/* 株式会社ルートファインダー サイト共通スタイル */
:root{
  /* コーポレートカラー（2026-11-01 本人決定）：群青 #1E3A8A・ピンク #FF4F8B・淡い背景 #FFEDF3
     --pink は線・点などの飾りだけに使う（白地の小さい文字だとコントラスト約3:1で読みにくい）。文字には --pink-ink */
  --bg:#FBFBFD; --surface:#FFFFFF; --ink:#1A2347; --muted:#4B5675; --line:#E3E6EF;
  --navy:#1E3A8A; --accent:#1E3A8A; --accent-ink:#1E3A8A;
  --pink:#FF4F8B; --pink-ink:#C8276A; --soft:#FFEDF3;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0E1430; --surface:#151D40; --ink:#E6E9F5; --muted:#A9B3D1; --line:#26305A;
    --navy:#C5D3FF; --accent:#9DB4FF; --accent-ink:#C5D3FF;
    --pink:#FF7AA8; --pink-ink:#FF7AA8; --soft:#2A1D3A;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth; scroll-padding-top:72px}
body{margin:0; background:var(--bg); color:var(--ink);
  font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic UI",sans-serif;
  font-size:16px; line-height:1.9; -webkit-text-size-adjust:100%; overflow-wrap:anywhere;}
a{color:var(--accent)}
.wrap{max-width:60rem; margin:0 auto; padding:0 16px;}

/* ヘッダー */
header{position:sticky; top:0; z-index:10; background:color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter:blur(6px); border-bottom:1px solid var(--line);}
header .wrap{display:flex; align-items:center; justify-content:space-between; gap:1rem; min-height:60px;}
.brand{display:block; flex:none; text-decoration:none}
.brand img{display:block; height:44px; width:auto}
nav{display:flex; gap:1.1rem; font-size:.88rem}
nav a{color:var(--muted); text-decoration:none; white-space:nowrap}
nav a:hover{color:var(--accent)}
/* スマホ：ナビを社名の下に横並び（横スクロール可）で出す */
@media (max-width:640px){
  header .wrap{flex-direction:column; align-items:stretch; gap:0; padding-top:.5rem}
  .brand img{height:38px}
  nav{overflow-x:auto; gap:1rem; padding:.35rem 0 .5rem; font-size:.84rem; scrollbar-width:none}
  nav::-webkit-scrollbar{display:none}
  html{scroll-padding-top:104px}
}

/* ヒーロー */
.hero{padding:5.5rem 16px 4.5rem}
.hero .tag{font-family:"Noto Serif JP",serif; color:var(--pink-ink); letter-spacing:.08em; font-size:.95rem; margin:0}
.hero h1{color:var(--navy); font-family:"Noto Serif JP",serif; font-size:clamp(1.9rem, 5.4vw, 3rem); line-height:1.45; margin:.6rem 0 1.2rem; text-wrap:balance}
.hero p.lead{font-size:1.05rem; color:var(--muted); max-width:38rem; margin:0}
.hero .ridge{margin-top:3rem; width:100%; height:auto; display:block; color:var(--accent); opacity:.85}
@media (max-width:640px){ .hero{padding:3.5rem 16px 3rem} }

/* セクション共通 */
section{padding:4rem 0; border-top:1px solid var(--line)}
.label{font-size:.78rem; letter-spacing:.2em; color:var(--accent); font-weight:700; margin:0 0 .5rem}
.label::before{content:""; display:inline-block; width:1.6em; height:2px; background:var(--pink); vertical-align:middle; margin-right:.6em}
h2{color:var(--navy); font-family:"Noto Serif JP",serif; font-size:clamp(1.4rem, 3.6vw, 1.9rem); line-height:1.5; margin:0 0 1.6rem; text-wrap:balance}
.prose p{max-width:42rem; margin:0 0 1.1rem}
.intro{max-width:42rem; margin:-.6rem 0 1.6rem; color:var(--muted)}

