/* Reset và Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #000000;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.section-padding {
    padding: 80px 0;
}

.two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

/* Main Template Container */
.sanko-about-template {
    position: relative;
    min-height: 100vh;
    background-color: #000000;
    color: #ffffff!important;

    
    /* Mobile-specific variables */
    --mobile-bg-primary: #2a2a2e;
    --mobile-bg-secondary: #3a3a3e;
    --mobile-overlay-opacity: 0.2;
}
.sanko-about-template h1, h2, h3, h4, h5, h6 {
    color: #ffffff!important;
}

/* Fixed Background */
.fixed-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1556911220-bff31c812dba?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    opacity: 0.1;
    z-index: -1;
}


/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, #1f2937, #374151);
    color: #ffffff;
    border: 1px solid #ffffff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #374151, #4b5563);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #ffffff;
    border: 1px solid #ffffff;
}

.btn-outline:hover {
    background: linear-gradient(135deg, #374151, #4b5563);
    border-color: transparent;
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1600489000022-c2086d79f9d4?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s ease forwards;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #ffffff;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s ease 0.3s forwards;
}

.hero-cta {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s ease 0.5s forwards;
}

/* Section Backgrounds */
.section-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: 0;
}

.section-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1;
}

/* Vision & Mission Section */
.vision-mission-section {
    position: relative;
}

.vision-mission-section .section-background {
    background-image: url('https://images.unsplash.com/photo-1600585152220-90363fe7e115?ixlib=rb-1.2.1&auto=format&fit=crop&w=2850&q=80');
}

.vision-mission-section .container {
    position: relative;
    z-index: 2;
}

.section-title {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 24px;
    border-bottom: 2px solid #374151;
    padding-bottom: 16px;
}

.content-card {
    background: rgba(17, 24, 39, 0.5);
    backdrop-filter: blur(10px);
    padding: 32px;
    border-radius: 8px;
}

.card-icon {
    margin-bottom: 24px;
}

.card-icon i {
    font-size: 48px;
    color: #ffffff;
}

.card-text {
    font-size: 1.125rem;
    color: #ffffff;
    line-height: 1.8;
}

.mission-items {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mission-item {
    background: rgba(17, 24, 39, 0.5);
    backdrop-filter: blur(10px);
    padding: 24px;
    border-radius: 8px;
}

.mission-content {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.mission-icon i {
    font-size: 32px;
    color: #ffffff;
    margin-top: 4px;
}

.mission-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #ffffff;
}

.mission-description {
    color: #ffffff;
    line-height: 1.6;
}

/* Timeline Section */
.timeline-section {
    position: relative;
}

.timeline-section .section-background {
    background-image: url('https://images.unsplash.com/photo-1556911261-6bd341186b2f?ixlib=rb-1.2.1&auto=format&fit=crop&w=2850&q=80');
}

.timeline-section .container {
    position: relative;
    z-index: 2;
}

.timeline-desktop {
    position: relative;
    margin-top: 60px;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #374151;
    transform: translateX(-50%);
}

.timeline-items {
    position: relative;
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
}

.timeline-item.left {
    justify-content: flex-end;
}

.timeline-item.right {
    justify-content: flex-start;
}

.timeline-content {
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(10px);
    padding: 24px;
    border-radius: 8px;
    max-width: 400px;
    position: relative;
}

.timeline-item.left .timeline-content {
    text-align: right;
    margin-right: 60px;
}

.timeline-item.right .timeline-content {
    text-align: left;
    margin-left: 60px;
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 4px;
    color: #ffffff;
}

.timeline-year {
    color: #f59e0b;
    font-weight: 600;
    margin-bottom: 12px;
}

.timeline-description {
    color: #ffffff;
    line-height: 1.6;
}

.timeline-icon {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: #374151;
    border: 4px solid #000000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.timeline-icon i {
    font-size: 16px;
    color: #ffffff;
}

/* Mobile Timeline */
.timeline-mobile {
    display: none;
    margin-top: 40px;
}

.timeline-item-mobile {
    position: relative;
    padding-left: 60px;
    border-left: 2px solid #374151;
    margin-bottom: 40px;
}

