@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

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

:root {
    --bg: #080b16;
    --bg-elevated: #0e1225;
    --card: #131833;
    --card-hover: #1a2045;
    --card-active: #1e2550;
    --border: #1e2340;
    --border-light: #252b4a;

    --text: #e4e7ef;
    --text-secondary: #9098b8;
    --text-dim: #5a6285;

    --green: #00dc82;
    --green-dim: rgba(0, 220, 130, 0.12);
    --red: #ff4757;
    --red-dim: rgba(255, 71, 87, 0.12);
    --blue: #3b82f6;
    --blue-dim: rgba(59, 130, 246, 0.12);
    --amber: #f5a623;
    --amber-dim: rgba(245, 166, 35, 0.10);

    --radius: 8px;
    --radius-sm: 4px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC',
                  'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ========== Header ========== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    background: rgba(14, 18, 37, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-title {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 2px 10px 2px 7px;
    border-radius: 100px;
    font-size: 10px;
    font-weight: 500;
    color: var(--text-dim);
    background: var(--bg);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.status-badge.online {
    color: var(--green);
    background: var(--green-dim);
    border-color: rgba(0, 220, 130, 0.2);
}

.status-badge.offline {
    color: var(--red);
    background: var(--red-dim);
    border-color: rgba(255, 71, 87, 0.2);
}

.status-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--text-dim);
    flex-shrink: 0;
}

.status-dot.online {
    background: var(--green);
    box-shadow: 0 0 6px rgba(0, 220, 130, 0.6);
    animation: pulse 2s ease-in-out infinite;
}

.status-dot.offline {
    background: var(--red);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.header-right {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.balance-label {
    font-size: 11px;
    color: var(--text-dim);
    margin-right: 6px;
}

.balance-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--text);
}

.balance-unit {
    font-size: 11px;
    color: var(--text-dim);
    font-weight: 500;
}

/* ========== Main Layout ========== */
.main {
    display: flex;
    height: calc(100vh - 49px);
}

/* ========== Trade Panel ========== */
.trade-panel {
    width: 260px;
    min-width: 260px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    background: var(--bg-elevated);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
}

.panel-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.trade-count {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-dim);
    background: var(--card);
    padding: 1px 7px;
    border-radius: 100px;
}

.trade-list {
    flex: 1;
    overflow-y: auto;
}

.trade-list::-webkit-scrollbar { width: 3px; }
.trade-list::-webkit-scrollbar-track { background: transparent; }
.trade-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.trade-item {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s ease;
}

.trade-item:hover { background: var(--card-hover); }

.trade-item.active {
    background: var(--card-active);
    border-left: 2px solid var(--blue);
    padding-left: 12px;
}

.trade-row-top {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 3px;
}

.trade-tag {
    font-size: 9px;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 2px;
    letter-spacing: 0.5px;
}

.trade-tag.side-long {
    color: var(--green);
    background: var(--green-dim);
}

.trade-tag.side-short {
    color: var(--red);
    background: var(--red-dim);
}

.trade-symbol {
    font-size: 12px;
    font-weight: 600;
    flex: 1;
}

.trade-status.holding {
    font-size: 10px;
    color: var(--blue);
    background: var(--blue-dim);
    padding: 1px 7px;
    border-radius: 100px;
    font-weight: 500;
}

.trade-pnl {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 600;
}

.trade-pnl.profit { color: var(--green); }
.trade-pnl.loss { color: var(--red); }

.trade-tag.tag-tp { color: var(--green); background: var(--green-dim); }
.trade-tag.tag-sl { color: var(--red); background: var(--red-dim); }
.trade-tag.tag-timeout { color: var(--amber); background: var(--amber-dim); }
.trade-tag.tag-manual { color: var(--text-secondary); background: rgba(144,152,184,0.12); }

.trade-row-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.trade-time {
    font-size: 10px;
    color: var(--text-dim);
}

.trade-meta {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-dim);
}

.trade-empty {
    padding: 40px 16px;
    text-align: center;
    color: var(--text-dim);
    font-size: 12px;
}

/* ========== Chart Section ========== */
.chart-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg);
}

.chart-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 16px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    min-height: 44px;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.symbol-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.price-display {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.current-price {
    font-family: 'JetBrains Mono', monospace;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--text);
    transition: color 0.15s ease;
}

.current-price.price-up { color: var(--green); }
.current-price.price-down { color: var(--red); }

.price-change {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 500;
}

.price-change.price-up { color: var(--green); }
.price-change.price-down { color: var(--red); }

.toolbar-right {
    display: flex;
    align-items: center;
}

.tf-group {
    display: flex;
    gap: 1px;
    background: var(--card);
    padding: 2px;
    border-radius: 6px;
}

.tf-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    padding: 4px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: var(--text-dim);
    background: transparent;
    transition: all 0.15s ease;
}

.tf-btn:hover { color: var(--text-secondary); }

.tf-btn.active {
    background: var(--blue);
    color: #fff;
    box-shadow: 0 1px 6px rgba(59, 130, 246, 0.3);
}

/* ========== Position Bar ========== */
.position-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 16px;
    background: var(--amber-dim);
    border-bottom: 1px solid rgba(245, 166, 35, 0.15);
    gap: 12px;
}

.pos-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pos-side {
    font-size: 10px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 2px;
    letter-spacing: 0.5px;
}

.pos-side.pos-long {
    color: var(--green);
    background: var(--green-dim);
}

.pos-side.pos-short {
    color: var(--red);
    background: var(--red-dim);
}

.pos-size {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-secondary);
}

.pos-pnl-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pos-entry-label {
    font-size: 10px;
    color: var(--text-dim);
}

.pos-entry-val {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--amber);
}

.pos-pnl {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 600;
}

.pos-pnl.profit { color: var(--green); }
.pos-pnl.loss { color: var(--red); }

.pos-pnl-pct {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 600;
    padding: 1px 5px;
    border-radius: 3px;
}

.pos-pnl-pct.profit {
    color: var(--green);
    background: var(--green-dim);
}

.pos-pnl-pct.loss {
    color: var(--red);
    background: var(--red-dim);
}

/* ========== Chart Container ========== */
.chart-container {
    flex: 1;
    min-height: 300px;
}

/* ========== Detail Panel ========== */
.detail-panel {
    min-height: 80px;
    max-height: 170px;
    overflow-y: auto;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    padding: 10px 16px;
}

.detail-panel::-webkit-scrollbar { width: 3px; }
.detail-panel::-webkit-scrollbar-track { background: transparent; }
.detail-panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.detail-empty {
    color: var(--text-dim);
    font-size: 12px;
    text-align: center;
    padding: 16px 0;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1px 20px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 11px;
}

.detail-item.detail-highlight {
    border-top: 1px solid var(--border);
    padding-top: 7px;
    margin-top: 3px;
}

.detail-label {
    color: var(--text-dim);
    font-size: 11px;
}

.detail-val {
    font-weight: 500;
    font-size: 11px;
}

.detail-val.mono {
    font-family: 'JetBrains Mono', monospace;
}

.detail-val.val-long { color: var(--green); font-weight: 600; }
.detail-val.val-short { color: var(--red); font-weight: 600; }
.detail-val.profit { color: var(--green); }
.detail-val.loss { color: var(--red); }

/* ========== Mobile ========== */
@media (max-width: 768px) {
    .main {
        flex-direction: column;
        height: auto;
    }

    .trade-panel {
        width: 100%;
        min-width: 100%;
        max-height: 35vh;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .chart-section {
        height: 65vh;
    }

    .chart-toolbar {
        flex-wrap: wrap;
        gap: 6px;
        padding: 8px 12px;
    }

    .toolbar-left { gap: 10px; }

    .current-price { font-size: 16px; }

    .tf-group { flex: 0; }
    .tf-btn { padding: 4px 10px; }

    .chart-container { min-height: 220px; }

    .detail-grid { grid-template-columns: 1fr; }

    .position-bar {
        flex-wrap: wrap;
        gap: 4px;
        padding: 5px 12px;
    }

    .balance-value { font-size: 16px; }

    .header { padding: 8px 12px; }
}