:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --ink: #1c2333;
  --muted: #6b7280;
  --accent: #43296b;
  --gold: #c9a227;
  --you: #43296b;
  --avg: #b8bdc9;
  --line: #e5e8f0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  padding-bottom: 84px; /* 固定サマリーバーの高さ分 */
}

.sticky-summary {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  background: rgba(27, 35, 51, .96); color: #fff;
  box-shadow: 0 -4px 20px rgba(0,0,0,.25);
  padding: 10px 20px; text-align: center;
  backdrop-filter: blur(4px);
}
.ss-main { display: flex; align-items: baseline; justify-content: center; gap: 12px; flex-wrap: wrap; }
.ss-label { font-size: .82rem; opacity: .85; }
.ss-value { font-size: 1.9rem; font-weight: 700; color: #ffe9a8; line-height: 1.1; }
.ss-value .ss-unit { font-size: .9rem; margin-left: 2px; }
.ss-delta { font-size: .95rem; font-weight: 700; min-width: 6em; text-align: left; }
.ss-delta.up { color: #ff8a80; }
.ss-delta.down { color: #8ee6a8; }
.ss-sub { font-size: .76rem; opacity: .85; margin-top: 2px; }

@media (max-width: 720px) {
  .ss-value { font-size: 1.5rem; }
  body { padding-bottom: 96px; }
}
header {
  background: linear-gradient(135deg, #43296b, #6b4aa0);
  color: #fff;
  padding: 26px 20px 30px;
  text-align: center;
}
header .badge {
  display: inline-block; margin: 0 auto 12px; padding: 5px 14px;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px; font-size: .82rem; font-weight: 600; color: #ffe9a8;
}
header h1 { margin: 0 0 6px; }
header .h1-kw { display: block; font-size: .9rem; font-weight: 600; letter-spacing: .02em; opacity: .82; margin-bottom: 4px; }
header .h1-hook { display: block; font-size: 1.8rem; font-weight: 700; }
header .sub { margin: 0 auto; max-width: 560px; opacity: .95; font-size: .96rem; }
/* 意味のかたまり単位で改行（語の途中で割れない） */
header .sub span { display: inline-block; white-space: nowrap; }
header .hero-src { margin: 8px auto 0; max-width: 560px; font-size: .76rem; opacity: .8; }
header strong { color: var(--gold); }

/* ヒーロー：「2,000万円は誰の数字？」条件バンドルの対比（色で優劣を付けない） */
.hero-q { margin: 20px 0 12px; font-size: 1.12rem; font-weight: 700; }
.hero-q b { color: #ffe9a8; }
.hero-compare {
  display: flex; align-items: stretch; justify-content: center; gap: 0;
  max-width: 640px; margin: 20px auto 0;
  background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.28);
  border-radius: 16px; overflow: hidden;
}
.hc-item {
  flex: 1; padding: 16px 12px; display: flex; flex-direction: column;
  gap: 4px; justify-content: center;
}
.hc-cap { font-size: .74rem; opacity: .85; }
.hc-num { font-size: 2rem; font-weight: 800; color: #fff; line-height: 1.02; }
.hc-num small { font-size: .8rem; font-weight: 600; margin-left: 2px; opacity: .9; }
.hc-sub { font-size: .76rem; opacity: .8; }
.hc-vs {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; padding: 10px 14px; background: rgba(0,0,0,.16);
}
.hc-anchor { font-size: .68rem; opacity: .8; }
.hc-2000 { font-size: 1.15rem; font-weight: 800; color: #ffe9a8; line-height: 1.05; white-space: nowrap; }
.hc-2000 small { font-size: .7rem; margin-left: 1px; }
.hc-mult { margin-top: 4px; font-size: .72rem; opacity: .9; white-space: nowrap; }
.hero-note { margin: 12px auto 0; max-width: 620px; font-size: .78rem; line-height: 1.6; opacity: .88; }
.hero-note b { color: #ffe9a8; }
@media (max-width: 560px) {
  .hero-compare { flex-direction: column; }
  .hc-vs { flex-direction: row; gap: 10px; }
  /* スマホで見出し・バッジが見切れないよう縮小＆折り返し可 */
  header .h1-hook { font-size: 1.35rem; }
  header .h1-kw { font-size: .8rem; }
  header .badge { font-size: .72rem; white-space: normal; line-height: 1.4; }
}

