/* CSS Variables for Theme */
:root {
    /* Dark Mode Colors (Default) */
    --bg-primary: #000712;
    --bg-secondary: rgba(0, 0, 0, 0.64);
    --bg-tertiary: rgba(0, 0, 0, 0.4096);
    --text-primary: #FFFFFF;
    --text-secondary: #B8B8B8;
    --text-gradient-start: #FFFFFF;
    --text-gradient-end: rgba(255, 255, 255, 0.64);
    --accent-color: #99EA48;
    --accent-hover: #8BD93E;
    --border-color: rgba(255, 255, 255, 0.13);
    --border-secondary: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(255, 255, 255, 0.01);
    --card-border: rgba(255, 255, 255, 0.06);
    --overlay-bg: rgba(255, 255, 255, 0.02);
}

/* Light Mode Colors */
body:not(.dark-mode) {
    --bg-primary: #FAFAFA;                 /* nền chính: trắng ngà, không quá chói */
    --bg-secondary: #F3F4F6;               /* nền phụ: xám rất nhạt */
    --bg-tertiary: #E5E7EB;                /* nền phụ 2: xám nhạt hơn chút */
    
    --text-primary: #1F2937;               /* chữ chính: xám đậm (dễ đọc trên nền sáng) */
    --text-secondary: #4B5563;             /* chữ phụ: xám trung bình, không bị mờ */
    
    --text-gradient-start: #111827;        /* gradient chữ từ đen đậm */
    --text-gradient-end: #374151;          /* tới xám đậm */
    
    --accent-color: #2563EB;               /* xanh dương tươi (nút, link) */
    --accent-hover: #1D4ED8;               /* xanh dương đậm hơn khi hover */
    
    --border-color: rgba(0, 0, 0, 0.1);    /* viền nhạt */
    --border-secondary: rgba(0, 0, 0, 0.05);
    
    --card-bg: #FFFFFF;                    /* card nền trắng rõ, không trong suốt */
    --card-border: rgba(0, 0, 0, 0.08);
    
    --overlay-bg: rgba(250, 250, 250, 0.95); 
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Background */
.bg-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
}

.logo-unitrux {
  width: 150px;   /* hoặc % tùy ý */
  height: 50px;
  background-image: url('logo-unitrux.jpg');
  background-size: cover; /* ảnh lấp đầy */
  background-position: center;
  background-repeat: no-repeat;
  filter: brightness(0.8) contrast(1.1);
}


.earth-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 25%;
    left: 0;
    background: url('Anh-Trai-Dat-2.jpeg') center/cover;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.8) contrast(1.1);
}

.earth-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.3) 0%, rgba(0,20,40,0.5) 50%, rgba(0,0,0,0.7) 100%);
    mix-blend-mode: normal;
}

.earth-color {
    position: absolute;
    width: 100%;
    height: 180%;
    top: -40%;
    left: 0;
    background: #000000;
    mix-blend-mode: color;
}

/* Điều chỉnh background cho chế độ sáng */
body:not(.dark-mode) .earth-overlay {
    background: linear-gradient(135deg, rgba(255,255,255,0.7) 0%, rgba(240,245,255,0.8) 50%, rgba(245,250,255,0.9) 100%);
}

body:not(.dark-mode) .earth-color {
    background: #FFFFFF;
    opacity: 0.5;
    mix-blend-mode: overlay;
}

body:not(.dark-mode) .earth-bg {
    filter: brightness(1.2) contrast(0.9) saturate(0.8);
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 21px 5%;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 100;
}

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

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-color);
    border-radius: 6px;
}

.logo-text {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 24px;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 80px;
    align-items: center;
}

.nav-link {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 20px;
    letter-spacing: 0.2px;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-contact {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px 32px;
    background: var(--card-bg);
    backdrop-filter: blur(10.45px);
    border-radius: 8px;
    border: 1px solid var(--border-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-contact:hover {
    background: var(--overlay-bg);
    border-color: var(--accent-color);
}

.nav-contact span {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 16px;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

/* Main Content */
.main-content {
    position: relative;
    z-index: 10;
}

/* Hero Section */
.hero-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 640px;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-description {
    max-width: 700px;
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 18px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-top: -10px;
}

.btn-cta {
    position: relative;
    overflow: hidden;
    font-weight: 600;
    padding: 12px 36px;
    font-size: 17px;
    box-shadow: 0 4px 12px rgba(153, 234, 72, 0.3);
}

.hero-visual {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    pointer-events: none;
}

.visual-element {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
}

.visual-element-1 {
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    top: -50px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.visual-element-2 {
    width: 200px;
    height: 200px;
    background: #4158D0;
    bottom: -50px;
    left: -50px;
    animation: float 10s ease-in-out infinite 1s;
}

