:root {
    --bg-main: #0B0E11;
    --bg-surface: #181A20;
    --bg-elevated: #1E2329;
    --bg-hover: #2B313A;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-focus: #F0B90B;

    --brand-primary: #F0B90B;
    --brand-hover: #FCD535;
    --brand-dark: #C99400;

    --color-up: #0ECB81;
    --color-up-bg: rgba(14, 203, 129, 0.12);
    --color-down: #F6465D;
    --color-down-bg: rgba(246, 70, 93, 0.12);

    --text-primary: #EAECEF;
    --text-secondary: #848E9C;
    --text-muted: #5E6673;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;

    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
    --shadow-pop: 0 8px 30px rgba(0, 0, 0, 0.55);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body.binance-theme {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--brand-primary);
}

/* Top Navbar */
.navbar {
    height: 64px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

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

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--brand-primary);
}

.brand-subtitle {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
}

.badge-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-sm {
    padding: 2px 8px;
    font-size: 0.7rem;
    background: var(--bg-elevated);
    color: var(--text-secondary);
}

.badge-paper {
    background: rgba(240, 185, 11, 0.15);
    color: var(--brand-primary);
    border: 1px solid rgba(240, 185, 11, 0.3);
}

.badge-live {
    background: var(--color-down-bg);
    color: var(--color-down);
    border: 1px solid rgba(246, 70, 93, 0.3);
}

.badge-running {
    background: var(--color-up-bg);
    color: var(--color-up);
    border: 1px solid rgba(14, 203, 129, 0.3);
}

.badge-stopped {
    background: rgba(132, 142, 156, 0.15);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    display: inline-block;
    box-shadow: 0 0 8px currentColor;
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

/* Nav Center Ticker */
.nav-center {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ticker-item {
    display: flex;
    align-items: baseline;
    gap: 10px;
    background: var(--bg-elevated);
    padding: 6px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.ticker-symbol {
    font-size: 0.95rem;
    font-weight: 700;
}

.ticker-price {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: color 0.3s;
}

.ticker-change {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
}

.price-up { color: var(--color-up) !important; }
.price-down { color: var(--color-down) !important; }

/* Nav Right Actions */
.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    outline: none;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--brand-primary);
    color: #000;
}
.btn-primary:hover {
    background: var(--brand-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--text-secondary);
}

.btn-success {
    background: var(--color-up);
    color: #000;
}
.btn-success:hover {
    background: #0db372;
}

.btn-danger {
    background: var(--color-down);
    color: #fff;
}
.btn-danger:hover {
    background: #e0354c;
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
.btn-outline:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.78rem;
}

.btn-xs {
    padding: 3px 8px;
    font-size: 0.7rem;
}

.btn-icon {
    padding: 8px;
}

/* Main App Layout */
.app-layout {
    max-width: 1680px;
    margin: 0 auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.kpi-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-card);
    transition: transform 0.2s, border-color 0.2s;
}

.kpi-card:hover {
    border-color: rgba(240, 185, 11, 0.4);
    transform: translateY(-2px);
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.kpi-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.kpi-icon {
    font-size: 1.1rem;
}

.kpi-value {
    font-size: 1.6rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    margin-bottom: 6px;
}

.kpi-value.highlight {
    color: var(--brand-primary);
    font-size: 1.25rem;
    font-family: var(--font-sans);
}

.kpi-footer {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.sub-label {
    color: var(--text-secondary);
}

.mono {
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 250px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2.2fr 1.3fr;
    gap: 20px;
}

.grid-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Panels */
.panel {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.panel-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-elevated);
}

.panel-title-group {
    display: flex;
    align-items: center;
    gap: 16px;
}

.panel-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.chart-tag-group {
    display: flex;
    gap: 8px;
}

.chart-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--brand-primary);
    border: 1px solid var(--border-color);
}

.chart-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.select-sm {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    outline: none;
    cursor: pointer;
}
.select-sm:focus {
    border-color: var(--brand-primary);
}

/* Chart & Order Book Split Container */
.chart-and-orderbook-container {
    display: grid;
    grid-template-columns: 1fr 280px;
    background: #12151A;
    position: relative;
}

/* Chart Canvas Wrapper */
.chart-wrapper {
    position: relative;
    width: 100%;
    height: 440px;
    background: #12151A;
}

/* Order Book Widget (호가창) */
.orderbook-widget {
    background: var(--bg-surface);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 440px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    overflow: hidden;
}

.orderbook-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-color);
}

.ob-title {
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--text-primary);
}

.ob-live-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: var(--radius-full);
}

.ob-live-badge.live {
    background: rgba(14, 203, 129, 0.15);
    color: var(--color-up);
    border: 1px solid rgba(14, 203, 129, 0.35);
}

