/* member_news_fullscreen_V0.01.css — fullscreen post layout & desktop video perf */

/* ========== 1. 基礎樣式 ========== */
#newsFullscreenModal .full-slider-track {
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
  transform: translate3d(0, 0, 0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.full-post-likers-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  width: 100%;
  margin-bottom: 12px;
  min-height: 0;
}

.full-slide-counter-txt {
  font-size: 13px;
  color: #fff;
  margin-right: 4px;
  font-weight: 700;
}

.full-slide-nav-group {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  padding: 5px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========== 2. 布局樣式 ========== */
.full-post-controls-row {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
  flex-wrap: nowrap;
}

.full-nav-buttons {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
}

.full-nav-inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  width: 100%;
}

.full-like-cluster {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-left: auto;
}

/* ========== 3. 交互樣式 ========== */
.immersive-slide-btn {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

.immersive-slide-btn:active {
  transform: scale(0.94);
}

.immersive-slide-counter {
  font-size: 12px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.95);
  min-width: 36px;
  text-align: center;
}

.immersive-restore-btn {
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 24px;
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  letter-spacing: 0.4px;
  flex-shrink: 0;
}

/* ========== 4. 響應式 — 手機沉浸浮層 ========== */
@media screen and (max-width: 900px) {
  #immersiveMobileBar {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 16px;
    left: auto;
    z-index: 999999;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    max-width: calc(100vw - 24px);
    pointer-events: none;
  }

  #immersiveMobileBar > * {
    pointer-events: auto;
  }

  .immersive-slide-cluster {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 28px;
    padding: 6px 10px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }

  #newsFullscreenModal.immersive-active #immersiveMobileBar {
    display: flex;
  }

  .full-nav-inner {
    flex-wrap: wrap;
  }

  .full-post-controls-row {
    align-items: flex-start;
  }

  .full-like-cluster {
    align-self: center;
  }
}

/* ========== 桌面：降低全螢幕影片合成卡頓 ========== */
@media screen and (min-width: 901px) {
  #newsFullscreenModal .news-fullscreen-content {
    transform: translateZ(0);
    -webkit-font-smoothing: antialiased;
  }

  #newsFullscreenModal #fullMediaSlider {
    transform: translateZ(0);
    contain: layout style;
  }

  #newsFullscreenModal #fullMediaSlider video {
    transform: translate3d(0, 0, 0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
  }

  /* 關閉重型 backdrop-filter，避免與影片解碼合成搶 GPU（Safari / Chrome 桌面） */
  #newsFullscreenModal.fs-desktop-video-perf {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: rgba(0, 0, 0, 0.92) !important;
  }

  #newsFullscreenModal.fs-desktop-video-perf .news-fullscreen-content {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: rgba(18, 18, 28, 0.98) !important;
  }

  /*
   * Profile 路徑：底層仍開著 member 面板（多格 video + blur 封面 + backdrop-filter），
   * 與全螢幕影片搶合成。全螢幕期間不繪製該層，關閉後還原。
   */
  body.fs-news-fullscreen-profile-bg #memberActionsModal,
  body.fs-news-fullscreen-profile-bg #memberListModal {
    visibility: hidden !important;
    pointer-events: none !important;
  }
}