* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: #020817;
    color: #e5edf7;
    font-family: Arial, sans-serif;
    overflow: hidden;
}

.chart-page {
    width: 100%;
    margin: 0;
    padding: 0;
}

.stock-chart-card {
    width: 100%;
    background: #020817;
    border: 0;
    border-radius: 0;
    padding: 18px;
}

.chart-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.timeframe-tabs,
.chart-options {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

button {
    border: 1px solid #334155;
    background: #172236;
    color: #e5edf7;
    padding: 9px 14px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 900;
    font-size: 14px;
}

button:hover,
button.active {
    background: #0ea5e9;
    border-color: #38bdf8;
    color: #03121f;
}

.canvas-wrap {
    width: 100%;
    background: #020817;
    border-radius: 18px;
    padding: 0;
    overflow: hidden;
}

canvas {
    display: block;
    width: 100%;
    height: 620px;
}

@media (max-width: 900px) {
    .stock-chart-card {
        padding: 12px;
    }

    .chart-toolbar {
        display: block;
    }

    .timeframe-tabs,
    .chart-options {
        margin-bottom: 10px;
    }

    button {
        padding: 8px 12px;
        font-size: 13px;
    }

    canvas {
        height: 480px;
    }
}