/* ===== Explore / Search View ===== */
.search-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 8px 12px;
  transition: border-color 200ms ease;
  overflow: hidden;
}

.search-input-wrap:focus-within {
  border-color: var(--accent);
}

.search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-family);
  font-size: 15px;
  background: transparent;
  color: var(--text-primary);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-clear {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.search-ai-btn {
  padding: 5px 12px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-full);
  background: var(--accent-light);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  transition: all 150ms ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.search-ai-btn:hover {
  background: var(--accent);
  color: white;
}

.search-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 12px 20px;
}

.search-results {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.search-result-card {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 150ms ease;
}

.search-result-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.search-result-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.search-result-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.search-result-match {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.4;
}

.search-result-match mark {
  background: #FEF9C3;
  color: inherit;
  padding: 0 2px;
  border-radius: 2px;
}

.search-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
}

.search-empty-text {
  font-size: 14px;
  color: var(--text-muted);
}

/* 검색 섹션 헤더 (2단 분리) */
.search-section-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 12px 0 6px;
  margin-top: 4px;
}

.search-section-title:first-child {
  padding-top: 0;
  margin-top: 0;
}

/* ===== Folder Tree ===== */
.folder-tree {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.folder-item {
  display: flex;
  flex-direction: column;
}

.folder-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background 150ms ease;
  user-select: none;
}

.folder-header:hover {
  background: var(--bg-secondary);
}

.folder-toggle {
  font-size: 10px;
  color: var(--text-muted);
  width: 14px;
  text-align: center;
  flex-shrink: 0;
}

.folder-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.folder-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.folder-count {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 1px 7px;
  border-radius: 10px;
}

.folder-children {
  padding-left: 20px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background 150ms ease;
}

.file-item:hover {
  background: var(--bg-secondary);
}

.file-icon {
  font-size: 14px;
  flex-shrink: 0;
}

.file-name {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== Note Preview ===== */
.note-preview {
  padding: 0;
}

.note-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.note-preview-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  padding: 4px 0;
}

.note-preview-pdf {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.15s;
}

.note-preview-pdf:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.note-preview-pdf:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.note-preview-back:hover {
  text-decoration: underline;
}

.note-preview-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.3;
}

.note-preview-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.note-preview-content {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-primary);
  word-break: break-word;
}

.note-preview-content h1,
.note-preview-content h2,
.note-preview-content h3 {
  margin-top: 20px;
  margin-bottom: 8px;
}

.note-preview-content p {
  margin-bottom: 10px;
}

.note-preview-content ul,
.note-preview-content ol {
  padding-left: 20px;
  margin-bottom: 10px;
}

.note-preview-content code {
  background: var(--bg-secondary);
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 13px;
}

.note-preview-content pre {
  background: var(--bg-secondary);
  padding: 12px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: 12px;
}

.note-preview-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  color: var(--text-secondary);
  margin: 10px 0;
}

/* Explore mobile */
@media (max-width: 767px) {
  .search-header {
    padding: 12px 14px 10px;
  }

  .search-input {
    font-size: 16px;  /* iOS 줌 방지 */
    min-width: 0;
  }

  .search-ai-btn {
    padding: 4px 10px;
    font-size: 11px;
  }

  .search-scroll {
    padding: 10px 14px;
  }

  .note-preview {
    padding: 0;
  }

  .note-preview-title {
    font-size: 18px;
  }

  .folder-header {
    padding: 12px 10px;
  }

  .file-item {
    padding: 10px 10px;
  }
}