/* Đường phố lễ hội */
.festival-arena {
    height: 160px;
    background: linear-gradient(180deg, #1a237e 0%, #3949ab 60%, #b71c1c 60%, #d32f2f 100%);
    box-shadow: inset 0 0 15px rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
}

.night-sky {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 60%;
    z-index: 1;
}

.star {
    position: absolute;
    font-size: 1rem;
    animation: twinkle 1.5s infinite alternate;
}

@keyframes twinkle {
    0% { opacity: 0.3; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1.2); }
}

/* Lồng đèn */
.lantern {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-60%);
    font-size: 4rem;
    z-index: 2;
    filter: drop-shadow(0 0 10px #ffeb3b);
    animation: swing 2s ease-in-out infinite alternate;
    transform-origin: top center;
}

@keyframes swing {
    0% { transform: translateY(-60%) rotate(-10deg); }
    100% { transform: translateY(-60%) rotate(10deg); }
}

/* Rồng múa */
.dragon {
    position: absolute;
    left: 2%;
    top: 50%;
    transform: translateY(-40%);
    font-size: 4.5rem;
    z-index: 3;
    filter: drop-shadow(2px 4px 2px rgba(0,0,0,0.5));
    transition: left 0.7s cubic-bezier(0.34, 1.56, 0.64, 1), top 0.3s ease-in-out;
}

/* Lỗi rung lắc */
.shake-error { animation: shake-dragon 0.4s; }
@keyframes shake-dragon {
    0% { transform: translateY(-40%) translateX(0); }
    25% { transform: translateY(-40%) translateX(-10px) rotate(-5deg); }
    50% { transform: translateY(-40%) translateX(10px) rotate(5deg); }
    75% { transform: translateY(-40%) translateX(-10px) rotate(-5deg); }
    100% { transform: translateY(-40%) translateX(0); }
}

.min-h-75 { min-height: 85px; }
.hl-num { color: #d32f2f; font-weight: 900; font-size: 1.2em; }