/* タスク管理ツール（モバイル優先） */
:root {
  --green: #2f6f5e;
  --green-dark: #245548;
  --bg: #f4f6f5;
  --card: #ffffff;
  --text: #22302c;
  --muted: #7a8a85;
  --border: #dde5e2;
  --danger: #c0564f;
  --warn: #b8860b;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

.app { max-width: 640px; margin: 0 auto; padding: 0 12px 60px; }

/* ヘッダー */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 2px;
}
.topbar h1 { font-size: 1.15rem; margin: 0; color: var(--green-dark); }
.topbar-right { display: flex; gap: 6px; align-items: center; }

/* 入力まわり */
.add-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.input-row { display: flex; gap: 8px; }
.input-row input[type="text"], .input-row input[type="password"] {
  flex: 1; min-width: 0;
}
input, select, button, textarea {
  font-size: 16px; /* iOSのズーム防止 */
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 10px 12px;
  background: #fff;
  color: var(--text);
  font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--green); outline-offset: -1px; }
#memoInput { width: 100%; margin-top: 8px; resize: vertical; display: block; }

button { cursor: pointer; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button.primary {
  background: var(--green); color: #fff; border-color: var(--green);
  font-weight: 700;
}
button.primary:active { background: var(--green-dark); }
button.ghost { background: transparent; border-color: transparent; }

/* マイクボタン */
button.mic {
  width: 46px; flex: none;
  font-size: 20px; line-height: 1;
  background: #fff;
}
button.mic.recording {
  background: var(--danger); border-color: var(--danger);
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(192, 86, 79, .45); }
  50% { box-shadow: 0 0 0 8px rgba(192, 86, 79, 0); }
}
.mic-status { margin: 8px 2px 0; font-size: .82rem; color: var(--danger); }

.option-row { display: flex; gap: 8px; margin-top: 10px; }
.option-row select { flex: 1; min-width: 0; }
.option-row input[type="date"] { flex: 1; min-width: 0; }
.option-row button { flex: none; padding: 10px 20px; }

/* フィルタ */
.filters { display: flex; gap: 6px; margin: 14px 0 10px; overflow-x: auto; }
.filter-btn {
  flex: none; padding: 10px 16px; border-radius: 999px;
  background: #fff; font-size: .88rem;
}
.filter-btn.active { background: var(--green); color: #fff; border-color: var(--green); font-weight: 700; }

/* タスク一覧 */
.task-list { display: flex; flex-direction: column; gap: 8px; }
.task {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px;
}
.task.done { opacity: .55; }
.task.done .task-title { text-decoration: line-through; }
.task-check {
  flex: none; width: 30px; height: 30px; margin-top: 1px;
  border-radius: 50%; border: 2px solid var(--border);
  background: #fff; font-size: 15px; line-height: 1; padding: 0;
  position: relative;
}
.task-check::after { content: ''; position: absolute; inset: -8px; } /* タップ判定の拡張 */
.task.done .task-check { background: var(--green); border-color: var(--green); color: #fff; }
.task-body { flex: 1; min-width: 0; }
.task-title { font-weight: 600; word-break: break-word; cursor: pointer; }
.task-memo {
  margin-top: 3px; font-size: .85rem; color: var(--muted);
  white-space: pre-wrap; word-break: break-word; cursor: pointer;
}
.memo-add-toggle {
  border: 1px solid var(--border); background: #fff;
  padding: 7px 12px; border-radius: 999px; margin: 2px 0;
  color: var(--green-dark); font-size: .8rem; font-weight: 600;
}
.memo-add-toggle:active { background: #e7efec; }
/* ＋サブタスク／＋概要 のタップ判定を44px相当に拡張 */
.sub-add-toggle, .memo-add-toggle { position: relative; }
.sub-add-toggle::after, .memo-add-toggle::after {
  content: ''; position: absolute; inset: -6px -4px;
}

/* 優先度バッジ */
.pri {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  font-weight: 700; font-size: .74rem;
}
.pri-high { background: #f7e3e1; color: var(--danger); }
.pri-mid { background: #f5edd8; color: var(--warn); }
.pri-low { background: #e9edec; color: var(--muted); }

/* タスク編集モーダル */
.edit-label {
  display: block; margin: 12px 0 4px;
  font-size: .76rem; font-weight: 700; color: var(--muted);
}
.edit-label:first-of-type { margin-top: 4px; }
#editModal input[type="text"], #editModal input[type="date"],
#editModal select, #editModal textarea { width: 100%; }
#editModal .input-row input, .edit-memo-row textarea { flex: 1; min-width: 0; width: auto; }
.edit-2col { display: flex; gap: 10px; }
.edit-2col > div { flex: 1; min-width: 0; }
.edit-memo-row { display: flex; gap: 8px; align-items: flex-start; }
.edit-memo-row textarea { resize: vertical; }
#editError { margin: 10px 0 0; font-size: .85rem; }

