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

.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: 8px 16px;
  background: var(--accent);
  color: #000;
  font-size: 12px;
  z-index: 9999;
}
.skip-link:focus { top: 0; }

  :root {
    --bg: #080b0f;
    --surface: #0e1318;
    --border: #1e2a35;
    --accent: #00e5ff;
    --accent2: #ff3b6b;
    --accent3: #a8ff78;
    --text: #c8d8e8;
    --muted: #6080a0;
    --mono: 'JetBrains Mono', monospace;
    --sans: 'Syne', sans-serif;
  }

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
  }

  .cursor {
    width: 10px; height: 10px;
    background: var(--accent);
    border-radius: 50%;
    position: fixed;
    top: 0; left: 0;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease;
    mix-blend-mode: difference;
  }
  .cursor-ring {
    width: 36px; height: 36px;
    border: 1px solid var(--accent);
    border-radius: 50%;
    position: fixed;
    top: 0; left: 0;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.25s ease, width 0.2s, height 0.2s;
    opacity: 0.5;
  }

  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
      to bottom,
      transparent 0px,
      transparent 2px,
      rgba(0,0,0,0.12) 2px,
      rgba(0,0,0,0.12) 4px
    );
    pointer-events: none;
    z-index: 1000;
  }

  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 48px;
    border-bottom: 1px solid var(--border);
    background: rgba(8,11,15,0.92);
    backdrop-filter: blur(12px);
  }
  .nav-logo {
    font-family: var(--sans);
    font-weight: 800;
    font-size: 18px;
    color: #fff;
    letter-spacing: -0.5px;
  }
  .nav-logo span { color: var(--accent); }
  .nav-links { display: flex; gap: 32px; }
  .nav-links a {
    color: var(--muted);
    text-decoration: none;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: color 0.2s;
  }
  .nav-links a:hover { color: var(--accent); }
  .nav-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--accent3);
  }
  .nav-status::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--accent3);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }

  section { padding: 120px 48px; max-width: 1200px; margin: 0 auto; }

  #hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 100px;
    max-width: 100%;
    padding-left: 10vw;
    padding-right: 10vw;
    position: relative;
  }
  .hero-label {
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeUp 0.6s 0.2s forwards;
  }
  .hero-name {
    font-family: var(--sans);
    font-weight: 800;
    font-size: clamp(56px, 9vw, 120px);
    line-height: 0.95;
    color: #fff;
    letter-spacing: -3px;
    margin-bottom: 8px;
    opacity: 0;
    animation: fadeUp 0.6s 0.35s forwards;
  }
  .hero-name .accent { color: var(--accent); }
  .hero-role {
    font-family: var(--sans);
    font-size: clamp(18px, 2.5vw, 32px);
    color: var(--muted);
    font-weight: 400;
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeUp 0.6s 0.5s forwards;
  }
  .hero-bio {
    max-width: 560px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 48px;
    opacity: 0;
    animation: fadeUp 0.6s 0.65s forwards;
  }
  .hero-ctas {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.6s 0.8s forwards;
  }
  .btn {
    padding: 12px 28px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 1px;
    cursor: none;
    text-decoration: none;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .btn-primary {
    background: var(--accent);
    color: #000;
    font-weight: 700;
    border: 2px solid var(--accent);
  }
  .btn-primary:hover { background: transparent; color: var(--accent); }
  .btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
  }
  .btn-outline:hover { border-color: var(--accent); color: var(--accent); }

  .hero-scroll {
    position: absolute;
    bottom: 48px;
    left: 10vw;
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    animation: fadeUp 0.6s 1.1s forwards;
  }
  .hero-scroll::after {
    content: '';
    width: 60px; height: 1px;
    background: var(--muted);
  }

