:root {
    --primary-color: #228B22; /* Forest Green */
    --accent-color: #006400; /* Dark Green */
    --secondary-color: #556B2F; /* Olive */
    --background-color: #F5F5F5; /* Off-White */
    --text-color: #333333;
    --header-bg: #FFFFFF;
    --footer-bg: #222222;
    --footer-text: #DDDDDD;
    --trust-blue: #0070ba; /* PayPal Blue */
}

body {
    font-family: 'Georgia', 'Times New Roman', serif; /* Retro feel */
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, nav a {
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 15px;
}

header {
    background-color: var(--header-bg);
    border-bottom: 4px solid var(--primary-color);
    padding: 1.5rem 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}

nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #555;
    font-weight: 600;
    font-size: 1.1rem;
}

nav a:hover {
    color: var(--primary-color);
}

.hero {
    background: url('/hero-bg.svg');
    padding: 60px 0;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

.hero h1 {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.hero p {
    font-size: 1.4rem;
    color: #666;
    font-style: italic;
}

.content-wrapper {
    background: #fff;
    padding: 40px;
    margin: 30px 0;
    border: 1px solid #ddd;
    box-shadow: 4px 4px 0px rgba(0,0,0,0.05); /* Retro shadow */
}

.btn-payment {
    background-color: var(--trust-blue);
    color: #fff;
    padding: 12px 24px;
    border-radius: 4px; /* Less rounded for retro/pro look */
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    min-width: 44px;
    min-height: 44px;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
}

.btn-payment:hover {
    background-color: #005ea6;
}

.revenue-bulkhead {
    background: #e8f5e9;
    border: 2px solid var(--primary-color);
    padding: 20px;
    text-align: center;
    margin: 40px 0;
}

.ad-container-leaderboard {
    background: #eee;
    min-height: 90px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px 0;
    border: 1px solid #ccc;
    color: #999;
}

.ad-container-sidebar {
    background: #eee;
    min-height: 600px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    border: 1px solid #ccc;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 40px 0;
    margin-top: 50px;
}

footer a {
    color: #aaa;
    text-decoration: none;
}

footer a:hover {
    color: #fff;
}

.ymyl-disclaimer {
    border-top: 1px solid #444;
    padding-top: 20px;
    font-size: 0.85rem;
    color: #888;
    margin-top: 20px;
    text-align: center;
}

.copyright {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9rem;
    color: #666;
}

/* Tools */
.tool-card {
    border: 2px solid var(--primary-color);
    padding: 20px;
    background: #fff;
    margin-bottom: 20px;
}

.tool-input-group input {
    padding: 10px;
    font-size: 1.2rem;
    width: 200px;
}

.tool-input-group button {
    padding: 10px 20px;
    font-size: 1.2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
}

/* Mobile */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    nav {
        margin-top: 15px;
    }
    nav a {
        margin: 0 10px;
        font-size: 1rem;
    }
}