:root {
  color-scheme: light;
  --page: #f4f5f2;
  --surface: #fcfcfb;
  --surface-2: #f0f1ed;
  --ink: #16171a;
  --ink-2: #4f5157;
  --muted: #85878d;
  --line: #e1e0d9;
  --line-strong: #c9c8bf;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --accent-soft: #e3eefb;
  --good: #0ca30c;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --good-ink: #006300;
  --critical-ink: #b02a2a;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --stage: #0f1520;
  --stage-2: #18202d;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 4px 16px rgba(0,0,0,.05);
  --radius: 12px;
  --font: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-2: #232321;
    --ink: #f0efec;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --line: #2c2c2a;
    --line-strong: #3d3d3a;
    --accent: #3987e5;
    --accent-soft: #1c2b40;
    --good-ink: #2fbf2f;
    --critical-ink: #ff7b7b;
    --series-1: #3987e5;
    --series-2: #d95926;
    --shadow: 0 1px 2px rgba(0,0,0,.4);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321; --ink: #f0efec; --ink-2: #c3c2b7;
  --muted: #898781; --line: #2c2c2a; --line-strong: #3d3d3a; --accent: #3987e5; --accent-soft: #1c2b40;
  --good-ink: #2fbf2f; --critical-ink: #ff7b7b; --series-1: #3987e5; --series-2: #d95926; --shadow: 0 1px 2px rgba(0,0,0,.4);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}
button, input, select { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; line-height: 1.3; }
.muted { color: var(--muted); font-size: 12px; }

/* ---------- ヘッダー ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 12px 20px; background: var(--surface); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.logo { font-size: 28px; }
.brand h1 { font-size: 18px; letter-spacing: .02em; }
.brand p { margin: 0; color: var(--ink-2); font-size: 12px; }
.top-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.preset-pick { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-2); }
.preset-pick select { max-width: 240px; }

.btn {
  border: 1px solid var(--line-strong); background: var(--surface); border-radius: 8px;
  padding: 6px 12px; cursor: pointer; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.danger { color: var(--critical-ink); }
.btn:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

select, input[type="number"], input[type="text"] {
  border: 1px solid var(--line-strong); border-radius: 7px; background: var(--surface);
  padding: 5px 8px; min-height: 32px; width: 100%;
}
input[type="range"] { accent-color: var(--accent); width: 100%; }

/* ---------- レイアウト ---------- */
.layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 16px;
  padding: 16px 20px; align-items: start; max-width: 1680px; margin: 0 auto;
}
.stage { min-width: 0; display: flex; flex-direction: column; gap: 12px; }
.settings {
  position: sticky; top: 76px; max-height: calc(100vh - 92px); overflow: auto;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 4px 0 12px;
}

/* ---------- ツールバー ---------- */
.toolbar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 8px 12px; box-shadow: var(--shadow);
}
.seg { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; background: transparent; padding: 5px 12px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--line-strong); }
.seg button.on { background: var(--accent); color: var(--accent-ink); }
.timebox { display: flex; align-items: center; gap: 10px; flex: 1 1 320px; min-width: 240px; }
.timebox input { flex: 1; }
.time-label { white-space: nowrap; color: var(--ink-2); }
.time-label b { color: var(--ink); font-variant-numeric: tabular-nums; font-size: 16px; }
.tool-right { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.check { display: inline-flex; align-items: center; gap: 4px; cursor: pointer; white-space: nowrap; }

/* ---------- キャンバス ---------- */
.canvas-wrap {
  position: relative; background: var(--stage); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); border: 1px solid #1f2a3a;
}
#net { display: block; width: 100%; height: 520px; cursor: default; }
.tip {
  position: absolute; z-index: 5; pointer-events: none; max-width: 300px;
  background: rgba(10, 14, 22, .96); color: #eef2f7; border: 1px solid #2f3d52; border-radius: 10px;
  padding: 8px 10px; font-size: 12px; line-height: 1.5; box-shadow: 0 6px 24px rgba(0,0,0,.4);
}
.tip b { color: #fff; }
.tip .row { display: flex; justify-content: space-between; gap: 12px; }
.tip .k { color: #9fb0c6; }
.legend {
  display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center;
  padding: 8px 14px; background: var(--stage-2); color: #c8d2df; font-size: 12px; border-top: 1px solid #243042;
}
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend .sep { width: 1px; height: 14px; background: #33415a; }
.sw { width: 18px; height: 5px; border-radius: 3px; display: inline-block; }
.st-good { background: var(--good); } .st-warning { background: var(--warning); }
.st-serious { background: var(--serious); } .st-critical { background: var(--critical); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.dn { background: #7cc4ff; } .dot.up { background: #b9a8ff; }
.dash { width: 18px; height: 0; border-top: 2px dashed #9fb0c6; display: inline-block; }

