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

@keyframes glitchAppear {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    45% {
        text-shadow: 2px 0 0 #0ff, -2px 0 0 #f0f;
        opacity: 1;
        transform: translateY(0);
    }
    55% {
        text-shadow: -2px 0 0 #0ff, 2px 0 0 #f0f;
    }
    100% {
        text-shadow: none;
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(100, 255, 218, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(100, 255, 218, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(100, 255, 218, 0);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Apply initial states */
.header,
.hero,
.section,
.footer {
    opacity: 0;
}

/* Animation delays */
.header {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s forwards;
}

.hero {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s forwards;
}

.section {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.6s forwards;
}

.footer {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.8s forwards;
}

/* Logo glitch effect */
.logo {
    animation: glitchAppear 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

/* CTA Button animation */
.btn-primary {
    position: relative;
    overflow: hidden;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover), var(--accent));
    background-size: 200% 100%;
    animation: gradientShift 8s ease infinite, pulse 2s infinite;
    transition: all 0.3s ease-in-out;
}

/* Nav items animation */
.nav-links li {
    opacity: 0;
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Stagger nav items */
.nav-links li:nth-child(1) { animation-delay: 0.5s; }
.nav-links li:nth-child(2) { animation-delay: 0.6s; }
.nav-links li:nth-child(3) { animation-delay: 0.7s; }
.nav-links li:nth-child(4) { animation-delay: 0.8s; }
.nav-links li:nth-child(5) { animation-delay: 0.9s; }

/* Hero content animation */
.hero-content > * {
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.hero-title { animation-delay: 0.6s; }
.hero-subtitle { animation-delay: 0.8s; }
.hero .btn { animation-delay: 1s; }

/* Section content animation */
.section-title,
.about-content,
.services-grid,
.portfolio-grid,
.contact-content {
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
}

/* Service cards animation */
.service-card {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.service-card:nth-child(1) { animation-delay: 0.4s; }
.service-card:nth-child(2) { animation-delay: 0.5s; }
.service-card:nth-child(3) { animation-delay: 0.6s; }

/* Portfolio items animation */
.portfolio-item {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.portfolio-item:nth-child(1) { animation-delay: 0.4s; }
.portfolio-item:nth-child(2) { animation-delay: 0.5s; }
.portfolio-item:nth-child(3) { animation-delay: 0.6s; }

/* Contact form animation */
.contact-form {
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s forwards;
}

/* Footer animation */
.footer-content {
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.6s forwards;
}

/* Scroll-based animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in {
    opacity: 0;
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate {
    opacity: 1;
    transform: translate(0, 0);
}

/* Staggered animations */
.staggered > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.staggered.animate > * {
    opacity: 1;
    transform: translateY(0);
}

/* Delay for staggered items */
.staggered > *:nth-child(1) { transition-delay: 0.1s; }
.staggered > *:nth-child(2) { transition-delay: 0.2s; }
.staggered > *:nth-child(3) { transition-delay: 0.3s; }
.staggered > *:nth-child(4) { transition-delay: 0.4s; }
.staggered > *:nth-child(5) { transition-delay: 0.5s; }
.staggered > *:nth-child(6) { transition-delay: 0.6s; }

/* ===== END ANIMATIONS =====

/* Base Styles & Variables */
:root {
    /* Colors */
    --primary-bg: #0a192f;
    --secondary-bg: #112240;
    --accent: #64ffda;
    --accent-hover: #4fd1c7;
    --text-primary: #ffffff;
    --text-secondary: #8892b0;
    --text-muted: #5e6b8d;
    --border-color: #233554;
    --card-bg: #112240;
    --overlay: rgba(10, 25, 47, 0.85);
    
    /* Typography */
    --font-heading: 'Fira Code', 'SF Mono', monospace;
    --font-body: 'Inter', -apple-system, sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px 0;
    --card-padding: 30px;
    --border-radius: 4px;
    --transition: all 0.3s ease-in-out;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background-color: var(--primary-bg);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

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

ul {
    list-style: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    color: var(--primary-bg);
    border: 1px solid var(--accent);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(100, 255, 218, 0.1);
    color: var(--primary-bg);
}

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

.btn-outline:hover {
    background: rgba(100, 255, 218, 0.1);
    transform: translateY(-3px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-telegram {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #0088cc;
    color: white !important;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
}

.btn-telegram:hover {
    background: #0077b5;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 136, 204, 0.2);
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
}

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

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

.nav-links a {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent);
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--accent);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 100px;
    position: relative;
    background-color: var(--primary-bg);
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1IiBoZWlnaHQ9IjUiPgo8cmVjdCB3aWR0aD0iNSIgaGVpZ2h0PSI1IiBmaWxsPSIjMTAxOTJmIj48L3JlY3Q+CjxwYXRoIGQ9Ik0wIDVMNSAwWk02IDRMNCA2Wk0tMSAxTDEgLTFaIiBzdHJva2U9IiMwYzE5MmYiIHN0cm9rZS13aWR0aD0iMSI+PC9wYXRoPgo8L3N2Zz4=');
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Section Styling */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 2px;
    background-color: var(--accent);
    margin: 1.5rem auto 0;
}

.highlight {
    color: var(--accent);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background-color: var(--secondary-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    border: 3px solid var(--accent);
    box-shadow: 0 10px 30px -15px rgba(100, 255, 218, 0.2);
}

.image-placeholder i {
    font-size: 8rem;
    color: var(--accent);
    opacity: 0.5;
}

/* Services Section */
.services {
    background-color: var(--secondary-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background-color: var(--card-bg);
    padding: var(--card-padding);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
    border-color: var(--accent);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Portfolio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.portfolio-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    aspect-ratio: 16/9;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 25, 47, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
    padding: 2rem;
    text-align: center;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-info h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.portfolio-info p {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* Process Section */
.process {
    background-color: var(--secondary-bg);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-step {
    text-align: center;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
    border-color: var(--accent);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
    font-weight: 700;
}

.process-step h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.process-step p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.contact-details {
    margin: 2rem 0;
}

.contact-details p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.contact-details i {
    color: var(--accent);
    width: 20px;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--secondary-bg);
    color: var(--accent);
    font-size: 1.25rem;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.social-links a:hover {
    background-color: var(--accent);
    color: var(--primary-bg);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    color: var(--text-secondary);
    transition: var(--transition);
    pointer-events: none;
    background-color: var(--card-bg);
    padding: 0 0.5rem;
    transform-origin: left center;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    transform: translateY(-1.5rem) scale(0.9);
    color: var(--accent);
}

/* Footer */
.footer {
    background-color: var(--secondary-bg);
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: inline-block;
}

.footer-copyright {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.footer-note {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.fade-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-image {
        order: -1;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--primary-bg);
        flex-direction: column;
        padding: 2rem 0;
        gap: 1.5rem;
        transform: translateY(-150%);
        transition: var(--transition);
        box-shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .mobile-menu-btn {
        display: block;
        z-index: 1001;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 1.75rem;
        margin-bottom: 2rem;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .btn {
        width: 100%;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}