/* app.css — task-manager-v2 全体スタイル（設計書§9）
   軽量なワークスペースUI。白い作業面と淡いキャンバスを、余白と階層で整理する。
   ビュー固有（board/calendar/gantt/today）は views.css 側。 */

:root {
  --ink: #182230;
  --muted: #697386;
  --accent: #5865d8;
  --accent-dark: #4653c3;
  --accent-tint: #eef0ff;
  --bg: #ffffff;
  --canvas: #f4f6fa;
  --bg-sub: #f7f8fb;
  --line: #e5e8ef;
  --line-strong: #d5dae5;
  --red: #dc2626;
  --red-tint: #fee2e2;
  --orange: #ea580c;
  --orange-tint: #ffedd5;
  --green: #16a34a;
  --green-tint: #dcfce7;
  --radius: 9px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 14px rgba(16, 24, 40, .04);
  --shadow-lg: 0 24px 70px rgba(16, 24, 40, .2);
  --header-h: 64px;
}

/* ---- ベース ---- */
* { box-sizing: border-box; }
html { scrollbar-gutter: stable; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "BIZ UDPGothic", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--canvas);
}

/* ---- ページ遷移 ----
   PHPの応答待ち中に古い画面を読める状態で残さない。ヘッダーは固定したまま、
   作業面だけを次の画面と同じ背景で覆い、細い進捗表示で操作を受け付けたことを返す。 */
.page-transition {
  position: fixed;
  inset: 0 0 0 var(--sidebar-w);
  z-index: 10000;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: var(--canvas);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.page-transition-label {
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  box-shadow: var(--shadow-sm);
  font-size: 11px;
  letter-spacing: .04em;
}
.page-transition-bar {
  position: absolute;
  inset: 0 auto auto 0;
  width: 32%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: translateX(-110%);
}
html.is-page-leaving .page-transition {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
html.is-page-leaving .page-transition-bar {
  animation: page-transition-progress 850ms ease-in-out infinite;
}
html[data-sidebar="collapsed"] .page-transition { left: var(--sidebar-collapsed-w); }
@keyframes page-transition-progress {
  to { transform: translateX(420%); }
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-weight: 700; line-height: 1.4; }
h1 { font-size: 20px; }
h2 { font-size: 16px; }
h3 { font-size: 14px; }

/* ---- 共通ヘッダー ---- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: var(--header-h);
  padding: 8px 14px;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(16, 24, 40, .02), 0 6px 24px rgba(16, 24, 40, .035);
  backdrop-filter: blur(14px);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  white-space: nowrap;
}
.logo:hover { text-decoration: none; color: var(--accent); }
.logo-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(145deg, #6c78e6, var(--accent-dark));
  box-shadow: 0 5px 14px rgba(70, 83, 195, .22);
  font-size: 15px;
}
.logo-copy { display: grid; gap: 0; line-height: 1; }
.logo-copy b { color: var(--ink); font-size: 13px; letter-spacing: .02em; }
.logo-copy small { margin-top: 3px; color: var(--muted); font-size: 8px; letter-spacing: .18em; }

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 4px 10px;
  font-size: 16px;
  cursor: pointer;
}

.app-nav { display: flex; align-items: center; gap: 2px; }
.app-nav a {
  display: inline-block;
  padding: 7px 9px;
  color: var(--muted);
  font-size: 12px;
  border-radius: 8px;
  white-space: nowrap;
}
.app-nav a:hover { color: var(--ink); background: var(--bg-sub); text-decoration: none; }
.app-nav a.active {
  color: var(--accent-dark);
  background: var(--accent-tint);
  font-weight: 700;
}

.nav-more {
  position: relative;
}
.nav-more > summary {
  padding: 7px 9px;
  color: var(--muted);
  font-size: 12px;
  border-radius: 8px;
  cursor: pointer;
  list-style: none;
  white-space: nowrap;
}
.nav-more > summary::-webkit-details-marker { display: none; }
.nav-more > summary::after {
  content: "⌄";
  margin-left: 4px;
  font-size: 10px;
}
.nav-more > summary:hover,
.nav-more > summary.active {
  color: var(--accent-dark);
  background: var(--accent-tint);
}
.nav-more > summary.active {
  font-weight: 700;
}
.nav-more-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  z-index: 120;
  display: grid;
  min-width: 160px;
  padding: 6px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
}
.nav-more-menu a,
.nav-more-menu a.active {
  padding: 8px 10px;
  border: 0;
  border-radius: 6px;
}
.nav-more-menu a:hover,
.nav-more-menu a.active {
  background: var(--accent-tint);
  text-decoration: none;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 7px;
  flex: 1;
  min-width: 0;
}
.quick-add-wrap { position: relative; flex: 1; min-width: 140px; max-width: 360px; }
.quick-add-input, .global-search-input {
  width: 100%;
  height: 36px;
  padding: 7px 11px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}
.global-search-input { width: 145px; flex: none; }
.quick-add-input:focus, .global-search-input:focus {
  outline: none;
  background: var(--bg);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(88, 101, 216, .12);
}

