/* ========================================
   管理画面 CSS
   ======================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Segoe UI', 'Hiragino Sans', sans-serif;
  background: #1a1a2e;
  color: #e0e0e0;
  min-height: 100vh;
}
.admin-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px;
}
h1 {
  text-align: center;
  margin-bottom: 24px;
  font-size: 1.5rem;
  color: #f1c40f;
}
.hidden { display: none !important; }

/* ログイン画面 */
.login-panel {
  max-width: 360px;
  margin: 80px auto;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}
.login-panel h2 { margin-bottom: 16px; color: #f1c40f; }
.login-panel input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  background: rgba(0,0,0,0.3);
  color: #fff;
  font-size: 1rem;
  margin-bottom: 12px;
}
.login-panel button {
  width: 100%;
  padding: 10px;
  background: #f1c40f;
  color: #000;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
}
.login-panel button:hover { background: #f39c12; }
.login-error { color: #e74c3c; margin-top: 8px; font-size: 0.85rem; }

/* タブ */
.tab-bar {
  display: flex;
  border-bottom: 2px solid rgba(255,255,255,0.1);
  margin-bottom: 20px;
}
.tab-btn {
  padding: 10px 20px;
  background: transparent;
  border: none;
  color: #888;
  font-size: 0.9rem;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
}
.tab-btn.active {
  color: #f1c40f;
  border-bottom-color: #f1c40f;
}
.tab-btn:hover { color: #ccc; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* セクション共通 */
.section-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
}
.section-card h3 {
  margin-bottom: 12px;
  color: #f1c40f;
  font-size: 1rem;
}

/* トグルスイッチ */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
}
.toggle-label { font-size: 0.95rem; }
.toggle-switch {
  position: relative;
  width: 50px;
  height: 26px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: #555;
  border-radius: 26px;
  cursor: pointer;
  transition: 0.3s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 20px; height: 20px;
  left: 3px; bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: 0.3s;
}
.toggle-switch input:checked + .toggle-slider { background: #f1c40f; }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(24px); }

/* カード枚数テーブル */
.card-count-table {
  width: 100%;
  border-collapse: collapse;
}
.card-count-table th {
  text-align: left;
  padding: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  color: #999;
}
.card-count-table td {
  padding: 6px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.85rem;
}
.card-count-table input[type="number"] {
  width: 60px;
  padding: 4px 6px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  color: #fff;
  font-size: 0.85rem;
  text-align: center;
}

/* 保存ボタン */
.save-btn {
  display: inline-block;
  padding: 8px 24px;
  background: #f1c40f;
  color: #000;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: bold;
  cursor: pointer;
  margin-top: 12px;
}
.save-btn:hover { background: #f39c12; }
.save-msg {
  display: inline-block;
  margin-left: 12px;
  color: #2ecc71;
  font-size: 0.85rem;
}

/* 画像管理 */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
.image-card {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
}
.image-card .image-label {
  font-size: 0.75rem;
  color: #aaa;
  margin-bottom: 6px;
  word-break: break-all;
}
.image-card img {
  max-width: 100%;
  max-height: 120px;
  border-radius: 4px;
  margin-bottom: 6px;
  background: rgba(255,255,255,0.05);
}
.image-card input[type="file"] {
  font-size: 0.7rem;
  width: 100%;
  color: #aaa;
}
.image-card .upload-btn {
  margin-top: 4px;
  padding: 3px 10px;
  background: #3498db;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 0.7rem;
  cursor: pointer;
}
.image-card .upload-btn:hover { background: #2980b9; }
.image-card .upload-status {
  font-size: 0.7rem;
  margin-top: 4px;
  min-height: 16px;
}

/* カテゴリ区切り */
.image-category { margin-bottom: 20px; }
.image-category h4 {
  margin-bottom: 8px;
  color: #f1c40f;
  font-size: 0.9rem;
}

/* 戻るリンク */
.back-link {
  display: inline-block;
  margin-top: 24px;
  color: #888;
  text-decoration: none;
  font-size: 0.85rem;
}
.back-link:hover { color: #ccc; }