:root{--bg:#0b0f14;--surface:#131a22;--surface-2:#1b2530;--border:#263341;--text:#e6edf3;--muted:#9aa5b1;--accent:#4f9cf9;--up:#3fb950;--down:#f85149;--radius:14px;--nav-h:58px;color-scheme:dark}*{box-sizing:border-box}body,html{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent)}.landing{min-height:100%;display:flex;flex-direction:column}.landing__hero,.landing__nav,.landing__section{width:100%;max-width:960px;margin:0 auto;padding:0 20px}.landing__nav{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{font-weight:800;font-size:20px;letter-spacing:-.02em}.brand__dot{color:var(--accent)}.landing__hero{padding-top:48px;padding-bottom:48px}.landing__hero h1{font-size:clamp(32px,7vw,56px);line-height:1.05;letter-spacing:-.03em;margin:0 0 16px}.landing__hero p{font-size:clamp(16px,2.4vw,20px);color:var(--muted);max-width:60ch;margin:0 0 28px}.cta-row{display:flex;gap:12px;flex-wrap:wrap}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:12px 18px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px}.btn--primary{background:var(--accent);border-color:var(--accent);color:#06131f}.btn--ghost{background:transparent}.btn:hover{filter:brightness(1.08)}.features{display:grid;grid-template-columns:1fr;grid-gap:16px;gap:16px;padding-bottom:56px}@media (min-width:720px){.features{grid-template-columns:repeat(3,1fr)}}.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.feature h3{margin:0 0 8px;font-size:17px}.feature p{margin:0;color:var(--muted);font-size:14px;line-height:1.5}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;max-width:420px}.auth-card h2{margin:0 0 16px;font-size:18px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.field label{font-size:13px;color:var(--muted)}.field input{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--text);font-size:15px}.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;margin:16px 0}.divider:after,.divider:before{content:"";height:1px;background:var(--border);flex:1 1}.landing__footer{margin-top:auto;border-top:1px solid var(--border);color:var(--muted);font-size:13px;text-align:center;padding:20px}.feed{max-width:640px;margin:0 auto;min-height:100%;padding-bottom:var(--nav-h)}.feed__bar{position:-webkit-sticky;position:sticky;top:0;z-index:10;justify-content:space-between;gap:12px;padding:12px 16px;background:rgba(11,15,20,.85);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.feed__bar,.feed__scope{display:flex;align-items:center}.feed__scope{gap:8px;min-width:0}.feed__scope select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:8px 10px;font-size:14px;max-width:60vw}.linkish{background:none;border:none;color:var(--accent);font-size:13px;cursor:pointer;padding:6px}.feed__scroller{height:calc(100vh - 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