  .terminal {
    position: absolute;
    right: 8vw;
    top: 50%;
    transform: translateY(-50%);
    width: 380px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    opacity: 0;
    animation: fadeUp 0.6s 1s forwards;
    box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,229,255,0.05);
  }
  .terminal-bar {
    padding: 10px 16px;
    background: var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--muted);
  }
  .dot { width: 10px; height: 10px; border-radius: 50%; }
  .dot-red { background: #ff5f57; }
  .dot-yellow { background: #febc2e; }
  .dot-green { background: #28c840; }
  .terminal-body { padding: 20px; font-size: 12px; line-height: 2; }
  .t-prompt { color: var(--accent); }
  .t-cmd { color: #fff; }
  .t-out { color: var(--muted); }
  .t-out.green { color: var(--accent3); }
  .t-out.cyan { color: var(--accent); }
  .t-cursor {
    display: inline-block;
    width: 7px; height: 14px;
    background: var(--accent);
    margin-left: 2px;
    animation: blink 1s infinite;
    vertical-align: middle;
  }
  @keyframes blink { 0%,50% { opacity: 1; } 51%,100% { opacity: 0; } }

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

  .section-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 64px;
  }
  .section-num {
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 2px;
  }
  .section-title {
    font-family: var(--sans);
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 800;
    color: #fff;
    letter-spacing: -1px;
  }
  .section-line {
    flex: 1;
    height: 1px;
    background: var(--border);
  }

  #skills { background: var(--surface); max-width: 100%; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
  #skills > div { max-width: 1200px; margin: 0 auto; }
  .skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); gap: 24px; }
  .skill-card-wide { grid-column: span 2; }
  .skill-card {
    border: 1px solid var(--border);
    padding: 28px;
    position: relative;
    background: var(--bg);
    transition: border-color 0.2s, transform 0.2s;
    overflow: hidden;
  }
  .skill-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s;
  }
  .skill-card:hover { border-color: var(--accent); transform: translateY(-4px); }
  .skill-card:hover::before { transform: scaleX(1); }
  .skill-card.red::before { background: var(--accent2); }
  .skill-card.red:hover { border-color: var(--accent2); }
  .skill-card.green::before { background: var(--accent3); }
  .skill-card.green:hover { border-color: var(--accent3); }
  .skill-card-icon { font-size: 24px; margin-bottom: 16px; }
  .skill-card-title {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 16px;
    color: #fff;
    margin-bottom: 16px;
  }
  .tags { display: flex; flex-wrap: wrap; gap: 6px; }
  .tag {
    padding: 3px 10px;
    background: rgba(0,229,255,0.07);
    border: 1px solid rgba(0,229,255,0.15);
    color: var(--accent);
    font-size: 10px;
    letter-spacing: 0.5px;
  }
  .tag.red { background: rgba(255,59,107,0.07); border-color: rgba(255,59,107,0.15); color: var(--accent2); }
  .tag.green { background: rgba(168,255,120,0.07); border-color: rgba(168,255,120,0.15); color: var(--accent3); }
  .tag.neutral { background: rgba(200,216,232,0.05); border-color: rgba(200,216,232,0.1); color: var(--text); }

  .timeline { position: relative; padding-left: 40px; }
  .timeline::before {
    content: '';
    position: absolute;
    left: 0; top: 8px; bottom: 0;
    width: 1px;
    background: var(--border);
  }
  .timeline-item {
    position: relative;
    margin-bottom: 56px;
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.5s, transform 0.5s;
  }
  .timeline-item.visible { opacity: 1; transform: translateX(0); }
  .timeline-dot {
    position: absolute;
    left: -45px; top: 6px;
    width: 10px; height: 10px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent);
  }
  .timeline-dot.red { background: var(--accent2); box-shadow: 0 0 12px var(--accent2); }
  .timeline-period {
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 1px;
    margin-bottom: 6px;
    text-transform: uppercase;
  }
  .timeline-role {
    font-family: var(--sans);
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 4px;
  }
  .timeline-company {
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 16px;
  }
  .timeline-tasks { list-style: none; }
  .timeline-tasks li {
    padding: 6px 0;
    color: var(--text);
    font-size: 13px;
    display: flex;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
  }
  .timeline-tasks li::before { content: '›'; color: var(--accent); flex-shrink: 0; }

