/* ===== CSS RESET & MODERN FOUNDATION ===== */
:root {
    /* Color Palette - Unified Blue Theme */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --secondary: #1e40af;
    --secondary-dark: #1e3a8a;
    --accent: #3b82f6;
    --accent-dark: #2563eb;
    
    /* Neutral Colors - Enhanced Contrast */
    --dark: #1a202c;
    --dark-light: #2d3748;
    --gray: #4a5568;
    --gray-light: #718096;
    --light: #ffffff;
    --light-gray: #f7fafc;
    --light-blue: #ebf8ff;
    --text-high-contrast: #1a202c;
    --text-medium-contrast: #2d3748;
    --text-low-contrast: #4a5568;
    
    /* Gradients - Unified Blue Theme */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    --gradient-hero: linear-gradient(135deg, rgba(37, 99, 235, 0.95) 0%, rgba(30, 64, 175, 0.95) 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    --gradient-accent: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    
    /* Typography */
    --font-family: 'Inter', 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-base: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    font-weight: 400;
    overflow-x: hidden;
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.8s ease-out, visibility 0.8s ease-out, transform 0.8s ease-out;
    overflow: hidden;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    transform: scale(1.1);
}

.loading-content {
    text-align: center;
    color: var(--light);
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

.loading-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.logo-icon {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-base);
    animation: logoRotate 3s ease-in-out infinite;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.logo-icon i {
    font-size: var(--font-size-4xl);
    color: var(--light);
    animation: carBounce 2s ease-in-out infinite;
}

.logo-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo-main {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    letter-spacing: 2px;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    animation: textGlow 2s ease-in-out infinite alternate;
}

.logo-sub {
    font-size: var(--font-size-lg);
    font-weight: 500;
    opacity: 0.9;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    animation: textFade 3s ease-in-out infinite;
}

.loading-animation {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.loading-spinner {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto;
}

.spinner-outer {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid var(--light);
    border-radius: 50%;
    animation: spinOuter 2s linear infinite;
}

.spinner-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-bottom: 3px solid var(--accent);
    border-radius: 50%;
    animation: spinInner 1.5s linear infinite reverse;
}

.loading-dots {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.loading-dots span {
    width: 12px;
    height: 12px;
    background: var(--light);
    border-radius: 50%;
    animation: dotBounce 1.4s ease-in-out infinite;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.loading-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

.loading-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
    backdrop-filter: blur(5px);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--light), var(--accent), var(--light));
    border-radius: 2px;
    animation: progressLoad 3s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.loading-text {
    font-size: var(--font-size-base);
    font-weight: 500;
    opacity: 0.9;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    animation: textPulse 2s ease-in-out infinite;
}

.loading-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.floating-car {
    position: absolute;
    font-size: var(--font-size-2xl);
    color: rgba(255, 255, 255, 0.1);
    animation: floatCar 8s ease-in-out infinite;
}

.car-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 6s;
}

.car-2 {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
    animation-duration: 8s;
}

.car-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
    animation-duration: 7s;
}

/* Animations */
@keyframes logoRotate {
    0%, 100% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
}

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

@keyframes textGlow {
    0% { text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 20px rgba(255, 255, 255, 0.3); }
    100% { text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 30px rgba(255, 255, 255, 0.6); }
}

@keyframes textFade {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

@keyframes textPulse {
    0%, 100% { opacity: 0.7; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.02); }
}

@keyframes spinOuter {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes spinInner {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(-360deg); }
}

@keyframes dotBounce {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1.2);
        opacity: 1;
    }
}

@keyframes progressLoad {
    0% {
        transform: translateX(-100%);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(200px);
        opacity: 0;
    }
}

@keyframes floatCar {
    0%, 100% {
        transform: translateY(0px) translateX(0px) rotate(0deg);
        opacity: 0.05;
    }
    25% {
        transform: translateY(-20px) translateX(10px) rotate(5deg);
        opacity: 0.15;
    }
    50% {
        transform: translateY(-10px) translateX(-5px) rotate(-3deg);
        opacity: 0.1;
    }
    75% {
        transform: translateY(-30px) translateX(15px) rotate(8deg);
        opacity: 0.2;
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.02);
    transition: all var(--transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
    -webkit-backdrop-filter: blur(15px);
    transform: translateY(0);
    will-change: transform, background, backdrop-filter;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border-bottom-color: rgba(0, 0, 0, 0.05);
    -webkit-backdrop-filter: blur(20px);
}

.navbar.scrolled-more {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(25px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border-bottom-color: rgba(0, 0, 0, 0.06);
    -webkit-backdrop-filter: blur(25px);
}

/* Hiệu ứng hover cho navbar */
.navbar:hover {
    background: rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

