* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  

  body {
    font-family: 'Nunito', sans-serif;
    background: #0a0f2c;
    color: white;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
  }
  

  .page-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #111;
    color: limegreen;
    text-align: center;
    padding: 10px;
    z-index: 1000;
    box-shadow: 0 0 15px limegreen;
  }
  .page-header h1 {
    font-size: 1.8rem;
  }
  

  .level-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../assets/images/cyber-matrix.gif') no-repeat center center;
    background-size: cover;
    opacity: 0.6;
    z-index: -2;
  }
  #levelCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
  }
  

  .bubble-bar-right {
    position: fixed;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1.5rem;
    z-index: 1000;
    overflow: visible;
  }
  .bubble {
    position: relative;
    width: 50px;
    height: 50px;
    background: #39FF14;
    border-radius: 50%;
    cursor: pointer;
    overflow: visible;
    transition: width 0.3s ease, border-radius 0.3s ease;
  }
  .bubble img {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    pointer-events: none;
  }
  .bubble .label {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%) translateX(-20px);
    font-size: 1rem;
    font-weight: bold;
    color: #000;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  .bubble:hover,
  .bubble.expanded {
    width: 160px;
    border-radius: 25px;
  }
  .bubble:hover .label,
  .bubble.expanded .label {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
  }
  .bubble:hover {
    box-shadow: 0 0 12px rgba(57, 255, 20, 0.8);
  }
  

  .home-button {
    position: fixed;
    top: 60px;
    right: 15px;
    background: limegreen;
    color: black;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 1rem;
    text-decoration: none;
    z-index: 1001;
    transition: 0.3s;
  }
  .home-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px limegreen;
  }
  

  .popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
  }
  .hidden {
    display: none !important;
  }
  .popup-content {
    background: #222;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    max-width: 600px;
    width: 90%;
    font-size: 1.5rem;
    position: relative;
    box-shadow: 0 0 15px cyan;
  }
  .popup-animated {
    opacity: 0;
    transform: scale(0.8);
  }
  .popup-btn {
    background: limegreen;
    color: black;
    border: none;
    border-radius: 5px;
    padding: 12px 20px;
    margin: 5px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: transform 0.3s;
  }
  .popup-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 10px limegreen;
  }
  .bigger-btn {
    font-size: 1.3rem;
    padding: 15px 25px;
  }
  

  .intro-popup {
    width: 700px;
    max-width: 90%;
  }
  .intro-flex {
    display: flex;
    gap: 20px;
    align-items: center;
  }
  .intro-hacker-img {
    max-width: 300px;
  }
  .typing-container {
    flex: 1;
  }
  .typing-text {
    font-size: 1.6rem;
    line-height: 1.8;
    margin-top: 10px;
    min-height: 100px;
  }
  

  .mode-popup h2 {
    font-size: 1.8rem;
  }
  .mode-popup p {
    font-size: 1.3rem;
  }
  

  .main-layout {
    position: absolute;
    top: 60px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    display: flex;
    gap: 10px;
    padding: 10px;
  }
  

  .left-window {
    flex: 2;
    background: #111;
    border: 2px solid limegreen;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
  }
  

  .right-window {
    width: 400px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-right: 100px;
  }
  

  .window {
    background: #222;
    border: 2px solid limegreen;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex: 1;
  }
  .window-titlebar {
    background: #333;
    padding: 8px;
    font-size: 1.2rem;
    text-align: center;
    border-bottom: 2px solid limegreen;
  }
  .window-content {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
    font-size: 1.3rem;
    line-height: 1.6;
    color: #fff;
  }
  .instructions-window .window-content {
    font-size: 1.6rem;
    text-align: center;
  }
  .instructions-window .window-content span.secret-name {
    color: yellow;
    font-weight: bold;
  }
  

  .task-content {
    text-align: center;
  }
  .task-content label {
    text-shadow: 0 0 8px #FFD700;
    color: #FFD700;
  }
  .submit-btn {
    background: limegreen;
    color: black;
    font-size: 1.3rem;
    padding: 12px 25px;
    border-radius: 8px;
    margin-top: 10px;
    cursor: pointer;
    transition: transform 0.2s;
  }
  .submit-btn:hover {
    animation: shake 0.5s;
    box-shadow: 0 0 15px limegreen;
  }
  @keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    50% { transform: translateX(3px); }
    75% { transform: translateX(-3px); }
    100% { transform: translateX(0); }
  }
  

