* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Fira Code', 'Courier New', monospace;
}

body {
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a1a 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    color: #00ff00;
    overflow-x: hidden;
    font-size: 16px;
    line-height: 1.5;
}

.terminal {
    width: 100%;
    max-width: 900px;
    background-color: #0a0a0a;
    border-radius: 8px;
    box-shadow: 
        0 0 30px rgba(0, 255, 0, 0.2),
        0 0 60px rgba(0, 0, 0, 0.8),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid #00aa00;
    overflow: hidden;
    position: relative;
}

.terminal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 28px;
    background:
        repeating-linear-gradient(
            0deg,
            rgba(0, 30, 0, 0.1) 0px,
            rgba(0, 30, 0, 0.1) 1px,
            transparent 1px,
            transparent 2px
        );
    box-shadow: 
        0 0 15px rgba(0, 255, 0, 0.3),
        inset 0 0 20px rgba(0, 255, 0, 0.1);
    border-bottom: 1px solid #00aa00;
    display: flex;
    align-items: center;
    padding-left: 15px;
}

.terminal::after {
    content: '● ○ ○';
    position: absolute;
    top: 8px;
    left: 15px;
    color: #ff5f56;
    font-size: 12px;
    letter-spacing: 3px;
    text-shadow: 0 0 5px rgba(255, 95, 86, 0.5);
}

#output {
    padding: 40px 25px 20px;
    min-height: 400px;
    max-height: 70vh;
    overflow-y: auto;
    line-height: 1.6;
}

#output p {
    margin-bottom: 15px;
    white-space: pre-wrap;
    word-wrap: break-word;
    text-shadow: 0 0 8px rgba(0, 255, 0, 0.4);
    animation: fadeIn 0.3s ease-out;
    color: #00ff00;
    position: relative;
}

#output p:empty::before {
    content: ' ';
    display: inline-block;
    width: 8px;
    height: 16px;
    background-color: #00ff00;
    vertical-align: middle;
    margin-right: 5px;
    animation: blink 1s infinite;
}

/* Removed invalid :contains selector */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

#output::-webkit-scrollbar {
    width: 10px;
}

#output::-webkit-scrollbar-track {
    background: rgba(0, 30, 0, 0.3);
}

#output::-webkit-scrollbar-thumb {
    background: #00aa00;
    border-radius: 5px;
}

.input-line {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    background-color: rgba(0, 20, 0, 0.3);
    border-top: 1px solid #008800;
    position: relative;
}

.input-line::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        #00ff00 20%, 
        #00ff00 80%, 
        transparent 100%);
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
}

.prompt {
    color: #00ff00;
    font-weight: bold;
    margin-right: 12px;
    text-shadow: 0 0 5px currentColor;
    user-select: none;
    white-space: nowrap;
}

.prompt::after {
    content: '▋';
    animation: blink 1s infinite;
    color: #00ff00;
    margin-left: 3px;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

#input {
    flex: 1;
    background: transparent;
    border: none;
    color: #00ff00;
    font-size: 16px;
    outline: none;
    caret-color: #00ff00;
    text-shadow: 0 0 5px rgba(0, 255, 0, 0.5);
}

#input::placeholder {
    color: #008800;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .terminal {
        border-radius: 0;
        max-width: 100%;
    }
    
    #output {
        padding: 35px 15px 15px;
        min-height: 300px;
        font-size: 14px;
    }
    
    .input-line {
        padding: 12px 15px;
    }
    
    body {
        padding: 10px;
    }
}