:root {
  --bg: #eeede8;
  --panel: #fbfaf7;
  --ink: #111110;
  --muted: #6d6c66;
  --faint: #b9b7ae;
  --line: #d8d6cd;
  --track: #e6e4dc;
  --red: #d63a2a;
  --orange: #e9772a;
  --green: #2e8b57;
  --blue: #2c5fd6;
  --accent: var(--red);
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Noto Sans JP', system-ui, -apple-system, 'Hiragino Sans', sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  padding: 24px 24px 64px;
  max-width: 1440px;
  margin: 0 auto;
  overflow-x: hidden;
}
.mono { font-family: var(--mono); }
button { font: inherit; color: inherit; cursor: pointer; }
.empty { color: var(--muted); font-size: 13px; margin: 8px 0; }

/* ---------- header ---------- */
h1 { font-size: clamp(26px, 4vw, 44px); font-weight: 900; letter-spacing: -0.02em; margin: 0; line-height: 1.1; }
.sub { color: var(--muted); font-size: 11px; margin: 8px 0 0; }

.btn {
  border: 1.5px solid var(--ink); background: var(--panel); padding: 10px 18px; border-radius: 2px;
  font-weight: 700; font-size: 13px; transition: transform .1s, background .2s;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:disabled { opacity: .35; cursor: not-allowed; }
.btn.primary { background: var(--ink); color: var(--panel); min-width: 140px; }
.btn.ghost { border-color: var(--line); color: var(--muted); }
.btn.cut { border-color: var(--red); color: var(--red); }
.btn[hidden] { display: none; }

/* ---------- layout ---------- */
.layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 20px; }
.panel { background: var(--panel); border: 1px solid var(--line); padding: 14px 16px; min-width: 0; }
.panel-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  font-weight: 700; font-size: 13px; padding-bottom: 10px; border-bottom: 1px solid var(--line); margin-bottom: 12px;
}
.panel-head .mono { font-weight: 400; font-size: 11px; color: var(--muted); }

/* ---------- editor ---------- */
.editor { display: flex; flex-direction: column; }
textarea {
  flex: 1; width: 100%; min-height: 560px; resize: vertical; border: 1px solid var(--line); background: #fff;
  padding: 14px; font: 15px/1.9 var(--sans); color: var(--ink); outline: none; border-radius: 0;
}
textarea:focus { border-color: var(--ink); }
.counter { font-variant-numeric: tabular-nums; }
.counter.over { color: var(--red) !important; font-weight: 600; }
.editor-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.hint { color: var(--muted); font-size: 11px; line-height: 1.7; flex: 1; min-width: 240px; }
.actions { display: flex; gap: 8px; }

/* ---------- result ---------- */
.score-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.total label { display: block; font-size: 11px; color: var(--muted); letter-spacing: .08em; }
.total b { font-family: var(--mono); font-size: 56px; line-height: 1; font-weight: 600; font-variant-numeric: tabular-nums; }
.total small { font-family: var(--mono); color: var(--muted); margin-left: 4px; }
.rank {
  width: 64px; height: 64px; display: grid; place-items: center; font: 900 36px/1 var(--sans);
  border: 2px solid var(--ink); background: var(--ink); color: var(--panel);
}
.rank[data-rank="S"] { background: var(--red); border-color: var(--red); }
.rank[data-rank="A"] { background: var(--orange); border-color: var(--orange); }
.rank[data-rank="?"] { background: transparent; color: var(--faint); border-color: var(--line); }
.traits { display: flex; flex-wrap: wrap; gap: 6px; flex: 1; min-width: 200px; }
.trait { border: 1px solid var(--line); padding: 4px 8px; font-size: 12px; background: #fff; }
.trait small { color: var(--muted); font-family: var(--mono); font-size: 10px; margin-right: 6px; }
.trait i { font-style: normal; color: var(--muted); font-family: var(--mono); font-size: 10px; margin-left: 6px; }

.radar-wrap { position: relative; max-width: 520px; margin: 8px auto 0; }
#radar { width: 100%; height: auto; display: block; }
.status { text-align: center; color: var(--muted); font-size: 12px; margin: 4px 0 8px; min-height: 1.4em; }
.result[data-state="loading"] .status { color: var(--ink); }
.result[data-state="loading"] .status::before {
  content: ''; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--red);
  margin-right: 8px; animation: blink 1s infinite; vertical-align: 1px;
}
.result[data-state="loading"] #radar .area { animation: pulse 1.2s ease-in-out infinite; }
@keyframes blink { 50% { opacity: .2; } }
@keyframes pulse { 50% { opacity: .35; } }

#radar .ring { fill: none; stroke: var(--line); stroke-width: 1; }
#radar .ring.outer { stroke: var(--faint); }
#radar .spoke { stroke: var(--line); stroke-width: 1; }
#radar .area { fill: rgba(214, 58, 42, .16); stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
#radar .dot { fill: var(--accent); }
#radar .axis-label { font: 700 13px var(--sans); fill: var(--ink); }
#radar .axis-value { font: 600 11px var(--mono); fill: var(--accent); }
#radar .tick { font: 9px var(--mono); fill: var(--faint); }

/* 軸ごとのバー */
.axes { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 20px; margin-top: 8px; }
.axis { display: grid; grid-template-columns: 6.5em 1fr 2.4em; align-items: center; gap: 8px; font-size: 12px; }
.axis .name { font-weight: 700; }
.axis .bar { height: 8px; background: var(--track); position: relative; }
.axis .bar span { position: absolute; inset: 0 auto 0 0; background: var(--ink); transition: width .6s cubic-bezier(.2,.8,.2,1); }
.axis .bar span.top { background: var(--accent); }
.axis .val { font-family: var(--mono); text-align: right; font-variant-numeric: tabular-nums; }
.axis .lvl { grid-column: 2 / 4; margin-top: -4px; font-size: 11px; color: var(--muted); }

