/* Modern Template Styles */
:root {
    --primary-color: #2563eb;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-alt: #f3f4f6;
    --link-color: #2563eb;
    --link-hover: #1d4ed8;
    --container-width: 1200px;
    --header-height: 80px;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
}

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

html {
    font-size: 16px;
    line-height: 1.5;
}

body.modern {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, sans-serif;
    color: var(--text-color);
    background: var(--bg-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Header & Navigation */
.site-header {
    background: var(--bg-alt);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 1em 0;
}

.main-nav {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    padding: 5em 0;
}

.main-nav ul {
    list-style: none;
    font-size: 12px;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
}

.main-nav li {
    position: relative;
}

.main-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    padding: 0.5rem var(--spacing-sm);
    position: relative;
}

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

.main-nav a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--link-color);
    transform: scaleX(0);
    transition: transform 0.2s ease;
}

.main-nav a:hover::after {
    transform: scaleX(1);
}

.main-nav li > ul {
    display: none;
    position: absolute;
    left: 0;
    background: var(--bg-alt);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) 0;
    margin-top: var(--spacing-sm);
    z-index: 10;
}

.main-nav li:hover > ul, 
.main-nav li > ul:hover {
    display: block;
}

.main-nav li > ul > li {
    width: 250px;
    padding: var(--spacing-sm);
}

.main-nav li > ul > li a {
    padding: var(--spacing-sm) var(--spacing-md);
    display: block;
    color: var(--text-color);
}

/* Adjustments for Hover and Active States */
.main-nav li:hover > a,
.main-nav li > ul > li:hover > a {
    color: var(--link-hover);
    background: var(--bg-color);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--spacing-lg) 0;
}

.content-article {
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--text-color);
}

.content-body {
    font-size: 1.125rem;
    line-height: 1.8;
}

.content-body h2 {
    font-size: 1.875rem;
    font-weight: 700;
    margin: var(--spacing-lg) 0 var(--spacing-md);
}

.content-body h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: var(--spacing-md) 0;
}

.content-body p {
    margin-bottom: var(--spacing-md);
}

.content-body a {
    color: var(--link-color);
    text-decoration: none;
    border-bottom: 1px solid currentColor;
    transition: color 0.2s ease;
}

.content-body a:hover {
    color: var(--link-hover);
}

.content-body ul,
.content-body ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.content-body li {
    margin-bottom: 0.5rem;
}

/* Footer */
.site-footer {
    background: var(--bg-alt);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

.copyright {
    text-align: center;
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --spacing-lg: 2rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .content-body {
        font-size: 1rem;
    }

    .main-nav ul {
        gap: var(--spacing-sm);
        flex-direction: column;
    }

    .main-nav li > ul {
        position: static;
        box-shadow: none;
    }
}

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

    .main-nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .main-nav ul {
        padding: 0 var(--spacing-sm);
    }
}