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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #000;
    background: #fff;
}

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: #373737 url('./COMVd.jpeg') center center/cover no-repeat;
    filter: grayscale();
    transform: scale(150%);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.80);
    min-height: 100vh;
}

.loading {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
    padding: 40px;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #c00;
    font-weight: bold;
}

h2 {
    font-size: 1.8rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #000;
    font-weight: bold;
}

h3 {
    font-size: 1.3rem;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    color: #c00;
    font-weight: bold;
}

p {
    margin-bottom: 1rem;
}

strong {
    font-weight: bold;
    color: #c00;
}

/* Lists */
ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Links */
a {
    color: #c00;
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #000;
    text-decoration: underline;
}

/* Horizontal rules */
hr {
    border: none;
    border-top: 2px solid #c00;
    margin: 2rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    ul {
        margin-left: 1.5rem;
    }
}

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

    h2 {
        font-size: 1.3rem;
    }

    h3 {
        font-size: 1.1rem;
    }
}