/* VectraSystem marketing shell and static hero fallback. */
:root{--ink:#0b0d12;--paper:#f7f7f3;--muted:#5f6670;--violet:#5955e7;--mint:#b9f8e5;--line:#dfe1e5}
*{box-sizing:border-box}
html{min-width:320px;scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:'Pretendard Variable',ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
a{text-underline-offset:4px}
.brand-lockup,.section-kicker,.display-title,.video-title{font-family:'Sora Variable','Pretendard Variable',ui-sans-serif,system-ui,sans-serif}
.brand-lockup{display:inline-flex;align-items:center;gap:.7rem;font-weight:700;letter-spacing:-.03em}
.brand-mark{display:block;width:2.4rem;height:2rem;flex:none;object-fit:contain}
.public-nav{border-bottom:1px solid rgba(11,13,18,.08);background:rgba(247,247,243,.94);backdrop-filter:blur(16px)}
.nav-link{display:block;padding:.7rem .8rem;border-radius:.75rem;color:#343941;font-size:.93rem;font-weight:600}
.nav-link:hover,.nav-link:focus-visible{background:#ecece7;color:#000}
.pill{display:inline-flex;min-height:3rem;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:9999px;font-weight:700}
.pill-dark{color:#fff;background:var(--ink)}
.pill-light{border:1px solid var(--line);color:var(--ink);background:#fff}
.hero{position:relative;isolation:isolate;min-height:680px;overflow:hidden;background:#11131a;color:#fff}
.hero-poster{position:absolute;inset:0;z-index:-2;background:radial-gradient(circle at 75% 20%,rgba(89,85,231,.8),transparent 31%),radial-gradient(circle at 18% 80%,rgba(55,209,166,.42),transparent 36%),linear-gradient(130deg,#0b0d12 8%,#242052 54%,#0f4b48)}
.hero-poster::after{position:absolute;inset:-20%;content:"";background:conic-gradient(from 110deg,transparent,rgba(255,255,255,.1),transparent 30%);animation:drift 14s linear infinite}
.hero-still .hero-poster::after{animation-play-state:paused}
.hero-grid{display:grid;min-height:680px;align-items:end;padding-top:8rem;padding-bottom:5rem}
.hero h1{max-width:900px;margin:0;font-size:clamp(3.4rem,9vw,8.3rem);font-weight:500;line-height:.92;letter-spacing:-.07em}
.hero-copy{max-width:630px;margin:2rem 0;color:#dddde8;font-size:clamp(1.05rem,2vw,1.25rem);line-height:1.7}
.media-control{position:absolute;right:1.25rem;bottom:1.25rem;min-height:2.75rem;padding:.6rem 1rem;border:1px solid rgba(255,255,255,.45);border-radius:9999px;color:#fff;background:rgba(11,13,18,.65)}
.section-shell{width:min(1180px,calc(100% - 2rem));margin:auto}
.section-space{padding:clamp(4.5rem,9vw,8rem) 0}
.section-kicker{margin:0 0 1rem;color:var(--violet);font-size:.78rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.display-title{max-width:850px;margin:0;font-size:clamp(2.6rem,6vw,5.5rem);font-weight:500;line-height:1;letter-spacing:-.055em}
.lede{max-width:720px;color:var(--muted);font-size:1.1rem;line-height:1.8}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:3rem}
.feature-card{min-height:280px;padding:2rem;border:1px solid var(--line);border-radius:1.25rem;background:#fff}
.feature-card h2,.feature-card h3{margin-top:0;font-size:1.65rem;letter-spacing:-.035em}
.feature-card p{color:var(--muted);line-height:1.7}
.dark-band{color:#fff;background:var(--ink)}
.dark-band .lede{color:#b9bec7}
.prose-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,8vw,8rem)}
.stack{display:grid;gap:1rem}
.step{padding:1.5rem;border-top:1px solid var(--line)}
.footer{padding:2rem 0;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
.visibility-notice{display:grid;min-height:calc(100vh - 90px);align-content:center;padding:8rem 0 4rem}.visibility-notice h1{margin:0;font-size:clamp(2rem,6vw,4rem);letter-spacing:-.05em}.visibility-notice p{color:var(--muted)}
@keyframes drift{to{transform:rotate(360deg)}}
@media(max-width:820px){.card-grid,.prose-grid{grid-template-columns:1fr}.hero,.hero-grid{min-height:620px}.feature-card{min-height:0}.public-nav .pill{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero-poster::after{animation:none!important}*{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}