/* ===== CSS Variables ===== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --accent: #22d3ee;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --dark-lighter: #334155;
    --light: #f8fafc;
    --light-dark: #e2e8f0;
    --gray: #94a3b8;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-dark: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(14, 165, 233, 0.2) 100%);
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

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

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--gradient-glow);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--dark);
    border: 2px solid var(--light-dark);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ===== Preloader ===== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.loader-ring {
    width: 60px;
    height: 60px;
    border: 3px solid var(--dark-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    color: white;
    font-size: 1.25rem;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.navbar:not(.scrolled) .logo-text {
    color: white;
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--gray);
    position: relative;
    padding: 0.5rem 0;
}

.navbar:not(.scrolled) .nav-link {
    color: rgba(255, 255, 255, 0.8);
}

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

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

.navbar:not(.scrolled) .nav-link:hover,
.navbar:not(.scrolled) .nav-link.active {
    color: white;
}

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

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-right: 1rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem;
    border-radius: var(--radius-full);
}

.navbar.scrolled .lang-switcher {
    background: var(--light);
}

.lang-btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
}

.navbar.scrolled .lang-btn {
    color: var(--gray);
}

.lang-btn:hover {
    color: white;
}

.navbar.scrolled .lang-btn:hover {
    color: var(--primary);
}

.lang-btn.active {
    background: var(--gradient-primary);
    color: white;
}

.navbar.scrolled .lang-btn.active {
    color: white;
}

.nav-cta {
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    border-radius: var(--radius-md);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--dark);
    transition: var(--transition);
}

.navbar:not(.scrolled) .nav-toggle span {
    background: white;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 1.5rem 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dark) 0%, #1a1a2e 50%, var(--dark-light) 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content {
    max-width: 900px;
    text-align: center;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease;
}

.hero-badge i {
    color: var(--warning);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    color: white;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 700px;
    margin: 0 auto 2rem;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.4s both;
}

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

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: fadeInUp 0.6s ease 0.5s both;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-indicator i {
    animation: bounce 2s infinite;
}

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

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

/* ===== About Section ===== */
.about {
    padding: 6rem 0;
    background: var(--light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-icon {
    width: 24px;
    height: 24px;
    color: var(--success);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.feature-content h4 {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.feature-content p {
    font-size: 0.875rem;
    color: var(--gray);
}

.about-visual {
    position: relative;
}

.about-image-wrapper {
    position: relative;
}

.about-image {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--gradient-glow);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--primary);
    font-size: 3rem;
}

.image-placeholder span {
    font-size: 1rem;
    color: var(--gray);
}

.about-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.card-experience {
    bottom: -20px;
    left: -20px;
}

.card-clients {
    top: -20px;
    right: -20px;
    animation-delay: 1.5s;
}

.card-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    color: white;
    font-size: 1.25rem;
}

.card-number {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.card-text {
    font-size: 0.875rem;
    color: var(--gray);
}

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

/* ===== Services Section ===== */
.services {
    padding: 6rem 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    position: relative;
    padding: 2rem;
    background: var(--light);
    border-radius: var(--radius-xl);
    border: 1px solid var(--light-dark);
    transition: var(--transition);
}

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

.service-card.featured {
    background: var(--gradient-primary);
    border: none;
}

.service-card.featured .service-icon,
.service-card.featured .service-title,
.service-card.featured .service-desc,
.service-card.featured .service-list,
.service-card.featured .service-list li,
.service-card.featured .service-link {
    color: white;
}

.service-card.featured .service-icon {
    background: rgba(255, 255, 255, 0.2);
}

.service-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-glow);
    border-radius: var(--radius-lg);
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.75rem;
}

.service-desc {
    font-size: 0.9375rem;
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.service-list {
    margin-bottom: 1.5rem;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--dark-lighter);
    margin-bottom: 0.5rem;
}

.service-list li i {
    color: var(--success);
    font-size: 0.75rem;
}

.service-card.featured .service-list li i {
    color: white;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary);
}

.service-link:hover {
    gap: 0.75rem;
}

/* ===== Why Us Section ===== */
.why-us {
    padding: 6rem 0;
    background: var(--light);
}

.why-us-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.section-text {
    color: var(--gray);
    margin-bottom: 2rem;
}

.advantages-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.advantage-item {
    display: flex;
    gap: 1.5rem;
}

.advantage-number {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.5;
}

.advantage-content h4 {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.advantage-content p {
    font-size: 0.9375rem;
    color: var(--gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-card {
    padding: 2rem;
    background: white;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.stat-card .stat-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-glow);
    border-radius: var(--radius);
    color: var(--primary);
    font-size: 1.25rem;
    margin: 0 auto 1rem;
}

.stat-card .stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark);
}

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

/* ===== Team Section ===== */
.team {
    padding: 6rem 0;
    background: white;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

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

.team-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    background: var(--gradient-glow);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.team-image .image-placeholder {
    font-size: 4rem;
}

.team-social {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(100%);
    transition: var(--transition);
}

.team-card:hover .team-social {
    opacity: 1;
    transform: translateY(0);
}

.team-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius);
    color: var(--dark);
}

.team-social a:hover {
    background: var(--primary);
    color: white;
}

.team-name {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.team-role {
    font-size: 0.875rem;
    color: var(--primary);
}

.team-note {
    text-align: center;
    margin-top: 3rem;
    padding: 1rem 2rem;
    background: var(--gradient-glow);
    border-radius: var(--radius-lg);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 50%;
    transform: translateX(-50%);
}

/* ===== Contact Section ===== */
.contact {
    padding: 6rem 0;
    background: var(--dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info .section-tag {
    background: rgba(99, 102, 241, 0.2);
}

.contact-info .section-title {
    color: white;
}

.contact-text {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius);
    color: var(--primary-light);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-content h4 {
    font-weight: 600;
    color: white;
    margin-bottom: 0.25rem;
}

.contact-content a,
.contact-content p {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    display: block;
}

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

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    color: white;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.contact-form-wrapper {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-weight: 500;
    color: var(--dark);
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 1px solid var(--light-dark);
    border-radius: var(--radius);
    background: var(--light);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.contact-form .btn {
    grid-column: span 2;
    margin-top: 0.5rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    border-top: 1px solid var(--dark-light);
    padding: 4rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--dark-light);
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand .logo-text {
    color: white;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-light);
    border-radius: var(--radius);
    color: white;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-display);
    font-weight: 600;
    color: white;
    margin-bottom: 1.5rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
}

.footer-contact li i {
    color: var(--primary-light);
    margin-top: 0.25rem;
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a:hover {
    color: var(--primary-light);
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    color: white;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: white;
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        padding: 2rem;
        box-shadow: var(--shadow-xl);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu .nav-link {
        color: var(--dark);
        font-size: 1.25rem;
    }
    
    .lang-switcher {
        background: var(--light);
        margin-right: 0.5rem;
    }
    
    .lang-btn {
        color: var(--gray);
        padding: 0.35rem 0.6rem;
    }
    
    .nav-cta {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .about-grid,
    .why-us-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-visual {
        order: -1;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .contact-form .btn {
        grid-column: span 1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social,
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .about-card {
        position: relative;
        top: auto !important;
        bottom: auto !important;
        left: auto !important;
        right: auto !important;
        margin-top: 1rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Particle styles */
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 15s infinite;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0);
        opacity: 0.3;
    }
    25% {
        transform: translate(100px, -100px);
        opacity: 0.6;
    }
    50% {
        transform: translate(200px, 0);
        opacity: 0.3;
    }
    75% {
        transform: translate(100px, 100px);
        opacity: 0.6;
    }
}