:root {
    --bg: #080c14;
    --bg2: #0d1422;
    --bg3: #111927;
    --border: rgba(255,255,255,0.07);
    --border-active: rgba(59,130,246,0.4);
    --blue: #3b82f6;
    --blue-dim: #1d4ed8;
    --cyan: #06b6d4;
    --white: #f0f4ff;
    --muted: #6b7fa3;
    --card-bg: rgba(13,20,34,0.8);
    --font-display: 'Syne', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'DM Mono', monospace;
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--white);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
  }

  /* ─── NOISE TEXTURE ─── */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
    opacity: 0.6;
  }

  /* ─── GRID BACKGROUND ─── */
  .grid-bg {
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
  }

  /* ─── GLOW BLOBS ─── */
  .glow-1 {
    position: fixed;
    top: -200px; right: -200px;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 70%);
    pointer-events: none; z-index: 0;
  }
  .glow-2 {
    position: fixed;
    bottom: -300px; left: -200px;
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(6,182,212,0.07) 0%, transparent 70%);
    pointer-events: none; z-index: 0;
  }

  /* ─── NAV ─── */
  nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 0 48px;
    height: 64px;
    display: flex; align-items: center; justify-content: space-between;
    background: rgba(8,12,20,0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
  }
  .nav-logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 18px;
    letter-spacing: -0.5px;
    color: var(--white);
    text-decoration: none;
  }
  .nav-logo span { color: var(--blue); }
  .nav-links { display: flex; gap: 36px; list-style: none; }
  .nav-links a {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.2s;
    position: relative;
  }
  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0; right: 0;
    height: 1px;
    background: var(--blue);
    transform: scaleX(0);
    transition: transform 0.2s;
  }
  .nav-links a:hover { color: var(--white); }
  .nav-links a:hover::after { transform: scaleX(1); }
  .nav-cta {
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 8px 20px;
    border: 1px solid var(--blue);
    color: var(--blue);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 0.2s;
  }
  .nav-cta:hover { background: var(--blue); color: var(--bg); }

  /* ─── SECTIONS ─── */
  section { position: relative; z-index: 1; }

  .container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 48px;
  }

  /* ─── HERO ─── */
  #hero {
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 100px 0 80px;
  }
  .hero-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 48px;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 80px;
    align-items: center;
  }
  .hero-tag {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--cyan);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 20px;
    display: flex; align-items: center; gap: 12px;
  }
  .hero-tag::before {
    content: '';
    width: 32px; height: 1px;
    background: var(--cyan);
  }
  h1 {
    font-family: var(--font-display);
    font-size: clamp(48px, 5vw, 72px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 24px;
  }
  h1 .accent { color: var(--blue); }
  .hero-sub {
    font-size: 18px;
    color: var(--muted);
    font-weight: 300;
    max-width: 480px;
    margin-bottom: 40px;
    line-height: 1.7;
  }
  .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 32px;
    background: var(--blue);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
  }
  .btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.1);
    transform: translateX(-100%);
    transition: transform 0.3s;
  }
  .btn-primary:hover::after { transform: translateX(0); }
  .btn-secondary {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 32px;
    border: 1px solid var(--border);
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.2s;
  }
  .btn-secondary:hover { border-color: var(--blue); color: var(--white); }

  /* Hero card */
  .hero-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 32px;
    position: relative;
    overflow: hidden;
  }
  .hero-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--blue), var(--cyan));
  }
  .hero-card-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 20px;
  }
  .stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
  .stat { }
  .stat-num {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 4px;
  }
  .stat-num span { color: var(--blue); font-size: 20px; }
  .stat-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .cert-badges { display: flex; flex-wrap: wrap; gap: 6px; }
  .badge {
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 4px 10px;
    border: 1px solid rgba(59,130,246,0.3);
    color: var(--blue);
    letter-spacing: 0.05em;
    background: rgba(59,130,246,0.05);
  }
  .badge.cyan {
    border-color: rgba(6,182,212,0.3);
    color: var(--cyan);
    background: rgba(6,182,212,0.05);
  }

  /* ─── SECTION HEADER ─── */
  .section-header {
    margin-bottom: 64px;
  }
  .section-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--blue);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 12px;
    display: flex; align-items: center; gap: 12px;
  }
  .section-tag::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--blue);
  }
  h2 {
    font-family: var(--font-display);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    letter-spacing: -1.5px;
    line-height: 1.1;
  }

