:root {
    --primary-color: #1b4d3e; /* Deep Forest Green */
    --primary-light: #2c7a62;
    --primary-dark: #123329;
    --text-color: #333333;
    --bg-color: #f4f7f6;
    --white: #ffffff;
}

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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

/* Typography and Utilities */
.primary-text { color: var(--primary-color); }
.primary-bg { background-color: var(--primary-color); }
.text-white { color: var(--white); }
.text-center { text-align: center; }

/* Header */
.primary-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
}

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

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #a3d9c9;
}

/* Hero Section */
.hero {
    padding: 4rem 2rem;
    border-radius: 8px;
    margin-top: 2rem;
    text-align: center;
}

.hero h2 {
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.hero p {
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-color);
    font-weight: bold;
}

.btn-secondary:hover {
    background-color: #e2e8e5;
}

/* Components Demo */
.components-demo {
    margin: 3rem 0;
}

.components-demo h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-dark);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

/* Card */
.card {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
    border-top: 4px solid var(--primary-color);
}

.card h4 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.card p {
    margin-bottom: 1.5rem;
}

/* Alert */
.alert {
    background-color: #e8f0ec;
    border-left: 4px solid var(--primary-color);
    padding: 1rem;
    border-radius: 4px;
}

/* Footer */
.primary-footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 3rem;
}