@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600&display=swap');

:root {
    --black: #0a0a0a;
    --dark-gray: #1a1a1a;
    --gray: #2a2a2a;
    --light-gray: #9a9a9a;
    --white: #e6e6e6;
    --accent: #8a8a8a;
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--black);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 15px 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(5px);
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--white);
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: 1px;
    z-index: 1002;
    transition: transform 0.3s ease;
}

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

.logo-img {
    height: 50px;
    margin-right: 10px;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    margin-right: 20px;
}

.nav-links li {
    margin-left: 25px;
}

.nav-links a {
    text-decoration: none;
    color: var(--white);
    font-size: 0.9rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a i {
    margin-right: 8px;
    font-size: 0.8rem;
    color: var(--accent);
}

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

.language-selector {
    position: relative;
    cursor: pointer;
}

.current-language {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    transition: var(--transition);
}

.current-language:hover {
    color: var(--accent);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--dark-gray);
    padding: 10px;
    border-radius: 4px;
    display: none;
    width: 120px;
    margin-top: 10px;
    z-index: 1001;
    opacity: 0;
    transform: translateY(-10px);
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.language-dropdown.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.language-option {
    padding: 8px 0;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.language-option i {
    margin-right: 8px;
    opacity: 0;
    transition: var(--transition);
}

.language-option:hover {
    color: var(--accent);
}

/* Mobile menu */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1002;
    transition: var(--transition);
}

.burger-menu:focus {
    outline: none;
}

.burger-line {
    width: 30px;
    height: 3px;
    background-color: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.burger-menu.active .burger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger-menu.active .burger-line:nth-child(2) {
    opacity: 0;
}

.burger-menu.active .burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: var(--dark-gray);
    padding: 80px 30px 30px;
    transition: var(--transition);
    z-index: 1001;
    overflow-y: auto;
    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.2);
}

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

.mobile-nav-links {
    list-style: none;
}

.mobile-nav-links li {
    margin-bottom: 20px;
    opacity: 0;
    transform: translateX(20px);
    transition: var(--transition);
}

.mobile-nav.active .mobile-nav-links li {
    opacity: 1;
    transform: translateX(0);
}

.mobile-nav.active .mobile-nav-links li:nth-child(1) {
    transition-delay: 0.1s;
}

.mobile-nav.active .mobile-nav-links li:nth-child(2) {
    transition-delay: 0.15s;
}

.mobile-nav.active .mobile-nav-links li:nth-child(3) {
    transition-delay: 0.2s;
}

.mobile-nav.active .mobile-nav-links li:nth-child(4) {
    transition-delay: 0.25s;
}

.mobile-nav-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.mobile-nav-links a:hover {
    color: var(--accent);
    transform: translateX(5px);
}

.mobile-nav-links a i {
    margin-right: 10px;
    color: var(--accent);
}

.mobile-language-selector {
    margin-top: 30px;
    opacity: 0;
    transform: translateX(20px);
    transition: var(--transition);
}

.mobile-nav.active .mobile-language-selector {
    opacity: 1;
    transform: translateX(0);
    transition-delay: 0.3s;
}

.mobile-language-options {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.mobile-language-option {
    padding: 5px 10px;
    border: 1px solid var(--accent);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.mobile-language-option.active {
    background-color: var(--accent);
    color: var(--black);
}

.mobile-language-option:hover {
    background-color: var(--accent);
    color: var(--black);
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards 0.3s;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
}

.hero-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 20px;
    animation: pulse 2s infinite ease-in-out;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero p {
    font-size: 1.1rem;
    color: var(--light-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    padding: 80px 0;
}

.section-title {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 40px;
    text-align: center;
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards 0.4s;
}

.section-title i {
    margin-right: 15px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--dark-gray);
    padding: 30px;
    border-left: 1px solid var(--gray);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
}

.service-card.animated {
    animation: fadeInUp 0.8s forwards;
}

.service-card:nth-child(1) {
    animation-delay: 0.2s;
}

.service-card:nth-child(2) {
    animation-delay: 0.3s;
}

.service-card:nth-child(3) {
    animation-delay: 0.4s;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--accent);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.service-card:hover::before {
    height: 100%;
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.service-card h3 i {
    margin-right: 10px;
    font-size: 1rem;
}

.service-card p {
    color: var(--light-gray);
    font-size: 0.95rem;
}

/* Experience Section */
.experience {
    padding: 80px 0;
    background-color: var(--dark-gray);
}

.experience-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.experience-content p {
    margin-bottom: 20px;
    color: var(--light-gray);
    display: flex;
    align-items: flex-start;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.experience-content p.animated {
    animation: fadeInUp 0.8s forwards;
}

.experience-content p:nth-child(1) {
    animation-delay: 0.2s;
}

.experience-content p:nth-child(2) {
    animation-delay: 0.3s;
}

.experience-content p:nth-child(3) {
    animation-delay: 0.4s;
}

.experience-content p i {
    margin-right: 10px;
    color: var(--accent);
    margin-top: 5px;
}

/* Process Section */
.process {
    padding: 80px 0;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    flex-wrap: wrap;
}

.step {
    width: 23%;
    text-align: center;
    position: relative;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.step.animated {
    animation: fadeInUp 0.8s forwards;
}

.step:nth-child(1) {
    animation-delay: 0.2s;
}

.step:nth-child(2) {
    animation-delay: 0.3s;
}

.step:nth-child(3) {
    animation-delay: 0.4s;
}

.step:nth-child(4) {
    animation-delay: 0.5s;
}

.step-number {
    width: 60px;
    height: 60px;
    border: 1px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.2rem;
    color: var(--accent);
    position: relative;
    background: var(--dark-gray);
    z-index: 2;
    transition: var(--transition);
}

.step:hover .step-number {
    background-color: var(--accent);
    color: var(--black);
    transform: scale(1.1);
}

.step h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step h3 i {
    margin-right: 8px;
}

.step p {
    font-size: 0.85rem;
    color: var(--light-gray);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--dark-gray);
    text-align: center;
}

.contact-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    transition: var(--transition);
}

.contact-icon:hover {
    transform: scale(1.1) rotate(5deg);
}

.telegram-link {
    display: inline-flex;
    align-items: center;
    padding: 15px 30px;
    background-color: var(--black);
    color: var(--white);
    text-decoration: none;
    border: 1px solid var(--gray);
    transition: var(--transition);
    margin-top: 20px;
    font-weight: 600;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards 0.5s;
}

.telegram-link:hover {
    background-color: var(--gray);
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.telegram-link i {
    margin-right: 10px;
    font-size: 1.2rem;
}

/* Footer */
footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--gray);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.copyright {
    color: var(--light-gray);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.copyright i {
    margin-right: 8px;
    color: var(--accent);
}

/* Scroll to top button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--dark-gray);
    border: 1px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background-color: var(--accent);
    transform: translateY(-5px);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .step {
        width: 48%;
    }
    
    .nav-links, .language-selector {
        display: none;
    }
    
    .burger-menu {
        display: flex;
    }
    
    .service-icon {
        font-size: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .logo-img {
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 140px 0 80px;
    }
    
    .step {
        width: 100%;
    }
    
    .service-card {
        padding: 20px;
    }
    
    .logo-img {
        height: 40px;
    }
    
    .hero-icon {
        font-size: 2.5rem;
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .step {
        width: 100%;
        margin-bottom: 30px;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    .mobile-nav {
        width: 85%;
    }
}