/* 株式会社ステップワン — static single-page rebuild. No framework, no WordPress. */
:root{
  --ink:#141619; --muted:#5f666d; --line:#e9ebee; --bg:#fff; --soft:#f5f7f9; --dark:#0f1b2d;
  --accent:#c8102e; --accent2:#0a3d62; --gold:#b8894b;
  --wrap:1140px; --font:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --en:"Montserrat","Noto Sans JP",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.9;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.en{font-family:var(--en);letter-spacing:.14em;text-transform:uppercase}
/* reveal on scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}
/* header */
header.site{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s,box-shadow .3s}
header.site .bar{display:flex;align-items:center;justify-content:space-between;height:72px}
header.site .brand{font-family:var(--en);font-weight:800;font-size:20px;letter-spacing:.06em;color:#fff;transition:color .3s}
header.site .brand b{color:var(--accent)}
header.site nav{display:flex;gap:30px;align-items:center}
header.site nav a{color:#fff;font-size:13.5px;font-weight:500;opacity:.92;transition:opacity .2s,color .3s}
header.site nav a:hover{opacity:1}
header.site.solid{background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 1px 0 var(--line)}
header.site.solid .brand,header.site.solid nav a{color:var(--ink)}
header.site.solid .brand b{color:var(--accent)}
.burger{display:none;background:none;border:0;color:#fff;font-size:26px;cursor:pointer}
header.site.solid .burger{color:var(--ink)}
/* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero .bg{position:absolute;inset:0;z-index:-2}
.hero .bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);animation:kenburns 14s ease-out forwards}
@keyframes kenburns{to{transform:scale(1)}}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(110deg,rgba(10,20,35,.82),rgba(10,20,35,.35))}
.hero .inner{max-width:720px}
.hero .eyebrow{color:#fff;opacity:.85;font-size:13px;margin-bottom:20px;border-left:3px solid var(--accent);padding-left:14px}
.hero h1{font-size:clamp(30px,5.5vw,56px);line-height:1.35;font-weight:700;letter-spacing:.01em;margin-bottom:22px;text-shadow:0 2px 20px rgba(0,0,0,.25)}
.hero p{font-size:17px;opacity:.92;max-width:560px;margin-bottom:34px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:15px 36px;border-radius:2px;font-weight:600;font-size:15px;letter-spacing:.04em;transition:transform .2s,background .2s,box-shadow .2s}
.btn:hover{background:#a50d26;transform:translateY(-2px);box-shadow:0 10px 24px rgba(200,16,46,.3)}
.btn.outline{background:transparent;border:1.5px solid rgba(255,255,255,.6);margin-left:12px}
.btn.outline:hover{background:#fff;color:var(--ink);border-color:#fff}
/* sections */
section{padding:100px 0}
.shead{margin-bottom:54px}
.shead .k{color:var(--accent);font-size:13px;font-weight:700;margin-bottom:10px}
.shead h2{font-size:clamp(24px,3.5vw,36px);line-height:1.4;font-weight:700}
.shead.center{text-align:center}
.lead{font-size:16.5px;color:var(--muted);max-width:760px}
/* about split */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split img{border-radius:4px;box-shadow:0 24px 60px rgba(15,27,45,.14)}
.split .txt p{color:var(--muted);margin-bottom:16px}
/* stats */
.stats{background:var(--dark);color:#fff}
.stats .row{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;text-align:center}
.stats .n{font-family:var(--en);font-size:clamp(34px,5vw,52px);font-weight:800;color:#fff;line-height:1}
.stats .n small{font-size:18px;color:var(--accent);font-weight:700;margin-left:4px}
.stats .l{margin-top:12px;font-size:14px;opacity:.75}
/* process */
.process{background:var(--soft)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:s}
.step{background:#fff;border-radius:6px;padding:34px 26px;position:relative;border-top:3px solid var(--accent);transition:transform .25s,box-shadow .25s}
.step:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(15,27,45,.1)}
.step .no{font-family:var(--en);font-size:40px;font-weight:800;color:var(--soft);-webkit-text-stroke:1px #d7dde3;line-height:1;position:absolute;top:22px;right:24px}
.step .en-l{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.1em;margin-bottom:6px}
.step h3{font-size:18px;margin-bottom:12px}
.step p{font-size:14px;color:var(--muted)}
/* feature (myanmar) */
.feature{position:relative;color:#fff;overflow:hidden}
.feature .bg{position:absolute;inset:0;z-index:-2}
.feature .bg img{width:100%;height:100%;object-fit:cover}
.feature::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(15,27,45,.9),rgba(15,27,45,.55))}
.feature .box{max-width:620px}
.feature .k{color:var(--accent);font-weight:700;font-size:13px;margin-bottom:12px}
.feature h2{font-size:clamp(24px,3.5vw,34px);margin-bottom:20px;line-height:1.4}
.feature p{opacity:.9;margin-bottom:18px}
.feature .tag{display:inline-block;border:1px solid rgba(255,255,255,.35);padding:6px 16px;border-radius:999px;font-size:13px;margin-right:8px}
/* footer / contact */
footer.site{background:#0b0d10;color:#aeb4bb;padding:80px 0 30px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
footer.site .fbrand{font-family:var(--en);font-weight:800;font-size:22px;color:#fff;letter-spacing:.06em;margin-bottom:16px}
footer.site h4{color:#fff;font-size:13px;letter-spacing:.1em;margin-bottom:14px;font-weight:600}
footer.site address{font-style:normal;font-size:14px;line-height:1.9;margin-bottom:16px}
footer.site a:hover{color:#fff}
footer.site .copy{text-align:center;border-top:1px solid #1c2024;margin-top:50px;padding-top:24px;font-size:12.5px;color:#6b7178}
footer.site .en{font-size:12.5px}
@media(max-width:860px){
  header.site nav{display:none}
  .burger{display:block}
  header.site nav.open{display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:#fff;padding:20px 24px;gap:18px;box-shadow:0 10px 30px rgba(0,0,0,.12)}
  header.site nav.open a{color:var(--ink)}
  .split,.stats .row,.steps,footer.site .cols{grid-template-columns:1fr}
  .steps{gap:16px}
  section{padding:64px 0}
  .split{gap:30px}
}