/* クラベカ デザインシステム v1
   コンセプト: 「数字が主役のクリーンな計算屋」（STRATEGY §10）
   - 全色はトークン経由（ライト/ダーク両対応）。図解・スライド画像もこのパレットから取る
*/
:root {
  color-scheme: light dark;

  /* パレット（正本） */
  --c-primary: #0f766e;
  --c-primary-strong: #115e59;
  --c-primary-soft: #99f6e4;
  --c-primary-pale: #f0fdfa;
  --c-ink: #1c2b33;
  --c-ink-soft: #5b6b75;
  --c-bg: #fafbfb;
  --c-surface: #ffffff;
  --c-border: #e3e9ec;
  --c-money: #b45309;
  --c-money-pale: #fffbeb;
  --c-alert: #b91c1c;
  --c-link: #0e7490;
  --c-hero-grad-a: #f0fdfa;
  --c-hero-grad-b: #fafbfb;
  --c-chip-bg: #eef6f5;

  --font-body: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "BIZ UDGothic", "Yu Gothic UI", "Meiryo", sans-serif;
  --lh-base: 1.9;
  --radius: 14px;
  --radius-s: 8px;
  --maxw: 960px;
  --shadow: 0 1px 2px rgba(20, 35, 42, .05), 0 4px 16px rgba(20, 35, 42, .06);
  --shadow-hover: 0 2px 4px rgba(20, 35, 42, .07), 0 10px 28px rgba(20, 35, 42, .10);
}
@media (prefers-color-scheme: dark) {
  :root {
    --c-primary: #2dd4bf;
    --c-primary-strong: #5eead4;
    --c-primary-soft: #134e4a;
    --c-primary-pale: #11302d;
    --c-ink: #e6edf0;
    --c-ink-soft: #9fb0b8;
    --c-bg: #0e1517;
    --c-surface: #182225;
    --c-border: #2a373c;
    --c-money: #fbbf24;
    --c-money-pale: #2a2310;
    --c-alert: #f87171;
    --c-link: #67e8f9;
    --c-hero-grad-a: #122225;
    --c-hero-grad-b: #0e1517;
    --c-chip-bg: #1d2b2e;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .35);
    --shadow-hover: 0 2px 4px rgba(0, 0, 0, .5), 0 10px 28px rgba(0, 0, 0, .45);
  }
}

/* ---------- ベース ---------- */
* { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  line-height: var(--lh-base);
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  overflow-wrap: anywhere;  /* 長い英語URL等でも320pxではみ出さない */
}
a { color: var(--c-link); text-decoration-thickness: 1px; text-underline-offset: 3px; }
img, svg { max-width: 100%; height: auto; }
:focus-visible { outline: 3px solid var(--c-primary); outline-offset: 2px; border-radius: 2px; }
.num { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--c-money); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--c-primary); color: #fff; padding: 8px 16px; border-radius: 0 0 8px 0; z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- ヘッダー ---------- */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--c-surface) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-border);
}
header.site .inner {
  max-width: var(--maxw); margin: 0 auto; padding: 10px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 10px 18px; flex-wrap: wrap;
}
.logo { display: inline-flex; align-items: center; gap: 8px; font-size: 1.25rem; font-weight: 800; color: var(--c-primary); text-decoration: none; letter-spacing: .03em; }
.logo svg { width: 26px; height: 26px; flex: none; }
nav.global { display: flex; gap: 2px 16px; font-size: .85rem; overflow-x: auto; max-width: 100%; scrollbar-width: none; }
nav.global::-webkit-scrollbar { display: none; }
nav.global a { color: var(--c-ink-soft); text-decoration: none; white-space: nowrap; padding: 4px 2px; font-weight: 600; }
nav.global a:hover { color: var(--c-primary); }

main { max-width: var(--maxw); margin: 0 auto; padding: 8px 20px 64px; }

/* ---------- タイポグラフィ ---------- */
h1 { font-size: clamp(1.45rem, 1.1rem + 1.8vw, 1.9rem); line-height: 1.45; margin: .8em 0 .5em; letter-spacing: .01em; }
h2 { font-size: clamp(1.15rem, 1rem + .8vw, 1.35rem); line-height: 1.5; border-left: 4px solid var(--c-primary); padding-left: .6em; margin: 2.4em 0 .8em; }
h3 { font-size: 1.05rem; margin: 1.6em 0 .5em; }
p { margin: .8em 0; }

