/*
 * 每日節目浮動學習入口
 * 動畫由 js/schedule-learning-dock.js 與本地 GSAP vendor 控制。
 */

.learning-dock-anchor {
  position: fixed;
  top: 52%;
  right: clamp(14px, 2vw, 30px);
  z-index: 900;
  transform: translateY(-50%);
  pointer-events: none;
  will-change: transform, opacity;
}

/* 桌機捲動模式：錨點置頂，垂直位移改由 GSAP 以 translateY 驅動 */
.learning-dock-anchor.is-travel {
  top: 0;
  transform: none;
}

.learning-dock {
  --dock-accent: var(--color-lt, #ffcb05);
  --dock-ink: #7a6200;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  will-change: transform, opacity;
}

.learning-dock.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.learning-dock--lt {
  --dock-accent: var(--color-lt, #ffcb05);
  --dock-ink: #7a6200;
}

.learning-dock--sc {
  --dock-accent: var(--color-sc, #00b1cd);
  --dock-ink: #fff;
}

.learning-dock--ad {
  --dock-accent: var(--color-ad, #ed1c24);
  --dock-ink: #fff;
}

/* icon 位於視窗上半部時，選單改為往下展開，避免被視窗上緣切掉 */
.learning-dock.menu-below {
  flex-direction: column-reverse;
}

.learning-dock__trigger {
  position: relative;
  width: 62px;
  height: 62px;
  border: 0;
  border-radius: 50%;
  background: var(--dock-accent);
  color: var(--dock-ink);
  box-shadow: 0 12px 32px rgba(15, 23, 42, .24), 0 0 0 5px rgba(255, 255, 255, .82);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: box-shadow .2s ease;
  -webkit-tap-highlight-color: transparent;
}

.learning-dock__trigger:hover {
  box-shadow: 0 16px 38px rgba(15, 23, 42, .3), 0 0 0 6px rgba(255, 255, 255, .92);
}

.learning-dock__trigger:focus-visible,
.learning-dock__link:focus-visible {
  outline: 3px solid #0f172a;
  outline-offset: 4px;
}

.learning-dock__trigger-icon {
  font-size: 23px;
  line-height: 1;
}

.learning-dock__brand {
  position: absolute;
  right: -4px;
  bottom: -3px;
  min-width: 25px;
  height: 20px;
  padding: 0 6px;
  border: 2px solid #fff;
  border-radius: 999px;
  background: #0f172a;
  color: #fff;
  font: 800 10px/16px Inter, sans-serif;
  letter-spacing: .04em;
  text-align: center;
  box-shadow: 0 3px 9px rgba(15, 23, 42, .24);
}

.learning-dock__menu {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 9px;
  margin: 0;
  will-change: transform, opacity;
}

.learning-dock__menu[hidden] {
  display: none;
}

.learning-dock__link {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  min-height: 44px;
  padding: 6px 7px 6px 16px;
  border: 1px solid rgba(148, 163, 184, .24);
  border-radius: 999px;
  background: rgba(255, 255, 255, .96);
  color: #1e293b;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .16);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  white-space: nowrap;
  will-change: transform, opacity;
}

.learning-dock__link:hover {
  color: #0f172a;
  box-shadow: 0 12px 30px rgba(15, 23, 42, .23);
}

.learning-dock__label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .01em;
}

.learning-dock__platform-icon {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 15px;
}

.learning-dock__link--podcast .learning-dock__platform-icon {
  background: linear-gradient(135deg, #8b5cf6, #5b21b6);
}

.learning-dock__link--digital .learning-dock__platform-icon {
  background: linear-gradient(135deg, #0ea5e9, #0369a1);
}

.learning-dock__link--youtube .learning-dock__platform-icon {
  background: #ff0000;
}

@media (max-width: 767px) {
  .learning-dock-anchor,
  .learning-dock-anchor.is-travel {
    top: auto;
    right: 16px;
    bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    transform: none;
  }

  .learning-dock {
    gap: 10px;
  }

  .learning-dock__trigger {
    width: 56px;
    height: 56px;
  }

  .learning-dock__trigger-icon {
    font-size: 21px;
  }

  .learning-dock__link {
    min-height: 42px;
    max-width: calc(100vw - 32px);
  }

  .learning-dock__label {
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

@media (prefers-reduced-motion: reduce) {
  .learning-dock,
  .learning-dock__menu,
  .learning-dock__link,
  .learning-dock__trigger {
    transition: none !important;
  }
}