:root {
  color-scheme: light;
  --ink: #111c32;
  --muted: #536176;
  --paper: #fffdf7;
  --surface: #ffffff;
  --line: #dce2ea;
  --yellow: #ffd84d;
  --coral: #ff6b63;
  --blue: #244e91;
  --shadow: 0 20px 50px rgba(17, 28, 50, 0.1);
  font-family: Inter, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.75; }
a { color: var(--blue); text-underline-offset: 0.2em; }
a:hover { color: #183869; }
img { max-width: 100%; }

.skip-link {
  position: absolute; left: 1rem; top: -5rem; z-index: 20;
  padding: .7rem 1rem; color: white; background: var(--ink); border-radius: .5rem;
}
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky; top: 0; z-index: 10;
  border-bottom: 1px solid rgba(220, 226, 234, .8);
  background: rgba(255, 253, 247, .94);
  backdrop-filter: blur(14px);
}
.nav { max-width: 1120px; margin: auto; padding: .85rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .75rem; color: var(--ink); font-weight: 850; text-decoration: none; letter-spacing: -.02em; }
.brand img { width: 42px; height: 42px; }
.nav-links { display: flex; align-items: center; gap: 1.3rem; font-size: .94rem; }
.nav-links a { color: var(--ink); text-decoration: none; font-weight: 650; }
.nav-links a:hover { color: var(--blue); }
.nav-toggle { display: none; border: 1px solid var(--line); background: var(--surface); border-radius: .65rem; padding: .55rem .75rem; font: inherit; }

main { overflow: hidden; }
.hero {
  position: relative; max-width: 1120px; margin: auto; padding: 7rem 1.5rem 5.5rem;
  display: grid; grid-template-columns: 1.12fr .88fr; align-items: center; gap: 4rem;
}
.hero::before {
  content: ""; position: absolute; width: 34rem; height: 34rem; border-radius: 50%;
  right: -15rem; top: -10rem; background: rgba(255, 216, 77, .28); filter: blur(2px); z-index: -1;
}
.eyebrow { margin: 0 0 .9rem; color: var(--blue); font-weight: 850; letter-spacing: .08em; font-size: .82rem; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.035em; }
h1 { margin: 0; font-size: clamp(2.65rem, 7vw, 5.4rem); }
.hero h1 span { display: block; color: var(--blue); }
.lead { max-width: 42rem; margin: 1.5rem 0 2rem; color: var(--muted); font-size: clamp(1.02rem, 2vw, 1.2rem); }
.actions { display: flex; flex-wrap: wrap; gap: .85rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .7rem 1.15rem; border-radius: .8rem; font-weight: 800; text-decoration: none; }
.button-primary { background: var(--ink); color: white; box-shadow: var(--shadow); }
.button-primary:hover { color: white; background: #24324d; }
.button-secondary { border: 1px solid var(--line); color: var(--ink); background: white; }

.phone-card { width: min(100%, 360px); justify-self: center; border: 10px solid var(--ink); border-radius: 2.5rem; padding: 1rem; background: var(--surface); box-shadow: var(--shadow); transform: rotate(2deg); }
.phone-screen { min-height: 530px; border-radius: 1.75rem; padding: 1.25rem; background: linear-gradient(155deg, #121d33, #253b64); color: white; display: flex; flex-direction: column; justify-content: space-between; }
.phone-top { display: flex; justify-content: space-between; align-items: center; font-size: .78rem; color: #d5ddeb; }
.video-preview { display: grid; place-items: center; min-height: 270px; margin: 1rem 0; border: 1px solid rgba(255,255,255,.18); border-radius: 1.25rem; background: radial-gradient(circle at 50% 36%, rgba(255,216,77,.28), transparent 42%); }
.play { display: grid; place-items: center; width: 74px; height: 74px; padding-left: 5px; border: 2px solid var(--yellow); border-radius: 50%; color: var(--yellow); font-size: 2rem; }
.approval { padding: 1rem; border-radius: 1rem; color: var(--ink); background: var(--yellow); font-weight: 850; }
.approval small { display: block; font-weight: 650; opacity: .7; }

.section { padding: 5.5rem 1.5rem; }
.section-inner { max-width: 1120px; margin: auto; }
.section-heading { max-width: 700px; margin-bottom: 2.4rem; }
.section h2 { margin: .2rem 0 1rem; font-size: clamp(2rem, 4.5vw, 3.2rem); }
.section-heading p { color: var(--muted); }
.tinted { background: #f0f4fb; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.card { border: 1px solid var(--line); border-radius: 1.15rem; padding: 1.5rem; background: var(--surface); box-shadow: 0 8px 25px rgba(17,28,50,.05); }
.card-number { display: grid; place-items: center; width: 2.4rem; height: 2.4rem; border-radius: .75rem; background: var(--yellow); font-weight: 900; }
.card h3 { margin: 1.2rem 0 .6rem; font-size: 1.25rem; }
.card p { margin: 0; color: var(--muted); }

.trust-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
.trust-item { display: flex; gap: 1rem; align-items: flex-start; padding: 1.4rem; border-top: 2px solid var(--ink); }
.trust-mark { color: var(--coral); font-size: 1.4rem; font-weight: 950; }
.trust-item h3 { margin: 0 0 .35rem; }
.trust-item p { margin: 0; color: var(--muted); }

.legal-main { max-width: 860px; margin: auto; padding: 5rem 1.5rem 7rem; overflow: visible; }
.legal-main h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
.legal-meta { margin: 1rem 0 3rem; color: var(--muted); }
.legal-main section { margin-top: 2.8rem; }
.legal-main h2 { margin: 0 0 .8rem; font-size: 1.45rem; }
.legal-main h3 { margin-top: 1.5rem; }
.legal-main li + li { margin-top: .55rem; }
.notice { border-left: 4px solid var(--yellow); padding: 1rem 1.2rem; background: #fff8d9; border-radius: 0 .7rem .7rem 0; }

.callback-card { max-width: 760px; margin: 5rem auto; padding: 2rem; border: 1px solid var(--line); border-radius: 1.25rem; background: white; box-shadow: var(--shadow); }
.callback-card h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
.code-box { width: 100%; min-height: 8rem; padding: 1rem; resize: vertical; border: 1px solid var(--line); border-radius: .7rem; background: #f5f7fa; color: var(--ink); font: 500 .9rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
.status-pill { display: inline-block; padding: .3rem .7rem; border-radius: 999px; background: #eaf5ec; color: #226a31; font-weight: 800; font-size: .82rem; }
.status-pill.error { background: #ffe9e7; color: #96372e; }

.site-footer { background: var(--ink); color: #dce3ef; }
.footer-inner { max-width: 1120px; margin: auto; padding: 2.6rem 1.5rem; display: grid; grid-template-columns: 1fr auto; gap: 2rem; }
.footer-brand { color: white; font-weight: 850; font-size: 1.1rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1rem; }
.footer-links a { color: #dce3ef; }
.copyright { grid-column: 1 / -1; padding-top: 1.2rem; border-top: 1px solid rgba(255,255,255,.14); font-size: .82rem; color: #aeb9cb; }

@media (max-width: 780px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; left: 1rem; right: 1rem; top: 4.5rem; flex-direction: column; align-items: stretch; padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; background: white; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .hero { grid-template-columns: 1fr; padding-top: 4.5rem; gap: 3rem; }
  .phone-card { transform: none; }
  .cards, .trust-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .copyright { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}