:root {
    --bg: #05080f;
    --bg2: #0a0f1e;
    --bg3: #0f1628;
    --teal: #00e5c3;
    --teal-dim: #00b39a;
    --amber: #f0a000;
    --text: #e8eaf0;
    --text-muted: #7a8299;
    --border: rgba(0,229,195,0.15);
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Barlow', sans-serif;
    font-weight: 300;
    overflow-x: hidden;
  }

  /* ─── CANVAS BG ─── */
  #canvas-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    opacity: 0.4;
    pointer-events: none;
  }

  /* ─── NAV ─── */
  nav {
    position: fixed;
    top: 0; width: 100%;
    z-index: 100;
    padding: 1.2rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, rgba(5,8,15,0.95), transparent);
    backdrop-filter: blur(2px);
  }

  .nav-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--teal);
    letter-spacing: 0.1em;
    text-decoration: none;
  }

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

  .nav-links a {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color 0.3s;
  }

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

  /* ─── HERO ─── */
  #hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 4rem;
    z-index: 1;
  }

  .hero-content { max-width: 780px; }

  .hero-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    color: var(--teal);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
  }

  .hero-tag::before {
    content: '';
    display: inline-block;
    width: 40px;
    height: 1px;
    background: var(--teal);
  }

  h1 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 0.92;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: 2rem;
  }

  h1 .line-accent { color: var(--teal); }
  h1 .line-dim { color: var(--text-muted); font-weight: 300; }

  .hero-desc {
    font-size: 1.05rem;
    line-height: 1.75;
    color: #a0a8c0;
    max-width: 560px;
    margin-bottom: 2.5rem;
    font-weight: 300;
  }

  .hero-cta {
    display: flex;
    gap: 1rem;
    align-items: center;
  }

  .btn-primary {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--bg);
    background: var(--teal);
    padding: 0.85rem 2rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.3s, transform 0.2s;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  }

  .btn-primary:hover { background: var(--teal-dim); transform: translateY(-2px); }

  .btn-secondary {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--teal);
    background: transparent;
    padding: 0.85rem 2rem;
    border: 1px solid var(--border);
    cursor: pointer;
    text-decoration: none;
    transition: border-color 0.3s, color 0.3s;
  }

  .btn-secondary:hover { border-color: var(--teal); color: var(--teal); }

  /* ─── HERO STATS ─── */
  .hero-stats {
    position: absolute;
    right: 4rem;
    bottom: 6rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    z-index: 1;
  }

  .stat-item { text-align: right; }

  .stat-num {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--teal);
    line-height: 1;
  }

  .stat-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 0.2rem;
  }

  .scroll-hint {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: float 2.5s ease-in-out infinite;
  }

  .scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--teal), transparent);
  }

  @keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
  }

  /* ─── SECTION BASE ─── */
  section { position: relative; z-index: 1; padding: 6rem 4rem; }

  .section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: var(--teal);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .section-label::after {
    content: '';
    display: inline-block;
    flex: 1;
    max-width: 60px;
    height: 1px;
    background: var(--teal);
    opacity: 0.4;
  }

  h2 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    text-transform: uppercase;
    line-height: 1;
    letter-spacing: -0.01em;
    margin-bottom: 3rem;
  }

  /* ─── ABOUT ─── */
  #about { background: var(--bg2); }

  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
  }

  .about-text p {
    font-size: 1.05rem;
    line-height: 1.85;
    color: #a0a8c0;
    margin-bottom: 1.25rem;
  }

  .about-text p strong { color: var(--teal); font-weight: 500; }

  .about-right { display: flex; flex-direction: column; gap: 2rem; }

  .tech-layer {
    border: 1px solid var(--border);
    padding: 1.5rem;
    position: relative;
    background: rgba(0,229,195,0.02);
    clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  }

  .layer-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--amber);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
  }

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

  .tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: var(--teal);
    background: rgba(0,229,195,0.08);
    border: 1px solid rgba(0,229,195,0.2);
    padding: 0.25rem 0.75rem;
    letter-spacing: 0.05em;
  }

  /* ─── PROJECTS ─── */
  #projects { background: var(--bg); }

  .projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5px;
  }

  .project-card {
    background: var(--bg2);
    padding: 2.5rem;
    border-top: 2px solid transparent;
    transition: border-color 0.3s, background 0.3s;
    cursor: default;
  }

  .project-card:hover {
    border-top-color: var(--teal);
    background: var(--bg3);
  }

  .project-num {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 5rem;
    font-weight: 700;
    color: rgba(255,255,255,0.04);
    line-height: 1;
    margin-bottom: 1rem;
  }

  .project-type {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--amber);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
  }

  .project-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 1rem;
    line-height: 1.1;
  }

  .project-desc {
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
  }

  .project-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
  }

  .stack-chip {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    color: var(--text-muted);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 0.2rem 0.5rem;
    letter-spacing: 0.05em;
  }

