.ac-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin: 0 auto;
    border-radius: 12px;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

.ac-timer-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    width: 100%;
    flex-wrap: wrap;
}

.ac-segment {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    border-radius: 10px;
    min-width: 90px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.ac-number {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
    text-shadow: 0 0 10px rgba(255,255,255,0.2);
    display: block;
}

.ac-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 10px;
    font-weight: 600;
}

.ac-separator {
    font-size: 3rem;
    font-weight: bold;
    color: inherit;
    opacity: 0.5;
    animation: blink 2s infinite;
}

.ac-wrapper.is-urgent .ac-number {
    color: #ff3333 !important;
    text-shadow: 0 0 15px rgba(255,51,51,0.5);
    animation: pulse 1s infinite;
}

.ac-wrapper.is-approaching .ac-number {
    color: #ffaa00 !important;
}

.ac-message {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    padding: 20px;
    animation: slideUp 0.5s ease-out forwards;
}

@keyframes blink {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0; }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .ac-segment { min-width: 60px; padding: 15px 10px; }
    .ac-number { font-size: 2rem; }
    .ac-label { font-size: 0.7rem; }
    .ac-separator { font-size: 2rem; margin: 0 5px; }
}