:root {
    --bg-color: #0d1117;
    --panel-bg: #161b22;
    --panel-header: #21262d;
    --header-bg: #161b22;
    --sidebar-bg: #0d1117;
    --text-main: #c9d1d9;
    --text-dim: #8b949e;
    --neon-blue: #58a6ff;
    --neon-yellow: #d29922;
    --neon-green: #3fb950;
    --neon-red: #f85149;
    --border-color: #30363d;
    --font-mono: 'JetBrains Mono', monospace;
    --gutter: 20px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
    user-select: none;
}

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

/* GLOBAL HEADER */
#main-header {
    height: 60px;
    background: var(--header-bg);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--gutter);
    z-index: 1000;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-icon {
    font-size: 1.5em;
    color: var(--neon-blue);
    filter: drop-shadow(0 0 5px var(--neon-blue));
}

#main-header h1 {
    font-size: 1em;
    font-weight: 800;
    letter-spacing: 2px;
}

.dim {
    color: var(--text-dim);
    font-weight: 400;
}

#mode-hud {
    text-align: right;
}

.hud-label {
    font-size: 0.6em;
    color: var(--text-dim);
    letter-spacing: 2px;
}

.mode-text {
    font-size: 1.2em;
    font-weight: 800;
    color: var(--neon-blue);
    text-shadow: 0 0 10px rgba(88, 166, 255, 0.4);
}

/* WORKSPACE LAYOUT (DESKTOP) */
#workspace {
    flex: 1;
    display: grid;
    grid-template-columns: 320px 1fr;
    grid-template-rows: 45% 55%;
    overflow: hidden;
}

#sidebar {
    grid-column: 1;
    grid-row: 1 / 3;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: var(--gutter);
    overflow-y: auto;
    min-width: 260px; /* Prevent too much compression */
}

#viz-area {
    grid-column: 2;
    grid-row: 1;
    background: #000;
    position: relative;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

#diagnostic-grid {
    grid-column: 2;
    grid-row: 2;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    background: var(--border-color);
    gap: 1px;
    overflow: hidden;
}

/* SIDEBAR COMPONENTS */
.panel-header h2 {
    font-size: 0.7em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 12px;
    letter-spacing: 1.5px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.control-box {
    background: var(--panel-bg);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: var(--gutter);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    font-size: 0.7em;
    font-weight: 600;
    color: var(--text-dim);
    width: 60px;
}

input[type=range] {
    flex: 1;
    accent-color: var(--neon-blue);
}

.control-group span {
    font-family: var(--font-mono);
    font-size: 0.8em;
    color: var(--neon-blue);
    width: 45px;
    text-align: right;
}

.button-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: var(--gutter);
}

button {
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--panel-header);
    color: #fff;
    cursor: pointer;
    font-size: 0.7em;
    font-weight: 700;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

button:hover {
    background: var(--border-color);
}

button:active {
    transform: translateY(1px);
}

.btn-primary {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
}

.btn-primary:active {
    background: var(--neon-blue);
    color: #000;
}

.btn-secondary {
    border-color: var(--neon-yellow);
    color: var(--neon-yellow);
}

.btn-secondary:active {
    background: var(--neon-yellow);
    color: #000;
}

.btn-info {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
}

.btn-success {
    border-color: var(--neon-green);
    color: var(--neon-green);
}

.btn-danger {
    border-color: var(--neon-red);
    color: var(--neon-red);
    margin-top: 10px;
}

.sidebar-info {
    margin-top: auto;
    background: var(--panel-bg);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.65em;
    margin-bottom: 8px;
}

.info-row:last-child {
    margin-bottom: 0;
}

.info-row label {
    color: var(--text-dim);
}

.status-online {
    color: var(--neon-green);
    font-weight: 800;
}

/* MAIN CONTENT COMPONENTS */
#simulation-canvas {
    width: 100%;
    height: 100%;
}


