:root {
      --bg:        #080c10;
      --bg2:       #0d1117;
      --panel:     #111820;
      --border:    #1e2d3d;
      --green:     #00ff87;
      --cyan:      #00d4ff;
      --red:       #ff4560;
      --text:      #c9d1d9;
      --muted:     #6e8098;
      --mono:      'Share Tech Mono', monospace;
      --sans:      '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(--sans);
      font-size: 16px;
      line-height: 1.7;
      overflow-x: hidden;
    }

    /* ── Grid overlay ── */
    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background-image:
        linear-gradient(rgba(0,255,135,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,255,135,.025) 1px, transparent 1px);
      background-size: 40px 40px;
      pointer-events: none;
      z-index: 0;
    }

    /* ── Nav ── */
    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      background: rgba(8,12,16,.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      padding: 0 2.5rem;
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-logo {
      font-family: var(--mono);
      font-size: .9rem;
      color: var(--green);
      letter-spacing: .08em;
    }

    .nav-logo span { color: var(--muted); }

    nav ul {
      display: flex;
      gap: 2rem;
      list-style: none;
    }

    nav ul a {
      font-family: var(--mono);
      font-size: .78rem;
      color: var(--muted);
      text-decoration: none;
      letter-spacing: .1em;
      text-transform: uppercase;
      transition: color .2s;
      position: relative;
    }

    nav ul a::after {
      content: '';
      position: absolute;
      bottom: -3px; left: 0; right: 0;
      height: 1px;
      background: var(--green);
      transform: scaleX(0);
      transition: transform .2s;
    }

    nav ul a:hover { color: var(--green); }
    nav ul a:hover::after { transform: scaleX(1); }

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

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

    .section-label {
      font-family: var(--mono);
      font-size: .72rem;
      color: var(--green);
      letter-spacing: .25em;
      text-transform: uppercase;
      margin-bottom: .75rem;
    }

    h2.section-title {
      font-size: 2rem;
      font-weight: 800;
      color: #e6edf3;
      margin-bottom: 2.5rem;
    }

    /* ── Hero ── */
    #about {
      min-height: 100vh;
      display: flex;
      align-items: center;
      padding: 6rem 0 4rem;
      border-bottom: 1px solid var(--border);
    }

    .hero-inner {
      display: grid;
      grid-template-columns: 1fr 360px;
      gap: 4rem;
      align-items: center;
    }

    .hero-tag {
      display: inline-block;
      font-family: var(--mono);
      font-size: .72rem;
      color: var(--green);
      border: 1px solid var(--green);
      padding: .2rem .7rem;
      border-radius: 2px;
      letter-spacing: .15em;
      margin-bottom: 1.25rem;
      animation: fadeUp .6s ease both;
    }

    .hero-name {
      font-size: clamp(2.4rem, 5vw, 3.8rem);
      font-weight: 800;
      color: #e6edf3;
      line-height: 1.1;
      animation: fadeUp .6s .1s ease both;
    }

    .hero-name .accent { color: var(--green); }

    .hero-sub {
      font-family: var(--mono);
      font-size: 1rem;
      color: var(--cyan);
      margin: .8rem 0 1.4rem;
      animation: fadeUp .6s .2s ease both;
    }

    .hero-desc {
      color: var(--muted);
      max-width: 540px;
      font-size: .95rem;
      animation: fadeUp .6s .3s ease both;
    }

    .hero-cta {
      margin-top: 2rem;
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      animation: fadeUp .6s .4s ease both;
    }

    .btn {
      font-family: var(--mono);
      font-size: .78rem;
      letter-spacing: .1em;
      text-transform: uppercase;
      padding: .65rem 1.4rem;
      border-radius: 3px;
      text-decoration: none;
      transition: all .2s;
      cursor: pointer;
    }

    .btn-primary {
      background: var(--green);
      color: #080c10;
      border: 1px solid var(--green);
    }

    .btn-primary:hover { background: transparent; color: var(--green); }

    .btn-ghost {
      background: transparent;
      color: var(--cyan);
      border: 1px solid var(--cyan);
    }

    .btn-ghost:hover { background: rgba(0,212,255,.08); }

    /* ── Photo Placeholder ── */
    .hero-photo {
      position: relative;
      animation: fadeUp .6s .2s ease both;
    }

    .photo-frame {
      width: 100%;
      aspect-ratio: 3/4;
      border: 1px solid var(--border);
      border-radius: 6px;
      background: var(--panel);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: .75rem;
      position: relative;
      overflow: hidden;
    }

