@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- DESIGN SYSTEM & CSS VARIABLES --- */
:root {
    --bg-main: #070b13;
    --bg-card: rgba(15, 22, 40, 0.7);
    --bg-header: rgba(10, 15, 28, 0.85);
    
    --border-glass: rgba(255, 255, 255, 0.06);
    --border-glass-glow: rgba(0, 240, 255, 0.15);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Neon Theme Colors */
    --color-electric: #ffb700;
    --color-electric-glow: rgba(255, 183, 0, 0.25);
    --color-plumbing: #00f0ff;
    --color-plumbing-glow: rgba(0, 240, 255, 0.25);
    --color-mechanical: #ff2a5f;
    --color-mechanical-glow: rgba(255, 42, 95, 0.25);
    
    --color-success: #10b981;
    --color-success-glow: rgba(16, 185, 129, 0.2);
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-danger-glow: rgba(239, 68, 68, 0.35);
    
    /* Fonts */
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- BASE STYLES --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

body {
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(at 0% 0%, rgba(20, 30, 60, 0.2) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(10, 50, 80, 0.15) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(5, 10, 20, 0.5) 0px, transparent 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Scrollbar customization */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* --- LAYOUT STRUCTURE --- */
.app-container {
    display: grid;
    grid-template-rows: auto 1fr;
    height: 100vh;
    max-height: 100vh;
    padding: 1rem;
    gap: 1rem;
}

/* --- HEADER PANEL --- */
header.app-header {
    background: var(--bg-header);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand h1 {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 2px;
    background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand span {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.02);
}

.quick-telemetry {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.telemetry-item {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.telemetry-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
}

.telemetry-value {
    font-size: 1.15rem;
    font-weight: 700;
    font-family: var(--font-sans);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* System Status Indicator */
.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.25);
    padding: 0.4rem 0.8rem;
    border-radius: 99px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-success);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.1);
}

.status-badge.warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.25);
    color: var(--color-warning);
}

.status-badge.danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: var(--color-danger);
    animation: status-pulse 1.5s infinite alternate;
}

.status-indicator-dot {
    width: 8px;
    height: 8px;
    background-color: currentColor;
    border-radius: 50%;
    box-shadow: 0 0 8px currentColor;
}

@keyframes status-pulse {
    0% { opacity: 0.8; box-shadow: 0 0 4px var(--color-danger); }
    100% { opacity: 1; box-shadow: 0 0 12px var(--color-danger); }
}

/* --- MAIN DASHBOARD GRID --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1.2fr 1.8fr;
    grid-template-rows: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: 1rem;
    height: calc(100vh - 100px);
}

/* Glassmorphic Panel (Card Base) */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: border-color var(--transition-normal);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-shrink: 0;
}

.panel-header h2 {
    font-size: 1.15rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Column/Row Spans for Grid */
.yacht-schematic-panel {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.systems-panel {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
}

.bottom-row-panel {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* --- YACHT SVG VIEW --- */
.yacht-viewport {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 250px;
    background: radial-gradient(circle, rgba(16, 24, 48, 0.3) 0%, transparent 80%);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.02);
    overflow: hidden;
}

.yacht-svg {
    width: 90%;
    height: auto;
    max-height: 90%;
    filter: drop-shadow(0 0 15px rgba(0, 240, 255, 0.08));
}

/* SVG Interactive Nodes */
.svg-node {
    cursor: pointer;
    transition: transform var(--transition-fast), filter var(--transition-fast);
}

.svg-node:hover {
    transform: scale(1.1);
    transform-origin: center;
}

.node-glow {
    animation: node-pulse 2s infinite ease-in-out;
}

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

/* Active pipelines/wiring in SVG */
.flow-line {
    stroke-dasharray: 8 6;
    animation: flow-run 25s linear infinite;
    opacity: 0.15;
    transition: opacity var(--transition-normal), stroke var(--transition-normal);
}

.flow-line.active {
    opacity: 1;
}

.flow-line.electrical { stroke: var(--color-electric); }
.flow-line.plumbing { stroke: var(--color-plumbing); }
.flow-line.mechanical { stroke: var(--color-mechanical); }

@keyframes flow-run {
    to {
        stroke-dashoffset: -500;
    }
}

.heeling-overlay {
    position: absolute;
    bottom: 10px;
    right: 15px;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* --- CONTROL TABS --- */
.tab-navigation {
    display: flex;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    padding: 0.25rem;
    border-radius: 10px;
    gap: 0.25rem;
}

.tab-btn {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.tab-btn.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

/* System Tab Panels */
.tab-content {
    flex-grow: 1;
    display: none;
    overflow-y: auto;
    padding-top: 1rem;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* --- SYSTEM-SPECIFIC DASHBOARDS --- */
/* Two Column Layout for detail tabs */
.tab-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1.25rem;
    height: 100%;
}

.dashboard-card {
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

.dashboard-card-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 0.35rem;
}

/* Radial Battery SoC Indicator */
.radial-meter-container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.radial-meter {
    position: relative;
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: conic-gradient(var(--color-electric) 0%, rgba(255, 255, 255, 0.05) 0%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.6);
    transition: background var(--transition-normal);
}

.radial-meter::after {
    content: '';
    position: absolute;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: #0f1628;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

.radial-meter-value {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.radial-meter-value .percent {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1;
}

.radial-meter-value .units {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.radial-meter-details {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex-grow: 1;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.03);
    padding-bottom: 0.2rem;
}

.metric-row span:last-child {
    font-weight: 600;
    font-family: var(--font-mono);
}

/* Dynamic current indicators */
.charge-positive { color: var(--color-success) !important; }
.charge-negative { color: var(--color-danger) !important; }

/* Grid of switchboard toggles */
.switchboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

