/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4c51bf;
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: #4c51bf;
}

/* Main content */
.main {
    flex: 1;
    padding: 2rem 0;
}

/* Page header */
.page-header {
    text-align: center;
    margin-bottom: 3rem;
    color: white;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-description {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Info section */
.info-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.info-section h3 {
    color: #4c51bf;
    margin-bottom: 1rem;
    font-weight: 600;
}

.info-section ul {
    list-style: none;
    padding-left: 0;
}

.info-section li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.info-section li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #48bb78;
    font-weight: bold;
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2rem 0;
    text-align: center;
    margin-top: auto;
}

.footer p {
    color: #4a5568;
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

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

    .container {
        padding: 0 15px;
    }
}

/* Utilities */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }