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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f4f5f7;
    color: #1a1a1a;
    min-height: 100vh;
}

.container { max-width: 720px; margin: 0 auto; padding: 24px 16px; }

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.logo { font-size: 16px; font-weight: 600; }

select, input, button {
    font-family: inherit;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid #d7d7d7;
    background: #fff;
}

button {
    cursor: pointer;
    background: #2a2a2a;
    color: #fff;
    border: none;
}

button.secondary {
    background: #fff;
    color: #2a2a2a;
    border: 1px solid #d7d7d7;
}

button:hover { opacity: 0.9; }

.card {
    background: #fff;
    border-radius: 14px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.metric-label { font-size: 12px; color: #777; margin-bottom: 4px; }
.metric-value { font-size: 22px; font-weight: 600; }

.chart-wrap { position: relative; height: 220px; margin-bottom: 20px; }

.buy-row { display: flex; gap: 8px; margin-bottom: 20px; }
.buy-row input[type=number] { width: 90px; }
.buy-row button { flex: 1; }

.referral-link-row { display: flex; gap: 8px; margin-bottom: 8px; }
.referral-link-row input { flex: 1; }
.referral-stats { font-size: 13px; color: #555; }

.disclaimer {
    font-size: 12px;
    color: #888;
    line-height: 1.5;
    padding-top: 12px;
    border-top: 1px solid #eee;
    margin-top: 20px;
}

.form-field { margin-bottom: 14px; }
.form-field label { display: block; font-size: 13px; margin-bottom: 6px; color: #444; }
.form-field input { width: 100%; }

.error-msg { color: #c0392b; font-size: 13px; margin-top: 8px; }
.link-inline { color: #2563eb; text-decoration: none; font-size: 13px; }

.rank-badge {
    display: inline-block;
    background: #eef2ff;
    color: #3730a3;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 999px;
}

table.orderbook { width: 100%; font-size: 13px; border-collapse: collapse; }
table.orderbook td { padding: 4px 8px; }
table.orderbook .sell { color: #c0392b; }
table.orderbook .buy { color: #1e824c; }
table.orderbook td[data-user]:hover { background: #f4f5f7; border-radius: 6px; }

.detail-hidden { display: none; }

.msg-row .reply-btn { padding: 4px 8px; font-size: 11px; margin-top: 4px; }
.transfer-row { font-size: 12px; padding: 4px 0; border-bottom: 1px dashed #eee; }