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

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

/* Header */
header {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem 0;
    text-align: center;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
    color: #2c3e50;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

header p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

/* Main container */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

/* Form section */
.form-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    height: fit-content;
    position: sticky;
    top: 2rem;
}

.form-section h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-bottom: 3px solid #3498db;
    padding-bottom: 0.5rem;
}

.review-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

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

/* Reviews section */
.reviews-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.reviews-section h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-bottom: 3px solid #e74c3c;
    padding-bottom: 0.5rem;
}

.reviews-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Review cards */
.review-card {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid #3498db;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.review-card:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.review-header h3 {
    color: #2c3e50;
    font-size: 1.2rem;
}

.rating {
    font-size: 1.1rem;
}

.review-text {
    color: #555;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.review-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.reviewer-name {
    font-weight: bold;
}

.review-date {
    font-style: italic;
}

/* Footer */
footer {
    background: rgba(44, 62, 80, 0.9);
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

/* Responsive design */
@media (max-width: 768px) {
    main {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .form-section {
        position: static;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .review-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .review-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.3rem;
    }
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.review-card {
    animation: fadeInUp 0.5s ease-out;
}

/* Estilos adicionales basados en act01 */
.box {
    padding: 20px;
    margin: 10px;
    border-radius: 5px;
    text-align: center;
}

.blue {
    background-color: blue;
}

.green {
    background-color: lightgreen;
}

.red {
    background-color: red;
}