/**
 * About Page Specific Styling for Leodigi Warantec Theme
 */

/* ==========================================
   ABOUT HERO SECTION
   ========================================== */
.about-hero-section {
    position: relative;
    background-image: linear-gradient(to right, var(--color-brand-dark), var(--color-slate-900), var(--color-brand-blue));
    color: var(--color-white);
    overflow: hidden;
    padding: 3rem 0;
}

@media (min-width: 768px) {
    .about-hero-section { padding: 5rem 0; }
}

.about-hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.15;
    background-image: radial-gradient(var(--color-brand-cyan) 1px, transparent 1px);
    background-size: 16px 16px;
    pointer-events: none;
}

.breadcrumb-nav {
    font-size: 0.75rem;
    color: var(--color-slate-400);
    margin-bottom: 1rem;
}
@media (min-width: 640px) {
    .breadcrumb-nav { font-size: 0.875rem; margin-bottom: 1.5rem; }
}

.breadcrumb-nav .separator {
    margin: 0 0.5rem;
}

.breadcrumb-nav .current {
    color: var(--color-white);
    font-weight: 500;
}

.about-hero-wrap {
    max-width: 48rem;
}

.about-hero-wrap h1 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.875rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}
@media (min-width: 640px) {
    .about-hero-wrap h1 { font-size: 2.5rem; }
}
@media (min-width: 1024px) {
    .about-hero-wrap h1 { font-size: 3rem; }
}

.about-hero-wrap p {
    font-size: 1rem;
    color: var(--color-slate-300);
    line-height: 1.625;
}


/* ==========================================
   STICKY TAB NAVIGATION
   ========================================== */
.about-sticky-tabs {
    position: sticky;
    top: 5rem; /* Matches main header height */
    z-index: 40;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-slate-100);
    box-shadow: var(--shadow-sm);
}

.about-tabs-wrap {
    display: flex;
    gap: 0.25rem;
    overflow-x: auto;
    padding: 0.75rem 0;
    scrollbar-width: none; /* Hide standard Firefox scrollbar */
}
.about-tabs-wrap::-webkit-scrollbar {
    display: none; /* Hide Chrome scrollbar */
}

@media (min-width: 640px) {
    .about-tabs-wrap { gap: 1rem; }
}

.about-tab-link {
    flex-shrink: 0;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-slate-600);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-all-300);
}

@media (min-width: 640px) {
    .about-tab-link { font-size: 0.875rem; }
}

.about-tab-link:hover {
    color: var(--color-brand-dark);
    background-color: var(--color-slate-50);
}

.about-tab-link.active {
    background-color: var(--color-brand-dark);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}


/* ==========================================
   ABOUT CONTENT SECTIONS UTILS
   ========================================== */
.scroll-mt-36 {
    scroll-margin-top: 9rem; /* Offset for header + sticky tabs */
}

.about-content-container {
    max-width: 80rem;
    margin: 0 auto;
    padding: 3rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 4rem;
}
@media (min-width: 640px) { .about-content-container { padding: 4rem 1.5rem; gap: 6rem; } }
@media (min-width: 1024px) { .about-content-container { padding: 5rem 2rem; gap: 7rem; } }

.about-card-section {
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
    border: 1px solid var(--color-slate-100);
    box-shadow: var(--shadow-sm);
}
@media (min-width: 640px) {
    .about-card-section { padding: 2.5rem; }
}

.about-split-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
}
@media (min-width: 1024px) {
    .about-split-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 4rem;
    }
}

.about-intro-text-col {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-intro-text-col .tag {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-brand-cyan);
    letter-spacing: 0.1em;
}

.about-intro-text-col h2 {
    font-size: 1.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-brand-dark);
}
@media (min-width: 640px) {
    .about-intro-text-col h2 { font-size: 1.875rem; }
}

.about-intro-text-col p {
    color: var(--color-slate-600);
    font-size: 0.875rem;
    line-height: 1.625;
}
@media (min-width: 640px) {
    .about-intro-text-col p { font-size: 1rem; }
}

