/*共通ポップアップスタイル*/
.common-popup {
  display: none; /* Initially hidden */
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%); /* Center it by default */
  padding: 20px;
  z-index: 1002;
  width: 50%;
  border-radius: 5px;
  /* Default theme (dark) */
  background-color: #2c2c2c;
  color: #f0f0f0;
  border: 1px solid #444;
}

.common-popup h1 {
    color: #f0f0f0; /* Default dark mode */
}

.popup-close-button {
  /* Default theme (dark) */
  background-color: #555;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
}
.popup-close-button:hover {
  background-color: #777; /* Default dark mode hover */
}

/* Light mode for common-popup */
body.light-mode .common-popup {
  background-color: white;
  color: #333;
  border: 1px solid #ccc;
}
body.light-mode .common-popup h1 {
    color: #333;
}
body.light-mode .popup-close-button {
  background-color: #424242; /* Original darkish button on light bg for light mode */
  color: white;
}
body.light-mode .popup-close-button:hover {
  background-color: #666; /* Original hover for light mode */
}


.popup-animation {
  opacity: 0;
  transform: translate(-50%, -60%) scale(0.98);
  transition: opacity 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
              transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  pointer-events: none;
}

.popup-animation.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.tab-bar {
  text-align: center;
  position: relative;
}

.tab-underline {
  position: absolute;
  bottom: 0;
  height: 3px;
  background-color: #3a8df9;
  transition: left 0.3s ease, width 0.3s ease;
  border-radius: 2px;
}
  
.tab-content {
  font-size: 1rem;
  /* Default dark mode */
  color: #ddd;
  background: #3a3a3a;
  box-shadow: 0 0 10px rgba(0,0,0,0.5);
  /* --- */
  padding: 15px;
  border-radius: 10px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  display: none;
}

.tab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}


.tab-button {
  background: none;
  border: none;
  /* Default dark mode */
  color: #ccc;
  /* --- */
  padding: 15px 20px;
  font-size: 16px;
  cursor: pointer;
  position: relative;
  transition: color 0.2s ease;
}

.tab-button.active {
  /* Default dark mode */
  color: #fff;
  /* --- */
}

.tab-button.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 25%;
  width: 50%;
  height: 1px;
  background-color: #3a8df9; /* 青いアンダーライン */
  border-radius: 2px;
  transition: all 0.3s ease;
}

.tab-button:hover {
  /* Default dark mode */
  color: #fff;
  /* --- */
}

/* Light mode for tabs */
body.light-mode .tab-button {
  color: rgb(0, 0, 0); /* Original color */
}

body.light-mode .tab-button.active {
  color: #000000; /* Original color */
}

body.light-mode .tab-button.active::after {
  background-color: #3a8df9; /* Original color */
}

body.light-mode .tab-content {
  font-size: 1rem;
  color: #222; /* Original color */
  background: #f8f8f8; /* Original color */
  box-shadow: 0 0 10px rgba(0,0,0,0.1); /* Original shadow */
}


/* .common-popup, .popup-animation, .popup-close-button は上記の「使用方法ポップアップ」のCSSを参照 */

/* 固定ボタンのスタイル */
.fixed-btn {
    position: fixed;
    bottom: 20px;
    /* ↓ 最初のボタンのデフォルト位置（左側） */
    right: 60px; 
    padding: 10px 15px;
    background-color: #7d7d7d;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: bold;
    transition: background 0.3s;
    z-index: 10; /* 他の要素より手前に表示されるように念のため指定 */
}

.fixed-btn:hover {
    background-color: #717171;
}

/* 2つ目以降の .fixed-btn の位置を調整（右側） */
.fixed-btn + .fixed-btn {
    right: 5px; 
}

.bp_icon_i{
  width: 15px;
  height: auto;
}

/* Theme Toggle Switch Styles */
.theme-switch-container {
  display: flex;
  align-items: center;
  justify-content: space-between; /* Aligns text to left, switch to right */
  padding: 5px 0; /* Optional padding */
}

.theme-switch-label {
  margin-right: 10px; /* Space between text and switch */
  font-size: 1em; /* Adjust as needed */
}

.theme-switch {
  position: relative;
  display: inline-block;
  width: 50px; /* Smaller width */
  height: 28px; /* Smaller height */
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #555; /* Default: Dark mode track (toggle OFF) */
  transition: .4s;
  border-radius: 28px; /* Rounded track */
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px; /* Smaller handle */
  width: 20px;  /* Smaller handle */
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%; /* Rounded handle */
}

input:checked + .slider {
  background-color: #ccc; /* Light mode track (toggle ON) */
}

input:focus + .slider {
  box-shadow: 0 0 1px #ccc; /* Optional focus */
}

input:checked + .slider:before {
  transform: translateX(22px); /* Adjust translation distance */
}