}

/* Give the AI cutout a cleaner presence in lessons recorded without greenscreen. */
.tjk-person-cutout-canvas {
  filter: drop-shadow(0 10px 24px rgba(2, 8, 23, .30));
}
.course-editor-media-pane .is-person-cutout-source,
.course-video-preview-pane .is-person-cutout-source {
  opacity: 0 !important;
}

@media (max-width: 980px) {
  .course-editor-live-preview {
    display: grid !important;
    grid-template-columns: 1fr !important;
  }
  .course-editor-media-pane {
    border-left: 0 !important;
    border-top: 1px solid rgba(255,255,255,.08) !important;
  }
  .course-editor-board-pane,
  .course-editor-media-pane,
  .course-editor-preview-board-wrap {
    min-height: 280px;
  }
}