:root {
    --brass: #b5a642;
    --light-cyan: #dcf3f0;
    --antique-white: #ffe9d3;
    --antique-white-light: #fdf9f3;
    --cafe-noir: #4e3822;
    --dark-sienna: #230c0f;
    --flame: #d45113;
    --polished-pine: #4ea699;
    --puce: #d496a7;
    --english-violet: #51355a;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--dark-sienna);
    color: var(--antique-white-light);
    height: 100vh;
    overflow: hidden;
}

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

/* Tabs */
.tabs {
    background: var(--cafe-noir);
    display: flex;
    gap: 2px;
    padding: 0;
    border-bottom: 2px solid var(--brass);
}

.tab {
    background: rgba(78, 56, 34, 0.6);
    border: none;
    color: var(--antique-white);
    padding: 12px 24px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    border-top: 2px solid transparent;
}

.tab:hover {
    background: rgba(78, 56, 34, 0.9);
    color: var(--antique-white-light);
}

.tab.active {
    background: var(--dark-sienna);
    color: var(--antique-white-light);
    border-top-color: var(--brass);
}

/* Content */
.content {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.view {
    display: none;
    height: 100%;
}

.view.active {
    display: block;
}

/* Drivetrain view needs padding */
#drivetrain-view {
    padding: 20px;
    overflow: auto;
}

/* Drivetrain view */
.drivetrain-container {
    display: grid;
    grid-template-columns: 320px 1fr;
    grid-template-rows: 400px 1fr;
    gap: 20px;
    height: calc(100vh - 90px);
}

.controls {
    background: var(--cafe-noir);
    padding: 20px;
    border-radius: 8px;
    overflow-y: auto;
    border: 1px solid rgba(181, 166, 66, 0.3);
}

.race-sim-view {
    background: var(--cafe-noir);
    border-radius: 8px;
    border: 1px solid rgba(181, 166, 66, 0.3);
    position: relative;
    overflow: hidden;
}

.charts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: minmax(250px, 1fr);
    gap: 15px;
    overflow-y: auto;
}

.chart-container {
    background: var(--cafe-noir);
    padding: 15px;
    border-radius: 8px;
    min-height: 0;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(181, 166, 66, 0.3);
}

.chart-container > canvas {
    flex: 1;
    min-height: 0;
}

.chart-container h3 {
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--brass);
    font-weight: 500;
    flex-shrink: 0;
}

/* Controls */
.control-section {
    margin-bottom: 25px;
}

.control-section h3 {
    color: var(--antique-white-light);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--brass);
    letter-spacing: 0.5px;
}

.control-group {
    margin-bottom: 15px;
}

.control-group label {
    display: block;
    font-size: 13px;
    color: var(--antique-white);
    margin-bottom: 6px;
}

.control-group input[type="range"] {
    width: 100%;
    height: 6px;
    background: rgba(35, 12, 15, 0.5);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--brass);
    cursor: pointer;
    border-radius: 50%;
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--brass);
    cursor: pointer;
    border-radius: 50%;
    border: none;
}

.control-group .value {
    display: inline-block;
    font-size: 12px;
    color: var(--brass);
    font-weight: 500;
    min-width: 80px;
    text-align: right;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--dark-sienna);
}

::-webkit-scrollbar-thumb {
    background: var(--brass);
    border-radius: 5px;
}

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