:root{--color-bg:#0b0b11;--color-bg-soft:#101018;--color-surface:#12121a;--color-surface-2:#16161f;--color-border:#ffffff14;--color-border-strong:#ffffff29;--color-text-strong:#fafafa;--color-text:#e4e4e7;--color-text-muted:#a1a1aa;--color-text-dim:#71717a;--color-accent:#fbbf24;--color-accent-strong:#f59e0b;--color-accent-soft:#fbbf241f;--color-accent-glow:#fbbf2429;--color-on-accent:#1a1405;--color-ok:#4ade80;--font-display:"Space Grotesk", "Noto Sans JP", system-ui, sans-serif;--font-sans:"Inter", "Noto Sans JP", system-ui, -apple-system, sans-serif;--font-mono:ui-monospace, "SF Mono", "Cascadia Code", "Segoe UI Mono", monospace;--container-max:72rem;--header-height:4rem;--section-pad-y:5rem;--section-pad-x:1.5rem;--radius-lg:1rem;--radius-md:.625rem}@media (width<=639px){:root{--section-pad-y:3.5rem}}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}@media 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svg{width:1.4rem;height:1.4rem}.mobile-menu{border-top:1px solid var(--color-border);-webkit-backdrop-filter:blur(12px);background-color:#0b0b11f2}.mobile-nav{flex-direction:column;gap:.25rem;padding-block:1rem;display:flex}.mobile-nav a:not(.mobile-cta){border-radius:var(--radius-md);color:var(--color-text-muted);padding:.625rem .75rem;font-size:.9375rem;font-weight:500;text-decoration:none;transition:background-color .15s,color .15s}.mobile-nav a:not(.mobile-cta):hover{color:var(--color-text-strong);background-color:#ffffff0d}.mobile-cta{border-radius:var(--radius-md);background-color:var(--color-accent);color:var(--color-on-accent);text-align:center;margin-top:.75rem;padding:.625rem .75rem;font-weight:700;text-decoration:none}.mobile-cta:hover{background-color:var(--color-accent-strong)}@media (width>=768px){.nav-desktop{display:flex}.menu-toggle,.mobile-menu{display:none}}.hero{min-height:calc(100svh - var(--header-height));border-bottom:1px solid 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var(--color-border);border-radius:var(--radius-md);width:2.25rem;height:2.25rem;color:var(--color-text-muted);justify-content:center;align-items:center;transition:border-color .15s,color .15s,background-color .15s;display:inline-flex}.social-btn svg{width:1.125rem;height:1.125rem}.social-btn:hover{border-color:var(--color-accent);color:var(--color-accent);background-color:var(--color-accent-soft)}.site-footer nav{min-width:10rem}.site-footer nav h2{letter-spacing:.06em;text-transform:uppercase;color:var(--color-text-dim);font-size:.8125rem;font-weight:600}.site-footer nav ul{flex-direction:column;gap:.625rem;margin:1rem 0 0;padding:0;list-style:none;display:flex}.site-footer nav a{color:var(--color-text-muted);font-size:.875rem;text-decoration:none;transition:color .15s}.site-footer nav a:hover{color:var(--color-accent)}.footer-bottom{border-top:1px solid var(--color-border);flex-direction:column;gap:.5rem;margin-top:3rem;padding-block:1.5rem 2.75rem;display:flex}@media (width>=640px){.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}}.footer-bottom p{color:var(--color-text-dim);margin:0;font-size:.8125rem}