:root{--pcs-bg:#0b1220;--pcs-surface:#121a2b;--pcs-surface-2:#182338;--pcs-border:#24314c;--pcs-text:#e6edf7;--pcs-text-muted:#93a3bd;--pcs-accent:#3b82f6;--pcs-accent-hover:#2f6fe0;--pcs-accent-strong:#2563eb;--pcs-accent-strong-hover:#1d4ed8;--pcs-focus:#93c5fd;--pcs-accent-ink:#60a5fa;--pcs-success:#34d399;--pcs-danger:#f87171;--pcs-warning:#fbbf24;--pcs-easing:cubic-bezier(.2, 0, 0, 1)}*{box-sizing:border-box;margin:0;padding:0}html{color-scheme:dark;scroll-behavior:smooth;scroll-padding-top:76px}:focus-visible{outline:2px solid var(--pcs-focus);outline-offset:3px}main:focus{outline:none}.skip-link{z-index:100;background:var(--pcs-accent-strong);color:#fff;transition:top .15s var(--pcs-easing);border-radius:0 0 10px 10px;padding:12px 18px;font-weight:600;text-decoration:none;position:absolute;top:-64px;left:16px}.skip-link:focus{top:0}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}body{background:var(--pcs-bg);color:var(--pcs-text);-webkit-font-smoothing:antialiased;font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.6}.hero{text-align:center;padding:88px 24px 64px;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(38% 42% at 50% 32%,#3b82f629,#0000 70%),radial-gradient(28% 30% at 62% 24%,#12aafe1a,#0000 70%);height:120%;position:absolute;inset:-40% -20% auto}.hero-logo{border-radius:26px;width:104px;height:104px;position:relative;box-shadow:0 16px 48px #0000004d}.hero h1{letter-spacing:-.02em;text-wrap:balance;margin-top:20px;font-size:clamp(2.6rem,6vw,3.6rem);font-weight:700;position:relative}.tagline{color:var(--pcs-accent-ink);margin-top:8px;font-size:1.2rem;font-weight:600;position:relative}.hero .sub{max-width:640px;color:var(--pcs-text-muted);margin:18px auto 0;position:relative}.hero-cta{flex-wrap:wrap;justify-content:center;gap:14px;margin-top:32px;display:flex;position:relative}.hero-note{color:var(--pcs-text-muted);margin-top:18px;font-size:.85rem;position:relative}.nav{z-index:10;background:color-mix(in srgb, var(--pcs-bg) 82%, transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--pcs-border);align-items:center;gap:20px;padding:12px 24px;display:flex;position:sticky;top:0}.nav-brand{color:var(--pcs-text);align-items:center;gap:10px;font-size:1.05rem;font-weight:700;text-decoration:none;display:flex}.nav-brand img{border-radius:7px}.nav-links{gap:6px 18px;margin-left:auto;display:flex}.nav-links a{min-height:36px;color:var(--pcs-text-muted);transition:color .12s var(--pcs-easing);align-items:center;padding:6px 2px;font-size:.92rem;text-decoration:none;display:inline-flex}.nav-links a:hover{color:var(--pcs-text)}.nav-studio{min-height:36px;color:var(--pcs-text-muted);letter-spacing:.14em;text-transform:uppercase;border-left:1px solid var(--pcs-border);transition:color .12s var(--pcs-easing);align-items:center;gap:8px;padding-left:16px;font-size:.8rem;text-decoration:none;display:inline-flex}.nav-studio:hover{color:var(--pcs-text)}.nav-studio img{border-radius:6px}.section{max-width:1080px;margin:0 auto;padding:56px 24px 32px}.section h2{letter-spacing:-.01em;text-wrap:balance;margin-bottom:6px;font-size:1.5rem}.section-sub{color:var(--pcs-text-muted);max-width:720px;margin-bottom:28px}.version-chip{vertical-align:6px;text-align:center;min-width:5ch;color:var(--pcs-accent-ink);background:color-mix(in srgb, var(--pcs-accent) 14%, transparent);border:1px solid color-mix(in srgb, var(--pcs-accent) 34%, transparent);border-radius:999px;margin-left:10px;padding:3px 12px;font-size:.8rem;font-weight:600;display:inline-block}.cards{grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:18px;display:grid}.card{background:var(--pcs-surface);border:1px solid var(--pcs-border);border-radius:14px;padding:22px}.artifact-card header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;display:flex}.artifact-card h3 