/* Hiệu ứng mượt mà khi scroll */
.navbar.scrolled:hover {
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0;
    min-height: 72px;
    position: relative;
}

/* Clean Logo Design */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    text-decoration: none;
    color: var(--primary);
    transition: all var(--transition);
    padding: var(--spacing-sm);
    border-radius: var(--radius);
}

.logo:hover {
    transform: translateY(-1px);
}

.logo-icon-wrapper {
    width: 42px;
    height: 42px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.logo-icon-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.logo:hover .logo-icon-bg {
    transform: scale(1.05);
}

.logo-pulse {
    display: none;
}

.logo-icon-wrapper i {
    font-size: var(--font-size-lg);
    color: var(--light);
    position: relative;
    z-index: 2;
    transition: all var(--transition);
}

.logo:hover .logo-icon-wrapper i {
    transform: scale(1.1);
}

.logo-text-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1px;
    position: relative;
}

.logo-main {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    transition: all var(--transition);
}

.logo-sub {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--gray);
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition);
}

.logo:hover .logo-sub {
    color: var(--primary);
}

.logo-underline {
    display: none;
}

/* Clean Navigation Links */
.nav-links-container {
    position: relative;
}

@media (max-width: 768px) {
    .mobile-nav-content { 
      overflow: hidden; /* tránh double scroll */
    }
  
    /* Danh sách link cuộn trong khoảng an toàn của màn hình */
    .mobile-nav-links {
      max-height: calc(100vh - 220px); /* trừ phần header + CTA, chỉnh con số tùy bố cục của bạn */
      overflow-y: auto;                 /* cuộn theo chiều dọc */
      -webkit-overflow-scrolling: touch;/* cuộn mượt trên iOS */
    }
  
    /* Ẩn thanh cuộn */
    .mobile-nav-links::-webkit-scrollbar { display: none; }
    .mobile-nav-links { 
      scrollbar-width: none;      /* Firefox */
      -ms-overflow-style: none;   /* IE/Edge cũ */
    }
  }
  
  

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-base);
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--text-medium-contrast);
    font-weight: 500;
    font-size: var(--font-size-sm);
    position: relative;
    transition: all var(--transition);
    padding: var(--spacing-sm) var(--spacing-base);
    border-radius: var(--radius);
    white-space: nowrap;
    min-height: 40px;
}

.nav-link-bg {
    display: none;
}

.nav-icon {
    font-size: var(--font-size-sm);
    opacity: 0.7;
    transition: all var(--transition);
}

.nav-text {
    transition: all var(--transition);
}

.nav-indicator {
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
    transition: transform var(--transition);
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

.nav-link:hover .nav-icon {
    opacity: 1;
    color: var(--primary);
}

.nav-link:hover .nav-indicator {
    transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.08);
    font-weight: 600;
}

.nav-link.active .nav-icon {
    opacity: 1;
    color: var(--primary);
}

.nav-link.active .nav-indicator {
    transform: translateX(-50%) scaleX(1);
}

/* Clean CTA Button */
.nav-cta {
    display: flex;
    align-items: center;
}

.nav-cta-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    background: var(--gradient-primary);
    color: var(--light);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--transition);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    min-height: 40px;
    position: relative;
    overflow: hidden;
    animation: ctaPulse 2s ease-in-out infinite;
}

/* Hiệu ứng pulse cho CTA button */
@keyframes ctaPulse {
    0%, 100% {
        box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25), 0 0 0 0 rgba(37, 99, 235, 0.4);
    }
    50% {
        box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25), 0 0 0 8px rgba(37, 99, 235, 0);
    }
}

/* Hiệu ứng shine effect */
.nav-cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.nav-cta-btn:hover::before {
    left: 100%;
}

.cta-bg {
    display: none;
}

.cta-icon-wrapper {
    display: none;
}

.cta-text-wrapper {
    display: contents;
}

.cta-main {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--light);
    line-height: 1;
}

.cta-sub {
    display: none;
}

.cta-shine {
    display: none;
}

.nav-cta-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4), 0 0 0 0 rgba(37, 99, 235, 0.6);
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
    animation: ctaHoverPulse 0.6s ease-in-out;
}

@keyframes ctaHoverPulse {
    0% {
        transform: translateY(-2px) scale(1.02);
    }
    50% {
        transform: translateY(-2px) scale(1.05);
    }
    100% {
        transform: translateY(-2px) scale(1.02);
    }
}

.nav-cta-btn i {
    font-size: var(--font-size-sm);
    transition: all var(--transition);
    animation: iconBounce 2s ease-in-out infinite;
}

@keyframes iconBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-2px);
    }
}