    .photo-frame::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        linear-gradient(135deg, rgba(0,255,135,.04) 0%, transparent 60%),
        linear-gradient(315deg, rgba(0,212,255,.04) 0%, transparent 60%);
    }

    .photo-frame .corner {
      position: absolute;
      width: 18px; height: 18px;
      border-color: var(--green);
      border-style: solid;
    }

    .corner.tl { top: 10px; left: 10px; border-width: 2px 0 0 2px; }
    .corner.tr { top: 10px; right: 10px; border-width: 2px 2px 0 0; }
    .corner.bl { bottom: 10px; left: 10px; border-width: 0 0 2px 2px; }
    .corner.br { bottom: 10px; right: 10px; border-width: 0 2px 2px 0; }

    .photo-icon {
      font-size: 3.5rem;
      line-height: 1;
      filter: grayscale(1) opacity(.35);
    }

    .photo-label {
      font-family: var(--mono);
      font-size: .7rem;
      color: var(--muted);
      letter-spacing: .15em;
    }

    .photo-frame img {
      width: 100%; height: 100%;
      object-fit: cover;
      position: absolute;
      inset: 0;
      border-radius: 6px;
    }

    .status-dot {
      position: absolute;
      bottom: 18px; right: 18px;
      display: flex;
      align-items: center;
      gap: .4rem;
      font-family: var(--mono);
      font-size: .65rem;
      color: var(--green);
    }

    .status-dot::before {
      content: '';
      width: 7px; height: 7px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 8px var(--green);
      animation: pulse 2s ease-in-out infinite;
    }

    /* ── Experience ── */
    #experiences {
      padding: 5rem 0;
      border-bottom: 1px solid var(--border);
    }

    .exp-card {
      background: var(--panel);
      border: 1px solid var(--border);
      border-left: 3px solid var(--cyan);
      border-radius: 4px;
      padding: 1.5rem 1.75rem;
      margin-bottom: 1.25rem;
      transition: border-color .2s, box-shadow .2s;
    }

    .exp-card:hover {
      border-color: var(--cyan);
      box-shadow: 0 0 20px rgba(0,212,255,.06);
    }

    .exp-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      flex-wrap: wrap;
      gap: .5rem;
      margin-bottom: .5rem;
    }

    .exp-title { font-size: 1.05rem; font-weight: 700; color: #e6edf3; }
    .exp-company { color: var(--cyan); font-weight: 600; font-size: .9rem; }
    .exp-date {
      font-family: var(--mono);
      font-size: .72rem;
      color: var(--muted);
      letter-spacing: .08em;
    }

    .exp-bullets {
      margin-top: .75rem;
      padding-left: 1rem;
      color: var(--muted);
      font-size: .9rem;
    }

    .exp-bullets li { margin-bottom: .35rem; }

    /* ── Projects ── */
    #projects {
      padding: 5rem 0;
      border-bottom: 1px solid var(--border);
    }

    .projects-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 1.25rem;
    }

    .project-card {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: 6px;
      padding: 1.5rem;
      transition: transform .2s, box-shadow .2s, border-color .2s;
      position: relative;
      overflow: hidden;
    }

    .project-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--green), var(--cyan));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .3s;
    }

    .project-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(0,0,0,.4);
      border-color: #2a3d50;
    }

    .project-card:hover::before { transform: scaleX(1); }

    .project-icon {
      font-size: 1.5rem;
      margin-bottom: .75rem;
    }

    .project-name {
      font-size: 1rem;
      font-weight: 700;
      color: #e6edf3;
      margin-bottom: .4rem;
    }

    .project-stack {
      font-family: var(--mono);
      font-size: .68rem;
      color: var(--green);
      letter-spacing: .08em;
      margin-bottom: .75rem;
    }

    .project-desc {
      color: var(--muted);
      font-size: .87rem;
      line-height: 1.6;
    }

    .project-bullets {
      margin-top: .75rem;
      padding-left: 1rem;
      color: var(--muted);
      font-size: .85rem;
    }

    .project-bullets li { margin-bottom: .3rem; }

    /* ── Skills ── */
    #skills {
      padding: 5rem 0;
      border-bottom: 1px solid var(--border);
    }

    .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1.5rem;
    }

    .skill-group h3 {
      font-family: var(--mono);
      font-size: .75rem;
      color: var(--cyan);
      letter-spacing: .2em;
      text-transform: uppercase;
      margin-bottom: 1rem;
      padding-bottom: .5rem;
      border-bottom: 1px solid var(--border);
    }

