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

  :root {
    --bg: #0a0e0a;
    --bg2: #0f1510;
    --bg3: #141c14;
    --green: #4eff91;
    --green-dim: #2ab55a;
    --green-muted: #1a3d26;
    --text: #e8f5ea;
    --text-muted: #7a9c82;
    --text-dim: #4a6652;
    --border: #1e3326;
    --border-bright: #2d5040;
    --amber: #ffc56a;
    --blue: #6ab4ff;
  }

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
  }

  /* ── SCROLL REVEAL ── */
  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
  .reveal-delay-5 { transition-delay: 0.5s; }
  .reveal-delay-6 { transition-delay: 0.6s; }

  /* ── NAV ── */
  nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 10, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 52px;
    animation: slideDown 0.5s ease both;
  }
  @keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to   { transform: translateY(0);     opacity: 1; }
  }
  .nav-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--green);
    letter-spacing: 0.05em;
  }
  .nav-logo span { color: var(--text-muted); }
  .nav-links { display: flex; gap: 1.5rem; }
  .nav-links a {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-muted);
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: color 0.2s;
    position: relative;
  }
  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0;
    width: 0; height: 1px;
    background: var(--green);
    transition: width 0.25s ease;
  }
  .nav-links a:hover { color: var(--green); }
  .nav-links a:hover::after { width: 100%; }

  /* ── HERO ── */
  .hero {
    min-height: calc(100vh - 52px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 4rem 2rem;
    position: relative;
    overflow: hidden;
  }

  /* animated grid */
  .grid-bg {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(78,255,145,0.045) 1px, transparent 1px),
      linear-gradient(90deg, rgba(78,255,145,0.045) 1px, transparent 1px);
    background-size: 32px 32px;
    animation: gridDrift 20s linear infinite;
    pointer-events: none;
  }
  @keyframes gridDrift {
    from { background-position: 0 0; }
    to   { background-position: 32px 32px; }
  }

  /* green glow orb */
  .hero::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(78,255,145,0.07) 0%, transparent 70%);
    top: -100px; left: -100px;
    pointer-events: none;
    animation: orbFloat 8s ease-in-out infinite;
  }
  @keyframes orbFloat {
    0%, 100% { transform: translate(0,0); }
    50%       { transform: translate(40px, 30px); }
  }

  .hero-eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--green);
    letter-spacing: 0.15em;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: fadeUp 0.6s ease both 0.1s;
  }
  .hero-eyebrow::before {
    content: '';
    display: inline-block;
    width: 24px; height: 1px;
    background: var(--green);
  }

  .hero-name {
    font-size: clamp(48px, 8vw, 88px);
    font-weight: 700;
    line-height: 0.95;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    color: var(--text);
    animation: fadeUp 0.6s ease both 0.2s;
  }
  .hero-name .accent { color: var(--green); }

  .hero-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(13px, 2vw, 16px);
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 560px;
    animation: fadeUp 0.6s ease both 0.35s;
  }
  .hero-title .tag {
    display: inline-block;
    background: var(--green-muted);
    color: var(--green);
    border: 1px solid var(--green-dim);
    border-radius: 3px;
    padding: 1px 6px;
    font-size: 11px;
    margin-right: 4px;
    vertical-align: middle;
  }

  .hero-cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    animation: fadeUp 0.6s ease both 0.65s;
  }
  .btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    letter-spacing: 0.08em;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: none;
  }
  .btn-primary {
    background: var(--green);
    color: #0a0e0a;
    font-weight: 700;
    position: relative;
    overflow: hidden;
  }
  .btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.15);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  .btn-primary:hover::after { transform: translateX(0); }
  .btn-primary:hover { transform: translateY(-2px); }
  .btn-outline {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-bright);
  }
  .btn-outline:hover { color: var(--green); border-color: var(--green-dim); transform: translateY(-2px); }

