:root{
    --bg:#F2F3F6;
    --surface:#FFFFFF;
    --ink:#14151A;
    --muted:#5B6270;
    --line:#E1E3E9;
    --accent:#4F46E5;
    --accent-soft:#EDECFC;
    --warm:#F5A524;
    --warm-soft:#FDF1DC;
    --add-bg:#E9F6EC;
    --add-ink:#1A7F37;
    --rem-bg:#FCECEC;
    --rem-ink:#C0342A;
    --code-surface:#14151A;
    --code-ink:#E7E8EC;
    --radius:10px;
    --mono:'JetBrains Mono', ui-monospace, monospace;
    --sans:'Inter', system-ui, sans-serif;
  }
 
  [data-theme="dark"]{
    --bg:#0E0F13;
    --surface:#1A1C24;
    --ink:#F2F3F6;
    --muted:#9BA1B0;
    --line:#2B2E39;
    --accent:#8B93F8;
    --accent-soft:rgba(139,147,248,0.16);
    --warm:#F5B94A;
    --warm-soft:rgba(245,185,74,0.14);
    --add-bg:rgba(58,166,90,0.16);
    --add-ink:#5FD37E;
    --rem-bg:rgba(217,90,80,0.16);
    --rem-ink:#F08477;
  }
 
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:var(--sans);
    -webkit-font-smoothing:antialiased;
    line-height:1.5;
    transition:background .25s ease, color .25s ease;
  }
  a{color:inherit;}
  img{max-width:100%;display:block;}
 
  ::selection{background:var(--accent);color:#fff;}
 
  :focus-visible{
    outline:2px solid var(--accent);
    outline-offset:3px;
    border-radius:4px;
  }
 
  .wrap{max-width:1160px;margin:0 auto;padding:0 28px;}
  @media (max-width:640px){ .wrap{padding:0 18px;} }
 
  /* ---------- NAV ---------- */
  header.nav{
    position:sticky;top:0;z-index:50;
    background:color-mix(in srgb, var(--bg) 85%, transparent);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 28px;max-width:1160px;margin:0 auto;gap:16px;
  }
  @media (max-width:480px){
    .nav-inner{padding:12px 18px;gap:8px;}
    .logo{font-size:13px;}
  }
  .logo{
    font-family:var(--mono);font-weight:700;font-size:15px;letter-spacing:-0.02em;
    display:flex;align-items:center;gap:8px;flex:none;
  }
  .logo .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;}
  .tabs{display:flex;gap:2px;font-family:var(--mono);font-size:13px;flex:1;}
  .tabs a{
    padding:8px 14px;color:var(--muted);text-decoration:none;
    border-radius:8px 8px 0 0;border:1px solid transparent;
    transition:color .15s ease, background .15s ease;
  }
  .tabs a:hover{color:var(--ink);background:var(--surface);}
  .tabs a .ext{color:var(--accent);}
  @media (max-width:860px){ .tabs{display:none;} }
 
  /* --- MOBILE NAV: hamburger button, hidden on desktop, shown under 860px --- */
  .menu-toggle{
    display:none;flex:none;
    width:38px;height:38px;align-items:center;justify-content:center;
    background:var(--surface);border:1px solid var(--line);border-radius:9px;
    cursor:pointer;padding:0;
  }
  .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after{
    content:"";display:block;width:16px;height:2px;background:var(--ink);
    position:relative;transition:transform .2s ease, opacity .2s ease;
  }
  .menu-toggle span::before{position:absolute;top:-5px;}
  .menu-toggle span::after{position:absolute;top:5px;}
  .menu-toggle[aria-expanded="true"] span{background:transparent;}
  .menu-toggle[aria-expanded="true"] span::before{transform:translateY(5px) rotate(45deg);}
  .menu-toggle[aria-expanded="true"] span::after{transform:translateY(-5px) rotate(-45deg);}
  @media (max-width:860px){ .menu-toggle{display:flex;} }
 
  /* --- MOBILE NAV: dropdown panel with the same links, stacked --- */
  .mobile-panel{
    display:none;flex-direction:column;gap:2px;
    padding:10px 28px 16px;border-top:1px solid var(--line);
  }
  .mobile-panel.open{display:flex;}
  .mobile-panel a{
    font-family:var(--mono);font-size:14px;color:var(--muted);text-decoration:none;
    padding:10px 4px;border-bottom:1px solid var(--line);
  }
  .mobile-panel a:last-of-type{border-bottom:none;}
  .mobile-panel a .ext{color:var(--accent);}
  @media (min-width:861px){ .mobile-panel{display:none !important;} }
 
