:root {
    --primary-color: #2563eb;
    --text-color: #333333;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
}

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

body {
    font-family: system-ui, -apple-system, sans-serif;
    color: var(--text-color);
    background-color: var(--light-bg);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

/* Header & Nav */
.site-header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
}

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

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Content Layout */
.content-area {
    flex: 1;
    padding: 3rem 0;
}

.hero {
    text-align: center;
    padding: 4rem 1rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.features {
    display: flex;
    gap: 1.5rem;
}

.feature-box {
    flex: 1;
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.feature-box h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* Footer */
.site-footer {
    background: var(--white);
    border-top: 1px solid var(--border-color);
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.9rem;
    color: #64748b;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .header-flex, .features {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}