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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 300;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

main {
    padding: 3rem 0;
}

.section {
    background: white;
    margin: 2rem 0;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 25px rgba(0,0,0,0.12);
}

.section h2 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.section p {
    margin-bottom: 1rem;
    color: #666;
}

.interactive-section {
    text-align: center;
    background: linear-gradient(45deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.interactive-section h2 {
    color: white;
}

.btn {
    background: white;
    color: #f5576c;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    margin: 1rem 0;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.hidden-content {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    display: none;
    animation: fadeIn 0.5s ease;
}

.hidden-content.show {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .section {
        margin: 1rem 0;
        padding: 1.5rem;
    }

    .section h2 {
        font-size: 1.5rem;
    }

    main {
        padding: 2rem 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    h1 {
        font-size: 1.8rem;
    }

    .section {
        padding: 1rem;
    }
}