  .nav-controls{display:flex;align-items:center;gap:14px;flex:none;}
  .ctrl-btn{
    font-family:var(--mono);font-size:12px;font-weight:700;
    background:var(--surface);color:var(--ink);
    border:1px solid var(--line);border-radius:999px;
    padding:7px 13px;cursor:pointer;letter-spacing:0.02em;
    transition:border-color .15s ease, transform .15s ease, background .15s ease;
    min-width:44px;
  }
  .ctrl-btn:hover{border-color:var(--accent);transform:translateY(-1px);}
 
  .theme-switch{
    position:relative;display:inline-flex;align-items:center;cursor:pointer;
    width:52px;height:28px;flex:none;
  }
  .theme-switch input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer;}
  .theme-switch .track{
    position:absolute;inset:0;border-radius:999px;
    background:var(--surface);border:1px solid var(--line);
    transition:background .2s ease, border-color .2s ease;
  }
  .theme-switch .track::before{
    content:"☀";position:absolute;left:7px;top:50%;transform:translateY(-50%);
    font-size:11px;line-height:1;color:var(--warm);
  }
  .theme-switch .track::after{
    content:"☾";position:absolute;right:7px;top:50%;transform:translateY(-50%);
    font-size:11px;line-height:1;color:var(--muted);
  }
  .theme-switch .thumb{
    position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;
    background:var(--accent);
    transition:transform .2s ease;
    box-shadow:0 1px 3px rgba(0,0,0,0.25);
  }
  .theme-switch input:checked ~ .track .thumb{transform:translateX(24px);}
  .theme-switch input:focus-visible ~ .track{outline:2px solid var(--accent);outline-offset:3px;}
 
  /* ---------- HERO ---------- */
  .hero{padding:64px 0 40px;}
  @media (max-width:640px){ .hero{padding:32px 0 24px;} }
  .editor{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:14px;
    box-shadow:0 1px 2px rgba(20,21,26,0.04), 0 12px 32px -20px rgba(20,21,26,0.25);
    overflow:hidden;
    transition:background .25s ease, border-color .25s ease;
  }
  .chrome{
    display:flex;align-items:center;gap:16px;
    padding:12px 18px;border-bottom:1px solid var(--line);
    background:color-mix(in srgb, var(--surface) 92%, var(--ink) 4%);
  }
  @media (max-width:640px){ .chrome{padding:10px 14px;gap:10px;} }
  .traffic{display:flex;gap:7px;}
  .traffic span{width:11px;height:11px;border-radius:50%;display:inline-block;}
  .traffic .r{background:#FF5F57;} .traffic .y{background:#FEBC2E;} .traffic .g{background:#28C840;}
  .filename{font-family:var(--mono);font-size:12.5px;color:var(--muted);}
 
  .code-pane{padding:26px 28px 8px;font-family:var(--mono);font-size:14px;color:var(--muted);}
  @media (max-width:640px){ .code-pane{padding:16px 16px 4px;font-size:11.5px;} }
  .code-pane .ln{color:#9195A3;user-select:none;display:inline-block;width:22px;}
  .code-pane .kw{color:var(--accent);}
  .code-pane .str{color:var(--add-ink);}
  .code-pane .prop{color:var(--ink);}
 
  .render-out{padding:8px 28px 36px;}
  @media (max-width:640px){ .render-out{padding:6px 16px 24px;} }
  .render-label{margin:0 0 4px;color:var(--accent);font-family:var(--mono);font-size:13px;font-weight:600;}
  .name-render{
    font-family:var(--mono);font-weight:800;
    font-size:clamp(34px, 8vw, 92px);
    line-height:0.98;letter-spacing:-0.03em;
    margin:6px 0 0;
    display:flex;flex-wrap:wrap;align-items:baseline;
  }
  @media (max-width:400px){ .name-render{font-size:clamp(28px, 11vw, 40px);} }
  .name-fixed{white-space:nowrap;}
  .name-extra{
    outline:none;white-space:pre-wrap;word-break:break-word;min-width:2px;
    caret-color:var(--accent);color:var(--accent);
  }
  .type-cursor{
    display:inline-block;width:0.5ch;height:0.86em;background:var(--accent);
    animation:blink 1.1s step-end infinite;margin-left:4px;transform:translateY(0.05em);
  }
  .name-extra:focus ~ .type-cursor{display:none;}
  @keyframes blink{50%{opacity:0;}}
  .type-hint{
    font-family:var(--mono);font-size:12px;color:var(--muted);
    margin:10px 0 0;opacity:0.75;
  }
 