/* ---------- 結果カード ---------- */
.results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow); min-width: 0;
}
.card.wide { grid-column: 1 / -1; }
.card-h { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.card h2 { font-size: 15px; }

.verdict .big { display: flex; align-items: center; gap: 12px; }
.verdict .badge {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  font-size: 22px; color: #fff; flex: none; font-weight: 700;
}
.verdict .title { font-size: 20px; font-weight: 700; }
.verdict p { margin: 8px 0 0; color: var(--ink-2); }
.verdict .where { margin-top: 10px; padding: 10px 12px; border-radius: 10px; background: var(--surface-2); }
.verdict .where b { color: var(--critical-ink); }
.kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 12px; }
.kpi { background: var(--surface-2); border-radius: 10px; padding: 8px 10px; }
.kpi .k { font-size: 11px; color: var(--muted); }
.kpi .v { font-size: 17px; font-weight: 700; }
.kpi .s { font-size: 11px; color: var(--ink-2); }
.warns { margin: 10px 0 0; padding-left: 18px; color: var(--critical-ink); font-size: 12px; }

.sug { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.sug li { border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; }
.sug .t { font-weight: 600; display: flex; gap: 6px; align-items: baseline; }
.sug .n { color: var(--accent); font-weight: 700; }
.sug .e { font-size: 12px; color: var(--good-ink); margin-top: 3px; }
.sug .c { font-size: 11px; color: var(--muted); margin-top: 2px; }
.chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px;
  font-size: 12px; white-space: nowrap; border: 1px solid var(--line-strong);
}
.chip i { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

.dev-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.dev-table th { text-align: left; font-weight: 600; color: var(--muted); font-size: 11px; padding: 4px 6px; border-bottom: 1px solid var(--line); }
.dev-table td { padding: 7px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.dev-table tr { cursor: pointer; }
.dev-table tr:hover td { background: var(--surface-2); }
.dev-table .num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.dev-name { display: flex; align-items: center; gap: 6px; min-width: 0; }
.dev-name .ic { font-size: 18px; }
.dev-name small { color: var(--muted); display: block; font-size: 11px; }
.bar { height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; margin-top: 3px; min-width: 70px; }
.bar > i { display: block; height: 100%; border-radius: 3px; }
.table-scroll { overflow-x: auto; }

.chart-box { position: relative; }
.chart-box canvas { display: block; width: 100%; height: 190px; }
.chart-legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--ink-2); margin-bottom: 4px; }
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.chart-legend i { width: 14px; height: 3px; border-radius: 2px; display: inline-block; }
.chart-legend i.dashed { height: 0; border-top: 2px dashed var(--muted); }
.ctip {
  position: absolute; pointer-events: none; background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: 8px; padding: 6px 8px; font-size: 12px; box-shadow: var(--shadow); white-space: nowrap; z-index: 3;
}

/* ---------- 設定パネル ---------- */
.sec { border-bottom: 1px solid var(--line); }
.sec > summary {
  list-style: none; cursor: pointer; padding: 12px 16px; font-weight: 700; font-size: 14px;
  display: flex; align-items: center; gap: 8px;
}
.sec > summary::-webkit-details-marker { display: none; }
.sec > summary::after { content: '▾'; margin-left: auto; color: var(--muted); transition: transform .15s; }
.sec:not([open]) > summary::after { transform: rotate(-90deg); }
.sec-body { padding: 0 16px 14px; display: flex; flex-direction: column; gap: 10px; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field > label, .field > .lab { font-size: 12px; color: var(--ink-2); display: flex; align-items: center; gap: 4px; }
.field .hint { font-size: 11px; color: var(--muted); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.row3 { display: grid; grid-template-columns: 2fr 1fr; gap: 8px; }
.q {
  display: inline-grid; place-items: center; width: 16px; height: 16px; border-radius: 50%;
  background: var(--surface-2); color: var(--ink-2); font-size: 10px; cursor: help; border: 1px solid var(--line-strong);
}
.range-row { display: flex; align-items: center; gap: 10px; }
.range-row output { min-width: 52px; text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.info { font-size: 12px; background: var(--accent-soft); border-radius: 8px; padding: 7px 10px; color: var(--ink); }

.item { border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
.item.flash { animation: flash 1.2s ease-out; }
@keyframes flash { 0% { box-shadow: 0 0 0 3px var(--accent); } 100% { box-shadow: 0 0 0 0 transparent; } }
.item > summary {
  list-style: none; cursor: pointer; padding: 8px 10px; display: flex; align-items: center; gap: 8px;
}
.item > summary::-webkit-details-marker { display: none; }
.item .ic { font-size: 18px; width: 22px; text-align: center; }
.item .nm { font-weight: 600; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .sm { font-size: 11px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .txt { min-width: 0; flex: 1; }
.item .stdot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.item-body { padding: 4px 10px 12px; display: flex; flex-direction: column; gap: 10px; border-top: 1px dashed var(--line); }
.item-actions { display: flex; gap: 6px; justify-content: flex-end; }
.list { display: flex; flex-direction: column; gap: 8px; }
.add-row { display: flex; gap: 6px; flex-wrap: wrap; }
.add-row select { flex: 1; min-width: 120px; }