  /* ─── ABOUT ─── */
  #about { padding: 120px 0; }
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
  }
  .about-text p {
    color: var(--muted);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 20px;
  }
  .about-text p strong { color: var(--white); font-weight: 500; }
  .about-highlights { display: flex; flex-direction: column; gap: 16px; margin-top: 32px; }
  .highlight-item {
    display: flex; align-items: center; gap: 16px;
    padding: 16px 20px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    transition: border-color 0.2s;
  }
  .highlight-item:hover { border-color: var(--border-active); }
  .highlight-icon {
    width: 36px; height: 36px;
    background: rgba(59,130,246,0.1);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
  }
  .highlight-text { font-size: 14px; color: var(--muted); }
  .highlight-text strong { color: var(--white); display: block; font-size: 15px; margin-bottom: 2px; }

  /* Soft skills */
  .soft-skills {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .soft-skill {
    padding: 20px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    transition: border-color 0.2s, transform 0.2s;
  }
  .soft-skill:hover { border-color: var(--border-active); transform: translateY(-2px); }
  .soft-skill-icon { font-size: 22px; margin-bottom: 10px; }
  .soft-skill h4 { font-family: var(--font-display); font-size: 14px; font-weight: 700; margin-bottom: 6px; }
  .soft-skill p { font-size: 13px; color: var(--muted); font-weight: 300; line-height: 1.5; }

  /* ─── EXPERIENCE ─── */
  #experience { padding: 120px 0; background: var(--bg2); }
  .exp-timeline { position: relative; padding-left: 32px; }
  .exp-timeline::before {
    content: '';
    position: absolute;
    top: 8px; left: 0; bottom: 8px;
    width: 1px;
    background: linear-gradient(to bottom, var(--blue), var(--cyan), transparent);
  }
  .exp-item {
    position: relative;
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--border);
  }
  .exp-item:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
  .exp-dot {
    position: absolute;
    left: -39px; top: 4px;
    width: 14px; height: 14px;
    border: 2px solid var(--blue);
    background: var(--bg);
    border-radius: 50%;
  }
  .exp-dot.active { background: var(--blue); box-shadow: 0 0 12px var(--blue); }
  .exp-meta {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 10px;
  }
  .exp-date {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--blue);
    letter-spacing: 0.1em;
    padding: 3px 10px;
    border: 1px solid rgba(59,130,246,0.3);
    background: rgba(59,130,246,0.05);
  }
  .exp-type {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
  }
  .exp-company {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 4px;
  }
  .exp-role {
    font-size: 14px;
    color: var(--cyan);
    font-weight: 400;
    margin-bottom: 16px;
    font-family: var(--font-mono);
  }
  .exp-desc {
    font-size: 14px;
    color: var(--muted);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 16px;
  }
  .exp-tags { display: flex; flex-wrap: wrap; gap: 6px; }
  .exp-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 3px 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    color: var(--muted);
    letter-spacing: 0.05em;
  }

  /* ─── SKILLS ─── */
  #skills { padding: 120px 0; }
  .skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .skill-card {
    padding: 28px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    transition: border-color 0.3s, transform 0.3s;
    position: relative;
    overflow: hidden;
  }
  .skill-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--blue), var(--cyan));
    transform: scaleX(0);
    transition: transform 0.3s;
    transform-origin: left;
  }
  .skill-card:hover { border-color: var(--border-active); transform: translateY(-4px); }
  .skill-card:hover::after { transform: scaleX(1); }
  .skill-card-icon {
    font-size: 28px;
    margin-bottom: 16px;
  }
  .skill-card h3 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
  }
  .skill-list { list-style: none; }
  .skill-list li {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--muted);
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 8px;
    letter-spacing: 0.03em;
  }
  .skill-list li:last-child { border-bottom: none; }
  .skill-list li::before {
    content: '▸';
    color: var(--blue);
    font-size: 10px;
  }

