@charset "utf-8";
/*
    Theme Name: VN4U Themes
    Description: Website: http://vn4u.vn/ - HotLine: 0984 510 136
    Version: 1.0.0
    Author: VN4U
    Author URI: http://vn4u.vn/
    Tags: CÔNG TY GIẢI PHÁP CÔNG NGHỆ VN4U VIỆT NAM chuyên: thiết kế website bất động sản, thiết kế website tin tức, thiết kế website giáo dục, thiết kế website du lịch, thiết kế website nhà hàng - khách sạn, Chuyên dich vụ chạy quảng cáo google, facebook, seo 
*/
/* ============================================
   SÁNG VIỆT THỊNH - Website Styles
   Color Palette: #2d2d2d | #f0a500 | #ffffff
   Focus: Video Production & Marketing
   ============================================ */

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #f0a500;
    --primary-dark: #d4920a;
    --primary-light: #ffc94d;
    --dark: #2d2d2d;
    --dark-light: #3d3d3d;
    --dark-lighter: #555555;
    --white: #ffffff;
    --gray-light: #f5f5f5;
    --gray: #e0e0e0;
    --gray-dark: #999999;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
}

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

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary);
    color: var(--dark);
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(240, 165, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--dark);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
    background: var(--primary);
    color: var(--dark);
    border-radius: 50px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.btn-sm:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

/* ============================================
   HEADER - TRANSPARENT → SOLID ON SCROLL
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: transparent;
    transition: all 0.4s ease;
}

/* Scrolled state - solid background */
.header.scrolled {
    background: rgba(45, 45, 45, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    object-fit: cover;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 18px;
    color: var(--white);
    letter-spacing: 1px;
}

.brand-slogan {
    font-size: 11px;
    color: var(--primary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 26px;
}

.nav-list a {
    color: var(--white);
    font-weight: 500;
    font-size: 14px;
    position: relative;
    padding: 5px 0;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-hotline {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: var(--dark);
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

.btn-hotline:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition);
}

/* ============================================
   LANGUAGE SWITCHER
   ============================================ */
.lang-switcher {
    position: relative;
}
.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--white);
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Open Sans', sans-serif;
}
.lang-btn:hover {
    background: rgba(255,255,255,0.15);
    border-color: var(--primary);
}
.lang-btn .fa-globe {
    color: var(--primary);
}
.lang-arrow {
    font-size: 10px;
    transition: transform 0.3s;
}
.lang-switcher.open .lang-arrow {
    transform: rotate(180deg);
}
.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    min-width: 160px;
    padding: 8px 0;
    list-style: none;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
    z-index: 1000;
}
.lang-switcher.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.lang-dropdown li {
    margin: 0;
}
.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--dark);
    text-decoration: none;
    transition: all 0.2s;
}
.lang-option:hover {
    background: rgba(240,165,0,0.08);
    color: var(--primary-dark);
}
.lang-option.active {
    color: var(--primary);
    font-weight: 700;
    background: rgba(240,165,0,0.05);
}
.header.scrolled .lang-btn {
    background: rgba(45,45,45,0.1);
    border-color: rgba(45,45,45,0.15);
    color: var(--dark);
}
.header.scrolled .lang-btn .fa-globe {
    color: var(--primary);
}

/* ============================================
   HERO - Video Production Focus
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg-video {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(45, 45, 45, 0.92) 0%, rgba(0, 0, 0, 0.75) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 60px 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(240, 165, 0, 0.15);
    border: 1px solid rgba(240, 165, 0, 0.4);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 25px;
}

.hero-title {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-title .highlight {
    color: var(--primary);
    display: inline-block;
}

.hero-desc {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.85);
    max-width: 700px;
    margin: 0 auto 35px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
}

/* ============================================
   SECTION COMMON
   ============================================ */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    display: inline-block;
    background: rgba(240, 165, 0, 0.1);
    color: var(--primary-dark);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 15px;
}

.section-desc {
    font-size: 16px;
    color: var(--dark-lighter);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   SERVICES - Featured Cards with Images
   ============================================ */
.services {
    background: var(--gray-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card.featured {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.service-card.featured:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.service-card.featured .service-img {
    height: 200px;
    overflow: hidden;
}

.service-card.featured .service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card.featured:hover .service-img img {
    transform: scale(1.05);
}

.service-content {
    padding: 25px;
}

.service-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    font-size: 20px;
    color: var(--dark);
}

.service-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.service-content p {
    font-size: 14px;
    color: var(--dark-lighter);
    margin-bottom: 15px;
    line-height: 1.6;
}

.service-features {
    list-style: none;
    margin-bottom: 18px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--dark-light);
    padding: 4px 0;
}

.service-features li i {
    color: var(--primary);
    font-size: 12px;
}

.service-link {
    color: var(--primary-dark);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.service-link:hover {
    color: var(--primary);
    gap: 10px;
}