.nav-cta-btn:hover i {
    animation: iconShake 0.6s ease-in-out;
}

@keyframes iconShake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-2px);
    }
    75% {
        transform: translateX(2px);
    }
}

/* Clean Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    transition: all var(--transition);
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
}

.mobile-menu-btn:hover {
    background: rgba(37, 99, 235, 0.05);
}

.hamburger {
    width: 24px;
    height: 18px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.line {
    width: 100%;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
    transition: all var(--transition);
    transform-origin: center;
}

.line1 {
    transform-origin: top left;
}

.line3 {
    transform-origin: bottom left;
}

.mobile-menu-btn.active {
    background: rgba(37, 99, 235, 0.1);
}

.mobile-menu-btn.active .line {
    background: var(--primary);
}

.mobile-menu-btn.active .line1 {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn.active .line2 {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-btn.active .line3 {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Clean Mobile Navigation Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    -webkit-backdrop-filter: blur(16px);
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: var(--spacing-3xl) var(--spacing-xl);
}

.mobile-nav-header {
    margin-bottom: var(--spacing-3xl);
    padding-top: 60px;
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    color: var(--primary);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.mobile-logo i {
    font-size: var(--font-size-xl);
    background: var(--gradient-primary);
    color: var(--light);
    width: 42px;
    height: 42px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-nav-links {
    list-style: none;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    color: var(--text-medium-contrast);
    text-decoration: none;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    font-weight: 500;
    background: transparent;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition);
    transform: translateX(-100px);
    opacity: 0;
    animation: slideInLeft 0.6s ease-out forwards;
}

.mobile-nav-link:nth-child(1) { animation-delay: 0.1s; }
.mobile-nav-link:nth-child(2) { animation-delay: 0.15s; }
.mobile-nav-link:nth-child(3) { animation-delay: 0.2s; }
.mobile-nav-link:nth-child(4) { animation-delay: 0.25s; }
.mobile-nav-link:nth-child(5) { animation-delay: 0.3s; }
.mobile-nav-link:nth-child(6) { animation-delay: 0.35s; }

@keyframes slideInLeft {
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.15);
    color: var(--primary);
    transform: translateX(5px);
}

.mobile-nav-link i {
    font-size: var(--font-size-xl);
    width: 30px;
    text-align: center;
}

.mobile-nav-cta {
    margin-top: var(--spacing-xl);
    transform: translateY(100px);
    opacity: 0;
    animation: slideInUp 0.6s ease-out 0.4s forwards;
}

@keyframes slideInUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.mobile-cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    background: var(--gradient-primary);
    color: var(--light);
    text-decoration: none;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    animation: mobileCtaPulse 2.5s ease-in-out infinite;
}

/* Hiệu ứng pulse cho mobile CTA button */
@keyframes mobileCtaPulse {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3), 0 0 0 0 rgba(37, 99, 235, 0.5);
    }
    50% {
        box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3), 0 0 0 12px rgba(37, 99, 235, 0);
    }
}

/* Hiệu ứng shine effect cho mobile */
.mobile-cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.8s ease;
}

.mobile-cta-btn:hover::before {
    left: 100%;
}

.mobile-cta-btn:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.5), 0 0 0 0 rgba(37, 99, 235, 0.7);
    animation: mobileCtaHoverPulse 0.8s ease-in-out;
}

@keyframes mobileCtaHoverPulse {
    0% {
        transform: translateY(-3px) scale(1.03);
    }
    50% {
        transform: translateY(-3px) scale(1.08);
    }
    100% {
        transform: translateY(-3px) scale(1.03);
    }
}

.mobile-cta-btn i {
    font-size: var(--font-size-base);
    transition: all var(--transition);
    animation: mobileIconBounce 2.5s ease-in-out infinite;
}

@keyframes mobileIconBounce {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-3px) scale(1.1);
    }
}

.mobile-cta-btn:hover i {
    animation: mobileIconShake 0.8s ease-in-out;
}

@keyframes mobileIconShake {
    0%, 100% {
        transform: translateX(0) scale(1.1);
    }
    25% {
        transform: translateX(-3px) scale(1.1);
    }
    75% {
        transform: translateX(3px) scale(1.1);
    }
}

/* Hiệu ứng click cho cả 2 nút */
.nav-cta-btn:active,
.mobile-cta-btn:active {
    transform: translateY(0) scale(0.95);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
    transition: all 0.1s ease;
}

.nav-cta-btn:active i,
.mobile-cta-btn:active i {
    transform: scale(0.9);
    transition: all 0.1s ease;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    margin-top: 70px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 2px 2px, rgba(255,255,255,0.15) 1px, transparent 0);
    background-size: 40px 40px;
    animation: float 20s ease-in-out infinite;
}

