body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f8f9fa;
}

header {
    padding: 1rem 2rem;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-sizing: border-box;
}

.auth-buttons {
    display: flex;
    gap: 1rem;
}

.auth-buttons button {
    padding: 0.5rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.auth-buttons button:first-child {
    background-color: #007bff;
    color: white;
}

.auth-buttons button:last-child {
    background-color: transparent;
    border: 1px solid #007bff;
    color: #007bff;
}

.hero {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: #fff;
}

.hero h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.stat-card h3 {
    font-size: 2rem;
    color: #007bff;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: #666;
    margin: 0;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 400px;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
}

.form-group input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

.modal-content button {
    width: 100%;
    padding: 0.75rem;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .hero {
        padding: 6rem 1rem 3rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .stats {
        padding: 2rem 1rem;
    }
}