:root {
    --bg-body: #f5f7fa;
    --bg-header: #000000;
    --bg-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-hero-alt: #f9fafb;
    --bg-section: #ffffff;
    --bg-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --bg-dark-solid: #111827;
    --primary: #2563eb;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-soft: #e0ecff;
    --text-main: #111827;
    --text-muted: #4b5563;
    --card-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
    --card-shadow-hover: 0 20px 40px rgba(15, 23, 42, 0.12);
    --radius-lg: 18px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
  html {
    scroll-behavior: smooth;
}
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", system-ui, sans-serif;
    background: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}
  a {
    text-decoration: none;
    color: inherit;
}
  img {
    max-width: 100%;
    display: block;
}
  /* базовая сетка */
  .container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}
  .row {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}
  .col {
    flex: 1 1 0;
}
  /* HEADER */
  header {
    position: sticky;
    top: 0;
    z-index: 100;
}
  .main-header-area {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}
  .main-header-area.scrolled {
    background: rgba(0, 0, 0, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}
  .main-header-area .row {
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}
  .logo img {
    display: block;
}
  .main-menu nav ul {
    list-style: none;
    display: flex;
    gap: 24px;
    font-size: 18px;
    font-weight: 500;
}
  .main-menu nav ul li a {
    color: var(--text-muted);
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
    transition: 0.2s;
}
  .main-menu nav ul li a.active,
.main-menu nav ul li a:hover {
    color: #fff;
    border-bottom-color: var(--primary);
}
  .book_btn a {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 999px;
    background: var(--primary-gradient);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
  .book_btn a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}
  .book_btn a:hover::before {
    left: 100%;
}
  .book_btn a:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
}
  /* HERO */
  .slider_area {
    background: var(--bg-hero);
    position: relative;
    overflow: hidden;
}
  .slider_area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}
  .single_slider {
    min-height: 500px;
    display: flex;
    align-items: center;
    position: relative;
    padding: 80px 0 100px;
    z-index: 1;
}
  .slider_text {
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}
  @keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
  .slider_text h3 {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: #fff;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
    line-height: 1.2;
}
  .slider_text span {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    max-width: 720px;
    display: inline-block;
    line-height: 1.7;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.1);
}
  .social_links {
    position: absolute;
    right: 32px;
    top: 50%;
    transform: translateY(-50%);
}
  .social_links ul {
    list-style: none;
}
  .social_links li {
    margin-bottom: 12px;
}
  .social_links li a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    font-size: 18px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}
  .social_links li a:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}
  /* СЕКЦИИ */
  section,
.service_area,
.portfolio_area,
.portfolio_image_area,
.about_me,
.counter_area,
.testimonial_area,
.discuss_projects {
    padding: 70px 0;
}
  .section_title {
    margin-bottom: 40px;
}
  .section_title span {
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 12px;
    color: #9ca3af;
    margin-bottom: 8px;
}
  .section_title h3 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.3;
}
  .fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
  .section_title.text-center {
    text-align: center;
}
  /* SKILLS / SERVICES */
  .single_service {
    background: var(--bg-section);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--card-shadow);
    height: 100%;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}
  .single_service::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
  .single_service:hover::before {
    transform: scaleX(1);
}
  .single_service:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: rgba(102, 126, 234, 0.2);
}
  .single_service h3 {
    font-size: 20px;
    margin-bottom: 12px;
    font-weight: 700;
    color: var(--text-main);
}
  .single_service p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}
  .service_area .row:nth-of-type(2) .col-xl-4,
.service_area .row:nth-of-type(2) .col-md-4 {
    flex: 1 1 calc(33.333% - 16px);
    min-width: 260px;
}
  /* PORTFOLIO HEADER */
  .portfolio_area {
    background: var(--bg-dark);
    color: #fff;
    position: relative;
    overflow: hidden;
}
  .portfolio_area::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}
  .portfolio_area .section_title span {
    color: rgba(255, 255, 255, 0.6);
}
  .portfolio_area .section_title h3 {
    color: #fff;
}
  /* PORTFOLIO GRID */
  .portfolio_image_area .row > div {
    flex: 1 1 0;
    min-width: 260px;
}
  .single_Portfolio {
    background: var(--bg-section);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    position: relative;
    transition: var(--transition);
    cursor: pointer;
}
  .single_Portfolio:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-shadow-hover);
}
  .portfolio_thumb {
    position: relative;
    overflow: hidden;
    height: 240px;
}
  .portfolio_thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
  .single_Portfolio:hover .portfolio_thumb img {
    transform: scale(1.1);
}
  .portfolio_thumb::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}
  .single_Portfolio:hover .portfolio_thumb::after {
    opacity: 1;
}
  .portfolio_hover {
    padding: 20px 24px;
    transition: var(--transition);
}
  .single_Portfolio:hover .portfolio_hover {