/* クイック追加の解析チップ（quickadd.jsが使用） */
.qa-chips {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 110;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 6px 8px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(31, 41, 55, 0.08);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 8px;
  font-size: 12px;
  background: var(--accent-tint);
  color: var(--accent-dark);
  border-radius: 999px;
  white-space: nowrap;
}
.chip .chip-x {
  border: none;
  background: none;
  padding: 0;
  font-size: 12px;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
}
.chip .chip-x:hover { color: var(--red); }

.header-user {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.realtime-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #667085;
  font-size: 10px;
}
.realtime-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px var(--green-tint);
}
.realtime-status.is-waiting i { background: var(--orange); box-shadow: 0 0 0 3px var(--orange-tint); }
.realtime-status.is-offline i { background: var(--red); box-shadow: 0 0 0 3px var(--red-tint); }
.user-name { font-size: 13px; color: var(--muted); }
.user-avatar {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid #dfe3f2;
  border-radius: 50%;
  color: var(--accent-dark);
  background: var(--accent-tint);
  font-size: 12px;
  font-weight: 700;
}
.logout-form { display: inline; margin: 0; }

/* ---- メイン領域 ---- */
.page-main { min-height: calc(100vh - var(--header-h)); padding: 22px 20px 48px; }

/* ---- ボタン ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 16px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 9px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease, box-shadow 120ms ease;
}
.btn:hover { background: var(--bg-sub); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { color: #fff; background: var(--accent); border-color: var(--accent); box-shadow: 0 4px 12px rgba(70, 83, 195, .16); }
.btn-primary:hover { background: var(--accent-dark); box-shadow: 0 6px 16px rgba(70, 83, 195, .22); }
.btn-danger { color: #fff; background: var(--red); border-color: var(--red); }
.btn-danger:hover { opacity: 0.9; background: var(--red); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--accent); }
.btn-ghost:hover { background: var(--accent-tint); }
.btn-sm { padding: 3px 10px; font-size: 12px; }
.btn-block { display: flex; width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-link {
  border: none;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 13px;
  color: var(--accent);
  cursor: pointer;
}
.btn-link:hover { text-decoration: underline; }

/* ---- フォーム ---- */
.form-label {
  display: block;
  margin: 12px 0 4px;
  font-size: 12px;
  color: var(--muted);
}
.form-input, .form-select, .form-textarea,
input[type="text"], input[type="password"], input[type="date"], input[type="search"],
select, textarea {
  font: inherit;
  font-size: 13px;
  color: var(--ink);
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 7px 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-textarea { resize: vertical; min-height: 80px; }
.form-row { margin-bottom: 12px; }

/* ---- テーブル基礎 ---- */
.task-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg);
}
.task-table th {
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
  text-align: left;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.task-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.task-table tbody tr:hover { background: var(--bg-sub); }
.task-table tbody tr.selected { background: var(--accent-tint); }
.table-scroll { overflow-x: auto; }

/* ---- バッジ基礎（task_row.php が使用） ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 8px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--muted);
  background: var(--bg-sub);
  border-radius: 999px;
  white-space: nowrap;
}

/* 期限バッジ: due_badge_class() の返り値（overdue|today|future|done）と対応 */
.badge-due.overdue { color: var(--red); background: var(--red-tint); font-weight: 700; }
.badge-due.today { color: var(--orange); background: var(--orange-tint); font-weight: 700; }
.badge-due.done { color: var(--green); background: var(--green-tint); }
.badge-due.future { color: var(--muted); background: var(--bg-sub); }

/* 優先度ドット: 1=緊急(星) 2=高(橙) 3=通常(グレー) */
.prio-dot {
  display: inline-grid;
  width: 14px;
  height: 14px;
  place-items: center;
  flex: none;
}
.prio-dot::before { line-height: 1; }
.prio-dot.prio-1::before {
  content: "★";
  color: #e03131;
  font: 900 18px/1 Arial, sans-serif;
  text-shadow: 0 0 8px rgba(224, 49, 49, .24);
}
.prio-dot.prio-2::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: #f2c94c; }
.prio-dot.prio-3::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: #98a2b3; }

