/* ===================================
   Design Tokens
   =================================== */
:root {
    /* Colors - Dark Mode Theme */
    --bg-primary: #0c1929;
    --bg-secondary: #162033;
    --bg-surface: #1e293b;
    --accent: #0ea5e9;
    --accent-glow: #38bdf8;
    --accent-dark: #0284c7;
    --text-primary: #e2e8f0;
    --text-muted: #94a3b8;
    --border: #334155;

    /* Glass Effect */
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-display: 'Lexend', sans-serif;
    --font-body: 'Be Vietnam Pro', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Sizing */
    --container-width: 1280px;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-lg: 24px;

    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 24px rgba(14, 165, 233, 0.3);
}

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

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ===================================
   Utilities
   =================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    transition: var(--transition-base);
}

.glass-card:hover {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-glow) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-fast);
}

.logo:hover .logo-img {
    filter: brightness(1.1);
}

.footer-brand .logo-img {
    height: 48px;
}

.logo-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 0 8px var(--accent));
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

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

/* Slideshow Container */
.hero-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 2s ease-in-out, transform 20s ease-out;
    transform: scale(1);
}

/* Active slide fades in and zooms slowly (Ken Burns effect) */
.hero-slide.active {
    opacity: 1;
    animation: kenBurns 20s ease-out forwards;
}

@keyframes kenBurns {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.1);
    }
}

/* Dark overlay for text readability - hình rõ hơn */
.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(12, 25, 41, 0.4) 0%,
        rgba(12, 25, 41, 0.6) 40%,
        rgba(12, 25, 41, 0.85) 100%
    );
}

/* Hero Content */
.hero-container {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-md);
}

.hero-content {
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-glow);
    margin-bottom: var(--space-lg);
}

.badge i {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

/* Typing Effect Styles */
.typing-wrapper {
    display: inline-flex;
    align-items: center;
    min-height: 1.3em;
}

.typing-text {
    font-weight: 800;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    display: inline-block;
    min-width: 1ch;
}

.typing-cursor {
    font-weight: 300;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--accent-glow);
    animation: blink 1s infinite;
    margin-left: 2px;
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

.hero-tagline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-2xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--accent-glow);
    line-height: 1;
    margin-bottom: var(--space-xs);
    font-variant-numeric: tabular-nums;
    min-width: 80px;
    display: inline-block;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-muted);
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    width: 24px;
    height: 24px;
}

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

/* ===================================
   Buttons
   =================================== */
.btn-primary,
.btn-secondary,
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.4);
}

.btn-primary:hover {
    background: var(--accent-glow);
    box-shadow: 0 0 30px rgba(14, 165, 233, 0.6);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-surface);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent-glow);
    transform: translateY(-2px);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

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

.btn-primary i,
.btn-secondary i,
.btn-outline i {
    width: 20px;
    height: 20px;
}

/* ===================================
   Sections
   =================================== */
.section {
    padding: var(--space-3xl) 0;
}

.section:nth-child(even) {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
}

.section-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-glow);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.8;
}

/* ===================================
   Services Section
   =================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.service-card {
    position: relative;
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    overflow: hidden;
    min-height: 380px;
}

/* Background Image - rõ ràng, sinh động */
.service-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    transition: transform 0.6s ease, opacity 0.6s ease;
    opacity: 0.75;
}

.service-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(12, 25, 41, 0.3) 0%,
        rgba(12, 25, 41, 0.65) 50%,
        rgba(12, 25, 41, 0.9) 100%
    );
    z-index: 1;
}

.service-card:hover .service-bg {
    transform: scale(1.1);
    opacity: 0.9;
}

/* Content wrapper - nổi lên trên background */
.service-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    flex-grow: 1;
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-glow));
    border-radius: var(--border-radius-sm);
    color: white;
    box-shadow: var(--shadow-glow);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 0 30px rgba(14, 165, 233, 0.5);
}

.service-icon i {
    width: 32px;
    height: 32px;
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    transition: color var(--transition-fast);
}

.service-card:hover .service-title {
    color: var(--accent-glow);
}

.service-description {
    color: var(--text-muted);
    line-height: 1.7;
    flex-grow: 1;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--accent-glow);
    font-weight: 600;
    font-size: 0.95rem;
    transition: gap var(--transition-fast);
}

.service-link:hover {
    gap: var(--space-sm);
}

.service-link i {
    width: 16px;
    height: 16px;
}

/* ===================================
   Why Us Section
   =================================== */
.why-us-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.image-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
}

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

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), rgba(56, 189, 248, 0.1));
}

.why-us-content .section-header {
    text-align: left;
    margin-bottom: var(--space-xl);
}

.usp-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.usp-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.usp-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--accent-glow);
}

.usp-icon i {
    width: 24px;
    height: 24px;
}

.usp-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.usp-description {
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===================================
   Process Section
   =================================== */
.process {
    position: relative;
    overflow: hidden;
}

.process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    background-image:
        radial-gradient(circle at 25% 25%, var(--accent) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, var(--accent) 2px, transparent 2px);
    background-size: 50px 50px;
    background-position: 0 0, 25px 25px;
    pointer-events: none;
    z-index: 0;
}

.process .container {
    position: relative;
    z-index: 1;
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    position: relative;
}

