/* ================================
   RESET & BASE STYLES
   ================================ */


:root {
    /* Colors */
    --primary-color: #449AB8;
    --primary-hover: #FF1616;
    --secondary-color: #00C5DB;
    --accent-cyan: #3085FF;
    --accent-purple: #CE48FF;
    --accent-orange: #FF9378;
    --text-dark: #545454;
    --text-white: #ffffff;
    --bg-white: #ffffff;
    --bg-light: #F4F4F4;
    --bg-gray: #F1F3F4;

    /* Typography */
    --font-primary: 'Roboto', sans-serif;
    --font-size-base: 17px;
    --font-size-sm: 15px;
    --font-size-lg: 19px;
    --line-height: 1.6;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 72px;

    /* Border Radius */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 20px;
    --radius-xl: 50px;

    /* Container */
    --container-desktop: 1146px;
    --container-mobile: 420px;

    /* Transitions */
    --transition-base: all 0.3s ease;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--primary-color);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ================================
   CONTAINER
   ================================ */

.container {
    max-width: var(--container-desktop);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ================================
   TYPOGRAPHY
   ================================ */

.section-title {
    font-size: 35px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.section-title-white {
    color: var(--text-white);
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--text-dark);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    text-align: justify;
    line-height: var(--line-height);
    margin-bottom: var(--spacing-lg);
}

/* ================================
   BUTTONS
   ================================ */

.btn {
    display: inline-block;
    padding: 12px 32px;
    font-size: var(--font-size-lg);
    font-weight: 700;
    text-align: center;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-white);
    box-shadow: 0 15px 20px -15px rgba(0, 0, 0, 0.5);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -15px rgba(0, 0, 0, 0.6);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-pulse {
    animation: pulse 1s infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

/* ================================
   HERO SECTION
   ================================ */

.hero-section {
    position: relative;
    height: 800px;
    /* height: calc(100vh - 134px); */
    background: url('/landingpage/doanhnghiep/images/hero-bg.jpg') top center/cover no-repeat;
    display: flex;
    justify-content: center;
    text-align: center;
    color: var(--text-white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 2;
    /* max-width: 900px; */
    padding: var(--spacing-md);
}

.hero-logo {
    width: 150px;
    margin: var(--spacing-md) auto 220px;
}

.hero-title {
    font-size: 33px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-xl);
}

.hero-wave {
    position: absolute;
    bottom: 0px;
    left: 0;
    width: 100%;
    height: 108px;
}
.hero-wave svg {
    fill:rgb(255, 255, 255)
}

/* ================================
   INTRO SECTION
   ================================ */

.intro-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-white);
}

.brand-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.brand-logos img {
    max-width: 120px;
    height: auto;
    object-fit: contain;
    filter: grayscale(30%);
    transition: var(--transition-base);
}

.brand-logos img:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.05);
}

/* ================================
   MISSION SECTION
   ================================ */

.mission-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-light);
}

.mission-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    text-align: justify;
}

.mission-text p {
    margin-bottom: var(--spacing-md);
}

.mission-video {
    position: relative;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 60px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-lg);
    color: var(--text-dark);
}

/* ================================
   PRODUCTS CAROUSEL
   ================================ */

.products-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-white);
}

.products-carousel {
    position: relative;
    overflow: hidden;
    margin-top: var(--spacing-lg);
}

.carousel-track {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.carousel-track::-webkit-scrollbar {
    display: none;
}

.product-item {
    flex: 0 0 290px;
    height: 450px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--bg-white);
    transition: var(--transition-base);
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.product-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(68, 154, 184, 0.8);
    color: var(--text-white);
    border-radius: 50%;
    font-size: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: var(--transition-base);
}

.carousel-btn:hover {
    background-color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn.prev {
    left: 10px;
}

.carousel-btn.next {
    right: 10px;
}

/* ================================
   CLIENTS SECTION
   ================================ */

.clients-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--primary-color);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.client-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 150px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition-base);
}

.client-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.client-card img {
    max-width: 150px;
    max-height: 80px;
    object-fit: contain;
}

/* ================================
   WHY CHOOSE US SECTION
   ================================ */

.why-choose-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-white);
}

.section-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    align-items: start;
}

.feature-card {
    border-radius: 0 var(--radius-xl) var(--radius-xl) var(--radius-xl);
    padding: var(--spacing-md);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
}

.feature-card-blue {
    background: #00C5DB;
}

.feature-card-blue::before {
    background: linear-gradient(90deg, #44EEB1, #00C5DB);
}

.feature-card-orange {
    background: #ff9477;
    margin-top: 100px;
}

.feature-card-cyan {
    background: #3085FF;
}

.feature-card-cyan::before {
    background: linear-gradient(90deg, #22E2FF, #3085FF);
}

.feature-card-purple {
    background: #CD48FF;
    margin-top: 100px;
}

.feature-card-purple::before {
    background: linear-gradient(90deg, #FF91E3, #CD48FF);
}

.feature-card-orange::before {
    background: linear-gradient(90deg, #FFD575, #FF9378);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
    position: relative;
    z-index: 1;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
    text-align: left;
}