/* タグチップ（色は各タグのcolorをインラインstyleで上書き） */
.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  font-size: 11px;
  line-height: 1.7;
  color: var(--muted);
  background: var(--bg-sub);
  border-radius: 999px;
  white-space: nowrap;
}

.badge-blocked { color: var(--red); background: var(--red-tint); }
.badge-recur { color: var(--accent-dark); background: var(--accent-tint); }

/* ---- フィルタバー（ヘッダー下常設。§9） ---- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 20px;
  font-size: 13px;
  color: var(--accent-dark);
  background: var(--accent-tint);
  border-bottom: 1px solid var(--line);
}
.filter-bar .filter-clear {
  border: none;
  background: none;
  padding: 0 4px;
  font-size: 14px;
  color: var(--accent-dark);
  cursor: pointer;
}

/* ---- 一括操作バー（選択中に上部固定。§9） ---- */
.bulk-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 20px;
  background: var(--bg);
  border-bottom: 2px solid var(--accent);
}
.bulk-bar .bulk-count { font-weight: 700; color: var(--accent); }

/* ---- トースト ---- */
#toast-container {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  max-width: 320px;
  padding: 10px 16px;
  font-size: 13px;
  color: #fff;
  background: var(--ink);
  border-radius: var(--radius);
  box-shadow: 0 2px 10px rgba(31, 41, 55, 0.2);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s, transform 0.25s;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast-success { background: var(--green); }
.toast-error { background: var(--red); }

/* ---- モーダル ---- */
body.modal-open { overflow: hidden; }
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 5vh 16px 24px;
  background: rgba(20, 28, 43, .46);
  backdrop-filter: blur(5px);
  animation: modal-overlay-in 160ms ease-out both;
}
.modal-box {
  width: 100%;
  max-width: 760px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 20px 24px;
  background: var(--bg);
  border: 1px solid rgba(255, 255, 255, .7);
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  animation: modal-box-in 180ms cubic-bezier(.2, .8, .2, 1) both;
}
.modal-box:has(.task-create),
.modal-box:has(.task-editor) { padding: 0; overflow: hidden auto; }
.modal-overlay:has(.calendar-day-modal) { align-items: center; padding: 16px; }
.calendar-day-head-actions { display: flex; align-items: center; gap: 8px; }
.calendar-day-create {
  padding: 6px 10px;
  color: var(--accent-dark);
  background: var(--accent-tint);
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.calendar-day-create:hover { color: #fff; background: var(--accent); }
.calendar-day-empty { margin: 18px 4px; color: var(--muted); text-align: center; }
.modal-overlay.is-closing { animation: modal-overlay-out 160ms ease-in both; }
.modal-overlay.is-closing .modal-box { animation: modal-box-out 160ms ease-in both; }
@keyframes modal-overlay-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-overlay-out { from { opacity: 1; } to { opacity: 0; } }
@keyframes modal-box-in {
  from { opacity: 0; transform: translateY(12px) scale(.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes modal-box-out {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(8px) scale(.99); }
}

/* ---- 楽観的更新中 ---- */
.is-busy { opacity: 0.55; pointer-events: none; }

/* ---- ログイン画面 ---- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-sub);
}
.login-box {
  width: 100%;
  max-width: 360px;
  padding: 32px 28px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.login-title { margin: 0; font-size: 20px; text-align: center; }
.login-sub {
  margin: 4px 0 16px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}
.login-error {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--red);
  background: var(--red-tint);
  border-radius: var(--radius);
}
.login-box .btn-block { margin-top: 20px; }

/* ---- レスポンシブ骨格（768px以下。§9） ---- */
@media (max-width: 768px) {
  .app-header { flex-wrap: wrap; padding: 8px 12px; gap: 8px; }
  .nav-toggle { display: inline-block; }

  /* ナビはハンバーガー開閉 */
  .app-nav { display: none; }
  body.nav-open .app-nav {
    display: flex;
    flex-direction: column;
    width: 100%;
    order: 10;
    border-top: 1px solid var(--line);
  }
  body.nav-open .app-nav a {
    padding: 10px 4px;
    border-bottom: 1px solid var(--line);
  }
  body.nav-open .app-nav a.active { border-bottom-color: var(--line); }

  body.nav-open .nav-more { width: 100%; }
  body.nav-open .nav-more > summary {
    padding: 10px 4px;
    border-bottom: 1px solid var(--line);
  }
  body.nav-open .nav-more-menu {
    position: static;
    padding: 4px 0 4px 12px;
    border: 0;
    box-shadow: none;
  }