.timeline-icon-mobile {
    position: absolute;
    left: -20px;
    top: 0;
    width: 32px;
    height: 32px;
    background: #374151;
    border: 2px solid #000000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-icon-mobile i {
    font-size: 14px;
    color: #ffffff;
}

/* Organization Chart Section */
.organization-section {
    position: relative;
}

.organization-section .section-background {
    background-image: url('https://images.unsplash.com/photo-1556909114-f6e7ad7d3136?ixlib=rb-1.2.1&auto=format&fit=crop&w=2850&q=80');
}

.organization-section .container {
    position: relative;
    z-index: 2;
}

.organization-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 60px;
}

.organization-cards {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.org-card {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(10px);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid #374151;
    transition: all 0.3s ease;
    position: relative;
}

.org-card:hover {
    border-color: #6b7280;
    transform: translateX(5px);
}

.card-number {
    font-size: 3rem;
    font-weight: 900;
    min-width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    color: #ffffff;
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    border: 3px solid #ffffff;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.org-card[data-number="01"] .card-number {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
}

.org-card[data-number="02"] .card-number {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
}

.org-card[data-number="03"] .card-number {
    background: linear-gradient(135deg, #10b981, #059669);
}

.org-card[data-number="04"] .card-number {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.card-content {
    flex: 1;
}

.card-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 8px;
    color: #ffffff;
}

.card-subtitle {
    font-size: 1rem;
    color: #f59e0b;
    margin-bottom: 16px;
    font-weight: 500;
}

.card-description {
    color: #d1d5db;
    line-height: 1.6;
    font-size: 0.95rem;
}

.organization-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.puzzle-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
}

.puzzle-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.8;
}

.puzzle-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.puzzle-pieces {
    position: relative;
    width: 200px;
    height: 200px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 8px;
    transform: rotate(-10deg);
}

.puzzle-piece {
    border-radius: 15px;
    position: relative;
    opacity: 0.9;
    transition: all 0.3s ease;
}

.puzzle-piece:hover {
    transform: scale(1.05);
    opacity: 1;
}

.piece-1 {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    animation: float 3s ease-in-out infinite;
}

.piece-2 {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
    animation: float 3s ease-in-out infinite 0.5s;
}

.piece-3 {
    background: linear-gradient(135deg, #10b981, #059669);
    animation: float 3s ease-in-out infinite 1s;
}

.piece-4 {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    animation: float 3s ease-in-out infinite 1.5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Map Section */
.map-section {
    position: relative;
}

.map-section .section-background {
    background-image: url('https://images.unsplash.com/photo-1600607687939-ce8a6c25118c?ixlib=rb-1.2.1&auto=format&fit=crop&w=2850&q=80');
}

.map-section .container {
    position: relative;
    z-index: 2;
}

.map-content {
    margin-bottom: 20px;
}

.section-text {
    font-size: 1.125rem;
    color: #ffffff;
    margin-bottom: 32px;
    line-height: 1.8;
}

.showroom-info {
    background: rgba(0, 0, 0, 0.5);
    padding: 24px;
    border-radius: 8px;
}

.showroom-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #ffffff;
}

.showroom-description {
    color: #ffffff;
    margin-bottom: 24px;
    line-height: 1.6;
}

.map-container {
    position: relative;
}

.vietnam-map {
    background: rgba(55, 65, 81, 0.5);
    backdrop-filter: blur(10px);
    padding: 16px;
    border-radius: 8px;
}

.map-svg {
    width: 100%;
    height: auto;
}

.location-marker {
    cursor: pointer;
}

.location-dot {
    transition: all 0.3s ease;
}

.location-marker:hover .location-dot {
    r: 8;
    fill: #f59e0b;
}

.location-label {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.location-marker:hover .location-label {
    opacity: 1;
}

.location-info {
    position: absolute;
    bottom: 16px;
    left: 16px;
    right: 16px;
    background: rgba(0, 0, 0, 0.8);
    padding: 16px;
    border-radius: 8px;
    font-size: 14px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.location-info.active {
    opacity: 1;
}

.location-name {
    font-weight: bold;
    margin-bottom: 4px;
    color: #ffffff;
}