  /* ─── MINI PROJECTS ─── */

  #mini-projects { background: var(--bg2); }

  .mini-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto 2rem;
  }

  .mini-link {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 84px;
    background: var(--bg);
    color: var(--text);
    text-decoration: none;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 1px solid rgba(255,255,255,0.08);
    transition: background 0.22s, transform 0.16s, border-color 0.22s;
  }

  .mini-link:hover { 
    background: var(--bg3);
    transform: translateY(-4px);
    border-color: var(--teal); 
  }

  @media (max-width: 900px) {
    .mini-links { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
    .mini-link { height: 72px; font-size: 0.9rem; }
  }

  @media (max-width: 480px) {
    .mini-links { grid-template-columns: 1fr; }
  }

  /* ─── SKILL BARS ─── */
  #skills { background: var(--bg); }

  .skills-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }

  .skill-item { margin-bottom: 1.75rem; }

  .skill-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.6rem;
  }

  .skill-name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    color: var(--text);
  }

  .skill-pct {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--teal);
  }

  .skill-track {
    height: 2px;
    background: rgba(255,255,255,0.06);
    position: relative;
    overflow: hidden;
  }

  .skill-fill {
    height: 100%;
    background: var(--teal);
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .skill-fill.animated { transform: scaleX(1); }

  /* ─── TIMELINE ─── */
  #experience { background: var(--bg2); }

  .timeline { position: relative; padding-left: 2rem; }

  .timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--teal), transparent);
  }

  .timeline-item {
    position: relative;
    padding: 0 0 3rem 2.5rem;
  }

  .timeline-dot {
    position: absolute;
    left: -0.35rem;
    top: 0.35rem;
    width: 8px;
    height: 8px;
    background: var(--teal);
    transform: rotate(45deg);
  }

  .timeline-date, .timeline-year {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--amber);
    letter-spacing: 0.15em;
    margin-bottom: 0.4rem;
  }

  .timeline-role, .timeline-program {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.2rem;
  }

  .timeline-company, .timeline-school {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--teal);
    margin-bottom: 0.75rem;
  }

  .timeline-desc, .timeline-study {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-muted);
    max-width: 600px;
  }

  /* ─── EDUCATION ─── */
  #education { background: var(--bg); }

  /* ─── CERTIFICATION ─── */
  #certification { background: var(--bg2); }

  .certif-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .certif-link {
    position: relative;
    width: 140px;
    height: 140px;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.3s;
  }

  .certif-link:hover {
    border-color: var(--teal);
  }

  .certif-link img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
    background: var(--bg2);
    transition: filter 0.3s;
  }

  .certif-link:hover img {
    filter: blur(2px) brightness(0.4);
  }

  .certif-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    opacity: 0;
    transition: opacity 0.3s;
    background: rgba(0,0,0,0.5);
  }

  .certif-link:hover .certif-overlay {
    opacity: 1;
  }

  .certif-overlay span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--teal);
    letter-spacing: 0.05em;
    text-align: center;
    text-transform: uppercase;
    line-height: 1.5;
  }

  /* ─── CONTACT ─── */
  #contact {
    background: var(--bg);
    text-align: center;
    padding: 8rem 4rem;
  }

  .contact-big {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: clamp(3rem, 7vw, 6rem);
    font-weight: 800;
    text-transform: uppercase;
    line-height: 0.95;
    margin-bottom: 1.5rem;
  }

  .contact-big span { color: var(--teal); }

  .contact-sub {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    line-height: 1.7;
  }

  .contact-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
  }

  .contact-link {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    text-decoration: none;
    border: 1px solid rgba(255,255,255,0.08);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    transition: color 0.3s, border-color 0.3s;
  }

  .contact-link:hover { color: var(--teal); border-color: var(--teal); }

  .contact-link svg { width: 14px; height: 14px; }

  footer {
    background: var(--bg2);
    text-align: center;
    padding: 2rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: rgba(255,255,255,0.2);
    letter-spacing: 0.1em;
    position: relative;
    z-index: 1;
  }

  /* ─── REVEAL ANIMATION ─── */
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }

  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ─── SCROLLBAR ─── */
  ::-webkit-scrollbar { width: 4px; }
  ::-webkit-scrollbar-track { background: var(--bg); }
  ::-webkit-scrollbar-thumb { background: var(--teal); opacity: 0.4; }

  @media (max-width: 900px) {
    nav { padding: 1.2rem 1.5rem; }
    section { padding: 4rem 1.5rem; }
    #hero { padding: 0 1.5rem; }
    .about-grid { grid-template-columns: 1fr; gap: 3rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .skills-layout { grid-template-columns: 1fr; gap: 2rem; }
    .hero-stats { display: none; }
    .nav-links { display: none; }
  }