/* Base Styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-bg: #f8f9fa;
    --dark-bg: #2c3e50;
    --text-color: #333;
    --light-text: #f8f9fa;
    --border-radius: 4px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1.5rem;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
}

.small {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* Header */
header {
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--box-shadow);
}

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

header h1 {
    font-size: 1.5rem;
    margin-bottom: 0;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    color: var(--light-text);
    text-decoration: none;
    transition: opacity 0.3s;
}

nav ul li a:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 6rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero .lead {
    font-size: 1.5rem;
    max-width: 800px;
    margin: 0 auto 2rem;
}

/* Sections */
.section {
    padding: 5rem 0;
}

.alt-bg {
    background-color: var(--light-bg);
}

.two-column {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.two-column > div {
    flex: 1;
}

/* Placeholder for images */
.image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-box {
    background-color: #e9ecef;
    border: 1px dashed #adb5bd;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    width: 100%;
    height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Resources Grid */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.resource-card {
    background-color: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 1.5rem;
    transition: transform 0.3s;
}

.resource-card:hover {
    transform: translateY(-5px);
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #2980b9;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 2rem 0;
    text-align: center;
}

footer a {
    color: var(--light-text);
}

/* Responsive */
@media (max-width: 768px) {
    .two-column {
        flex-direction: column;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero .lead {
        font-size: 1.25rem;
    }
    
    header .container {
        flex-direction: column;
    }
    
    nav ul {
        margin-top: 1rem;
    }
    
    nav ul li {
        margin-left: 1rem;
        margin-right: 1rem;
    }
}