/* ============================================================
   「課題」タブ: カンバンボード
   ツリー（目的→行動の構造的分解）とは別レイヤーで、実行中に出てきた
   気づき・ToDoをフラットに受け止めるメモ置き場。課題はWBSに属する共有データで、
   user_idは起票者を示す。自分の課題モードでは、自分が担当する課題をWBS横断で表示する。
   ============================================================ */
.issues-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--paper);
}
.issues-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--rule);
}
.issues-hint {
  justify-self: start;
  font-size: 11px;
  color: var(--ink-faint);
}
.issues-mode-select {
  justify-self: center;
  max-width: min(360px, 45vw);
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  color: var(--ink-dim);
  padding: 7px 10px;
  font-size: 12px;
  font-family: var(--font-sans);
}
.issues-mode-select:focus { outline: none; border-color: var(--accent); }
#issues-export-btn {
  justify-self: end;
  flex: 0 0 auto;
}

.issues-quick-add {
  display: flex;
  gap: 8px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--rule);
}
.issues-quick-add-input {
  flex: 1;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  color: var(--ink);
  padding: 10px 12px;
  font-size: 13px;
  font-family: var(--font-sans);
}
.issues-quick-add-input:focus { outline: none; border-color: var(--accent); }

.issues-filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  padding: 8px 20px 10px;
  border-bottom: 1px dashed var(--rule);
}
.issues-search-input {
  flex: 1 1 220px;
  min-width: 160px;
  background: var(--paper);
  border: 1px solid var(--rule);
  color: var(--ink);
  padding: 7px 10px;
  font-size: 12px;
  font-family: var(--font-sans);
}
.issues-search-input:focus { outline: none; border-color: var(--accent); }
.issues-status-filter { display: flex; flex-wrap: wrap; gap: 4px; }
.issues-filter-chip {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 7px;
  cursor: pointer;
}
.issues-filter-chip:hover, .issues-filter-chip.active { border-color: var(--accent); color: var(--ink); }
.issues-filter-count {
  margin-left: auto;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 10px;
  white-space: nowrap;
}

.issues-board {
  flex: 1;
  display: flex;
  gap: 1px;
  background: var(--paper);
  overflow: auto;
  min-height: 0;
}
.issues-column {
  flex: 1;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  min-height: 0;
}
.issues-column.drop-target { background: var(--paper-raised); box-shadow: inset 0 0 0 2px var(--accent); }
.issues-column-header {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-dim);
  padding: 10px 14px;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.issues-column[data-status="done"] .issues-column-header { color: var(--green); }
.issues-column-count { font-family: var(--font-mono); color: var(--ink-faint); font-weight: 400; }
.issues-column-header > span:first-child { display: inline-flex; align-items: baseline; gap: 6px; }

.issues-column-list {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.issue-deadline-group {
  border: 1px solid var(--rule);
  background: var(--paper);
}
.issue-deadline-group h4 {
  margin: 0;
  padding: 7px 10px;
  border-bottom: 1px solid var(--rule);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-faint);
}
.issue-deadline-items {
  display: flex;
  flex-direction: column;
}
.issue-deadline-items .issue-card {
  border: 0;
  border-bottom: 1px solid var(--rule);
}
.issue-deadline-items .issue-card:last-child { border-bottom: 0; }

.issue-card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  padding: 10px 12px;
  cursor: grab;
  touch-action: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.issue-card:hover { border-color: var(--accent); }
.issue-card.dragging { opacity: 0.5; cursor: grabbing; }
.issue-card-title { font-size: 13px; color: var(--ink); word-break: break-word; }
.issue-card-meta,
.issue-card-project-name {
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.5;
  word-break: break-word;
}
.issue-card-meta { margin-top: 5px; }
.issue-card-project-name { margin-bottom: 5px; }
.tree-task-meta {
  color: var(--ink-faint);
  font-size: 10px;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.root-admin-card { width: min(900px, 94vw); max-height: 85vh; overflow: auto; }
.root-admin-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 7px 0; border-bottom: 1px solid var(--rule); font-size: 12px; }
.issue-card-memo {
  font-size: 11px;
  color: var(--ink-faint);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.issue-card-link {
  align-self: flex-start;
  background: transparent;
  border: none;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 0;
  text-decoration: underline;
  cursor: pointer;
}

