/* =====================================================
   Sc VeRA — album.css
   活動アルバム ページスタイル
===================================================== */

:root {
  --alb-bg:       #0a0a14;
  --alb-card-bg:  #111122;
  --alb-border:   rgba(168,85,247,0.18);
  --alb-purple:   #a855f7;
  --alb-purple2:  #7c3aed;
  --alb-green:    #34d399;
  --alb-yellow:   #fbbf24;
  --alb-red:      #f87171;
  --alb-gray:     rgba(255,255,255,0.45);
  --alb-white:    #f0e6ff;
  --alb-radius:   14px;
  --alb-font:     'Noto Sans JP', 'Jost', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--alb-bg);
  color: var(--alb-white);
  font-family: var(--alb-font);
  min-height: 100dvh;
}

/* ========== ヘッダー ========== */
#site-header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(10,10,20,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--alb-border);
  transition: box-shadow 0.2s;
}
#site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.5); }

/* ========== ページラッパー ========== */
.alb-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 80px;
}

/* ========== ページヘッダー ========== */
.alb-page-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 12px;
  flex-wrap: wrap;
}
.alb-page-title {
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--alb-white);
  display: flex;
  align-items: center;
  gap: 9px;
}
.alb-page-title i { color: var(--alb-purple); }

.alb-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  background: linear-gradient(135deg, var(--alb-purple2), var(--alb-purple));
  border: none;
  border-radius: 10px;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--alb-font);
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  letter-spacing: 0.05em;
}
.alb-add-btn:hover { opacity: 0.88; transform: translateY(-1px); }
.alb-add-btn:active { transform: scale(0.97); }

/* ========== アルバムグリッド ========== */
.alb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

/* ========== アルバムカード ========== */
.alb-card {
  background: var(--alb-card-bg);
  border: 1px solid var(--alb-border);
  border-radius: var(--alb-radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.18s, border-color 0.18s, box-shadow 0.18s;
  position: relative;
}
.alb-card:hover {
  transform: translateY(-3px);
  border-color: rgba(168,85,247,0.5);
  box-shadow: 0 8px 32px rgba(168,85,247,0.12);
}

/* カバー画像エリア */
.alb-card-cover {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1a0a2e, #0d1a3a);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.alb-card-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.alb-card-cover-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.2);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}
.alb-card-cover-placeholder i { font-size: 2rem; }

/* ロックバッジ */
.alb-lock-badge {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(0,0,0,0.72);
  border: 1px solid rgba(168,85,247,0.4);
  border-radius: 8px;
  padding: 4px 9px;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--alb-purple);
  display: flex;
  align-items: center;
  gap: 5px;
  backdrop-filter: blur(4px);
}

/* メディア枚数バッジ */
.alb-count-badge {
  position: absolute;
  bottom: 10px; left: 10px;
  background: rgba(0,0,0,0.65);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 0.65rem;
  color: rgba(255,255,255,0.7);
  backdrop-filter: blur(4px);
}

/* カード本文 */
.alb-card-body {
  padding: 13px 14px 14px;
}
.alb-card-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--alb-white);
  margin-bottom: 5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.alb-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.68rem;
  color: var(--alb-gray);
}
.alb-card-meta i { font-size: 0.6rem; }
.alb-card-creator {
  font-size: 0.65rem;
  color: rgba(168,85,247,0.7);
  margin-top: 4px;
}

/* 自分のアルバム — 管理ボタン */
.alb-card-actions {
  display: flex;
  gap: 6px;
  padding: 0 14px 12px;
}
.alb-card-act-btn {
  flex: 1;
  padding: 6px;
  border-radius: 7px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
  color: rgba(255,255,255,0.5);
  font-size: 0.68rem;
  font-family: var(--alb-font);
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.alb-card-act-btn:hover { background: rgba(168,85,247,0.12); color: var(--alb-purple); border-color: rgba(168,85,247,0.3); }
.alb-card-act-btn.danger:hover { background: rgba(248,113,113,0.1); color: var(--alb-red); border-color: rgba(248,113,113,0.3); }

/* ========== 空状態 ========== */
.alb-empty {
  grid-column: 1/-1;
  text-align: center;
  padding: 60px 20px;
  color: var(--alb-gray);
}
.alb-empty i { font-size: 2.8rem; margin-bottom: 14px; display: block; opacity: 0.4; }
.alb-empty p { font-size: 0.82rem; line-height: 1.7; }

/* ========== ローディング ========== */
.alb-loading {
  grid-column: 1/-1;
  text-align: center;
  padding: 48px;
  color: var(--alb-gray);
  font-size: 0.82rem;
}