/* ============================================
   PORTFOLIO
   ============================================ */
.portfolio {
    background: var(--dark);
}

.portfolio .section-tag {
    background: rgba(240, 165, 0, 0.2);
    color: var(--primary);
}

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

.portfolio .section-desc {
    color: rgba(255, 255, 255, 0.7);
}

.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--dark-lighter);
    background: transparent;
    color: var(--white);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary);
    background: var(--primary);
    color: var(--dark);
}

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

.portfolio-item.large {
    grid-column: span 2;
}

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

.portfolio-thumb {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.portfolio-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(240, 165, 0, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-thumb:hover img {
    transform: scale(1.1);
}

.portfolio-thumb:hover .portfolio-overlay {
    opacity: 1;
}

.play-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--dark);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    transition: var(--transition);
}

.play-btn:hover {
    transform: scale(1.1);
}

.portfolio-views {
    color: var(--dark);
    font-size: 13px;
    font-weight: 600;
}

.portfolio-item h4 {
    color: var(--white);
    margin-top: 15px;
    font-size: 16px;
    font-weight: 600;
}

.portfolio-cat {
    color: var(--primary);
    font-size: 13px;
    font-weight: 500;
}

.portfolio-cta {
    text-align: center;
    margin-top: 40px;
}

/* ============================================
   PROCESS - Quy trình
   ============================================ */
.process {
    background: var(--white);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.process-card {
    text-align: center;
    padding: 25px 15px;
    position: relative;
    border-radius: var(--radius);
    transition: var(--transition);
}

.process-card:hover {
    transform: translateY(-5px);
}

.process-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: rgba(240, 165, 0, 0.15);
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
}

.process-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    margin: 30px auto 20px;
    border: 3px solid var(--primary);
}

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

.process-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.process-card p {
    font-size: 13px;
    color: var(--dark-lighter);
    line-height: 1.6;
}

/* ============================================
   WHY US
   ============================================ */
.why-us {
    background: linear-gradient(135deg, var(--dark) 0%, #1a1a1a 100%);
}

.why-us .section-tag {
    background: rgba(240, 165, 0, 0.2);
    color: var(--primary);
}

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

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.why-card {
    text-align: center;
    padding: 35px 25px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.why-card:hover {
    background: rgba(240, 165, 0, 0.1);
    border-color: var(--primary);
    transform: translateY(-5px);
}

.why-icon {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 26px;
    color: var(--dark);
}

.why-card h3 {
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.why-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.6;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
    background: var(--gray-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.testimonial-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 16px;
}

.testimonial-text {
    font-size: 15px;
    color: var(--dark-lighter);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author strong {
    display: block;
    font-size: 15px;
    color: var(--dark);
}

.testimonial-author span {
    font-size: 13px;
    color: var(--gray-dark);
}

/* ============================================
   PRICING
   ============================================ */
.pricing {
    background: var(--white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--gray);
    border-radius: var(--radius);
    padding: 35px 25px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--dark);
    padding: 4px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.pricing-header {
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--gray);
}

.pricing-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.pricing-price {
    font-size: 14px;
    color: var(--dark-lighter);
}

.pricing-price span {
    font-family: 'Montserrat', sans-serif;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-dark);
    display: block;
    margin: 5px 0;
}

.pricing-header p {
    font-size: 13px;
    color: var(--gray-dark);
    margin-top: 8px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 25px;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--dark-light);
}

.pricing-features li i {
    color: var(--primary);
    font-size: 14px;
    flex-shrink: 0;
}

/* ============================================
   PRODUCTS - Compact (Secondary)
   ============================================ */
.products {
    background: var(--gray-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 30px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--gray);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--primary);
    color: var(--dark);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    z-index: 2;
}

.product-badge.sale {
    background: #e74c3c;
    color: var(--white);
}

.product-img {
    height: 200px;
    overflow: hidden;
    background: var(--gray-light);
}

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

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.product-feature {
    font-size: 13px;
    color: var(--dark-lighter);
    margin-bottom: 12px;
    line-height: 1.5;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.price-sale {
    font-size: 20px;
    font-weight: 700;
    color: #e74c3c;
}

.price-old {
    font-size: 14px;
    color: var(--gray-dark);
    text-decoration: line-through;
}

/* ============================================
   BLOG
   ============================================ */
.blog {
    background: var(--white);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.blog-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.blog-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.blog-card:hover .blog-img img {
    transform: scale(1.05);
}

.blog-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--primary);
    color: var(--dark);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}

.blog-content {
    padding: 20px;
}

.blog-content time {
    font-size: 13px;
    color: var(--gray-dark);
}

.blog-content h3 {
    margin: 8px 0 10px;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.4;
}

