:where(.nn-hdr,.nn-hdr-scrim,.nn-hdr-sheet,.nn-hdr-user,.nn-hdr-user-menu,[data-user]){--page-max:1180px;--page-pad-x:clamp(20px, 4vw, 40px);--font-header:'Unbounded',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;--card:#ffffff;--bg-elev:#f3f5f7;--text:#1a1a1a;--text-muted:#6b6b6b;--text-faint:#9aa0a6;--border:#e1e4e8;--border-soft:#edf0f3;--accent:#0072ff;--accent-hover:#0056cc;--accent-light:#e6f3ff;--accent-soft:rgba(0, 114, 255, 0.08);--radius-sm:10px;--radius:16px;--radius-card:clamp(20px, 2.4vw, 28px);--radius-pill:999px;--shadow-card:rgba(14, 63, 126, 0.06) 0px 0px 0px 1px,rgba(42, 51, 70, 0.03) 0px 1px 1px -0.5px,rgba(42, 51, 70, 0.04) 0px 2px 2px -1px,rgba(42, 51, 70, 0.04) 0px 3px 3px -1.5px,rgba(42, 51, 70, 0.03) 0px 5px 5px -2.5px,rgba(42, 51, 70, 0.03) 0px 10px 10px -5px,rgba(42, 51, 70, 0.03) 0px 24px 24px -8px;--btn-gradient:linear-gradient(180deg, #4c9aff 0%, var(--accent) 45%, var(--accent-hover) 100%);--btn-edge:#00387e;--btn-shadow:inset 0 -3px 0 var(--btn-edge),var(--shadow-card);--btn-shadow-float:inset 0 -3px 0 var(--btn-edge),0 8px 20px rgba(0, 56, 126, 0.22);--dur-fast:180ms;--dur-base:240ms;--ease-hover:ease;--ease-out-quart:cubic-bezier(0.165, 0.84, 0.44, 1);--ease-spring:cubic-bezier(0.34, 1.56, 0.64, 1);--nn-hdr-glass:rgba(250, 251, 252, 0.82)}:where(html[data-theme=dark]) :where(.nn-hdr,.nn-hdr-scrim,.nn-hdr-sheet,.nn-hdr-user,.nn-hdr-user-menu,[data-user]){--card:rgb(30, 30, 30);--bg-elev:rgb(38, 38, 38);--text:#ffffff;--text-muted:rgb(180, 180, 180);--text-faint:rgb(130, 130, 130);--border:rgb(48, 48, 48);--border-soft:rgba(255, 255, 255, 0.08);--accent-soft:rgba(0, 114, 255, 0.16);--nn-hdr-glass:rgba(18, 18, 18, 0.82)}.nn-hdr{position:sticky;top:0;z-index:50;background:var(--nn-hdr-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.nn-hdr-inner{padding:14px var(--page-pad-x);display:flex;align-items:center;justify-content:space-between;gap:24px}.nn-hdr-brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-header);font-weight:800;font-size:clamp(.8125rem, .65rem + .66vw, 1rem);color:var(--text);text-decoration:none;white-space:nowrap;flex:1 1 0}.nn-hdr-brand img{width:34px;height:34px;display:block}@media (max-width:430px){.nn-hdr-brand span{display:none}}.nn-hdr-end{flex:1 1 0;display:flex;align-items:center;justify-content:flex-end;gap:10px}.nn-hdr-nav{display:flex;align-items:center;gap:4px}.nn-hdr-nav a{position:relative;padding:5px;margin:0 10px;color:var(--text-muted);font-size:.95rem;font-weight:300;text-decoration:none;transition:color var(--dur-fast) var(--ease-hover)}.nn-hdr-nav a::after{content:'';position:absolute;left:5px;right:5px;bottom:2px;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:right center;transition:transform var(--dur-fast) var(--ease-out-quart)}.nn-hdr-nav a:focus-visible,.nn-hdr-nav a:hover{color:var(--accent)}.nn-hdr-nav a:focus-visible::after,.nn-hdr-nav a:hover::after{transform:scaleX(1);transform-origin:left center}.nn-hdr-brand:focus-visible,.nn-hdr-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.nn-hdr-nav a.is-current{color:var(--accent);background:var(--accent-soft);border-radius:var(--radius-sm);corner-shape:squircle;padding:5px 10px;margin:0 5px}.nn-hdr-nav a.is-current::after{display:none}.nn-hdr-cta{--arrow-w:15px;--arrow-gap:8px;position:relative;display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 22px;border-radius:var(--radius-pill);corner-shape:squircle;color:#fff;font-size:15px;font-weight:600;line-height:1;text-decoration:none;white-space:nowrap;background:var(--btn-gradient);box-shadow:var(--btn-shadow-float);transition-property:background,transform,box-shadow;transition-duration:var(--dur-fast);transition-timing-function:var(--ease-out-quart)}.nn-hdr-cta::after{content:'';display:inline-block;width:0;height:var(--arrow-w);margin-left:0;background-color:currentColor;-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M5 