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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #ffeaa7, #fab1a0);
    min-height: 100vh;
}

header {
    background: linear-gradient(135deg, #e17055, #d63031);
    color: white;
    text-align: center;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

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

nav {
    background: white;
    padding: 1rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-btn {
    background: #74b9ff;
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    margin: 0 0.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: #0984e3;
    transform: translateY(-2px);
}

.nav-btn.active {
    background: #00b894;
}

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.content-section {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.hidden {
    display: none;
}

.filters {
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filters select {
    padding: 0.5rem 1rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}

.review-card {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.review-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

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

.review-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: #2d3436;
}

.review-rating {
    font-size: 1.1rem;
    color: #f39c12;
}

.review-meta {
    color: #636e72;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.review-text {
    color: #2d3436;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.review-author {
    color: #636e72;
    font-style: italic;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #2d3436;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #ddd;
    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: #74b9ff;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

button[type="submit"] {
    background: #00b894;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

button[type="submit"]:hover {
    background: #00a085;
    transform: translateY(-2px);
}

footer {
    background: #2d3436;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 3rem;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .filters {
        flex-direction: column;
    }
    
    .review-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    main {
        margin: 1rem auto;
    }
    
    .content-section {
        margin: 0 0.5rem;
    }
}