  /* ─── CERTIFICATIONS ─── */
  #certifications { padding: 120px 0; background: var(--bg2); }
  .cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .cert-card {
    padding: 24px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    display: flex; flex-direction: column;
    transition: border-color 0.2s, transform 0.2s;
    position: relative;
    overflow: hidden;
  }
  .cert-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 3px; height: 100%;
    background: var(--blue);
    opacity: 0;
    transition: opacity 0.2s;
  }
  .cert-card:hover { border-color: var(--border-active); transform: translateX(4px); }
  .cert-card:hover::before { opacity: 1; }
  .cert-code {
    font-family: var(--font-mono);
    font-size: 22px;
    font-weight: 500;
    color: var(--blue);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
  }
  .cert-name {
    font-size: 13px;
    color: var(--white);
    font-weight: 500;
    margin-bottom: 6px;
    line-height: 1.4;
  }
  .cert-issuer {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--muted);
    margin-top: auto;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  /* ─── PROJECTS ─── */
  #projects { padding: 120px 0; }
  .projects-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .project-card {
    padding: 32px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    transition: border-color 0.3s, transform 0.3s;
    position: relative;
    overflow: hidden;
  }
  .project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--blue), transparent);
    opacity: 0;
    transition: opacity 0.3s;
  }
  .project-card:hover { border-color: var(--border-active); transform: translateY(-4px); }
  .project-card:hover::before { opacity: 1; }
  .project-num {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
    margin-bottom: 16px;
  }
  .project-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
    line-height: 1.2;
  }
  .project-desc {
    font-size: 14px;
    color: var(--muted);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 20px;
  }
  .project-stack { display: flex; flex-wrap: wrap; gap: 6px; }
  .stack-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 3px 8px;
    border: 1px solid rgba(6,182,212,0.3);
    color: var(--cyan);
    background: rgba(6,182,212,0.05);
    letter-spacing: 0.05em;
  }

  /* ─── CONTACT ─── */
  #contact { padding: 120px 0; background: var(--bg2); }
  .contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
  }
  .contact-info h2 { margin-bottom: 16px; }
  .contact-info p {
    color: var(--muted);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 40px;
  }
  .contact-links { display: flex; flex-direction: column; gap: 12px; }
  .contact-link {
    display: flex; align-items: center; gap: 16px;
    padding: 16px 20px;
    border: 1px solid var(--border);
    text-decoration: none;
    transition: border-color 0.2s, background 0.2s;
    color: var(--white);
  }
  .contact-link:hover { border-color: var(--border-active); background: rgba(59,130,246,0.05); }
  .contact-link-icon {
    width: 36px; height: 36px;
    background: rgba(59,130,246,0.1);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
  }
  .contact-link-text { font-size: 14px; color: var(--muted); }
  .contact-link-text strong { color: var(--white); display: block; font-size: 15px; }

  /* Contact form */
  .contact-form { display: flex; flex-direction: column; gap: 16px; }
  .form-group { display: flex; flex-direction: column; gap: 6px; }
  .form-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .form-input, .form-textarea {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    color: var(--white);
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
    resize: none;
  }
  .form-input:focus, .form-textarea:focus { border-color: var(--blue); }
  .form-textarea { min-height: 120px; }
  .form-submit {
    align-self: flex-start;
    padding: 14px 36px;
    background: var(--blue);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
  }
  .form-submit:hover { background: var(--blue-dim); }

  /* ─── FOOTER ─── */
  footer {
    padding: 32px 48px;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    position: relative; z-index: 1;
  }
  .footer-copy {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.05em;
  }
  .footer-links { display: flex; gap: 24px; }
  .footer-links a {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: color 0.2s;
  }
  .footer-links a:hover { color: var(--blue); }

  /* ─── SCROLL REVEAL ─── */
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 900px) {
    nav { padding: 0 24px; }
    .nav-links { display: none; }
    .hero-inner { grid-template-columns: 1fr; gap: 48px; padding: 0 24px; }
    .hero-card { display: none; }
    .container { padding: 0 24px; }
    .about-grid, .contact-inner { grid-template-columns: 1fr; gap: 48px; }
    .skills-grid { grid-template-columns: 1fr 1fr; }
    .cert-grid { grid-template-columns: 1fr 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .soft-skills { grid-template-columns: 1fr; }
    footer { flex-direction: column; gap: 16px; text-align: center; }
  }

  /* ─── CURSOR GLOW ─── */
  .cursor-glow {
    position: fixed;
    width: 300px; height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59,130,246,0.06) 0%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 1;
    transition: transform 0.1s linear;
  }