:root{
  --bg:#0b1220;
  --panel:#0f1b33;
  --panel2:#0c172d;
  --text:#e8eefc;
  --muted:#b6c3e6;
  --line:rgba(232,238,252,.14);
  --accent:#6ee7ff;
  --accent2:#a78bfa;
  --shadow: 0 14px 40px rgba(0,0,0,.35);
  --radius: 16px;
  --radius2: 22px;
  --max: 1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  background: radial-gradient(1000px 500px at 15% 10%, rgba(110,231,255,.18), transparent 60%),
              radial-gradient(800px 500px at 80% 15%, rgba(167,139,250,.18), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.7;
}

a{color:inherit; text-decoration:none}
a:hover{opacity:.95}
strong{color:var(--text)}

.container{max-width:var(--max); margin:0 auto; padding:0 20px}

.skip-link{
  position:absolute; left:-9999px; top:0;
  background:#fff; color:#000; padding:10px 12px; border-radius:10px;
}
.skip-link:focus{left:16px; top:14px; z-index:9999}

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); border:0;
}

/* Header */
.site-header{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background: rgba(11,18,32,.65);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
  gap:14px;
}

.brand{display:flex; gap:12px; align-items:center}
.brand-mark{
  display:inline-flex; align-items:center; justify-content:center;
  width:44px; height:44px;
  border-radius:14px;
  background: linear-gradient(135deg, rgba(110,231,255,.25), rgba(167,139,250,.25));
  border:1px solid var(--line);
  font-weight:800;
  letter-spacing:.06em;
}
.brand-title{display:block; font-weight:800}
.brand-sub{display:block; color:var(--muted); font-size:.86rem}

.global-nav{display:flex; gap:14px; align-items:center}
.nav-link{
  padding:10px 12px;
  border-radius:12px;
  color:var(--muted);
  border:1px solid transparent;
}
.nav-link:hover{border-color:var(--line); color:var(--text)}
.nav-link.is-active{color:var(--text); border-color:var(--line); background:rgba(255,255,255,.04)}
.nav-cta{
  background: linear-gradient(135deg, rgba(110,231,255,.20), rgba(167,139,250,.20));
  border-color: rgba(110,231,255,.22);
  color:var(--text);
}

.nav-toggle{
  display:none;
  background:transparent; border:1px solid var(--line);
  color:var(--text);
  border-radius:14px;
  padding:10px 12px;
}
.nav-toggle-lines{
  display:inline-block; width:18px; height:12px; position:relative;
}
.nav-toggle-lines::before, .nav-toggle-lines::after{
  content:"";
  position:absolute; left:0; right:0;
  height:2px; background:var(--text); border-radius:2px;
}
.nav-toggle-lines::before{top:0}
.nav-toggle-lines::after{bottom:0}

/* Hero */
.hero{padding:56px 0 34px}
.hero-small{padding:44px 0 26px}
.hero-inner{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:24px;
  align-items:stretch;
}
.badge{
  display:inline-flex;
  padding:8px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--muted);
  background:rgba(255,255,255,.03);
  font-size:.9rem;
  margin:0 0 12px;
}
.hero h1{
  margin:0 0 12px;
  font-size: clamp(1.85rem, 3.6vw, 3rem);
  line-height:1.18;
  letter-spacing:-.02em;
}
.accent{
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.lead{color:var(--muted); margin:0 0 16px; font-size:1.06rem}

.hero-actions{display:flex; gap:10px; flex-wrap:wrap; margin:18px 0 14px}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 14px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  color:var(--text);
  font-weight:700;
}
.btn.primary{
  border-color: rgba(110,231,255,.30);
  background: linear-gradient(135deg, rgba(110,231,255,.18), rgba(167,139,250,.18));
}
.btn.ghost{background:transparent}
.btn:hover{transform: translateY(-1px); transition: .15s ease}

.hero-points{margin:14px 0 0; padding-left:18px; color:var(--muted)}

.hero-card .card{
  height:100%;
  border-radius: var(--radius2);
  border:1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
  box-shadow: var(--shadow);
  padding:18px;
}
.card-kicker{color:var(--muted); font-weight:700; margin-bottom:12px}
.card-grid{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:12px}
.pill{
  padding:8px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background: rgba(11,18,32,.35);
  font-weight:700;
  font-size:.92rem;
}
.card-note{color:var(--muted); font-size:.92rem}

