#developer-menu {
    position: fixed;
    top: 14px;
    right: 14px;
    z-index: 9999;
    font-family: 'Nunito', sans-serif;
}

#developer-menu-toggle {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(30, 30, 40, 0.75);
    border: 1.5px solid rgba(255, 255, 255, 0.25);
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    transition: background 0.2s ease, transform 0.2s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    margin-left: auto;
}

#developer-menu-toggle:hover {
    background: rgba(50, 50, 70, 0.9);
    transform: rotate(45deg);
}

#developer-menu-toggle.is-open {
    transform: rotate(90deg);
    background: rgba(70, 30, 100, 0.85);
}

#developer-menu-panel {
    display: none;
    margin-top: 8px;
    background: rgba(18, 18, 30, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    padding: 14px;
    min-width: 210px;
    backdrop-filter: blur(16px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    animation: devMenuSlideIn 0.2s ease;
}

@keyframes devMenuSlideIn {
    from { opacity: 0; transform: translateY(-8px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

#developer-menu-panel.is-visible {
    display: block;
}

.dev-menu-title {
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255,255,255,0.35);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dev-menu-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
}

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

.dev-menu-group-label {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.25);
    margin-bottom: 2px;
}

.dev-btn {
    padding: 7px 12px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.8);
    font-family: 'Nunito', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    text-align: left;
    transition: background 0.15s ease, color 0.15s ease;
    display: flex;
    align-items: center;
    gap: 7px;
    white-space: nowrap;
}

.dev-btn:hover {
    background: rgba(255,255,255,0.14);
    color: white;
}

.dev-btn:active {
    background: rgba(255,255,255,0.08);
}

.dev-btn.is-active {
    background: rgba(76, 175, 80, 0.25);
    border-color: rgba(76, 175, 80, 0.5);
    color: #A5D6A7;
}

.dev-btn.is-muted {
    background: rgba(239, 83, 80, 0.2);
    border-color: rgba(239, 83, 80, 0.4);
    color: #FFCDD2;
}

.dev-scene-indicator {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.4);
    text-align: center;
    padding: 4px 0 2px;
}