/* 15-memopad.css — 글감 메모 floating window
 *
 * 패턴 결정 사유:
 *   - 모달이 아닌 floating window. 백드롭 없음 → 작업 중에도 옆에 두고 활용.
 *   - 세로:가로 ≈ 2:1 (340 × 680). 메모는 상하 스크롤이 자연스러움.
 *   - 헤더 드래그(JS) + [−] 접기 → 작업에 방해 없이 토글.
 *
 * 본문 에디터와의 격리:
 *   - .memopad[data-memo-fsize="..."] 셀렉터로 메모장 내부만 글자 크기 적용.
 *   - 폰트는 JS가 inline font-family로 메모장 내부 요소에만 적용(글로벌 data-font와 별개).
 */

.memopad {
  position: fixed;
  /* 초기 위치 — 우측 하단. localStorage 'tutor.memopad.window'로 복원 가능. */
  right: 32px;
  bottom: 32px;
  width: 340px;
  height: 680px;  /* 세로 = 가로 × 2 */
  max-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
  background: var(--surface, #fff);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.18),
              0 4px 8px rgba(15, 23, 42, 0.08);
  z-index: 1200;
  font-family: var(--font-sans);
  contain: layout paint style;
  isolation: isolate;
  backface-visibility: hidden;
  transform: translateZ(0);
}
.memopad[hidden] { display: none; }
.memopad.is-collapsed { height: 44px; }
.memopad.is-collapsed .memopad__body { display: none; }
.memopad.is-collapsed .memopad__head { border-bottom: 0; border-radius: 12px; }
.memopad.is-window-dragging {
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.16),
              0 2px 6px rgba(15, 23, 42, 0.08);
}
.memopad.is-window-dragging,
.memopad.is-window-dragging * {
  transition: none !important;
}
.memopad.is-window-dragging .memopad__head {
  cursor: grabbing;
}
/* 본문 selection이 8자+일 때 — tutor-popup 4개 코칭 카드와 영역 충돌 회피. */
.memopad.is-faded {
  opacity: 0.15;
  pointer-events: none;
  transition: opacity var(--dur-2, 150ms) ease;
}
.memopad.is-faded:hover {
  opacity: 1;
  pointer-events: auto;
}

/* 헤더 — 드래그 핸들 */
.memopad__head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.10), rgba(168, 85, 247, 0.18));
  border-bottom: 1px solid var(--line);
  border-radius: 12px 12px 0 0;
  cursor: grab;
  user-select: none;
  touch-action: none;
}
.memopad__head:active { cursor: grabbing; }
.memopad__icon { font-size: 14px; line-height: 1; }
.memopad__title {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}
.memopad__count {
  margin-left: 2px;
  padding: 1px 6px;
  border-radius: 999px;
  background: rgba(168, 85, 247, 0.20);
  color: #6b21a8;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.4;
}
.memopad__head-actions {
  margin-left: auto;
  display: flex;
  gap: 4px;
}
.memopad__btn {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  border-radius: 6px;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}
.memopad__btn:hover {
  background: rgba(15, 23, 42, 0.08);
  color: var(--ink);
}

/* body */
.memopad__body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 12px;
  gap: 10px;
}

/* 편집 도구 — fpick/fsize-pick 시각 재활용 + 색상 선택 */
.memopad__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--line);
}
/* 메모장 안 fpick은 너무 넓어지지 않도록 폭 제한 */
.memopad-fpick .fpick__btn {
  padding: 4px 8px;
  font-size: 11px;
}
.memopad-fsize-pick .fsize-pick__btn {
  padding: 2px 6px;
}
/* 메모장 fsize-pick은 본문 픽커와 다른 attr(data-memopad-fsize-value)을 쓰므로
   본문의 .fsize-pick__btn[data-fsize-value="s|m|l|xl"] 차등(07-misc.css)이 적용되지 않아
   4개 "A"가 모두 같은 크기로 보이던 회귀를 보정. 좌→우 점증으로 "글자 크기 단계" 인지. */
.memopad-fsize-pick .fsize-pick__btn[data-memopad-fsize-value="s"]  { font-size: 10px; }
.memopad-fsize-pick .fsize-pick__btn[data-memopad-fsize-value="m"]  { font-size: 12px; }
.memopad-fsize-pick .fsize-pick__btn[data-memopad-fsize-value="l"]  { font-size: 14px; }
.memopad-fsize-pick .fsize-pick__btn[data-memopad-fsize-value="xl"] { font-size: 16px; }
.memopad__colors {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  margin-left: auto;
}
.memopad__color {
  width: 18px;
  height: 18px;
  padding: 0;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--line);
  cursor: pointer;
}
.memopad__color[aria-pressed="true"] {
  box-shadow: 0 0 0 2px var(--accent);
}
.memopad__color--yellow { background: #fef3c7; }
.memopad__color--pink   { background: #fce7f3; }
.memopad__color--blue   { background: #dbeafe; }
.memopad__color--green  { background: #d1fae5; }
.memopad__color--purple { background: #ede9fe; }

