/*
 * ei-wiki color-switcher styles
 * スコープは #ei-theme-switcher 配下に限定し、サイト他要素へ波及させない。
 */

#ei-theme-switcher .ei-cs-root {
  position: relative;
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

/* ヘッダ（primary 背景・白文字）に馴染む白半透明トグル */
#ei-theme-switcher .ei-cs-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  padding: 0;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}

#ei-theme-switcher .ei-cs-toggle:hover {
  background: rgba(255, 255, 255, 0.32);
}

#ei-theme-switcher .ei-cs-toggle:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.85);
  outline-offset: 2px;
}

/* ポップオーバー（白カード・影・角丸・ヘッダより上） */
#ei-theme-switcher .ei-cs-popover {
  position: absolute;
  top: calc(100% + 0.4rem);
  right: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 0.5rem;
  padding: 0.6rem;
  background: #fff;
  border-radius: 0.6rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.22);
}

#ei-theme-switcher .ei-cs-popover[hidden] {
  display: none;
}

/* 円形スウォッチ */
#ei-theme-switcher .ei-cs-swatch {
  width: 28px;
  height: 28px;
  padding: 0;
  margin: 0;
  cursor: pointer;
  border: 2px solid rgba(0, 0, 0, 0.12);
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

#ei-theme-switcher .ei-cs-swatch:hover {
  transform: scale(1.12);
}

#ei-theme-switcher .ei-cs-swatch:focus-visible {
  outline: 2px solid #1a73e8;
  outline-offset: 2px;
}

/* 選択中はリング表示＋チェック風の二重枠 */
#ei-theme-switcher .ei-cs-swatch.ei-cs-selected {
  border-color: #fff;
  box-shadow: 0 0 0 2px #333, inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

#ei-theme-switcher .ei-cs-swatch.ei-cs-selected::after {
  content: "✓";
  display: block;
  margin-top: -2px;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 28px;
  text-align: center;
  color: #fff;
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.65);
}

/* ダークモード（slate）でもポップオーバーが見えるよう配慮 */
[data-md-color-scheme="slate"] #ei-theme-switcher .ei-cs-popover {
  background: #2b2f33;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.55);
}

[data-md-color-scheme="slate"] #ei-theme-switcher .ei-cs-swatch {
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

[data-md-color-scheme="slate"] #ei-theme-switcher .ei-cs-swatch.ei-cs-selected {
  border-color: #fff;
  box-shadow: 0 0 0 2px #fff, inset 0 0 0 1px rgba(0, 0, 0, 0.4);
}