:root{--bg-pure-black:#000;--bg-card:#0c0c0e;--bg-card-hover:#141418;--border-subtle:#ffffff14;--border-hover:#ffffff2e;--text-white:#fff;--text-secondary:#a1a1aa;--text-muted:#71717a;--color-download:#00f0ff;--color-upload:#b026ff;--color-ping:#0f8;--color-jitter:#ffb800;--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono:"JetBrains Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-pure-black);color:var(--text-white);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;min-height:100vh;overflow-x:hidden}.speedx-app{background:radial-gradient(circle at 50% 0,#111116 0%,#000 70%);flex-direction:column;min-height:100vh;display:flex;position:relative}.navbar-container{z-index:50;-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-subtle);background:#000000d9;position:sticky;top:0}.navbar-inner{justify-content:space-between;align-items:center;max-width:1100px;margin:0 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var(--border-subtle);color:var(--text-secondary);background:#ffffff0a;border-radius:16px;padding:5px 12px;font-size:.78rem;font-weight:600}.footer-container{border-top:1px solid var(--border-subtle);background:#000;margin-top:auto;padding:36px 20px 20px}.footer-inner{max-width:1100px;margin:0 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