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auto;padding:64px 0 34px;grid-template-rows:minmax(0,1fr);overflow:hidden}.topbar{position:fixed;z-index:20;top:0;left:50%;width:min(1480px,calc(100vw - var(--page-gutter)));transform:translate(-50%);display:flex;height:56px;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 94%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.brand,.top-actions,.tool-button,.icon-button{display:inline-flex;align-items:center}.brand{gap:10px}.brand-mark{display:grid;width:36px;height:36px;place-items:center;border-radius:9px;color:#fff;background:#132018;font-weight:900}.brand-copy{display:grid;gap:1px}.brand-name{font-size:1.05rem;font-weight:850;letter-spacing:0}.brand-sub{color:var(--text-3);font-size:.74rem;font-weight:700}.top-actions{gap:8px}.tool-button,.icon-button{justify-content:center;min-height:36px;border:1px solid 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