.visual-element-3 {
    width: 150px;
    height: 150px;
    background: #FFCC70;
    top: 50%;
    left: 10%;
    animation: float 12s ease-in-out infinite 2s;
}

@keyframes float {
    0% { transform: translateY(0) translateX(0); }
    50% { transform: translateY(-20px) translateX(20px); }
    100% { transform: translateY(0) translateX(0); }
}

.hero-badge {
    display: flex;
    align-items: center;
    padding: 4px 11px 5px;
    background: var(--overlay-bg);
    border: 1px solid var(--card-border);
    box-shadow: inset 0px -4px 12px 1px var(--border-secondary);
    backdrop-filter: blur(6px);
    border-radius: 99px;
}

.hero-badge span {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 12px;
    line-height: 20px;
    color: var(--text-primary);
}

.hero-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.title-line {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 500;
    font-size: 80px;
    line-height: 96px;
    letter-spacing: -0.22px;
    background: linear-gradient(180deg, var(--text-gradient-start) 0%, var(--text-gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (max-width: 768px) {
    .title-line {
        font-size: 40px;
        line-height: 48px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
    }
/*     
    .card-highlight {
        box-shadow: none;
    } */
}

.hero-buttons {
    display: flex;
    gap: 16px;
    align-items: center;
}

.btn-primary {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px 32px;
    background: var(--accent-color);
    border: 1px solid var(--card-bg);
    backdrop-filter: blur(10.45px);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 16px;
    color: #FFFFFF;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

body:not(.dark-mode) .btn-primary {
    color: #FFFFFF;
}

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

.btn-secondary {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px 32px;
    background: var(--card-bg);
    border: 1px solid var(--accent-color);
    backdrop-filter: blur(10.45px);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 16px;
    color: var(--accent-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(34, 197, 94, 0.1);
    transform: translateY(-2px);
}

body:not(.dark-mode) .btn-secondary:hover {
    background: rgba(37, 99, 235, 0.1);
}

body.dark-mode .btn-secondary:hover {
    background: rgba(153, 234, 72, 0.1);
}

/* About Section */
.about-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 100px 5%;
    /* background: linear-gradient(180deg, var(--bg-tertiary) 0%, transparent 100%); */
    background: var(--bg-secondary);
    position: relative;
}

.about-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 50px;
    width: 100%;
    max-width: 1440px;
}       

.about-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.about-badge {
    display: flex;
    align-items: center;
    padding: 4px 11px 5px;
    background: var(--overlay-bg);
    border: 1px solid var(--card-border);
    box-shadow: inset 0px -4px 12px 1px var(--border-secondary);
    backdrop-filter: blur(6px);
    border-radius: 99px;
    width: fit-content;
}

.about-badge span {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 12px;
    line-height: 20px;
    color: var(--text-primary);
}

.about-title {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 500;
    font-size: 40px;
    line-height: 48px;
    letter-spacing: -0.17px;
    background: linear-gradient(180deg, var(--text-gradient-start) 0%, var(--text-gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 16px 0;
}

.about-description {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 20px;
    color: var(--text-secondary);
    text-align: justify;
}

.stats-container {
    display: flex;
    gap: 48px;
    align-items: flex-start;
    flex-wrap: wrap;
    justify-content: center;
}

@media (max-width: 768px) {
    .stats-container {
        gap: 20px;
    }
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 28px 30px;
    background: linear-gradient(180deg, var(--overlay-bg) 0%, transparent 100%), var(--bg-secondary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(6px);
    border-radius: 12px;
    position: relative;
    width: 100%;
    max-width: 220px;
}

@media (max-width: 768px) {
    .stat-card {
        padding: 20px 15px;
    }
}

.stat-highlight {
    position: absolute;
    width: 48px;
    height: 2px;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    box-shadow: 0px 33px 80px rgba(252, 228, 143, 0.6), 
                0px 16px 40px rgba(187, 143, 252, 0.64), 
                0px 10px 24px rgba(252, 228, 143, 0.48);
}

.stat-number {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 700;
    font-size: 24px;
    line-height: 24px;
    background: linear-gradient(180deg, var(--text-gradient-start) 0%, var(--text-gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 400;
    font-size: 14px;
    line-height: 24px;
    background: linear-gradient(180deg, var(--text-gradient-start) 0%, var(--text-gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-divider {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1440px;
    height: 1px;
    background: var(--border-color);
}

/* Features Section */
.features-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 100px 5%;
    gap: 80px;
    background: var(--bg-secondary);
}

.features-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 80px;
    width: 100%;
    max-width: 1453px;
}