/* 메모 입력 — 메모장 스코프 글자 크기 */
.memopad__compose {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.memopad__textarea {
  width: 100%;
  min-height: 96px;
  resize: vertical;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffef7;  /* fallback (data-memo-color 미설정 케이스) */
  color: var(--ink);
  font-size: 10pt;  /* 기본 10pt — 사용자 명시 */
  line-height: 1.6;
  font-family: inherit;
  transition: background var(--dur-2, 150ms) ease, border-color var(--dur-2, 150ms) ease;
}

.memopad[data-memo-color="yellow"] .memopad__textarea { background: #fef3c7; border-color: rgba(234, 179, 8, 0.40); }
.memopad[data-memo-color="pink"]   .memopad__textarea { background: #fce7f3; border-color: rgba(236, 72, 153, 0.40); }
.memopad[data-memo-color="blue"]   .memopad__textarea { background: #dbeafe; border-color: rgba(59, 130, 246, 0.40); }
.memopad[data-memo-color="green"]  .memopad__textarea { background: #d1fae5; border-color: rgba(16, 185, 129, 0.40); }
.memopad[data-memo-color="purple"] .memopad__textarea { background: #ede9fe; border-color: rgba(139, 92, 246, 0.40); }


.memopad[data-memo-color="yellow"] .memopad__head { background: linear-gradient(135deg, #fde68a, #fef3c7); }
.memopad[data-memo-color="pink"]   .memopad__head { background: linear-gradient(135deg, #fbcfe8, #fce7f3); }
.memopad[data-memo-color="blue"]   .memopad__head { background: linear-gradient(135deg, #bfdbfe, #dbeafe); }
.memopad[data-memo-color="green"]  .memopad__head { background: linear-gradient(135deg, #a7f3d0, #d1fae5); }
.memopad[data-memo-color="purple"] .memopad__head { background: linear-gradient(135deg, #ddd6fe, #ede9fe); }
/* 헤더 색상 변화에도 부드러운 전환 */
.memopad__head { transition: background var(--dur-2, 150ms) ease; }
/* 헤더 카운트 chip — 보라 고정에서 메모지 색에 종속되는 ink 톤으로 자동 보정 (inherit accent) */
.memopad[data-memo-color="yellow"] .memopad__count { background: rgba(180, 83, 9, 0.15); color: #92400e; }
.memopad[data-memo-color="pink"]   .memopad__count { background: rgba(190, 24, 93, 0.15); color: #9d174d; }
.memopad[data-memo-color="blue"]   .memopad__count { background: rgba(29, 78, 216, 0.15); color: #1e40af; }
.memopad[data-memo-color="green"]  .memopad__count { background: rgba(5, 150, 105, 0.15); color: #065f46; }
.memopad[data-memo-color="purple"] .memopad__count { background: rgba(126, 34, 206, 0.18); color: #6b21a8; }
.memopad[data-memo-fsize="s"]  .memopad__textarea { font-size: 9pt; }
.memopad[data-memo-fsize="m"]  .memopad__textarea { font-size: 10pt; }
.memopad[data-memo-fsize="l"]  .memopad__textarea { font-size: 11.5pt; }
.memopad[data-memo-fsize="xl"] .memopad__textarea { font-size: 13pt; }

.memopad__compose-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.memopad__hint {
  font-size: 10px;
  color: var(--ink-mute);
}

/* 메모 리스트 */
.memopad__list-wrap {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.memopad__list-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}
.memopad__list-meta {
  font-size: 10px;
  color: var(--ink-mute);
}
.memopad__list {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.memopad__empty {
  padding: 18px 12px;
  font-size: 11px;
  color: var(--ink-mute);
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: 8px;
}