  .header-tools { order: 5; width: 100%; flex-wrap: wrap; }
  .quick-add-wrap { max-width: none; width: 100%; flex: 1 1 100%; }
  .global-search-input { width: 100%; flex: 1 1 100%; }
  .user-name { display: none; }
  .page-main { padding: 12px; }

  /* テーブルはカード化（各ビューが .table-cards を付けて詳細を実装する） */
  .task-table.table-cards, .task-table.table-cards tbody, .task-table.table-cards tr,
  .task-table.table-cards td { display: block; width: 100%; }
  .task-table.table-cards thead { display: none; }
  .task-table.table-cards tr {
    margin-bottom: 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }
  .task-table.table-cards td { border-bottom: none; padding: 4px 12px; }
  .task-table.table-cards td:first-child { padding-top: 10px; }
  .task-table.table-cards td:last-child { padding-bottom: 10px; }

  /* ボードは横スクロール（列レイアウト詳細は views.css 側） */
  .board-columns { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  .modal-overlay { padding: 0; align-items: stretch; }
  .modal-box { max-width: none; max-height: none; border-radius: 0; }
}
.header-create-task {
  white-space: nowrap;
}

.task-create {
  width: min(760px, 92vw);
  background: var(--bg);
}

.task-create-header {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 22px 24px 18px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, #fafbff 0%, #f4f5ff 100%);
}
.task-create-icon {
  display: grid;
  width: 39px;
  height: 39px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: var(--accent);
  box-shadow: 0 7px 18px rgba(70, 83, 195, .22);
  font-size: 20px;
}
.task-create-heading-copy { flex: 1 1 0%; min-width: 0; }
.task-create-kicker {
  color: var(--accent-dark);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.task-create-heading {
  margin: 2px 0 0;
  font-size: 22px;
  letter-spacing: -.02em;
}
.task-create-heading-copy p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12px;
}
.task-create-header .td-close {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
  margin-left: auto;
  border-radius: 9px;
  font-size: 23px;
}
.task-create-header .td-close:hover { background: rgba(255, 255, 255, .8); }

.task-create-form {
  display: grid;
  gap: 18px;
  padding: 22px 24px 20px;
}
.task-create-form label { display: grid; gap: 6px; }

.task-create-composer {
  padding: 14px 16px 12px;
  border: 1px solid #dfe3f2;
  border-radius: 14px;
  background: var(--bg);
  box-shadow: 0 3px 14px rgba(16, 24, 40, .035);
}
.task-create-title > span,
.task-create-field > span,
.task-create-notes label > span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.task-create-title input {
  padding: 3px 0 6px;
  border: 0;
  border-bottom: 1px solid transparent;
  border-radius: 0;
  outline: none;
  color: var(--ink);
  background: transparent;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.015em;
}
.task-create-title input::placeholder { color: #a2aabd; font-weight: 500; }
.task-create-title input:focus { border-bottom-color: var(--accent); }
.task-create-composer > small { display: block; margin-top: 5px; color: #98a2b3; font-size: 10px; }

.task-title-prefixes { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.task-title-prefix-btn {
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--bg);
  font-size: 11px;
  line-height: 1.6;
  cursor: pointer;
}
.task-title-prefix-btn:hover,
.task-title-prefix-btn:focus-visible {
  color: var(--accent-dark);
  border-color: var(--accent);
  background: var(--accent-tint);
  outline: none;
}

.task-create-properties { display: grid; gap: 10px; }
.task-create-section-head { display: flex; align-items: baseline; gap: 10px; }
.task-create-section-head h2 { margin: 0; font-size: 13px; }
.task-create-section-head span { color: #98a2b3; font-size: 10px; }

