/* ============================================================
   主題切換介面（按鈕 + 選單）
   ------------------------------------------------------------
   固定在右下角，疊在「回到頂端」（right 30 / bottom 90）下方：
   放左下會壓到首頁頁尾的「➥奉獻回報」「新人聯絡單」兩顆按鈕。
   ------------------------------------------------------------
   三個主題：紅白（預設）／聖誕綠／聖誕棕
   這個檔案只負責「切換介面」的外觀，各主題的顏色在
   theme-christmas.css 與 theme-brown.css。
   ============================================================ */

#sjtlc-theme-toggle {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9998;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 42px;
  padding: 0 15px 0 12px;
  border: 0;
  border-radius: 999px;
  background: #CF2E2E;
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .18);
  transition: transform .18s cubic-bezier(.2, .8, .2, 1),
              background-color .18s ease;
}
#sjtlc-theme-toggle:hover { transform: translateY(-1px); }
#sjtlc-theme-toggle:active { transform: translateY(0); }
#sjtlc-theme-toggle svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  stroke: currentColor;
  stroke-width: 1.7;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 依當前主題換按鈕顏色 */
html[data-theme="christmas"] #sjtlc-theme-toggle {
  background: #0E4D2B !important;
  box-shadow: 0 2px 10px rgba(14, 77, 43, .35),
              0 0 0 2px rgba(201, 162, 39, .55) !important;
}
html[data-theme="brown"] #sjtlc-theme-toggle {
  background: #A4502C !important;
  box-shadow: 0 2px 10px rgba(74, 63, 54, .32),
              0 0 0 2px rgba(201, 163, 73, .6) !important;
}

/* ---- 選單 ---- */
#sjtlc-theme-picker {
  position: fixed;
  right: 20px;
  bottom: 72px;
  z-index: 9999;
  min-width: 178px;
  padding: 6px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, .18);
  font: inherit;
}
#sjtlc-theme-picker[hidden] { display: none; }

#sjtlc-theme-picker .sjtlc-picker-title {
  padding: 6px 10px 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  color: #8a8a8a;
}

#sjtlc-theme-picker button {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: #2b2b2b;
  font: inherit;
  font-size: 14px;
  text-align: left;
  cursor: pointer;
}
#sjtlc-theme-picker button:hover { background: #f2f2f2; }
#sjtlc-theme-picker button[aria-current="true"] { font-weight: 700; }

/* 每個選項前面一小塊主題色票 */
#sjtlc-theme-picker .swatch {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  border-radius: 4px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .12);
}
#sjtlc-theme-picker .swatch-red { background: #CF2E2E; }
#sjtlc-theme-picker .swatch-christmas {
  background: linear-gradient(135deg, #0E4D2B 60%, #C9A227 60%);
}
#sjtlc-theme-picker .swatch-brown {
  background: linear-gradient(135deg, #A4502C 60%, #C9A349 60%);
}

@media (max-width: 600px) {
  #sjtlc-theme-toggle {
    right: 12px;
    bottom: 12px;
    min-height: 40px;
    padding: 0 13px 0 11px;
    font-size: 13px;
  }
  #sjtlc-theme-picker {
    right: 12px;
    bottom: 64px;
    min-width: 168px;
  }
}

/* 手機（≤600px）：頁尾兩顆按鈕會和右下角的切換鈕重疊。
   給 body 底部留白，捲到底時按鈕會停在切換鈕上方。
   （實測 360/320px 時「新人聯絡單」會壓到切換鈕） */
@media (max-width: 600px) {
  body { padding-bottom: 72px !important; }
}

/* ============================================================
   飄雪圖層
   pointer-events: none → 完全不影響點擊與選取
   z-index 低於主題切換鈕（9998）與回到頂端
   ============================================================ */
#sjtlc-snow {
  position: fixed;
  inset: 0;
  z-index: 9990;
  pointer-events: none;
  display: block;
}
@media (prefers-reduced-motion: reduce) {
  #sjtlc-snow { display: none !important; }
}

/* ---- 選單裡的深色模式開關 ---- */
#sjtlc-theme-picker .sjtlc-picker-sep {
  height: 1px;
  margin: 6px 8px;
  background: #e8e8e8;
}
#sjtlc-theme-picker .swatch-dark {
  background: linear-gradient(135deg, #2a2a2a 50%, #f2f2f2 50%);
}
#sjtlc-theme-picker #sjtlc-dark-toggle[aria-pressed="true"] {
  font-weight: 700;
}