/* 메모 카드 — 포스트잇 */
.memopad__item {
  position: relative;
  padding: 8px 28px 8px 10px;
  border-radius: 6px;
  cursor: grab;
  user-select: none;
  background: #fef3c7;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  font-size: 10pt;
  line-height: 1.5;
  font-family: inherit;
}
.memopad__item:active { cursor: grabbing; }
/* 끌고 있는 카드 — native drag ghost는 투명하게 대체되므로 원본 카드에 시각 신호.
   사용자가 "지금 이 카드를 끌고 있다"는 인지를 잃지 않게. */
.memopad__item.is-dragging {
  opacity: 0.45;
  outline: 2px solid var(--accent, #4f46e5);
  outline-offset: -2px;
}
.memopad[data-memo-fsize="s"]  .memopad__item { font-size: 9pt; }
.memopad[data-memo-fsize="m"]  .memopad__item { font-size: 10pt; }
.memopad[data-memo-fsize="l"]  .memopad__item { font-size: 11.5pt; }
.memopad[data-memo-fsize="xl"] .memopad__item { font-size: 13pt; }
.memopad__item--yellow { background: #fef3c7; }
.memopad__item--pink   { background: #fce7f3; }
.memopad__item--blue   { background: #dbeafe; }
.memopad__item--green  { background: #d1fae5; }
.memopad__item--purple { background: #ede9fe; }
.memopad__item-text {
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink);
  /* 편집자 페르소나 — 긴 메모 다수 시 카드 비대해져 다른 메모 가림.
     기본 5줄로 자른 뒤 .memopad__item.is-expanded 일 때 전체 노출. */
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.memopad__item.is-expanded .memopad__item-text {
  -webkit-line-clamp: unset;
  overflow: visible;
}
.memopad__item-more {
  margin-top: 4px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 10px;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.memopad__item-more:hover { color: var(--accent-strong, var(--accent)); }
.memopad__item.is-expanded .memopad__item-more::after { content: ''; }
.memopad__item.is-expanded .memopad__item-more::before { content: '접기'; }
.memopad__item:not(.is-expanded) .memopad__item-more::before { content: '더보기'; }
.memopad__item-meta {
  margin-top: 4px;
  font-size: 9px;
  color: var(--ink-mute);
}
.memopad__item-actions {
  position: absolute;
  top: 4px;
  right: 4px;
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--dur-2, 150ms) ease;
}
.memopad__item:hover .memopad__item-actions,
.memopad__item:focus-within .memopad__item-actions { opacity: 1; }
.memopad__item-act {
  width: 20px;
  height: 20px;
  border: 0;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
}
.memopad__item-act:hover { background: rgba(255, 255, 255, 0.95); }

/* 페이저 */
.memopad__pager {
  display: flex;
  gap: 6px;
  justify-content: center;
  padding-top: 6px;
}
.memopad__pager-btn {
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  color: var(--ink);
}
.memopad__pager-btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* 다크 */
:root[data-theme="dark"] .memopad {
  background: #0f1729;
  border-color: rgba(138, 180, 248, 0.18);
  color: #e5e7eb;
}
:root[data-theme="dark"] .memopad__head {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.18), rgba(168, 85, 247, 0.28));
  border-bottom-color: rgba(138, 180, 248, 0.18);
}
:root[data-theme="dark"] .memopad__title { color: #f1f5f9; }
:root[data-theme="dark"] .memopad__count {
  background: rgba(168, 85, 247, 0.30);
  color: #f3e8ff;
}
:root[data-theme="dark"] .memopad__textarea {
  background: #1a2440;
  border-color: rgba(138, 180, 248, 0.22);
  color: #e5e7eb;
}
:root[data-theme="dark"] .memopad__item { filter: brightness(0.92); }
:root[data-theme="dark"] .memopad__item-act { background: rgba(15, 23, 42, 0.55); color: #f1f5f9; }
:root[data-theme="dark"] .memopad__btn { color: #cbd5e1; }
:root[data-theme="dark"] .memopad__btn:hover { background: rgba(255,255,255,0.08); color: #f1f5f9; }
:root[data-theme="dark"] .memopad__pager-btn {
  border-color: rgba(138, 180, 248, 0.22);
  color: #e5e7eb;
}


.tutor-memo-drop-caret {
  position: fixed;
  width: 3px;
  background: #4f46e5;  /* indigo-600 — 본문 대비 분명 */
  pointer-events: none;
  z-index: 2000;
  border-radius: 2px;
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.25),
              0 0 12px 2px rgba(79, 70, 229, 0.45);
  animation: tutor-memo-caret-blink 0.6s ease-in-out infinite;
}
/* 위/아래 가로 캡 — 캐릿이 어디서 어디까지인지 명확. 작가가 한 줄 안의 caret 위치 정확히 인지. */
.tutor-memo-drop-caret::before,
.tutor-memo-drop-caret::after {
  content: '';
  position: absolute;
  left: -3px;
  width: 9px;
  height: 3px;
  background: #4f46e5;
  border-radius: 2px;
}
.tutor-memo-drop-caret::before { top: -3px; }
.tutor-memo-drop-caret::after  { bottom: -3px; }
@keyframes tutor-memo-caret-blink {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 1; }
}
/* drop 가능한 본문 섹션을 강조 — 사용자가 "여기에 놓아도 되는구나" 인지 */
.tutor-section__editable.is-memo-drop-target {
  outline: 2px dashed rgba(79, 70, 229, 0.55);
  outline-offset: -2px;
  background: rgba(79, 70, 229, 0.06);
  transition: background var(--dur-2, 150ms) ease;
  cursor: text;
}

/* 모바일 — 풀폭 거의 모달 */
@media (max-width: 600px) {
  .memopad {
    right: 12px;
    left: 12px;
    bottom: 12px;
    width: auto;
    height: 70vh;
  }
}