/* ========== パスコードロック画面（オーバーレイ） ========== */
.alb-passcode-overlay {
  position: fixed; inset: 0;
  background: rgba(5,5,15,0.96);
  z-index: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.alb-passcode-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.alb-passcode-box {
  background: #13102a;
  border: 1px solid rgba(168,85,247,0.35);
  border-radius: 20px;
  padding: 36px 32px 28px;
  max-width: 340px;
  width: 100%;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0,0,0,0.8);
}
.alb-passcode-icon {
  font-size: 2.2rem;
  color: var(--alb-purple);
  margin-bottom: 14px;
}
.alb-passcode-album-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--alb-white);
  margin-bottom: 4px;
}
.alb-passcode-hint {
  font-size: 0.68rem;
  color: var(--alb-gray);
  margin-bottom: 22px;
}

/* 4桁ドット表示 */
.alb-passcode-dots {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 20px;
}
.alb-passcode-dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(168,85,247,0.4);
  background: transparent;
  transition: background 0.15s, border-color 0.15s;
}
.alb-passcode-dot.filled {
  background: var(--alb-purple);
  border-color: var(--alb-purple);
}

/* テンキー */
.alb-numpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
.alb-numpad-btn {
  padding: 14px 10px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.05);
  color: var(--alb-white);
  font-size: 1.05rem;
  font-weight: 700;
  font-family: var(--alb-font);
  cursor: pointer;
  transition: background 0.12s, transform 0.08s;
}
.alb-numpad-btn:hover { background: rgba(168,85,247,0.15); }
.alb-numpad-btn:active { transform: scale(0.93); }
.alb-numpad-btn.del {
  color: var(--alb-gray);
  font-size: 0.85rem;
}
.alb-numpad-btn.cancel {
  color: var(--alb-gray);
  font-size: 0.75rem;
}

.alb-passcode-error {
  font-size: 0.72rem;
  color: var(--alb-red);
  min-height: 1.2em;
  margin-bottom: 4px;
  font-weight: 700;
}

/* ========== アルバム詳細モーダル ========== */
.alb-detail-overlay {
  position: fixed; inset: 0;
  background: rgba(5,5,15,0.95);
  z-index: 700;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.alb-detail-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.alb-detail-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 20px 16px 80px;
}

/* 詳細ヘッダー */
.alb-detail-hd {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.alb-detail-back {
  background: none;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  color: var(--alb-gray);
  font-size: 0.8rem;
  padding: 7px 12px;
  cursor: pointer;
  font-family: var(--alb-font);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  transition: color 0.15s, border-color 0.15s;
}
.alb-detail-back:hover { color: var(--alb-white); border-color: rgba(255,255,255,0.3); }

.alb-detail-title-area { flex: 1; min-width: 0; }
.alb-detail-title {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--alb-white);
  word-break: break-word;
}
.alb-detail-meta {
  display: flex;
  gap: 12px;
  margin-top: 5px;
  font-size: 0.68rem;
  color: var(--alb-gray);
  flex-wrap: wrap;
}
.alb-detail-meta i { margin-right: 3px; }
.alb-detail-desc {
  font-size: 0.75rem;
  color: var(--alb-gray);
  margin-top: 8px;
  line-height: 1.6;
  white-space: pre-wrap;
}

/* 投稿ボタン */
.alb-media-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(168,85,247,0.12);
  border: 1px dashed rgba(168,85,247,0.4);
  border-radius: 9px;
  color: var(--alb-purple);
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--alb-font);
  cursor: pointer;
  transition: background 0.15s;
  flex-shrink: 0;
}
.alb-media-add-btn:hover { background: rgba(168,85,247,0.2); }

/* メディアグリッド */
.alb-media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
@media (max-width: 480px) {
  .alb-media-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
}

.alb-media-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  background: #111;
  aspect-ratio: 1/1;
  cursor: pointer;
  transition: transform 0.15s;
}
.alb-media-item:hover { transform: scale(1.02); }
.alb-media-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.alb-media-item video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}
.alb-media-video-overlay {
  position: absolute; inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
}
.alb-media-video-overlay i {
  font-size: 2rem;
  color: rgba(255,255,255,0.85);
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.6));
}
.alb-media-del-btn {
  position: absolute;
  top: 6px; right: 6px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(0,0,0,0.72);
  border: none;
  color: rgba(255,255,255,0.6);
  font-size: 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
}
.alb-media-item:hover .alb-media-del-btn { opacity: 1; }
.alb-media-del-btn:hover { color: var(--alb-red); }