small{color:var(--pcs-text-muted);font-weight:500}.chip{color:var(--pcs-text-muted);background:var(--pcs-surface-2);white-space:nowrap;border-radius:999px;padding:3px 10px;font-size:.72rem;font-weight:600}.chip-accent{color:var(--pcs-accent-ink);background:color-mix(in srgb, var(--pcs-accent) 12%, transparent)}.artifact-desc{color:var(--pcs-text-muted);font-size:.93rem}.artifact-meta{color:var(--pcs-text-muted);margin:10px 0 16px;font-size:.85rem}.btn{cursor:pointer;transition:background .2s var(--pcs-easing), border-color .2s var(--pcs-easing), transform .12s var(--pcs-easing);border:1px solid #0000;border-radius:10px;padding:12px 22px;font-size:.95rem;font-weight:600;text-decoration:none;display:inline-block}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--pcs-accent-strong);color:#fff}.btn-primary:hover{background:var(--pcs-accent-strong-hover)}.btn-ghost{background:var(--pcs-surface-2);color:var(--pcs-text);border-color:#556da8}.btn-ghost:hover{border-color:var(--pcs-accent)}.btn-block{text-align:center;display:block}.hash-box{background:var(--pcs-bg);border:1px solid var(--pcs-border);border-radius:10px;margin-top:16px;padding:10px 12px}.hash-head{letter-spacing:.12em;color:var(--pcs-text-muted);justify-content:space-between;align-items:center;margin-bottom:6px;font-size:.72rem;display:flex}.btn-copy{font:inherit;min-height:34px;color:var(--pcs-accent-ink);border:1px solid color-mix(in srgb, var(--pcs-accent) 34%, transparent);cursor:pointer;transition:color .12s var(--pcs-easing), border-color .12s var(--pcs-easing);background:0 0;border-radius:6px;padding:8px 14px;font-size:.75rem}.btn-copy:hover,.btn-copy.copied{color:var(--pcs-success);border-color:var(--pcs-success)}.hash-box code,.verify code{color:var(--pcs-text-muted);word-break:break-all;white-space:pre-wrap;font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:.78rem;display:block}.verify{color:var(--pcs-text-muted);margin-top:10px;font-size:.8rem}.verify code{background:var(--pcs-bg);border:1px solid var(--pcs-border);border-radius:8px;margin-top:4px;padding:8px 10px}.error-box{border:1px solid color-mix(in srgb, var(--pcs-warning) 50%, transparent);background:color-mix(in srgb, var(--pcs-warning) 8%, transparent);color:var(--pcs-warning);border-radius:10px;padding:14px 16px;font-size:.9rem}.error-box a{color:inherit}.features{grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:14px;display:grid}.feature{transition:border-color .2s var(--pcs-easing), transform .2s var(--pcs-easing)}.feature:hover{border-color:var(--pcs-accent);transform:translateY(-2px)}.feature h3{margin-bottom:6px;font-size:1rem}.feature p{color:var(--pcs-text-muted);font-size:.88rem}footer{border-top:1px solid var(--pcs-border);text-align:center;color:var(--pcs-text-muted);margin-top:56px;padding:36px 24px 48px;font-size:.85rem}footer p{margin:6px 0}footer code{color:var(--pcs-text-muted);font-family:ui-monospace,Consolas,monospace}@media (width<=640px){.nav{flex-wrap:wrap;gap:2px 16px;padding:8px 16px}html{scroll-padding-top:112px}.nav-links{flex-wrap:wrap;order:3;gap:4px 16px;width:100%;margin-left:0}.nav-studio{border-left:none;margin-left:auto;padding-left:0}}@media (width<=380px){html{scroll-padding-top:150px}}@media (pointer:coarse){.nav-links a,.nav-studio,.btn-copy{min-height:44px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.skip-link{transition:none}.feature:hover,.btn:active{transform:none}}.verification-box{background:var(--pcs-surface);border:1px solid var(--pcs-border);border-radius:14px;max-width:720px;padding:24px}.fingerprint-row{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px;display:flex}.fingerprint-label{color:var(--pcs-text-muted);font-size:.85rem;font-weight:500}.fingerprint-value{color:var(--pcs-accent-ink);background:var(--pcs-bg);border:1px solid var(--pcs-border);word-break:break-all;white-space:pre-wrap;border-radius:8px;padding:6px 10px;font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:.8rem}