/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --border-color: #30363d;
    --accent-primary: #58a6ff;
    --accent-green: #3fb950;
    --accent-red: #f85149;
    --accent-yellow: #d29922;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 24px;
}

.logo h1 {
    font-size: 18px;
    font-weight: 600;
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.connected {
    background-color: var(--accent-green);
    box-shadow: 0 0 6px var(--accent-green);
}

.status-dot.disconnected {
    background-color: var(--accent-red);
}

.status-dot.connecting {
    background-color: var(--accent-yellow);
    animation: pulse 1s infinite;
}

.status-dot.polling {
    background-color: var(--accent-yellow);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Main Content Layout */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.search-container {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.search-input {
    width: 100%;
    padding: 10px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.search-input:focus {
    border-color: var(--accent-primary);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.market-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.market-item {
    padding: 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-bottom: 4px;
}

.market-item:hover {
    background-color: var(--bg-tertiary);
}

.market-item.active {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--accent-primary);
}

.market-item-title {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.market-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-secondary);
}

.market-item-price {
    font-weight: 600;
    color: var(--accent-green);
}

.loading {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
}

/* Chart Section */
.chart-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.market-info h2 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.market-price {
    display: flex;
    align-items: center;
    gap: 12px;
}

.price-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-green);
}

.price-change {
    font-size: 13px;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 500;
}

.price-change.positive {
    background-color: rgba(63, 185, 80, 0.2);
    color: var(--accent-green);
}

.price-change.negative {
    background-color: rgba(248, 81, 73, 0.2);
    color: var(--accent-red);
}

.chart-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.interval-selector,
.chart-type-selector {
    display: flex;
    gap: 4px;
}

.interval-btn,
.chart-type-btn {
    padding: 6px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.interval-btn:hover,
.chart-type-btn:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.interval-btn.active,
.chart-type-btn.active {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.chart-container {
    flex: 1;
    background-color: var(--bg-primary);
    position: relative;
}

.chart-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 14px;
}

/* Order Book Section */
.orderbook-section {
    width: 280px;
    background-color: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.orderbook-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.orderbook-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.spread {
    font-size: 11px;
    color: var(--text-secondary);
}

.orderbook-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.orderbook-header-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
}

.asks,
.bids {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.asks {
    justify-content: flex-end;
}

.orderbook-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 12px;
    font-size: 12px;
    font-family: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
    position: relative;
}

.orderbook-row::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    opacity: 0.15;
}

.orderbook-row.ask::before {
    background-color: var(--accent-red);
}

.orderbook-row.bid::before {
    background-color: var(--accent-green);
}

.orderbook-row.ask .price {
    color: var(--accent-red);
}

.orderbook-row.bid .price {
    color: var(--accent-green);
}

.orderbook-mid {
    padding: 8px 12px;
    text-align: center;
    background-color: var(--bg-tertiary);
    font-weight: 600;
    font-size: 14px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.orderbook-placeholder {
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        width: 220px;
    }

    .orderbook-section {
        width: 220px;
    }
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: 200px;
    }

    .orderbook-section {
        width: 100%;
        height: 200px;
    }

    .market-list {
        display: flex;
        overflow-x: auto;
        gap: 8px;
    }

    .market-item {
        min-width: 200px;
    }
}