/* ===== Web Coding Portfolio — top ===== */
:root{
  --ink:#15171c; --ink-2:#1c1f26; --ink-soft:#6a7180;
  --paper:#ffffff; --bg:#f5f6f8; --line:#e6e9ef;
  --accent:#2f6df0; --accent-deep:#1f56cc;
  --radius:16px; --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.85;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:999px;
  font-weight:700;font-size:15px;background:var(--accent);color:#fff;border:1px solid var(--accent);transition:.2s;cursor:pointer;}
.btn:hover{background:var(--accent-deep);border-color:var(--accent-deep);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:none;}
.arrow{transition:.2s;}
a:hover .arrow{transform:translateX(3px);}

/* Header */
.hd{position:sticky;top:0;z-index:40;background:rgba(21,23,28,.85);backdrop-filter:blur(10px);}
.hd-in{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:.02em;font-size:17px;}
.brand .mk{width:16px;height:16px;border-radius:5px;background:var(--accent);}
.nav{display:flex;gap:26px;align-items:center;}
.nav a{font-size:14px;font-weight:600;color:#c7cdd9;}
.nav a:hover{color:#fff;}

/* Hero */
.hero{background:radial-gradient(900px 460px at 78% -8%,#23355f,transparent 60%),var(--ink);color:#fff;padding:96px 0 84px;}
.hero .kicker{font-size:12.5px;letter-spacing:.18em;font-weight:700;color:#8fb0ff;}
.hero h1{font-size:clamp(32px,5.4vw,56px);font-weight:900;line-height:1.28;margin:16px 0 20px;letter-spacing:.01em;}
.hero h1 .hl{color:#8fb0ff;}
.hero p{color:#c7cdd9;font-size:16.5px;max-width:620px;}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
.hero-tags{display:flex;gap:10px;margin-top:34px;flex-wrap:wrap;}
.hero-tags span{font-size:12.5px;font-weight:600;color:#c7cdd9;border:1px solid rgba(255,255,255,.2);padding:6px 14px;border-radius:999px;}

/* Section */
.section{padding:84px 0;}
.section.bg{background:var(--bg);}
.sec-head{margin-bottom:48px;}
.sec-head.center{text-align:center;}
.sec-head .en{font-size:12px;letter-spacing:.2em;color:var(--accent);font-weight:700;}
.sec-head h2{font-size:clamp(24px,3.2vw,34px);font-weight:900;margin-top:8px;}
.sec-head p{color:var(--ink-soft);margin-top:12px;}

/* Works */
.works{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.work{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column;}
.work:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(21,23,28,.12);}
.work .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line);}
.work .thumb img{width:100%;height:100%;object-fit:cover;object-position:top center;transition:.5s;}
.work:hover .thumb img{transform:scale(1.04);}
.work .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.work .cat{font-size:11.5px;font-weight:700;letter-spacing:.08em;color:var(--accent);text-transform:uppercase;}
.work h3{font-size:19px;font-weight:800;margin:8px 0 8px;}
.work p{font-size:14px;color:var(--ink-soft);flex:1;}
.work .tags{display:flex;gap:7px;flex-wrap:wrap;margin:14px 0 16px;}
.work .tags span{font-size:11.5px;color:var(--ink-soft);background:var(--bg);border:1px solid var(--line);padding:3px 10px;border-radius:6px;}
.work .view{font-size:14px;font-weight:700;color:var(--accent);}

/* Services */
.services{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.svc{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;}
.svc .ic{flex-shrink:0;width:50px;height:50px;border-radius:12px;background:#eaf1ff;color:var(--accent);display:flex;align-items:center;justify-content:center;}
.svc .ic svg{width:26px;height:26px;}
.svc h3{font-size:17px;font-weight:800;margin-bottom:6px;}
.svc p{font-size:14px;color:var(--ink-soft);}

/* Flow */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:f;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 18px;text-align:center;position:relative;}
.step .num{counter-increment:f;width:38px;height:38px;margin:0 auto 12px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;}
.step .num::after{content:counter(f);}
.step h3{font-size:15px;font-weight:800;margin-bottom:4px;}
.step p{font-size:12.5px;color:var(--ink-soft);}

/* CTA */
.cta{background:var(--ink);color:#fff;text-align:center;padding:80px 0;}
.cta h2{font-size:clamp(24px,3.4vw,34px);font-weight:900;margin-bottom:14px;}
.cta p{color:#c7cdd9;margin-bottom:30px;}

/* Footer */
.ft{background:#0f1116;color:#7e8694;text-align:center;padding:30px 0;font-size:12.5px;}

/* Reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease;}
.reveal.visible{opacity:1;transform:none;}

@media(max-width:880px){
  .works{grid-template-columns:1fr;max-width:460px;margin:0 auto;}
  .services{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr 1fr;}
  .nav{display:none;}
}
@media(max-width:520px){
  .flow{grid-template-columns:1fr;}
  .section{padding:60px 0;}
  .hero{padding:72px 0 64px;}
}