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

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    min-height: calc(100vh - 140px);
}

.hero-text {
    color: var(--light);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.highlight {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--accent);
    margin-top: var(--spacing-base);
    border-radius: 2px;
}

.hero-description {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.stat-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition);
    flex: 1;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--light);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--light);
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    opacity: 0.95;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-base) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
}

.cta-btn.primary {
    background: var(--accent);
    color: var(--light);
    box-shadow: var(--shadow-lg);
}

.cta-btn.primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.cta-btn.secondary {
    background: transparent;
    color: var(--light);
    border-color: rgba(255, 255, 255, 0.5);
}

.cta-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--light);
    transform: translateY(-2px);
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* Hero Avatar Styles */
.hero-avatar {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.instructor-avatar {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: avatarFloat 3s ease-in-out infinite;
    transition: all var(--transition);
}

.instructor-avatar:hover {
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.avatar-badge {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 2px solid rgba(37, 99, 235, 0.2);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.avatar-badge i {
    color: var(--primary);
    font-size: var(--font-size-base);
}

.avatar-badge span {
    color: var(--primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

@keyframes avatarFloat {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
    }
    50% { 
        transform: translateY(-15px) rotate(2deg); 
    }
}

.hero-car {
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.2);
    animation: bounce 3s ease-in-out infinite;
}

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

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.float-item {
    position: absolute;
    color: rgba(255, 255, 255, 0.3);
    font-size: 2rem;
    animation: float-around 8s ease-in-out infinite;
    animation-delay: var(--delay);
}

.float-item:nth-child(1) {
    top: 20%;
    left: 10%;
}

.float-item:nth-child(2) {
    top: 60%;
    right: 15%;
}

.float-item:nth-child(3) {
    bottom: 20%;
    left: 20%;
}

@keyframes float-around {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(10px, -10px) rotate(90deg); }
    50% { transform: translate(-5px, -20px) rotate(180deg); }
    75% { transform: translate(-15px, -5px) rotate(270deg); }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    color: var(--light);
}

.scroll-arrow {
    animation: bounce-arrow 2s infinite;
    font-size: var(--font-size-xl);
    opacity: 0.8;
}

@keyframes bounce-arrow {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* ===== SECTION STYLES ===== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--light);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-base);
}

.section-header h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-high-contrast);
    margin-bottom: var(--spacing-base);
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--text-medium-contrast);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 500;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--light-gray);
}

/* Instructor Introduction Styles */
.instructor-intro {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(37, 99, 235, 0.08);
}

.instructor-avatar-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.instructor-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
    transition: all var(--transition);
    flex-shrink: 0;
}

.instructor-photo:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(37, 99, 235, 0.4);
}

.instructor-info h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.instructor-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.instructor-experience {
    font-size: var(--font-size-sm);
    color: var(--gray);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.instructor-experience::before {
    content: '⭐';
    font-size: var(--font-size-base);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

/* Features grid section */
.about-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
}

.about-feature {
    display: flex;
    gap: var(--spacing-lg);
}

.about-feature i {
    color: var(--secondary);
    font-size: var(--font-size-xl);
    flex-shrink: 0;
    margin-top: 4px;
}

.about-feature h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
}

.about-feature p {
    color: var(--gray);
    line-height: 1.6;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-card {
    background: var(--light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--light);
    font-size: var(--font-size-2xl);
}

.about-card h3 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.about-card p {
    color: var(--gray);
    font-weight: 500;
}

/* ===== SERVICES SECTION (LICENSE CARDS) ===== */
.license-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    align-items: stretch;
}

.license-card {
    background: var(--light);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(37, 99, 235, 0.08);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.license-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.license-card:hover::before {
    transform: scaleX(1);
}

.license-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(37, 99, 235, 0.15);
}

.license-card.featured {
    background: var(--gradient-primary);
    color: var(--light);
    transform: scale(1.02);
    border-color: transparent;
}

.license-card.featured::before {
    background: var(--accent);
    transform: scaleX(1);
}

.license-card.featured:hover {
    transform: scale(1.02) translateY(-8px);
}

/* License Header */
.license-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-base);
    flex-shrink: 0;
}

.license-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    color: var(--light);
    flex-shrink: 0;
    box-shadow: var(--shadow);
}

.license-icon.a1 {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
}

.license-icon.a {
    background: linear-gradient(135deg, #1e40af, #1e3a8a);
}

.license-icon.b {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
}

.license-icon.c1 {
    background: linear-gradient(135deg, #1e3a8a, #1e293b);
}

.license-title {
    flex: 1;
    margin-left: var(--spacing-base);
}

.license-title h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-high-contrast);
    margin-bottom: 4px;
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.license-card.featured .license-title h3 {
    color: var(--light);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.license-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-medium-contrast);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.license-card.featured .license-subtitle {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.license-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    align-self: flex-start;
}

