:root{--bg: #0f172a;--bg-panel: #1e293b;--bg-card: #0f172a;--border: #334155;--text: #f1f5f9;--text-2: #94a3b8;--accent: #3b82f6;--accent-h: #2563eb;--green: #10b981;--yellow: #facc15}html{overflow:hidden;overscroll-behavior:none}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text);height:100vh;overflow:hidden;overscroll-behavior:none;touch-action:none;user-select:none;-webkit-user-select:none}.app-container{display:flex;flex-direction:column;height:100vh}.app-header{display:flex;justify-content:space-between;align-items:center;padding:.65rem 1.25rem;background:var(--bg-panel);border-bottom:1px solid var(--border);flex-shrink:0}.app-header 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