:root{--bg: #0d1117;--bg-raised: #161b22;--bg-inset: #010409;--border: #30363d;--text: #e6edf3;--text-dim: #8b949e;--accent: #3fb950;--accent-dim: #2ea043;--danger: #f85149;--danger-bg: #2d1214;--font-sans: -apple-system, "Segoe UI", system-ui, sans-serif;--font-mono: ui-monospace, "Cascadia Code", "Consolas", "SFMono-Regular", monospace}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);min-height:100vh}#app{display:flex;flex-direction:column;min-height:100vh}header.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:baseline;gap:8px}.brand .mark{font-family:var(--font-mono);font-weight:600;font-size:18px;color:var(--accent)}.brand .name{font-weight:700;font-size:18px;letter-spacing:-.01em}.brand 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