.task-create-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}
.task-create-field { grid-column: span 2; }
.task-create-project { grid-column: span 4; }
.task-create-field input,
.task-create-field select {
  height: 39px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-sub);
}
.task-priority-control {
  --priority-color: #4f6fbd;
  border-color: color-mix(in srgb, var(--priority-color) 28%, var(--line)) !important;
  color: color-mix(in srgb, var(--priority-color) 82%, var(--ink)) !important;
  background: color-mix(in srgb, var(--priority-color) 10%, var(--bg)) !important;
  font-weight: 700;
}
.task-priority-control[data-priority="1"] { --priority-color: #e03131; }
.task-priority-control[data-priority="2"] { --priority-color: #d99a00; }
.task-priority-control[data-priority="3"] { --priority-color: #8a94a6; }
.task-priority-control:hover,
.task-priority-control:focus {
  border-color: color-mix(in srgb, var(--priority-color) 48%, var(--line)) !important;
  background: color-mix(in srgb, var(--priority-color) 15%, var(--bg)) !important;
}
.modern-date-control {
  position: relative;
  display: flex;
  min-width: 0;
}
.modern-date-trigger {
  display: flex;
  width: 100%;
  height: 39px;
  align-items: center;
  gap: 8px;
  padding: 7px 34px 7px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--ink);
  background: var(--bg-sub);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.modern-date-trigger:hover,
.modern-date-trigger:focus-visible {
  border-color: var(--accent);
  background: var(--bg);
  box-shadow: 0 0 0 3px rgba(88, 101, 216, .1);
  outline: none;
}
.modern-date-trigger svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--accent-dark);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}
.modern-date-label { overflow: hidden; color: var(--muted); text-overflow: ellipsis; white-space: nowrap; }
.modern-date-control.has-value .modern-date-label { color: var(--ink); font-weight: 650; }
.modern-date-clear {
  position: absolute;
  top: 50%;
  right: 7px;
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 7px;
  color: var(--muted);
  background: transparent;
  font-size: 16px;
  cursor: pointer;
  transform: translateY(-50%);
}
.modern-date-clear:hover { color: var(--ink); background: var(--bg); }
.modern-date-clear[hidden] { display: none; }
.modern-date-popover {
  position: fixed;
  z-index: 280;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 15px;
  color: var(--ink);
  background: color-mix(in srgb, var(--bg) 96%, transparent);
  box-shadow: 0 22px 55px rgba(16, 24, 40, .2);
  backdrop-filter: blur(14px);
  animation: modern-date-in 120ms cubic-bezier(.2, .8, .2, 1) both;
}
.modern-date-popover.is-closing { opacity: 0; transform: translateY(-3px) scale(.99); transition: opacity 100ms ease, transform 100ms ease; }
.modern-date-head {
  display: grid;
  grid-template-columns: 34px 1fr 34px;
  align-items: center;
  margin-bottom: 10px;
}
.modern-date-head strong { text-align: center; font-size: 14px; letter-spacing: -.01em; }
.modern-date-nav {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 9px;
  color: var(--muted);
  background: transparent;
  font-size: 23px;
  cursor: pointer;
}
.modern-date-nav:hover { color: var(--ink); background: var(--bg-sub); }
.modern-date-weekdays,
.modern-date-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px; }
.modern-date-weekdays { margin-bottom: 4px; }
.modern-date-weekdays span { padding: 3px 0; color: var(--muted); font-size: 9px; font-weight: 700; text-align: center; }
.modern-date-day {
  display: grid;
  aspect-ratio: 1;
  min-width: 0;
  place-items: center;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
.modern-date-day:hover { border-color: var(--line); background: var(--bg-sub); }
.modern-date-day.is-outside { color: color-mix(in srgb, var(--muted) 42%, transparent); }
.modern-date-day.is-today { border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); color: var(--accent-dark); font-weight: 800; }
.modern-date-day.is-selected { border-color: var(--accent); color: #fff; background: var(--accent); box-shadow: 0 5px 14px rgba(88, 101, 216, .24); font-weight: 800; }
.modern-date-footer {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 10px;
  padding-top: 9px;
  border-top: 1px solid var(--line);
}
.modern-date-footer button {
  padding: 5px 7px;
  border: 0;
  border-radius: 7px;
  color: var(--accent-dark);
  background: transparent;
  font: inherit;
  font-size: 11px;
  cursor: pointer;
}
.modern-date-footer button:hover { background: var(--accent-tint); }
@keyframes modern-date-in {
  from { opacity: 0; transform: translateY(5px) scale(.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
/* テーブルセル内のインライン編集列は、フォーム内より控えめなサイズにする
   （一覧・マイページ/プロジェクトのタスク一覧テーブルの予定日列）。 */
td .modern-date-control { width: 100%; }
td .modern-date-trigger {
  height: 28px;
  gap: 5px;
  padding: 4px 22px 4px 7px;
  font-size: 11px;
  border-radius: 6px;
}
td .modern-date-trigger svg { width: 12px; height: 12px; }
td .modern-date-clear { width: 18px; height: 18px; right: 3px; }
.task-create-field input:focus,
.task-create-field select:focus,
.task-create-notes textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
  box-shadow: 0 0 0 3px rgba(88, 101, 216, .1);
}

.task-create-form input,
.task-create-form select,
.task-create-form textarea {
  box-sizing: border-box;
  width: 100%;
}