12h14'/><path d='m12 5 7 7-7 7'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M5 12h14'/><path d='m12 5 7 7-7 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var(--accent);outline-offset:2px}.nn-hdr-menu-btn{display:none;align-items:center;justify-content:center;width:42px;height:42px;padding:0;border:0;border-radius:var(--radius-sm);corner-shape:squircle;background:0 0;color:var(--text);cursor:pointer;transition:background var(--dur-fast) var(--ease-hover),transform var(--dur-fast) var(--ease-out-quart)}.nn-hdr-menu-btn svg{width:26px;height:26px;display:block}.nn-hdr-menu-btn:active{background:var(--accent-soft);transform:scale(.92)}.nn-hdr-menu-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media (max-width:850px){.nn-hdr-nav{display:none}.nn-hdr-menu-btn{display:inline-flex}}.nn-hdr-end{position:relative}.nn-hdr-user{width:34px;height:34px;padding:0;border:0;border-radius:50%;corner-shape:superellipse(2.5);background:0 0;cursor:pointer;flex:none;transition:box-shadow var(--dur-fast) var(--ease-hover),transform var(--dur-fast) var(--ease-out-quart)}.nn-hdr-user:hover{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}.nn-hdr-user[aria-expanded=true]{box-shadow:0 0 0 2px var(--card),0 0 0 4px var(--accent)}.nn-hdr-user:active{transform:scale(.94)}.nn-hdr-user:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.nn-hdr-user-face{display:grid;place-items:center;width:100%;height:100%;border-radius:50%;corner-shape:superellipse(2.5);overflow:hidden;background:var(--accent-light);color:var(--accent);font-family:var(--font-header);font-size:14px;font-weight:600;user-select:none}.nn-hdr-user-face img{width:100%;height:100%;object-fit:cover;display:block;opacity:0;transition:opacity var(--dur-base) var(--ease-hover)}.nn-hdr-user-face img.is-ready{opacity:1}.nn-hdr-user-face--lg{width:44px;height:44px;font-size:18px;flex:none}.nn-hdr-user.is-loading{pointer-events:none}.nn-hdr-user.is-loading .nn-hdr-user-face{background:linear-gradient(90deg,var(--bg-elev) 25%,var(--card) 44%,var(--bg-elev) 63%);background-size:300% 100%;animation:nn-hdr-shimmer 1.3s var(--ease-hover) infinite}@keyframes nn-hdr-shimmer{from{background-position:100% 0}to{background-position:-100% 0}}.nn-hdr-user-menu{position:absolute;top:calc(100% + 10px);right:0;z-index:60;width:300px;max-height:75vh;overflow-y:auto;overscroll-behavior:contain;padding:8px;background:var(--card);border:1px solid var(--border-soft);border-radius:var(--radius);corner-shape:squircle;box-shadow:var(--shadow-card);transform-origin:top right;opacity:0;transform:translateY(-6px) scale(.97);pointer-events:none;transition:opacity 140ms var(--ease-hover),transform 140ms var(--ease-out-quart)}.nn-hdr-user-menu.is-open{opacity:1;transform:translateY(0) scale(1);pointer-events:auto;transition:opacity 180ms var(--ease-hover),transform var(--dur-base) var(--ease-spring)}@media (max-width:850px){.nn-hdr-user-menu{display:none}}.nn-hdr-user-id{display:flex;align-items:center;gap:12px;padding:10px 12px;min-width:0}.nn-hdr-user-id-text{min-width:0}.nn-hdr-user-name{font-size:15px;font-weight:600;color:var(--text);line-height:1.3}.nn-hdr-user-pill{display:inline-block;margin-left:8px;padding:2px 8px 3px;border-radius:var(--radius-pill);corner-shape:squircle;background:var(--accent-soft);color:var(--accent);font-size:10.5px;font-weight:600;letter-spacing:.01em;vertical-align:2px;white-space:nowrap}.nn-hdr-user-email{font-size:12.5px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nn-hdr-user-since{margin-top:2px;font-size:11.5px;color:var(--text-faint)}.nn-hdr-user-sep{border:0;border-top:1px solid var(--border-soft);margin:6px 4px}.nn-hdr-user-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius-sm);corner-shape:squircle;font-size:14px;font-weight:500;color:var(--text);text-decoration:none;-webkit-tap-highlight-color:transparent;transition:background