.location-address {
    color: #ffffff;
}

/* Commitment Section */
.commitment-section {
    position: relative;
    overflow: hidden;
}

.commitment-section .section-background {
    background-image: url('https://images.unsplash.com/photo-1600566752355-35792bedcfea?ixlib=rb-1.2.1&auto=format&fit=crop&w=2850&q=80');
}

.commitment-section .container {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.commitment-content {
    padding: 0 20px;
}

.commitment-quote {
    font-size: 1.5rem;
    color: #d1d5db;
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.commitment-author {
    font-size: 1.125rem;
    color: #f59e0b;
    font-weight: 600;
}

/* Footer */
.footer {
    background-color: #000000;
    padding: 64px 0 32px;
    border-top: 1px solid #374151;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-title {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 24px;
    color: #ffffff;
}

.footer-description {
    color: #9ca3af;
    margin-bottom: 24px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-link {
    color: #9ca3af;
    font-size: 20px;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: #ffffff;
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.contact-item i {
    color: #9ca3af;
    font-size: 20px;
    margin-top: 2px;
}

.contact-label {
    color: #d1d5db;
    font-weight: 500;
}

.contact-value {
    color: #9ca3af;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 32px;
    text-align: center;
}

.copyright {
    color: #6b7280;
    font-size: 14px;
}

/* Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: all 0.7s ease;
}

.animate-on-scroll.animate-in {
    opacity: 1 !important;
    transform: translateY(0) scale(1) !important;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-nav.active {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .two-columns {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .timeline-desktop {
        display: none;
    }
    
    .timeline-mobile {
        display: block;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .section-padding {
        padding: 60px 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .commitment-quote {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-padding {
        padding: 40px 0;
    }
}

/* MOBILE OPTIMIZATIONS - About Page */
@media (max-width: 768px) {
    /* Typography - đồng bộ với home */
    .sanko-about-template .hero-title {
        font-size: 28px !important; /* Đồng bộ với home */
        line-height: 1.1;
        margin-bottom: 16px;
    }
    
    .sanko-about-template .hero-subtitle {
        font-size: 16px !important; /* Đồng bộ với home */
        margin-bottom: 24px;
    }
    
    .sanko-about-template .section-title {
        font-size: 24px !important; /* Đồng bộ với home */
        margin-bottom: 16px;
    }
    
    .sanko-about-template .section-text,
    .sanko-about-template .card-text {
        font-size: 14px !important; /* Đồng bộ với home */
        line-height: 1.5;
    }
    
    /* Spacing optimizations */
    .sanko-about-template .section-padding {
        padding: 40px 0; /* Đồng bộ với home */
    }
    
    .sanko-about-template .container {
        padding: 0 16px; /* Đồng bộ với home */
    }
    
    .sanko-about-template .two-columns {
        grid-template-columns: 1fr; /* Single column */
        gap: 20px; /* Đồng bộ với home */
    }
    
    /* Background optimizations */
    .sanko-about-template .fixed-background {
        opacity: 0.15; /* Tăng độ sáng cho mobile */
        background-attachment: scroll; /* Better performance */
    }
    
    .sanko-about-template .section-overlay {
        background: rgba(0, 0, 0, 0.3); /* Giảm độ tối */
    }
    
    .sanko-about-template .hero-overlay {
        background: rgba(0, 0, 0, 0.3); /* Sáng hơn */
    }
    
    /* Card optimizations */
    .sanko-about-template .content-card,
    .sanko-about-template .mission-item,
    .sanko-about-template .feature-card {
        padding: 20px; /* Giảm từ 24-32px */
        margin-bottom: 16px;
    }
    
    /* Hero content mobile */
    .sanko-about-template .hero {
        min-height: 70vh; /* Giảm từ 100vh */
    }
    
    .sanko-about-template .hero-content {
        height: 70vh;
        justify-content: flex-start;
        padding-top: 15vh;
    }
    
    /* Mission items mobile - 1 col trên, 2 col dưới */
    .sanko-about-template .mission-items {
        display: grid;
        grid-template-columns: 1fr; /* Base: single column */
        gap: 16px;
        grid-template-areas: 
            "mission1"
            "mission2"
            "mission3";
    }
    