.blog-content h3 a:hover {
    color: var(--primary-dark);
}

.blog-content p {
    font-size: 14px;
    color: var(--dark-lighter);
    line-height: 1.6;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    background: var(--gray-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-info h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.contact-info > p {
    color: var(--dark-lighter);
    margin-bottom: 30px;
    line-height: 1.7;
}

.contact-list {
    list-style: none;
    margin-bottom: 25px;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 15px;
    color: var(--dark-light);
}

.contact-list li i {
    color: var(--primary);
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.contact-list a:hover {
    color: var(--primary-dark);
}

.contact-social {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.contact-social a {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--dark);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}

.contact-social a:hover {
    background: var(--primary);
    color: var(--dark);
    transform: translateY(-3px);
}

.contact-trust {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--dark-lighter);
}

.trust-item i {
    color: var(--primary);
}

.contact-form {
    background: var(--white);
    padding: 35px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 25px;
    color: var(--dark);
}

.form-group {
    margin-bottom: 16px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--gray);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark);
    padding: 60px 0 0;
    color: rgba(255, 255, 255, 0.8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    border-radius: 8px;
    margin-bottom: 15px;
}

.footer-col h4 {
    color: var(--white);
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-col p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 10px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-col ul li i {
    color: var(--primary);
    margin-right: 8px;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   FLOATING BUTTONS
   ============================================ */
.floating-buttons {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.float-btn:hover {
    transform: scale(1.1);
}

.float-phone {
    background: var(--primary);
    color: var(--dark);
    font-size: 22px;
}

.float-zalo {
    background: #0068ff;
    padding: 12px;
}

.float-zalo img {
    width: 28px;
    height: 28px;
    filter: brightness(10);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(240, 165, 0, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(240, 165, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(240, 165, 0, 0); }
}

/* Back to top */
.back-to-top {
    position: fixed;
    bottom: 150px;
    right: 30px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--dark);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 998;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary);
    color: var(--dark);
    transform: translateY(-3px);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .pricing-card.popular {
        transform: none;
    }

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

    .portfolio-item.large {
        grid-column: span 2;
    }

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

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 74px;
        left: 0;
        right: 0;
        background: var(--dark);
        padding: 20px;
        transform: translateY(-120%);
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }

    .nav.active {
        transform: translateY(0);
    }

    .nav-list {
        flex-direction: column;
        gap: 15px;
    }

    .nav-list a {
        font-size: 16px;
        display: block;
        padding: 8px 0;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 90vh;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-item.large {
        grid-column: span 1;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .floating-buttons {
        bottom: 15px;
        right: 15px;
    }

    .float-btn {
        width: 50px;
        height: 50px;
    }

    .back-to-top {
        bottom: 130px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    section {
        padding: 60px 0;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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

    .process-grid {
        grid-template-columns: 1fr;
    }

    .logo-text {
        display: none;
    }

    .btn-hotline {
        padding: 8px 12px;
        font-size: 12px;
    }
}

/* ============================================
   COMMON STYLES - Shared across all pages
   ============================================ */

/* Page Hero - Base Layout */
.page-hero {
    padding: 160px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(10,10,10,0.5) 0%, rgba(45,45,45,0.35) 100%);
}
.page-hero .container {
    position: relative;
    z-index: 1;
}
.page-hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}
.page-hero .hero-sub {
    color: rgba(255,255,255,0.75);
    font-size: 16px;
    max-width: 550px;
    margin: 0 auto;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}
.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
}
.breadcrumb a:hover {
    text-decoration: underline;
}
.breadcrumb span {
    color: rgba(255,255,255,0.5);
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    background: var(--gray-light);
}
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: var(--white);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid transparent;
    transition: var(--transition);
}
.faq-item:hover {
    border-color: var(--primary);
}
.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 15px;
    color: var(--dark);
}
.faq-question i {
    color: var(--primary);
    transition: var(--transition);
}
.faq-item.active .faq-question i {
    transform: rotate(180deg);
}
.faq-answer {
    padding: 0 24px 20px;
    display: none;
    font-size: 14px;
    color: var(--dark-lighter);
    line-height: 1.8;
}
.faq-item.active .faq-answer {
    display: block;
}

/* CTA Banner */
.cta-banner {
    padding: 70px 0;
    text-align: center;
    position: relative;
}
.cta-banner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10,10,10,0.6);
}
.cta-banner .container {
    position: relative;
    z-index: 1;
}
.cta-banner h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1.3rem, 2.5vw, 1.8rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}
.cta-banner p {
    color: rgba(255,255,255,0.6);
    margin-bottom: 25px;
}
.cta-banner-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    background: var(--primary);
    color: var(--dark);
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.3s ease;
}
.cta-banner-btn:hover {
    background: #d4900a;
    transform: scale(1.05);
}

/* Form Common */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: var(--transition);
    font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(240,165,0,0.1);
}

/* Responsive - Common */
@media (max-width: 576px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}