.ob-live-badge.fallback {
    background: rgba(240, 185, 11, 0.15);
    color: var(--brand-primary);
    border: 1px solid rgba(240, 185, 11, 0.35);
}

.orderbook-header {
    display: grid;
    grid-template-columns: 1.1fr 1fr 1fr;
    padding: 7px 12px;
    color: var(--text-secondary);
    font-size: 0.68rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-elevated);
    text-align: right;
}
.orderbook-header .ob-col-price {
    text-align: left;
}

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

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

.orderbook-bids {
    justify-content: flex-start;
}

.ob-empty {
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.72rem;
}

.ob-row {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr 1fr 1fr;
    padding: 2.5px 12px;
    cursor: pointer;
    text-align: right;
    line-height: 1.35;
    transition: background 0.15s;
}

.ob-row:hover {
    background: rgba(255, 255, 255, 0.05);
}

.ob-price {
    text-align: left;
    font-weight: 600;
    position: relative;
    z-index: 2;
}

.ob-amount, .ob-total {
    color: var(--text-primary);
    position: relative;
    z-index: 2;
    opacity: 0.9;
}

.ob-bar {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    z-index: 1;
    pointer-events: none;
    transition: width 0.2s ease;
}

.ob-ask-price { color: var(--color-down); }
.ob-ask-bar { background: rgba(246, 70, 93, 0.14); }

.ob-bid-price { color: var(--color-up); }
.ob-bid-bar { background: rgba(14, 203, 129, 0.14); }

/* Order Book Middle Bar (Current Price & Spread) */
.orderbook-mid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.ob-mid-left {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ob-mid-price {
    font-size: 0.95rem;
    font-weight: 700;
    transition: color 0.15s;
}

.flash-green {
    animation: flashBgGreen 0.4s ease-out;
}

.flash-red {
    animation: flashBgRed 0.4s ease-out;
}

@keyframes flashBgGreen {
    0% { background-color: rgba(14, 203, 129, 0.4); }
    100% { background-color: transparent; }
}

@keyframes flashBgRed {
    0% { background-color: rgba(246, 70, 93, 0.4); }
    100% { background-color: transparent; }
}

.ob-mid-arrow {
    font-size: 0.75rem;
}

.ob-spread {
    font-size: 0.68rem;
    color: var(--text-secondary);
}

#tradingCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

.chart-tooltip {
    position: absolute;
    display: none;
    background: rgba(30, 35, 41, 0.92);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    pointer-events: none;
    z-index: 10;
    box-shadow: var(--shadow-pop);
}

/* Positions List */
.panel-body {
    padding: 16px 20px;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 2.2rem;
    margin-bottom: 8px;
    opacity: 0.6;
}

.position-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    margin-bottom: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.position-card:last-child {
    margin-bottom: 0;
}

.pos-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pos-symbol {
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pos-pnl {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    font-weight: 700;
}

.pos-details-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    background: var(--bg-surface);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
}

.pos-detail-item {
    display: flex;
    flex-direction: column;
}

.pos-detail-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.pos-detail-val {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    max-height: 280px;
    padding: 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.data-table th {
    background: var(--bg-surface);
    color: var(--text-secondary);
    text-align: left;
    padding: 10px 16px;
    font-weight: 600;
    position: sticky;
    top: 0;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 10px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    font-family: var(--font-mono);
}

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* Logs Console */
.logs-console {
    background: #080A0D;
    padding: 14px 18px;
    height: 240px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.76rem;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.log-entry {
    line-height: 1.4;
    word-break: break-all;
}

.log-info { color: #A0AEC0; }
.log-warning { color: #ECC94B; }
.log-error { color: #F56565; }

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-container {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-pop);
    overflow: hidden;
    animation: modalIn 0.25s ease-out;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.96) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    padding: 18px 24px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.1rem;
    font-weight: 700;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.6rem;
    cursor: pointer;
    line-height: 1;
}
.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 20px 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-section-title {
    font-size: 0.88rem;
    color: var(--brand-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
    font-weight: 600;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-control {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

.form-control:focus {
    border-color: var(--brand-primary);
}

.help-text {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.modal-footer {
    padding: 16px 24px;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-footer-actions {
    display: flex;
    gap: 10px;
}

/* Toast Notification */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 2000;
}

.toast {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--brand-primary);
    color: var(--text-primary);
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-pop);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: toastSlideIn 0.3s ease-out;
}

.toast.toast-success { border-left-color: var(--color-up); }
.toast.toast-danger { border-left-color: var(--color-down); }

@keyframes toastSlideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Mobile Tabs & Mobile Action Bar (hidden on desktop) */
.mobile-nav-tabs,
.mobile-action-bar {
    display: none;
}