/* ===== リセット & ベース ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0A0A0F;
  --bg-glass: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.1);
  --text-primary: #F1F1F1;
  --text-secondary: #A0A0A8;
  --gradient-start: #8B5CF6;
  --gradient-mid: #3B82F6;
  --gradient-end: #06B6D4;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

body {
  font-family: -apple-system, 'Hiragino Sans', 'Helvetica Neue', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 0 16px 100px 16px;
  -webkit-font-smoothing: antialiased;
}

/* ===== Glassmorphism ===== */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ===== ヘッダー ===== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  margin: 12px 0 8px 0;
  position: sticky;
  top: 8px;
  z-index: 100;
}

.header-left, .header-right {
  display: flex;
  gap: 16px;
  font-size: 20px;
}

.header-center {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}

.icon-btn {
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s;
  user-select: none;
}
.icon-btn:hover { opacity: 1; }
.icon-btn:active { transform: scale(0.92); }

/* ===== 検索バー ===== */
.search-container {
  margin: 8px 0 16px 0;
}
.search-input {
  width: 100%;
  padding: 14px 18px;
  font-size: 15px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  color: var(--text-primary);
  outline: none;
  transition: border 0.2s;
}
.search-input::placeholder { color: var(--text-secondary); }
.search-input:focus { border-color: var(--gradient-mid); }

/* ===== セクションラベル ===== */
.section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 12px 4px 8px 4px;
}

/* ===== メモカード ===== */
.memo-card {
  padding: 16px 18px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: 12px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  position: relative;
}

.memo-card:active { transform: scale(0.98); }

/* ピン留めカード：左縁グラデーション */
.memo-card.pinned {
  border-left: 4px solid;
  border-image: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end)) 1;
}

.memo-card .card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.memo-card .card-title.empty { color: var(--text-secondary); font-weight: 400; }

.memo-card .card-preview {
  font-size: 14px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.memo-card .card-preview.empty { color: var(--text-secondary); opacity: 0.5; }

.memo-card .card-meta {
  font-size: 12px;
  color: var(--text-secondary);
  opacity: 0.6;
  margin-top: 6px;
  text-align: right;
}

/* ===== ロードモアボタン ===== */
.load-more-btn {
  width: 100%;
  padding: 14px;
  text-align: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 8px;
}
.load-more-btn:hover { background: rgba(255,255,255,0.12); }
.load-more-btn:active { transform: scale(0.98); }

/* ===== FAB ===== */
#fab {
  position: fixed;
  bottom: 28px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  font-size: 26px;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
#fab:active { transform: scale(0.88); }
#fab:hover { background: rgba(255,255,255,0.12); }

/* ===== モーダル共通 ===== */
#modalOverlay, #detailOverlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal {
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  background: rgba(20, 20, 30, 0.92);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-glass);
  font-size: 14px;
  font-weight: 500;
  flex-shrink: 0;
}

.modal-header span {
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s;
  user-select: none;
}
.modal-header span:hover { opacity: 1; }
.modal-header span:active { opacity: 0.5; }

.modal-save { color: var(--gradient-end); font-weight: 600; }
.modal-edit { color: var(--gradient-mid); }
.modal-delete { color: #EF4444; }

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

/* ===== 新規作成モーダル ===== */
.modal-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.modal-title-input {
  flex: 1;
  padding: 10px 14px;
  font-size: 16px;
  font-weight: 600;
  background: transparent;
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-primary);
  outline: none;
}
.modal-title-input::placeholder { color: var(--text-secondary); font-weight: 400; }
.modal-title-input:focus { border-color: var(--gradient-mid); }

.pin-toggle {
  font-size: 22px;
  cursor: pointer;
  opacity: 0.4;
  transition: all 0.2s;
  user-select: none;
  padding: 4px 8px;
}
.pin-toggle.active { opacity: 1; }
.pin-toggle:active { transform: scale(0.85); }

.modal-content-input {
  width: 100%;
  min-height: 140px;
  padding: 12px 14px;
  font-size: 15px;
  line-height: 1.6;
  background: transparent;
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-primary);
  outline: none;
  resize: vertical;
  font-family: inherit;
}
.modal-content-input::placeholder { color: var(--text-secondary); }
.modal-content-input:focus { border-color: var(--gradient-mid); }

/* ===== 添付ファイルセクション ===== */
.modal-attachments, .detail-attachments {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-glass);
}
.attachments-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.add-file-btn {
  padding: 4px 12px;
  font-size: 12px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
}
.add-file-btn:active { transform: scale(0.95); }

.attachment-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px;
  background: var(--bg-glass);
  border-radius: 8px;
  margin-bottom: 4px;
  font-size: 13px;
  color: var(--text-secondary);
}
.attachment-item .remove-attach {
  cursor: pointer;
  opacity: 0.5;
  font-size: 14px;
}
.attachment-item .remove-attach:hover { opacity: 1; }

/* ===== 詳細モーダル ===== */
.detail-body h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}
.detail-body .detail-meta {
  font-size: 13px;
  color: var(--text-secondary);
  opacity: 0.6;
  margin-bottom: 16px;
}
.detail-body .detail-content {
  font-size: 15px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  padding: 12px 0;
}
.copy-btn {
  width: 100%;
  padding: 12px;
  margin: 8px 0 4px 0;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.copy-btn:active { transform: scale(0.97); }
.copy-btn:hover { background: rgba(255,255,255,0.08); }

.detail-attachments .attachment-item {
  cursor: pointer;
  transition: background 0.2s;
}
.detail-attachments .attachment-item:hover {
  background: rgba(255,255,255,0.1);
}

/* ===== トースト ===== */
.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 12px 24px;
  font-size: 14px;
  color: var(--text-primary);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== スクロールバー ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-glass); border-radius: 4px; }