.alb-media-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.75));
  padding: 14px 8px 6px;
  font-size: 0.62rem;
  color: rgba(255,255,255,0.8);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ========== ライトボックス ========== */
.alb-lightbox {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.alb-lightbox.open { opacity: 1; pointer-events: auto; }
.alb-lightbox-close {
  position: absolute;
  top: 16px; right: 20px;
  background: none; border: none;
  color: rgba(255,255,255,0.6);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 10;
  transition: color 0.15s;
}
.alb-lightbox-close:hover { color: #fff; }
.alb-lightbox-content {
  max-width: 95vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
}
.alb-lightbox-content.video {
  width: 90vw;
  max-height: 80vh;
}
.alb-lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.08);
  border: none;
  border-radius: 50%;
  width: 44px; height: 44px;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
.alb-lightbox-nav:hover { background: rgba(255,255,255,0.16); }
.alb-lightbox-nav.prev { left: 12px; }
.alb-lightbox-nav.next { right: 12px; }
.alb-lightbox-caption {
  position: absolute;
  bottom: 16px; left: 0; right: 0;
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  padding: 0 60px;
}

/* ========== モーダル共通 ========== */
.alb-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(5,5,15,0.88);
  z-index: 750;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
@media (min-width: 600px) {
  .alb-modal-overlay { align-items: center; padding: 24px; }
}
.alb-modal-overlay.open { opacity: 1; pointer-events: auto; }

.alb-modal {
  background: #13102a;
  border: 1px solid rgba(168,85,247,0.3);
  border-radius: 20px 20px 0 0;
  padding: 28px 24px 32px;
  width: 100%;
  max-width: 480px;
  max-height: 92dvh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 -8px 40px rgba(0,0,0,0.6);
  transform: translateY(30px);
  transition: transform 0.25s;
}
@media (min-width: 600px) {
  .alb-modal { border-radius: 20px; transform: translateY(0); box-shadow: 0 24px 80px rgba(0,0,0,0.7); }
}
.alb-modal-overlay.open .alb-modal { transform: translateY(0); }

.alb-modal-close {
  position: absolute;
  top: 14px; right: 16px;
  background: none; border: none;
  color: rgba(240,230,255,0.4);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  line-height: 1;
  transition: color 0.15s;
}
.alb-modal-close:hover { color: rgba(240,230,255,0.8); }

.alb-modal-title {
  font-size: 0.92rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--alb-purple);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* フォームフィールド */
.alb-field { margin-bottom: 16px; }
.alb-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(240,230,255,0.5);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.alb-label .req { color: var(--alb-purple); margin-left: 3px; }
.alb-input, .alb-textarea, .alb-select {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 9px;
  color: var(--alb-white);
  font-size: 0.82rem;
  font-family: var(--alb-font);
  padding: 10px 13px;
  transition: border-color 0.15s;
  outline: none;
}
.alb-input:focus, .alb-textarea:focus, .alb-select:focus {
  border-color: rgba(168,85,247,0.5);
}
.alb-textarea { resize: vertical; min-height: 70px; line-height: 1.55; }
.alb-select option { background: #13102a; }

/* パスコード入力フィールド */
.alb-passcode-field {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 8px 0;
}
.alb-passcode-input-digit {
  width: 52px; height: 56px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  color: var(--alb-white);
  font-size: 1.4rem;
  font-weight: 900;
  text-align: center;
  font-family: var(--alb-font);
  outline: none;
  transition: border-color 0.15s;
  -webkit-text-security: disc;
}
.alb-passcode-input-digit:focus { border-color: var(--alb-purple); }

/* 送信ボタン */
.alb-submit-btn {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--alb-purple2), var(--alb-purple));
  border: none;
  border-radius: 11px;
  color: #fff;
  font-size: 0.88rem;
  font-weight: 700;
  font-family: var(--alb-font);
  cursor: pointer;
  transition: opacity 0.15s;
  margin-top: 6px;
  letter-spacing: 0.06em;
}
.alb-submit-btn:hover { opacity: 0.88; }
.alb-submit-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.alb-cancel-btn {
  width: 100%;
  padding: 11px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 11px;
  color: var(--alb-gray);
  font-size: 0.82rem;
  font-family: var(--alb-font);
  cursor: pointer;
  margin-top: 8px;
  transition: border-color 0.15s, color 0.15s;
}
.alb-cancel-btn:hover { border-color: rgba(255,255,255,0.25); color: var(--alb-white); }

/* 区切り */
.alb-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.07);
  margin: 18px 0;
}

/* ヒントテキスト */
.alb-hint {
  font-size: 0.67rem;
  color: rgba(240,230,255,0.38);
  line-height: 1.6;
  margin-top: 5px;
}
.alb-hint a { color: var(--alb-purple); text-decoration: none; }
.alb-hint a:hover { text-decoration: underline; }