.section-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}

.section-badge {
    display: flex;
    align-items: center;
    padding: 4px 11px 5px;
    background: var(--overlay-bg);
    border: 1px solid var(--card-border);
    box-shadow: inset 0px -4px 12px 1px var(--border-secondary);
    backdrop-filter: blur(6px);
    border-radius: 99px;
}

.section-badge span {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 12px;
    line-height: 20px;
    color: var(--text-primary);
}

.section-title {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 500;
    font-size: 48px;
    line-height: 58px;
    letter-spacing: -0.19px;
    background: linear-gradient(180deg, var(--text-gradient-start) 0%, var(--text-gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    max-width: 736px;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 32px;
        line-height: 40px;
    }
    
    .features-section,
    .about-section {
        padding: 60px 5%;
        gap: 40px;
    }
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    width: 100%;
}

.feature-card {
    display: flex;
    flex-direction: column;
    padding: 5px;
    background: linear-gradient(180deg, var(--overlay-bg) 0%, transparent 100%), var(--bg-secondary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(1.5px);
    border-radius: 24px;
    position: relative;
    min-height: 315px;
}

.card-highlight {
    position: absolute;
    width: 48px;
    height: 2px;
    top: 2px;
    left: 41px;
    background: var(--accent-color);
    box-shadow: 0px 4px 8px rgba(252, 228, 143, 0.3), 
                0px 2px 4px rgba(187, 143, 252, 0.32), 
                0px 1px 2px rgba(252, 228, 143, 0.24);
}

.card-content {
    display: flex;
    flex-direction: column;
    padding: 36px;
    gap: 23px;
    flex: 1;
}

.feature-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: inset 0px -4px 8px 1px var(--border-secondary);
    backdrop-filter: blur(6px);
    border-radius: 8px;
    position: relative;
}

.icon-blur {
    position: absolute;
    width: 80px;
    height: 80px;
    background: var(--accent-color);
    filter: blur(8px);
    opacity: 0.3;
}

.feature-icon svg {
    width: 50px;
    height: 50px;
    z-index: 1;
    position: relative;
}

.feature-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-title {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 500;
    font-size: 24px;
    line-height: 34px;
    letter-spacing: -0.1px;
    color: var(--text-primary);
    text-transform: capitalize;
}

.feature-description {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
   color: var(--text-secondary);
}

/* Features List */
.features-scroll-container {
    width: 100%;
    overflow: hidden;
    margin-top: 48px;
    position: relative;
}

.features-scroll-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100px;
    height: 100%;
    background: linear-gradient(90deg, var(--bg-primary) 0%, transparent 100%);
    z-index: 2;
    pointer-events: none;
}

.features-scroll-container::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100%;
    background: linear-gradient(270deg, var(--bg-primary) 0%, transparent 100%);
    z-index: 2;
    pointer-events: none;
}

.features-list {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 40px;
    animation: scroll-left 30s linear infinite;
    width: fit-content;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 200px;
}

.feature-check-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: rgba(34, 197, 94, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

body.dark-mode .feature-check-icon {
    background: rgba(153, 234, 72, 0.1);
}

.feature-text {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 18px;
    line-height: 20px;
    color: var(--text-primary);
    white-space: nowrap;
}

/* Services Section */
.services-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 100px 240px;
    gap: 48px;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.services-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.bg-blur-1 {
    position: absolute;
    width: 680px;
    height: 2200px;
    left: -163px;
    top: -207px;
    background: radial-gradient(50% 50% at 50% 50%, #090909 0%, rgba(41, 52, 72, 0) 100%);
    filter: blur(60px);
    transform: rotate(60deg);
}

.bg-blur-2 {
    position: absolute;
    width: 680px;
    height: 680px;
    right: -200px;
    top: 50%;
    transform: translateY(-50%);
    background: radial-gradient(50% 50% at 50% 50%, #363636 0%, rgba(44, 44, 44, 0) 100%);
    opacity: 0.48;
    filter: blur(50px);
}

.bg-blur-3 {
    position: absolute;
    width: 321px;
    height: 321px;
    left: 301px;
    top: 20%;
    background: radial-gradient(50% 50% at 50% 50%, #424242 0%, rgba(44, 44, 44, 0) 100%);
    opacity: 0.4;
    filter: blur(50px);
}

.services-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.section-description {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 18px;
    line-height: 28px;
    text-align: center;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 5px auto 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    width: 100%;
}

.service-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 32px;
    background: linear-gradient(180deg, var(--overlay-bg) 0%, transparent 100%), var(--bg-secondary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(1.5px);
    border-radius: 12px;
    position: relative;
    transition: all 0.3s ease;
    min-height: 380px;
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(153, 234, 72, 0.1);
    border-radius: 50%;
    margin-bottom: 20px;
}

