/* Основные стили */
:root {
    --primary-color: #00ff41;
    --secondary-color: #008f11;
    --bg-color: #0a0a0a;
    --card-bg: #111111;
    --text-color: #f0f0f0;
    --text-secondary: #888;
    --border-color: #333;
    --success: #00ff41;
    --warning: #ff9d00;
    --danger: #ff003c;
    --info: #0066ff;
    --matrix-green: #00ff41;
    --observability-blue: #0066ff;
    --dark-orange: #ff6b00;
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Matrix эффект */
.matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.03;
}

.matrix-char {
    position: absolute;
    color: var(--primary-color);
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    opacity: 0;
    animation: matrixFall linear infinite;
}

@keyframes matrixFall {
    0% { transform: translateY(-100px); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(100vh); opacity: 0; }
}

/* Header */
header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
}

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

.logo {
    font-family: 'Source Code Pro', monospace;
    font-size: 24px;
    font-weight: 900;
    color: var(--primary-color);
    text-decoration: none;
    position: relative;
    display: flex;
    align-items: center;
    gap: 5px;
}

.logo-brackets {
    color: var(--text-color);
    animation: pulseBrackets 3s infinite;
}

.logo-name {
    color: var(--primary-color);
    position: relative;
    overflow: hidden;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--primary-color));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: logoShine 3s linear infinite;
}

@keyframes logoShine {
    to { background-position: 200% center; }
}

@keyframes pulseBrackets {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.domain {
    font-family: 'Source Code Pro', monospace;
    font-size: 16px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.domain::before {
    content: '❯';
    color: var(--primary-color);
}

/* Навигация */
.main-nav {
    display: flex;
    gap: 30px;
}

.main-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    transition: color var(--transition-speed);
    position: relative;
}

.main-nav a:hover {
    color: var(--primary-color);
}

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

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

/* Theme Selector */
.theme-selector {
    display: flex;
    gap: 10px;
}

.theme-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.theme-btn.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.theme-btn.small {
    width: 30px;
    height: 30px;
    font-size: 12px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 150px 0 100px;
    position: relative;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 60px;
}

.hero-title {
    font-family: 'Source Code Pro', monospace;
    font-size: 48px;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    color: var(--text-secondary);
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 12px 30px;
    border-radius: 4px;
    font-family: 'Source Code Pro', monospace;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-speed);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 255, 65, 0.2);
}

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

.btn-secondary:hover {
    background-color: rgba(0, 255, 65, 0.1);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    border-color: var(--primary-color);
    background-color: rgba(0, 255, 65, 0.05);
}

/* Terminal */
.terminal-window {
    background-color: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.terminal-header {
    background-color: #222;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background-color: #ff5f56; }
.dot.yellow { background-color: #ffbd2e; }
.dot.green { background-color: #27ca3f; }

.terminal-title {
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    color: var(--text-secondary);
    margin-left: 20px;
}

.terminal-body {
    padding: 25px;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
}

.terminal-line {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.prompt {
    color: var(--primary-color);
    font-weight: 700;
}

.command {
    color: var(--text-color);
}

.terminal-output {
    color: var(--text-secondary);
    margin-bottom: 20px;
    margin-left: 25px;
}

.skill-percent {
    color: var(--primary-color);
}

.cursor {
    display: inline-block;
    width: 8px;
    height: 18px;
    background-color: var(--primary-color);
    animation: blink 1s infinite;
}

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

/* Hero Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    border-top: 1px solid var(--border-color);
    padding-top: 50px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-family: 'Source Code Pro', monospace;
    font-size: 48px;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Sections */
.section {
    padding: 80px 0;
    border-top: 1px solid var(--border-color);
}

.section-title {
    font-family: 'Source Code Pro', monospace;
    font-size: 36px;
    margin-bottom: 15px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 15px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
}

/* Tech Stack */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

.filter-label {
    color: var(--text-secondary);
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
}

.filter-btn {
    padding: 8px 20px;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    font-family: 'Source Code Pro', monospace;
    cursor: pointer;
    transition: all var(--transition-speed);
    border-radius: 4px;
    font-size: 14px;
}

.filter-btn:hover, .filter-btn.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: rgba(0, 255, 65, 0.05);
}