    background: linear-gradient(to bottom, rgba(102, 126, 234, 0.02), transparent);
}
  .portfolio_hover h3 {
    font-size: 20px;
    margin-bottom: 6px;
    font-weight: 700;
    transition: var(--transition);
}
  .single_Portfolio:hover .portfolio_hover h3 {
    color: var(--primary);
}
  .portfolio_hover p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}
  .more_portfolio {
    margin-top: 30px;
}
  .line_btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 999px;
    border: 2px solid var(--primary);
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
    background: #fff;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
  .line_btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--primary-gradient);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: -1;
}
  .line_btn:hover::before {
    width: 300px;
    height: 300px;
}
  .line_btn:hover {
    color: #fff;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}
  /* ABOUT */
  .about_me {
    position: relative;
}
  .about_large_title {
    position: absolute;
    left: 50%;
    top: 30px;
    transform: translateX(-50%);
    font-size: 64px;
    font-weight: 800;
    letter-spacing: 0.18em;
    color: rgba(148, 163, 184, 0.2);
    text-transform: uppercase;
    pointer-events: none;
}
  .about_me .row {
    align-items: center;
}
  .about_e_details h3 {
    font-size: 32px;
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
}
  .about_e_details p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.8;
}
  .download_cv .boxed-btn3 {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
}
  .download_cv .boxed-btn3:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}
  .about_img {
    position: relative;
    display: flex;
    justify-content: center;
}
  .color_pattern {
    position: absolute;
    inset: 0;
    opacity: 0.25;
}
  .my_Pic {
    position: relative;
    max-width: 300px;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(15, 23, 42, 0.25);
    transition: var(--transition);
}
  .my_Pic:hover {
    transform: scale(1.05);
    box-shadow: 0 30px 60px rgba(102, 126, 234, 0.3);
}
  .my_Pic::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 24px;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}
  .my_Pic:hover::before {
    opacity: 0.3;
}
  /* COUNTERS */
  .counter_area .row {
    justify-content: center;
}
  .single_counter {
    background: var(--bg-section);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--card-shadow);
    flex: 1 1 260px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}
  .single_counter::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}
  .single_counter:hover::before {
    transform: scaleX(1);
}
  .single_counter:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}
  .single_counter h3 {
    font-size: 42px;
    margin-bottom: 8px;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
  .single_counter p {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    font-weight: 600;
}
  /* TESTIMONIALS */
  .testimonial_area {
    background: #eef2ff;
}
  .testmonial_active {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}
  .single_carousel {
    flex: 1 1 300px;
}
  .single_testmonial {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    height: 100%;
}
  .single_testmonial:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}
  .single_testmonial p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.7;
    font-style: italic;
}
  .testmonial_author {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
}
  .testmonial_author .thumb img {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    object-fit: cover;
}
  .testmonial_author h3 {
    font-size: 15px;
    font-weight: 600;
}
  .testmonial_author span {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
}
  /* CONTACT / CTA */
  .discuss_projects {
    background: var(--bg-dark);
    color: #e5e7eb;
    text-align: center;
    position: relative;
    overflow: hidden;
}
  .discuss_projects::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}
  .project_text h3 {
    font-size: 36px;
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -0.02em;
}
  .project_text p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 28px;
    line-height: 1.7;
}
  .boxed-btn3 {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 999px;
    background: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
    position: relative;
    overflow: hidden;
}
  .boxed-btn3::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}
  .boxed-btn3:hover::before {
    left: 100%;
}
  .boxed-btn3:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(249, 115, 22, 0.5);
}
  /* FOOTER */
  .footer_top {
    padding: 26px 0 10px;
    background: #020617;
    color: #e5e7eb;
}
  .menu_links ul,
.socail_links ul {
    list-style: none;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
  .menu_links a {
    font-size: 13px;
    color: #9ca3af;
}
  .menu_links a:hover {
    color: #e5e7eb;
}
  .socail_links a {
    font-size: 16px;
    color: #9ca3af;
}
  .socail_links a:hover {
    color: #e5e7eb;
}
  .copy-right_text {
    background: #020617;
    color: #6b7280;
    padding: 16px 0 26px;
    font-size: 12px;
}
  /* АДАПТИВ */
  @media (max-width: 900px) {
    .main-header-area .row {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
      .social_links {
        display: none;
    }
      .slider_text h3 {
        font-size: 36px;
    }
      .slider_text span {
        font-size: 18px;
    }
      .about_large_title {
        font-size: 40px;
        top: 10px;
    }
      .section_title h3 {
        font-size: 28px;
    }
      .single_slider {
        min-height: 400px;
        padding: 60px 0 80px;
    }
}
  @media (max-width: 640px) {
    .section_title h3 {
        font-size: 24px;
    }
      .single_slider {
        min-height: 350px;
        padding: 40px 0 60px;
    }
      .slider_text h3 {
        font-size: 28px;
    }
      .slider_text span {
        font-size: 16px;
    }
      .project_text h3 {
        font-size: 28px;
    }
      .project_text p {
        font-size: 16px;
    }
}