.biz-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

@media (min-width: 640px) {
    .biz-grid { grid-template-columns: repeat(5, 1fr); }
}

@media (min-width: 768px) {
    .biz-grid { grid-template-columns: repeat(6, 1fr); }
}

.biz-card {
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem;
    border-radius: 0.75rem;
    border: 2px solid #e5e7eb;
    background: linear-gradient(145deg, #ffffff 0%, #f9fafb 100%);
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.3;
    text-align: center;
    color: #1f2937;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 6px 0 rgb(0 0 0 / 0.07), 0 1px 2px 0 rgb(0 0 0 / 0.04);
    position: relative;
    overflow: hidden;
}

.biz-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgb(251 191 36 / 0.15) 0%, rgb(217 119 6 / 0.2) 100%);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.biz-card span {
    position: relative;
    z-index: 1;
}

.biz-card:hover {
    border-color: var(--color-primary-400, #fbbf24);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px 0 rgb(0 0 0 / 0.1), 0 2px 4px 0 rgb(0 0 0 / 0.05);
    color: #92400e;
}

.biz-card:hover::before {
    opacity: 1;
}

.biz-card:active {
    transform: translateY(0);
}

.biz-card:focus {
    outline: none;
    border-color: var(--color-primary-500, #f59e0b);
    box-shadow: 0 0 0 3px rgb(245 158 11 / 0.3);
}

.dark .biz-card {
    border-color: #374151;
    background: linear-gradient(145deg, #1f2937 0%, #111827 100%);
    color: #f3f4f6;
}

.dark .biz-card:hover {
    border-color: var(--color-primary-400, #fbbf24);
    color: #ffffff;
}

.biz-search {
    margin-bottom: 1.25rem;
    width: 100%;
    border-radius: 0.5rem;
    border: 1px solid #d1d5db;
    background-color: #ffffff;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    color: #374151;
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

.biz-search:focus {
    outline: none;
    border-color: var(--color-primary-500, #f59e0b);
    box-shadow: 0 0 0 2px var(--color-primary-500, #f59e0b);
}

.dark .biz-search {
    border-color: #4b5563;
    background-color: #1f2937;
    color: #e5e7eb;
}

.biz-card--selected {
    border-color: #d97706 !important;
    background: linear-gradient(135deg, rgb(251 191 36 / 0.25) 0%, rgb(217 119 6 / 0.3) 100%) !important;
    color: #92400e !important;
    box-shadow: 0 0 0 2px #d97706 !important;
}

.biz-confirm-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.5rem;
    border-radius: 0.5rem;
    background-color: #d97706;
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease;
    min-width: 6rem;
}

.biz-confirm-btn:hover { background-color: #b45309; }
.biz-confirm-btn:disabled { opacity: 0.6; cursor: not-allowed; }