:root {
    --bg-dark: #08090c;
    --accent-orange: #f26522;
    --accent-gold: #d4af37;
    --text-main: #f0f2f5;
    --text-muted: #8a939e;
    --font-primary: 'Inter', system-ui, sans-serif;
    --font-heading: 'Outfit', system-ui, sans-serif;
    --font-mono: 'Fira Code', 'Share Tech Mono', monospace;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-dark);
    font-family: var(--font-primary);
    color: var(--text-main);
}

#app {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    display: flex;
    background: radial-gradient(circle at 50% 45%, #121820 0%, #07090c 100%);
}

/* 3D Canvas Viewport */
#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: grab;
    touch-action: none;
}

#canvas {
    width: 100%;
    height: 100%;
    display: block;
    border: 0 none;
    outline: none;
}

#canvas-container.grabbing {
    cursor: grabbing;
}

/* HUD Tooltip */
.hud-tooltip {
    position: absolute;
    z-index: 100;
    pointer-events: none;
    transform: translate(-50%, -120%);
    background: rgba(10, 12, 16, 0.92);
    border: 1px solid var(--accent-orange);
    padding: 8px 14px;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: opacity 0.15s ease;
}

.hud-tooltip.hidden {
    opacity: 0;
    visibility: hidden;
}

.hud-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--accent-orange);
}

.hud-value {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
}