/* ---------- ヒーロー（トップ） ---------- */
.hero {
  margin: 12px -20px 0;
  padding: clamp(36px, 7vw, 72px) 20px clamp(32px, 6vw, 64px);
  background: linear-gradient(170deg, var(--c-hero-grad-a), var(--c-hero-grad-b) 75%);
}
.hero .inner { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 28px; align-items: center; }
.hero h1 { font-size: clamp(1.7rem, 1.2rem + 2.8vw, 2.7rem); line-height: 1.4; margin: 0 0 .4em; font-weight: 800; }
.hero h1 .accent { color: var(--c-primary); }
.hero .lead { font-size: clamp(.95rem, .9rem + .3vw, 1.05rem); color: var(--c-ink-soft); margin: 0 0 1.4em; max-width: 36em; }
.hero-visual { display: none; }
@media (min-width: 820px) {
  .hero .inner { grid-template-columns: 7fr 4fr; }
  .hero-visual { display: block; }
}
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 700; text-decoration: none; font-size: .95rem;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary { background: var(--c-primary); color: var(--c-bg); box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--c-primary-strong); transform: translateY(-1px); box-shadow: var(--shadow-hover); }
@media (prefers-color-scheme: dark) { .btn-primary { color: #06231f; } }
.btn-ghost { border: 1.5px solid var(--c-border); color: var(--c-ink); background: var(--c-surface); }
.btn-ghost:hover { border-color: var(--c-primary); color: var(--c-primary); }
.badge-soon {
  font-size: .68rem; font-weight: 700; color: var(--c-money);
  background: var(--c-money-pale); border-radius: 999px; padding: 2px 9px; vertical-align: middle;
}

/* ---------- セクション・カードUI ---------- */
.section { margin-top: clamp(40px, 7vw, 64px); }
.section > .section-title { font-size: clamp(1.2rem, 1.05rem + .9vw, 1.5rem); border: none; padding: 0; margin: 0 0 .3em; font-weight: 800; }
.section > .section-sub { color: var(--c-ink-soft); font-size: .92rem; margin: 0 0 1.4em; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(250px, 100%), 1fr)); }

.cardbox {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px 22px; margin: 0;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.cardbox h3 { margin: 0 0 .35em; font-size: 1.02rem; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; }
.cardbox h3 a { color: var(--c-ink); text-decoration: none; }
.cardbox p { margin: 0; font-size: .88rem; color: var(--c-ink-soft); display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; }
a.cardlink { text-decoration: none; color: inherit; display: block; border-radius: var(--radius); }
a.cardlink:hover .cardbox { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: var(--c-primary); }
a.cardlink:hover h3 { color: var(--c-primary); }
.cardbox .arrow { color: var(--c-primary); font-weight: 700; font-size: .85rem; }

.feature { display: flex; flex-direction: column; gap: 10px; }
.feature .icon {
  width: 44px; height: 44px; border-radius: 12px; flex: none;
  display: grid; place-items: center;
  background: var(--c-primary-pale); color: var(--c-primary);
}
.feature .icon svg { width: 24px; height: 24px; }

/* ---------- AISEO結論ブロック ---------- */
.summary {
  background: var(--c-primary-pale);
  border: 1px solid color-mix(in srgb, var(--c-primary) 25%, var(--c-bg));
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 20px 0;
}
.summary .label { font-size: .76rem; font-weight: 800; color: var(--c-primary-strong); letter-spacing: .08em; }
.summary ul { margin: .5em 0 0; padding-left: 1.3em; }
.summary li { margin: .25em 0; }

