/* ── Design Tokens ── */
:root {
  --bg: #0a0e1a;
  --bg-surface: #111827;
  --bg-card: #1a2235;
  --bg-card-hover: #1f2942;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --green: #10b981;
  --page-width: 1120px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  font-family: "Inter", -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ── Utilities ── */
.hide-mobile { display: inline; }
@media (max-width: 768px) { .hide-mobile { display: none; } }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; border: none; border-radius: 999px; cursor: pointer;
  font-weight: 600; font-size: 0.95rem; transition: all 200ms ease;
  text-decoration: none;
}
.btn-sm { height: 40px; padding: 0 20px; font-size: 0.85rem; }
.btn-lg { height: 52px; padding: 0 32px; font-size: 1rem; }
.btn-full { width: 100%; }
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); box-shadow: 0 8px 30px var(--accent-glow); }
.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.3); }
.btn-outline {
  background: transparent; color: var(--accent-light);
  border: 1px solid var(--accent); height: 48px; padding: 0 24px;
}
.btn-outline:hover { background: rgba(99,102,241,0.1); }
.btn:disabled { opacity: 0.6; cursor: wait; }

/* ── Nav ── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,14,26,0.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--page-width); margin: 0 auto;
  padding: 0 24px; height: 64px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.1rem; letter-spacing: 0.08em;
}
.nav-logo {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 12px var(--accent-glow);
}
.nav-links { display: flex; gap: 32px; }
.nav-links a { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; transition: color 200ms; }
.nav-links a:hover { color: var(--text); }
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav .btn-sm { display: none; }
}

/* ── Hero ── */
.hero {
  position: relative; overflow: hidden;
  padding: 120px 24px 80px; text-align: center;
}
.hero-inner { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.hero-eyebrow {
  display: inline-block; margin-bottom: 20px; padding: 6px 16px;
  border-radius: 999px; border: 1px solid var(--border-strong);
  background: rgba(99,102,241,0.08); color: var(--accent-light);
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2.8rem, 7vw, 5.2rem); font-weight: 800;
  line-height: 1.05; letter-spacing: -0.04em;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  margin-top: 24px; max-width: 600px; margin-left: auto; margin-right: auto;
  color: var(--text-secondary); font-size: 1.15rem; line-height: 1.8;
}
.hero-actions { display: flex; justify-content: center; gap: 16px; margin-top: 40px; flex-wrap: wrap; }
.hero-metrics {
  display: flex; justify-content: center; gap: 48px; margin-top: 64px;
  padding-top: 40px; border-top: 1px solid var(--border);
}
.metric { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.metric-value { font-size: 1.8rem; font-weight: 800; letter-spacing: -0.03em; color: var(--accent-light); }
.metric-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.hero-glow {
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 600px; border-radius: 50%;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
@media (max-width: 768px) {
  .hero { padding: 80px 20px 60px; }
  .hero-metrics { gap: 24px; flex-wrap: wrap; }
}

/* ── Sections ── */
.section {
  max-width: var(--page-width); margin: 0 auto;
  padding: 80px 24px;
}
.section-header { text-align: center; max-width: 700px; margin: 0 auto 48px; }
.section-eyebrow {
  color: var(--accent-light); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800;
  line-height: 1.15; letter-spacing: -0.03em;
}
.section-sub {
  margin-top: 16px; color: var(--text-secondary); font-size: 1.05rem; line-height: 1.8;
}

/* ── Social Proof ── */
.proof-section { text-align: center; padding: 40px 24px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.proof-label { color: var(--text-muted); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 20px; }
.proof-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }
.proof-badge {
  padding: 8px 20px; border-radius: 999px;
  border: 1px solid var(--border-strong); background: var(--bg-surface);
  color: var(--text-secondary); font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.06em;
}

/* ── Features ── */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  padding: 32px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); background: var(--bg-surface);
  transition: all 300ms ease;
}
.feature-card:hover { border-color: var(--border-strong); background: var(--bg-card); transform: translateY(-2px); }
.feature-icon {
  display: flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: var(--radius-md);
  background: var(--accent); color: #fff;
  font-size: 1.2rem; font-weight: 800; margin-bottom: 20px;
}
.feature-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; }
.feature-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }
@media (max-width: 768px) { .features-grid { grid-template-columns: 1fr; } }