/* 差別化ストリップ */
.diff-strip {
  max-width: 900px; margin: 20px auto 0; padding: 0 16px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
}
.diff-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 16px 16px 14px; text-align: center;
}
.diff-ic { font-size: 1.6rem; display: block; margin-bottom: 4px; }
.diff-card b { display: block; color: var(--accent); font-size: .95rem; margin-bottom: 4px; }
.diff-card small { color: var(--muted); font-size: .78rem; line-height: 1.5; }
@media (max-width: 720px) { .diff-strip { grid-template-columns: 1fr; } }

main {
  max-width: 900px;
  margin: 18px auto;
  padding: 0 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}
.panel h2 { margin: 0 0 14px; font-size: 1.1rem; color: var(--accent); }

.inputs label {
  display: block;
  font-size: .9rem;
  color: var(--muted);
  margin-bottom: 16px;
}
.inputs select, .inputs input[type="range"] {
  width: 100%;
  margin-top: 6px;
}
.inputs select {
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 1rem;
}
.inputs small { display: block; color: var(--muted); font-size: .76rem; margin-top: 4px; }
.reserve-note { line-height: 1.5; background: #faf7ef; border: 1px dashed var(--gold); border-radius: 8px; padding: 8px 10px; }
#coupleWrap { border: 1px solid var(--line); border-radius: 10px; padding: 12px 12px 2px; margin-bottom: 16px; background: #fafafd; }
#coupleWrap label { margin-bottom: 12px; }
.pension-sum { margin: 4px 0 6px; font-size: .92rem; color: var(--ink); }
.pension-sum b { color: var(--accent); font-size: 1.02rem; }
#yearsInfo { color: var(--accent); font-weight: 600; }
.subgroup {
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px 2px;
  margin: 0 0 16px; background: #fafafd;
}
.subgroup legend { font-size: .8rem; color: var(--accent); font-weight: 600; padding: 0 6px; }
.radio-row { display: flex; gap: 14px; margin-top: 6px; }
.radio { display: inline-flex; align-items: center; gap: 4px; color: var(--ink); }

/* 入力のグループ化 */
.field-group {
  border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 14px 0; margin-bottom: 14px; background: #fcfcfe;
}
.fg-title {
  display: block; font-size: .78rem; font-weight: 700; color: var(--accent);
  letter-spacing: .04em; margin-bottom: 10px;
}
.field-group.optional { padding-bottom: 4px; }
.field-group.optional > summary {
  cursor: pointer; font-size: .82rem; font-weight: 700; color: var(--accent);
  list-style: none; padding: 2px 0 10px;
}
.field-group.optional > summary::-webkit-details-marker { display: none; }
.field-group.optional > summary::before { content: "＋ "; }
.field-group.optional[open] > summary::before { content: "− "; }

.bignum { font-size: 3rem; font-weight: 700; color: var(--accent); line-height: 1.1; }
.bignum .unit { font-size: 1.2rem; margin-left: 4px; }
.perperson { color: var(--ink); font-size: .92rem; font-weight: 600; margin: 2px 0; }
.rank { color: var(--gold); font-weight: 600; margin: 4px 0 10px; }
.single-note {
  font-size: .82rem; line-height: 1.6; color: #444; margin: 0 0 12px;
  background: #fdf3f3; border-left: 4px solid #c0392b; border-radius: 6px; padding: 8px 10px;
}
.single-note b { color: #c0392b; }
.style-note {
  font-size: .82rem; line-height: 1.6; color: #444; margin: 0 0 10px;
  background: #faf7ef; border-left: 4px solid var(--gold); border-radius: 6px; padding: 8px 10px;
}
#tenureNote b { color: #7a4fbf; }

.gauge { margin: 10px 0; }
.gauge-row { display: flex; align-items: center; gap: 8px; margin: 8px 0; }
.glabel { width: 120px; font-size: .8rem; color: var(--muted); flex-shrink: 0; }
.bar { flex: 1; background: #eef0f6; border-radius: 6px; height: 22px; overflow: hidden; }
.fill { height: 100%; border-radius: 6px; transition: width .3s ease; }
.fill.you { background: var(--you); }
.fill.avg { background: var(--avg); }
.gval { width: 82px; text-align: right; font-size: .82rem; font-variant-numeric: tabular-nums; }

.diff { font-weight: 600; margin: 10px 0 16px; }
.diff.over { color: #c0392b; }
.diff.under { color: #1e8449; }

.breakdown { width: 100%; border-collapse: collapse; font-size: .88rem; }
.breakdown td { padding: 7px 4px; border-bottom: 1px solid var(--line); }
.breakdown td:last-child { text-align: right; font-variant-numeric: tabular-nums; }