/* Custom Switches (Pills) */
.switch-control {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.switch-control:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.06);
}

.switch-label {
    display: flex;
    flex-direction: column;
}

.switch-title {
    font-size: 0.8rem;
    font-weight: 600;
}

.switch-subtitle {
    font-size: 0.65rem;
    color: var(--text-muted);
}

.switch-input {
    display: none;
}

.switch-slider {
    position: relative;
    width: 38px;
    height: 20px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 20px;
    transition: background-color var(--transition-fast);
    flex-shrink: 0;
}

.switch-slider::before {
    content: "";
    position: absolute;
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: #fff;
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.switch-input:checked + .switch-slider {
    background-color: var(--theme-color, var(--color-electric));
    box-shadow: 0 0 10px var(--theme-color-glow, var(--color-electric-glow));
}

.switch-input:checked + .switch-slider::before {
    transform: translateX(18px);
}

/* Linear Gauge/Tank Meter */
.tank-indicator {
    margin-bottom: 1rem;
}

.tank-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    margin-bottom: 0.35rem;
}

.tank-name {
    font-weight: 600;
}

.tank-stats {
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.tank-bar-container {
    height: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 99px;
    overflow: hidden;
    position: relative;
}

.tank-bar {
    height: 100%;
    width: 0%;
    background-color: var(--tank-color, var(--color-plumbing));
    border-radius: 99px;
    box-shadow: 0 0 8px var(--tank-color-glow, var(--color-plumbing-glow));
    transition: width var(--transition-normal);
}

/* Action button buttons */
.action-btn {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.action-btn:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
}

.action-btn:active {
    transform: scale(0.98);
}

/* Bow Thruster Joy Controller */
.joystick-control {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.joy-btn {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    padding: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.joy-btn:hover {
    background: rgba(255,255,255,0.04);
    color: var(--text-primary);
}

.joy-btn.active {
    background: var(--color-mechanical);
    border-color: var(--color-mechanical);
    color: white;
    box-shadow: 0 0 15px var(--color-mechanical-glow);
}

/* Engine Diagnostics Card */
.engine-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.diag-item {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.02);
    padding: 0.4rem;
    border-radius: 6px;
    text-align: center;
}

.diag-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.diag-value {
    font-size: 0.9rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* --- SETTINGS / CONFIGURATION PANEL --- */
.config-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.config-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.config-group label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.config-input, .config-select {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 0.4rem 0.6rem;
    color: white;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.config-input:focus, .config-select:focus {
    border-color: var(--color-plumbing);
}

.config-save-btn {
    grid-column: 1 / 3;
    background: var(--color-plumbing);
    color: #030712;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.6rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.config-save-btn:hover {
    background: white;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

/* --- SIMULATION ENVIRONMENT CONTROLLERS --- */
.sim-controls-panel {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.control-sliders {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.slider-group {
    display: flex;
    flex-direction: column;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    margin-bottom: 0.2rem;
}

.slider-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.slider-val {
    font-family: var(--font-mono);
}

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.08);
    border-radius: 99px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-plumbing);
    cursor: pointer;
    box-shadow: 0 0 6px var(--color-plumbing-glow);
    transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.sim-speed-selector {
    display: flex;
    gap: 0.25rem;
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 0.15rem;
    margin-top: 0.5rem;
}

.speed-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.35rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.speed-btn:hover {
    color: white;
}

.speed-btn.active {
    background: var(--color-plumbing);
    color: #030712;
    font-weight: 700;
}

/* --- LOG CONSOLE TERMINAL --- */
.log-console-panel {
    display: flex;
    flex-direction: column;
}

.log-stream {
    flex-grow: 1;
    background: rgba(3, 5, 10, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    padding: 0.5rem 0.75rem;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    box-shadow: inset 0 4px 12px rgba(0,0,0,0.8);
}

.log-entry {
    line-height: 1.35;
    border-left: 2px solid var(--text-muted);
    padding-left: 0.5rem;
    animation: fade-in 0.2s ease-out;
}

.log-entry-time {
    color: var(--text-muted);
    margin-right: 0.5rem;
    font-weight: 600;
}

.log-entry-msg {
    color: var(--text-secondary);
}

.log-entry.warning {
    border-color: var(--color-warning);
}
.log-entry.warning .log-entry-msg {
    color: #fca5a5;
}

.log-entry.alarm {
    border-color: var(--color-danger);
    background: rgba(239, 68, 68, 0.05);
}
.log-entry.alarm .log-entry-msg {
    color: #f87171;
    font-weight: bold;
}

.log-entry.event {
    border-color: var(--color-success);
}
.log-entry.event .log-entry-msg {
    color: #e2e8f0;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(-3px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- ALARM LIST BAR --- */
.active-alarms-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.5rem;
    max-height: 50px;
    overflow-y: auto;
}

.alarm-tag {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--color-danger);
    color: #fca5a5;
    font-size: 0.65rem;
    font-family: var(--font-mono);
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    animation: flash 1s infinite alternate;
}

@keyframes flash {
    0% { border-color: rgba(239, 68, 68, 0.3); box-shadow: 0 0 2px rgba(239, 68, 68, 0.1); }
    100% { border-color: var(--color-danger); box-shadow: 0 0 8px rgba(239, 68, 68, 0.3); }
}

/* Utility to override theme variables for specific panels */
.electrical-theme {
    --theme-color: var(--color-electric);
    --theme-color-glow: var(--color-electric-glow);
}
.plumbing-theme {
    --theme-color: var(--color-plumbing);
    --theme-color-glow: var(--color-plumbing-glow);
}
.mechanical-theme {
    --theme-color: var(--color-mechanical);
    --theme-color-glow: var(--color-mechanical-glow);
}