width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 9999;
    background: #000;
}

.arcade-nav {
    height: 50px;
    background: #101014;
    border-bottom: 1px solid #222230;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
}

.modern-back-btn {
    background: #1c1c24;
    border: 1px solid #333344;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s;
}

.modern-back-btn:hover {
    background: #282836;
}

.modern-back-btn .arrow {
    font-size: 1.1rem;
    line-height: 1;
}

.nav-logo {
    font-size: 0.55rem;
    color: var(--neon-pink);
}

#game-frame {
    flex-grow: 1;
    width: 100%;
    height: calc(100% - 50px);
    background: #000;
}

.hidden {
    display: none !important;
}