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

  /* ── SECTIONS ── */
  .section-wrap {
    max-width: 960px;
    margin: 0 auto;
    padding: 5rem 2rem;
  }
  .section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--green);
    letter-spacing: 0.2em;
    margin-bottom: 0.5rem;
  }
  .section-title {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 3rem;
    color: var(--text);
  }
  .divider { border: none; border-top: 1px solid var(--border); margin: 0; }

  /* ── TERMINAL ── */
  .terminal {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
  }
  .terminal-bar {
    background: var(--bg3);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid var(--border);
  }
  .dot { width: 10px; height: 10px; border-radius: 50%; }
  .dot-red { background: #ff5f57; }
  .dot-yellow { background: #febc2e; }
  .dot-green-mac { background: #28c840; }
  .terminal-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 8px;
  }
  .terminal-body { padding: 1.5rem; }
  .t-line {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 2;
    color: var(--text-muted);
    opacity: 0;
    animation: typeIn 0.01s ease forwards;
  }
  .t-line .prompt { color: var(--green); }
  .t-line .cmd { color: var(--text); }
  .t-line .val { color: var(--amber); }
  .t-line .comment { color: var(--text-dim); }
  .t-line .string { color: var(--blue); }

  /* staggered terminal lines — triggered when terminal is visible */
  .terminal.visible .t-line { animation: fadeUp 0.3s ease forwards; }
  .terminal.visible .t-line:nth-child(1)  { animation-delay: 0.05s; }
  .terminal.visible .t-line:nth-child(2)  { animation-delay: 0.15s; }
  .terminal.visible .t-line:nth-child(3)  { animation-delay: 0.35s; }
  .terminal.visible .t-line:nth-child(4)  { animation-delay: 0.45s; }
  .terminal.visible .t-line:nth-child(5)  { animation-delay: 0.55s; }
  .terminal.visible .t-line:nth-child(6)  { animation-delay: 0.7s; }
  .terminal.visible .t-line:nth-child(7)  { animation-delay: 0.8s; }
  .terminal.visible .t-line:nth-child(8)  { animation-delay: 0.9s; }
  .terminal.visible .t-line:nth-child(9)  { animation-delay: 1.0s; }
  .terminal.visible .t-line:nth-child(10) { animation-delay: 1.1s; }
  .terminal.visible .t-line:nth-child(11) { animation-delay: 1.2s; }
  .terminal.visible .t-line:nth-child(12) { animation-delay: 1.35s; }

  /* ── PROJECTS ── */
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
  }
  .project-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
    cursor: pointer;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    color: inherit;
    position: relative;
    overflow: hidden;
  }
  /* shimmer sweep on hover */
  .project-card::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 60%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(78,255,145,0.04), transparent);
    transition: left 0.5s ease;
  }
  .project-card:hover::before { left: 150%; }
  .project-card:hover {
    border-color: var(--green-dim);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(78,255,145,0.07);
  }
  .project-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
  }
  .project-name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 500;
    color: var(--green);
  }
  .project-stars {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--amber);
    white-space: nowrap;
  }
  .project-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    flex: 1;
  }
  .project-lang {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 5px;
  }
  .lang-dot { width: 8px; height: 8px; border-radius: 50%; }
  .lang-kotlin  { background: #A97BFF; }
  .lang-jupyter { background: #DA5B0B; }
  .lang-js      { background: #F0DB4F; }

  /* ── RESEARCH ── */
  .research-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    align-items: start;
    transition: background 0.2s;
  }
  .research-item:last-child { border-bottom: none; }
  .research-item:hover { background: rgba(78,255,145,0.02); }
  .research-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--green-dim);
    padding-top: 3px;
  }
  .research-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
  }
  .research-meta {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }
  .research-badge {
    background: var(--green-muted);
    color: var(--green);
    border: 1px solid rgba(78,255,145,0.2);
    border-radius: 3px;
    padding: 1px 6px;
    font-size: 10px;
  }

