:root{
    --bg: #0B1120;
    --surface: #111A2E;
    --surface-2: #16213A;
    --border: #223252;
    --text: #E8EDF5;
    --text-muted: #8B98AE;
    --accent: #F2B035;
    --accent-2: #4FD1C5;
    --danger: #E5657A;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --max: 920px;
  }

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

  html{scroll-behavior:smooth;}

  body{
    background:var(--bg);
    color:var(--text);
    font-family:var(--font-body);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    background-image:
      radial-gradient(ellipse 80% 50% at 50% -10%, rgba(242,176,53,0.08), transparent),
      linear-gradient(var(--border) 1px, transparent 1px),
      linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: auto, 48px 48px, 48px 48px;
    background-position: 0 0, -1px -1px, -1px -1px;
    background-attachment: fixed;
  }

  body::before{
    content:'';
    position:fixed; inset:0;
    background:radial-gradient(ellipse 60% 40% at 50% 0%, rgba(11,17,32,0), var(--bg) 75%);
    pointer-events:none;
    z-index:0;
  }

  a{color:inherit;}

  .wrap{max-width:var(--max); margin:0 auto; padding:0 24px; position:relative; z-index:1;}

  /* ---------- NAV ---------- */
  nav{
    position:sticky; top:0; z-index:50;
    background:rgba(11,17,32,0.85);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
  }
  nav .wrap{display:flex; align-items:center; justify-content:space-between; padding-top:16px; padding-bottom:16px;}
  .logo{
    font-family:var(--font-mono); font-size:14px; color:var(--accent-2);
    display:flex; align-items:center; gap:8px;
  }
  .logo .dot{width:8px; height:8px; border-radius:50%; background:var(--accent-2); box-shadow:0 0 8px var(--accent-2); animation:pulse 2s infinite;}
  @keyframes pulse{0%,100%{opacity:1;} 50%{opacity:0.35;}}
  nav ul{list-style:none; display:flex; gap:28px;}
  nav a{font-family:var(--font-mono); font-size:13px; color:var(--text-muted); text-decoration:none; transition:color .2s;}
  nav a:hover{color:var(--accent);}
  .nav-toggle{display:none;}

  /* ---------- HERO ---------- */
  header.hero{padding:96px 0 72px;}
  .eyebrow{
    font-family:var(--font-mono); font-size:13px; color:var(--accent);
    letter-spacing:0.06em; margin-bottom:20px; display:flex; align-items:center; gap:10px;
  }
  .eyebrow::before{content:'//'; color:var(--text-muted);}
  h1{
    font-family:var(--font-display); font-weight:700;
    font-size:clamp(2.4rem, 6vw, 4.2rem);
    line-height:1.04; letter-spacing:-0.02em;
    margin-bottom:14px;
  }
  h1 span{color:var(--accent);}
  .role-line{
    font-family:var(--font-display); font-weight:500; font-size:clamp(1.05rem, 2.4vw, 1.35rem);
    color:var(--text-muted); margin-bottom:36px; max-width:640px;
  }
  .role-line strong{color:var(--accent-2); font-weight:600;}

  .terminal{
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:10px;
    overflow:hidden;
    max-width:620px;
    box-shadow:0 24px 60px -20px rgba(0,0,0,0.6);
  }
  .terminal-bar{
    display:flex; align-items:center; gap:8px;
    padding:10px 14px; border-bottom:1px solid var(--border);
    background:var(--surface-2);
  }
  .terminal-bar span{width:10px; height:10px; border-radius:50%; background:#3a4a6b;}
  .terminal-bar .path{margin-left:8px; font-family:var(--font-mono); font-size:12px; color:var(--text-muted);}
  .terminal-body{padding:18px 20px; font-family:var(--font-mono); font-size:13.5px;}
  .terminal-body .line{margin-bottom:10px; display:flex; gap:10px;}
  .terminal-body .line:last-child{margin-bottom:0;}
  .terminal-body .prompt{color:var(--accent-2); flex-shrink:0;}
  .terminal-body .out{color:var(--text-muted);}
  .terminal-body .out b{color:var(--text); font-weight:500;}
  .cursor{display:inline-block; width:7px; height:14px; background:var(--accent); margin-left:2px; animation:blink 1s step-end infinite; vertical-align:middle;}
  @keyframes blink{0%,50%{opacity:1;} 51%,100%{opacity:0;}}