/* AIタスク分解モーダル */
#aiText { width: 100%; resize: vertical; }
.ai-hint { margin: 0 0 10px; font-size: .82rem; color: var(--muted); }
.ai-actions { margin-top: 10px; }
.ai-actions .primary { flex: 1; }
#aiProposals {
  display: flex; flex-direction: column; gap: 8px;
  max-height: 45dvh; overflow-y: auto;
}
.ai-proposal {
  display: flex; gap: 10px; align-items: flex-start;
  border: 1px solid var(--border); border-radius: 10px; padding: 10px;
  cursor: pointer;
}
.ai-proposal:has(input:not(:checked)) { opacity: .45; }
.ai-proposal input { width: 18px; height: 18px; margin-top: 2px; flex: none; }
.ai-proposal-body { flex: 1; min-width: 0; }
.ai-proposal-title { font-weight: 600; font-size: .95rem; word-break: break-word; }
.ai-proposal-memo { margin-top: 3px; font-size: .8rem; color: var(--muted); word-break: break-word; }
.task-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; font-size: .78rem; color: var(--muted); }
.task-meta .overdue { color: var(--danger); font-weight: 700; }
.task-meta .due-soon { color: var(--warn); font-weight: 700; }
.badge {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  background: #e7efec; color: var(--green-dark);
}
.task-del {
  flex: none; border: none; background: none; color: var(--muted);
  font-size: 17px; padding: 8px; margin: -6px -6px 0 0;
  position: relative;
}
.task-del::after { content: ''; position: absolute; top: -6px; right: -6px; bottom: -6px; left: -2px; }
.task-del:active { color: var(--danger); }

/* サブタスク（進捗バー＋展開パネル） */
.sub-progress {
  display: flex; align-items: center; gap: 8px;
  margin-top: 4px; padding: 8px 0; min-height: 40px;
  cursor: pointer; user-select: none; touch-action: manipulation;
}
.sub-toggle {
  color: var(--muted); font-size: 1rem; width: 24px;
  text-align: center; flex: none;
}
.bar {
  flex: 1; height: 8px; border-radius: 999px;
  background: #e7efec; overflow: hidden;
}
.bar-fill {
  height: 100%; border-radius: 999px;
  background: var(--green); opacity: .55;
  transition: width .25s ease;
}
.bar-fill.full { opacity: 1; }
.sub-count { font-size: .78rem; font-weight: 700; color: var(--muted); flex: none; }
.subtasks {
  margin-top: 2px; padding-top: 4px;
  border-top: 1px dashed var(--border);
  display: flex; flex-direction: column; gap: 2px;
}
.subtask { display: flex; align-items: center; gap: 10px; min-height: 44px; }
.sub-check {
  flex: none; width: 26px; height: 26px;
  border-radius: 50%; border: 2px solid var(--border);
  background: #fff; font-size: 13px; line-height: 1; padding: 0;
  position: relative;
}
.sub-check::after { content: ''; position: absolute; inset: -9px; } /* タップ判定の拡張 */
.subtask.done .sub-check { background: var(--green); border-color: var(--green); color: #fff; }
.subtask.done .sub-title { text-decoration: line-through; color: var(--muted); }
.sub-title { flex: 1; min-width: 0; font-size: .95rem; word-break: break-word; }
.sub-del {
  flex: none; border: none; background: none; color: var(--muted);
  font-size: 16px; padding: 12px 8px;
}
.sub-del:active { color: var(--danger); }
.sub-add-row { display: flex; gap: 8px; margin-top: 4px; }
.sub-add-row input, .sub-add-row button { min-height: 44px; }
.sub-input { flex: 1; min-width: 0; padding: 9px 12px; }
.sub-mic { flex: none; width: 48px; padding: 9px 0; font-size: 17px; line-height: 1; }
.sub-add { flex: none; padding: 9px 18px; }
.sub-add-toggle {
  border: 1px solid var(--border); background: #fff;
  padding: 7px 12px; border-radius: 999px; margin: 2px 0;
  color: var(--green-dark); font-size: .8rem; font-weight: 600;
}
.sub-add-toggle:active { background: #e7efec; }
/* 完了した親タスクでもサブタスク欄は操作できるよう、打ち消し線は親タイトルのみ */
.task.done .sub-title { text-decoration: line-through; }

.empty { text-align: center; color: var(--muted); margin-top: 40px; }

.footer { text-align: center; margin-top: 16px; font-size: .75rem; color: var(--muted); }
.version-info { font-size: .68rem; opacity: .8; }

/* ログイン */
.login {
  min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: 20px;
}
.login-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 28px; width: 100%; max-width: 360px; text-align: center;
  display: flex; flex-direction: column; gap: 12px;
}
.login-card h1 { margin: 0; font-size: 1.3rem; color: var(--green-dark); }
.login-card p { margin: 0; color: var(--muted); font-size: .9rem; }
.error { color: var(--danger) !important; font-weight: 700; }

/* モーダル */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.4);
  display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 100;
}
.modal {
  background: var(--card); border-radius: 16px; padding: 20px;
  width: 100%; max-width: 400px; max-height: 80dvh; overflow-y: auto;
}
.modal h2 { margin: 0 0 14px; font-size: 1.05rem; }
.member-list { list-style: none; padding: 0; margin: 14px 0 0; }
.member-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 4px; border-bottom: 1px solid var(--border);
}
.member-list button { border: none; background: none; color: var(--danger); font-size: .85rem; padding: 12px 10px; }
.close-btn { width: 100%; margin-top: 14px; color: var(--muted); }