:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c2026;
  --muted: #69707a;
  --border: #dfe2e7;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --ok: #1d7f4e;
  --warn: #9a6200;
  --warn-bg: #fff3d6;
  --danger: #c0352b;
  --danger-bg: #fde4e1;
  --chip-bg: #eef0f3;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171b;
    --surface: #1c2026;
    --text: #e6e8eb;
    --muted: #9aa1ab;
    --border: #2e333b;
    --accent: #5b8ff5;
    --ok: #4cc38a;
    --warn: #f0b44c;
    --warn-bg: #3a2e14;
    --danger: #f07167;
    --danger-bg: #3d1d1b;
    --chip-bg: #262b33;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { margin: 0 auto 0 0; font-size: 16px; }

main { max-width: 1100px; margin: 0 auto; padding: 16px; display: grid; gap: 12px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 12px; }
.stats div { display: grid; }
.stats .label { color: var(--muted); font-size: 12px; }
.stats .value { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }

.row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.muted { color: var(--muted); margin: 0; font-size: 12px; }

button, input, select {
  font: inherit;
  color: inherit;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  padding: 6px 12px;
}
button { cursor: pointer; }
button:hover { border-color: var(--accent); }
button:disabled { opacity: .5; cursor: wait; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.link { border: none; background: none; color: var(--danger); padding: 2px 4px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); }
.tabs button { border: none; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 8px 12px; color: var(--muted); }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

.inline-form { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 8px; margin-bottom: 12px; }
.inline-form label { display: grid; gap: 2px; font-size: 12px; color: var(--muted); }
/* テキスト入力とセレクトの高さ・幅をそろえる（セレクトはブラウザ既定だと低くなる） */
input:not([type="checkbox"]), select { height: 34px; }
.inline-form input, .inline-form select, dialog .fields input:not([type="checkbox"]), dialog .fields select { width: 160px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; color: var(--muted); font-weight: 500; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
td.wrap { white-space: normal; max-width: 280px; }
tbody tr:last-child td { border-bottom: none; }
.empty { color: var(--muted); text-align: center; padding: 24px; }

.badge { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.danger { background: var(--danger-bg); color: var(--danger); }

.chip { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 999px; background: var(--chip-bg); }
.chip.ok { color: var(--ok); }
.chip.warn { color: var(--warn); }
.chip.danger { color: var(--danger); }

th.num { text-align: right; }

.form-group { display: grid; gap: 4px; margin-bottom: 4px; }

/* 同盟の見出し行。配下のプレイヤー行を開閉する */
tr.group td { background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px; }
tr.group .group-head { display: flex; align-items: center; gap: 8px; }
tr.group .toggle { border: none; background: none; padding: 0 4px; font-weight: 600; font-size: 14px; }
tr.group .count { color: var(--muted); font-size: 12px; }
tr.group .group-actions { margin-left: auto; display: flex; gap: 4px; }
tr.group .group-actions button { padding: 2px 8px; font-size: 12px; }
tr.member td:first-child { padding-left: 24px; }
button.danger { color: var(--danger); border-color: var(--danger); background: none; }

dialog {
  width: min(720px, calc(100% - 32px));
  max-height: calc(100% - 32px);
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
}
dialog::backdrop { background: rgb(0 0 0 / .4); }
dialog h2 { margin: 0 0 4px; font-size: 16px; }
dialog h3 { margin: 16px 0 4px; font-size: 13px; }
dialog form > p { margin: 8px 0; }
dialog .fields { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; margin: 12px 0 0; }
dialog .fields label { display: grid; gap: 2px; font-size: 12px; color: var(--muted); }
dialog label.check { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text); padding-bottom: 6px; }
dialog .history { max-height: 240px; overflow-y: auto; border: 1px solid var(--border); border-radius: 6px; }
dialog .history th { position: sticky; top: 0; background: var(--surface); }
.dialog-actions { display: flex; gap: 8px; margin-top: 16px; }
.spacer { flex: 1; }

textarea {
  width: 100%;
  font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: inherit;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  resize: vertical;
}

.toast {
  position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%);
  max-width: calc(100% - 32px);
  background: var(--text); color: var(--bg);
  padding: 8px 16px; border-radius: 6px; font-size: 13px;
}
.toast.error { background: var(--danger); color: #fff; }

@media (max-width: 600px) {
  .inline-form input, .inline-form select { width: 100%; }
  .inline-form label { flex: 1 1 100%; }
}

.form-error { margin: 12px 0 0; padding: 8px 12px; border-radius: 6px; background: var(--danger-bg); color: var(--danger); font-size: 13px; }
td.muted-cell { color: var(--muted); }

/* ログイン画面 */
body.login-page { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.login-card { width: min(400px, 100%); display: grid; gap: 12px; }
.login-card h1 { margin: 0; font-size: 18px; }
.login-card form { display: grid; gap: 12px; }
.login-card label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
.login-card input { width: 100%; }
button.wide { width: 100%; padding: 10px 12px; }
main > .form-error { margin: 0; }
.login-card section { display: grid; gap: 12px; }
.login-card section > p { margin: 0; }

/* display を指定した要素でも hidden 属性を優先する */
[hidden] { display: none !important; }