.scenarios { max-width: 900px; margin: 0 auto 18px; }
.scenarios h2 { margin: 0 0 6px; font-size: 1.1rem; color: var(--accent); }
.scenario-tag {
  font-size: .7rem; background: var(--accent); color: #fff;
  padding: 2px 8px; border-radius: 10px; vertical-align: middle; font-weight: 600;
}
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 6px; }
.scenario-card {
  border: 1px solid var(--line); border-radius: 12px; padding: 14px; text-align: center;
  background: #fbfbfd;
}
.scenario-card.main { border: 2px solid var(--accent); background: #f7f4fd; }
.sc-name { font-weight: 700; color: var(--accent); font-size: .95rem; }
.sc-need { font-size: 1.8rem; font-weight: 700; color: var(--ink); margin: 4px 0; }
.sc-need .sc-unit { font-size: .85rem; margin-left: 2px; }
.sc-desc { font-size: .76rem; color: var(--muted); line-height: 1.5; min-height: 3em; }
.sc-detail { font-size: .72rem; color: var(--gold); margin-top: 6px; font-weight: 600; }
.scenario-range {
  margin: 14px 0 0; padding: 10px 12px; font-size: .9rem;
  background: #faf7ef; border: 1px dashed var(--gold); border-radius: 8px;
}
.scenario-range b { color: #c0392b; }
@media (max-width: 720px) { .scenario-grid { grid-template-columns: 1fr; } }

.editor { max-width: 900px; margin: 0 auto 18px; }
.editor-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.editor-head h2 { margin: 0; }
.editor-head button {
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  padding: 7px 14px; font-size: .82rem; cursor: pointer;
}
.editor-head button:hover { background: #56399c; }
.pref-comment {
  margin: 6px 0 10px; padding: 10px 12px; font-size: .9rem; line-height: 1.6;
  background: #f2effa; border-left: 4px solid var(--accent); border-radius: 6px;
}
.pref-comment b { color: var(--accent); }
.editor-note { color: var(--muted); font-size: .82rem; margin: 8px 0 14px; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.cat-item { display: flex; flex-direction: column; font-size: .82rem; color: var(--muted); }
.cat-item input {
  margin-top: 4px; padding: 8px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 1rem; text-align: right; font-variant-numeric: tabular-nums;
}
.cat-item em { font-style: normal; font-size: .72rem; color: var(--muted); text-align: right; margin-top: 2px; }
.cat-hint { color: var(--muted); }
.cat-total {
  margin-top: 16px; text-align: right; font-weight: 700; font-size: 1.05rem; color: var(--accent);
}
@media (max-width: 720px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }

/* 比較チャート */
.compare { max-width: 900px; margin: 0 auto 18px; }
.compare-lead {
  margin: 0 0 14px; padding: 10px 12px; font-size: .92rem; line-height: 1.6;
  background: #f2effa; border-left: 4px solid var(--accent); border-radius: 6px;
}
.compare-lead b { color: var(--accent); }
.cmp-chart { display: flex; flex-direction: column; gap: 10px; }
.cmp-row { display: flex; align-items: center; gap: 10px; }
.cmp-name { width: 210px; flex-shrink: 0; font-size: .84rem; color: var(--muted); }
.cmp-name b { color: var(--ink); font-weight: 700; }
.cmp-track { flex: 1; background: #eef0f6; border-radius: 6px; height: 26px; overflow: hidden; }
.cmp-fill { height: 100%; border-radius: 6px; transition: width .35s ease; background: var(--avg); }
.cmp-val { width: 74px; text-align: right; font-size: .9rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.cmp-val small { font-size: .72rem; font-weight: 600; margin-left: 1px; }
.cmp-row.me .cmp-fill { background: var(--accent); }
.cmp-row.me .cmp-name b { color: var(--accent); }
/* 最高/最低は優劣を示唆しない中立グレー（あなた=紫、全国=金だけ強調） */
.cmp-row.high .cmp-fill { background: #9aa2b1; }
.cmp-row.low .cmp-fill { background: #9aa2b1; }
.cmp-row.nat .cmp-fill { background: var(--gold); opacity: .55; }
.cmp-row.nat .cmp-name b { color: var(--gold); }
@media (max-width: 560px) {
  .cmp-name { width: 130px; font-size: .76rem; }
  .cmp-val { width: 58px; font-size: .8rem; }
}

