:root {
    --primary-color: #6A5ACD;
    --secondary-color: #87CEEB;
    --neutral-color: #F5F5DC;
    --dark-accent: #2C3E50;
    --light-accent: #ECF0F1;
    --gradient-start: #87CEEB;
    --gradient-end: #6A5ACD;
}

body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--neutral-color);
    line-height: 1.6;
    padding: 20px;
}

h1, h2, h3, h4 {
    font-family: 'Futurist', sans-serif;
    color: var(--dark-accent);
    text-align: center;
    margin-top: 40px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    font-size: 1rem;
    margin: 15px 0;
    text-align: justify;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.item {
    background: var(--light-accent);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
}

pre {
    background: var(--dark-accent);
    color: var(--neutral-color);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.9rem;
}

code {
    font-family: 'Courier New', Courier, monospace;
    color: #FFD700;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    text-align: left;
}

th, td {
    border: 1px solid var(--dark-accent);
    padding: 10px;
    background: var(--light-accent);
}

th {
    background: var(--primary-color);
    color: var(--neutral-color);
}

.line {
    width: 100px;
    height: 2px;
    background-color: var(--neutral-color);
    animation: moveLine 2s infinite;
}

@keyframes moveLine {
    0% { transform: translateX(0); }
    50% { transform: translateX(50px); }
    100% { transform: translateX(0); }
}

.button {
    background-color: var(--primary-color);
    color: var(--neutral-color);
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.button:hover {
    background-color: var(--secondary-color);
    transform: scale(1.1);
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    p {
        font-size: 0.9rem;
    }

    pre {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    p {
        font-size: 0.85rem;
    }

    pre {
        font-size: 0.75rem;
    }

    .grid-container {
        grid-template-columns: 1fr;
    }
}