.task-create-more {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-sub);
}
.task-create-more > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 13px;
  cursor: pointer;
  list-style: none;
  font-size: 12px;
  font-weight: 700;
}
.task-create-more > summary::-webkit-details-marker { display: none; }
.task-create-more > summary::before { content: "+"; color: var(--accent); font-size: 16px; font-weight: 400; }
.task-create-more[open] > summary::before { content: "−"; }
.task-create-more > summary small { margin-left: auto; color: #98a2b3; font-size: 10px; font-weight: 400; }
.task-create-more[open] > summary { border-bottom: 1px solid var(--line); background: var(--bg); }
.task-create-notes { display: grid; gap: 12px; padding: 14px; background: var(--bg); }
.task-create-notes textarea {
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg);
  resize: vertical;
}
.task-create-child-panel {
  display: grid;
  gap: 9px;
  padding: 13px 14px 14px;
  background: var(--bg);
}
.task-create-child-panel > p,
.task-create-child-panel > small { margin: 0; color: var(--muted); font-size: 11px; }
.task-create-child-list { display: grid; gap: 6px; }
.task-create-child-row {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) 28px;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 2px 5px 2px 9px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-sub);
}
.task-create-child-branch { color: var(--muted); font-size: 16px; }
.task-create-child-row input {
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-size: 13px;
}
.task-create-child-row:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(88, 101, 216, .08); }
.task-create-child-row button {
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 7px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}
.task-create-child-row button:hover { color: var(--red); background: var(--red-tint); }
.task-create-child-add {
  justify-self: start;
  padding: 5px 8px;
  border: 0;
  border-radius: 7px;
  color: var(--accent-dark);
  background: transparent;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.task-create-child-add:hover { background: var(--accent-tint); }

[data-priority="1"] .task-priority-emoji,
.task-editor[data-priority="1"] [data-title-priority-emoji],
.task-editor[data-priority="1"] .task-editor-priority-icon {
  color: #e03131;
  font-family: Arial, sans-serif;
  font-size: 1.28em;
  font-weight: 900;
  text-shadow: 0 0 8px rgba(224, 49, 49, .2);
}
[data-priority="2"] .task-priority-emoji,
.task-editor[data-priority="2"] [data-title-priority-emoji] { color: #d99a00; }
[data-priority="3"] .task-priority-emoji,
.task-editor[data-priority="3"] [data-title-priority-emoji] { color: #98a2b3; }

.task-create-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 2px;
}
.task-create-actions p { margin: 0; color: #98a2b3; font-size: 10px; }
.task-create-actions kbd {
  padding: 2px 5px;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  color: var(--muted);
  background: var(--bg);
  font: inherit;
}
.task-create-actions > div { display: flex; gap: 8px; }
.task-create-actions .btn { min-height: 38px; }
.task-create-actions .btn-primary { padding-inline: 18px; }

.task-create-page {
  display: flex;
  justify-content: center;
}
.task-create-page .task-create {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 760px) {
  .header-create-task {
    padding-inline: 10px;
  }

  .task-create-grid {
    grid-template-columns: 1fr;
  }
  .task-create-field,
  .task-create-project { grid-column: auto; }
  .task-create-header { padding: 18px; }
  .task-create-form { padding: 18px; }
  .task-create-heading-copy p,
  .task-create-actions p { display: none; }
  .task-create-actions > div { width: 100%; }
  .task-create-actions .btn { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ---- デスクトップ・サイドバー ---- */
:root { --sidebar-w: 232px; --sidebar-collapsed-w: 76px; }
.app-header {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  min-height: 100vh;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  padding: 12px 11px;
  border-right: 1px solid var(--line);
  border-bottom: 0;
  transition: width 150ms ease;
}
.sidebar-head { display: flex; align-items: center; justify-content: flex-start; gap: 8px; min-height: 40px; }
/* 開閉ボタンはサイドバー右端の境界線上に固定し、展開/折りたたみで位置が変わらないようにする。 */
.nav-toggle {
  position: absolute;
  top: 18px;
  right: -13px;
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  background: var(--bg);
  box-shadow: 0 1px 4px rgba(16, 24, 40, .14);
  font-size: 16px;
  z-index: 20;
}
.nav-toggle:hover { color: var(--ink); background: var(--bg-sub); }
.app-nav {
  display: grid;
  flex: 1 1 auto;
  gap: 3px;
  width: 100%;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.app-nav::-webkit-scrollbar { display: none; }
.app-nav a,
.nav-more > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 37px;
  padding: 7px 9px;
  border-radius: 9px;
}
.nav-icon {
  display: inline-grid;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  place-items: center;
  color: currentColor;
  font-size: 16px;
  line-height: 1;
}
.nav-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.nav-more > summary::after { margin-left: auto; }
.nav-more-menu { top: 0; left: calc(100% + 8px); right: auto; }
.header-create-task { width: 100%; min-height: 39px; }
.header-create-task em,
.theme-toggle em { font-style: normal; }
.header-tools { display: grid; flex: 0 0 auto; gap: 7px; width: 100%; }
.quick-add-wrap { width: 100%; max-width: none; min-width: 0; }
.global-search-input { width: 100%; }
.header-user {
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: auto;
  padding: 11px 3px 0;
  border-top: 1px solid var(--line);
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 30px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: var(--bg);
  font: inherit;
  font-size: 11px;
  cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); background: var(--bg-sub); }
.header-user .user-avatar { margin-left: auto; }
.logout-form { width: 100%; }
.logout-form .btn-link { color: var(--muted); font-size: 11px; }
.page-main { margin-left: var(--sidebar-w); transition: margin-left 150ms ease; }