.issues-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 13px;
}

@media (max-width: 640px) {
  /* 3列横並びだとiPhone幅では1列あたりの表示幅が確保できないため、640px以下では
     縦積みに切り替える（今日タブの候補/カレンダー分割と同じ対応方針）。 */
  .issues-board { flex-direction: column; overflow: visible; overflow-y: auto; }
  .issues-column { min-width: 0; }
  .issues-column-list { overflow-y: visible; }
  .issues-filter-bar { padding-left: 12px; padding-right: 12px; }
  .issues-search-input { flex-basis: 100%; }
  .issues-filter-count { margin-left: 0; }
  .issue-modal-attributes { grid-template-columns: 1fr; gap: 14px; }
  .issue-modal-linked-row { flex-direction: column; align-items: stretch; }
  .issue-modal-linked-row .btn-secondary { width: 100%; }
}

/* 課題詳細モーダル */ 
.modal-card textarea, .modal-card select {
  background: var(--paper);
  border: 1px solid var(--rule);
  color: var(--ink);
  padding: 10px 12px;
  font-size: 13px;
  font-family: inherit;
  width: 100%;
}
.modal-card textarea { box-sizing: border-box; }
.issue-modal-attributes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.issue-modal-date {
  width: 100%;
  box-sizing: border-box;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  color: var(--ink);
  padding: 8px 10px;
  font-size: 12px;
  font-family: var(--font-mono);
  color-scheme: dark;
}
.issue-modal-inline-hint { display: inline; margin-left: 6px; }
.issue-modal-linked-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}
.issue-modal-linked-row .issue-node-combobox { flex: 1; min-width: 0; }
.issue-modal-linked-row .btn-secondary { flex: 0 0 auto; white-space: nowrap; }
.modal-card textarea:focus, .modal-card select:focus,
.issue-modal-date:focus { outline: none; border-color: var(--accent); }
.issue-modal-promoted-note {
  font-size: 12px;
  color: var(--green);
  margin-bottom: 14px;
}
.issue-node-combobox { position: relative; width: 100%; }
.issue-node-combobox .combobox-input { box-sizing: border-box; }
.issue-node-combobox-option, .issue-node-combobox-none { white-space: pre; overflow: hidden; text-overflow: ellipsis; }
.issue-node-combobox-none { color: var(--ink-faint); border-bottom: 1px solid var(--rule); }

/* 課題の同一WBS内ドラッグ並び替え */
.issue-card.drop-before { box-shadow: inset 0 2px 0 var(--accent); }
.issue-card.drop-after { box-shadow: inset 0 -2px 0 var(--accent); }

/* 回復用下書き: 保存先を失った入力を、他の画面操作に埋もれさせない。 */
.recovery-drafts-panel {
  position: fixed;
  z-index: 1500;
  right: 16px;
  bottom: 16px;
  width: min(720px, calc(100vw - 32px));
  max-height: min(52vh, 540px);
  overflow: auto;
  box-sizing: border-box;
  padding: 16px;
  background: var(--paper-raised);
  border: 1px solid var(--accent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, .32);
}
.recovery-drafts-heading strong { color: var(--ink); font-size: 13px; }
.recovery-drafts-heading p { margin: 6px 0 12px; color: var(--ink-faint); font-size: 11px; line-height: 1.55; }
.recovery-draft-item { padding: 12px 0; border-top: 1px solid var(--rule); }
.recovery-draft-summary strong { font-size: 12px; color: var(--ink); overflow-wrap: anywhere; }
.recovery-draft-summary p { margin: 5px 0 10px; font-size: 11px; color: var(--ink-faint); }
.recovery-draft-actions { display: flex; flex-wrap: wrap; gap: 7px; }
.recovery-draft-actions button { font-size: 11px; padding: 7px 9px; }
@media (max-width: 640px) {
  .recovery-drafts-panel { right: 8px; bottom: 8px; width: calc(100vw - 16px); max-height: 58vh; padding: 12px; }
  .recovery-draft-actions { display: grid; grid-template-columns: 1fr 1fr; }
}

.issues-load-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  margin-bottom: 12px;
  border: 1px solid var(--rule);
  color: var(--ink-faint);
  font-size: 12px;
}
.issues-load-status.error { border-color: var(--red); color: var(--red); }
.issues-load-status button { flex: 0 0 auto; }