.process-step {
    text-align: center;
    padding: var(--space-xl);
    position: relative;
}

.step-number {
    font-family: var(--font-display);
    font-size: 5rem;
    font-weight: 800;
    color: var(--bg-surface);
    line-height: 1;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 0;
    -webkit-text-stroke: 1px var(--border);
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 2px solid var(--accent);
    border-radius: 50%;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-glow);
}

.step-icon i {
    width: 36px;
    height: 36px;
    color: var(--accent-glow);
}

.step-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
}

.step-description {
    color: var(--text-muted);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.contact .container {
    position: relative;
    z-index: 1;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: start;
}

.info-card {
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.info-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.info-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-glow));
    border-radius: var(--border-radius-sm);
    color: white;
}

.info-icon i {
    width: 24px;
    height: 24px;
}

.info-content h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    color: var(--text-muted);
}

.info-content a {
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
}

.info-content a:hover {
    color: var(--accent-glow);
}

.info-content p {
    color: var(--text-primary);
    font-size: 1rem;
}

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

.social-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--accent-glow);
    transition: var(--transition-base);
}

.social-link:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.social-link i {
    width: 24px;
    height: 24px;
}

/* Contact Form */
.contact-form {
    padding: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--bg-secondary);
    padding: var(--space-3xl) 0 var(--space-lg);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--space-md);
}

.footer-description {
    color: var(--text-muted);
    line-height: 1.8;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.footer-links a,
.footer-contact a {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    font-size: 0.95rem;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--accent-glow);
    padding-left: var(--space-xs);
}

.footer-contact a i {
    width: 16px;
    height: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===================================
   Floating CTA
   =================================== */
.floating-cta {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: 999;
}

.float-btn {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    animation: pulse 2s infinite;
}

.float-btn:hover {
    transform: scale(1.1);
    animation: none;
}

.float-btn i {
    width: 28px;
    height: 28px;
}

.zalo-btn {
    background: linear-gradient(135deg, #0068ff, #0084ff);
    color: white;
}

.phone-btn {
    background: linear-gradient(135deg, var(--accent), var(--accent-glow));
    color: white;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: var(--shadow-lg);
    }
    50% {
        box-shadow: 0 0 40px rgba(14, 165, 233, 0.6);
    }
}

/* ===================================
   Animations - Repeatable on scroll
   =================================== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0);
}

/* Fade Up (default) */
[data-animate="fade-up"] {
    transform: translateY(40px);
}

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

/* Fade Left */
[data-animate="fade-left"] {
    opacity: 0;
    transform: translateX(-40px);
}

[data-animate="fade-left"].animated {
    opacity: 1;
    transform: translateX(0);
}

/* Fade Right */
[data-animate="fade-right"] {
    opacity: 0;
    transform: translateX(40px);
}

[data-animate="fade-right"].animated {
    opacity: 1;
    transform: translateX(0);
}

/* Scale (optional) */
[data-animate="scale"] {
    opacity: 0;
    transform: scale(0.9);
}

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

/* ===================================
   Language Selector
   =================================== */
.lang-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.lang-btn:hover {
    background: var(--bg-surface);
    border-color: var(--accent);
}

.lang-btn i {
    width: 16px;
    height: 16px;
}

.lang-arrow {
    transition: transform var(--transition-fast);
}

.lang-selector.active .lang-arrow {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    z-index: 1001;
    overflow: hidden;
}

.lang-selector.active .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    padding: 12px 16px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
}

.lang-option:hover {
    background: var(--bg-secondary);
    color: var(--accent-glow);
}

.lang-option.active {
    background: rgba(14, 165, 233, 0.15);
    color: var(--accent-glow);
}

.lang-option.active::after {
    content: '✓';
    margin-left: auto;
    font-size: 0.875rem;
}

.lang-flag {
    font-size: 1.25rem;
    line-height: 1;
}

/* ===================================
   Visitor Counter
   =================================== */
.visitor-counter {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-md) 0;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.visitor-counter i {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.visitor-number {
    font-weight: 600;
    color: var(--accent);
    font-family: var(--font-display);
}

/* Spin animation for loading */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spin {
    animation: spin 1s linear infinite;
}

/* Address link in contact */
.address-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ===================================
   Responsive Design
   =================================== */

/* Tablet */
@media (max-width: 1023px) {
    :root {
        --space-3xl: 4rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--bg-secondary);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: var(--space-3xl) var(--space-lg);
        align-items: flex-start;
        transition: right var(--transition-base);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        right: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    /* Language selector in mobile menu */
    .lang-selector {
        margin-top: var(--space-md);
        width: 100%;
    }

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

    .lang-dropdown {
        position: relative;
        top: var(--space-sm);
        width: 100%;
    }

    .why-us-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

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

/* Mobile */
@media (max-width: 639px) {
    :root {
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 3rem;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn-primary,
    .hero-cta .btn-secondary,
    .hero-cta .btn-outline {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .stat-divider {
        display: none;
    }

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

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

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

    .floating-cta {
        bottom: var(--space-md);
        right: var(--space-md);
    }

    .float-btn {
        width: 56px;
        height: 56px;
    }

    .float-btn i {
        width: 24px;
        height: 24px;
    }
}