  /* ---------- SECTION HEADERS ---------- */
  .section{padding:64px 0;}
  .section-head{display:flex; align-items:baseline; gap:14px; margin-bottom:36px;}
  .section-head .tag{
    font-family:var(--font-mono); font-size:12px; color:var(--accent);
    border:1px solid var(--border); border-radius:4px; padding:3px 8px; background:var(--surface);
  }
  .section-head h2{font-family:var(--font-display); font-size:1.6rem; font-weight:600;}
  .section-head .rule{flex:1; height:1px; background:var(--border);}

  /* ---------- SUMMARY ---------- */
  .summary p{color:var(--text-muted); font-size:1.02rem; max-width:680px;}
  .summary p strong{color:var(--text); font-weight:500;}

  /* ---------- EXPERIENCE ---------- */
  .job{
    border:1px solid var(--border); background:var(--surface);
    border-radius:10px; padding:26px 26px 22px; margin-bottom:20px;
  }
  .job-top{display:flex; flex-wrap:wrap; justify-content:space-between; align-items:flex-start; gap:10px; margin-bottom:6px;}
  .job-title{font-family:var(--font-display); font-weight:600; font-size:1.15rem;}
  .job-title .company{color:var(--accent-2);}
  .status-pill{
    font-family:var(--font-mono); font-size:11px; padding:3px 9px; border-radius:20px;
    border:1px solid; white-space:nowrap; height:fit-content;
  }
  .status-pill.active{color:var(--accent-2); border-color:rgba(79,209,197,0.4); background:rgba(79,209,197,0.08);}
  .status-pill.done{color:var(--text-muted); border-color:var(--border); background:var(--surface-2);}
  .job-meta{font-family:var(--font-mono); font-size:12.5px; color:var(--text-muted); margin-bottom:16px;}
  .job ul{list-style:none;}
  .job li{
    position:relative; padding-left:18px; margin-bottom:9px; color:var(--text-muted); font-size:0.95rem;
  }
  .job li::before{content:'›'; position:absolute; left:0; color:var(--accent); font-family:var(--font-mono);}
  .job li:last-child{margin-bottom:0;}
  .metrics{display:flex; flex-wrap:wrap; gap:8px; margin-top:16px;}
  .metric{
    font-family:var(--font-mono); font-size:11.5px; color:var(--accent);
    border:1px solid rgba(242,176,53,0.3); background:rgba(242,176,53,0.06);
    padding:4px 9px; border-radius:5px;
  }

  /* ---------- SKILLS ---------- */
  .skill-grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(220px,1fr)); gap:16px;}
  .skill-mod{border:1px solid var(--border); background:var(--surface); border-radius:10px; padding:18px 18px 16px;}
  .skill-mod h3{
    font-family:var(--font-mono); font-size:11.5px; color:var(--text-muted);
    text-transform:uppercase; letter-spacing:0.06em; margin-bottom:12px;
  }
  .chip-row{display:flex; flex-wrap:wrap; gap:7px;}
  .chip{
    font-family:var(--font-mono); font-size:12px; color:var(--text);
    background:var(--surface-2); border:1px solid var(--border);
    padding:4px 9px; border-radius:5px;
  }

  /* ---------- EDUCATION / CERTS / ACHIEVEMENTS ---------- */
  .grid-2{display:grid; grid-template-columns:1.3fr 1fr; gap:20px;}
  .edu-grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(240px,1fr)); gap:20px 28px;}
  .panel{border:1px solid var(--border); background:var(--surface); border-radius:10px; padding:22px 24px;}
  .panel h3{font-family:var(--font-mono); font-size:11.5px; color:var(--accent-2); text-transform:uppercase; letter-spacing:0.06em; margin-bottom:16px;}
  .edu-item{margin-bottom:16px;}
  .edu-item:last-child{margin-bottom:0;}
  .edu-item .deg{font-weight:600; font-size:0.95rem;}
  .edu-item .inst{color:var(--text-muted); font-size:0.87rem; margin-top:2px;}
  .edu-item .score{font-family:var(--font-mono); font-size:12px; color:var(--accent); margin-top:4px;}

