:root {
      --accent: #7DC934;
      --accent-dim: #5fa324;
      --accent-glow: rgba(125, 201, 52, 0.18);

      --bg: #111210;
      --bg-card: #1a1c18;
      --bg-card-hover: #1f2219;
      --bg-skill: #222519;
      --border: rgba(255,255,255,0.08);
      --text-primary: #f0f0ec;
      --text-secondary: #8a8d82;
      --text-muted: #555850;
      --logo-color: var(--accent);
      --nav-bg: rgba(17,18,16,0.85);
      --shadow: 0 4px 32px rgba(0,0,0,0.45);
      --tag-bg: rgba(255,255,255,0.07);
      --tag-border: rgba(255,255,255,0.12);
      --tag-text: #c8cbbf;
      --dot-color: rgba(125,201,52,0.15);
      --btn-outline-border: rgba(255,255,255,0.25);
      --btn-outline-text: var(--text-primary);
      --icon-circle-bg: rgba(125,201,52,0.15);
    }


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

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

    body {
      background: var(--bg);
      color: var(--text-primary);
      font-family: 'DM Sans', sans-serif;
      line-height: 1.65;
      transition: background 0.35s ease, color 0.35s ease;
      min-height: 100vh;
      overflow-x: hidden;
    }

    ::selection {
      background: var(--accent);
      color: #111;
    }

    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb { background: var(--accent-dim); border-radius: 3px; }

    h1, h2, h3, h4 { font-family: 'Syne', sans-serif; font-weight: 700; line-height: 1.15; }

    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      background: var(--nav-bg);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      transition: background 0.35s ease;
    }

    .nav-inner {
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 2rem;
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-logo {
      font-family: 'Syne', sans-serif;
      font-weight: 800;
      font-size: 1.2rem;
      color: var(--logo-color);
      text-decoration: none;
      letter-spacing: -0.01em;
      transition: opacity 0.2s;
    }
    .nav-logo:hover { opacity: 0.8; }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 2rem;
      list-style: none;
    }

    .nav-links a {
      color: var(--text-secondary);
      text-decoration: none;
      font-size: 0.9rem;
      font-weight: 500;
      transition: color 0.2s;
      position: relative;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -2px; left: 0; right: 0;
      height: 1px;
      background: var(--accent);
      transform: scaleX(0);
      transition: transform 0.25s ease;
    }
    .nav-links a:hover { color: var(--text-primary); }
    .nav-links a:hover::after { transform: scaleX(1); }

    .nav-right {
      display: flex;
      align-items: center;
      gap: 1rem;
    }


    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      padding: 6px;
      border: none;
      background: none;
    }
    .hamburger span {
      width: 22px; height: 2px;
      background: var(--text-primary);
      border-radius: 2px;
      display: block;
      transition: all 0.3s;
    }
    .hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .mobile-menu {
      display: none;
      position: fixed;
      top: 64px; left: 0; right: 0;
      background: var(--nav-bg);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      padding: 1.5rem 2rem;
      flex-direction: column;
      gap: 1.25rem;
      z-index: 99;
      animation: slideDown 0.25s ease;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a {
      color: var(--text-primary);
      text-decoration: none;
      font-size: 1rem;
      font-weight: 500;
      padding: 0.5rem 0;
      border-bottom: 1px solid var(--border);
    }

    @keyframes slideDown {
      from { opacity: 0; transform: translateY(-10px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    main {
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 2rem;
    }

    section {
      padding: 5rem 0;
    }

    .dot-grid {
      position: absolute;
      width: 200px; height: 200px;
      background-image: radial-gradient(circle, var(--dot-color) 1.5px, transparent 1.5px);
      background-size: 18px 18px;
      pointer-events: none;
    }

    .hero-socials {
      display: flex;
      gap: 0.75rem;
      flex-wrap: wrap;
      margin-bottom: 1.5rem;
    }

    .hero-social-link {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      color: var(--text-secondary);
      text-decoration: none;
      font-size: 0.88rem;
      font-weight: 500;
      padding: 0.45rem 0.9rem;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--bg-card);
      transition: all 0.2s;
    }
    .hero-social-link:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-1px);
    }

