/* ============================================================
   Quality Slider Widget
   Two-column: large current image (left) + content & preview (right)
   ============================================================ */

.tekcom-quality-slider {
    width: 100%;
}

/* ── Two-column grid ── */
.tqs-layout {
    display: grid;
    grid-template-columns: 58fr 42fr;
    /* Khoảng cách giữa 2 cột */
    column-gap: 80px;
}

/* ── Left column: main image ── */
.tqs-image-col {
    min-width: 0;
    position: relative;
    /* positioning context cho track */
}

/* Track fill toàn bộ col — col do grid quyết định chiều cao */
.tqs-image-track {
    position: absolute;
    inset: 0;
    overflow: hidden;
    perspective: 1200px;
}

/* ── Flip cards: outer wrappers (slide animation target) ── */
.tqs-card-current,
.tqs-card-incoming,
.tqs-prev-card,
.tqs-prev-card-incoming {
    position: absolute;
    inset: 0;
}

.tqs-card-incoming,
.tqs-prev-card-incoming {
    display: none;
    z-index: 2;
}

/* ── Flip inner (hover rotation target) ── */
.tqs-card-inner {
    position: absolute;
    inset: 0;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

/* Flip on hover — main image */
.tqs-image-track:hover .tqs-card-current .tqs-card-inner {
    transform: rotateY(180deg);
}

/* Flip on hover — preview image */
.tqs-preview-wrap:hover .tqs-prev-card .tqs-card-inner {
    transform: rotateY(180deg);
}

/* ── Faces ── */
.tqs-face-front,
.tqs-face-back {
    position: absolute;
    inset: 0;
    overflow: hidden;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    mask-image: radial-gradient(white, black);
}

.tqs-face-front {
    transform: translateZ(1px);
}

.tqs-face-back {
    transform: rotateY(180deg) translateZ(1px);
}

.tqs-face-front img,
.tqs-face-back img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Reduce-motion */
@media (prefers-reduced-motion: reduce) {
    .tqs-card-inner {
        transition: none !important;
    }
}

/* Elementor editor flattens 3D context → backface-visibility won't work.
   Hide back faces explicitly in edit mode. */
body.elementor-edit-mode .tqs-face-back {
    display: none;
}

/* ── Right column ── */
.tqs-content-col {
    gap: 16px;
    display: flex;
    flex-direction: column;
    background-color: #ffffff;
}

/* Content area */
.tqs-content-wrap {
    flex: 1;
    /* padding: 0 40px 16px; */
    display: flex;
    flex-direction: column;
}

/* ── Title ── */
.tqs-title {
    font-size: clamp(1.5rem, 2.2vw, 2.25rem);
    font-weight: 700;
    color: #193250;
    line-height: 1.2;
    margin: 0 0 1.25rem;
    transition: opacity 0.25s ease, transform 0.25s ease;
    position: relative;
    isolation: isolate;
}

/* Light-blue decorative square — em units scale with font-size at every breakpoint */
.tqs-title::before {
    content: '';
    position: absolute;
    top: -0.25em;
    left: -0.2em;
    width: 1.5em;
    height: 1.5em;
    background: #eaf6ff;
    z-index: -1;
    pointer-events: none;
}

.tqs-title.tqs-fading {
    opacity: 0;
    transform: translateY(8px);
}

/* ── Description ── */
.tqs-description {
    font-size: 0.95rem;
    color: #4A5568;
    line-height: 1.7;
    /* margin-bottom: 2rem; */
    flex: 1;
    transition: opacity 0.25s ease;
}

.tqs-description.tqs-fading {
    opacity: 0;
}

.tqs-description p {
    margin: 0;
}

/* ── Navigation ── */
.tqs-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
    /* padding: 0 40px 1rem; */
    margin-bottom: 1.5em;
}

.tqs-nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1.5px solid rgba(25, 50, 80, 0.2);
    background: transparent;
    color: #AFB0B3;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.tqs-nav-btn:hover {
    color: #193250;
}

.tqs-icon-next {
    display: block;
    transform: scaleX(-1);
}

/* ── Preview image (next slide) ── */
.tqs-preview-wrap {
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
    height: 260px;
    /* margin: 0 clamp(1.5rem, 3vw, 3rem); */
    perspective: 1200px;
}

.tqs-preview-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 3;
    pointer-events: none;
}

/* (preview card structure defined above with shared flip classes) */

/* ── Reversed layout: image right, content left ── */
.tqs-layout--reversed .tqs-image-col {
    order: 2;
}

.tqs-layout--reversed .tqs-content-col {
    order: 1;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .tqs-layout {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {

    /* !important cần thiết để override Elementor selector có specificity cao hơn */
    .tqs-layout {
        grid-template-columns: 1fr !important;
        column-gap: 0 !important;
        min-height: 0 !important;
    }

    /* Cho image col có chiều cao trên mobile (track là absolute) */
    .tqs-image-col {
        aspect-ratio: 4 / 3;
    }

    /* Ẩn preview trên mobile */
    .tqs-preview-wrap {
        display: none;
    }

    /* Đưa nav lên trên content: order -1 < content-wrap order 0 */
    .tqs-nav {
        order: -1;
        justify-content: center;
        padding: 1rem 0;
    }

    /* Khi đảo cột, nav phải nằm SAU text (giữa text và image) */
    .tqs-layout--reversed .tqs-nav {
        order: 1;
    }

    .tqs-content-wrap {
        order: 0;
        padding: 1rem 0 0;
    }
}