.intro-highlights-check {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.intro-highlights-check li {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--color-slate-700);
}
@media (min-width: 640px) {
    .intro-highlights-check li { font-size: 1rem; }
}

.check-icon-about {
    width: 1.25rem;
    height: 1.25rem;
    border-radius: var(--radius-full);
    background-color: rgba(6, 182, 212, 0.1);
    color: var(--color-brand-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    flex-shrink: 0;
    margin-top: 2px;
}

.btn-about-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-brand-dark);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    transition: var(--transition-all-300);
    align-self: start;
}

.btn-about-cta:hover {
    background-color: var(--color-brand-blue);
    transform: translateX(2px);
}

.about-image-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-slate-100);
}

@media (min-width: 1024px) {
    .about-image-card {
        aspect-ratio: 1 / 1;
    }
}

.about-image-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-img-overlay {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(to top, rgba(0,0,0,0.5), transparent, transparent);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    color: var(--color-white);
}

.overlay-details h4 {
    font-size: 1rem;
    font-weight: 700;
}
@media (min-width: 640px) {
    .overlay-details h4 { font-size: 1.125rem; }
}

.overlay-details p {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
}


/* ==========================================
   DEVELOPMENT TIMELINE SECTION
   ========================================== */
.timeline-centered-wrap {
    max-width: 56rem;
    margin: 0 auto;
    position: relative;
    padding-left: 0.5rem;
}
@media (min-width: 640px) {
    .timeline-centered-wrap { padding-left: 0; }
}

.timeline-track-line {
    position: absolute;
    left: 4.5rem;
    top: 1rem;
    bottom: 1rem;
    width: 2px;
    background-color: #cffafe;
}

@media (min-width: 640px) {
    .timeline-track-line { left: 7rem; }
}

.timeline-event-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.timeline-node-item {
    display: flex;
    align-items: start;
    position: relative;
}

.timeline-event-year {
    width: 3.75rem;
    text-align: right;
    font-weight: 600;
    color: var(--color-slate-800);
    font-size: 0.875rem;
    padding-top: 1rem;
    flex-shrink: 0;
    line-height: 1.2;
}

@media (min-width: 640px) {
    .timeline-event-year { width: 6.25rem; font-size: 1rem; }
}

.timeline-dot-container {
    width: 1.5rem;
    display: flex;
    justify-content: center;
    padding-top: 1.125rem;
    flex-shrink: 0;
    z-index: 10;
    margin: 0 0.25rem;
}

@media (min-width: 640px) {
    .timeline-dot-container { width: 2.5rem; margin: 0 0.5rem; }
}

.timeline-dot-outer {
    width: 1rem;
    height: 1rem;
    border-radius: var(--radius-full);
    background-color: var(--color-white);
    border: 2px solid var(--color-brand-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.timeline-dot-inner {
    width: 0.375rem;
    height: 0.375rem;
    border-radius: var(--radius-full);
    background-color: var(--color-brand-cyan);
}

.timeline-card-content {
    flex-grow: 1;
    position: relative;
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 1.25rem;
    border: 1px solid var(--color-slate-100);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-fast);
}

@media (min-width: 640px) {
    .timeline-card-content { padding: 1.5rem; }
}

.timeline-card-content:hover {
    box-shadow: var(--shadow-md);
}

.timeline-card-arrow {
    display: none;
}

@media (min-width: 640px) {
    .timeline-card-arrow {
        display: block;
        position: absolute;
        left: -6px;
        top: 1.25rem;
        width: 12px;
        height: 12px;
        background-color: var(--color-white);
        border-left: 1px solid var(--color-slate-100);
        border-bottom: 1px solid var(--color-slate-100);
        transform: rotate(45deg);
    }
}

.timeline-card-content h4 {
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--color-slate-900);
    line-height: 1.4;
}

@media (min-width: 640px) {
    .timeline-card-content h4 { font-size: 1rem; }
}

.timeline-bullets-list {
    margin-top: 0.875rem;
    border-top: 1px solid var(--color-slate-50);
    padding-top: 0.75rem;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-bullets-list li {
    display: flex;
    align-items: start;
    gap: 0.625rem;
    font-size: 0.75rem;
    color: var(--color-slate-600);
}