    #hero {
      padding-top: 9rem;
      padding-bottom: 5rem;
      position: relative;
      min-height: 90vh;
      display: flex;
      align-items: center;
    }

    .hero-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
      width: 100%;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 1.1rem;
      margin-bottom: 1rem;
      color: var(--text-secondary);
    }

    .hero-name {
      font-size: clamp(2.8rem, 6vw, 4.5rem);
      font-weight: 800;
      letter-spacing: -0.03em;
      line-height: 1.05;
      margin-bottom: 0.4rem;
    }

    .hero-role {
      font-size: 1.25rem;
      color: var(--accent);
      font-weight: 600;
      font-family: 'Syne', sans-serif;
      margin-bottom: 1.4rem;
    }

    [data-theme="light"] .hero-role { color: var(--accent-dim); }

    .hero-desc {
      color: var(--text-secondary);
      font-size: 1rem;
      max-width: 440px;
      margin-bottom: 2rem;
      line-height: 1.7;
    }

    .hero-cta {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: var(--accent);
      color: #111;
      padding: 0.75rem 1.5rem;
      border-radius: 10px;
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      border: none;
      cursor: pointer;
      transition: all 0.2s;
      font-family: 'DM Sans', sans-serif;
    }
    .btn-primary:hover {
      background: var(--accent-dim);
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(125,201,52,0.35);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: transparent;
      color: var(--btn-outline-text);
      padding: 0.75rem 1.5rem;
      border-radius: 10px;
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      border: 1px solid var(--btn-outline-border);
      cursor: pointer;
      transition: all 0.2s;
      font-family: 'DM Sans', sans-serif;
    }
    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-1px);
    }


    .hero-visual {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .hero-code-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 2rem;
      width: 100%;
      max-width: 360px;
      font-family: 'Courier New', monospace;
      font-size: 0.85rem;
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }
    .hero-code-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--accent), transparent);
    }

    .code-dots {
      display: flex;
      gap: 6px;
      margin-bottom: 1.2rem;
    }
    .code-dots span {
      width: 10px; height: 10px;
      border-radius: 50%;
    }
    .code-dots .dot-red   { background: #ff5f57; }
    .code-dots .dot-yellow{ background: #febc2e; }
    .code-dots .dot-green { background: #28c840; }

    .code-line { margin-bottom: 0.3rem; }
    .code-keyword { color: var(--accent); }
    .code-string  { color: #e8a87c; }
    .code-comment { color: var(--text-muted); font-style: italic; }
    .code-var     { color: #82d9f0; }
    .code-indent  { padding-left: 1.5rem; }

    .dot-grid-hero {
      right: -30px;
      top: 20px;
    }

  
    .section-label {
      font-size: 0.8rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 0.5rem;
      display: block;
    }

    .section-title {
      font-size: clamp(1.8rem, 3.5vw, 2.4rem);
      font-weight: 800;
      letter-spacing: -0.025em;
      margin-bottom: 1rem;
    }

    .section-divider {
      border: none;
      border-top: 1px solid var(--border);
      margin: 0 0 3.5rem;
    }

    #skills .skills-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
    }

    .skill-chip {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      background: var(--bg-skill);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 0.6rem 1.1rem;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-primary);
      transition: all 0.2s;
      cursor: default;
    }
    .skill-chip:hover {
      border-color: var(--accent);
      transform: translateY(-2px);
      box-shadow: 0 4px 14px var(--accent-glow);
    }
    .skill-chip i {
      font-size: 1.1rem;
    }

  
    #experience .timeline {
      position: relative;
      padding-left: 2rem;
    }
    #experience .timeline::before {
      content: '';
      position: absolute;
      left: 0; top: 8px; bottom: 8px;
      width: 2px;
      background: var(--border);
    }

    .timeline-item {
      position: relative;
      margin-bottom: 2.5rem;
      padding-bottom: 0.5rem;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: -2.4rem; top: 6px;
      width: 10px; height: 10px;
      background: var(--accent);
      border-radius: 50%;
      border: 2px solid var(--bg);
      box-shadow: 0 0 0 3px var(--accent-glow);
    }

