/* ===== COLOR — Royale Violet ===== */
#game-color {
    --rv-gold: #f5c451;
    --rv-gold-bright: #ffd76a;
    --rv-violet: #8b5cf6;
    --rv-text: #f5f0ff;
    --rv-text2: #a79fc2;
    --rv-text3: #6f6794;
    font-family: -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--rv-text);
}
#game-color .game-body { flex-shrink: 0; }

.rv-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 4px 0 10px;
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: -0.01em;
    color: var(--rv-text);
}
.rv-title-icon3d {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    object-fit: cover;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5), 0 0 14px rgba(139, 92, 246, 0.35);
}

.rv-stage {
    --acc: #ef4444;
    position: relative;
    border-radius: 20px;
    padding: 26px 12px;
    background:
        radial-gradient(120% 90% at 50% 0%, color-mix(in srgb, var(--acc) 12%, transparent), transparent 60%),
        linear-gradient(165deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(245, 196, 81, 0.22);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    overflow: hidden;
    display: flex;
    justify-content: center;
}

/* ---------- history strip ---------- */
.color-history {
    display: flex;
    gap: 6px;
    justify-content: center;
    flex-wrap: wrap;
    min-height: 30px;
    margin-bottom: 10px;
}
.color-history-item {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 900;
    color: #fff;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    animation: color-chip-in 0.3s ease both;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
@keyframes color-chip-in {
    from { transform: scale(0.4); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}
.color-history-item.red { background: radial-gradient(circle at 35% 30%, #f87171, #dc2626 72%); }
.color-history-item.black { background: radial-gradient(circle at 35% 30%, #4b5563, #111318 72%); border: 1px solid rgba(255, 255, 255, 0.2); }

/* ---------- the big reveal disc ---------- */
.color-display {
    width: 190px;
    height: 190px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4.2rem;
    font-weight: 900;
    color: #fff;
    text-shadow: 0 3px 10px rgba(0, 0, 0, 0.5);
    background: radial-gradient(circle at 38% 32%, rgba(255, 255, 255, 0.14), transparent 55%),
        linear-gradient(160deg, #3a2a63, #1a1030);
    border: 2px solid rgba(245, 196, 81, 0.4);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.55), 0 0 30px rgba(139, 92, 246, 0.25), inset 0 2px 6px rgba(255, 255, 255, 0.12);
    transition: background 0.3s ease;
}
.color-display.red {
    background: radial-gradient(circle at 38% 32%, rgba(255, 255, 255, 0.25), transparent 55%),
        linear-gradient(160deg, #f87171, #b91c1c);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.55), 0 0 36px rgba(239, 68, 68, 0.45), inset 0 2px 6px rgba(255, 255, 255, 0.25);
}
.color-display.black {
    background: radial-gradient(circle at 38% 32%, rgba(255, 255, 255, 0.14), transparent 55%),
        linear-gradient(160deg, #4b5563, #0f1115);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.55), 0 0 30px rgba(0, 0, 0, 0.6), inset 0 2px 6px rgba(255, 255, 255, 0.12);
}
.color-display.flipping { animation: color-spin 0.6s cubic-bezier(0.3, 0.6, 0.4, 1); }
@keyframes color-spin {
    0% { transform: rotateY(0) scale(1); }
    50% { transform: rotateY(540deg) scale(1.12); }
    100% { transform: rotateY(1080deg) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
    .color-display.flipping { animation: none; }
    .color-history-item { animation: none; }
}
@media (max-width: 340px) {
    .color-display { width: 160px; height: 160px; font-size: 3.4rem; }
}