:root {
    --mouseX: 0;
    --mouseY: 0;
}

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

body {
    overflow: hidden;
    background-color: #050505;
    color: #fff;
    font-family: 'Courier New', Courier, monospace;
}

canvas {
    display: block;
}

/* ── Canvas mount ── */
#canvas-mount {
    position: fixed;
    inset: 0;
    z-index: 0;
}

/* ── UI Overlay ── */
.ui-overlay {
    position: fixed;
    inset: 0;
    z-index: 10;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem;
    transform: translate(calc(var(--mouseX) * 10px), calc(var(--mouseY) * 10px));
}

/* ── Header ── */
.header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    transform: translate(calc(var(--mouseX) * 20px), calc(var(--mouseY) * 15px));
}

.header-left {
    border-left: 4px solid #00ffff;
    padding-left: 1rem;
}

.header-left h1 {
    font-size: 2rem;
    font-weight: 900;
    font-style: italic;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    line-height: 1;
}

#pose-label {
    color: #00ffff;
    font-weight: bold;
    font-size: 0.85rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 0.25rem;
}

.header-right {
    text-align: right;
    font-size: 0.65rem;
    opacity: 0.4;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    line-height: 1.6;
}

/* ── Menu Buttons ── */
.menu {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 18rem;
    pointer-events: auto;
    transform: translate(calc(var(--mouseX) * -30px), calc(var(--mouseY) * -20px));
}

.menu-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: none;
    border: none;
    color: #fff;
    font-family: inherit;
    cursor: pointer;
    text-align: left;
    padding: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-btn:hover {
    transform: translateX(0.5rem);
}

.menu-btn .number {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    font-weight: bold;
    flex-shrink: 0;
    transition: background 0.2s ease, color 0.2s ease;
}

.menu-btn:hover .number {
    background: #fff;
    color: #000;
}

.menu-btn .label {
    font-size: 1.1rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    opacity: 0.5;
    transition: opacity 0.2s ease;
}

.menu-btn:hover .label {
    opacity: 1;
}

.menu-btn.active .number {
    background: #00ffff;
    color: #000;
    border-color: #00ffff;
}

.menu-btn.active .label {
    opacity: 1;
    color: #00ffff;
}