/* 事業内容 */
.cards{display:grid; grid-template-columns:repeat(auto-fit, minmax(15rem, 1fr)); gap:1rem}
.card{background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:1.4rem 1.3rem}
.card .no{font-family:"Noto Serif JP",serif; color:var(--pink-ink); font-size:.9rem}
.card h3{font-size:1.08rem; margin:.3rem 0 .6rem; line-height:1.5}
.card p{margin:0; color:var(--muted); font-size:.93rem}

/* 進め方 */
.steps{list-style:none; padding:0; margin:0; display:grid; gap:.8rem; max-width:44rem}
.steps li{display:grid; grid-template-columns:2.6rem 1fr; gap:.8rem; align-items:start;
  background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:1rem 1.1rem}
.steps .n{width:2.2rem; height:2.2rem; border-radius:50%; background:var(--soft); color:var(--accent-ink);
  display:grid; place-items:center; font-weight:700; font-size:.9rem}
.steps b{display:block; font-size:1rem}
.steps span{color:var(--muted); font-size:.92rem}

/* 社名の由来 */
.origin{display:grid; grid-template-columns:1fr; gap:1.2rem; max-width:44rem}
.origin .pair{display:grid; grid-template-columns:repeat(auto-fit, minmax(12rem,1fr)); gap:1rem}
.origin .pair div{background:var(--soft); border-radius:12px; padding:1rem 1.1rem}
.origin .pair b{font-family:"Noto Serif JP",serif; font-size:1.15rem; color:var(--accent-ink)}
.origin .pair p{margin:.3rem 0 0; font-size:.93rem; color:var(--muted)}
.origin > p{margin:0}

/* 会社概要 */
table{width:100%; max-width:44rem; border-collapse:collapse; background:var(--surface);
  border:1px solid var(--line); border-radius:12px; overflow:hidden; font-size:.95rem}
th,td{text-align:left; vertical-align:top; padding:.85rem 1rem; border-bottom:1px solid var(--line)}
th{width:8.5rem; color:var(--muted); font-weight:500; background:color-mix(in srgb, var(--soft) 60%, var(--surface))}
tr:last-child th, tr:last-child td{border-bottom:none}
td ul{margin:0; padding-left:1.2em}
@media (max-width:520px){ th,td{display:block; width:auto} th{border-bottom:none; padding-bottom:.2rem} td{padding-top:.2rem} }

/* お問い合わせ */
.contact{background:var(--surface); border:1px solid var(--line); border-left:4px solid var(--pink); border-radius:12px; padding:1.6rem 1.4rem; max-width:44rem}
.contact p{margin:0}
.contact .mail{display:inline-block; margin-top:.4rem; font-size:1.1rem; font-weight:700; text-decoration:none}
.contact .note{margin-top:.8rem; font-size:.85rem; color:var(--muted)}

/* 下層ページ（プライバシーポリシー・404） */
.page{padding-top:3.5rem; padding-bottom:4rem}
.page h1{color:var(--navy); font-family:"Noto Serif JP",serif; font-size:clamp(1.5rem, 4.2vw, 2.1rem); line-height:1.5; margin:.2rem 0 1.4rem}
.page h2{font-size:1.15rem; margin:2.4rem 0 .6rem; font-family:"Noto Sans JP",sans-serif; font-weight:700}
.page p, .page ul, .page ol, .page dl{max-width:44rem}
.page li{margin:.2rem 0}
.page dl{display:grid; grid-template-columns:8rem 1fr; gap:.3rem 1rem; margin:0}
.page dt{color:var(--muted)}
.page dd{margin:0}
@media (max-width:520px){ .page dl{grid-template-columns:1fr} .page dd{margin-bottom:.5rem} }
.page .meta{color:var(--muted); font-size:.88rem; margin-top:2.6rem}

footer{padding:2.4rem 0 3rem; border-top:1px solid var(--line); color:var(--muted); font-size:.82rem}
footer .wrap{display:flex; flex-wrap:wrap; gap:.6rem 1.4rem; justify-content:space-between}
footer nav{font-size:.82rem; gap:1.2rem; padding:0; overflow:visible}
footer a{color:var(--muted)}