* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0b0f14;
    color: #ffffff;
}

header {
    height: 60px;
    background: linear-gradient(90deg, #020617, #020617);
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

main {
    display: flex;
    height: calc(100vh - 60px);
}

.panel {
    width: 300px;
    padding: 20px;
    background: #020617;
    border-right: 1px solid #1e293b;
}

label {
    display: block;
    margin-top: 15px;
    font-size: 13px;
    color: #cbd5f5;
}

select,
input {
    width: 100%;
    margin-top: 6px;
    padding: 8px;
    background: #020617;
    color: #fff;
    border: 1px solid #1e293b;
}

.buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

button {
    flex: 1;
    padding: 10px;
    font-weight: bold;
    cursor: pointer;
    border: none;
}

.buy {
    background: #16a34a;
}

.sell {
    background: #dc2626;
}

#status-box {
    margin-top: 15px;
    min-height: 18px;
    font-size: 13px;
    color: #93c5fd;
}

.content {
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.chart-wrapper {
    height: 420px;
    background: #020617;
    border: 1px solid #1e293b;
}

#tvchart {
    width: 100%;
    height: 100%;
}

h3 {
    margin-top: 20px;
    font-size: 16px;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    padding: 6px 0;
    font-size: 14px;
}

.empty {
    color: #64748b;
}