/* ==========================================================================
   ABOUT PAGE — Giới Thiệu  |  v4.0  |  2026-03-05
   Clean rewrite — uses CSS variables from core.css
   No !important — loaded last via dependency on ath-unified-layout
   ========================================================================== */

/* ---------- Page Container ---------- */
.about-page {
    --_gold: var(--ath-gold, #b99d63);
    --_gold-dark: var(--ath-gold-dark, #a08850);
    --_dark: var(--ath-dark, #1a1a1a);
    --_dark-2: var(--ath-dark-secondary, #2d2d2d);
    --_text: var(--ath-text, #333);
    --_text-2: var(--ath-text-secondary, #555);
    --_text-muted: var(--ath-text-muted, #666);
    --_bg: var(--ath-bg, #fff);
    --_bg-light: var(--ath-bg-light, #f8f9fa);
    --_border: var(--ath-border, #e9ecef);
    --_radius: 16px;
    --_radius-lg: 20px;

    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--_dark);
    background: var(--_bg);
}

.about-page h1,
.about-page h2,
.about-page h3,
.about-page h4,
.about-page h5,
.about-page h6 {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif !important;
    font-style: normal;
    font-synthesis: none !important;
}

.about-page .text-gold { color: var(--_gold); }

/* ---------- Shared Section Utilities ---------- */
.about-page .section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(185, 157, 99, .12);
    border: 1px solid rgba(185, 157, 99, .25);
    border-radius: 30px;
    font-size: 13px;
    font-family: 'Montserrat', sans-serif;
    color: var(--_gold);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 16px;
}

.about-page .section-badge .badge-dot {
    width: 7px;
    height: 7px;
    background: var(--_gold);
    border-radius: 50%;
    animation: ath-about-pulse 2s ease-in-out infinite;
}

.about-page .section-title {
    font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
    font-weight: 700;
    color: var(--_dark) !important;
    -webkit-text-fill-color: var(--_dark) !important;
    line-height: 1.25;
    margin-bottom: 16px;
    font-family: 'Montserrat', -apple-system, sans-serif !important;
    font-synthesis: none;
}

.about-page .section-title .text-gold,
.about-page .section-title span {
    color: var(--_gold) !important;
    -webkit-text-fill-color: var(--_gold) !important;
    background: none !important;
    -webkit-background-clip: unset !important;
    background-clip: unset !important;
}

.about-page .section-header--center {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}

.about-page .section-desc {
    font-size: 1rem;
    color: var(--_text-muted);
    line-height: 1.7;
    margin-top: 8px;
}

/* ---------- Buttons ---------- */
.about-page .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    font-family: 'Montserrat', sans-serif;
    text-decoration: none;
    transition: all .25s ease;
    cursor: pointer;
    border: 2px solid transparent;
    line-height: 1.4;
}

.about-page .btn--primary {
    background: var(--_gold);
    color: #fff;
    border-color: var(--_gold);
}
.about-page .btn--primary:hover {
    background: var(--_gold-dark);
    border-color: var(--_gold-dark);
}

.about-page .btn--outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, .35);
}
.about-page .btn--outline:hover {
    background: rgba(255, 255, 255, .1);
    border-color: #fff;
}

.about-page .btn--lg {
    padding: 16px 32px;
    font-size: 16px;
}

/* ---------- Hero ---------- */
.about-hero {
    position: relative;
    padding: 150px 0 110px;
    background: linear-gradient(135deg, var(--_dark) 0%, var(--_dark-2) 50%, var(--_dark) 100%);
    color: #fff;
    overflow: hidden;
}

.about-hero__bg {
    position: absolute;
    inset: 0;
    opacity: .08;
    pointer-events: none;
}

.about-hero__pattern {
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 80%, var(--_gold) 1px, transparent 1px),
        radial-gradient(circle at 80% 20%, var(--_gold) 1px, transparent 1px),
        radial-gradient(circle at 50% 50%, var(--_gold) .5px, transparent .5px);
    background-size: 60px 60px, 60px 60px, 30px 30px;
}