  /* ---------- CONTACT FORM ---------- */
  .contact-card{
    border:1px solid var(--border); background:var(--surface); border-radius:10px;
    padding:32px; max-width:640px;
  }
  .form-row{margin-bottom:18px;}
  .form-row:last-of-type{margin-bottom:0;}
  .form-row label{
    display:block; font-family:var(--font-mono); font-size:12px; color:var(--text-muted);
    margin-bottom:8px; letter-spacing:0.02em;
  }
  .form-row input, .form-row textarea{
    width:100%; background:var(--surface-2); border:1px solid var(--border); border-radius:7px;
    padding:11px 13px; color:var(--text); font-family:var(--font-body); font-size:0.94rem;
    transition:border-color .2s;
  }
  .form-row input:focus, .form-row textarea:focus{outline:none; border-color:var(--accent);}
  .form-row textarea{resize:vertical; min-height:120px;}
  .form-submit{
    font-family:var(--font-mono); font-size:13px; color:var(--bg); font-weight:600;
    background:var(--accent); border:none; border-radius:8px; padding:12px 22px;
    cursor:pointer; margin-top:6px; transition:opacity .2s;
  }
  .form-submit:hover{opacity:0.88;}
  .form-note{
    font-family:var(--font-mono); font-size:11.5px; color:var(--text-muted); margin-top:14px;
  }
  .form-status{
    font-family:var(--font-mono); font-size:12.5px; margin-top:14px; display:none;
  }
  .form-status.show{display:block;}
  .form-status.ok{color:var(--accent-2);}
  .form-status.err{color:var(--danger);}

  /* ---------- CONTACT / FOOTER ---------- */
  footer{padding:80px 0 56px; border-top:1px solid var(--border); margin-top:20px;}
  footer .lead{font-family:var(--font-display); font-size:clamp(1.6rem,4vw,2.4rem); font-weight:600; max-width:600px; margin-bottom:32px;}
  footer .lead span{color:var(--accent);}
  .contact-row{display:flex; flex-wrap:wrap; gap:14px;}
  .contact-btn{
    font-family:var(--font-mono); font-size:13px; color:var(--text);
    border:1px solid var(--border); background:var(--surface);
    padding:11px 18px; border-radius:8px; text-decoration:none;
    display:flex; align-items:center; gap:8px; transition:border-color .2s, color .2s;
  }
  .contact-btn:hover{border-color:var(--accent); color:var(--accent);}
  .foot-meta{margin-top:48px; font-family:var(--font-mono); font-size:11.5px; color:var(--text-muted); display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;}

  /* ---------- RESPONSIVE ---------- */
  @media (max-width:720px){
    nav ul{gap:16px;}
    nav a{font-size:12px;}
    .grid-2{grid-template-columns:1fr;}
    header.hero{padding:64px 0 48px;}
    .section{padding:48px 0;}
  }
  @media (max-width:520px){
    nav a.hide-mobile{display:none;}
  }

  /* focus visibility */
  a:focus-visible, button:focus-visible{outline:2px solid var(--accent); outline-offset:2px;}

  @media (prefers-reduced-motion: reduce){
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
  }

  /* ---------- ARTICLES: preview cards (homepage) ---------- */
  .article-grid{
    display:grid; grid-template-columns:repeat(auto-fit, minmax(260px,1fr));
    gap:18px; margin-bottom:20px;
  }
  .article-card{
    display:block; text-decoration:none; color:var(--text);
    border:1px solid var(--border); background:var(--surface); border-radius:10px;
    padding:22px; transition:border-color .2s, transform .2s;
  }
  .article-card:hover{border-color:var(--accent); transform:translateY(-2px);}
  .article-card .a-date{
    font-family:var(--font-mono); font-size:11.5px; color:var(--accent-2); margin-bottom:10px; display:block;
  }
  .article-card h3{font-family:var(--font-display); font-size:1.1rem; font-weight:600; margin-bottom:8px; line-height:1.3;}
  .article-card p{color:var(--text-muted); font-size:0.88rem; line-height:1.55;}
  .article-card .a-meta{
    font-family:var(--font-mono); font-size:11px; color:var(--text-muted); margin-top:14px;
  }
  .view-all-link{
    font-family:var(--font-mono); font-size:13px; color:var(--accent); text-decoration:none;
  }
  .view-all-link:hover{text-decoration:underline;}
  .empty-note{color:var(--text-muted); font-family:var(--font-mono); font-size:13px;}