html.theme-changing body,
html.theme-changing .app-header,
html.theme-changing .relation-section,
html.theme-changing .summary-cards > div,
html.theme-changing .workspace-jump,
html.theme-changing .modal-box,
html.theme-changing input,
html.theme-changing select,
html.theme-changing textarea {
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

html[data-sidebar="collapsed"] .app-header { width: var(--sidebar-collapsed-w); padding-inline: 10px; }
html[data-sidebar="collapsed"] .page-main { margin-left: var(--sidebar-collapsed-w); }
html[data-sidebar="collapsed"] .sidebar-head { justify-content: center; }
html[data-sidebar="collapsed"] .logo-copy,
html[data-sidebar="collapsed"] .app-nav .nav-label,
html[data-sidebar="collapsed"] .app-nav .nav-section-label,
html[data-sidebar="collapsed"] .nav-more > summary::after,
html[data-sidebar="collapsed"] .header-create-task em,
html[data-sidebar="collapsed"] .header-tools,
html[data-sidebar="collapsed"] .theme-toggle em,
html[data-sidebar="collapsed"] .user-name,
html[data-sidebar="collapsed"] .logout-form { display: none; }
html[data-sidebar="collapsed"] .logo { justify-content: center; gap: 0; }
html[data-sidebar="collapsed"] .app-nav a,
html[data-sidebar="collapsed"] .nav-more > summary { justify-content: center; padding-inline: 7px; }
html[data-sidebar="collapsed"] .header-create-task { width: 42px; min-height: 42px; align-self: center; padding: 0; border-radius: 12px; font-size: 18px; }
html[data-sidebar="collapsed"] .header-user { flex-direction: column; align-items: center; justify-content: center; padding-inline: 0; }
html[data-sidebar="collapsed"] .header-user .user-avatar { margin-left: 0; }
html[data-sidebar="collapsed"] .realtime-status { font-size: 0; }
html[data-sidebar="collapsed"] .theme-toggle { width: 34px; padding-inline: 0; }
html[data-sidebar="collapsed"] .nav-more-menu { min-width: 180px; }
html[data-sidebar="collapsed"] .nav-more-menu .nav-label { display: inline; }
html[data-sidebar="collapsed"] .nav-more-menu a { justify-content: flex-start; }

.nav-section-label {
  display: block;
  margin: 12px 9px 4px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.nav-people-icon circle,
.nav-people-icon path { vector-effect: non-scaling-stroke; }

.auto-link {
  color: var(--accent-dark);
  /* 欧文フォントは同じ指定でも日本語より大きく見えるため、少し落として本文と釣り合わせる */
  font-size: .92em;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent);
  text-underline-offset: 2px;
  overflow-wrap: anywhere;
}

/* メモ欄の表示/編集トグル（.memo-toggle）: 表示中はURLがそのままリンクとして機能する */
.memo-toggle { position: relative; }
.memo-view {
  height: 230px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--ink);
  line-height: 1.8;
  white-space: normal;
  overflow-y: auto;
  overflow-wrap: anywhere;
  cursor: text;
}
.memo-view:hover { border-color: var(--line); background: var(--bg-sub); }
.memo-view:focus-visible {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
  box-shadow: 0 0 0 3px rgba(88, 101, 216, .1);
}
.memo-view.is-empty .relation-empty { margin: 0; color: var(--muted); }
.memo-edit { height: 230px; resize: vertical; }
.td-memo-toggle .memo-view,
.td-memo-toggle .memo-edit { height: 140px; }