.service-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

.service-number {
    position: absolute;
    top: 0px;
    right: 0px;
    width: 32px;
    height: 32px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 600;
    font-size: 16px;
    color: #000000;
    z-index: 2;
}

.service-divider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color) 0%, rgba(153, 234, 72, 0) 100%);
    border-radius: 12px 12px 0 0;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.service-features li {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 14px;
    line-height: 20px;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
}

.service-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.service-description {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    color: var(--text-secondary);
    margin: 0 0 20px 0;
}

.btn-learn-more {
    display: inline-flex;
    align-items: center;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 16px;
    line-height: 24px;
    color: var(--accent-color);
    text-decoration: none;
    margin-top: 24px;
    transition: all 0.3s ease;
    position: relative;
}

.btn-learn-more::after {
    content: '→';
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.btn-learn-more:hover {
    color: var(--accent-hover);
}

.btn-learn-more:hover::after {
    transform: translateX(5px);
}

.cta-card {
    background: linear-gradient(135deg, rgba(153, 234, 72, 0.1) 0%, rgba(153, 234, 72, 0.05) 100%), rgba(7, 7, 9, 0.24);
    border: 1px solid rgba(153, 234, 72, 0.3);
    text-align: center;
    justify-content: center;
    grid-column: 1 / -1;
    grid-row: auto;
}

.cta-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.cta-card h3 {
    color: var(--accent-color);
    margin-bottom: 0;
}

.cta-card p {
    text-align: center;
    margin: 0;
}

.phone-number {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 600;
    font-size: 20px;
    color: var(--text-primary);
    background: rgba(153, 234, 72, 0.1);
    padding: 12px 24px;
    border-radius: 8px;
    border: 1px solid rgba(153, 234, 72, 0.3);
    margin-top: 16px;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(153, 234, 72, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.service-card h3 {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 500;
    font-size: 20px;
    line-height: 28px;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-content p,
.service-card p {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    color: #B8B8B8;
}

/* Why Choose Us Section */
.why-choose-section {
    padding: 80px 5%;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.why-choose-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
}

.why-choose-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    width: 100%;
}

@media (max-width: 1024px) {
    .why-choose-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .why-choose-grid {
        grid-template-columns: 1fr;
    }
    
    .why-choose-section {
        padding: 60px 5%;
    }
}

.why-choose-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 32px;
    background: linear-gradient(180deg, var(--overlay-bg) 0%, transparent 100%), var(--bg-secondary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(1.5px);
    border-radius: 12px;
    position: relative;
    transition: all 0.3s ease;
    min-height: 280px;
}

.why-choose-card:hover {
    transform: translateY(-5px);
    border-color: rgba(153, 234, 72, 0.3);
}

.why-choose-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(153, 234, 72, 0.1);
    border-radius: 50%;
    margin-bottom: 20px;
}

.why-choose-title {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 500;
    font-size: 24px;
    line-height: 34px;
    letter-spacing: -0.1px;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.why-choose-description {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    color: var(--text-secondary);
}

/* Mobile nhỏ hơn 768px */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 20px;
        min-height: auto;
    }
    
    .hero-container {
        padding: 0;
    }
    
    .hero-description {
        font-size: 16px;
        line-height: 24px;
        margin-bottom: 30px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: 15px;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
        padding: 12px 20px;
        font-size: 16px;
        border-radius: 8px;
    }
    
    .btn-primary:active,
    .btn-secondary:active {
        transform: scale(0.98);
    }
    
    .why-choose-section {
        padding: 50px 20px; /* giảm padding để vừa màn hình */
    }
    
    .why-choose-grid {
        grid-template-columns: 1fr; /* 1 cột cho mobile */
        gap: 20px;
    }
    
    .why-choose-card {
        padding: 20px; /* giảm padding card */
        min-height: auto; /* tránh card quá cao */
    }
    
    .why-choose-title {
        font-size: 20px;
        line-height: 28px;
    }
    
    .why-choose-description {
        font-size: 14px;
        line-height: 20px;
    }
    
    .why-choose-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 16px;
    }
    
    .about-section {
        padding: 50px 20px;
    }
    
    .features-section {
        padding: 50px 20px;
    }
    
    .section-header {
        margin-bottom: 30px;
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .navbar {
        padding: 21px 50px;
    }
    
    .about-section,
    .features-section,
    .services-section,
    .why-choose-section,
    .testimonials-section {
        padding: 80px 50px;
    }
    
    .hero-section {
        padding: 80px 50px;
    }
    
    .features-grid,
    .why-choose-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: 1fr 1fr;
        height: auto;
    }
    
