.coin-chart-container {
    position: relative;
    margin: 20px 0;
    width: 100%;
    max-width: 1200px;
    padding: 20px;
}

.chart-period-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    justify-content: flex-end;
}

.chart-period-buttons button {
    padding: 8px 16px;
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chart-period-buttons button:hover {
    background: #f5f5f5;
}

.chart-period-buttons button.active {
    background: #10bdc2;
    color: #fff;
    border-color: #10bdc2;
}

#coinChart {
    width: 100%;
    height: 400px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.chart-error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    color: #ff4500;
    font-size: 16px;
    text-align: center;
    padding: 20px;
}