.license-badge.popular {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    color: var(--light);
}

.license-badge.advanced {
    background: linear-gradient(135deg, #1e40af, #1e3a8a);
    color: var(--light);
}

.license-badge.featured {
    background: var(--gradient-accent);
    color: var(--light);
}

.license-badge.professional {
    background: linear-gradient(135deg, #1e3a8a, #1e293b);
    color: var(--light);
}

.license-card.featured .license-badge {
    background: var(--light);
    color: var(--primary);
}

/* License Description */
.license-description {
    margin-bottom: var(--spacing-xl);
    flex: 1;
}

.license-description h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-high-contrast);
    margin-bottom: var(--spacing-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.license-card.featured .license-description h4 {
    color: var(--light);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.license-description h4::before {
    content: '';
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.license-card.featured .license-description h4::before {
    background: var(--light);
}

.vehicle-type {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-base);
    margin-bottom: var(--spacing-base);
    padding: var(--spacing-base);
    background: var(--light-gray);
    border-radius: var(--radius);
    border-left: 3px solid var(--primary);
}

.license-card.featured .vehicle-type {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: var(--light);
}

.vehicle-type i {
    color: var(--primary);
    font-size: var(--font-size-base);
    margin-top: 2px;
    flex-shrink: 0;
}

.license-card.featured .vehicle-type i {
    color: var(--light);
}

.vehicle-type span {
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--text-medium-contrast);
    font-weight: 500;
}

.license-card.featured .vehicle-type span {
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* License Details */
.license-details {
    margin-bottom: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(37, 99, 235, 0.1);
    flex-shrink: 0;
}

.license-card.featured .license-details {
    border-top-color: rgba(255, 255, 255, 0.2);
}

.detail-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.detail-row:last-child {
    margin-bottom: 0;
}

.detail-row i {
    color: var(--primary);
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.license-card.featured .detail-row i {
    color: var(--light);
}

.detail-row span {
    color: var(--gray);
}

.license-card.featured .detail-row span {
    color: rgba(255, 255, 255, 0.9);
}

/* License Button */
.license-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--gradient-primary);
    color: var(--light);
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 500;
    font-size: var(--font-size-lg);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
    flex-shrink: 0;
    margin-top: auto;
}

.license-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: var(--transition-slow);
}

.license-btn:hover::before {
    left: 100%;
}

.license-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.4);
    border-color: rgba(255, 255, 255, 0.3);
}

.license-btn:active {
    transform: translateY(-2px) scale(1.01);
    transition: var(--transition-fast);
}

.license-card.featured .license-btn {
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    color: var(--primary);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.license-card.featured .license-btn:hover {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    color: var(--primary-dark);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    border-color: var(--primary);
}

/* License Features for B and C1 */
.license-features {
    margin-bottom: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(37, 99, 235, 0.1);
    flex-shrink: 0;
}

.license-card.featured .license-features {
    border-top-color: rgba(255, 255, 255, 0.2);
}

.feature-highlight h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.license-card.featured .feature-highlight h4 {
    color: var(--accent);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-base);
    padding: var(--spacing-sm);
    background: var(--light-blue);
    border-radius: var(--radius);
    border-left: 3px solid var(--secondary);
    transition: all var(--transition);
}

.feature-item:hover {
    transform: translateX(3px);
    box-shadow: var(--shadow-sm);
}

.license-card.featured .feature-item {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: var(--accent);
}

.feature-item i {
    color: var(--secondary);
    font-size: var(--font-size-base);
    margin-top: 2px;
    flex-shrink: 0;
    width: 18px;
    text-align: center;
}

.license-card.featured .feature-item i {
    color: var(--accent);
}

.feature-item span {
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--gray);
    font-weight: 500;
}

.license-card.featured .feature-item span {
    color: rgba(255, 255, 255, 0.9);
}

/* ===== FEATURES SECTION (ADVANTAGES) ===== */
.features {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="%23e2e8f0" opacity="0.3"/></svg>') repeat;
    background-size: 50px 50px;
    opacity: 0.5;
}

.advantages-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.advantage-card {
    background: var(--light);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(37, 99, 235, 0.08);
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(37, 99, 235, 0.15);
}

.advantage-card.featured {
    background: var(--gradient-primary);
    color: var(--light);
    transform: scale(1.02);
    border-color: transparent;
}

.advantage-card.featured::before {
    background: var(--accent);
    transform: scaleX(1);
}

.advantage-card.featured:hover {
    transform: scale(1.02) translateY(-8px);
}

.advantage-number {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--primary);
}