var(--dur-fast) var(--ease-hover)}.nn-hdr-user-item svg{width:16px;height:16px;flex:none;color:var(--text-muted)}.nn-hdr-user-item:hover{background:var(--bg-elev)}.nn-hdr-user-item:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}.nn-hdr-user-item.is-danger{color:#d1242f}.nn-hdr-user-item.is-danger svg{color:currentColor}.nn-hdr-user-item.is-danger:hover{background:rgba(209,36,47,.08)}.nn-hdr-sheet--profile .nn-hdr-user-id{padding:4px 28px 10px}.nn-hdr-sheet--profile .nn-hdr-user-sep{margin:0 22px 4px}.nn-hdr-sheet--profile .nn-hdr-user-item{font-size:17px;gap:14px}.nn-hdr-sheet--profile .nn-hdr-user-item svg{width:19px;height:19px}.nn-hdr-sheet--profile .nn-hdr-user-item.is-danger:active{background:rgba(209,36,47,.08);color:#d1242f}.nn-hdr-scrim{--open:300ms;--close:190ms;position:fixed;inset:0;z-index:220;background:rgba(9,14,24,.42);opacity:0;visibility:hidden;transition:opacity var(--close) var(--ease-out-quart),visibility 0s linear var(--close)}.nn-hdr-scrim.is-open{opacity:1;visibility:visible;transition:opacity var(--open) var(--ease-out-quart)}.nn-hdr-sheet{--open:300ms;--close:190ms;position:fixed;left:0;right:0;bottom:0;z-index:221;display:flex;flex-direction:column;max-height:75vh;max-height:75dvh;background:var(--card);border-radius:var(--radius-card) var(--radius-card) 0 0;corner-shape:squircle;box-shadow:inset 0 1px 0 rgba(255,255,255,.7),0 -12px 40px rgba(14,63,126,.18);padding-bottom:calc(14px + env(safe-area-inset-bottom));transform:translateY(100%);visibility:hidden;will-change:transform;transition:transform var(--close) var(--ease-out-quart),visibility 0s linear var(--close)}.nn-hdr-sheet.is-open{transform:translateY(0);visibility:visible;transition:transform var(--open) var(--ease-out-quart)}.nn-hdr-sheet:focus{outline:0}.nn-hdr-sheet-grab{position:relative;width:40px;height:4px;margin:10px auto 6px;border-radius:var(--radius-pill);background:var(--border);flex:none}.nn-hdr-sheet-grab::before{content:'';position:absolute;inset:-14px 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a:active{background:var(--accent-soft);color:var(--accent)}.nn-hdr-sheet-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}.nn-hdr-sheet-nav a.is-current{color:var(--accent);background:var(--accent-soft)}.nn-hdr-sheet-end{flex:none;padding:12px 18px 4px;border-top:1px solid var(--border-soft)}.nn-hdr-sheet-cta{display:flex;align-items:center;justify-content:center;gap:8px;height:52px;border-radius:var(--radius-pill);corner-shape:squircle;color:#fff;font-size:16px;font-weight:600;text-decoration:none;background:var(--btn-gradient);box-shadow:var(--btn-shadow);-webkit-tap-highlight-color:transparent;transition:transform var(--dur-fast) var(--ease-out-quart)}.nn-hdr-sheet-cta:active{transform:scale(.97)}.nn-hdr-sheet-cta::after{content:'';width:14px;height:14px;background-color:currentColor;-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' 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nn-shine-text{0%{background-position:150%}20%{background-position:-50%}100%{background-position:-50%}}.nn-hdr-nav a.nn-shine-text{color:transparent}.nn-hdr-nav a.nn-shine-text:focus-visible,.nn-hdr-nav a.nn-shine-text:hover{color:var(--accent);background-image:none;animation:none}.nn-new-tag{font-weight:600;color:#fff;background:linear-gradient(135deg in oklab,#0072ff,#00c6ff);margin-left:5px;font-size:.62rem;padding:4px 7px;border-radius:var(--radius-pill);corner-shape:squircle}@media (prefers-reduced-motion:reduce){.nn-hdr-cta,.nn-hdr-cta::after,.nn-hdr-menu-btn,.nn-hdr-nav a,.nn-hdr-nav a::after,.nn-hdr-scrim,.nn-hdr-sheet,.nn-hdr-sheet-cta,.nn-hdr-sheet-nav a,.nn-hdr-user,.nn-hdr-user-face img,.nn-hdr-user-item,.nn-hdr-user-menu{transition:none}.nn-hdr-user.is-loading .nn-hdr-user-face{animation:none}.nn-shine-text{animation:none;color:var(--text-muted);background:0 0}.nn-hdr-fade{transition:none}.nn-hdr-cta:hover{transform:none}}