/* ── Why Section ── */
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.why-card {
  padding: 28px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); background: var(--bg-surface);
}
.why-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; color: var(--accent-light); }
.why-card p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; }
@media (max-width: 768px) { .why-grid { grid-template-columns: 1fr; } }

/* ── Pricing ── */
.pricing-section { padding-bottom: 40px; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.price-card {
  position: relative; padding: 32px; border-radius: var(--radius-xl);
  border: 1px solid var(--border); background: var(--bg-surface);
  display: flex; flex-direction: column;
}
.price-card-featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(99,102,241,0.08) 0%, var(--bg-surface) 40%);
  box-shadow: 0 8px 40px var(--accent-glow);
}
.price-badge {
  position: absolute; top: -12px; right: 24px;
  padding: 4px 14px; border-radius: 999px;
  background: var(--accent); color: #fff;
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase;
}
.price-tier { color: var(--text-muted); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 4px; }
.price-name { font-size: 1.3rem; font-weight: 700; margin-bottom: 12px; }
.price-amount { font-size: 2.4rem; font-weight: 800; letter-spacing: -0.04em; margin-bottom: 8px; }
.price-amount span { font-size: 1rem; font-weight: 500; color: var(--text-muted); }
.price-desc { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 20px; line-height: 1.6; }
.price-features { display: grid; gap: 10px; margin-bottom: 24px; flex-grow: 1; }
.price-features li {
  padding-left: 24px; position: relative;
  color: var(--text-secondary); font-size: 0.9rem;
}
.price-features li::before {
  content: "✓"; position: absolute; left: 0;
  color: var(--green); font-weight: 700;
}
@media (max-width: 768px) { .pricing-grid { grid-template-columns: 1fr; } }

/* ── Forms ── */
.checkout-form { display: grid; gap: 12px; margin-top: auto; }
.input {
  width: 100%; height: 48px; padding: 0 16px;
  border: 1px solid var(--border-strong); border-radius: var(--radius-md);
  background: var(--bg-card); color: var(--text);
  font: inherit; font-size: 0.95rem;
}
.input::placeholder { color: var(--text-muted); }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.legal-check {
  display: flex; align-items: flex-start; gap: 8px;
  color: var(--text-muted); font-size: 0.82rem; line-height: 1.5;
}
.legal-check a { color: var(--accent-light); }
.form-status { min-height: 1.4em; color: #f87171; font-size: 0.88rem; }

/* ── CTA Section ── */
.cta-section {
  text-align: center; padding: 80px 24px;
  border-top: 1px solid var(--border);
}
.cta-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -0.03em; }
.cta-sub { margin-top: 16px; color: var(--text-secondary); font-size: 1.05rem; }
.cta-actions { display: flex; justify-content: center; gap: 16px; margin-top: 32px; flex-wrap: wrap; }

/* ── Footer ── */
.footer { border-top: 1px solid var(--border); padding: 32px 24px; }
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--page-width); margin: 0 auto;
}
.footer-brand { font-weight: 800; font-size: 0.95rem; letter-spacing: 0.08em; color: var(--text-muted); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text-muted); font-size: 0.82rem; transition: color 200ms; }
.footer-links a:hover { color: var(--text-secondary); }
@media (max-width: 768px) {
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}

/* ── Assessment page (preserved) ── */
.assess-page { --page-width: 1120px; }
.assess-hero { display: grid; gap: 16px; }
.assess-hero h1 { max-width: 14ch; }
.assess-meta { display: flex; flex-wrap: wrap; gap: 10px; }
.assess-meta span, .tier-badge, .type-chip {
  display: inline-flex; align-items: center; min-height: 38px; padding: 0 14px;
  border-radius: 999px; background: var(--bg-surface); border: 1px solid var(--border);
  color: var(--text-muted); font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.assess-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.9fr); gap: 18px; }
@media (max-width: 768px) { .assess-layout { grid-template-columns: 1fr; } }

/* ── Verification page (preserved) ── */
.verify-page { --page-width: 860px; }

/* ── Legal pages (preserved) ── */
.legal-page { --page-width: 880px; }
.back-link { width: fit-content; font-weight: 600; color: var(--accent-light); }
.prose { display: grid; gap: 24px; }
.prose section { display: grid; gap: 10px; }
.prose h2 { font-size: clamp(1.15rem, 2vw, 1.45rem); line-height: 1.3; }
.prose p { color: var(--text-secondary); line-height: 1.8; }