:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.app{max-width:1200px;margin:0 auto;padding:1.5rem;min-height:100vh}.header{margin-bottom:1.5rem;text-align:left}.header h1{font-size:1.5rem;margin:0 0 .25rem}.header p{color:#888;font-size:.95rem;margin:0}.error{background:#3f1f1f;color:#f87171;padding:.75rem 1rem;border-radius:8px;margin-bottom:1rem}.loading{color:#888;padding:2rem}.controls{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.controls label{font-size:.9rem;color:#aaa}.controls select{flex:1;max-width:100%;padding:.5rem .75rem;font-size:.95rem;background:#1a1a1a;border:1px solid #333;border-radius:6px;color:#eee}.market-info{margin-bottom:1rem;padding:.5rem 0;font-size:.9rem;color:#aaa}.chart-wrap{background:#1a1a1a;border-radius:10px;padding:1rem;border:1px solid #333;position:relative}.chart-container{position:relative;width:100%}.chart-container:fullscreen{background:#1a1a1a;padding:1rem;display:flex;flex-direction:column;align-items:center;justify-content:center}.chart-fullscreen-btn{position:absolute;top:8px;right:8px;z-index:10;width:36px;height:36px;padding:0;display:flex;align-items:center;justify-content:center;background:#2a2a2a;border:1px solid #444;border-radius:6px;color:#ccc;cursor:pointer;transition:background .15s,color .15s}.chart-fullscreen-btn:hover{background:#333;color:#fff}.chart-empty{padding:3rem 2rem;text-align:center;color:#888;background:#1a1a1a;border-radius:10px;border:1px solid #333}