/* チェック項目 */
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 6px; margin-top: 16px; }
.check { display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); padding: 7px 10px; font-size: 12px; background: #fff; }
.check .mark { width: 18px; height: 18px; display: grid; place-items: center; font-weight: 900; font-size: 11px; color: #fff; flex: none; }
.check.good .mark { background: var(--green); }
.check.bad .mark { background: var(--red); }
.check.unsure .mark { background: var(--faint); }
.check .p { margin-left: auto; font-family: var(--mono); color: var(--muted); font-size: 11px; }

.result[data-state="empty"] .axes,
.result[data-state="empty"] .checks { display: none; }

/* ---------- history ---------- */
.history { margin-top: 16px; }
.history-list { list-style: none; margin: 0; padding: 0; }
.history-list li {
  display: grid; grid-template-columns: 2.4em 3em 1fr auto auto; align-items: center; gap: 12px;
  padding: 8px 6px; border-bottom: 1px solid var(--track); cursor: pointer;
}
.history-list li:hover { background: #fff; }
.history-list li.on { background: #fff; box-shadow: inset 3px 0 0 var(--accent); }
.history-list .h-rank { font-weight: 900; text-align: center; }
.history-list .h-score { font-family: var(--mono); font-weight: 600; }
.history-list .h-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-list .h-date { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.history-list .h-del { border: none; background: none; color: var(--faint); font-size: 16px; padding: 0 4px; }
.history-list .h-del:hover { color: var(--red); }

/* ---------- share ---------- */
.share { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 14px; padding: 10px 12px; background: #fff; border: 1px solid var(--line); }
.share-label { font-size: 12px; font-weight: 700; margin-right: 4px; }
.share-btn {
  display: inline-flex; align-items: center; gap: 5px; border: 1px solid var(--line); background: var(--panel);
  padding: 6px 10px; font-size: 12px; font-weight: 700; border-radius: 2px; transition: transform .1s, border-color .2s;
}
.share-btn:hover { transform: translateY(-1px); border-color: var(--ink); }
.share-btn svg { width: 13px; height: 13px; fill: currentColor; }
.share-btn.x { background: #000; color: #fff; border-color: #000; }
.share-btn.line { background: #06c755; color: #fff; border-color: #06c755; }
.share-btn.facebook { background: #1877f2; color: #fff; border-color: #1877f2; }
.share-btn.threads { background: #fff; color: #000; border-color: #000; }
.share-btn[hidden] { display: none; }
.share-note { flex-basis: 100%; margin: 2px 0 0; font-size: 11px; color: var(--muted); }
.result:not([data-state="done"]) .share { display: none; }

/* 共有ページ(/s/<id>) */
.share-page { max-width: 880px; }
.share-kicker { font-size: 12px; color: var(--muted); margin: 0; }
.share-image { display: block; width: 100%; height: auto; border: 1px solid var(--line); margin: 18px 0; }
.share-cta { display: inline-block; text-decoration: none; margin-top: 4px; }

/* ---------- footer ---------- */
.hint a, .doc a, .site-footer a { color: inherit; }
.site-footer {
  margin-top: 40px; padding-top: 20px; border-top: 1.5px solid var(--ink);
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px 40px; font-size: 12px; color: var(--muted);
}
.footer-name { margin: 0; font-size: 15px; font-weight: 900; color: var(--ink); }
.footer-name .mono { font-size: 11px; font-weight: 400; color: var(--muted); margin-left: 6px; }
.footer-lead { margin: 6px 0 8px; }
.site-footer address { font-style: normal; line-height: 1.8; }
.footer-links { display: flex; gap: 40px; }
.footer-links div { display: flex; flex-direction: column; gap: 6px; }
.footer-links a { text-decoration: none; color: var(--ink); }
.footer-links a:hover { text-decoration: underline; }
.footer-head { margin: 0 0 2px; font-size: 10px; letter-spacing: .1em; color: var(--faint); }
.footer-copy { grid-column: 1 / -1; margin: 8px 0 0; font-size: 10px; color: var(--faint); }

/* ---------- 規約ページ ---------- */
.doc { max-width: 760px; margin: 20px auto 0; padding: 28px 32px; line-height: 1.9; font-size: 14px; }
.doc .back { font-size: 12px; color: var(--muted); }
.doc h1 { font-size: clamp(24px, 3.4vw, 32px); margin: 12px 0 8px; }
.doc .lead { color: var(--muted); margin: 0 0 20px; }
.doc h2 { font-size: 15px; margin: 28px 0 6px; padding-top: 14px; border-top: 1px solid var(--line); }
.doc ol, .doc ul { padding-left: 1.4em; margin: 6px 0; }
.doc .date { margin-top: 32px; font-size: 12px; color: var(--muted); }

/* ---------- toasts ---------- */
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 10; }
.toast { background: var(--ink); color: var(--panel); padding: 10px 14px; font-size: 13px; max-width: 360px; animation: slidein .2s ease-out; }
.toast.error { background: var(--red); }
@keyframes slidein { from { transform: translateY(8px); opacity: 0; } }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  body { padding: 16px 16px 48px; }
  .site-footer { grid-template-columns: 1fr; }
  .doc { padding: 20px 16px; }
  .layout { grid-template-columns: 1fr; }
  textarea { min-height: 320px; }
}
@media (max-width: 520px) {
  .axes { grid-template-columns: 1fr; }
  .history-list li { grid-template-columns: 2em 2.6em 1fr auto; }
  .history-list .h-date { display: none; }
}