/* ==========================================================================
   Page: Trang chủ (Home)
   Chỉ chứa layout/style thực sự đặc thù cho page — không copy style của
   Navigation, Button, Footer (theo pages/README.md). Component-local pattern
   (value card, process, trust) được viết riêng cho page này để không phụ
   thuộc CSS của page khác, theo cùng token system với about.css/contact.css.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Hero
   Không có ảnh thật cho trang chủ ở thời điểm này -> dùng nền navy + hoạ
   tiết lưới nhẹ (cùng pattern đã dùng ở about-intro--no-image), tránh hero
   quá lớn (design_system.md §10) và tránh dùng ảnh stock.
   -------------------------------------------------------------------------- */
/* ==========================================================================
   1. HOME HERO
   ========================================================================== */

.home-hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    background-color: var(--color-surface-tinted);
    border-bottom: var(--border-width-sm) solid var(--color-border);
}

/* Grid pattern nhẹ giống tinh thần About intro */
.home-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;

    background-image:
            linear-gradient(
                    color-mix(in srgb, var(--color-action-primary) 5%, transparent) 1px,
                    transparent 1px
            ),
            linear-gradient(
                    90deg,
                    color-mix(in srgb, var(--color-action-primary) 5%, transparent) 1px,
                    transparent 1px
            );

    background-size: 60px 60px;
}


/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.home-hero__grid {
    display: grid;
    gap: var(--space-12);
    align-items: center;

    padding-block: var(--space-12);
}

.home-hero__content {
    max-width: 680px;
}


/* --------------------------------------------------------------------------
   Badge
   -------------------------------------------------------------------------- */

.home-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);

    margin-bottom: var(--space-6);
    padding: var(--space-2) var(--space-4);

    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);

    color: var(--color-action-primary);
    background-color: var(--color-surface);

    border: var(--border-width-sm) solid
    color-mix(in srgb, var(--color-action-primary) 18%, transparent);

    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

.home-hero__badge-dot {
    width: 7px;
    height: 7px;
    flex: 0 0 auto;

    background-color: var(--color-action-accent);
    border-radius: var(--radius-full);
}


/* --------------------------------------------------------------------------
   Content
   -------------------------------------------------------------------------- */

.home-hero__title {
    max-width: 680px;
}

.home-hero__accent {
    color: var(--color-action-primary);
}

.home-hero__lead {
    max-width: 640px;
    margin-top: var(--space-6);
}

.home-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);

    margin-top: var(--space-8);
}

.home-hero__actions svg {
    width: var(--icon-size-sm);
    height: var(--icon-size-sm);
    flex: 0 0 auto;
}


/* ==========================================================================
   HERO STATS
   ========================================================================== */

.home-hero__stats {
    display: grid;
    gap: var(--space-4);

    margin: 0;
    padding: 0;
    list-style: none;
}


/* --------------------------------------------------------------------------
   Stat card
   -------------------------------------------------------------------------- */

.home-stat {
    display: flex;
    align-items: center;
    gap: var(--space-4);

    min-width: 0;
    padding: var(--space-6);

    background-color: var(--color-surface);

    border: var(--border-width-sm) solid var(--color-border);
    border-radius: var(--radius-lg);

    box-shadow: var(--shadow-sm);
}


/* --------------------------------------------------------------------------
   Icon
   -------------------------------------------------------------------------- */

.home-stat__icon {
    display: grid;
    place-items: center;

    width: 48px;
    height: 48px;
    flex: 0 0 48px;

    color: var(--color-action-primary);

    background-color:
            color-mix(
                    in srgb,
                    var(--color-action-primary) 9%,
                    var(--color-surface)
            );

    border-radius: var(--radius-lg);
}

.home-stat__icon svg {
    width: var(--icon-size-lg);
    height: var(--icon-size-lg);
}


/* Accent stat */

.home-stat--accent .home-stat__icon {
    color: var(--color-action-accent);

    background-color:
            color-mix(
                    in srgb,
                    var(--color-action-accent) 12%,
                    var(--color-surface)
            );
}


/* Success stat */

.home-stat--success .home-stat__icon {
    color: var(--color-success-text);

    background-color: var(--color-success-bg);
}


/* --------------------------------------------------------------------------
   Stat typography
   -------------------------------------------------------------------------- */

.home-stat__body {
    min-width: 0;
}

.home-stat__value {
    margin: 0;

    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);

    color: var(--color-text-primary);
}

.home-stat__label {
    margin-top: var(--space-1);

    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);

    color: var(--color-text-secondary);
}


/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (min-width: 768px) {

    .home-hero__grid {
        padding-block: var(--space-16);
    }

    .home-hero__stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .home-stat {
        flex-direction: column;
        align-items: flex-start;
    }
}