.category-select {
    padding: 8px 15px;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    font-family: 'Source Code Pro', monospace;
    border-radius: 4px;
    min-width: 200px;
}

.category-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.tech-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
    cursor: pointer;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

.tech-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.tech-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.tech-name {
    font-family: 'Source Code Pro', monospace;
    font-size: 20px;
    font-weight: 700;
}

.tech-percentage {
    font-family: 'Source Code Pro', monospace;
    color: var(--primary-color);
    font-weight: 900;
    font-size: 18px;
}

.tech-category {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.tech-level {
    display: inline-block;
    padding: 4px 12px;
    background-color: rgba(0, 255, 65, 0.1);
    color: var(--primary-color);
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 15px;
}

.tech-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.progress-bar {
    height: 8px;
    background-color: #222;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    border-radius: 4px;
    transition: width 1.5s ease-out;
}

/* Projects */
.project-filters {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.project-filter-btn {
    padding: 8px 20px;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    font-family: 'Source Code Pro', monospace;
    cursor: pointer;
    transition: all var(--transition-speed);
    border-radius: 4px;
    font-size: 14px;
}

.project-filter-btn:hover, .project-filter-btn.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: rgba(0, 255, 65, 0.05);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    transition: all var(--transition-speed);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.project-title {
    font-family: 'Source Code Pro', monospace;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 5px;
}

.project-status {
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.status-active {
    background-color: rgba(0, 255, 65, 0.15);
    color: var(--success);
    border: 1px solid rgba(0, 255, 65, 0.5);
}

.status-completed {
    background-color: rgba(0, 102, 255, 0.15);
    color: var(--info);
    border: 1px solid rgba(0, 102, 255, 0.5);
}

.status-archived {
    background-color: rgba(255, 157, 0, 0.15);
    color: var(--warning);
    border: 1px solid rgba(255, 157, 0, 0.5);
}

.status-opensource {
    background-color: rgba(255, 0, 60, 0.15);
    color: var(--danger);
    border: 1px solid rgba(255, 0, 60, 0.5);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.7;
}

.project-techs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-tag {
    padding: 6px 12px;
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    font-size: 13px;
    font-family: 'Source Code Pro', monospace;
    transition: all var(--transition-speed);
}

.tech-tag:hover {
    background-color: rgba(0, 255, 65, 0.15);
    color: var(--primary-color);
}

.section-footer {
    text-align: center;
    margin-top: 40px;
}

/* Experience Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    padding-left: 80px;
}

.timeline-date {
    position: absolute;
    left: 0;
    top: 0;
    width: 70px;
    text-align: right;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    color: var(--primary-color);
}

.timeline-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
}

.timeline-title {
    font-family: 'Source Code Pro', monospace;
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.timeline-company {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 15px;
}

.timeline-description {
    list-style: none;
}

.timeline-description li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.timeline-description li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Certifications */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.certification-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    transition: all var(--transition-speed);
}

.certification-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.certification-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
}

.certification-icon.aws {
    background-color: rgba(255, 153, 0, 0.1);
    color: #ff9900;
}

.certification-icon.kubernetes {
    background-color: rgba(0, 102, 255, 0.1);
    color: #0066ff;
}

.certification-icon.docker {
    background-color: rgba(0, 145, 218, 0.1);
    color: #0091da;
}

.certification-icon.terraform {
    background-color: rgba(94, 106, 210, 0.1);
    color: #5e6ad2;
}

.certification-title {
    font-family: 'Source Code Pro', monospace;
    font-size: 16px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.certification-date {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Contact */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    padding-right: 30px;
}

.contact-title {
    font-family: 'Source Code Pro', monospace;
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 20px;
    color: var(--text-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}

.contact-method:hover {
    color: var(--primary-color);
}

.contact-method i {
    font-size: 24px;
    width: 50px;
    height: 50px;
    background-color: var(--card-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.method-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.method-value {
    font-family: 'Source Code Pro', monospace;
    font-size: 16px;
}

.contact-form .form-group {
    margin-bottom: 25px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    transition: all var(--transition-speed);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 255, 65, 0.1);
}

.contact-form textarea {
    resize: vertical;
}

/* Footer */
footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-domain {
    font-family: 'Source Code Pro', monospace;
    font-size: 18px;
    color: var(--text-secondary);
    margin-top: 5px;
}