  /* ── SKILLS ── */
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
  }
  .skill-group {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
    transition: border-color 0.2s, transform 0.2s;
  }
  .skill-group:hover { border-color: var(--border-bright); transform: translateY(-2px); }
  .skill-group-name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--green);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
  }
  .skill-tags { display: flex; flex-wrap: wrap; gap: 6px; }
  .skill-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 3px 8px;
    transition: color 0.2s, border-color 0.2s;
  }
  .skill-tag:hover { color: var(--green); border-color: var(--green-dim); }

  /* ── EXPERIENCE ── */
  .exp-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-left: 3px solid var(--green-dim);
    border-radius: 0 8px 8px 0;
    padding: 1.25rem;
    margin-bottom: 1rem;
    transition: border-left-color 0.2s, transform 0.2s;
  }
  .exp-card:hover { border-left-color: var(--green); transform: translateX(4px); }
  .exp-role { font-size: 16px; font-weight: 600; color: var(--text); }
  .exp-company { font-size: 14px; color: var(--green); margin: 4px 0 2px; }
  .exp-date {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 10px;
  }
  .exp-bullets { list-style: none; padding: 0; }
  .exp-bullets li {
    font-size: 13px;
    color: var(--text-muted);
    padding: 3px 0 3px 14px;
    position: relative;
  }
  .exp-bullets li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--green-dim);
    font-size: 10px;
    transition: color 0.2s;
  }
  .exp-card:hover .exp-bullets li::before { color: var(--green); }

  /* ── CONTACT ── */
  .contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
  }
  .contact-link {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    color: inherit;
    position: relative;
    overflow: hidden;
  }
  .contact-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--green);
    transition: width 0.3s ease;
  }
  .contact-link:hover::after { width: 100%; }
  .contact-link:hover {
    border-color: var(--green-dim);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(78,255,145,0.06);
  }
  .contact-icon { font-size: 20px; color: var(--green); }
  .contact-platform {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
  }
  .contact-value { font-size: 11px; color: var(--text-muted); font-weight: 500; }

  /* ── FOOTER ── */
  footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
  }
  footer .green { color: var(--green); }

  /* ── CURSOR ── */
  @keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
  .cursor { animation: blink 1.2s infinite; color: var(--green); }

  /* ── COUNTER ── */
  .count-up { display: inline-block; }

  /* ── PROGRESS BAR (skill fill) ── */
  @keyframes barGrow {
    from { width: 0; }
  }
  /* ── NEURAL CANVAS ── */
  #neural-canvas {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.65;
  }

  /* ── HERO TWO-COLUMN LAYOUT ── */
  .hero-inner {
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    pointer-events: none;
  }
  .hero-left  { pointer-events: auto; }
  .hero-right { pointer-events: auto; }

  @media (max-width: 768px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-right { display: none; }
  }

  /* ── TYPEWRITER ── */
  .hero-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(13px, 2vw, 15px);
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    animation: fadeUp 0.6s ease both 0.35s;
    min-height: 2.2em;
  }
  .typewriter-text { color: var(--green); }
  .typewriter-cursor {
    color: var(--green);
    font-weight: 300;
    margin-left: 1px;
  }

  /* ── ML PANEL ── */
  .ml-panel {
    background: var(--bg2);
    border: 1px solid var(--border-bright);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 0 40px rgba(78,255,145,0.06), 0 20px 60px rgba(0,0,0,0.4);
    animation: fadeUp 0.7s ease both 0.8s;
  }
  .ml-panel-bar {
    background: var(--bg3);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid var(--border);
  }
  .ml-panel-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-dim);
    margin-left: 8px;
    flex: 1;
  }
  .ml-status-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--green);
    animation: blink 2s infinite;
  }
  .ml-panel-body { padding: 1rem; }
  .ml-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 8px 10px;
    margin-bottom: 12px;
  }
  .ml-prompt {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--green);
    white-space: nowrap;
  }
  .ml-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    caret-color: var(--green);
    min-width: 0;
  }
  .ml-input::placeholder { color: var(--text-dim); }
  .ml-run-btn {
    background: var(--green);
    color: #0a0e0a;
    border: none;
    border-radius: 3px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    cursor: pointer;
    transition: opacity 0.2s;
    white-space: nowrap;
  }
  .ml-run-btn:hover { opacity: 0.85; }
  .ml-run-btn:disabled { opacity: 0.5; cursor: not-allowed; }