@media (min-width: 1024px) {

    .home-hero__grid {
        grid-template-columns:
            minmax(0, 1.25fr)
            minmax(320px, 0.75fr);

        gap: var(--space-16);

        padding-block: var(--space-20);
    }

    .home-hero__stats {
        grid-template-columns: 1fr;
    }

    .home-stat {
        flex-direction: row;
        align-items: center;
        padding: var(--space-6);
    }
}
/* --------------------------------------------------------------------------
   2. Section heading — dùng chung layout cho các section bên dưới, giữ
   chiều rộng đọc vừa phải theo design_system.md.
   -------------------------------------------------------------------------- */
.section-heading {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 62ch;
    margin-bottom: var(--space-8);
}

.section-heading__eyebrow {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-action-primary);
}

.section-heading--center {
    max-width: 62ch;
    margin-inline: auto;
    text-align: center;
}

.section-heading__link {
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

/* --------------------------------------------------------------------------
   3. Services overview
   Dạng carousel: heading canh giữa, danh sách dịch vụ cuộn ngang bằng
   scroll-snap (không phụ thuộc JS để hoạt động), kèm nút điều hướng trái/
   phải theo bố cục tham khảo. Nút chỉ hỗ trợ thao tác (progressive
   enhancement) — nếu JS không chạy, người dùng vẫn cuộn ngang được bình
   thường bằng chuột/touch.
   -------------------------------------------------------------------------- */
.services__track-wrap {
    position: relative;
}

.services__track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(240px, 1fr);
    gap: var(--space-6);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--container-padding-inline);
    padding-block: var(--space-1) var(--space-2);
    scrollbar-width: none;
}

.services__track::-webkit-scrollbar {
    display: none;
}

.service-card {
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-6);
    background-color: var(--card-bg);
    border: var(--border-width-sm) solid var(--card-border);
    border-radius: var(--card-radius);
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.service-card:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

.service-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background-color: var(--color-surface-tinted);
    color: var(--color-action-primary);
    flex-shrink: 0;
}

.service-card__icon svg {
    width: 20px;
    height: 20px;
}

.service-card__title {
    font-size: var(--font-size-md);
    color: var(--color-text-primary);
}

.service-card__text {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    flex-grow: 1;
}

.service-card__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-action-primary);
}

.service-card__cta svg {
    width: 14px;
    height: 14px;
    transition: transform 0.15s ease;
}

.service-card:hover .service-card__cta svg {
    transform: translateX(2px);
}

/* Nút điều hướng carousel — ẩn trên mobile vì cuộn tay/touch đã đủ dùng,
   hiện từ tablet trở lên cạnh container để không đè lên nội dung card. */
.services__nav {
    display: none;
}

@media (min-width: 768px) {
    .services__nav {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 50%;
        translate: 0 -50%;
        width: 44px;
        height: 44px;
        border-radius: var(--radius-full);
        background-color: var(--color-surface);
        border: var(--border-width-sm) solid var(--color-border);
        box-shadow: var(--shadow-sm);
        color: var(--color-text-primary);
        z-index: 1;
    }

    .services__nav:hover {
        background-color: var(--color-surface-alt);
    }

    .services__nav--prev {
        left: calc(-1 * var(--space-6));
    }

    .services__nav--next {
        right: calc(-1 * var(--space-6));
    }

    .services__nav svg {
        width: 18px;
        height: 18px;
    }
}

@media (min-width: 1024px) {
    .services__track {
        grid-auto-columns: minmax(0, 1fr);
        grid-auto-flow: row;
        grid-template-columns: repeat(4, 1fr);
        overflow-x: visible;
    }
}

/* --------------------------------------------------------------------------
   4. Why DTL — value props, không phải sequence nên không dùng numbered
   marker (frontend-design guidance: numbered markers chỉ dùng khi nội
   dung thật sự có thứ tự).
   -------------------------------------------------------------------------- */
.why__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

.why-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.why-item__icon {
    width: 28px;
    height: 28px;
    color: var(--color-action-accent);
}

.why-item__title {
    font-size: var(--font-size-md);
}

.why-item__text {
    color: var(--color-text-secondary);
    max-width: 44ch;
}

@media (min-width: 768px) {
    .why__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

/* --------------------------------------------------------------------------
   5. How we work — real sequence, numbered markers carry meaning here
   (same pattern rationale as about.css §8).
   Layout: canh giữa, marker dạng vòng tròn nối bằng đường kẻ ngang liên tục
   (tham khảo bố cục "01–02–03–04" một hàng), thay vì timeline dọc/gãy khúc
   như bản trước — giữ đúng token màu (navy/gold), không đổi sang palette
   kem/terracotta.
   -------------------------------------------------------------------------- */
.process__list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6) var(--space-4);
    position: relative;
    counter-reset: none;
}

/* Đường nối ngang chạy qua tâm các marker, chỉ hiển thị từ tablet trở lên
   khi 4 bước thật sự nằm trên một hàng. */
.process__list::before {
    content: "";
    position: absolute;
    left: calc(12.5% + 0px);
    right: calc(12.5% + 0px);
    top: 20px;
    height: var(--border-width-sm);
    background-color: var(--color-border);
    z-index: 0;
}

