.advance-service-tabs-wrapper {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    padding: 3rem 1rem;
    background-color: #f9fafb; /* Light grey background for contrast */
    border-top: 5px solid #a3e635; /* Added top accent bar */
}

.advance-service-tabs-wrapper .hidden {
    display: none;
}

.advance-service-tabs-wrapper .ast-main-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    color: #1f2937;
    margin-bottom: 3rem;
}

.advance-service-tabs-wrapper .ast-container {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.advance-service-tabs-wrapper .service-tabs-nav {
    background-color: #1f2937;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.advance-service-tabs-wrapper .ast-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.advance-service-tabs-wrapper .ast-nav-title {
    font-size: 1rem;
    font-weight: 700;
    color: #ffffff;
}

.advance-service-tabs-wrapper .ast-nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: #9ca3af;
    transition: color 0.2s ease-in-out;
    text-decoration: none;
}

.advance-service-tabs-wrapper .ast-nav-link:hover {
    color: #ffffff;
}

.advance-service-tabs-wrapper .ast-tabs-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.advance-service-tabs-wrapper .ast-tab-item {
    width: 100%;
    text-align: left;
    padding: 0.875rem 1rem;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    display: flex;
    align-items: center;
    background-color: transparent;
    color: #d1d5db;
    line-height: 1.2;
    fill: #9CA3AF;
}

.advance-service-tabs-wrapper .ast-tab-item:hover {
    background-color: #374151;
    color: #ffffff;
    border-top-left-radius: 12px;
    border-bottom-left-radius: 12px;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    transition: all 0.2s ease-in-out;
}

.advance-service-tabs-wrapper .ast-tab-item.active {
    background-color: #16a34a;
    color: #ffffff;
    font-weight: 600;
    fill: #22B573;
    border-top-left-radius: 12px;
    border-bottom-left-radius: 12px;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.advance-service-tabs-wrapper .ast-tab-item .ast-icon {
    width: 1.5rem;
    text-align: center;
    margin-right: 0.75rem;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.advance-service-tabs-wrapper .ast-tab-item .ast-icon svg {
    fill: currentColor;
    width: 100%;
    height: auto;
}

.advance-service-tabs-wrapper .ast-content-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #111827;
    margin: 0 0 1rem 0;
}

.advance-service-tabs-wrapper .ast-content-description {
    line-height: 1.6;
    color: #4b5563;
    margin: 0 0 2rem 0;
    font-size: 1rem;
}

.advance-service-tabs-wrapper .ast-tab-item:hover .ast-icon {
    fill: #22B573;
    color: #22B573;
}

/* ==== Image Grid ==== */
.advance-service-tabs-wrapper .ast-img-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;  /* ডেস্কটপে দুই কলাম */
    gap: 1rem;
    align-items: stretch;
    width: 100%;
    height: 50vh;                 /* ✅ ফুল স্ক্রিন উচ্চতা */
}

.advance-service-tabs-wrapper .ast-img-main,
.advance-service-tabs-wrapper .ast-img-thumbs .ast-thumb-item {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.advance-service-tabs-wrapper .ast-img-main img,
.advance-service-tabs-wrapper .ast-img-thumbs img {
    width: 100%;
    height: 100%;                  /* ✅ সমান উচ্চতা */
    object-fit: cover;             /* ✅ কভার মোড: ছবি টান হবে না */
    display: block;
}

.advance-service-tabs-wrapper .ast-img-thumbs {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: 1rem;
}

.advance-service-tabs-wrapper .ast-img-thumbs img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==== Responsive ==== */
@media (min-width: 1024px) {
    .advance-service-tabs-wrapper .ast-container {
        grid-template-columns: 1fr 2.5fr;
        gap: 3.5rem;
                padding-top: 73px;
    }
}

@media (max-width:1024px){
    .advance-service-tabs-wrapper .ast-img-grid {
        grid-template-columns: 1fr; /* ✅ এক কলামে নামবে */
        grid-template-rows: auto;
        height: auto;              /* ✅ মোবাইলে কনটেন্ট অনুযায়ী */
    }
    .advance-service-tabs-wrapper .ast-img-main img,
    .advance-service-tabs-wrapper .ast-img-thumbs img {
        height: auto;              /* ✅ মোবাইলে auto height */
    }
}

@media (max-width:640px){
    .advance-service-tabs-wrapper .ast-img-thumbs {
        grid-template-rows: auto;
        gap: .5rem;
    }
}