  .ml-output { min-height: 130px; }
  .ml-hint {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    line-height: 1.9;
  }
  .ml-loading {
    display: flex; align-items: center; gap: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; color: var(--text-muted);
    padding: 1rem 0;
  }
  .ml-spinner {
    width: 14px; height: 14px;
    border: 2px solid var(--green-muted);
    border-top-color: var(--green);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  .ml-meta-row {
    display: flex; gap: 12px; margin-bottom: 10px;
    font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--text-dim);
  }
  .ml-result-grid { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
  .ml-result-row {
    display: grid;
    grid-template-columns: 80px 55px 1fr 30px;
    align-items: center;
    gap: 6px;
  }
  .ml-label { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--text-dim); letter-spacing: 0.05em; }
  .ml-value { font-family: 'JetBrains Mono', monospace; font-size: 11px; font-weight: 600; }
  .ml-bar-wrap { background: var(--bg3); border-radius: 2px; height: 4px; overflow: hidden; }
  .ml-bar { height: 100%; border-radius: 2px; width: 0; transition: width 0.9s cubic-bezier(0.16,1,0.3,1); }
  .ml-pct { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--text-dim); text-align: right; }

  .ml-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 10px; }
  .ml-tag {
    font-family: 'JetBrains Mono', monospace; font-size: 10px;
    background: var(--green-muted); color: var(--green);
    border: 1px solid rgba(78,255,145,0.2); border-radius: 3px;
    padding: 2px 7px;
  }
  .ml-response {
    font-family: 'JetBrains Mono', monospace; font-size: 11px;
    color: var(--amber); line-height: 1.5;
    border-left: 2px solid var(--amber);
    padding-left: 10px; margin-top: 4px;
  }
  .ml-error { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: #ff8a7a; }

  /* ── CERTIFICATIONS ── */
  .cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
  }
  .cert-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
    position: relative;
    overflow: hidden;
  }
  .cert-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green-dim), transparent);
    opacity: 0;
    transition: opacity 0.3s;
  }
  .cert-card:hover::before { opacity: 1; }
  .cert-card:hover {
    border-color: var(--green-dim);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(78,255,145,0.07);
  }
  .cert-issuer-row {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .cert-issuer-badge {
    width: 36px; height: 36px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    color: #fff;
    flex-shrink: 0;
    letter-spacing: 0.03em;
  }
  .cert-issuer {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
  }
  .cert-date {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-dim);
    margin-top: 2px;
  }
  .cert-verified {
    margin-left: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--green);
    background: var(--green-muted);
    border: 1px solid rgba(78,255,145,0.2);
    border-radius: 3px;
    padding: 2px 7px;
    white-space: nowrap;
  }
  .cert-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.4;
  }
  .cert-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
  }
  .cert-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-muted);
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 2px 7px;
  }
  .cert-link {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--green-dim);
    text-decoration: none;
    transition: color 0.2s;
    margin-top: auto;
  }
  .cert-link:hover { color: var(--green); }

  /* ── CODING PROFILES ── */
  .coding-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
  }
  .coding-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
    position: relative;
    overflow: hidden;
  }
  .coding-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green-dim), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
  }
  .coding-card:hover::after { transform: scaleX(1); }
  .coding-card:hover {
    border-color: var(--green-dim);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(78,255,145,0.07);
  }
  .coding-header {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .coding-logo {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px; font-weight: 700;
    color: #fff;
    flex-shrink: 0;
    letter-spacing: 0.03em;
  }
  .lc-logo { background: linear-gradient(135deg, #f89f1b, #e05d00); }
  .hr-logo { background: linear-gradient(135deg, #2ec866, #0d8a41); }
  .coding-platform-info { flex: 1; }
  .coding-platform-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
  }
  .coding-handle {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    margin-top: 2px;
  }
  .coding-visit-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 600;
    color: #0a0e0a;
    background: var(--green);
    border: none;
    border-radius: 4px;
    padding: 6px 12px;
    text-decoration: none;
    transition: opacity 0.2s, transform 0.2s;
    white-space: nowrap;
  }
  .coding-visit-btn:hover { opacity: 0.85; transform: translateY(-1px); }
  .coding-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
  }
  .coding-stat {
    text-align: center;
    padding: 4px 0;
  }
  .coding-stat + .coding-stat {
    border-left: 1px solid var(--border);
  }
  .coding-stat-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
  }
  .coding-stat-num.green { color: var(--green); }
  .coding-stat-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-dim);
    margin-top: 3px;
  }
 
