/* ============================================
   PROFESSIONAL HFT INTERFACE
   Quantitative Research & Trading Terminal
   =========================================== */

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

:root {
    /* Professional Color Palette - Bloomberg Terminal Inspired */
    --bg-primary: #0c0c0c;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --bg-panel: #111111;
    
    --text-primary: #e8e8e8;
    --text-secondary: #888888;
    --text-tertiary: #555555;
    --text-muted: #444444;
    
    /* Functional Colors - Minimal */
    --accent-up: #00b050;
    --accent-down: #ff3333;
    --accent-neutral: #ffaa00;
    --accent-highlight: #4a9eff;
    
    --border-color: #2a2a2a;
    --border-highlight: #333333;
    
    /* Typography */
    --font-mono: 'JetBrains Mono', 'Consolas', 'Monaco', monospace;
    --font-sans: 'Inter', -apple-system, system-ui, sans-serif;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;
}

/* Base */
html {
    font-size: 13px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-mono);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    line-height: 1.4;
}

/* ============================================
   LAYOUT STRUCTURE
   =========================================== */
.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* ============================================
   TOP BAR - SYSTEM STATUS
   =========================================== */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 28px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--space-md);
    font-size: 11px;
}

.top-bar-left,
.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.status-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.status-label {
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-value {
    color: var(--text-secondary);
    font-weight: 500;
}

.status-value.active {
    color: var(--accent-up);
}

.status-value.warning {
    color: var(--accent-neutral);
}

.status-value.error {
    color: var(--accent-down);
}

/* ============================================
   MENU BAR
   =========================================== */
.menu-bar {
    display: flex;
    align-items: center;
    height: 32px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--space-sm);
}

.menu-group {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0 var(--space-sm);
    border-right: 1px solid var(--border-color);
}

.menu-group:last-child {
    border-right: none;
}

.menu-label {
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 var(--space-xs);
}

.menu-item {
    padding: 4px 10px;
    font-size: 11px;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 2px;
    transition: background 0.1s;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.menu-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.menu-item.active {
    background: var(--accent-highlight);
    color: var(--bg-primary);
}

/* ============================================
   MAIN WORKSPACE
   =========================================== */
.workspace {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-primary);
}

/* Grid Background - Subtle */
.grid-bg {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.3;
    pointer-events: none;
}

/* ============================================
   PANELS - PROFESSIONAL TERMINAL STYLE
   =========================================== */
.panel {
    position: absolute;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    min-width: 280px;
    min-height: 180px;
    display: flex; /* Default: always show */
}

.panel.active {
    border-color: var(--accent-highlight);
    box-shadow: 0 0 0 1px var(--accent-highlight) inset;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 26px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--space-sm);
    cursor: grab;
    user-select: none;
}

.panel.active .panel-header {
    background: linear-gradient(90deg, var(--accent-highlight) 0%, transparent 100%);
    border-bottom-color: var(--accent-highlight);
}

.panel-header:active {
    cursor: grabbing;
}

.panel-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.panel.active .panel-title {
    color: var(--bg-primary);
    text-shadow: 0 0 2px var(--accent-highlight);
}

.panel-controls {
    display: flex;
    gap: 2px;
}

.panel-btn {
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 10px;
    cursor: pointer;
    border-radius: 2px;
}

.panel-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.panel-btn.close:hover {
    background: var(--accent-down);
    color: white;
}

.panel-content {
    flex: 1;
    overflow: auto;
    padding: var(--space-md);
}

.panel-resize {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 12px;
    cursor: nwse-resize;
}

.panel-resize::after {
    content: '';
    position: absolute;
    bottom: 3px;
    right: 3px;
    width: 5px;
    height: 5px;
    border-right: 1px solid var(--text-muted);
    border-bottom: 1px solid var(--text-muted);
}

/* ============================================
   PANEL CONTENT STYLES
   =========================================== */

/* Data Table - Universal */
.data-table {
    width: 100%;
    font-size: 11px;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: var(--space-xs) var(--space-sm);
    color: var(--text-tertiary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: var(--space-xs) var(--space-sm);
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.data-table tr:hover td {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Profile Panel */
.profile-header {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.profile-avatar {
    width: 64px;
    height: 64px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.profile-info h1 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.profile-info .title {
    font-size: 11px;
    color: var(--accent-highlight);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.profile-info .desc {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.profile-section {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.profile-section h3 {
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-sm);
}

.profile-section p {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Skills Panel */
.skill-bar {
    margin-bottom: var(--space-md);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-xs);
}

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

.skill-value {
    font-size: 11px;
    color: var(--text-tertiary);
}

.skill-progress {
    height: 4px;
    background: var(--bg-secondary);
    border-radius: 2px;
    overflow: hidden;
}

.skill-progress-bar {
    height: 100%;
    background: var(--accent-highlight);
    transition: width 0.3s;
}

/* Contact Panel */
.contact-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--bg-secondary);
    cursor: pointer;
    transition: background 0.1s;
}