.about-hero__content {
    max-width: 780px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.about-hero__title {
    font-size: clamp(2.5rem, 2rem + 4vw, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 16px;
    color: #fff;
    letter-spacing: -0.02em;
}

.about-hero__tagline {
    font-size: clamp(1.1rem, 1rem + .5vw, 1.5rem);
    color: rgba(255, 255, 255, .9);
    margin-bottom: 20px;
    font-style: italic;
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    font-synthesis: none;
}

.about-hero__desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, .65);
    max-width: 580px;
    margin: 0 auto 32px;
    line-height: 1.75;
}

.about-hero__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ---------- Breadcrumb ---------- */
.about-breadcrumb {
    display: none;
}

/* ---------- Stats ---------- */
.about-stats {
    padding: 0;
    position: relative;
    z-index: 10;
    margin-top: -52px;
}

.about-stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    max-width: 980px;
    margin: 0 auto;
    background: var(--_bg);
    border-radius: var(--_radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, .08);
    overflow: hidden;
}

.about-stats__item {
    text-align: center;
    padding: 36px 16px;
    position: relative;
}

.about-stats__item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 20%;
    height: 60%;
    width: 1px;
    background: var(--_border);
}

.about-stats__icon {
    display: flex;
    justify-content: center;
    margin-bottom: 14px;
}
.about-stats__icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--_gold);
    fill: none;
}

.about-stats__number {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 1.5rem + 1.5vw, 2.75rem);
    font-weight: 700;
    color: var(--_gold);
    line-height: 1;
    margin-bottom: 6px;
}

.about-stats__label {
    font-size: 12px;
    color: var(--_text-muted);
    text-transform: uppercase;
    letter-spacing: .6px;
    font-weight: 500;
}

/* ---------- Story ---------- */
.about-story {
    padding: 100px 0;
    background: var(--_bg);
}

.about-story__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}

.about-story__images {
    position: relative;
}

.about-story__img-main {
    border-radius: var(--_radius-lg);
    overflow: hidden;
    box-shadow: 0 24px 48px rgba(0, 0, 0, .12);
}
.about-story__img-main img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.about-story__img-float {
    position: absolute;
    bottom: -32px;
    right: -32px;
    width: 200px;
    border-radius: var(--_radius);
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(0, 0, 0, .18);
    border: 4px solid var(--_bg);
}
.about-story__img-float img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.about-story__exp-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--_gold);
    color: #fff;
    padding: 16px 22px;
    border-radius: 12px;
    text-align: center;
    white-space: nowrap;
    box-shadow: 0 8px 24px rgba(185, 157, 99, .4);
}

.about-story__exp-number {
    display: block;
    font-family: 'Playfair Display', serif;
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.1;
    color: #fff;
}

.about-story__exp-text {
    font-size: 10px;
    line-height: 1.4;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: rgba(255, 255, 255, .9);
}

.about-story__text p {
    color: var(--_text-2);
    line-height: 1.8;
    margin-bottom: 14px;
    font-size: .95rem;
}

.about-story__highlights {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.about-story__highlight {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: .9rem;
    color: var(--_text);
    line-height: 1.5;
}

.about-story__highlight-icon {
    width: 24px;
    height: 24px;
    min-width: 24px;
    background: var(--_gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.about-story__highlight-icon svg {
    width: 14px;
    height: 14px;
    stroke: #fff;
    fill: none;
}

/* ---------- Mission & Vision ---------- */
.about-mission {
    padding: 100px 0;
    background: var(--_dark);
}

.about-mission .section-title {
    color: #fff !important;
    -webkit-text-fill-color: #fff !important;
}

.about-mission .section-title .text-gold,
.about-mission .section-title span {
    color: var(--_gold) !important;
    -webkit-text-fill-color: var(--_gold) !important;
}

.about-mission .section-badge {
    background: rgba(185, 157, 99, .15);
    border-color: rgba(185, 157, 99, .3);
}

.about-mission__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.about-mission__card {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: var(--_radius-lg);
    padding: 40px 28px;
    text-align: center;
    transition: background .3s, transform .3s;
}

.about-mission__card:hover {
    background: rgba(255, 255, 255, .08);
    transform: translateY(-4px);
}