    .cta-card {
        grid-column: 1 / -1;
        grid-row: 3;
    }
    
    .service-number {
        width: 0px;
        height: 0px;
        font-size: 14px;
        top: 10px;
        right: 10px;
    }
    
    .service-features li {
        font-size: 13px;
        line-height: 18px;
    }
    
    .phone-number {
        font-size: 18px;
        padding: 10px 20px;
    }
}

/* Testimonials Section */
.testimonials-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 100px 240px;
    gap: 48px;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0));
}

.testimonials-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 60px;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
}

/* Client Logos */
.client-logos {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
    width: 100%;
    margin: 0 auto 20px;
}

.logo-item {
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.logo-item:hover {
    opacity: 1;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    width: 100%;
    margin-bottom: 60px;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.testimonial-card {
    background: linear-gradient(180deg, var(--overlay-bg) 0%, transparent 100%), var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    transition: all 0.3s ease, opacity 0.5s ease;
    opacity: 1;
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.testimonial-card:hover {
    transform: translateY(-6px);
    border-color: rgba(153, 234, 72, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 15px;
    font-size: 60px;
    font-family: 'Georgia', serif;
    color: var(--accent-color);
    opacity: 0.2;
    line-height: 1;
}

.testimonial-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.quote-icon {
    margin-bottom: 8px;
}

.testimonial-text {
    font-family: 'Inter', sans-serif;
    font-style: italic;
    font-weight: 400;
    font-size: 16px;
    line-height: 26px;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 16px;
}

.author-info h4 {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 600;
    font-size: 18px;
    line-height: 24px;
    color: var(--text-primary);
    margin: 0;
}

.author-info p {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 14px;
    line-height: 20px;
    color: var(--text-secondary);
    margin: 4px 0 0;
}

/* Case Studies */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    width: 100%;
}

.case-study-card {
    background: linear-gradient(180deg, var(--overlay-bg) 0%, transparent 100%), var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.case-study-card:hover {
    transform: translateY(-5px);
    border-color: rgba(153, 234, 72, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.case-study-image {
    width: 100%;
    height: 200px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-study-content {
    padding: 32px;
}

.case-study-content h3 {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 600;
    font-size: 18px;
    line-height: 32px;
    color: var(--text-primary);
    margin: 0 0 16px;
}

.case-study-content p {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    color: var(--text-secondary);
    margin: 0 0 24px;
}

.case-study-results {
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.result-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.result-number {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 300;
    font-size: 18px;
    line-height: 18px;
    color: var(--accent-color);
    margin-bottom: 8px;
}

.result-label {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 14px;
    line-height: 20px;
    color: var(--text-secondary);
}

/* Packages Section */
.packages-section {
    padding: 80px 200px;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.packages-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto;
    gap: 30px;
    width: 100%;
}

.package-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 32px;
    background: linear-gradient(180deg, var(--overlay-bg) 0%, transparent 100%), var(--bg-secondary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(1.5px);
    border-radius: 12px;
    min-height: 380px;
    position: relative;
    transition: all 0.3s ease;
}

.package-card:hover {
    transform: translateY(-5px);
    border-color: rgba(153, 234, 72, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.package-card-wide {
    grid-column: 1 / -1;
    justify-self: center;
    width: 800px;
}

.featured-package {
    background: linear-gradient(135deg, rgba(153, 234, 72, 0.1) 0%, rgba(153, 234, 72, 0.05) 100%), rgba(7, 7, 9, 0.24);
    border: 1px solid rgba(153, 234, 72, 0.3);
    box-shadow: 0 8px 24px rgba(153, 234, 72, 0.1);
}

.popular-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--accent-color);
    color: #000000;
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 600;
    font-size: 14px;
    padding: 6px 16px;
    border-radius: 20px;
    z-index: 2;
}

.package-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin-bottom: 16px;
}

.crown-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(153, 234, 72, 0.1);
    border-radius: 8px;
    padding: 8px;
}

.crown-icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

.package-badge {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 14px;
    line-height: 18px;
    color: var(--text-secondary);
    text-align: right;
}

.package-title {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 600;
    font-size: 24px;
    line-height: 30px;
    color: var(--text-primary);
    margin: 0 0 12px 0;
}

.package-description {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    color: var(--text-secondary);
    margin: 0 0 20px 0;
}

.package-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    margin-bottom: 24px;
    align-items: flex-start;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: flex-start;
    text-align: left;
    width: 100%;
}

.feature-icon {
    width: 16px;
    height: 16px;
    color: var(--accent-color);
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-package-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    background: var(--accent-color);
    color: #FFFFFF;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 16px;
    line-height: 24px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    margin-top: auto;
    align-self: center;
}

.btn-package-cta:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-package-cta.secondary {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
}

