/* learn-pages.css — roadmap.html / history.html 전용 스타일.
   style.css 뒤에 로드되며, 색상은 전부 :root 변수만 사용한다. */

/* ---------- 공용: 카드 · 버튼 · 빈 상태 ---------- */

.learn-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  background: var(--accent);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s ease;
}
.learn-btn-primary:hover { background: var(--accent-hover); color: #fff; }

.learn-notice-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.learn-notice-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.learn-notice-card svg { color: var(--accent); flex-shrink: 0; }
.learn-notice-card p { margin: 0; color: var(--text); line-height: 1.7; }
.learn-notice-card p a { color: var(--accent); }
.learn-notice-card .learn-btn-primary { margin-top: 4px; }

.learn-empty-state {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  margin-top: 16px;
  padding: 32px 20px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--muted);
}
.learn-empty-state svg { color: var(--accent); margin-bottom: 4px; }
.learn-empty-state strong { color: var(--text); font-size: 1rem; font-weight: 700; }
.learn-empty-state p { margin: 0; font-size: 0.9rem; line-height: 1.7; max-width: 420px; }

/* ---------- 로드맵: 분야 선택 카드 ---------- */

.learn-picker {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.learn-picker-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
  flex-shrink: 0;
}
.learn-picker-label svg { color: var(--accent); }
.learn-picker select.bookmark-filter-select {
  flex: 1 1 auto;
  min-width: 0;
  padding: 9px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
}
.learn-picker select.bookmark-filter-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* 분야 선택 전: #roadmap-content 가 비어 있을 때만 안내 표시 (JS는 innerHTML="" 로 비움) */
#roadmap-content:empty + .learn-empty-state { display: flex; }

/* ---------- 로드맵: JS 생성 섹션 ---------- */

.learn-roadmap section.roadmap-subcat {
  margin: 16px 0 0;
  padding: 18px 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.15s ease;
}
.learn-roadmap section.roadmap-subcat:hover { border-color: var(--accent); }

.learn-roadmap .roadmap-subcat h2 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}
.learn-roadmap .roadmap-subcat .roadmap-progress-label {
  font-size: 0.78rem;
  font-weight: 600;
  opacity: 1;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 10px;
  border-radius: 999px;
}
.learn-roadmap .roadmap-subcat .flashcard-start-btn {
  margin-left: auto;
  padding: 5px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  transition: background 0.15s ease, color 0.15s ease;
}
.learn-roadmap .roadmap-subcat .flashcard-start-btn:hover {
  background: var(--accent);
  color: #fff;
}

.learn-roadmap .roadmap-subcat .roadmap-progress-bar {
  height: 8px;
  margin: 12px 0 14px;
  border-radius: 999px;
  background: var(--progress-bg);
  overflow: hidden;
}
.learn-roadmap .roadmap-subcat .roadmap-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.25s ease;
}

.learn-roadmap .roadmap-subcat .roadmap-list { gap: 6px; }
.learn-roadmap .roadmap-subcat .roadmap-item label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.learn-roadmap .roadmap-subcat .roadmap-item label:hover {
  border-color: var(--accent);
  background: var(--hover-tint);
}
.learn-roadmap .roadmap-subcat .roadmap-checkbox {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--accent);
  flex-shrink: 0;
  cursor: pointer;
}
.learn-roadmap .roadmap-subcat .roadmap-item a {
  color: var(--text);
  text-decoration: none;
  flex: 1 1 auto;
  min-width: 0;
}
.learn-roadmap .roadmap-subcat .roadmap-item a:hover { color: var(--accent); }
.learn-roadmap .roadmap-subcat .roadmap-item label:has(.roadmap-checkbox:checked) a {
  color: var(--muted);
  text-decoration: line-through;
}
.learn-roadmap .roadmap-subcat .roadmap-difficulty {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

