/*!
 Juan Carlos Ponce Campuzano
 26/Aug/2025
*/html,body{margin:0;height:100%;overflow:hidden;background:#0b1020}#app{position:relative;width:100vw;height:100vh}canvas{display:block}.hud{position:fixed;left:16px;top:16px;color:#eaf2ff;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial;font-size:14px;line-height:1.3}.hint{opacity:.8;max-width:340px}.badge{display:inline-block;padding:2px 8px;border-radius:999px;background:#1b2a4a;border:1px solid #2b3a5a;margin-right:8px;font-size:12px}.footer{position:fixed;right:16px;bottom:16px;color:#adbff5;font-size:.95rem;opacity:.7}.controls{position:fixed;left:16px;bottom:54px;background:#0b1020cc;padding:15px;border-radius:12px;border:1px solid rgba(100,150,255,.2);box-shadow:0 4px 20px #0000004d;color:#eaf2ff;font-family:ui-sans-serif,system-ui;width:200px;transition:transform .3s ease,opacity .3s ease}.controls.hidden{transform:translateY(calc(100% + 20px));opacity:0;pointer-events:none}.controls h3{margin:0 0 12px;font-size:16px;color:#b4d0ff}.controls button{width:100%;padding:8px;background:#2b4a8a;color:#fff;border:none;border-radius:6px;cursor:pointer;margin-top:5px;transition:background .3s}.controls button:hover{background:#3a5aaa}.toggle-container{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.toggle{position:relative;display:inline-block;width:50px;height:24px}.toggle input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:#1b2a4a;transition:.4s;border-radius:24px}.slider:before{position:absolute;content:"";height:16px;width:16px;left:4px;bottom:4px;background-color:#4a72da;transition:.4s;border-radius:50%}input:checked+.slider{background-color:#2b4a8a}input:checked+.slider:before{transform:translate(26px)}.instructions{margin-top:10px;margin-bottom:10px;padding:1px 10px;background:#1b2a4a80;border-radius:8px;font-size:14px}.selection-marker{position:absolute;width:12px;height:12px;border-radius:50%;background:#f36;border:2px solid white;box-shadow:0 0 8px #f36c;pointer-events:none;transform:translate(-50%,-50%);z-index:100;display:none}.dropdown{width:100%;padding:6px;margin-top:2px;margin-bottom:10px;background:#1b2a4a;color:#eaf2ff;border:1px solid #2b3a5a;border-radius:4px;font-family:ui-sans-serif,system-ui}.dropdown option{background:#0b1020}.toggle-controls-btn{position:fixed;left:16px;bottom:16px;background:#2b4a8a;color:#fff;border:none;border-radius:6px;padding:6px 12px;cursor:pointer;font-family:ui-sans-serif,system-ui;font-size:12px;z-index:1000}.toggle-controls-btn:hover{background:#3a5aaa}.key-shortcut{display:inline-block;background:#ffffff1a;padding:2px 6px;border-radius:4px;margin:0 4px;font-family:monospace}.info-modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#0b1020f2;border:1px solid rgba(100,150,255,.3);border-radius:12px;padding:20px;z-index:1001;box-shadow:0 4px 30px #00000080;color:#eaf2ff;font-family:ui-sans-serif,system-ui;min-width:300px;display:none;width:clamp(300px,80%,740px);max-height:80vh;overflow-y:auto;overflow-x:hidden;font-size:1.1rem}.info-modal .matheqn{margin-top:-.5rem;margin-bottom:1rem;overflow-y:hidden;overflow-x:auto}.info-modal h1,h2,h3{margin-top:0;color:#b4d0ff}.info-modal .section{margin-top:2rem;margin-bottom:1rem}.info-modal input{width:100%;padding:8px;margin:10px 0;background:#1b2a4a;color:#eaf2ff;border:1px solid #2b3a5a;border-radius:4px;font-family:ui-sans-serif,system-ui}.info-modal button{padding:8px 16px;background:#2b4a8a;color:#fff;border:none;border-radius:4px;cursor:pointer;margin-right:8px;font-size:1rem}.info-modal button:hover{background:#3a5aaa}.info-modal a{color:#50abd5}.info-modal a:hover{color:#a79ec3}hr{border:1px solid #aebcd5}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;z-index:1000;display:none}#small-screen-message{display:none;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:100%;height:100%;background:#0b1020;color:#eaf2ff;display:flex;justify-content:center;align-items:center;text-align:center;padding:1rem;z-index:2000;font-family:ui-sans-serif,system-ui,sans-serif}#small-screen-message .message-box{max-width:13rem;background:#1b2a4ae6;padding:20px;border-radius:12px;border:1px solid rgba(100,150,255,.3);box-shadow:0 4px 20px #0009}#loader{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#0b1020;display:flex;align-items:center;justify-content:center;z-index:3000;color:#eaf2ff;font-family:ui-sans-serif,system-ui,sans-serif;flex-direction:column}.loader-content{text-align:center}.spinner{border:4px solid rgba(255,255,255,.1);border-top:4px solid #4a72da;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin:20px auto}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}