.btn-package-cta.secondary:hover {
    background: rgba(153, 234, 72, 0.1);
    color: var(--accent-hover);
}

body:not(.dark-mode) .btn-package-cta.secondary:hover {
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-hover);
}

.feature-icon-card-choose-us {
    width: 30.8px;
    height: 30.8px;
    color: #FFFFFF;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-item span {
    font-family: 'Inter', sans-serif;
    font-size: 9.6px;
    line-height: 16px;
    letter-spacing: -0.192px;
    color: #FFFFFF;
}

/* Full-width CTA Banner */
.full-width-cta {
    width: 100%;
    background: linear-gradient(90deg, rgba(153, 234, 72, 0.15) 0%, rgba(153, 234, 72, 0.3) 100%);
    padding: 60px 24px;
    margin-top: 80px;
}

.cta-banner-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 32px;
}

.cta-banner-title {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    color: #FFFFFF;
    max-width: 800px;
}

.cta-banner-button {
    display: inline-block;
    padding: 16px 40px;
    background: #99EA48;
    border-radius: 40px;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 18px;
    color: #000000;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid #99EA48;
}

.cta-banner-button:hover {
    background: transparent;
    color: #99EA48;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(153, 234, 72, 0.2);
}

/* Footer */
.footer {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 48px 24px;
    margin-top: 80px;
}

.footer-container {
    display: flex;
    flex-direction: row;
    width: auto;
    height: 124.8px;
    border: 1.6px solid #282828;
    border-radius: 25.6px;
    overflow: hidden;
}

.footer-logo-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 48px 40px;
    border-right: 1.6px solid #282828;
    min-width: 200px;
}

.footer-logo .logo-text {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-size: 24px;
    font-weight: 600;
    color: #FFFFFF;
}

.footer-links-section {
    display: flex;
    align-items: center;
    padding: 33.6px 40px;
    border-right: 1.6px solid #282828;
    min-width: 250px;
}

.footer-links {
    display: flex;
    gap: 32px;
    width: 100%;
    justify-content: space-between;
}

.footer-link {
    font-family: 'Inter', sans-serif;
    font-size: 12.8px;
    line-height: 16px;
    letter-spacing: 0.16px;
    color: #FFFFFF;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #99EA48;
}

.footer-social-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 30px;
    border-right: 1.6px solid #282828;
    min-width: 200px;
}

.social-icons {
    display: flex;
    gap: 12.8px;
}

.social-icon {
    width: 28.8px;
    height: 28.8px;
    background: #282828;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.social-icon:hover {
    background: #99EA48;
}

.social-icon svg {
    transition: fill 0.3s ease;
}

.social-icon:hover svg path {
    fill: #000000;
}

.footer-cta-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 30px;
    border-right: 1.6px solid #282828;
    min-width: 150px;
}

.footer-cta-btn {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 20px;
    line-height: 27px;
    color: #99EA48;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.3s ease;
}

.footer-cta-btn:hover {
    color: #FFFFFF;
}

.footer-contact-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 30px;
    border-right: 1.6px solid #282828;
    min-width: 200px;
}

.footer-email {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 20px;
    line-height: 27px;
    text-align: center;
    letter-spacing: -0.48px;
    color: #FFFFFF;
}

.footer-copyright-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 30px;
    min-width: 180px;
}

.footer-copyright {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 20px;
    line-height: 27px;
    text-align: center;
    letter-spacing: -0.48px;
    color: #FFFFFF;
}

/* Tablet Responsive */
@media (max-width: 1024px) and (min-width: 769px) {
    .cta-banner-title {
        font-size: 40px;
    }
    
    .cta-banner-button {
        padding: 14px 36px;
        font-size: 16px;
    }
    .features-scroll-container {
        margin-top: 40px;
    }
    
    .features-list {
        gap: 32px;
        animation: scroll-left 25s linear infinite;
    }
    
    .feature-item {
        min-width: 180px;
        flex-shrink: 0;
    }
}

@media (max-width: 768px) {
    .full-width-cta {
        padding: 40px 20px;
    }
    
    .cta-banner-title {
        font-size: 32px;
    }
    
    .cta-banner-button {
        padding: 12px 30px;
        font-size: 16px;
        width: 80%;
    }
    
    .navbar {
        padding: 15px 20px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 15px;
    }
    
    .nav-links {
        gap: 15px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        order: 3;
        width: 100%;
        margin-top: 10px;
    }
    
    .title-line {
        font-size: 48px;
        line-height: 56px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .about-container {
        flex-direction: column;
        gap: 40px;
    }
    
    .stats-container {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 15px;
        width: 100%;
        justify-content: center;
    }
    