/* タブ切替（画像/動画） */
.alb-media-tabs {
  display: flex;
  gap: 0;
  border: 1px solid rgba(168,85,247,0.25);
  border-radius: 9px;
  overflow: hidden;
  margin-bottom: 18px;
}
.alb-media-tab {
  flex: 1;
  padding: 9px;
  background: transparent;
  border: none;
  color: var(--alb-gray);
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--alb-font);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.alb-media-tab.active {
  background: rgba(168,85,247,0.18);
  color: var(--alb-purple);
}

/* 画像プレビュー */
.alb-img-preview-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  background: rgba(255,255,255,0.03);
  border: 1px dashed rgba(255,255,255,0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.alb-img-preview-wrap img {
  width: 100%; height: 100%;
  object-fit: contain;
}
.alb-img-preview-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.25);
  font-size: 0.7rem;
  pointer-events: none;
}
.alb-img-preview-placeholder i { font-size: 1.8rem; }

/* ファイル選択ボタン */
.alb-file-btn {
  display: block;
  width: 100%;
  padding: 10px;
  background: rgba(255,255,255,0.04);
  border: 1px dashed rgba(168,85,247,0.3);
  border-radius: 9px;
  color: var(--alb-purple);
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--alb-font);
  text-align: center;
  cursor: pointer;
  transition: background 0.15s;
}
.alb-file-btn:hover { background: rgba(168,85,247,0.08); }

/* Google Drive ガイドボックス */
.alb-gdrive-guide {
  background: rgba(66,133,244,0.07);
  border: 1px solid rgba(66,133,244,0.25);
  border-radius: 10px;
  padding: 14px 15px;
  margin-top: 12px;
}
.alb-gdrive-guide-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: #74a9f8;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.alb-gdrive-guide ol {
  padding-left: 18px;
  font-size: 0.67rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.9;
}
.alb-gdrive-guide code {
  background: rgba(255,255,255,0.08);
  padding: 1px 5px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.7em;
  color: #74a9f8;
}

/* DM送信パネル */
.alb-dm-send-area {
  background: rgba(52,211,153,0.07);
  border: 1px solid rgba(52,211,153,0.2);
  border-radius: 10px;
  padding: 13px 15px;
  margin-top: 14px;
}
.alb-dm-send-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--alb-green);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.alb-dm-member-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  max-height: 130px;
  overflow-y: auto;
  margin-bottom: 10px;
}
.alb-dm-member-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  font-size: 0.68rem;
  cursor: pointer;
  transition: all 0.15s;
  color: rgba(255,255,255,0.6);
}
.alb-dm-member-chip.selected {
  background: rgba(52,211,153,0.12);
  border-color: rgba(52,211,153,0.4);
  color: var(--alb-green);
}
.alb-dm-member-av {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
  flex-shrink: 0;
}
.alb-dm-send-btn {
  width: 100%;
  padding: 9px;
  background: rgba(52,211,153,0.15);
  border: 1px solid rgba(52,211,153,0.35);
  border-radius: 9px;
  color: var(--alb-green);
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--alb-font);
  cursor: pointer;
  transition: background 0.15s;
}
.alb-dm-send-btn:hover { background: rgba(52,211,153,0.22); }
.alb-dm-send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* エラー・成功メッセージ */
.alb-msg {
  font-size: 0.72rem;
  padding: 8px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
}
.alb-msg.error { background: rgba(248,113,113,0.1); color: var(--alb-red); border: 1px solid rgba(248,113,113,0.25); }
.alb-msg.success { background: rgba(52,211,153,0.1); color: var(--alb-green); border: 1px solid rgba(52,211,153,0.25); }

/* ========== トースト ========== */
#alb-toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(30,20,50,0.96);
  border: 1px solid rgba(168,85,247,0.3);
  border-radius: 10px;
  padding: 10px 20px;
  font-size: 0.78rem;
  color: var(--alb-white);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  white-space: nowrap;
}
#alb-toast.on {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ========== バックトゥトップ ========== */
.back-to-top {
  position: fixed;
  bottom: 24px; right: 20px;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(168,85,247,0.2);
  border: 1px solid rgba(168,85,247,0.35);
  color: var(--alb-purple);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 100;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }

/* ========== セクションタイトル ========== */
.alb-section-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(168,85,247,0.6);
  text-transform: uppercase;
  margin-bottom: 14px;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.alb-section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(168,85,247,0.15);
}

/* ========== レスポンシブ ========== */
@media (max-width: 600px) {
  .alb-page { padding: 16px 12px 80px; }
  .alb-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .alb-passcode-box { padding: 28px 20px 22px; }
  .alb-modal { padding: 22px 18px 28px; }
}