/* Sections */
.section{padding:40px 0}
.section.alt{
  background: rgba(255,255,255,.02);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-title{margin:0 0 10px; font-size:1.55rem; letter-spacing:-.01em}
.section-lead{margin:0 0 18px; color:var(--muted)}

.grid-3{display:grid; grid-template-columns: repeat(3, 1fr); gap:14px}
.feature{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.03);
  padding:16px;
}
.feature h3{margin:0 0 8px; font-size:1.05rem}
.feature p{margin:0; color:var(--muted)}

.checklist{display:grid; grid-template-columns: 1fr 1fr; gap:10px; margin-top:14px}
.check{
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px 12px 12px 42px;
  position:relative;
  background: rgba(255,255,255,.02);
  color:var(--muted);
}
.check::before{
  content:"✓";
  position:absolute;
  left:14px; top:10px;
  width:22px; height:22px;
  display:flex; align-items:center; justify-content:center;
  border-radius:8px;
  border:1px solid rgba(110,231,255,.30);
  color:var(--text);
  background: rgba(110,231,255,.12);
  font-weight:900;
}
.inline-cta{margin-top:18px; display:flex; gap:10px; flex-wrap:wrap}

/* Steps */
.steps{
  list-style:none;
  margin:16px 0 0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.step{
  display:grid;
  grid-template-columns: 44px 1fr;
  gap:12px;
  border:1px solid var(--line);
  border-radius: var(--radius2);
  background: rgba(255,255,255,.03);
  padding:14px;
}
.step-num{
  width:44px; height:44px;
  border-radius:16px;
  display:flex; align-items:center; justify-content:center;
  font-weight:900;
  background: linear-gradient(135deg, rgba(110,231,255,.18), rgba(167,139,250,.18));
  border:1px solid rgba(110,231,255,.24);
}
.step-body h3{margin:0 0 6px}
.step-body p{margin:0 0 8px; color:var(--muted)}
.step-body ul{margin:0; padding-left:18px; color:var(--muted)}

/* Form */
.form{
  border:1px solid var(--line);
  border-radius: var(--radius2);
  background: rgba(255,255,255,.03);
  padding:16px;
}
.form-row{display:grid; grid-template-columns: 1fr 1fr; gap:12px}
label{display:block; font-weight:700; margin-bottom:12px}
input, textarea{
  width:100%;
  margin-top:6px;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(11,18,32,.35);
  color:var(--text);
  outline:none;
}
input:focus, textarea:focus{border-color: rgba(110,231,255,.35)}
.form-actions{display:flex; align-items:center; gap:12px; flex-wrap:wrap}
.form-note{margin:0; color:var(--muted); font-size:.92rem}

.toast{
  margin-top:10px;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(110,231,255,.10);
  color:var(--text);
  display:none;
}

/* Footer */
.site-footer{border-top:1px solid var(--line); padding:22px 0; color:var(--muted)}
.footer-inner{display:flex; justify-content:space-between; align-items:flex-start; gap:14px; flex-wrap:wrap}
.footer-brand{color:var(--text); font-weight:800}
.footer-right{display:flex; gap:12px; flex-wrap:wrap}
.footer-right a{padding:8px 10px; border-radius:12px; border:1px solid transparent}
.footer-right a:hover{border-color:var(--line); color:var(--text)}

@media (max-width: 920px){
  .hero-inner{grid-template-columns: 1fr}
  .hero-card{display:none}
  .grid-3{grid-template-columns: 1fr}
  .checklist{grid-template-columns: 1fr}
  .form-row{grid-template-columns: 1fr}
}
@media (max-width: 760px){
  .nav-toggle{display:inline-flex; align-items:center; gap:10px}
  .global-nav{
    position:absolute;
    top:64px; right:20px; left:20px;
    display:none;
    flex-direction:column;
    padding:10px;
    border:1px solid var(--line);
    border-radius: var(--radius2);
    background: rgba(11,18,32,.92);
  }
  .global-nav.is-open{display:flex}
  .nav-link{width:100%}
}