.about-mission__icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}
.about-mission__icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--_gold);
    fill: none;
}

.about-mission__card h3 {
    color: var(--_gold) !important;
    font-size: 1.25rem;
    margin-bottom: 14px;
    font-weight: 600;
    font-family: 'Montserrat', -apple-system, sans-serif !important;
    font-synthesis: none !important;
    -webkit-text-fill-color: var(--_gold) !important;
}

.about-mission__card p {
    color: rgba(255, 255, 255, .65);
    line-height: 1.75;
    font-size: .9rem;
}

/* ---------- Services ---------- */
.about-services {
    padding: 100px 0;
    background: var(--_bg);
}

.about-services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.about-services__card {
    background: var(--_bg);
    border: 1px solid var(--_border);
    border-radius: var(--_radius);
    padding: 32px 28px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    transition: border-color .25s, box-shadow .25s, transform .25s;
}

.about-services__card:hover {
    border-color: var(--_gold);
    box-shadow: 0 16px 48px rgba(185, 157, 99, .12);
    transform: translateY(-4px);
}

.about-services__card-icon {
    margin-bottom: 20px;
}
.about-services__card-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--_gold);
    fill: none;
}

.about-services__card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--_dark);
    margin-bottom: 10px;
    font-family: 'Montserrat', sans-serif;
}

.about-services__card-desc {
    font-size: .875rem;
    color: var(--_text-muted);
    line-height: 1.65;
    margin-bottom: auto;
    padding-bottom: 16px;
}

.about-services__card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--_border);
}

.about-services__card-count {
    font-size: 13px;
    color: var(--_gold);
    font-weight: 600;
}

.about-services__card-arrow {
    color: var(--_gold);
    font-size: 18px;
    transition: transform .25s;
}

.about-services__card:hover .about-services__card-arrow {
    transform: translateX(5px);
}

/* ---------- Why Choose Us ---------- */
.about-why {
    padding: 100px 0;
    background: var(--_bg-light);
}

.about-why__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}

.about-why__desc {
    color: var(--_text-2);
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: 32px;
}

.about-why__list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-why__item {
    display: flex;
    gap: 18px;
}

.about-why__item-icon {
    width: 48px;
    height: 48px;
    background: rgba(185, 157, 99, .1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.about-why__item-icon svg {
    width: 22px;
    height: 22px;
    stroke: #b99d63 !important;
    fill: none !important;
    display: block;
}

.about-services__card-icon svg {
    width: 32px;
    height: 32px;
    stroke: #b99d63 !important;
    fill: none !important;
    display: block;
}

.about-why__item h4 {
    font-size: .95rem;
    color: var(--_dark);
    margin-bottom: 4px;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
}

.about-why__item p {
    font-size: .85rem;
    color: var(--_text-muted);
    line-height: 1.55;
}

.about-why__image {
    position: relative;
}

.about-why__image img {
    width: 100%;
    border-radius: var(--_radius-lg);
    box-shadow: 0 24px 48px rgba(0, 0, 0, .08);
    display: block;
}

.about-why__badge {
    position: absolute;
    bottom: 28px;
    left: -24px;
    background: var(--_gold);
    color: #fff;
    padding: 18px 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 12px 32px rgba(185, 157, 99, .4);
}

.about-why__badge-icon {
    display: block;
    margin-bottom: 6px;
}
.about-why__badge-icon svg {
    width: 22px;
    height: 22px;
    stroke: #fff;
    fill: none;
}

.about-why__badge-text {
    font-size: 11px;
    line-height: 1.4;
    color: #fff;
    font-weight: 500;
}

/* ---------- Contact CTA ---------- */
.about-contact {
    padding: 100px 0;
    background: var(--_dark);
    color: #fff;
}

.about-contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}

.about-contact__title {
    font-size: clamp(1.75rem, 1.4rem + 1vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 28px;
    color: #fff;
}

.about-contact__list {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.about-contact__item {
    display: flex;
    gap: 14px;
}

.about-contact__item-icon {
    width: 48px;
    height: 48px;
    background: rgba(185, 157, 99, .15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.about-contact__item-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--_gold);
    fill: none;
}

