body { background-color: #0f1117; color: #e2e8f0; font-family: 'Inter', sans-serif; }
        .neon-glow { color: #00f2ff; text-shadow: 0 0 10px rgba(0, 242, 255, 0.5), 0 0 20px rgba(0, 242, 255, 0.3); }
        .neon-border { border: 1px solid rgba(0, 242, 255, 0.3); box-shadow: 0 0 15px rgba(0, 242, 255, 0.1); }
        .progress-ring { transform: rotate(-90deg); }
        .progress-ring__circle { transition: stroke-dashoffset 0.35s; transform-origin: 50% 50%; stroke: #00f2ff; }
        .glass-card { background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(10px); }
        .mono { font-family: 'JetBrains Mono', monospace; }
        button:active { transform: scale(0.95); }
        .mode-active { background: rgba(0, 242, 255, 0.2); color: #00f2ff; border-color: #00f2ff; }