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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f0f2f5;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: linear-gradient(135deg, #1a237e, #0d47a1);
    color: white;
    padding: 20px 30px;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

header h1 {
    font-size: 24px;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    background: rgba(255,255,255,0.1);
    border-radius: 5px;
    margin-left: 10px;
    transition: background 0.3s;
}

nav a:hover {
    background: rgba(255,255,255,0.2);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.card h3 {
    color: #1a237e;
    margin-bottom: 10px;
    font-size: 18px;
}

.card .info {
    margin: 8px 0;
    font-size: 14px;
}

.card .badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
}

.badge-ativo { background: #4caf50; color: white; }
.badge-inativo { background: #ff9800; color: white; }
.badge-vendido { background: #f44336; color: white; }

.card-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    padding: 8px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary { background: #1a237e; color: white; }
.btn-primary:hover { background: #0d47a1; }

.btn-success { background: #4caf50; color: white; }
.btn-success:hover { background: #388e3c; }

.btn-danger { background: #f44336; color: white; }
.btn-danger:hover { background: #d32f2f; }

.btn-warning { background: #ff9800; color: white; }
.btn-warning:hover { background: #f57c00; }

.form-section {
    background: white;
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.form-section h2 {
    color: #1a237e;
    margin-bottom: 20px;
    font-size: 20px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

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

.form-group label {
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 14px;
}

.form-group input,
.form-group select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #1a237e;
    box-shadow: 0 0 5px rgba(26, 35, 126, 0.3);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
}

.table-container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    overflow-x: auto;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background: #1a237e;
    color: white;
    padding: 12px;
    text-align: left;
}

td {
    padding: 10px 12px;
    border-bottom: 1px solid #eee;
}

tr:hover {
    background: #f5f5f5;
}

.search-box {
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
}

.search-box input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.recommendations {
    margin-top: 30px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.recommendation-card {
    border-left: 4px solid #1a237e;
    background: #f8f9ff;
}

.score {
    font-weight: bold;
    color: #1a237e;
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
}