.about-contact__item strong {
    display: block;
    font-size: 13px;
    color: var(--_gold);
    margin-bottom: 4px;
}

.about-contact__item p,
.about-contact__item a {
    color: rgba(255, 255, 255, .75);
    font-size: .9rem;
    line-height: 1.55;
    text-decoration: none;
}

.about-contact__item a:hover {
    color: var(--_gold);
}

.about-contact__cta-card {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: var(--_radius-lg);
    padding: 40px 36px;
    text-align: center;
}

.about-contact__cta-card h3 {
    font-size: 1.35rem;
    margin-bottom: 14px;
    color: #fff;
    font-weight: 700;
}

.about-contact__cta-card p {
    color: rgba(255, 255, 255, .65);
    margin-bottom: 28px;
    line-height: 1.7;
    font-size: .9rem;
}

.about-contact__cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.about-contact__cta-buttons .btn {
    width: 100%;
}

/* ---------- Animations ---------- */
@keyframes ath-about-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .4; }
}

.ath-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .7s cubic-bezier(.23, 1, .32, 1),
                transform .7s cubic-bezier(.23, 1, .32, 1);
}

.ath-reveal--left {
    opacity: 0;
    transform: translateX(-28px);
    transition: opacity .7s cubic-bezier(.23, 1, .32, 1),
                transform .7s cubic-bezier(.23, 1, .32, 1);
}

.ath-reveal--right {
    opacity: 0;
    transform: translateX(28px);
    transition: opacity .7s cubic-bezier(.23, 1, .32, 1),
                transform .7s cubic-bezier(.23, 1, .32, 1);
}

.ath-reveal.is-visible,
.ath-reveal--left.is-visible,
.ath-reveal--right.is-visible {
    opacity: 1;
    transform: translate(0);
}

/* Stagger children */
.ath-reveal-stagger > .ath-reveal:nth-child(1) { transition-delay: 0s; }
.ath-reveal-stagger > .ath-reveal:nth-child(2) { transition-delay: .1s; }
.ath-reveal-stagger > .ath-reveal:nth-child(3) { transition-delay: .15s; }
.ath-reveal-stagger > .ath-reveal:nth-child(4) { transition-delay: .2s; }

/* ---------- Responsive: Tablet ---------- */
@media (max-width: 1024px) {
    .about-story__grid,
    .about-why__grid,
    .about-contact__grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-story__images {
        order: -1;
    }

    .about-mission__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .about-services__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .about-stats__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-stats__item:not(:last-child)::after {
        display: none;
    }

    .about-stats__item {
        border-bottom: 1px solid var(--_border);
    }

    .about-stats__item:nth-last-child(-n+2) {
        border-bottom: none;
    }
}

/* ---------- Responsive: Mobile ---------- */
@media (max-width: 768px) {
    .about-hero {
        padding: 120px 0 80px;
    }

    .about-stats {
        margin-top: -40px;
    }

    .about-stats__grid {
        border-radius: var(--_radius);
    }

    .about-stats__number {
        font-size: 2rem;
    }

    .about-stats__item {
        padding: 24px 12px;
    }

    .about-mission__grid,
    .about-services__grid {
        grid-template-columns: 1fr;
    }

    .about-story__img-float {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: 16px;
        width: 100%;
        border: none;
    }

    .about-story__img-main img {
        height: 280px;
    }

    .about-hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .about-hero__actions .btn {
        width: 100%;
        justify-content: center;
    }

    .about-why__badge {
        left: auto;
        right: 16px;
        bottom: 16px;
    }

    .about-story__exp-badge {
        padding: 12px 16px;
    }

    .about-story__exp-number {
        font-size: 1.4rem;
    }

    .about-contact__cta-card {
        padding: 28px 20px;
    }

    .about-page .section-title {
        font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
    }
}

@media (max-width: 480px) {
    .about-stats__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-hero__title {
        font-size: clamp(2rem, 1.5rem + 2vw, 2.5rem);
    }

    .about-hero__tagline {
        font-size: 1rem;
    }
}