/* ---------- テーブル ---------- */
.tablewrap { overflow-x: auto; border-radius: var(--radius-s); border: 1px solid var(--c-border); }
table.data { border-collapse: collapse; width: 100%; font-size: .92rem; background: var(--c-surface); }
table.data th, table.data td { border-bottom: 1px solid var(--c-border); padding: 10px 14px; text-align: left; vertical-align: top; }
table.data tr:last-child th, table.data tr:last-child td { border-bottom: none; }
table.data th { background: var(--c-primary-pale); color: var(--c-primary-strong); font-weight: 700; white-space: nowrap; }

/* ---------- 出典・注記・PR ---------- */
.source { font-size: .76rem; color: var(--c-ink-soft); margin-top: .3em; }
.source a { color: inherit; }
.checked { white-space: nowrap; }
.cond { font-size: .82rem; color: var(--c-ink-soft); }
.warn { color: var(--c-alert); }
.pr-label { color: var(--c-ink-soft); font-size: .75rem; margin: -.2em 0 1.2em; }

/* ---------- 記事リスト・バッジ ---------- */
.badge {
  display: inline-block; font-size: .68rem; font-weight: 800; letter-spacing: .04em;
  border-radius: 6px; padding: 2px 8px; flex: none; vertical-align: middle;
}
.badge-new { background: var(--c-money-pale); color: var(--c-money); }
.badge-guide { background: var(--c-primary-pale); color: var(--c-primary-strong); }
.badge-pin { background: var(--c-primary); color: var(--c-bg); }
.meta-row { display: flex; align-items: center; gap: 10px; margin: 0 0 .6em; }

ul.article-list { list-style: none; margin: .6em 0; padding: 0; }
.article-row {
  display: flex; align-items: baseline; gap: 10px;
  padding: 11px 2px; border-bottom: 1px solid var(--c-border);
}
.article-row:first-child { border-top: 1px solid var(--c-border); }
.article-row a { color: var(--c-ink); text-decoration: none; font-weight: 600; flex: 1; min-width: 0; }
.article-row a:hover { color: var(--c-primary); }
.article-row .badge { transform: translateY(-1px); }

.sample-banner {
  background: var(--c-money-pale); color: var(--c-money); border: 1px dashed var(--c-money);
  border-radius: var(--radius-s); padding: 8px 14px; font-size: .8rem; font-weight: 700; margin: 10px 0;
}

/* ---------- 申込導線（CTAカード） ---------- */
.cta-card {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 20px;
  background: var(--c-surface); border: 1.5px solid var(--c-primary);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px 22px; margin: 18px 0 6px;
}
.cta-card .cta-name { font-size: 1.05rem; font-weight: 800; }
.cta-card .cta-facts { font-size: .85rem; color: var(--c-ink-soft); margin-top: 2px; }
/* コンバージョンボタン: サイト内で唯一の暖色ボタン＝視認で迷わせない（誇大文言・偽緊急性は使わない） */
.btn-cv {
  background: linear-gradient(180deg, #d97706, #b45309);
  color: #fff; font-size: 1rem; padding: 15px 30px; box-shadow: var(--shadow);
}
.btn-cv:hover { filter: brightness(1.07); transform: translateY(-1px); box-shadow: var(--shadow-hover); }
@media (max-width: 599px) {
  .cta-card { justify-content: center; }
  .cta-card > div { width: 100%; }
  .cta-card .btn-cv { width: 100%; justify-content: center; }
}