.advantage-card.featured .advantage-number {
    background: rgba(255, 255, 255, 0.2);
    color: var(--light);
}

.advantage-content {
    padding-right: 60px;
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--primary);
    font-size: var(--font-size-2xl);
}

.advantage-card.featured .advantage-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--light);
}

.advantage-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-high-contrast);
    margin-bottom: var(--spacing-base);
    line-height: 1.3;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.advantage-card.featured .advantage-content h3 {
    color: var(--light);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.advantage-content p {
    color: var(--text-medium-contrast);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
}

.advantage-card.featured .advantage-content p {
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.advantage-highlight {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    padding: var(--spacing-xs) var(--spacing-base);
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.advantage-card.featured .advantage-highlight {
    background: rgba(255, 255, 255, 0.2);
    color: var(--light);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

@media (min-width: 1200px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: repeat(2, auto);
    }
}

@media (min-width: 768px) and (max-width: 1199px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.testimonial-item {
    background: var(--light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    position: relative;
}

.testimonial-item::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: var(--spacing-xl);
    font-size: 4rem;
    color: var(--primary);
    font-family: serif;
    line-height: 1;
}

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

.stars {
    display: flex;
    gap: 4px;
    margin-bottom: var(--spacing-base);
}

.stars i {
    color: var(--accent);
    font-size: var(--font-size-base);
}

.testimonial-content p {
    color: var(--text-medium-contrast);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    font-size: var(--font-size-lg);
}

.author-info h4 {
    font-weight: 600;
    color: var(--text-high-contrast);
    margin-bottom: 2px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.author-info span {
    font-size: var(--font-size-sm);
    color: var(--text-low-contrast);
    font-weight: 500;
}

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

.contact-main-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.contact-card-main {
    background: var(--light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(37, 99, 235, 0.08);
}

.contact-card-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.contact-card-main:hover::before {
    transform: scaleX(1);
}

.contact-card-main:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(37, 99, 235, 0.15);
}

.contact-card-main.full-width {
    grid-column: 1 / -1;
}

.contact-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    margin-bottom: var(--spacing-lg);
}

.contact-header i {
    color: var(--primary);
    font-size: var(--font-size-2xl);
    width: 50px;
    height: 50px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-high-contrast);
    margin: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.contact-card-main p {
    color: var(--text-medium-contrast);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
    font-size: var(--font-size-base);
    font-weight: 500;
}

.contact-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-base);
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.contact-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-slow);
}

.contact-btn:hover::before {
    left: 100%;
}

.contact-btn.primary {
    background: var(--gradient-primary);
    color: var(--light);
    box-shadow: var(--shadow);
}

.contact-btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.contact-btn.zalo {
    background: linear-gradient(135deg, #0068ff, #0050c7);
    color: var(--light);
    box-shadow: var(--shadow);
}

.contact-btn.zalo:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.contact-btn i {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.btn-content {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.phone-number {
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.2;
}

.btn-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    font-weight: 500;
}

.info-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-base);
    padding: var(--spacing-base);
    background: rgba(37, 99, 235, 0.05);
    border-radius: var(--radius);
    border-left: 3px solid var(--primary);
}

.info-item i {
    color: var(--primary);
    font-size: var(--font-size-lg);
    margin-top: 2px;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.info-item div {
    flex: 1;
}

.info-item strong {
    display: block;
    color: var(--dark);
    font-weight: 600;
    margin-bottom: 2px;
    font-size: var(--font-size-base);
}

.info-item span {
    color: var(--gray);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* Social Buttons in Contact */
.social-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-base);
}

.social-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.social-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-slow);
}

.social-btn:hover::before {
    left: 100%;
}

.social-btn.tiktok {
    background: linear-gradient(135deg, #000000, #2c2c2c);
    color: var(--light);
    box-shadow: var(--shadow);
}

.social-btn.tiktok:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.social-btn.facebook {
    background: linear-gradient(135deg, #1877f2, #0d5cb5);
    color: var(--light);
    box-shadow: var(--shadow);
}

.social-btn.facebook:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.social-btn i {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.social-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.2;
}

.social-handle {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    font-weight: 500;
}

/* Info Showcase */
.info-showcase {
    background: var(--light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(37, 99, 235, 0.08);
}

.info-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.info-showcase:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(37, 99, 235, 0.15);
}

.showcase-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.showcase-header i {
    color: var(--primary);
    font-size: var(--font-size-2xl);
    width: 50px;
    height: 50px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.showcase-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--dark);
    margin: 0;
    flex: 1;
}

.showcase-badge {
    background: var(--gradient-primary);
    color: var(--light);
    padding: var(--spacing-xs) var(--spacing-base);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.info-card {
    background: rgba(37, 99, 235, 0.03);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
    transition: all var(--transition);
}