    .stat-card {
        min-width: 120px;
        flex: 1;
        max-width: 150px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .features-scroll-container {
         margin-top: 32px;
     }
     
     .features-list {
         gap: 24px;
         animation: scroll-left 20s linear infinite;
     }
     
     .feature-item {
         justify-content: center;
         min-width: 150px;
         flex-shrink: 0;
     }
     
     .feature-text {
         font-size: 18px;
         white-space: nowrap;
     }
    
    .services-grid {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .cta-card {
        grid-column: 1;
        grid-row: 3;
    }
    
    .service-number {
        width: 0px;
        height: 0px;
        font-size: 12px;
        top: 16px;
        right: 16px;
    }
    
    .service-features li {
        font-size: 12px;
        line-height: 16px;
    }
    
    .service-card {
        padding: 24px;
    }
    
    .phone-number {
        font-size: 16px;
        padding: 8px 16px;
    }
    
    .about-section,
    .features-section,
    .services-section,
    .testimonials-section {
        padding: 60px 20px;
    }
    
    .section-title {
        font-size: 32px;
        line-height: 40px;
    }
    
    .about-title {
        font-size: 28px;
        line-height: 36px;
    }
    
    .packages-section {
        padding: 60px 20px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .testimonial-card {
        padding: 20px;
    }
    
    .testimonial-text {
        font-size: 14px;
        line-height: 22px;
    }
    
    .section-badge {
        padding: 3px 10px 4px;
    }
    
    .section-badge span {
        font-size: 11px;
        line-height: 18px;
        white-space: nowrap;
    }
    
    .section-description {
        font-size: 14px;
        line-height: 20px;
        padding: 0 0;
    }
    
    .packages-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
        gap: 15px;
    }
    
    .package-card-wide {
        grid-column: 1 / -1;
        grid-row: auto;
        justify-self: center;
        max-width: 400px;
    }
    
    .package-card {
        min-height: 240px;
        padding: 20px;
    }
    
    .package-title {
        font-size: 18px;
        line-height: 22px;
    }
    
    .footer-container {
        flex-direction: column;
        width: 100%;
        max-width: 345px;
        height: auto;
    }
    
    .footer-logo-section,
    .footer-links-section,
    .footer-social-section,
    .footer-cta-section,
    .footer-contact-section {
        border-right: none;
        border-bottom: 1.6px solid #282828;
        min-width: auto;
        width: 100%;
        padding: 20px;
    }
    
    .footer-copyright-section {
        border-right: none;
        min-width: auto;
        width: 100%;
        padding: 20px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .social-icons {
        gap: 8px;
    }
    
    .earth-bg {
        background-size: cover;
        background-position: center center;
        background-attachment: scroll;
    }
}

@media (max-width: 480px) {
    .title-line {
        font-size: 32px;
        line-height: 40px;
    }
    
    .section-title {
        font-size: 22px;
        line-height: 30px;
    }
    
    .about-title {
        font-size: 20px;
        line-height: 28px;
    }
    
    .navbar {
        padding: 12px 15px;
    }
    
    .logo-unitrux {
        width: 120px;
        height: 40px;
    }
    
    .nav-links {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 12px;
        justify-content: center;
    }
    
    .nav-link {
        font-size: 14px;
    }
    
    .nav-contact {
        padding: 8px 20px;
        font-size: 14px;
        width: 50%;
        text-align: center;
    }
    
    /* Card và Grid Layout */
    .why-choose-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .why-choose-card {
        padding: 15px;
    }
    
    .feature-card {
        padding: 15px;
    }
    
    .features-grid {
        gap: 15px;
    }
    
    .feature-title {
        font-size: 18px;
        line-height: 24px;
    }
    
    .feature-description {
        font-size: 14px;
        line-height: 20px;
    }
    
    .features-scroll-container {
        margin-top: 24px;
    }
    
    .features-scroll-container::before,
    .features-scroll-container::after {
        width: 50px;
    }
    
    .features-list {
        gap: 20px;
        animation: scroll-left 18s linear infinite;
    }
    
    .feature-item {
        justify-content: center;
        min-width: 130px;
        flex-shrink: 0;
    }
    
    .feature-text {
        font-size: 16px;
        white-space: nowrap;
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .package-card-wide {
        grid-column: 1;
        justify-self: center;
        max-width: 400px;
    }
    
    .stat-card {
        padding: 15px;
        min-width: 100px;
    }
    
    .stat-number {
        font-size: 20px;
    }
    
    .stat-label {
        font-size: 14px;
    }
    
    /* Testimonials Section */
    .testimonials-section {
        padding: 40px 15px;
    }
    
