:root {
    --primary-blue: #3b82f6;
    --primary-blue-dark: #1d4ed8;
    --primary-blue-light: #60a5fa;
    --accent-gold: #fbbf24;
    --accent-gold-dark: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #f9fafb;
    --bg-light: #f3f4f6;
    --bg-white: #ffffff;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --border-radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

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

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

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    background: linear-gradient(to right, var(--primary-blue), #1e3a8a);
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1000;
}

.nav-links {
    display: flex;
    width: 100%;
}

.nav a {
    color: var(--text-light);
    text-decoration: none;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-right: var(--spacing-xs);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    display: flex;
    align-items: center;
    font-weight: 500;
    transition: background-color 0.3s;
}

.nav a i {
    margin-right: var(--spacing-sm);
}

.nav a:hover, .nav a.active {
    background-color: var(--bg-white);
    color: var(--primary-blue);
}

.nav a.active {
    font-weight: 700;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    padding: var(--spacing-md) 0;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-light);
    border-radius: 3px;
    transition: all 0.3s;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Container styles */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Button styles */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-blue);
    color: var(--text-light);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.3s;
}

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

.btn-secondary {
    background-color: var(--accent-gold);
    color: var(--text-dark);
}

.btn-secondary:hover {
    background-color: var(--accent-gold-dark);
}

/* Form styles */
input, select, textarea {
    width: 100%;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
}

/* Card styles */
.card {
    background-color: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

/* Responsive styles */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
        margin: var(--spacing-md) 0;
    }
    
    .nav {
        height: auto;
        flex-direction: column;
        align-items: flex-start;
        padding: 0 var(--spacing-md);
    }
    
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        padding-bottom: var(--spacing-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav a {
        font-size: 1rem;
        padding: var(--spacing-sm) var(--spacing-md);
        width: 100%;
        margin-right: 0;
        border-radius: 0;
        border-left: 3px solid transparent;
    }
    
    .nav a:hover, .nav a.active {
        background-color: rgba(255, 255, 255, 0.1);
        color: var(--text-light);
        border-left: 3px solid var(--accent-gold);
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
}

/* Utility classes */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.text-center {
    text-align: center;
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.p-md {
    padding: var(--spacing-md);
}