/* ---------- 내 기록 ---------- */

.learn-history .learn-section { margin-top: 8px; }
.learn-history .learn-section h2 {
  margin: 28px 0 12px;
  font-size: 1.25rem;
  font-weight: 700;
}
.learn-history .learn-section:first-child h2 { margin-top: 12px; }

/* 필터 카드 */
.learn-history .bookmark-filters {
  margin: 0 0 14px;
  padding: 12px 14px;
  gap: 10px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.learn-history .bookmark-filters .bookmark-filter-select {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
}
.learn-history .bookmark-filters .bookmark-filter-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.learn-history .bookmark-filters .bookmark-tag-filter-chip {
  padding: 5px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.learn-history .bookmark-filters .bookmark-tag-filter-chip:hover { border-color: var(--accent); }
.learn-history .bookmark-filters .bookmark-tag-filter-chip.is-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* 빈 상태: 점선 박스 */
.learn-history p.history-empty {
  margin: 0;
  padding: 28px 20px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* 리스트 카드 */
.learn-history ul.history-list { margin: 0; gap: 10px; }
.learn-history ul.history-list:empty { display: none; }
.learn-history ul.history-list .history-item {
  padding: 14px 16px;
  border-radius: 10px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.learn-history ul.history-list .history-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.learn-history .history-item .history-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid transparent;
}
.learn-history .history-item .history-badge-term { color: var(--accent); border-color: transparent; }
.learn-history .history-item .history-title { font-weight: 600; }
.learn-history .history-item .history-title a { text-decoration: none; }
.learn-history .history-item .history-title a:hover { color: var(--accent); }
.learn-history .history-item .history-time { font-size: 0.78rem; }
.learn-history .history-item .history-delete-btn {
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.learn-history .history-item .history-delete-btn:hover {
  border-color: var(--error-border);
  color: var(--error-border);
}
.learn-history .history-item .history-delete-btn:disabled { opacity: 0.5; cursor: default; }

/* 즐겨찾기 태그 영역: 카드 안에서 한 줄 아래로 */
.learn-history .bookmark-item .bookmark-tags {
  flex: 1 1 100%;
  order: 10;
  padding-top: 10px;
  margin-top: 4px;
  border-top: 1px solid var(--border);
}
.learn-history .bookmark-item .bookmark-tag-chip {
  padding: 3px 10px;
  font-size: 0.78rem;
  color: var(--accent);
}
.learn-history .bookmark-item .bookmark-tag-remove { color: var(--muted); }
.learn-history .bookmark-item .bookmark-tag-remove:hover { color: var(--error-border); }
.learn-history .bookmark-item .bookmark-tag-add-btn {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px dashed var(--border);
}
.learn-history .bookmark-item .bookmark-tag-add-btn:hover { border-color: var(--accent); }
.learn-history .bookmark-item .bookmark-tag-input {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 999px;
}
.learn-history .bookmark-item .bookmark-tag-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* ---------- 모바일 ---------- */

@media (max-width: 560px) {
  .learn-picker { flex-direction: column; align-items: stretch; gap: 8px; }
  .learn-picker select.bookmark-filter-select { width: 100%; }

  .learn-roadmap section.roadmap-subcat { padding: 14px 14px; }
  .learn-roadmap .roadmap-subcat .flashcard-start-btn { margin-left: 0; flex: 1 1 100%; }

  .learn-notice-card .learn-btn-primary { width: 100%; }

  .learn-history .bookmark-filters { flex-direction: column; align-items: stretch; }
  .learn-history .bookmark-filters .bookmark-filter-select { width: 100%; }

  .learn-history ul.history-list .history-item { padding: 12px 14px; }
  .learn-history .history-item .history-title { flex: 1 1 100%; order: 1; }
  .learn-history .history-item .history-badge { order: 0; }
  .learn-history .history-item .history-time { order: 2; }
  .learn-history .history-item .history-delete-btn { order: 3; margin-left: auto; }
}