.diag-card {
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    padding: 15px;
    overflow: hidden;
}

/* COLUMN 1: ARCHITECTURE */
.circuit-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    padding: 10px;
    overflow: hidden;
}

.circuit-container svg {
    max-width: 100%;
    height: auto;
    display: block;
}

.gauge-svg-container svg {
    max-width: 100%;
    height: 100%;
}

.contribution-summary {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.summary-stat {
    flex: 1;
    background: var(--panel-bg);
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.summary-stat label {
    display: block;
    font-size: 0.6em;
    color: var(--text-dim);
    margin-bottom: 4px;
}

.summary-stat span {
    font-family: var(--font-mono);
    font-weight: 800;
    font-size: 1.1em;
}

/* COLUMN 2: ENGINEERING */
.gauges-flex {
    flex: 1;
    display: flex;
    gap: 15px;
    align-items: center;
    justify-content: center;
}

.gauge-wrapper {
    flex: 1;
    background: var(--panel-bg);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.gauge-svg-container {
    width: 100%;
    height: 120px;
}

.gauge-meta {
    font-size: 0.6em;
    color: var(--text-dim);
    margin-top: 10px;
    font-weight: 800;
}

.soc-compact-grid {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.soc-item {
    background: var(--panel-bg);
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.soc-label {
    font-size: 0.65em;
    font-weight: 800;
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
}

.soc-val {
    color: var(--neon-blue);
}

.soc-bar-outer {
    height: 4px;
    background: #000;
    border-radius: 2px;
    overflow: hidden;
}

.soc-bar-inner {
    height: 100%;
    width: 0%;
    background: var(--neon-green);
    transition: width 0.3s;
    box-shadow: 0 0 10px var(--neon-green);
}

/* COLUMN 3: ANALYTICS & LOG */
.charts-stack {
    height: 260px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chart-box {
    flex: 1;
    background: var(--panel-bg);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    padding: 8px;
}

.metadata-grid {
    margin-top: 10px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 5px;
}

.meta-row {
    background: var(--panel-header);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.65em;
    display: flex;
    justify-content: space-between;
}

.mono {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--neon-blue);
}

.integrated-log {
    margin-top: 15px;
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #000;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    min-height: 100px;
}

.log-header {
    font-size: 0.55em;
    padding: 4px 10px;
    background: var(--panel-header);
    color: var(--text-dim);
    font-family: var(--font-mono);
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 1px;
}

.log-container {
    flex: 1;
    padding: 8px;
    font-family: var(--font-mono);
    font-size: 0.65em;
    color: var(--neon-green);
    overflow-y: auto;
}

.log-entry {
    margin-bottom: 4px;
    opacity: 0.9;
}

.log-time {
    color: var(--text-dim);
    margin-right: 8px;
}

/* GLOBAL FOOTER: STATUS BAR */
#main-footer {
    height: 30px;
    background: #000;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 var(--gutter);
    gap: 30px;
}

.footer-item {
    font-family: var(--font-mono);
    font-size: 0.65em;
}

.footer-item .label {
    color: var(--text-dim);
    margin-right: 8px;
}

.footer-item .val {
    font-weight: 700;
    color: var(--text-main);
}

.val.neon-green {
    color: var(--neon-green);
}

.log-label {
    color: var(--neon-red);
    font-weight: 800;
    margin-right: 15px;
    flex-shrink: 0;
}

.log-scroller {
    flex: 1;
    overflow: hidden;
    white-space: nowrap;
}

.log-line {
    color: var(--neon-green);
    animation: slide-log 5s linear infinite;
}

/* ... existing styles ... */

@keyframes slide-log {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }

    10% {
        opacity: 1;
        transform: translateY(0);
    }

    90% {
        opacity: 1;
        transform: translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* RESPONSIVE MEDIA QUERIES */

@media (max-width: 1280px) {
    #workspace {
        grid-template-columns: 280px 1fr;
    }
}

