:root{--bg-0:#09090b;--bg-1:#131319;--card:#0d0d11;--card-2:#101015;--card-bd:#222229;--card-bd-2:#2c2c34;--fg:#f4f4f5;--sub:#a1a1aa;--faint:#6c6c78;--hair:#1b1b21;--accent:#7c9cff;--accent-ink:#aebfff;--accent-dim:#7c9cff21;--glow:#7c9cff29;--mono:ui-monospace, "SF Mono", "JetBrains Mono", "Menlo", monospace;--sans:ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Helvetica Neue", sans-serif;--ease-out:cubic-bezier(.16, 1, .3, 1);--ease-soft:cubic-bezier(.33, .85, .27, 1);--spring:cubic-bezier(.2, .9, .25, 1.06);--maxw:940px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}[data-light]{--bg-0:#fbfbfd;--bg-1:#fff;--card:#fff;--card-2:#fafafb;--card-bd:#e7e7ec;--card-bd-2:#dcdce3;--fg:#16161a;--sub:#52525b;--faint:#9a9aa6;--hair:#eeeef1;--accent:#4f6cff;--accent-ink:#3b54e0;--accent-dim:#4f6cff14;--glow:#4f6cff1a;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html,body{margin:0;padding:0}html{scroll-behavior:smooth}body{background:radial-gradient(1200px 620px at 50% -8%, var(--bg-1) 0%, var(--bg-0) 60%) fixed;min-height:100vh;font-family:var(--sans);color:var(--fg);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;transition:background .4s var(--ease-soft), color .4s var(--ease-soft);font-size:16px;line-height:1.6;overflow-x:hidden}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}a{color:inherit;text-decoration:none}.shell{max-width:var(--maxw);margin:0 auto;padding:0 24px}@media (max-width:560px){.shell{padding:0 18px}}.eyebrow{font-family:var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--faint);font-size:.68rem;font-weight:500}.accent-ink{color:var(--accent-ink)}.nav{justify-content:space-between;align-items:center;gap:16px;padding:26px 0 0;display:flex}.nav-brand{letter-spacing:-.02em;align-items:center;gap:11px;font-size:.98rem;font-weight:600;display:flex}.nav-mark{background:linear-gradient(150deg, var(--accent), color-mix(in oklab, var(--accent), #fff 22%));width:26px;height:26px;box-shadow:0 6px 18px -8px var(--glow);border-radius:8px;place-items:center;display:grid;position:relative;overflow:hidden}.nav-mark:after{content:"";background:radial-gradient(8px 8px at 70% 30%,#ffffff8c,#0000 70%);position:absolute;inset:0}.nav-links{align-items:center;gap:6px;display:flex}@media (max-width:560px){.nav-links .nav-ghost{display:none}}.btn{font:500 .82rem/1 var(--sans);color:var(--sub);background:var(--card);border:1px solid var(--card-bd);cursor:pointer;white-space:nowrap;transition:color .2s var(--ease-soft), border-color .2s var(--ease-soft), background .2s var(--ease-soft), transform .12s var(--ease-soft);border-radius:999px;align-items:center;gap:.45rem;padding:.56rem .92rem;display:inline-flex}.btn:hover{color:var(--fg);border-color:var(--card-bd-2)}.btn:active{transform:scale(.965)}.btn[aria-pressed=true]{color:var(--fg);border-color:var(--accent);background:var(--accent-dim)}.btn-ghost{background:0 0;border-color:#0000}.btn-ghost:hover{background:var(--card);border-color:var(--card-bd)}.btn-accent{color:#fff;background:var(--accent);border-color:var(--accent)}[data-light] .btn-accent{color:#fff}.btn-accent:hover{color:#fff;filter:brightness(1.06);border-color:var(--accent)}.btn:focus-visible,a:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.card{border:1px solid var(--card-bd);background:var(--card);border-radius:22px;box-shadow:0 28px 70px -40px #000000b3}[data-light] .card{box-shadow:0 24px 60px -42px #14142852}thinking-stream{--rfx-answer-font:1.24rem/1.58 var(--sans);display:block}textarea::-webkit-scrollbar{width:10px}textarea::-webkit-scrollbar-thumb{background:var(--card-bd-2);background-clip:padding-box;border:3px solid #0000;border-radius:999px}