.info-card:hover {
    background: rgba(37, 99, 235, 0.08);
    transform: translateX(3px);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-base);
    color: var(--light);
    font-size: var(--font-size-lg);
}

.info-content h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-high-contrast);
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.info-content p {
    color: var(--text-medium-contrast);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    font-weight: 500;
}

.info-highlight {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Social Media Row */
.social-media-row {
    margin: var(--spacing-3xl) 0;
    background: var(--light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(37, 99, 235, 0.08);
}

.social-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.social-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-high-contrast);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.social-header p {
    color: var(--text-medium-contrast);
    font-size: var(--font-size-base);
    font-weight: 500;
}

.social-buttons-horizontal {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.social-btn-horizontal {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.social-btn-horizontal::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-slow);
}

.social-btn-horizontal:hover::before {
    left: 100%;
}

.social-btn-horizontal.tiktok {
    background: linear-gradient(135deg, #000000, #1a1a1a);
    color: var(--light);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.social-btn-horizontal.tiktok:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6);
    border-color: rgba(255, 255, 255, 0.2);
}

.social-btn-horizontal.facebook {
    background: linear-gradient(135deg, #1877f2, #0a4d99);
    color: var(--light);
    box-shadow: 0 12px 35px rgba(24, 119, 242, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.social-btn-horizontal.facebook:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 45px rgba(24, 119, 242, 0.6);
    border-color: rgba(255, 255, 255, 0.2);
}

.social-icon-large {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-4xl);
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    flex-shrink: 0;
    color: var(--light);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
    transition: all var(--transition);
}

.social-content {
    flex: 1;
}

.social-content h4 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--light);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.social-content p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.social-handle {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 8px;
    border-radius: 12px;
    display: inline-block;
    backdrop-filter: blur(5px);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.social-arrow {
    font-size: var(--font-size-xl);
    transition: var(--transition);
}

.social-btn-horizontal:hover .social-arrow {
    transform: translateX(5px);
}

.social-btn-horizontal:hover .social-icon-large {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.35);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Info Showcase Horizontal */
.info-showcase-horizontal {
    background: var(--light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(37, 99, 235, 0.08);
    margin-top: var(--spacing-3xl);
}

.info-showcase-horizontal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.showcase-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    gap: var(--spacing-base);
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.header-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
}

.header-content h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-high-contrast);
    margin: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.header-content p {
    color: var(--text-medium-contrast);
    margin: 0;
    font-size: var(--font-size-base);
    font-weight: 500;
}

.info-cards-horizontal {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.info-card-horizontal {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-base);
    padding: var(--spacing-lg);
    background: rgba(37, 99, 235, 0.03);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
    transition: all var(--transition);
}

.info-card-horizontal:hover {
    background: rgba(37, 99, 235, 0.08);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.info-icon-small {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    font-size: var(--font-size-base);
    flex-shrink: 0;
}

/* ===== SOCIAL SECTION ===== */
.social-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.social-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: var(--light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    text-decoration: none;
    color: var(--dark);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.social-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: var(--transition-slow);
}

.social-item:hover::before {
    left: 100%;
}

.social-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.social-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    color: var(--light);
    flex-shrink: 0;
}

.social-item.tiktok .social-icon {
    background: #000;
}

.social-item.facebook .social-icon {
    background: #1877f2;
}

.social-content {
    flex: 1;
}

.social-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.social-content p {
    color: var(--gray);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.social-handle {
    color: var(--primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.social-arrow {
    color: var(--gray);
    font-size: var(--font-size-lg);
    transition: var(--transition);
}

.social-item:hover .social-arrow {
    transform: translateX(5px);
    color: var(--primary);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    color: var(--light);
    padding: var(--spacing-2xl) 0 var(--spacing-base);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: var(--spacing-base);
}

.footer-brand .footer-logo i {
    font-size: var(--font-size-2xl);
}

.footer-brand p {
    color: var(--gray-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 36px;
    height: 36px;
    background: var(--dark-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    transition: var(--transition);
    font-size: var(--font-size-sm);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-section h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-base);
    color: var(--light);
}

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

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

.footer-section ul li a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
    font-size: var(--font-size-sm);
}

.footer-section ul li a:hover {
    color: var(--primary-light);
}

.footer-contact .contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--gray-light);
    font-size: var(--font-size-sm);
}

.footer-contact .contact-item i {
    color: var(--primary-light);
    margin-top: 2px;
    width: 14px;
}

.footer-contact .contact-item div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-contact .contact-item a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.footer-contact .contact-item a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid var(--dark-light);
    padding-top: var(--spacing-base);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-light);
    font-size: var(--font-size-xs);
    margin: 0;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--light);
    border: none;
    border-radius: 50%;
    font-size: var(--font-size-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