@media (max-width: 1100px) {
    #diagnostic-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 1024px) {
    body, #app {
        height: auto;
        min-height: 100vh;
        overflow-y: auto;
    }

    #workspace {
        display: grid; /* Explicitly use grid for ordering */
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        overflow: visible;
        height: auto;
    }

    #sidebar {
        grid-column: 1;
        grid-row: 2; /* Fix order: Animation (1), Controls (2), Stats (3) */
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 30px var(--gutter);
    }

    #main-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        flex-wrap: wrap;
        height: auto;
        padding: 15px var(--gutter);
        gap: 15px;
        background: var(--bg-color);
        backdrop-filter: blur(10px);
    }

    .header-right {
        text-align: left;
        width: 100%;
    }

    #viz-area {
        grid-column: 1;
        grid-row: 1;
        width: 100%;
        height: 350px;
        min-height: 350px;
    }

    #diagnostic-grid {
        grid-column: 1;
        grid-row: 3;
        grid-template-columns: 1fr;
        overflow: visible;
        background: none;
    }

    .diag-card {
        min-height: auto;
        border-bottom: 1px solid var(--border-color);
    }

    .gauges-flex {
        flex-direction: column;
    }

    .gauge-wrapper {
        width: 100%;
    }

    .charts-stack {
        height: 400px;
    }

    .control-group label {
        width: 80px;
    }

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

    .btn-danger {
        grid-column: span 2;
    }

    #main-footer {
        flex-direction: column;
        height: auto;
        padding: 15px var(--gutter);
        gap: 10px;
        align-items: flex-start;
    }
}

/* TOUCH OPTIMIZATION */
@media (pointer: coarse) {
    button, input[type=range] {
        min-height: 44px; /* Apple/Google recommended touch target */
    }

    #throttle-input, #brake-input {
        height: 30px;
    }

    ::-webkit-scrollbar {
        width: 0px; /* Hide scrollbars on touch for cleaner look */
    }
}

/* OVERLAYS */
/* ... existing styles ... */
.surge-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 500;
}

.surge-overlay.active {
    opacity: 1;
}

.surge-content {
    background: rgba(248, 81, 73, 0.2);
    border: 2px solid var(--neon-red);
    padding: 20px 40px;
    border-radius: 100px;
    backdrop-filter: blur(15px);
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 0 50px rgba(248, 81, 73, 0.4);
    animation: flash 0.5s infinite alternate;
}

@keyframes flash {
    from {
        opacity: 0.7;
        scale: 0.95;
    }

    to {
        opacity: 1;
        scale: 1.05;
    }
}

/* SVG CLASSES */
.circuit-bus {
    stroke-width: 8;
    stroke: #30363d;
    stroke-linecap: round;
}

.circuit-path {
    fill: none;
    stroke-width: 4;
    stroke: #30363d;
}

.circuit-box {
    fill: #161b22;
    stroke: #30363d;
    stroke-width: 2;
    transition: filter 0.3s;
}

.circuit-text {
    fill: #c9d1d9;
    font-family: sans-serif;
    font-weight: bold;
    font-size: 14px;
}

.bus-box {
    fill: #21262d;
    stroke: #30363d;
    stroke-width: 2;
}

.bus-text {
    fill: #8b949e;
    font-family: sans-serif;
    font-size: 11px;
    font-weight: bold;
}

.flow-anim {
    fill: none;
    stroke-width: 4;
    stroke-dasharray: 10, 10;
    opacity: 0;
}

.flow-fwd-red {
    opacity: 1;
    stroke: var(--neon-red);
    animation: dash-fwd 1s linear infinite;
}

.flow-rev-green {
    opacity: 1;
    stroke: var(--neon-green);
    animation: dash-rev 1s linear infinite;
}

@keyframes dash-fwd {
    to {
        stroke-dashoffset: -20;
    }
}

@keyframes dash-rev {
    to {
        stroke-dashoffset: 20;
    }
}

::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}