/* Estilos para Actividad 6 - Funciones JavaScript */

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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    overflow: hidden;
}

.header {
    background: linear-gradient(45deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.functions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 20px;
    padding: 30px;
}

.function-card {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    border-left: 5px solid #4facfe;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.function-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.function-card h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.4rem;
    border-bottom: 2px solid #4facfe;
    padding-bottom: 10px;
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.input-group input, .input-group textarea {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.input-group input:focus, .input-group textarea:focus {
    outline: none;
    border-color: #4facfe;
}

.btn {
    background: linear-gradient(45deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    transition: transform 0.3s ease, opacity 0.3s ease;
    margin-right: 10px;
    margin-bottom: 10px;
}

.btn:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.btn:active {
    transform: translateY(0);
}

.result {
    margin-top: 15px;
    padding: 15px;
    border-radius: 5px;
    font-weight: bold;
    min-height: 50px;
    display: flex;
    align-items: center;
}

.result.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.result.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.result.info {
    background-color: #cce7ff;
    color: #004085;
    border: 1px solid #99d3ff;
}

.examples {
    margin-top: 15px;
    padding: 10px;
    background: #e9ecef;
    border-radius: 5px;
    font-size: 0.9rem;
}

.examples h4 {
    margin-bottom: 8px;
    color: #495057;
}

.examples ul {
    margin-left: 20px;
}

.examples li {
    margin-bottom: 3px;
    color: #6c757d;
}

@media (max-width: 768px) {
    .functions-grid {
        grid-template-columns: 1fr;
        padding: 15px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .function-card {
        padding: 20px;
    }
}