    /* Mission item đầu tiên: full width */
    .sanko-about-template .mission-item:nth-child(1) {
        grid-area: mission1;
        grid-column: 1 / -1; /* Span full width */
    }
    
    /* Mission item 2 và 3: chia 2 cột */
    .sanko-about-template .mission-item:nth-child(2) {
        grid-area: mission2;
    }
    
    .sanko-about-template .mission-item:nth-child(3) {
        grid-area: mission3;
    }
    
    /* Tái cấu trúc grid cho 2 cột dưới */
    .sanko-about-template .mission-items {
        grid-template-columns: 1fr 1fr;
        grid-template-areas: 
            "mission1 mission1"
            "mission2 mission3";
        column-gap: 12px;
        row-gap: 16px;
    }
    
    .sanko-about-template .mission-content {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .sanko-about-template .mission-title {
        font-size: 16px; /* Smaller title */
        margin-bottom: 8px;
    }
    
    .sanko-about-template .mission-description {
        font-size: 14px; /* Smaller text */
        line-height: 1.4;
    }
    
    /* Timeline mobile optimization */
    .sanko-about-template .timeline-desktop {
        display: none;
    }
    
    .sanko-about-template .timeline-mobile {
        display: block;
        margin-top: 24px;
    }
    
    .sanko-about-template .timeline-item-mobile {
        padding-left: 40px; /* Reduce padding */
        margin-bottom: 24px; /* Tighter spacing */
    }
    
    .sanko-about-template .timeline-title {
        font-size: 16px; /* Smaller title */
        margin-bottom: 4px;
    }
    
    .sanko-about-template .timeline-year {
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    .sanko-about-template .timeline-description {
        font-size: 14px;
        line-height: 1.4;
    }
    
    /* Organization section mobile */
    .sanko-about-template .organization-content {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 40px;
    }
    
    .sanko-about-template .organization-cards {
        gap: 16px; /* Tighter gap */
    }
    
    .sanko-about-template .org-card {
        padding: 20px; /* Compact padding */
        gap: 16px;
    }
    
    .sanko-about-template .card-number {
        font-size: 2rem; /* Smaller number */
        min-width: 60px;
        height: 60px;
    }
    
    .sanko-about-template .card-title {
        font-size: 16px; /* Smaller title */
        margin-bottom: 6px;
    }
    
    .sanko-about-template .card-subtitle {
        font-size: 13px; /* Smaller subtitle */
        margin-bottom: 12px;
    }
    
    .sanko-about-template .card-description {
        font-size: 14px; /* Consistent with other mobile text */
        line-height: 1.5;
    }
    
    .sanko-about-template .puzzle-container {
        max-width: 300px;
        height: 300px;
    }
    
    .sanko-about-template .puzzle-pieces {
        width: 150px;
        height: 150px;
        gap: 6px;
    }
    
    /* Map section mobile */
    .sanko-about-template .map-section .two-columns {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .sanko-about-template .showroom-info {
        padding: 16px; /* Compact padding */
    }
    
    .sanko-about-template .showroom-title {
        font-size: 16px;
        margin-bottom: 12px;
    }
    
    .sanko-about-template .showroom-description {
        font-size: 14px;
        margin-bottom: 16px;
    }
    
    /* Vietnam map mobile */
    .sanko-about-template .vietnam-map {
        padding: 12px;
    }
    
    .sanko-about-template .location-info {
        font-size: 12px;
        padding: 12px;
    }
    
    /* Commitment section mobile */
    .sanko-about-template .commitment-quote {
        font-size: 18px; /* Giảm từ 1.5rem */
        margin-bottom: 16px;
        line-height: 1.5;
    }
    
    .sanko-about-template .commitment-author {
        font-size: 16px; /* Smaller author text */
    }
    
    /* Footer mobile optimizations */
    .sanko-about-template .footer {
        padding: 32px 0; /* Compact footer */
    }
    
    .sanko-about-template .footer-content {
        grid-template-columns: repeat(2, 1fr); /* 2 columns */
        gap: 20px;
        margin-bottom: 32px;
    }
    
    .sanko-about-template .footer-title {
        font-size: 16px; /* Smaller titles */
        margin-bottom: 12px;
    }
    