    .testimonials-container {
        gap: 30px;
    }
    
    .testimonial-tabs {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
        margin-bottom: 20px;
    }
    
    .section-badge {
        padding: 3px 8px 3px;
    }
    
    .section-badge span {
        font-size: 10px;
        line-height: 16px;
        white-space: nowrap;
    }
    
    .section-description {
        font-size: 13px;
        line-height: 18px;
        padding: 0 5px;
    }
    
    .testimonial-card {
        padding: 15px;
    }
    
    .testimonial-text {
        font-size: 13px;
        line-height: 20px;
    }
    
    .author-info h4 {
        font-size: 16px;
        line-height: 20px;
    }
    
    .author-info p {
        font-size: 12px;
        line-height: 16px;
    }
}

img, video, iframe {
    max-width: 100%;
    height: auto;
    display: block; /* tránh inline gây khoảng trắng thừa */
  }
  

  html, body {
    overflow-x: hidden;
  }
  

/* Media Query cho màn hình siêu nhỏ (dưới 375px) */
@media (max-width: 375px) {
    .title-line {
        font-size: 28px;
        line-height: 36px;
    }
    
    .section-title {
        font-size: 20px;
        line-height: 28px;
    }
    
    .hero-description {
        font-size: 14px;
        line-height: 22px;
    }
    
    .navbar {
        padding: 10px 12px;
    }
    
    .logo-unitrux {
        width: 100px;
        height: 35px;
    }
    
    .nav-links {
        gap: 10px;
    }
    
    .nav-link {
        font-size: 13px;
    }
    
    .feature-card,
    .why-choose-card {
        padding: 12px;
    }
    
    .feature-title,
    .why-choose-title {
        font-size: 16px;
        line-height: 22px;
    }
    
    .feature-description,
    .why-choose-description {
        font-size: 13px;
        line-height: 18px;
    }
    
    .stat-card {
        padding: 12px;
        min-width: 90px;
    }
    
    .stat-number {
        font-size: 18px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 10px 16px;
        font-size: 14px;
    }
}

/* Floating Buttons */
.floating-buttons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.scroll-to-top-btn,
.theme-toggle-btn,
.language-toggle-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: var(--overlay-bg);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    border: 1px solid var(--border-secondary);
}

.scroll-to-top-btn.visible,
.theme-toggle-btn,
.language-toggle-btn {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.scroll-to-top-btn:hover,
.theme-toggle-btn:hover,
.language-toggle-btn:hover {
    background: var(--card-bg);
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
    border-color: var(--accent-color);
}

.language-toggle-btn .lang-text {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 12px;
    color: inherit;
}

/* Light mode specific floating button styles */
body:not(.dark-mode) .scroll-to-top-btn,
body:not(.dark-mode) .theme-toggle-btn,
body:not(.dark-mode) .language-toggle-btn {
    background: rgba(255, 255, 255, 0.95);
    color: #2A2A2A;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

body:not(.dark-mode) .scroll-to-top-btn:hover,
body:not(.dark-mode) .theme-toggle-btn:hover,
body:not(.dark-mode) .language-toggle-btn:hover {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
    /* Điều chỉnh packages-grid trên mobile */
    .packages-grid {
        grid-template-columns: 1fr;
        width: 100%;
        justify-items: center;
    }
    
    /* Điều chỉnh package-card trên mobile */
    .package-card {
        width: 100%;
        max-width: 100%;
        align-items: left;
        text-align: left;
    }
    
    /* Điều chỉnh package-card-wide trên mobile */
    .package-card-wide {
        width: 100%;
    }
    
    /* Căn lề trái cho feature-item */
    .feature-item {
        justify-content: flex-start;
        text-align: left;
        width: 100%;
    }
    
    /* Điều chỉnh package-features để căn lề trái */
    .package-features {
        align-items: flex-start;
        width: 100%;
    }
    
    .floating-buttons {
        bottom: 15px;
        right: 15px;
        gap: 10px;
    }
    
    .scroll-to-top-btn,
    .theme-toggle-btn,
    .language-toggle-btn {
        width: 40px;
        height: 40px;
    }
    
    /* Cải thiện touch target cho thiết bị di động */
    .nav-link,
    .nav-contact,
    .btn-primary,
    .btn-secondary,
    .feature-item,
    .scroll-to-top-btn,
    .theme-toggle-btn,
    .language-toggle-btn {
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }
    
    /* Thêm hiệu ứng khi chạm vào các phần tử tương tác */
    .nav-link:active,
    .nav-contact:active,
    .feature-item:active,
    .why-choose-card:active,
    .feature-card:active {
        opacity: 0.8;
    }
    .nav-contact:hover {
        background: var(--overlay-bg);
        border-color: var(--accent-color);
    }
}