    .timeline-date {
      font-size: 0.8rem;
      color: var(--accent);
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      margin-bottom: 0.2rem;
    }

    .timeline-role {
      font-size: 1.1rem;
      font-weight: 700;
      font-family: 'Syne', sans-serif;
      margin-bottom: 0.15rem;
    }

    .timeline-company {
      font-size: 0.9rem;
      color: var(--text-secondary);
      margin-bottom: 0.6rem;
    }

    .timeline-desc {
      font-size: 0.92rem;
      color: var(--text-secondary);
      line-height: 1.65;
    }


    #projects .projects-grid {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }

    .project-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 1.5rem;
      display: block;
      text-decoration: none;
      color: inherit;
      transition: all 0.25s;
      cursor: pointer;
      user-select: none;
      -webkit-tap-highlight-color: transparent;
    }
    .slider-btn,
    .slider-dot {
      -webkit-tap-highlight-color: transparent;
    }
    .project-card:hover {
      border-color: var(--accent);
      background: var(--bg-card-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    }

    .project-icon {
      width: 80px; height: 80px;
      background: var(--bg-skill);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 1.6rem;
      flex-shrink: 0;
    }

    .project-info h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.35rem;
    }

    .project-desc-lines {
      display: flex;
      flex-direction: column;
      gap: 5px;
      margin-bottom: 0.9rem;
    }
    .project-desc-line {
      height: 7px;
      background: var(--border);
      border-radius: 4px;
    }
    .project-desc-line:first-child { width: 80%; }
    .project-desc-line:last-child  { width: 55%; }

    .project-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.4rem;
    }

    .tag {
      background: var(--tag-bg);
      border: 1px solid var(--tag-border);
      color: var(--tag-text);
      font-size: 0.78rem;
      padding: 0.25rem 0.65rem;
      border-radius: 6px;
      font-weight: 500;
    }

    .project-arrow {
      color: var(--text-muted);
      flex-shrink: 0;
      transition: all 0.2s;
      display: flex;
      align-items: center;
    }
    .project-card:hover .project-arrow {
      color: var(--accent);
      transform: translateX(3px);
    }

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

    .about-text p {
      color: var(--text-secondary);
      font-size: 1rem;
      line-height: 1.75;
      margin-bottom: 1.25rem;
    }

    .about-stats {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
    }

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 1.4rem 1.2rem;
      text-align: center;
    }
    .stat-number {
      font-family: 'Syne', sans-serif;
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--accent);
      display: block;
    }
    .stat-label {
      font-size: 0.85rem;
      color: var(--text-secondary);
      margin-top: 0.25rem;
    }

    #contact .contact-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 3rem;
      display: flex;
      align-items: center;
      gap: 2rem;
    }

    .contact-icon-wrap {
      width: 72px; height: 72px;
      flex-shrink: 0;
      background: var(--icon-circle-bg);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
    }

    .contact-text h3 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 0.4rem;
    }
    .contact-text p {
      color: var(--text-secondary);
      font-size: 0.95rem;
      margin-bottom: 1.25rem;
      line-height: 1.6;
    }


    footer {
      border-top: 1px solid var(--border);
      padding: 2.5rem 0 2rem;
    }

    .footer-inner {
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 2rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 1.25rem;
    }

    .footer-socials {
      display: flex;
      gap: 1rem;
    }

    .social-link {
      width: 40px; height: 40px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--bg-card);
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      transition: all 0.2s;
    }
    .social-link:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-2px);
    }

    .footer-copy {
      font-size: 0.82rem;
      color: var(--text-muted);
    }


    .scroll-top {
      position: fixed;
      bottom: 2rem; right: 2rem;
      width: 42px; height: 42px;
      background: var(--accent);
      color: #111;
      border: none;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;

      cursor: pointer;
      opacity: 0;
      transform: translateY(10px);
      transition: all 0.3s;
      z-index: 50;
    }
    .scroll-top.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .scroll-top:hover {
      background: var(--accent-dim);
    }

    .fade-in {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }
    .fade-in.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .progress-bar {
      position: fixed;
      top: 0; left: 0;
      height: 3px;
      background: var(--accent);
      z-index: 200;
      transition: width 0.1s;
    }