    .sanko-about-template .footer-description {
        font-size: 14px;
        margin-bottom: 16px;
    }
    
    .sanko-about-template .contact-list {
        gap: 12px; /* Tighter spacing */
    }
    
    .sanko-about-template .contact-item {
        gap: 8px;
    }
    
    .sanko-about-template .contact-item i {
        font-size: 16px; /* Smaller icons */
    }
    
    .sanko-about-template .contact-label,
    .sanko-about-template .contact-value {
        font-size: 13px; /* Smaller text */
    }
    
    .sanko-about-template .footer-links,
    .sanko-about-template .footer-link {
        font-size: 13px;
    }
    
    .sanko-about-template .social-links {
        gap: 12px;
        justify-content: center;
    }
    
    .sanko-about-template .social-link i {
        font-size: 18px;
    }
    
    /* Button optimizations */
    .sanko-about-template .btn {
        padding: 10px 20px; /* Compact buttons */
        font-size: 14px;
        min-height: 44px; /* Touch-friendly */
    }
    
    .sanko-about-template .hero-cta .btn {
        width: 100%; /* Full width hero button */
        justify-content: center;
    }
    
    /* Background sections mobile */
    .sanko-about-template .vision-mission-section .section-background,
    .sanko-about-template .timeline-section .section-background,
    .sanko-about-template .why-choose-section .section-background,
    .sanko-about-template .map-section .section-background,
    .sanko-about-template .commitment-section .section-background {
        background-attachment: scroll; /* Better mobile performance */
        opacity: 0.8; /* Brighter backgrounds */
    }
    
    /* Card icon mobile */
    .sanko-about-template .card-icon i {
        font-size: 32px; /* Smaller icons */
    }
    
    /* Mission icon mobile */
    .sanko-about-template .mission-icon i {
        font-size: 24px; /* Smaller mission icons */
    }
    
    /* Animation optimizations for mobile */
    .sanko-about-template .animate-on-scroll {
        animation: none; /* Disable complex animations */
        opacity: 1 !important;
        transform: none !important;
    }
    
    /* Touch-friendly elements */
    .sanko-about-template .location-marker,
    .sanko-about-template .btn,
    .sanko-about-template .social-link {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Optimize text for mobile reading */
    .sanko-about-template .section-text,
    .sanko-about-template .hero-subtitle,
    .sanko-about-template .card-text {
        text-align: left; /* Better mobile reading */
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    /* Mobile-specific utility classes */
    .sanko-about-template .mobile-hidden {
        display: none !important;
    }
    
    .sanko-about-template .mobile-visible {
        display: block !important;
    }
    
    .sanko-about-template .mobile-text-center {
        text-align: center !important;
    }
    
    .sanko-about-template .mobile-full-width {
        width: 100% !important;
    }
}

/* EXTRA SMALL SCREENS OPTIMIZATION */
@media (max-width: 480px) {
    .sanko-about-template .section-padding {
        padding: 32px 0; /* Even more compact */
    }
    
    .sanko-about-template .container {
        padding: 0 12px;
    }
    
    .sanko-about-template .hero-title {
        font-size: 24px !important;
    }
    
    .sanko-about-template .section-title {
        font-size: 20px !important;
    }
    
    .sanko-about-template .hero-content {
        padding-top: 10vh; /* Less top padding */
    }
    
    /* Footer single column on very small screens */
    .sanko-about-template .footer-content {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    /* Organization section extra small screens */
    .sanko-about-template .organization-content {
        gap: 30px;
    }
    
    .sanko-about-template .org-card {
        padding: 16px;
        gap: 12px;
    }
    
    .sanko-about-template .card-number {
        font-size: 1.5rem;
        min-width: 50px;
        height: 50px;
    }
    
    .sanko-about-template .card-title {
        font-size: 14px;
        margin-bottom: 4px;
    }
    
    .sanko-about-template .card-subtitle {
        font-size: 12px;
        margin-bottom: 10px;
    }
    
    .sanko-about-template .card-description {
        font-size: 13px;
    }
    
    .sanko-about-template .puzzle-container {
        max-width: 250px;
        height: 250px;
    }
    