  .projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); gap: 24px; }
  .project-card {
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
    cursor: none;
  }
  .project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(0,229,255,0.05) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s;
  }
  .project-card:hover { border-color: rgba(0,229,255,0.3); transform: translateY(-6px); box-shadow: 0 24px 60px rgba(0,0,0,0.4); }
  .project-card:hover::after { opacity: 1; }
  .project-card.red::after { background: radial-gradient(circle at 80% 20%, rgba(255,59,107,0.05) 0%, transparent 60%); }
  .project-card.red:hover { border-color: rgba(255,59,107,0.3); }
  .project-card.green::after { background: radial-gradient(circle at 80% 20%, rgba(168,255,120,0.05) 0%, transparent 60%); }
  .project-card.green:hover { border-color: rgba(168,255,120,0.3); }
  .project-num { font-size: 11px; color: var(--muted); margin-bottom: 16px; }
  .project-title {
    font-family: var(--sans);
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
  }
  .project-desc { font-size: 12px; color: var(--muted); line-height: 1.8; margin-bottom: 20px; }

  .edu-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .edu-card {
    border: 1px solid var(--border);
    padding: 32px;
    background: var(--surface);
    transition: border-color 0.2s;
  }
  .edu-card:hover { border-color: var(--accent); }
  .edu-degree {
    font-family: var(--sans);
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
  }
  .edu-school { font-size: 12px; color: var(--accent); margin-bottom: 4px; }
  .edu-period { font-size: 11px; color: var(--muted); margin-bottom: 16px; }
  .edu-details { font-size: 12px; color: var(--text); line-height: 1.8; }

  #contact { text-align: center; padding-bottom: 80px; }
  .contact-email {
    font-family: var(--sans);
    font-size: clamp(24px, 4vw, 52px);
    font-weight: 800;
    color: #fff;
    text-decoration: none;
    transition: color 0.2s;
    letter-spacing: -1px;
    display: block;
    margin: 32px 0;
  }
  .contact-email:hover { color: var(--accent); }
  .social-links { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; margin-top: 32px; }
  .social-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    text-decoration: none;
    font-size: 12px;
    letter-spacing: 1px;
    padding: 10px 20px;
    border: 1px solid var(--border);
    transition: all 0.2s;
  }
  .social-link:hover { color: var(--accent); border-color: var(--accent); }

  footer {
    border-top: 1px solid var(--border);
    padding: 24px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--muted);
  }

  .lang-grid { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
  .lang-badge {
    padding: 8px 18px;
    border: 1px solid var(--border);
    background: var(--surface);
    font-size: 12px;
    color: var(--text);
    display: flex;
    gap: 8px;
    align-items: center;
  }
  .lang-badge .lang-level { color: var(--muted); font-size: 10px; }

  @media (max-width: 900px) {
    nav { padding: 16px 24px; }
    .nav-links { display: none; }
    .nav-status { font-size: 10px; }
  }

  @media (max-width: 768px) {
    nav { padding: 14px 20px; }

    #hero {
      padding-left: 20px; padding-right: 20px; padding-top: 100px;
      align-items: center;
      text-align: center;
    }
    .hero-name {
      font-size: clamp(32px, 11vw, 56px);
      letter-spacing: -1px;
    }
    .hero-bio { max-width: 100%; }
    .hero-ctas { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 320px; justify-content: center; }
    .hero-scroll { left: 50%; transform: translateX(-50%); }

    .terminal { display: none; }

    section { padding: 80px 20px; }

    .section-header { justify-content: center; }
    .section-line { display: none; }

    .skills-grid { grid-template-columns: 1fr; }
    .skill-card-wide { grid-column: span 1; }
    .skill-card { text-align: center; }
    .tags { justify-content: center; }
    .lang-grid { justify-content: center; }

    .timeline { padding-left: 24px; }
    .timeline-item { text-align: center; }
    .timeline-dot { display: none; }

    .projects-grid { grid-template-columns: 1fr; }
    .project-card { text-align: center; }

    .edu-grid { grid-template-columns: 1fr; }
    .edu-card { text-align: center; }

    footer { flex-direction: column; gap: 8px; text-align: center; }
  }