:root {
  --nasu: #7c4fbd;
  --nasu-dark: #4e2d85;
  --nasu-soft: #efe7fa;
  --nasu-chip: #e9e0f8;
  --heta: #4f9a55;
  --bg: #f6f4f9;
  --card: #ffffff;
  --text: #2a2630;
  --muted: #7a7385;
  --line: #e4e0ea;
  --sun: #d6404a;
  --sat: #3f68cc;
  --danger: #c93a48;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(40, 20, 70, .06), 0 4px 16px rgba(40, 20, 70, .05);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6;
}
h2 { font-size: 18px; margin: 0 0 12px; }
h3 { font-size: 15px; margin: 18px 0 8px; color: var(--nasu-dark); }
hr { border: 0; border-top: 1px dashed var(--line); margin: 20px 0 4px; }
code { background: var(--nasu-soft); padding: 1px 6px; border-radius: 4px; }
[hidden] { display: none !important; }

/* ---------- 共通部品 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--text); font: inherit; font-weight: 600; cursor: pointer;
  text-decoration: none; white-space: nowrap; transition: background .15s, border-color .15s;
}
.btn:hover { border-color: var(--nasu); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--nasu); border-color: var(--nasu); color: #fff; }
.btn-primary:hover { background: var(--nasu-dark); border-color: var(--nasu-dark); }
.btn-ghost { background: transparent; color: var(--nasu-dark); border-color: #d6c9ec; }
.btn-ghost-dark { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-danger { color: var(--danger); border-color: #f0c7cc; background: #fff; }
.btn-danger:hover { border-color: var(--danger); }
.btn-small { padding: 5px 12px; font-size: 13px; }
.btn-lg { padding: 12px 26px; font-size: 16px; }
.btn-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.icon-btn {
  width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line); background: #fff;
  font-size: 18px; cursor: pointer; color: var(--text);
}
.icon-btn:hover { border-color: var(--nasu); }

input[type=text], input[type=date], input[type=time], input[type=month], select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px;
  font: inherit; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #cdb6ef; border-color: var(--nasu); }
.label { display: block; font-size: 13px; font-weight: 700; margin: 10px 0 4px; }
.hint { font-size: 12.5px; color: var(--muted); margin: 6px 0; }
.muted { color: var(--muted); font-size: 13.5px; margin: 0; }
.empty { color: var(--muted); }
.error-msg { color: var(--danger); font-weight: 600; }

/* ---------- ヘッダー */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 20px; background: #221a2e; color: #fff; position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: .04em; }
.brand img { border-radius: 8px; }
.user { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.user img { border-radius: 50%; }

/* ---------- レイアウト */
.wrap { max-width: 1100px; margin: 0 auto; padding: 20px 16px 60px; }
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px; margin-bottom: 16px; }
.panel-head, .row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.panel-head h2 { margin: 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.invitable { margin-top: 12px; font-size: 13.5px; }
.invitable a { margin: 4px 6px 0 0; }

/* ---------- タブ */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin: 4px 0 16px; overflow-x: auto; }
.tabs button {
  background: none; border: 0; padding: 10px 16px; font: inherit; font-weight: 700; color: var(--muted);
  border-bottom: 3px solid transparent; cursor: pointer; white-space: nowrap;
}
.tabs button.active { color: var(--nasu-dark); border-bottom-color: var(--nasu); }

/* ---------- 月ナビ */
.month-nav { display: flex; align-items: center; gap: 8px; }
.month-nav input { width: 170px; }

/* ---------- カレンダー */
.cal-wrap { background: #fbfafd; border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 16px 0; }
.cal-title { font-size: 26px; font-weight: 800; margin-bottom: 10px; }
.cal-title small { font-size: 14px; font-weight: 500; color: var(--muted); margin-left: 12px; }
.cal-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
.cal-head { background: #f1edf6; text-align: center; font-weight: 700; padding: 4px 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 13px; }
.cal-head.sun { color: var(--sun); } .cal-head.sat { color: var(--sat); }
.cal-cell {
  min-height: 92px; padding: 4px 5px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: #fff; cursor: pointer; overflow: hidden;
}
.cal-cell:hover { background: #f7f2fd; }
.cal-cell.out { background: #f8f7fa; cursor: default; }
.cal-cell.today { background: #f4ecff; }
.cal-num { font-weight: 700; font-size: 13px; }
.cal-cell.sun .cal-num, .cal-cell.hol .cal-num { color: var(--sun); }
.cal-cell.sat .cal-num { color: var(--sat); }
.chip {
  display: block; font-size: 11.5px; line-height: 1.5; margin-top: 3px; padding: 0 5px;
  background: var(--nasu-chip); color: #523480; border-left: 3px solid var(--nasu); border-radius: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.chip-more { font-size: 11.5px; color: var(--nasu); font-weight: 700; margin-top: 2px; }

/* ---------- 追加フォーム */
.add-form { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-top: 14px; }
.add-form .field { min-width: 130px; }
.add-form .field.grow { flex: 1 1 200px; }
.add-form .btn { margin-bottom: 1px; }

/* ---------- インポート */
.import { margin: 14px 0; border: 1px solid var(--line); border-radius: 12px; background: #fbfafd; }
.import summary { padding: 12px 16px; font-weight: 700; cursor: pointer; }
.import-body { padding: 0 16px 14px; }
.export-row { margin-top: 12px; }
.csv-preview { max-height: 220px; overflow: auto; font-size: 13px; margin-top: 8px; }
.csv-preview li { padding: 2px 0; }
.csv-errors { color: var(--danger); font-size: 13px; }