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

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-car {
        font-size: 6rem;
    }
    
    .instructor-avatar {
        width: 220px;
        height: 220px;
    }
    
    .instructor-avatar-section {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .instructor-photo {
        width: 180px;
        height: 180px;
    }
    
    .about-features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-main-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .social-buttons-horizontal {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .info-cards-horizontal {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-base);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
    
    .license-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-links-container {
        display: none;
    }
    
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .navbar {
        min-height: 64px;
    }
    
    .nav-content {
        min-height: 64px;
        padding: 0;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-3xl) 0;
    }
    
    .hero-content {
        min-height: auto;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        display: grid;
    }
    
    .stat-item {
        padding: var(--spacing-base);
    }
    
    .stat-number {
        font-size: var(--font-size-3xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-btn {
        width: 100%;
        justify-content: center;
    }
    
    .section-header h2 {
        font-size: var(--font-size-3xl);
    }
    
    .license-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .license-card {
        padding: var(--spacing-xl);
        height: auto;
    }
    
    .advantages-showcase {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .advantage-card {
        padding: var(--spacing-xl);
    }
    
    .advantage-content {
        padding-right: 50px;
    }
    
    .advantage-number {
        width: 35px;
        height: 35px;
        font-size: var(--font-size-base);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: left;
    }
    
    .footer-brand,
    .footer-section {
        text-align: left;
    }
    
    .footer-brand .footer-logo {
        justify-content: flex-start;
    }
    
    .footer-social {
        justify-content: flex-start;
    }
    
    .contact-main-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .social-buttons-horizontal {
        grid-template-columns: 1fr;
        gap: var(--spacing-base);
    }
    
    .social-btn-horizontal {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-base);
        padding: var(--spacing-lg);
    }
    
    .social-icon-large {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-3xl);
    }
    
    .info-cards-horizontal {
        grid-template-columns: 1fr;
        gap: var(--spacing-base);
    }
    
    .info-card-horizontal {
        padding: var(--spacing-base);
    }
    
    .showcase-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: var(--spacing-base);
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-base);
    }
    
    .social-media-row {
        margin: var(--spacing-xl) 0;
        padding: var(--spacing-lg);
    }
    
    .social-header h3 {
        font-size: var(--font-size-xl);
    }
    
    .contact-card-main {
        padding: var(--spacing-lg);
    }
    
    .contact-header i {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-xl);
    }
    
    .contact-header h3 {
        font-size: var(--font-size-lg);
    }
    
    .contact-btn {
        padding: var(--spacing-base);
    }
    
    .phone-number {
        font-size: var(--font-size-base);
    }
    
    .info-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-base);
    }
    
    .info-card {
        padding: var(--spacing-base);
    }
    
    .social-buttons {
        gap: var(--spacing-sm);
    }
    
    .social-btn {
        padding: var(--spacing-base);
    }
    
    .showcase-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .advantage-content {
        padding-right: 0;
    }
    
    .advantage-number {
        position: static;
        margin-bottom: var(--spacing-base);
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-base);
    }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-car {
        font-size: 4rem;
    }
    
    .instructor-avatar {
        width: 180px;
        height: 180px;
    }
    
    .avatar-badge {
        position: relative;
        bottom: auto;
        left: auto;
        transform: none;
        margin-top: var(--spacing-base);
    }
    
    .instructor-photo {
        width: 150px;
        height: 150px;
    }
    
    .instructor-intro {
        padding: var(--spacing-lg);
    }
    
    .license-card,
    .feature-item,
    .testimonial-item,
    .contact-card,
    .about-card {
        padding: var(--spacing-lg);
        height: auto;
    }
    
    .license-grid {
        gap: var(--spacing-lg);
    }
    
    .license-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .license-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
    }
    
    .license-title {
        margin-left: 0;
    }
    
    .license-badge {
        align-self: flex-end;
    }
    
    .back-to-top {
        bottom: var(--spacing-base);
        right: var(--spacing-base);
        width: 45px;
        height: 45px;
    }
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* AOS Animation Overrides */
[data-aos="fade-up"] {
    transform: translateY(30px);
    opacity: 0;
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
    opacity: 1;
}

[data-aos="zoom-in"] {
    transform: scale(0.8);
    opacity: 0;
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
    opacity: 1;
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-base); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-base); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-base); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* ===== PRINT STYLES ===== */
@media print {
    .navbar,
    .back-to-top,
    .loading-screen {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero {
        min-height: auto;
        page-break-inside: avoid;
    }
    
    section {
        page-break-inside: avoid;
        padding: 20pt 0;
    }
}