/* ---------- ツール（診断・シミュレーター） ---------- */
.tool-app { margin: 20px 0; }
.tool-cta { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 10px; }
/* 診断 */
.shindan-progress { height: 8px; background: var(--c-border); border-radius: 4px; overflow: hidden; }
.shindan-bar { height: 100%; background: var(--c-primary); border-radius: 4px; transition: width .25s ease; }
.shindan-q { border: none; padding: 0; margin: .6em 0 .8em; font-size: 1.25rem; }
.shindan-opts { display: grid; gap: 10px; }
.shindan-opt {
  text-align: left; font: inherit; font-weight: 600; color: var(--c-ink);
  background: var(--c-surface); border: 1.5px solid var(--c-border); border-radius: var(--radius-s);
  padding: 14px 18px; cursor: pointer; transition: border-color .12s ease, background .12s ease;
}
.shindan-opt:hover { border-color: var(--c-primary); background: var(--c-primary-pale); }
.shindan-result {
  background: var(--c-surface); border: 2px solid var(--rc, var(--c-primary));
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px 24px 18px; text-align: center;
}
.shindan-emoji { font-size: 2.6rem; margin: 0; }
.shindan-type { border: none; padding: 0; margin: .1em 0; font-size: clamp(1.6rem, 1.2rem + 2vw, 2.2rem); color: var(--rc, var(--c-primary)); }
.shindan-catch { font-weight: 700; color: var(--c-ink-soft); margin-top: 0; }
.shindan-result ul { text-align: left; display: inline-block; margin: .6em auto; }
.shindan-share { margin-top: 1.6em; }
/* シミュレーター */
.sim-presets { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; font-size: .9rem; }
.sim-grid { display: grid; gap: 6px 14px; }
.sim-row { display: grid; grid-template-columns: 9.5em 1fr 7.5em; align-items: center; gap: 10px; }
.sim-row label { font-size: .88rem; font-weight: 600; }
.sim-row input[type="range"] { width: 100%; accent-color: var(--c-primary); }
.sim-row select { font: inherit; padding: 6px 10px; border: 1px solid var(--c-border); border-radius: var(--radius-s); background: var(--c-surface); color: var(--c-ink); }
.sim-val { text-align: right; font-size: .9rem; }
.rank-item {
  background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-s);
  margin: 8px 0; padding: 0;
}
.rank-item summary {
  display: flex; align-items: center; gap: 12px; padding: 13px 16px; cursor: pointer; list-style: none; font-weight: 700;
}
.rank-item summary::-webkit-details-marker { display: none; }
.rank-no {
  flex: none; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  background: var(--c-primary-pale); color: var(--c-primary-strong); font-size: .9rem;
}
.rank-item[open] { border-color: var(--c-primary); }
.rank-name { flex: 1; min-width: 0; }
.rank-gain { flex: none; }
.rank-detail { padding: 0 16px 14px; }
@media (max-width: 599px) {
  .sim-row { grid-template-columns: 1fr 5.5em; }
  .sim-row label { grid-column: 1 / -1; margin-bottom: -4px; }
}

/* ---------- FAQ ---------- */
.faq details {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius-s); padding: 0; margin: 10px 0;
}
.faq summary {
  cursor: pointer; font-weight: 700; padding: 14px 18px; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--c-primary); font-weight: 800; font-size: 1.2rem; flex: none; }
.faq details[open] summary::after { content: "−"; }
.faq .a { padding: 0 18px 14px; color: var(--c-ink-soft); font-size: .92rem; }

/* ---------- フッター ---------- */
footer.site { border-top: 1px solid var(--c-border); background: var(--c-surface); margin-top: 48px; font-size: .82rem; color: var(--c-ink-soft); }
footer.site .inner { max-width: var(--maxw); margin: 0 auto; padding: 28px 20px; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-bottom: 14px; }
footer.site a { color: var(--c-ink-soft); }
footer.site .brand { font-weight: 800; color: var(--c-primary); margin-bottom: 6px; }

/* ---------- 配慮 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .cardbox, a.cardlink:hover .cardbox { transition: none; transform: none; }
}
@media (max-width: 360px) {
  main, header.site .inner, footer.site .inner { padding-left: 14px; padding-right: 14px; }
  .hero { margin-left: -14px; margin-right: -14px; padding-left: 14px; padding-right: 14px; }
  .btn { padding: 12px 18px; font-size: .9rem; }
}