.terminal-window {
    background: #011; 
    border: 2px solid limegreen;
    border-radius: 8px;
    position: absolute;
    top: 10px; left: 10px; right: 10px; bottom: 10px;
    display: flex;
    flex-direction: column;
  }
  

  .ascii-art {
    color: #0f0;
    margin: 10px;
    text-shadow: 0 0 5px #0f0;
  }
  

  .terminal-screen {
    flex: 1;
    overflow-y: auto;
    background: #011;
    color: #0f0;
    font-family: 'Courier New', monospace;
    font-size: 1.4rem;
    padding: 10px;
    margin-bottom: 10px;
  }
  

  .terminal-line {
    background: transparent; 
    margin: 5px 0;          
    display: flex;
    align-items: center;
    margin-bottom: 20px;
  }
  

  .terminal-line .prompt {
    color: #0f0;
    margin-right: 5px;
  }
  

  .terminal-line .terminal-input {
    color: #fff; 
    outline: none;
    border: none;
    background: transparent;
    cursor: text;
    white-space: nowrap;
  }
  

  .explorer-window {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    background: #224;
    border: 2px solid limegreen;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
  }


.popup-access-granted {
    background: #044; 
    color: #0f0;     
    animation: bounce 1s infinite alternate;
  }
  .popup-access-denied {
    background: #400; 
    color: #f00;      
    animation: shake2 0.5s infinite alternate;
  }
  

  @keyframes bounce {
    0% { transform: translateY(0); }
    100% { transform: translateY(-10px); }
  }
  @keyframes shake2 {
    0% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
    75% { transform: translateX(-5px); }
    100% { transform: translateX(0); }
  }
  

  .simple-explorer {
    padding: 15px;
    background: #111; 
    border: 2px solid limegreen;
    color: #fff;
    width: 100%;
    height: calc(100% - 50px);
    box-sizing: border-box;
    overflow-y: auto;
    font-size: 1.4rem;
  }
  .explorer-header {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 1.4rem;
  }
  .explorer-header button {
    background: #444;
    color: #fff;
    border: 1px solid limegreen;
    border-radius: 5px;
    padding: 10px 15px;
    margin-right: 10px;
    cursor: pointer;
    font-size: 1.2rem;
  }
  .current-path {
    font-size: 1.2rem;
    font-weight: bold;
    color: #FFD700;
  }
  .explorer-list {
    list-style: none;
    padding-left: 0;
  }
  .folder-item, .file-item {
    cursor: pointer;
    padding: 8px 0;
    display: flex;
    align-items: center;
    font-size: 1.4rem;
  }
  .folder-item {
    color: #FFD700;
  }
  .file-item {
    color: #ADFF2F;
  }
  .folder > ul {
    margin-left: 30px;
    list-style: none;
    display: none;
  }
  .folder.open > ul {
    display: block;
  }
  .folder-item i, .file-item i {
    margin-right: 12px;
    font-size: 1.6rem;
  }
  

  .file-viewer {
    position: absolute;
    top: 60px;
    left: 60px;
    width: 500px;
    height: 300px;
    background: #222;
    border: 2px solid limegreen;
    border-radius: 5px;
    z-index: 999;
    animation: pulseFileViewer 0.5s ease-in-out;
  }
  @keyframes pulseFileViewer {
    0% { transform: scale(0.8); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
  }
  .viewer-header {
    background: #333;
    padding: 10px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    border-bottom: 2px solid limegreen;
    font-size: 1.3rem;
  }
  #closeFileBtn {
    border: none;
    background: red;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 50%;
  }
  .viewer-content {
    padding: 15px;
    white-space: pre-wrap;
    overflow-y: auto;
    height: calc(100% - 55px);
    font-size: 1.3rem;
    line-height: 1.6;
    color: #0f0;
  }
  

  .final-popup {
    display: flex;
    align-items: center;
    gap: 20px;
    animation: typingEffect 0.5s ease-in-out;
  }
  .final-popup img {
    width: 150px;
    border-radius: 10px;
  }
  @keyframes typingEffect {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
  }