    .project-card {
      display: block;
      text-decoration: none;
      cursor: pointer;
      user-select: none;
    }

    .project-card-header {
      display: flex;
      align-items: center;
      gap: 1rem;
      width: 100%;
    }

    .project-arrow {
      margin-left: auto;
      flex-shrink: 0;
      padding: 6px;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }

    .project-arrow svg {
      transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
      transform: rotate(90deg);
    }

    .project-card.expanded .project-arrow svg {
      transform: rotate(270deg);
    }

    .project-github-link {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--accent, #7c6bff);
      text-decoration: none;
      width: fit-content;
      transition: opacity 0.2s;
      margin-top: 0.75rem;
      position: relative;
      z-index: 1;
    }

    .project-github-link:hover { opacity: 0.75; }
    .project-github-link i { font-size: 1rem; }

    .project-details {
      display: grid;
      grid-template-rows: 0fr;
      transition: grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .project-card.expanded .project-details {
      grid-template-rows: 1fr;
    }

    .project-details-inner { overflow: hidden; }

    .project-details-content {
      padding: 1rem 0 0.25rem 0;
      border-top: 1px solid rgba(255,255,255,0.07);
      margin-top: 0.75rem;
    }

    .project-details-body {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.25rem;
      align-items: start;
    }

    @media (max-width: 600px) {
      .project-details-body {
        grid-template-columns: 1fr;
      }
    }

    .project-details-text {
      display: flex;
      flex-direction: column;
      gap: 0.6rem;
      pointer-events: none;
    }

    .project-details-text p {
      margin: 0;
      font-size: 0.9rem;
      opacity: 0.75;
      line-height: 1.6;
    }

    .project-slider {
      position: relative;
      width: 100%;
      border-radius: 10px;
      overflow: hidden;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.07);
      pointer-events: all;
    }
    .project-slider-col {
      pointer-events: all;
    }

    .slider-track-wrapper {
      overflow: hidden;
      width: 100%;
    }

    .slider-track {
      display: flex;
      transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .slider-track img {
      flex: 0 0 100%;
      width: 100%;
      height: auto;
      display: block;
      object-fit: contain;
      pointer-events: none;
      max-height: 600px;
    }

    .slider-btn {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      background: rgba(0,0,0,0.55);
      border: 1px solid rgba(255,255,255,0.12);
      color: #fff;
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      z-index: 2;
      transition: background 0.2s;
      font-size: 0.7rem;
    }

    .slider-btn:hover { background: rgba(0,0,0,0.8); }
    .slider-btn.prev { left: 6px; }
    .slider-btn.next { right: 6px; }

    .slider-dots {
      display: flex;
      justify-content: center;
      gap: 6px;
      padding: 8px 0 4px;
    }

    .slider-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: rgba(255,255,255,0.25);
      cursor: pointer;
      transition: background 0.2s, transform 0.2s;
    }

    .slider-dot.active {
      background: var(--accent, #7c6bff);
      transform: scale(1.3);
    }

    .project-slider[data-count="1"] .slider-btn,
    .project-slider[data-count="1"] .slider-dots {
      display: none;
    }

    @media (max-width: 900px) {
      .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
      .hero-visual { display: none; }
      .about-grid  { grid-template-columns: 1fr; gap: 2.5rem; }
      .nav-links   { display: none; }
      .hamburger   { display: flex; }
    }

    @media (max-width: 640px) {
      main        { padding: 0 1.25rem; }
      section     { padding: 3.5rem 0; }
      #hero       { padding-top: 7rem; min-height: auto; padding-bottom: 3rem; }

      .project-card {
        grid-template-columns: 56px 1fr auto;
        gap: 0.9rem;
        padding: 1.1rem;
      }
      .project-icon { width: 56px; height: 56px; font-size: 1.2rem; }

      .contact-card { flex-direction: column; text-align: center; padding: 2rem 1.5rem; }

      .about-stats { grid-template-columns: 1fr 1fr; }

      .hero-name { font-size: 2.5rem; }
    }

    @media (max-width: 400px) {
      .hero-cta { flex-direction: column; }
      .btn-primary, .btn-outline { width: 100%; justify-content: center; }
    }