.feature-card p {
    font-size: var(--font-size-base);
    color: var(--text-white);
    line-height: var(--line-height);
    text-align: justify;
    position: relative;
    z-index: 1;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

/* ================================
   BENEFITS SECTION
   ================================ */

.benefits-section {
    padding: var(--spacing-md) 0;
    background-color: var(--primary-color);
    text-align: center;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    /* margin: var(--spacing-xl) 0; */
}

.benefit-item {
    text-align: center;
}

.benefit-item img {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-sm);
}

.benefit-item h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-white);
}

/* ================================
   FOOTER
   ================================ */

.footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    background-color: var(--bg-white);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.footer-col ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-col a:hover {
    color: var(--primary-color);
}

.footer-logo {
    width: 150px;
    margin-bottom: var(--spacing-md);
}

.footer-cert,
.payment-methods {
    max-width: 200px;
    margin-top: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-links a {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-gray);
    border-radius: 50%;
    color: var(--text-dark);
    transition: var(--transition-base);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--text-white);
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--bg-gray);
}

.gov-cert {
    max-width: 200px;
    margin: 0 auto;
}

/* ================================
   POPUP
   ================================ */

.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.popup-content {
    position: relative;
    background-color: #1488c2;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    max-width: 420px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    font-size: 24px;
    line-height: 1;
    color: white;
    background-color: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
}

.popup-close:hover {
    color: var(--primary-hover);
    transform: rotate(90deg);
}

.popup-logo {
    max-width: 150px;
    margin: 0 auto var(--spacing-md);
}

/* ================================
   FORM
   ================================ */

.contact-form {
    width: 100%;
}

.form-group {
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px var(--spacing-sm);
    font-size: var(--font-size-base);
    font-family: inherit;
    border: 1px solid var(--bg-gray);
    border-radius: var(--radius-sm);
    background-color: var(--bg-white);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(68, 154, 184, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* ================================
   RESPONSIVE - TABLET
   ================================ */

@media (max-width: 1024px) {
    .mission-content {
        grid-template-columns: 1fr;
    }

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

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

/* ================================
   RESPONSIVE - MOBILE
   ================================ */

@media (max-width: 767px) {
    :root {
        --font-size-base: 14px;
        --spacing-lg: 32px;
        --spacing-xl: 48px;
    }

    .container {
        max-width: var(--container-mobile);
    }

    /* Hero */
    .hero-section {
        max-height: 700px;
    }
    .hero-content {
        padding: 0;
    }

    .hero-logo {
        width: 100px;
    }

    .hero-title {
        font-size: 25px;
    }

    /* Typography */
    .section-title {
        font-size: 25px;
    }

    .stat-number {
        font-size: 50px;
    }

    /* Grid Layouts */
    .brand-logos {
        gap: var(--spacing-sm);
    }

    .brand-logos img {
        max-width: 80px;
    }

    .stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .carousel-track {
        gap: var(--spacing-sm);
    }

    .product-item {
        flex: 0 0 250px;
        height: 350px;
    }

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .client-card {
        min-height: 100px;
        padding: var(--spacing-sm);
    }

    .client-card img {
        max-width: 100px;
        max-height: 60px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .feature-card::before {
        height: 100px;
    }

    .feature-card h3 {
        font-size: var(--font-size-lg);
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .benefit-item img {
        width: 100px;
        height: 100px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* Buttons */
    .btn {
        padding: 10px 24px;
        font-size: var(--font-size-base);
    }

    /* Carousel buttons */
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }
    .stats{margin-top: 0;}
    .feature-card-orange, .feature-card-purple {
        margin-top: 0;
    }
    .article-card{
        display: grid !important;
        grid-template-columns: 1fr 2fr;
        gap: 5px !important;
        align-items:start !important
    }
    .article-card .article-image img {
        width: 80px;
    }
}

/* ================================
   UTILITIES
   ================================ */

.text-center {
    text-align: center;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--spacing-xs);
}

.mb-2 {
    margin-bottom: var(--spacing-sm);
}

.mb-3 {
    margin-bottom: var(--spacing-md);
}

.mb-4 {
    margin-bottom: var(--spacing-lg);
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--spacing-xs);
}

.mt-2 {
    margin-top: var(--spacing-sm);
}

.mt-3 {
    margin-top: var(--spacing-md);
}

.mt-4 {
    margin-top: var(--spacing-lg);
}

.articles-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--primary-color);
}

.articles-section .section-subtitle {
    color: var(--text-white);
    margin-bottom: var(--spacing-lg);
}

.article-card {
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 30px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.article-card .article-image {
    position: relative;
}

.article-card .article-image img {
    width: 180px;
    height: auto;
}

.article-content {
    flex: 1;
    color: white;
    padding: 10px;
}

.article-content h2 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.article-content p {
    /* font-size: 1.1rem; */
    line-height: 1.5;
    font-weight: 300;
    opacity: 0.9;
}
#section-advantage{margin-top: 0;}
#contactForm2 .head-title{color: white;font-size: 20px;padding-bottom: 10px;font-weight: 600;}