:root{
  --bg:#0b0f14;
  --card:#111827;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --line:rgba(255,255,255,.10);
  --accent:#22c55e;
  --accent2:#38bdf8;
  --shadow:0 12px 30px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  background: radial-gradient(1200px 700px at 15% 10%, rgba(56,189,248,.15), transparent 60%),
              radial-gradient(900px 600px at 80% 0%, rgba(34,197,94,.12), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.7;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 18px}
.section{padding:64px 0}
.section-sm{padding:36px 0}

.kicker{
  display:inline-flex;gap:10px;align-items:center;
  color:var(--muted);font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;font-size:12px
}
.kicker .dot{
  width:8px;height:8px;border-radius:99px;
  background:linear-gradient(90deg,var(--accent2),var(--accent));
  box-shadow:0 0 0 6px rgba(56,189,248,.10);
}

h1,h2,h3{margin:0 0 12px}
h1{font-size:clamp(28px, 4vw, 44px);line-height:1.2}
h2{font-size:clamp(22px, 3vw, 32px);line-height:1.25}
h3{font-size:18px;line-height:1.35}
p{margin:0 0 14px;color:rgba(229,231,235,.92)}
small, .muted{color:var(--muted)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:10px;padding:12px 16px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  font-weight:700;
}
.btn.primary{
  border:none;
  background:linear-gradient(90deg,var(--accent2),var(--accent));
  color:#071018;
}
.btn.ghost{box-shadow:none;background:transparent}
.btn:hover{transform: translateY(-1px)}
.btn:active{transform: translateY(0px)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}

.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.badge{
  padding:7px 10px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:rgba(229,231,235,.95);
  font-size:12px;font-weight:700;
}

/* Header */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,15,20,.75);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:900;letter-spacing:.04em;
}
.brand .mark{
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  box-shadow:0 14px 30px rgba(34,197,94,.16);
}
.brand .name{display:flex;flex-direction:column;line-height:1.1}
.brand .name span{font-size:12px;color:var(--muted);font-weight:700;letter-spacing:.08em}

.nav{
  display:flex;align-items:center;gap:18px;
}
.nav a{
  color:rgba(229,231,235,.92);
  font-weight:700;
  padding:10px 10px;border-radius:10px;
}
.nav a:hover{background:rgba(255,255,255,.06)}
.nav .cta{margin-left:8px}
.nav .cta a{
  padding:10px 12px;
  background:linear-gradient(90deg, rgba(56,189,248,.15), rgba(34,197,94,.15));
  border:1px solid var(--line);
}

/* Mobile menu */
.burger{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(11,15,20,.92);
}
.mobile-panel a{
  display:block;
  padding:14px 18px;
  border-bottom:1px solid var(--line);
  font-weight:800;
}

/* Hero */
.hero{
  padding:72px 0 48px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:22px;
  align-items:stretch;
}
.card{
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  border-radius:18px;
  box-shadow: var(--shadow);
}
.card.pad{padding:22px}
.hero-card{
  background:
    radial-gradient(900px 400px at 20% 0%, rgba(56,189,248,.15), transparent 60%),
    radial-gradient(700px 500px at 80% 10%, rgba(34,197,94,.12), transparent 55%),
    rgba(255,255,255,.03);
}
.hero-side .stat{
  padding:16px 18px;border-radius:16px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.hero-side .stat b{font-size:20px}
.hero-side .stat + .stat{margin-top:12px}

/* Grid cards */
.grid{
  display:grid;gap:16px;
  grid-template-columns: repeat(4, 1fr);
}
.grid .card{padding:18px}
.card h3{margin-bottom:8px}
.card p{margin-bottom:0}

/* Split */
.split{
  display:grid;gap:18px;
  grid-template-columns: 1fr 1fr;
}
.list{
  margin:0;padding-left:18px;color:rgba(229,231,235,.92);
}
.list li{margin:8px 0}

/* Table */
.table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:16px;
  background:rgba(255,255,255,.03);
}
.table th,.table td{
  text-align:left;
  padding:14px 14px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.table th{color:rgba(229,231,235,.92);width:28%}
.table tr:last-child th,.table tr:last-child td{border-bottom:none}

/* Form */
.form{
  display:grid;gap:12px;
}
.field label{display:block;font-weight:800;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  outline:none;
}
.field textarea{min-height:140px;resize:vertical}

/* Footer */
.footer{
  border-top:1px solid var(--line);
  padding:28px 0;
  color:var(--muted);
}
.footer-grid{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.footer a{color:rgba(229,231,235,.85)}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr}
  .grid{grid-template-columns: repeat(2, 1fr)}
  .split{grid-template-columns:1fr}
  .nav{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .mobile-panel.open{display:block}
}
@media (max-width: 560px){
  .grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .hero{padding:62px 0 38px}
}