.link-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 5px;
}

.link-preview:empty { display: none; }
.link-preview a {
  display: inline-flex;
  min-width: 0;
  max-width: 220px;
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--accent-dark);
  background: var(--bg-sub);
  font-size: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- ライト／ダークテーマ ---- */
html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #edf0f7;
  --muted: #9aa3b2;
  --accent: #7c86ee;
  --accent-dark: #a5adff;
  --accent-tint: #282c4d;
  --bg: #17191e;
  --canvas: #0f1115;
  --bg-sub: #1d2026;
  --line: #2b3039;
  --line-strong: #3a414d;
  --red-tint: #3a2024;
  --orange-tint: #3d2b1d;
  --green-tint: #173323;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .25), 0 6px 20px rgba(0, 0, 0, .16);
  --shadow-lg: 0 28px 80px rgba(0, 0, 0, .55);
}
html[data-theme="dark"] .app-header { background: rgba(21, 23, 28, .95); }
html[data-theme="dark"] .logo-copy b { color: var(--ink); }
html[data-theme="dark"] .quick-add-input,
html[data-theme="dark"] .global-search-input,
html[data-theme="dark"] .task-create-field input,
html[data-theme="dark"] .task-create-field select { color: var(--ink); background: #1e2128; }
html[data-theme="dark"] .modal-overlay { background: rgba(3, 5, 8, .72); }
html[data-theme="dark"] .modal-box { border-color: #303640; }
html[data-theme="dark"] .task-create-header { background: linear-gradient(135deg, #1c1f2b 0%, #222641 100%); }
html[data-theme="dark"] .task-create-composer { border-color: #343a4b; }
html[data-theme="dark"] .task-create-header .td-close:hover { background: rgba(255, 255, 255, .06); }
html[data-theme="dark"] .task-priority-control {
  color: color-mix(in srgb, var(--priority-color) 54%, #f4f6fb) !important;
  background: color-mix(in srgb, var(--priority-color) 18%, var(--bg)) !important;
}
html[data-theme="dark"] .login-page { background: var(--canvas); }
html[data-theme="dark"] .login-box,
html[data-theme="dark"] .task-table,
html[data-theme="dark"] .qa-chips { background: var(--bg); }

@media (max-width: 768px) {
  .page-transition,
  html[data-sidebar="collapsed"] .page-transition { inset: 0; }
  .app-header {
    position: sticky;
    inset: auto;
    width: auto;
    min-height: var(--header-h);
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    overflow-y: visible;
    padding: 8px 12px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .sidebar-head { flex: 1 1 auto; }
  .nav-toggle span { transform: rotate(-90deg); }
  .header-create-task { width: auto; order: 2; }
  .app-nav { display: none; order: 10; width: 100%; }
  body.nav-open .app-nav { display: grid; }
  body.nav-open .nav-more-menu { position: static; margin-left: 28px; box-shadow: none; }
  .header-tools { order: 5; display: flex; width: 100%; }
  .quick-add-wrap { flex: 1 1 220px; }
  .global-search-input { width: 140px; }
  .header-user { order: 6; width: 100%; margin-top: 0; padding-top: 8px; }
  .header-user .user-avatar { margin-left: auto; }
  .logout-form { width: auto; }
  .page-main,
  html[data-sidebar="collapsed"] .page-main { margin-left: 0; }
  html[data-sidebar="collapsed"] .app-header { width: auto; padding-inline: 12px; }
  html[data-sidebar="collapsed"] .sidebar-head { justify-content: space-between; flex-wrap: nowrap; }
  html[data-sidebar="collapsed"] .logo { justify-content: flex-start; }
  html[data-sidebar="collapsed"] .nav-toggle { width: 31px; }
  html[data-sidebar="collapsed"] .app-nav a,
  html[data-sidebar="collapsed"] .nav-more > summary { justify-content: flex-start; padding-inline: 9px; }
  html[data-sidebar="collapsed"] .header-create-task { width: auto; min-height: 39px; align-self: auto; padding: 7px 16px; border-radius: 9px; font-size: 13px; }
  html[data-sidebar="collapsed"] .header-user { justify-content: flex-start; padding-inline: 3px; }
  html[data-sidebar="collapsed"] .header-user .user-avatar { margin-left: auto; }
  html[data-sidebar="collapsed"] .realtime-status { font-size: 10px; }
  html[data-sidebar="collapsed"] .theme-toggle { width: auto; padding-inline: 8px; }
  html[data-sidebar="collapsed"] .user-name { display: inline; }
  html[data-sidebar="collapsed"] .logout-form { display: inline; }
  html[data-sidebar="collapsed"] .header-tools { display: flex; }
  html[data-sidebar="collapsed"] .theme-toggle em,
  html[data-sidebar="collapsed"] .header-create-task em,
  html[data-sidebar="collapsed"] .app-nav .nav-label,
  html[data-sidebar="collapsed"] .app-nav .nav-section-label,
  html[data-sidebar="collapsed"] .logo-copy { display: initial; }
}