/* ==========================================================================
   Members Section — "Tập đoàn thành viên"
   Horizontal row of brand cards with hover state (red overlay + scroll-up desc)
   ========================================================================== */

.members-section {
    background-color: var(--color-white);
    padding: 80px 0;
    overflow: hidden;
}

.members-section__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 16px;
}

.members-section__title {
    margin: 0 0 48px;
    color: var(--color-black, #111);
    font-family: var(--font-base);
    font-weight: 500;
    font-size: 32px;
    line-height: 1.2;
    text-align: center;
}

.members-section__row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

/* ---- Card --------------------------------------------------------------- */
.member-card {
    position: relative;
    display: block;
    overflow: hidden;
    aspect-ratio: 220 / 460;
    background-color: var(--color-neutral-100);
    text-decoration: none;
    color: inherit;
    transition: flex 0.4s ease;
}

.member-card__bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 50%;
    z-index: 0;
    transition: transform 0.6s ease, filter 0.4s ease;
}

/* Vị trí ảnh từng card — object-position: X Y
   X (ngang): 0% = trái, 50% = giữa, 100% = phải
   Y (dọc):   0% = trên, 50% = giữa, 100% = dưới
   Chỉnh % theo ý muốn để nhích ảnh. */
.member-card__bg[src$="1-optimized.jpg"]                    { object-position: 50% 50%; }
.member-card__bg[src$="2-optimized.jpg"]                    { object-position: 50% 50%; }
.member-card__bg[src$="5-optimized.jpg"]                    { object-position: 50% 50%; }
.member-card__bg[src$="3-optimized.jpg"]                    { object-position: 50% 50%; }
.member-card__bg[src$="7-optimized.jpg"]                    { object-position: 50% 50%; }
.member-card__bg[src$="6-optimized.jpg"]                    { object-position: 50% 50%; }
.member-card__bg[src$="4-optimized.jpg"]                    { object-position: 50% 50%; }

.member-card__overlay-red {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 55%;
    background-color: var(--member-color, #C0202A);
    -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.5) 8%, #000 20%);
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.5) 8%, #000 20%);
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 0.4s ease, transform 0.5s ease;
    z-index: 1;
}

.member-card__head {
    position: relative;
    z-index: 2;
    padding: 24px 5px 80px;
    text-align: center;
    background: linear-gradient(180deg,
            rgba(255, 255, 255, 1) 0%,
            rgba(255, 255, 255, 1) 45%,
            rgba(255, 255, 255, 0.85) 75%,
            rgba(255, 255, 255, 0.4) 92%,
            rgba(255, 255, 255, 0) 100%);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 75%, rgba(0, 0, 0, 0.6) 90%, rgba(0, 0, 0, 0) 100%);
    mask-image: linear-gradient(180deg, #000 0%, #000 75%, rgba(0, 0, 0, 0.6) 90%, rgba(0, 0, 0, 0) 100%);
    transition: opacity 0.4s ease;
}

.member-card__category {
    display: block;
    margin-bottom: 10px;
    font-family: var(--font-base);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--member-color, #C0202A);
    transition: color 0.4s ease;
}

.member-card__logo {
    display: block;
    margin: 0 auto;
    width: auto;
    height: auto;
    object-fit: contain;
}

/* 1. THACO */
.member-card__logo[src$="thaco.svg"] {
    height: 17px;
    width: auto;
    margin-top: 12px;
}

/* 2. THACO AUTO */
.member-card__logo[src$="thaco-auto.svg"] {
    height: 20px;
    width: auto;
    padding: 0 10px;
}

/* 3. THACO AGRI */
.member-card__logo[src$="thaco-agri.svg"] {
    height: 21px;
    width: auto;
    padding: 0 10px;
}

/* 4. THACO INDUSTRIES */
.member-card__logo[src$="thaco-industries.svg"] {
    height: 37px;
    width: auto;
    margin-top: 14px;
    padding: 0 10px;
}

/* 5. Đại Quang Minh */
.member-card__logo[src$="dai-quang-minh.svg"] {
    height: 25px;
    width: auto;
    margin-top: -2px;
}

/* 6. THISO */
.member-card__logo[src$="thiso.svg"] {
    height: 20px;
    width: auto;
}

/* 7. THILOGI */
.member-card__logo[src$="thilogi.svg"] {
    height: 29px;
    width: auto;
    margin-top: -3px;
}