  .coding-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
  }
  .coding-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-muted);
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 2px 7px;
    transition: border-color 0.2s;
  }
  .coding-card:hover .coding-tag { border-color: var(--border-bright); }
  /* ── FIREWALL TICKER BAR ── */
  .firewall-ticker {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 28px;
    background: var(--green-muted);
    border-bottom: 1px solid var(--green-dim);
    overflow: hidden;
    z-index: 200;
    display: flex;
    align-items: center;
  }
  .firewall-ticker-track {
    display: flex;
    white-space: nowrap;
    animation: ticker-scroll 22s linear infinite;
  }
  .firewall-ticker-track span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.4px;
    color: var(--green);
    padding-right: 48px;
  }
  @keyframes ticker-scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
  }
  body { padding-top: 28px; }
  nav { top: 28px; }

  /* ── CONTACT FORM ── */
  .contact-form-wrap {
    max-width: 560px;
    margin: 0 auto 3rem;
    background: var(--bg2);
    border: 1px solid var(--border, #1e2a20);
    border-radius: 8px;
    padding: 1.75rem;
  }
  .contact-form-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--green);
    margin-bottom: 1.1rem;
  }
  .contact-form-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 1rem;
  }
  .contact-form-row label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim, #7a9c82);
  }
  .contact-form-row input,
  .contact-form-row textarea {
    background: var(--bg3);
    border: 1px solid var(--border, #1e2a20);
    border-radius: 5px;
    color: var(--text, #d8e6db);
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    padding: 10px 12px;
    outline: none;
    resize: vertical;
    transition: border-color 0.2s;
  }
  .contact-form-row input:focus,
  .contact-form-row textarea:focus { border-color: var(--green-dim); }
  .contact-form-submit {
    background: var(--green);
    color: #06110a;
    border: none;
    border-radius: 5px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 700;
    padding: 10px 20px;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.2s;
  }
  .contact-form-submit:hover { opacity: 0.88; transform: translateY(-1px); }
  .contact-form-submit:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
  .contact-form-status {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    margin-top: 10px;
    min-height: 16px;
  }
  .contact-form-status.ok { color: var(--green); }
  .contact-form-status.err { color: #ff8a7a; }

  /* ── generic lang dot fallback colors for API-driven projects ── */
  .lang-python  { background: #3776AB; }
  .lang-ts      { background: #3178C6; }
  .lang-node    { background: #6CC24A; }
  .lang-android { background: #A97BFF; }
  .lang-ml      { background: #DA5B0B; }
  .lang-cpp     { background: #6ab4ff; }
  .lang-default { background: var(--green-dim); }

  /* ── CONTACT: form left, socials right ── */
  .contact-columns {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
  }
  .contact-columns .contact-form-wrap {
    flex: 0 0 40%;
    max-width: 480px;
    margin: 0;
  }
  .contact-columns .contact-grid {
    flex: 1;
    grid-template-columns: repeat(2, 1fr);
    align-content: start;
  }
  @media (max-width: 820px) {
    .contact-columns {
      flex-direction: column;
    }
    .contact-columns .contact-form-wrap {
      flex: 1 1 auto;
      max-width: 100%;
      width: 100%;
    }
    .contact-columns .contact-grid {
      width: 100%;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
  }