:root {
    --bg: #0a0d10;
    --surface: #111418;
    --surface2: #181c22;
    --border: #1e242d;
    --accent: #00e5a0;
    --accent2: #0af;
    --muted: #4a5568;
    --text: #e2e8f0;
    --text2: #8896a8;
    --mono: 'Space Mono', monospace;
    --display: 'Syne', sans-serif;
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--display);
    overflow-x: hidden;
    line-height: 1.6;
  }

  /* GRID OVERLAY */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(rgba(0,229,160,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,229,160,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
  }

  /* NAV */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 4rem;
    background: rgba(10,13,16,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }

  .nav-logo {
    font-family: var(--mono);
    font-size: 15px;
    color: var(--accent);
    letter-spacing: 0.1em;
  }

  .nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
  }

  .nav-links a {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text2);
    text-decoration: none;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: color 0.2s;
  }

  .nav-links a:hover { color: var(--accent); }

  /* HERO */
  .hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8rem 4rem 4rem;
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
  }

  .hero-eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .hero-eyebrow::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 1px;
    background: var(--accent);
  }

  .hero-name {
    font-size: clamp(2.5rem, 8vw, 7rem);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.03em;
    color: #fff;
    margin-bottom: 1rem;
  }

  .hero-name span {
    color: var(--accent);
    display: block;
  }

  .hero-role {
    font-family: var(--mono);
    font-size: 1.2rem;
    color: var(--text2);
    margin-bottom: 2.5rem;
    min-width: 50vw;
    line-height: 1.8;
  }

  .hero-role em {
    color: var(--accent2);
    font-style: normal;
  }

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

  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    background: var(--accent);
    color: #000;
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.2s;
  }

  .btn-primary:hover { opacity: 0.85; transform: translateY(-1px); }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    background: transparent;
    color: var(--text);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
  }

  .btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

  /* STATS BAR */
  .stats-bar {
    position: relative;
    z-index: 1;
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 2rem 4rem;
  }

  .stats-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }

  .stat {
    border-left: 2px solid var(--accent);
    padding-left: 1.25rem;
  }

  .stat-num {
    font-size: 2.25rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    margin-bottom: 0.25rem;
  }

  .stat-num span { color: var(--accent); }

  .stat-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text2);
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  /* SECTION */
  section {
    position: relative;
    z-index: 1;
    padding: 6rem 4rem;
    max-width: 1400px;
    margin: 0 auto;
  }

  .section-tag {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .section-tag::before {
    content: '//';
    opacity: 0.5;
  }

  .section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    margin-bottom: 3rem;
    line-height: 1.1;
  }

  /* SKILLS */
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5px;
    background: var(--border);
    border: 1px solid var(--border);
  }

  .skill-card {
    background: var(--surface);
    padding: 2rem;
    transition: background 0.2s;
  }

  .skill-card:hover { background: var(--surface2); }

  .skill-icon {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
  }

  .skill-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.75rem;
  }

  .skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .tag {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text2);
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 0.25rem 0.625rem;
    letter-spacing: 0.05em;
  }

  .tag.accent {
    color: var(--accent);
    border-color: rgba(0,229,160,0.25);
    background: rgba(0,229,160,0.05);
  }

  /* PROJECTS */
  .projects-list {
    display: flex;
    flex-direction: column;
    gap: 1.5px;
    background: var(--border);
    border: 1px solid var(--border);
  }

  .project-card {
    background: var(--surface);
    padding: 2.5rem;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-start: start;
    transition: background 0.2s;
  }

  .project-card:hover { background: var(--surface2); }

  .project-num {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
  }

  .project-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
  }

  .project-desc {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text2);
    line-height: 1.8;
    max-width: 600px;
    margin-bottom: 1.5rem;
  }

  .project-metrics {
    display: flex;
    gap: 2rem;
  }

  .metric {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
  }

  .metric-val {
    font-family: var(--mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
  }

  .metric-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 0.05em;
  }

  .project-stack {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    /* gap: 0.5rem; */
    align-self: start;
    padding-top: 2rem;
  }

  /* EXPERIENCE */
  .timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-left: 1px solid var(--border);
    margin-left: 1rem;
    padding-left: 3rem;
  }

  .timeline-item {
    padding-bottom: 3rem;
    position: relative;
  }

  .timeline-item::before {
    content: '';
    position: absolute;
    left: -3.375rem;
    top: 0.4rem;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border: 2px solid var(--bg);
    outline: 1px solid var(--accent);
  }

  .timeline-period {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
  }

  .timeline-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.25rem;
  }

  .timeline-company {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text2);
    margin-bottom: 1rem;
  }

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

  .timeline-bullets li {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text2);
    line-height: 1.8;
    padding-left: 1.25rem;
    position: relative;
    margin-bottom: 0.5rem;
  }

  .timeline-bullets li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 10px;
  }

  /* CONTACT */
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
  }

  .contact-intro {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--text2);
    line-height: 1.9;
    margin-bottom: 2rem;
  }

  .contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.2s, color 0.2s, background 0.2s;
  }

  .contact-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(0,229,160,0.04);
  }

  .contact-link-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    flex: 1;
  }

  .contact-link-arrow {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--muted);
    transition: color 0.2s, transform 0.2s;
  }

  .contact-link:hover .contact-link-arrow {
    color: var(--accent);
    transform: translateX(4px);
  }

  /* DIVIDER */
  .divider {
    border: none;
    border-top: 1px solid var(--border);
    width: 100%;
    position: relative;
    z-index: 1;
  }

  /* FOOTER */
  footer {
    position: relative;
    z-index: 1;
    padding: 2rem 4rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
  }

  .footer-copy {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 0.08em;
  }

  .footer-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.08em;
  }

  .footer-status::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }

  /* TERMINAL BLOCK */
  .terminal {
    background: #050709;
    border: 1px solid var(--border);
    padding: 1.5rem 2rem;
    font-family: var(--mono);
    font-size: 15px;
    color: var(--text2);
    line-height: 2;
  }

  .terminal-line { display: flex; gap: 0.75rem; }
  .t-prompt { color: var(--accent); }
  .t-cmd { color: #fff; }
  .t-out { color: var(--text2); }
  .t-ok { color: var(--accent); }
  .t-warn { color: #f6b93b; }

  /* CERTIFICATIONS */
  .certs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-top: 2rem;
  }

  .cert-card {
    background: var(--surface);
    padding: 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .cert-issuer {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
  }

  .cert-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.3;
  }

  .cert-year {
    font-family: var(--mono);
    font-size: 1rem;
    color: var(--muted);
  }

  /* ABOUT */
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }

  .about-text p {
    font-family: var(--mono);
    font-size: 1.1rem;
    color: var(--text2);
    line-height: 2;
    margin-bottom: 1rem;
  }

  .about-text p em {
    color: var(--accent);
    font-style: normal;
  }

  @media (max-width: 900px) {
    nav { padding: 1rem 1.5rem; }
    nav .nav-links { display: none; }
    .hero { padding: 6rem 1.5rem 3rem; }
    section { padding: 4rem 1.5rem; }
    .stats-bar { padding: 2rem 1.5rem; }
    .stats-inner { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: 1fr; }
    .project-card { grid-template-columns: 1fr; }
    .project-stack { flex-direction: row; align-items: flex-start; padding-top: 0; }
    .contact-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    footer { padding: 1.5rem; flex-direction: column; gap: 0.75rem; text-align: center; }
  }