:root {
  --bg: #050a1f;
  --bg-2: #0a1540;
  --ink: #eef3ff;
  --ink-soft: #a9b6d9;
  --accent: #3fd0ff;
  --glow: #ffe98a;
  --card: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.12);
  --radius: 22px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 700px at 50% -10%, #1a3bb0 0%, transparent 60%),
    radial-gradient(900px 600px at 100% 60%, #0d2a8a55 0%, transparent 70%),
    var(--bg);
  color: var(--ink);
  font-family: "Hiragino Sans", "Noto Sans JP", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

.wrap { width: min(1080px, 100% - 32px); margin-inline: auto; }

/* Fireflies */
.fireflies { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.fireflies span {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--glow);
  box-shadow: 0 0 12px 4px #ffe98a88;
  opacity: 0;
  animation: float 9s ease-in-out infinite;
}
@keyframes float {
  0% { opacity: 0; transform: translate(0, 0); }
  30% { opacity: 0.9; }
  70% { opacity: 0.6; }
  100% { opacity: 0; transform: translate(30px, -80px); }
}
@media (prefers-reduced-motion: reduce) {
  .fireflies span { animation: none; opacity: 0.5; }
}

main, header, footer { position: relative; z-index: 1; }

/* Header */
.site-header { padding: 18px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: 0.04em; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.lang { font-size: 14px; color: var(--ink-soft); text-decoration: none; border: 1px solid var(--line); padding: 6px 14px; border-radius: 999px; }
.lang:hover { color: var(--ink); border-color: var(--ink-soft); }

/* Hero */
.hero { padding: 40px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero-logo { width: min(360px, 80%); margin-bottom: 20px; filter: drop-shadow(0 0 24px #3fd0ff55); }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.3; margin: 0 0 16px; letter-spacing: 0.02em; }
.hero h1 em { font-style: normal; color: var(--glow); text-shadow: 0 0 24px #ffe98a88; }
.hero p.lead { font-size: clamp(16px, 2vw, 19px); color: var(--ink-soft); margin: 0 0 32px; max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.store-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: #fff; color: #000; text-decoration: none;
  padding: 12px 22px; border-radius: 14px; font-weight: 700;
  box-shadow: 0 8px 30px #3fd0ff44;
  transition: transform 0.15s ease;
}
.store-btn:hover { transform: translateY(-2px); }
.store-btn svg { width: 22px; height: 22px; }
.store-btn small { display: block; font-size: 11px; font-weight: 500; line-height: 1.1; }
.store-btn span { line-height: 1.2; }
.cta-note { font-size: 13px; color: var(--ink-soft); }

.phone {
  border-radius: 44px;
  padding: 10px;
  background: linear-gradient(145deg, #2a3350, #0b0f1d);
  box-shadow: 0 0 0 1px #ffffff22, 0 30px 80px #0006, 0 0 60px #3fd0ff33;
}
.phone img { border-radius: 34px; width: 100%; height: auto; }
.hero .phone { max-width: 340px; margin-inline: auto; transform: rotate(2deg); }

/* Sections */
section { padding: 72px 0; }
.section-title { text-align: center; margin-bottom: 48px; }
.section-title h2 { font-size: clamp(26px, 3.6vw, 38px); margin: 0 0 10px; line-height: 1.35; }
.section-title p { color: var(--ink-soft); margin: 0; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step { text-align: center; }
.step .phone { max-width: 260px; margin: 0 auto 24px; }
.step .num { display: inline-block; font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: 0.12em; margin-bottom: 6px; }
.step h3 { margin: 0 0 8px; font-size: 21px; }
.step p { margin: 0; color: var(--ink-soft); font-size: 15px; }

/* Objects */
.objects { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.object {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 18px; text-align: center;
}
.object img { width: 110px; height: 110px; object-fit: contain; margin: 0 auto 12px; filter: drop-shadow(0 6px 18px #0008); }
.object h3 { margin: 0 0 6px; font-size: 18px; }
.object p { margin: 0; font-size: 14px; color: var(--ink-soft); }
.object .tag { display: inline-block; margin-top: 10px; font-size: 12px; color: #1a1300; background: var(--glow); border-radius: 999px; padding: 2px 10px; font-weight: 700; }

/* Ideas */
.ideas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.idea { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.idea h3 { margin: 0 0 8px; font-size: 18px; }
.idea p { margin: 0; color: var(--ink-soft); font-size: 15px; }

/* Premium */
.premium {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
  background: linear-gradient(135deg, #1b2f8f, #0a1540 70%);
  border: 1px solid var(--line); border-radius: 28px; padding: 44px;
}
.premium h2 { margin: 0 0 12px; font-size: clamp(24px, 3vw, 32px); }
.premium .price { font-size: 15px; color: var(--ink-soft); margin: 0 0 20px; }
.premium ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.premium li { padding-left: 28px; position: relative; }
.premium li::before { content: "✦"; position: absolute; left: 0; color: var(--glow); }
.plan-compare { display: grid; gap: 14px; }
.plan { background: #ffffff0d; border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; }
.plan h3 { margin: 0 0 6px; font-size: 16px; }
.plan p { margin: 0; font-size: 14px; color: var(--ink-soft); }
.plan.pro { border-color: #ffe98a88; box-shadow: 0 0 30px #ffe98a22; }

/* Final CTA */
.final { text-align: center; }
.final img.icon { width: 96px; height: 96px; border-radius: 22px; margin: 0 auto 20px; box-shadow: 0 0 40px #3fd0ff55; }
.final .cta { justify-content: center; }

/* Footer */
.site-footer { padding: 40px 0 56px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--ink); }

/* Responsive */
@media (max-width: 880px) {
  .hero .wrap { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-logo { margin-inline: auto; }
  .hero p.lead { margin-inline: auto; }
  .cta { justify-content: center; }
  .hero .phone { max-width: 260px; transform: none; }
  .steps { grid-template-columns: 1fr; gap: 56px; }
  .objects { grid-template-columns: repeat(2, 1fr); }
  .ideas { grid-template-columns: 1fr; }
  .premium { grid-template-columns: 1fr; padding: 28px 20px; }
}
@media (max-width: 420px) {
  .object img { width: 84px; height: 84px; }
  .object { padding: 18px 12px; }
  section { padding: 56px 0; }
}