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

.contact-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    font-size: 10px;
    color: var(--text-tertiary);
}

.contact-details {
    flex: 1;
}

.contact-label {
    font-size: 9px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 11px;
    color: var(--text-primary);
}

/* Projects Panel */
.project-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.project-item {
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-left: 2px solid var(--accent-highlight);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xs);
}

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

.project-status {
    font-size: 9px;
    padding: 2px 6px;
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-status.active {
    background: rgba(0, 176, 80, 0.15);
    color: var(--accent-up);
}

.project-desc {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--space-sm);
}

.project-tags {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.project-tag {
    font-size: 9px;
    padding: 2px 6px;
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
}

/* Experience Panel */
.experience-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.experience-item {
    position: relative;
    padding-left: var(--space-lg);
    border-left: 1px solid var(--border-color);
}

.experience-item::before {
    content: '';
    position: absolute;
    left: -3px;
    top: 0;
    width: 5px;
    height: 5px;
    background: var(--accent-highlight);
    border-radius: 50%;
}

.experience-company {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.experience-role {
    font-size: 11px;
    color: var(--accent-highlight);
    margin-bottom: 2px;
}

.experience-period {
    font-size: 10px;
    color: var(--text-tertiary);
    margin-bottom: var(--space-sm);
}

.experience-desc {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Trading Panels */
.orderbook {
    font-size: 11px;
}

.orderbook-header {
    display: flex;
    justify-content: space-between;
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-secondary);
    margin-bottom: var(--space-xs);
}

.orderbook-symbol {
    font-weight: 600;
    color: var(--text-primary);
}

.orderbook-spread {
    color: var(--text-tertiary);
}

.orderbook-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    padding: 2px var(--space-sm);
    font-family: var(--font-mono);
}

.orderbook-row:hover {
    background: var(--bg-secondary);
}

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

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

.orderbook-row .price {
    font-weight: 600;
}

.orderbook-row .size,
.orderbook-row .total {
    text-align: right;
    color: var(--text-secondary);
}

/* Trades Panel */
.trade-row {
    display: grid;
    grid-template-columns: 60px 50px 1fr 70px;
    gap: var(--space-xs);
    padding: 3px var(--space-sm);
    font-size: 11px;
    font-family: var(--font-mono);
}

.trade-row:hover {
    background: var(--bg-secondary);
}

.trade-time {
    color: var(--text-tertiary);
}

.trade-side {
    font-weight: 600;
    text-transform: uppercase;
}

.trade-side.buy {
    color: var(--accent-up);
}

.trade-side.sell {
    color: var(--accent-down);
}

.trade-price {
    text-align: right;
    color: var(--text-primary);
}

.trade-size {
    text-align: right;
    color: var(--text-secondary);
}

/* Latency Panel */
.latency-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.latency-item {
    padding: var(--space-md);
    background: var(--bg-secondary);
    text-align: center;
}

.latency-label {
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.latency-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.latency-value.good {
    color: var(--accent-up);
}

.latency-value.medium {
    color: var(--accent-neutral);
}

.latency-value.bad {
    color: var(--accent-down);
}

/* Strategy Panel */
.strategy-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-secondary);
    margin-bottom: var(--space-xs);
}

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

.strategy-status {
    font-size: 9px;
    padding: 2px 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.strategy-status.running {
    background: rgba(0, 176, 80, 0.15);
    color: var(--accent-up);
}

.strategy-status.stopped {
    background: rgba(255, 51, 51, 0.15);
    color: var(--accent-down);
}

.strategy-status.paused {
    background: rgba(255, 170, 0, 0.15);
    color: var(--accent-neutral);
}

/* Performance Panel */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.metric-item {
    padding: var(--space-md);
    background: var(--bg-secondary);
    text-align: center;
}

.metric-label {
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.metric-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* Terminal Panel */
.terminal {
    background: var(--bg-primary);
    font-family: var(--font-mono);
    font-size: 12px;
}

.terminal-output {
    height: 200px;
    overflow-y: auto;
    padding: var(--space-sm);
    color: var(--text-secondary);
}

.terminal-line {
    margin-bottom: 2px;
    line-height: 1.4;
}

.terminal-line.prompt {
    color: var(--accent-highlight);
}

.terminal-line.output {
    color: var(--text-secondary);
}

.terminal-line.error {
    color: var(--accent-down);
}

.terminal-input-line {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm);
    border-top: 1px solid var(--border-color);
}

.terminal-prompt {
    color: var(--accent-highlight);
}

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
}

/* ============================================
   CONTEXT MENU
   =========================================== */
.context-menu {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    min-width: 160px;
    z-index: 10000;
    font-size: 11px;
}

.context-item {
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.1s;
}

.context-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.context-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--space-xs) 0;
}

/* ============================================
   SCROLLBARS
   =========================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--border-highlight);
}

/* ============================================
   SELECTION
   =========================================== */
::selection {
    background: var(--accent-highlight);
    color: var(--bg-primary);
}