  /* ---------- ARTICLES: listing page ---------- */
  .articles-index-header{padding:88px 0 32px;}
  .articles-index-header .eyebrow{margin-bottom:16px;}
  .articles-index-header h1{font-size:clamp(2rem,5vw,3rem); margin-bottom:10px;}
  .articles-index-header p{color:var(--text-muted); font-family:var(--font-body); max-width:560px;}
  .articles-list-wrap{padding:0 0 88px;}

  /* ---------- ARTICLES: single article page ---------- */
  .article-header{padding:88px 0 24px;}
  .article-header .back-link{
    font-family:var(--font-mono); font-size:12.5px; color:var(--text-muted); text-decoration:none;
    display:inline-block; margin-bottom:24px;
  }
  .article-header .back-link:hover{color:var(--accent);}
  .article-header h1{font-size:clamp(1.9rem,4.6vw,3rem); line-height:1.12; margin-bottom:16px;}
  .article-meta-row{
    display:flex; flex-wrap:wrap; gap:16px; font-family:var(--font-mono); font-size:12px; color:var(--text-muted);
    border-bottom:1px solid var(--border); padding-bottom:24px;
  }
  .article-meta-row span{display:flex; align-items:center; gap:6px;}
  .article-meta-row span::before{content:'·'; color:var(--border);}
  .article-meta-row span:first-child::before{content:none;}

  .article-body{padding:40px 0 88px;}
  .prose{max-width:720px; font-size:1.02rem; color:var(--text);}
  .prose h2{
    font-family:var(--font-display); font-weight:600; font-size:1.5rem;
    margin:40px 0 16px; padding-top:8px; border-top:1px solid var(--border);
  }
  .prose h2:first-child{border-top:none; margin-top:0; padding-top:0;}
  .prose h3{font-family:var(--font-display); font-weight:600; font-size:1.2rem; margin:32px 0 12px;}
  .prose p{color:var(--text-muted); line-height:1.75; margin-bottom:18px;}
  .prose strong{color:var(--text); font-weight:600;}
  .prose a{color:var(--accent-2); text-decoration:underline; text-underline-offset:2px;}
  .prose ul, .prose ol{color:var(--text-muted); margin:0 0 18px 22px; line-height:1.75;}
  .prose li{margin-bottom:6px;}
  .prose blockquote{
    border-left:3px solid var(--accent); margin:0 0 18px; padding:4px 0 4px 18px;
    color:var(--text-muted); font-style:italic;
  }
  .prose code{
    font-family:var(--font-mono); font-size:0.87em; background:var(--surface-2);
    border:1px solid var(--border); border-radius:4px; padding:2px 6px; color:var(--accent);
  }
  .prose pre{
    background:var(--surface); border:1px solid var(--border); border-radius:8px;
    padding:18px; overflow-x:auto; margin:0 0 20px;
  }
  .prose pre code{background:none; border:none; padding:0; color:var(--text); font-size:0.86em; line-height:1.6;}
  .prose img{max-width:100%; border-radius:8px; border:1px solid var(--border); margin:8px 0 20px;}
  .prose hr{border:none; border-top:1px solid var(--border); margin:32px 0;}
  .prose table{width:100%; border-collapse:collapse; margin-bottom:20px; font-size:0.92rem;}
  .prose th, .prose td{border:1px solid var(--border); padding:8px 12px; text-align:left; color:var(--text-muted);}
  .prose th{color:var(--text); font-family:var(--font-mono); font-size:0.82rem;}