/* Flash Sale Styles */
.flash-sale-hero {
    background: linear-gradient(135deg, #0f766e 0%, #115e59 100%);
    color: #ecfeff;
    padding: 2.5rem 0;
    margin-bottom: 2rem;
    border-radius: 22px;
    position: relative;
    overflow: hidden;
}

.flash-sale-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(400px 180px at 20% 20%, rgba(255,255,255,0.25), transparent);
    pointer-events: none;
}

.countdown-container {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 1rem 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(12px);
}

.filter-section {
    background: var(--surface);
    border-radius: 16px;
    padding: 1.25rem;
    border: 1px solid var(--outline);
    box-shadow: var(--shadow-md);
}

.category-btn {
    border: 1px solid var(--outline);
    background: #ffffff;
    color: var(--ink);
    border-radius: 999px;
    padding: 0.45rem 1rem;
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 600;
}

.category-btn:hover,
.category-btn.active {
    border-color: var(--accent);
    background: var(--accent);
    color: #ffffff;
}

.view-btn {
    padding: 0.5rem;
    border: 1px solid var(--outline);
    background: #ffffff;
    border-radius: 10px;
    color: var(--muted);
    transition: all 0.2s ease;
}

.view-btn:hover,
.view-btn.active {
    background: var(--primary);
    color: var(--primary-ink);
    border-color: var(--primary);
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state i {
    font-size: 3.5rem;
    color: #cbd5f5;
}

@media (max-width: 768px) {
    .countdown-container {
        padding: 0.75rem;
    }
}

@media (max-width: 576px) {
    .flash-sale-hero {
        padding: 1.75rem 1rem;
        border-radius: 18px;
    }

    .countdown-container {
        padding: 0.6rem;
    }
}