    .sanko-about-template .puzzle-pieces {
        width: 120px;
        height: 120px;
        gap: 4px;
    }
    
    /* Card content more compact */
    .sanko-about-template .content-card,
    .sanko-about-template .mission-item {
        padding: 16px;
    }
    
    /* Commitment quote smaller */
    .sanko-about-template .commitment-quote {
        font-size: 16px;
        line-height: 1.4;
    }
}

/* MOBILE PERFORMANCE OPTIMIZATIONS */
@media (max-width: 768px) {
    /* Reduced motion for better performance */
    @media (prefers-reduced-motion: reduce) {
        .sanko-about-template * {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }
    
    /* Optimize images for mobile */
    .sanko-about-template img {
        max-width: 100%;
        height: auto;
        image-rendering: -webkit-optimize-contrast;
    }
    
    /* Better text rendering */
    .sanko-about-template {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    
    /* Optimize background images */
    .sanko-about-template .hero-background,
    .sanko-about-template .section-background {
        background-size: cover;
        background-position: center;
        will-change: auto; /* Remove will-change for better performance */
    }
    
    /* Mobile typography scale */
    .sanko-about-template h1 { font-size: 24px; }
    .sanko-about-template h2 { font-size: 20px; }
    .sanko-about-template h3 { font-size: 18px; }
    .sanko-about-template h4 { font-size: 16px; }
    .sanko-about-template h5 { font-size: 14px; }
    .sanko-about-template h6 { font-size: 12px; }
} 

/* Letter Section Styles */
.letter-section {
    position: relative;
}

.letter-section .section-background {
    background-image: url('https://images.unsplash.com/photo-1556911220-bff31c812dba?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    opacity: 0.1;
}

.letter-section .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.letter-content {
    background: rgba(17, 24, 39, 0.3);
    backdrop-filter: blur(10px);
    padding: 48px;
    border-radius: 12px;
    border: 1px solid #374151;
}

.letter-body {
    margin-top: 32px;
}

.letter-body .section-text {
    margin-bottom: 24px;
    text-indent: 24px;
    text-align: justify;
    line-height: 1.8;
}

.letter-body .section-text:first-child {
    text-indent: 0;
    font-weight: 600;
    color: #f59e0b;
    margin-bottom: 32px;
}

.letter-signature {
    margin-top: 40px;
    text-align: right;
}

.signature-text {
    font-style: italic;
    color: #f59e0b !important;
    margin-bottom: 0 !important;
    text-indent: 0 !important;
    text-align: right !important;
    line-height: 1.6;
}

.signature-text strong {
    color: #ffffff !important;
    font-weight: 600;
}

/* Mobile optimizations for Letter Section */
@media (max-width: 768px) {
    .sanko-about-template .letter-content {
        padding: 24px; /* Giảm padding cho mobile */
        margin: 0 16px; /* Thêm margin để không sát viền */
    }
    
    .sanko-about-template .letter-body {
        margin-top: 20px;
    }
    
    .sanko-about-template .letter-body .section-text {
        margin-bottom: 16px; /* Giảm margin bottom */
        text-indent: 16px; /* Giảm text indent */
        font-size: 14px !important; /* Đồng bộ với mobile font size */
        line-height: 1.6; /* Tối ưu line height cho mobile */
        text-align: left; /* Căn trái cho dễ đọc trên mobile */
    }
    
    .sanko-about-template .letter-body .section-text:first-child {
        font-size: 14px !important;
        margin-bottom: 20px;
        font-weight: 600;
    }
    
    .sanko-about-template .letter-signature {
        margin-top: 24px;
        text-align: center; /* Căn giữa signature trên mobile */
    }
    
    .sanko-about-template .signature-text {
        font-size: 14px !important;
        text-align: center !important;
        line-height: 1.5;
    }
}

@media (max-width: 480px) {
    .sanko-about-template .letter-content {
        padding: 20px;
        margin: 0 12px;
    }
    
    .sanko-about-template .letter-body .section-text {
        text-indent: 12px;
        margin-bottom: 14px;
    }
    
    .sanko-about-template .letter-signature {
        margin-top: 20px;
    }
}