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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

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

header {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

h1 {
    font-size: 3em;
    color: #667eea;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitle {
    font-size: 1.3em;
    color: #666;
    margin-bottom: 20px;
}

.badge {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9em;
    margin: 5px;
}

.main-content {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

h2 {
    color: #667eea;
    font-size: 2em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid #667eea;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.feature-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 25px;
    border-radius: 15px;
    transition: transform 0.3s, box-shadow 0.3s;
    border-left: 5px solid #667eea;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.feature-card h3 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 1.3em;
}

.feature-card p {
    color: #555;
    font-size: 0.95em;
}

.buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.btn {
    padding: 15px 40px;
    border: none;
    border-radius: 50px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
    box-shadow: 0 5px 20px rgba(17, 153, 142, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(17, 153, 142, 0.6);
}

.btn-disabled {
    background: linear-gradient(135deg, #bdc3c7 0%, #2c3e50 100%);
    color: white;
    cursor: not-allowed;
    opacity: 0.7;
}

.info-section {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 15px;
    margin: 20px 0;
}

.info-section h3 {
    color: #667eea;
    margin-bottom: 15px;
}

.info-section p {
    margin-bottom: 10px;
}

footer {
    text-align: center;
    color: white;
    padding: 20px;
    margin-top: 30px;
}

footer a {
    color: #ffd700;
    text-decoration: none;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2em;
    }

    .subtitle {
        font-size: 1em;
    }

    .main-content {
        padding: 20px;
    }

    .btn {
        padding: 12px 30px;
        font-size: 1em;
    }
}