.footer-tagline {
    color: var(--text-secondary);
    margin-top: 15px;
    font-size: 14px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-family: 'Source Code Pro', monospace;
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color var(--transition-speed);
    font-size: 14px;
}

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

.footer-column a i {
    margin-right: 10px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.copyright {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-theme {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-theme span {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 1001;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
    padding: 40px;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    animation: modalAppear 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalAppear {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-speed);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-modal:hover {
    color: var(--primary-color);
    background-color: rgba(255, 255, 255, 0.05);
}

.modal-title {
    font-family: 'Source Code Pro', monospace;
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.modal-tech-info {
    margin-bottom: 20px;
}

.modal-tech-info p {
    margin-bottom: 15px;
    font-size: 16px;
}

.modal-projects {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* Particle эффекты */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

/* Scroll progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    z-index: 1000;
    transition: width 0.1s;
}

/* Snow effect */
.snowflake {
    position: absolute;
    top: -20px;
    color: #ffffff;
    font-size: 1.2em;
    opacity: 0.9;
    pointer-events: none;
    z-index: 9999;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
    animation-timing-function: linear, ease-in-out;
}

.binary-snowflake {
    font-family: 'Source Code Pro', monospace;
    color: var(--primary-color);
}

/* Themes */
.matrix-theme {
    --primary-color: #00ff41;
    --secondary-color: #008f11;
    --bg-color: #0a0a0a;
    --card-bg: #111111;
}

.observability-theme {
    --primary-color: #0066ff;
    --secondary-color: #0099ff;
    --bg-color: #0a0f1a;
    --card-bg: #111827;
}

.dark-theme {
    --primary-color: #ff6b00;
    --secondary-color: #ff8c42;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-content {
        position: relative;
    }
    
    .main-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-grid,
    .project-grid {
        grid-template-columns: 1fr;
    }
    
    .filters {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filter-group {
        flex-wrap: wrap;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
    }
}

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

.float {
    animation: float 3s ease-in-out infinite;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Добавь эти стили в конец файла styles/main.css */

/* Анимации для снега */
@keyframes snowFall {
    0% {
        transform: translateY(-100px) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) translateX(100px) rotate(360deg);
        opacity: 0;
    }
}

@keyframes snowFall2 {
    0% {
        transform: translateY(-100px) translateX(100px) rotate(180deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) translateX(-100px) rotate(540deg);
        opacity: 0;
    }
}

@keyframes snowFall3 {
    0% {
        transform: translateY(-100px) translateX(-100px) rotate(90deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) translateX(200px) rotate(720deg);
        opacity: 0;
    }
}

/* Стили для снежинок */
.snowflake {
    position: fixed;
    top: -20px;
    color: white;
    font-size: 1.5em;
    opacity: 0.8;
    pointer-events: none;
    z-index: 9998;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    animation-timing-function: linear;
}

.binary-snowflake {
    font-family: 'Source Code Pro', monospace;
    color: #00ff41;
    text-shadow: 0 0 10px #00ff41;
}

/* Прелоадер */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loader {
    width: 80px;
    height: 80px;
    position: relative;
}

.loader-inner {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 4px solid transparent;
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-inner:nth-child(2) {
    border: 4px solid transparent;
    border-bottom-color: var(--primary-color);
    animation: spinReverse 1s linear infinite;
}

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

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

/* Цвета для уровней */
.level-expert {
    color: #00ff41 !important;
    background-color: rgba(0, 255, 65, 0.1) !important;
    border-color: rgba(0, 255, 65, 0.3) !important;
}

.level-advanced {
    color: #ff9d00 !important;
    background-color: rgba(255, 157, 0, 0.1) !important;
    border-color: rgba(255, 157, 0, 0.3) !important;
}

.level-intermediate {
    color: #0066ff !important;
    background-color: rgba(0, 102, 255, 0.1) !important;
    border-color: rgba(0, 102, 255, 0.3) !important;
}

.level-beginner {
    color: #888 !important;
    background-color: rgba(136, 136, 136, 0.1) !important;
    border-color: rgba(136, 136, 136, 0.3) !important;
}

/* Анимации */
@keyframes floatIn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

.float {
    animation: float 3s ease-in-out infinite;
}

.tech-experience {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
}