    .skill-tags {
      display: flex;
      flex-wrap: wrap;
      gap: .5rem;
    }

    .tag {
      font-family: var(--mono);
      font-size: .72rem;
      background: rgba(0,255,135,.06);
      border: 1px solid rgba(0,255,135,.2);
      color: var(--green);
      padding: .3rem .65rem;
      border-radius: 3px;
      letter-spacing: .05em;
    }

    .tag.blue {
      background: rgba(0,212,255,.06);
      border-color: rgba(0,212,255,.2);
      color: var(--cyan);
    }

    .tag.red {
      background: rgba(255,69,96,.06);
      border-color: rgba(255,69,96,.2);
      color: var(--red);
    }

    /* ── Certifications ── */
    #certifications {
      padding: 5rem 0;
      border-bottom: 1px solid var(--border);
    }

    .certs-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .cert-card {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: 5px;
      padding: 1rem 1.25rem;
      display: flex;
      align-items: center;
      gap: .75rem;
      transition: border-color .2s, box-shadow .2s;
    }

    .cert-card:hover {
      border-color: var(--green);
      box-shadow: 0 0 16px rgba(0,255,135,.08);
    }

    .cert-badge {
      font-size: 1.5rem;
    }

    .cert-name {
      font-weight: 700;
      font-size: .92rem;
      color: #e6edf3;
    }

    .cert-issuer {
      font-family: var(--mono);
      font-size: .68rem;
      color: var(--muted);
      margin-top: .1rem;
    }

    /* ── Contact ── */
    #contact {
      padding: 5rem 0 6rem;
    }

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

    .contact-blurb h2 {
      font-size: 2rem;
      font-weight: 800;
      color: #e6edf3;
      margin-bottom: .75rem;
    }

    .contact-blurb p {
      color: var(--muted);
      font-size: .95rem;
      max-width: 380px;
    }

    .contact-links {
      display: flex;
      flex-direction: column;
      gap: .75rem;
      margin-top: 1.5rem;
    }

    .contact-link {
      display: flex;
      align-items: center;
      gap: .75rem;
      font-family: var(--mono);
      font-size: .85rem;
      color: var(--text);
      text-decoration: none;
      padding: .9rem 1.1rem;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: 4px;
      transition: all .2s;
    }

    .contact-link:hover {
      border-color: var(--green);
      color: var(--green);
      box-shadow: 0 0 14px rgba(0,255,135,.07);
    }

    .contact-link .icon { font-size: 1rem; }

    .contact-terminal {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: 6px;
      overflow: hidden;
    }

    .terminal-bar {
      background: #0d1117;
      padding: .6rem 1rem;
      display: flex;
      align-items: center;
      gap: .4rem;
      border-bottom: 1px solid var(--border);
    }

    .dot { width: 10px; height: 10px; border-radius: 50%; }
    .dot.r { background: #ff5f57; }
    .dot.y { background: #febc2e; }
    .dot.g { background: #28c840; }

    .terminal-body {
      padding: 1.25rem 1.25rem 1.5rem;
      font-family: var(--mono);
      font-size: .8rem;
      line-height: 1.8;
    }

    .t-prompt { color: var(--green); }
    .t-cmd { color: var(--text); }
    .t-out { color: var(--muted); }
    .t-hl { color: var(--cyan); }
    .t-cursor {
      display: inline-block;
      width: 8px; height: 14px;
      background: var(--green);
      vertical-align: text-bottom;
      animation: blink 1s step-end infinite;
    }

    /* ── Footer ── */
    footer {
      border-top: 1px solid var(--border);
      padding: 1.5rem 2rem;
      text-align: center;
      font-family: var(--mono);
      font-size: .7rem;
      color: var(--muted);
    }

    /* ── Animations ── */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(20px); }
      to   { opacity: 1; transform: translateY(0); }
    }

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

    @keyframes pulse {
      0%, 100% { box-shadow: 0 0 6px var(--green); }
      50%       { box-shadow: 0 0 14px var(--green); }
    }

    /* ── Responsive ── */
    @media (max-width: 768px) {
      .hero-inner { grid-template-columns: 1fr; }
      .hero-photo { max-width: 260px; margin: 0 auto; }
      .contact-inner { grid-template-columns: 1fr; }
      nav ul { gap: 1rem; }
    }