@media (min-width: 640px) {
    .timeline-bullets-list li { font-size: 0.875rem; }
}

.timeline-bullets-list li .bullet-dot-about {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background-color: var(--color-brand-cyan);
    margin-top: 6px;
    flex-shrink: 0;
}


/* ==========================================
   ABOUT CERTIFICATIONS GRID
   ========================================== */
.about-certs-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

@media (min-width: 1024px) {
    .about-certs-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 1.5rem;
    }
}

.about-cert-box {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    border: 1px solid var(--color-slate-100);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--transition-all-300);
}

.about-cert-box:hover {
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: var(--shadow-md);
}

.about-cert-circle {
    width: 4rem;
    height: 4rem;
    border-radius: var(--radius-full);
    background-color: var(--color-slate-50);
    border: 1px solid var(--color-slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-brand-dark);
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.about-cert-box h3 {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-slate-900);
    margin-bottom: 4px;
}

.about-cert-box p {
    color: var(--color-slate-500);
    font-size: 0.75rem;
    line-height: 1.4;
}

@media (min-width: 640px) {
    .about-cert-box p { font-size: 0.875rem; }
}


/* ==========================================
   ABOUT VIETNAM OFFICE LOCATIONS
   ========================================== */
.vietnam-locations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .vietnam-locations-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.location-box-card {
    background-color: rgba(248, 250, 252, 0.6);
    padding: 1.25rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(241, 245, 249, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1.5rem;
}

.location-title-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 900;
    color: var(--color-brand-dark);
    text-transform: uppercase;
}

.location-title-wrap svg {
    width: 0.875rem;
    height: 0.875rem;
    color: var(--color-brand-cyan);
}

.location-address-txt {
    color: var(--color-slate-600);
    font-size: 0.75rem;
    line-height: 1.6;
    margin-top: 0.5rem;
}

@media (min-width: 640px) {
    .location-address-txt { font-size: 0.875rem; }
}

.location-meta-footer {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(226, 232, 240, 0.5);
}

.location-meta-footer a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--color-slate-500);
}

.location-meta-footer a:hover {
    color: var(--color-brand-dark);
}

.location-meta-footer svg {
    width: 0.75rem;
    height: 0.75rem;
    color: var(--color-slate-400);
}

/* Consultation box */
.consultation-cta-box-span-3 {
    grid-column: 1 / -1;
    background-image: linear-gradient(to bottom right, var(--color-brand-dark), var(--color-brand-blue));
    color: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .consultation-cta-box-span-3 {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.consultation-cta-box-span-3::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: radial-gradient(var(--color-brand-cyan) 1px, transparent 1px);
    background-size: 12px 12px;
}

.consultation-box-text {
    position: relative;
    z-index: 10;
    max-width: 32rem;
}

.consultation-box-text .badge {
    font-size: 10px;
    background-color: rgba(6, 182, 212, 0.25);
    color: var(--color-brand-cyan);
    font-weight: 700;
    padding: 0.125rem 0.625rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.consultation-box-text h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-top: 0.5rem;
}
@media (min-width: 640px) {
    .consultation-box-text h3 { font-size: 1.125rem; }
}

.consultation-box-text p {
    font-size: 0.75rem;
    color: var(--color-slate-300);
    margin-top: 4px;
    line-height: 1.4;
}

@media (min-width: 640px) {
    .consultation-box-text p { font-size: 0.875rem; }
}

.btn-consult-now-about {
    position: relative;
    z-index: 10;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: var(--color-brand-cyan);
    color: var(--color-brand-dark);
    font-weight: 900;
    font-size: 0.75rem;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-full);
    transition: var(--transition-all-300);
    white-space: nowrap;
    cursor: pointer;
    border: none;
}

@media (min-width: 640px) {
    .btn-consult-now-about { font-size: 0.875rem; padding: 0.875rem 1.5rem; }
}

.btn-consult-now-about:hover {
    background-color: var(--color-white);
    color: var(--color-brand-dark);
}