.member-card__desc {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 72px;
    z-index: 2;
    padding: 0 10px;
    max-height: 42%;
    overflow: hidden;
    transform: translateY(100%);
    opacity: 0;
    transition: transform 0.5s ease, opacity 0.4s ease;
    color: var(--color-white);
}

.member-card__desc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.member-card__desc-list li {
    font-family: var(--font-base);
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-white);
    padding: 4px 0;
}

.member-card__cta {
    position: absolute;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%);
    z-index: 2;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-white);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--member-color, var(--color-primary));
    transition: background-color 0.4s ease, color 0.4s ease;
}

.member-card__cta svg {
    width: 16px;
    height: 16px;
}

/* ---- Hover state -------------------------------------------------------- */
.member-card:hover .member-card__bg,
.member-card:focus-visible .member-card__bg {
    transform: scale(1.05);
}

.member-card:hover .member-card__overlay-red,
.member-card:focus-visible .member-card__overlay-red {
    opacity: 0.95;
    transform: translateY(0);
}

.member-card:hover .member-card__desc,
.member-card:focus-visible .member-card__desc {
    transform: translateY(0);
    opacity: 1;
}

.member-card:hover .member-card__cta,
.member-card:focus-visible .member-card__cta {
    background-color: var(--color-white);
    color: var(--member-color, #C0202A);
}

/* Full-cover transparent hit layer: giữ :hover ổn định trên toàn bộ card.
   Card lật bằng rotateY(180deg) + backface-visibility:hidden khiến mặt trước
   (vùng __head phía trên) quay ra sau và không bắt được chuột sau khi lật →
   di chuột vào vùng đó làm mất hover và card nhấp nháy. Lớp ::after này không
   bị ẩn mặt sau nên luôn nhận chuột ở cả hai trạng thái, hover ở đâu cũng flip. */
.member-card:not(.member-card--static)::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 5;
}

/* Static variant: no description, no hover transform. */
.member-card--static {
    cursor: default;
}

.member-card--static:hover .member-card__bg,
.member-card--static:focus-visible .member-card__bg {
    transform: none;
}

/* ==========================================================================
   Flip-card hover variant
   - Front: bg image + white head (logo + category)
   - Back: colored panel + description list + CTA
   ========================================================================== */
.members-section__row {
    perspective: 1400px;
}

.member-card {
    transform-style: preserve-3d;
    transition: transform 0.7s ease;
    overflow: visible;
}

/* Front face */
.member-card__bg,
.member-card__head {
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* Back face: rotated 180° around Y so it's only visible after the card flips */
.member-card__overlay-red,
.member-card__desc,
.member-card__cta {
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.member-card__overlay-red,
.member-card:hover .member-card__overlay-red,
.member-card:focus-visible .member-card__overlay-red {
    top: 0;
    height: 100%;
    opacity: 1;
    transform: rotateY(180deg);
    -webkit-mask-image: none;
    mask-image: none;
    transition: none;
}

.member-card__desc,
.member-card:hover .member-card__desc,
.member-card:focus-visible .member-card__desc {
    top: 96px;
    bottom: 80px;
    max-height: none;
    opacity: 1;
    transform: rotateY(180deg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: none;
}

.member-card__cta {
    transform: translateX(-50%) rotateY(180deg);
}

/* Flip the whole card on hover (non-static cards only) */
.member-card:not(.member-card--static):hover,
.member-card:not(.member-card--static):focus-visible {
    transform: rotateY(180deg);
}

/* Disable the previous bg scale-on-hover so the flip looks clean */
.member-card:not(.member-card--static):hover .member-card__bg,
.member-card:not(.member-card--static):focus-visible .member-card__bg {
    transform: none;
}

/* ---- Responsive --------------------------------------------------------- */
@media (min-width: 576px) {
    .members-section__row {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 992px) {
    .members-section {
        padding: 40px 0;
    }

    .members-section__container {
        padding: 0 40px;
    }

    .members-section__title {
        font-size: 44px;
        margin-bottom: 64px;
    }

    .members-section__row {
        grid-template-columns: repeat(7, minmax(0, 1fr));
        gap: 0;
    }

    .member-card {
        aspect-ratio: auto;
        height: 480px;
    }
}

@media (min-width: 1200px) {
    .members-section__title {
        font-size: 54px;
    }
}