/* ---------- フッター・モーダル ---------- */
.foot { max-width: 1680px; margin: 0 auto; padding: 4px 20px 28px; color: var(--muted); font-size: 12px; }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 50; display: grid; place-items: center; padding: 16px; }
.modal[hidden] { display: none; }
.modal-box {
  background: var(--surface); border-radius: 14px; max-width: 760px; width: 100%; max-height: 88vh;
  overflow: auto; padding: 22px 24px; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.modal-x { position: absolute; top: 10px; right: 12px; border: 0; background: none; font-size: 24px; cursor: pointer; color: var(--muted); }
.help-body h3 { font-size: 15px; margin: 18px 0 6px; }
.help-body p, .help-body li { color: var(--ink-2); }
.help-body table { border-collapse: collapse; width: 100%; font-size: 13px; margin: 6px 0; }
.help-body th, .help-body td { border: 1px solid var(--line); padding: 5px 8px; text-align: left; }
.help-body th { background: var(--surface-2); }
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: #1c2230; color: #fff;
  padding: 10px 16px; border-radius: 10px; z-index: 60; box-shadow: 0 8px 24px rgba(0,0,0,.3); max-width: calc(100% - 32px);
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 1100px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .settings { position: static; max-height: none; }
}
@media (max-width: 760px) {
  .results { grid-template-columns: minmax(0, 1fr); }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .topbar { padding: 10px 16px; position: static; }
  .layout { padding: 12px 16px; gap: 12px; }
  .foot { padding: 4px 16px 24px; }
  .brand h1 { font-size: 16px; }
  .top-actions { width: 100%; }
  .preset-pick { flex: 1 1 100%; }
  .preset-pick select { max-width: none; }
  .tool-right { margin-left: 0; }
  .dev-table .hide-sm { display: none; }
}

/* ---------- 追加: タイムライン・保存・ガイド ---------- */
.btn:disabled { opacity: .4; cursor: default; }
.chart-box canvas.short { height: 150px; }
#timeline { height: 300px; }
.chart-legend .lv-keys { gap: 4px; }
.chart-legend .lv-keys i { width: 10px; height: 10px; border-radius: 2px; margin-left: 6px; }
.tl-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 8px 20px; margin-top: 10px; font-size: 13px; }
.tl-summary ul { margin: 4px 0 0; padding-left: 18px; color: var(--ink-2); }
.tl-h { font-weight: 600; }
.dev-table tr.idle td { opacity: .6; }
.check.block { display: flex; font-size: 13px; }
.sched { border-left: 3px solid var(--accent-soft); padding-left: 10px; display: flex; flex-direction: column; gap: 8px; }
.measure { display: flex; flex-direction: column; gap: 8px; }

.modal-box.narrow { max-width: 520px; }
.save-row { display: flex; gap: 8px; margin: 12px 0; }
.save-row input { flex: 1; }
.save-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.save-list li { display: flex; align-items: center; gap: 6px; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; flex-wrap: wrap; }
.save-list .txt { flex: 1 1 160px; min-width: 0; }
.save-list .nm { font-weight: 600; }
.save-list .sm { font-size: 11px; color: var(--muted); }

.tour { position: fixed; inset: 0; z-index: 70; }
.tour[hidden] { display: none; }
.tour-hole {
  position: fixed; border-radius: 12px; box-shadow: 0 0 0 9999px rgba(8, 12, 20, .62);
  transition: all .25s ease; pointer-events: none; outline: 2px solid #fff;
}
.tour-box {
  position: fixed; background: var(--surface); color: var(--ink); border-radius: 14px; padding: 14px 16px;
  box-shadow: 0 16px 48px rgba(0,0,0,.35); transition: top .25s ease, left .25s ease;
}
.tour-box h3 { font-size: 16px; margin: 2px 0 6px; }
.tour-box p { margin: 0 0 12px; color: var(--ink-2); }
.tour-step { font-size: 11px; color: var(--muted); }
.tour-actions { display: flex; gap: 6px; justify-content: flex-end; }
@media (prefers-reduced-motion: reduce) { .tour-hole, .tour-box { transition: none; } }

.band-row { display: flex; gap: 14px; flex-wrap: wrap; }
.timebox select.speed { width: auto; min-height: 28px; padding: 2px 6px; }
.hint.warn { color: var(--critical-ink); }
.lang-pick { display: inline-flex; align-items: center; gap: 4px; }
.lang-pick select { width: auto; max-width: 160px; }