/* ---------- 一覧 */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
.ev-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.ev-table th { text-align: left; font-size: 12.5px; color: var(--muted); background: #faf9fc; padding: 10px; border-bottom: 1px solid var(--line); }
.ev-table td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.ev-table tr:last-child td { border-bottom: 0; }
.ev-table td.nowrap { white-space: nowrap; }
.ev-table td.desc { color: var(--muted); max-width: 260px; }
.ev-table .actions { display: flex; gap: 6px; justify-content: flex-end; }
.ev-empty { text-align: center; color: var(--muted); padding: 22px !important; }
.tag {
  display: inline-block; font-size: 12px; padding: 1px 9px; border-radius: 999px; margin: 2px 3px 2px 0;
  background: #f1eff4; color: var(--muted); border: 1px solid var(--line); white-space: nowrap;
}
.tag.ch { background: #e8f6ec; color: #2f7a43; border-color: #c9e8d2; }
.tag.time { background: #fff3e3; color: #a3600e; border-color: #f6dcb6; }
.tag.men { background: #f3ecfd; color: var(--nasu-dark); border-color: #ddcdf5; }
.tag.off { background: #fdeef0; color: var(--danger); border-color: #f4c9cf; }

/* ---------- 設定 */
.radio-row { display: flex; gap: 18px; flex-wrap: wrap; margin: 6px 0; }
.radio-row label, .check-inline { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
.check-inline { margin: 10px 0 4px; font-weight: 600; }
.check-list {
  max-height: 180px; overflow-y: auto; border: 1px solid var(--line); border-radius: 10px; padding: 6px 10px; background: #fff;
}
.check-list label { display: flex; align-items: center; gap: 8px; padding: 3px 0; cursor: pointer; font-size: 14px; }
.role-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; background: #b9b3c2; }
.user-picker .chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.user-chip { display: inline-flex; align-items: center; gap: 4px; background: var(--nasu-soft); border-radius: 999px; padding: 2px 4px 2px 10px; font-size: 13px; }
.user-chip button { border: 0; background: none; cursor: pointer; color: var(--muted); font-size: 14px; }
#settings-form .btn-primary { margin-top: 20px; }

/* ---------- 権限・ログ */
.perm-list, .log-list { list-style: none; padding: 0; margin: 16px 0 0; }
.perm-list li, .log-list li { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 4px; border-bottom: 1px solid var(--line); }
.log-list li { justify-content: flex-start; font-size: 14px; }
.log-at { color: var(--muted); font-size: 12.5px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.log-user { font-weight: 700; white-space: nowrap; }

/* ---------- ダイアログ */
dialog { border: 0; border-radius: 16px; padding: 22px 24px; width: min(640px, calc(100vw - 24px)); box-shadow: 0 20px 60px rgba(30,10,60,.25); }
dialog::backdrop { background: rgba(30, 20, 45, .45); }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

/* ---------- トースト */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 50;
  background: #2a2234; color: #fff; padding: 10px 18px; border-radius: 999px; font-size: 14px; box-shadow: var(--shadow);
}
.toast.error { background: var(--danger); }

/* ---------- ログイン画面 */
.login-page { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(160deg, #f3ecfd, #f8f5fb 50%, #eef6ef); padding: 16px; }
.login-card { background: #fff; border-radius: 22px; box-shadow: var(--shadow); padding: 36px 32px; max-width: 440px; width: 100%; text-align: center; }
.login-icon { border-radius: 22px; }
.login-card h1 { margin: 12px 0 0; font-size: 30px; letter-spacing: .06em; color: var(--nasu-dark); }
.lead { color: var(--muted); margin: 4px 0 18px; }
.feature-list { text-align: left; list-style: none; padding: 14px 18px; margin: 0 0 20px; background: #faf8fd; border-radius: 12px; font-size: 14px; }
.feature-list li { padding: 3px 0; }
.login-actions { display: flex; flex-direction: column; gap: 10px; }

/* ---------- スマホ */
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
  .cal-cell { min-height: 64px; }
  .chip { font-size: 10px; padding: 0 3px; }
  .cal-title { font-size: 20px; }
  /* 一覧はカード表示に切り替え */
  .ev-table thead { display: none; }
  .ev-table tr { display: block; padding: 10px 12px; border-bottom: 1px solid var(--line); }
  .ev-table tr:last-child { border-bottom: 0; }
  .ev-table td { display: inline; padding: 0; border: 0; }
  .ev-table td:nth-child(1), .ev-table td:nth-child(2) { color: var(--muted); font-size: 13px; margin-right: 6px; }
  .ev-table td:nth-child(3) { display: block; font-weight: 700; margin: 2px 0 4px; }
  .ev-table td.desc { display: block; max-width: none; font-size: 13px; margin-bottom: 4px; }
  .ev-table td.desc:empty { display: none; }
  .ev-table td:nth-child(5) { display: block; }
  .ev-table td:nth-child(6) { display: block; margin-top: 8px; }
  .ev-table .actions { justify-content: flex-start; }
  .ev-empty { display: block !important; }
  .topbar { padding: 8px 12px; }
  #user-name { display: none; }
}