/* 感度（何が効いているか★） */
.sens { margin-top: 22px; border-top: 1px solid var(--line); padding-top: 16px; }
.sens-title { margin: 0 0 12px; font-size: .98rem; color: var(--accent); }
.sens-list { display: flex; flex-direction: column; gap: 8px; }
.sens-row { display: flex; align-items: center; gap: 10px; }
.sens-name { flex: 1; font-size: .86rem; color: var(--ink); }
.sens-stars { font-size: 1.05rem; letter-spacing: 2px; color: #d8dbe4; white-space: nowrap; }
.sens-stars .on { color: var(--gold); }
.sens-amt { width: 96px; text-align: right; font-size: .84rem; font-weight: 700; color: var(--muted); font-variant-numeric: tabular-nums; }
.sens-note { margin: 12px 0 0; font-size: .76rem; color: var(--muted); }
@media (max-width: 560px) { .sens-amt { width: 78px; font-size: .78rem; } }

/* 解釈・前提・注意（最下部集約） */
.readme { max-width: 900px; margin: 0 auto 18px; }
.readme details {
  border: 1px solid var(--line); border-radius: 10px; margin-bottom: 10px;
  background: #fcfcfe; padding: 0 14px;
}
.readme summary {
  cursor: pointer; font-weight: 700; color: var(--accent); font-size: .92rem;
  padding: 12px 0; list-style: none;
}
.readme summary::-webkit-details-marker { display: none; }
.readme summary::before { content: "▸ "; color: var(--gold); }
.readme details[open] summary::before { content: "▾ "; }
.readme details[open] summary { border-bottom: 1px solid var(--line); }
.readme ul { margin: 10px 0 14px; padding-left: 20px; color: #333; font-size: .86rem; }
.readme li { margin: 6px 0; line-height: 1.6; }
.readme code { background: #f2f0f8; padding: 1px 6px; border-radius: 5px; font-size: .82rem; }
.readme .src { color: var(--muted); font-size: .82rem; line-height: 1.6; margin: 10px 0 14px; }
.readme .faq { margin: 10px 0 14px; }
.readme .faq dt { font-weight: 700; color: var(--accent); font-size: .86rem; margin-top: 12px; }
.readme .faq dt:first-child { margin-top: 0; }
.readme .faq dd { margin: 4px 0 0; padding-left: 0; color: #333; font-size: .86rem; line-height: 1.6; }
.readme .srclist { color: #333; }
.readme .srclist a { color: var(--accent); }
.readme .datalist { list-style: none; padding-left: 0; }
.readme .datalist li { padding-left: 16px; position: relative; }
.readme .datalist li::before { content: "•"; color: var(--gold); position: absolute; left: 2px; }
.readme .upd-h { font-weight: 700; color: var(--accent); font-size: .86rem; margin: 12px 0 2px; }
.notice-strip {
  max-width: 900px; margin: -6px auto 16px; padding: 10px 14px;
  background: #f6faf6; border: 1px solid #d9e7d9; border-radius: 10px;
  color: #35503a; font-size: .82rem; line-height: 1.6; text-align: center;
}

/* 結果シェア */
.share {
  max-width: 900px; margin: 0 auto 18px; text-align: center;
  background: linear-gradient(135deg, #f7f4fd, #fdfbf3);
  border-color: #e3ddf3;
}
.share-lead {
  margin: 0 auto 10px; max-width: 620px; padding: 10px 14px;
  font-size: .96rem; line-height: 1.6;
  background: #f2effa; border-left: 4px solid var(--accent); border-radius: 6px; text-align: left;
}
.share-lead b { color: var(--accent); }
.share-desc { color: var(--muted); font-size: .82rem; margin: 0 0 16px; }
.share-btns { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.sh-btn {
  border: none; border-radius: 10px; padding: 11px 18px; font-size: .9rem;
  font-weight: 700; color: #fff; cursor: pointer;
  box-shadow: 0 2px 8px rgba(67, 41, 107, .12);
  transition: transform .12s ease, opacity .2s ease;
}
.sh-btn:hover { opacity: .92; transform: translateY(-1px); }
.sh-btn:active { transform: translateY(0); }
.sh-btn.x { background: #111827; }
.sh-btn.line { background: #06c755; }
.sh-btn.fb { background: #1877f2; }
.sh-btn.copy { background: var(--accent); }
.sh-btn.copy:hover { background: #56399c; opacity: 1; }
.share-msg { color: #1e8449; font-weight: 700; font-size: .86rem; margin: 12px 0 0; }
@media (max-width: 560px) { .sh-btn { flex: 1 1 40%; } }

footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 20px; }
footer em { color: var(--accent); font-style: normal; font-weight: 600; }

@media (max-width: 720px) {
  main { grid-template-columns: 1fr; }
}