#trading-simulator {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: Arial, sans-serif;
}

.trading-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}

.trading-header h2 {
    margin: 0;
    color: #333;
}

.account-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.account-info span {
    font-size: 18px;
    font-weight: bold;
    color: #2c5aa0;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.btn-primary {
    background-color: #007cba;
    color: white;
}

.btn-primary:hover {
    background-color: #005a87;
}

.btn-success {
    background-color: #28a745;
    color: white;
}

.btn-success:hover {
    background-color: #218838;
}

.btn-warning {
    background-color: #ffc107;
    color: #212529;
}

.btn-warning:hover {
    background-color: #e0a800;
}

.stock-search {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    align-items: center;
}

.stock-search input {
    flex: 1;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    max-width: 300px;
}

.stock-search input:focus {
    outline: none;
    border-color: #007cba;
}

#stock-info {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
}

#stock-info h3 {
    margin-top: 0;
    color: #333;
}

#stock-info p {
    margin: 10px 0;
    font-size: 16px;
}

.positive {
    color: #28a745;
}

.negative {
    color: #dc3545;
}

.trading-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
    align-items: end;
}

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

.form-group label {
    margin-bottom: 5px;
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group select {
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #007cba;
}

.portfolio-section,
.transaction-history {
    margin-bottom: 30px;
}

.portfolio-section h3,
.transaction-history h3 {
    color: #333;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 10px;
}

.portfolio-table,
.transactions-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    background-color: white;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.portfolio-table th,
.transactions-table th,
.portfolio-table td,
.transactions-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.portfolio-table th,
.transactions-table th {
    background-color: #f8f9fa;
    font-weight: bold;
    color: #333;
}

.portfolio-table tr:hover,
.transactions-table tr:hover {
    background-color: #f8f9fa;
}

.buy {
    color: #28a745;
    font-weight: bold;
}

.sell {
    color: #dc3545;
    font-weight: bold;
}

@media (max-width: 768px) {
    .trading-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .trading-form {
        grid-template-columns: 1fr;
    }
    
    .stock-search {
        flex-direction: column;
        align-items: stretch;
    }
    
    .stock-search input {
        max-width: none;
    }
    
    .portfolio-table,
    .transactions-table {
        font-size: 14px;
    }
    
    .portfolio-table th,
    .transactions-table th,
    .portfolio-table td,
    .transactions-table td {
        padding: 8px;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}