body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;

    /* Fallback color + marble background */
    background-color: #f4f6f9;
    background-image: url("marble.jpg");
    background-repeat: repeat;
    background-position: top left;
    background-size: auto;

    color: #222;
    line-height: 1.6;
}

header {
    background: #111;
    color: #fff;
    padding: 70px 20px;
    text-align: center;
}

main {
    max-width: 900px;
    margin: 60px auto;
    padding: 0 20px;
}

section {
    margin-bottom: 70px;
}

h2 {
    margin-bottom: 15px;
    border-bottom: 2px solid #e5e5e5;
    padding-bottom: 8px;
}

.pearls {
    list-style-image: url("bullet16x16.png");
    padding-left: 20px;
}

.pearls li {
    padding-left: 0;
}

.github-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #000000;
    color: #ffffff;
    padding: 10px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.2s ease;
}

.github-button svg {
    width: 38px;
    height: 38px;
}

.download-buttons {
  display: flex;
  gap: 8px;
}

.download-buttons a {
  display: inline-block;
  text-decoration: none;
}

.profile-link {
    display: inline-block;
    margin-top: 18px;
}

.avatar {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.profile-link:hover .avatar {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.30);
}

.header-logo {
    display: block;
    margin: 0 auto 14px auto;
    color: rgba(255, 255, 255, 0.92);
}

.header-logo svg {
    width: 80px;
    height: 80px;
    display: block;
    margin: 0 auto;
    opacity: 0.95;
}

footer {
    background: #111;
    color: #fff;
    text-align: center;
    padding: 40px 20px;
}