.process__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    text-align: center;
    position: relative;
    z-index: 1;
}

.process__marker {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-surface);
    border: var(--border-width-md) solid var(--color-action-primary);
    color: var(--color-action-primary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

.process__body {
    max-width: 22ch;
}

.process__title {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-2);
}

.process__text {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

@media (max-width: 767.98px) {
    .process__list {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .process__list::before {
        display: none;
    }

    .process__body {
        max-width: 42ch;
    }
}

/* --------------------------------------------------------------------------
   6. Trust / Assurance — cùng nội dung/pattern với about.html §9 và
   contact_page.md §10, dùng chung message tránh trùng lặp claim.
   -------------------------------------------------------------------------- */
.trust__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

.trust__item {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.trust__icon {
    width: 28px;
    height: 28px;
    color: var(--color-action-accent);
}

.trust__item-title {
    font-size: var(--font-size-md);
}

.trust__item-text {
    color: var(--color-text-secondary);
}

@media (min-width: 768px) {
    .trust__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

/* --------------------------------------------------------------------------
   7. FAQ teaser
   -------------------------------------------------------------------------- */
.faq-teaser__list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: var(--border-width-sm) solid var(--color-border);
}

.faq-teaser__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-block: var(--space-4);
    border-bottom: var(--border-width-sm) solid var(--color-border);
    text-decoration: none;
    color: var(--color-text-primary);
}

.faq-teaser__item:hover .faq-teaser__question,
.faq-teaser__item:focus-visible .faq-teaser__question {
    color: var(--color-text-link-hover);
}

.faq-teaser__question {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    transition: color 0.15s ease;
}

.faq-teaser__arrow {
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   8. CTA band — một CTA duy nhất, không cạnh tranh (design_system.md §7).
   -------------------------------------------------------------------------- */
.cta-band {
    background-color: var(--color-surface-tinted);
    text-align: center;
}

.cta-band__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    max-width: 60ch;
    margin-inline: auto;
}

.cta-band__text {
    color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   Testimonials — Embla Carousel.
   Cấu trúc: track (viewport, overflow hidden) > container (flex, Embla
   dịch chuyển bằng transform) > slide (mỗi .testimonial-card).
   KHÔNG dùng scroll-snap/overflow-x nữa — Embla tự quản lý việc trượt.
   -------------------------------------------------------------------------- */
.testimonials__track-wrap {
    position: relative;
}

.testimonials__track {
    overflow: hidden;
    padding-block: var(--space-1) var(--space-2);
}

.testimonials__container {
    display: flex;
    gap: var(--space-6);
}

.testimonial-card {
    flex: 0 0 100%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-6);
    background-color: var(--card-bg);
    border: var(--border-width-sm) solid var(--card-border);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
}

.testimonial-card__quote-icon {
    width: 28px;
    height: 28px;
    color: var(--color-action-accent);
    flex-shrink: 0;
}

.testimonial-card__quote {
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    flex: 1;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding-top: var(--space-4);
    border-top: var(--border-width-sm) solid var(--color-border);
}

.testimonial-card__avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: var(--radius-full);
    background-color: var(--color-surface-tinted);
    color: var(--color-action-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

.testimonial-card__author-info {
    min-width: 0;
}

.testimonial-card__name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.testimonial-card__role {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Nút điều hướng — giữ nguyên vị trí/kích thước như bản trước */
.testimonials__nav {
    display: none;
}

@media (min-width: 768px) {
    .testimonial-card {
        flex: 0 0 calc(50% - var(--space-3));
    }

    .testimonials__nav {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 50%;
        translate: 0 -50%;
        width: 44px;
        height: 44px;
        border-radius: var(--radius-full);
        background-color: var(--color-surface);
        border: var(--border-width-sm) solid var(--color-border);
        box-shadow: var(--shadow-sm);
        color: var(--color-text-primary);
        z-index: 1;
    }

    .testimonials__nav:hover {
        background-color: var(--color-surface-alt);
    }

    .testimonials__nav:disabled {
        opacity: 0.4;
        cursor: not-allowed;
    }

    .testimonials__nav--prev {
        left: calc(-1 * var(--space-6));
    }

    .testimonials__nav--next {
        right: calc(-1 * var(--space-6));
    }

    .testimonials__nav svg {
        width: 18px;
        height: 18px;
    }
}

@media (min-width: 1024px) {
    .testimonial-card {
        flex: 0 0 calc(33.333% - (var(--space-6) * 2 / 3));
    }
}

.testimonials__dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-6);
}

.testimonials__dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border-radius: var(--radius-full);
    background-color: var(--color-border-strong);
    transition: background-color 0.15s ease, width 0.15s ease;
}

.testimonials__dot[aria-current="true"] {
    width: 20px;
    background-color: var(--color-action-primary);
}

@media (prefers-reduced-motion: reduce) {
    .testimonials__dot {
        transition: none;
    }
}