/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: sans-serif; 
    font-size: 18px;
    line-height: 1.6;
    color: #0e0e0e;
    background-color: #d4d4d4;
}

/* Header */
#header-logo {
    display: block;
    margin: auto;
}

header canvas {
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    pointer-events: none;
}

/* Main Content */
main {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

/* Typography */
p {
    margin-bottom: 1rem;
}

b, strong {
    font-weight: 600;
    color: #1a202c;
}

/* Links */
a {
    color: #ca002c;
    text-decoration: underline;
}

a:hover {
    background: #ca002c;
    color: #fff;
    text-decoration: none;
}

/* iframe */
iframe {
    width: 100%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}