  .tagline{
    font-family:var(--sans);font-size:17px;color:var(--muted);
    max-width:44ch;margin:18px 0 24px;
  }
 
  .badges{display:flex;flex-wrap:wrap;gap:10px;}
  .badge{
    display:inline-flex;align-items:center;gap:8px;
    font-family:var(--mono);font-size:12.5px;font-weight:500;
    padding:7px 12px;border-radius:999px;
    background:var(--accent-soft);color:var(--accent);
    border:1px solid rgba(79,70,229,0.15);
  }
  .badge.warm{background:var(--warm-soft);color:#9A6000;border-color:rgba(245,165,36,0.25);}
  [data-theme="dark"] .badge.warm{color:var(--warm);}
  .badge b{font-weight:800;}
 
  /* ---------- SECTION SHELL ---------- */
  section{padding:76px 0;border-top:1px solid var(--line);}
  .eyebrow{
    font-family:var(--mono);font-size:12.5px;font-weight:600;
    color:var(--accent);letter-spacing:0.02em;
    display:flex;align-items:center;gap:8px;margin-bottom:14px;
  }
  .eyebrow::before{content:"//";color:#9195A3;}
  h2.title{
    font-family:var(--mono);font-weight:800;font-size:clamp(26px,4vw,36px);
    letter-spacing:-0.02em;margin:0 0 12px;
  }
  .section-intro{color:var(--muted);font-size:15.5px;margin:0 0 32px;max-width:56ch;}
 
  /* ---------- ABOUT ---------- */
  .about-grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:56px;align-items:center;}
  @media (max-width:860px){.about-grid{grid-template-columns:1fr;gap:36px;}}
  .about-copy p{color:var(--muted);font-size:16px;margin:0 0 16px;max-width:52ch;}
  .about-copy p .hl{color:var(--ink);font-weight:600;}
 
  .about-panel{
    position:relative;background:var(--code-surface);border-radius:14px;
    padding:28px;overflow:hidden;color:var(--code-ink);
  }
  @media (max-width:640px){ .about-panel{padding:20px;} }
  .about-panel .term-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
  .about-panel .term-top .traffic span{opacity:.5;}
  .about-panel .term-top .path{font-family:var(--mono);font-size:11.5px;color:#8B8F9C;}
  .about-panel pre{
    margin:0;font-family:var(--mono);font-size:13px;line-height:1.75;
    white-space:pre-wrap;color:#C6CAD6;
  }
  .about-panel pre .k{color:#8FB2FF;} .about-panel pre .s{color:#9EE6A6;} .about-panel pre .c{color:#6B7280;}
  .stat-rail{
    display:flex;gap:22px;margin-top:24px;padding-top:20px;
    border-top:1px solid rgba(255,255,255,0.12);
  }
  .stat-rail div{font-family:var(--mono);}
  .stat-rail .n{font-size:19px;font-weight:800;color:#fff;}
  .stat-rail .l{font-size:11px;color:#8B8F9C;letter-spacing:0.04em;}
 
  /* ---------- WORK / SAMPLE VIDEOS ---------- */
  .video-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(150px, 1fr));gap:18px;}
  @media (max-width:640px){.video-grid{grid-template-columns:repeat(2, 1fr);}}
  @media (max-width:400px){.video-grid{grid-template-columns:1fr;}}
  .video-card{transition:transform .15s ease, box-shadow .15s ease;}
  .video-card:hover{transform:translateY(-3px);}
  .video-card video{
    display:block;width:100%;aspect-ratio:9/16;background:#000;object-fit:cover;
  }
  .video-meta{padding:12px 14px 14px;display:flex;flex-wrap:wrap;gap:6px;}
  .video-meta .badge{font-size:10.5px;padding:4px 8px;}
 
  /* ---------- DIFF (What is Technical UGC) ---------- */
  .diff{
    background:var(--surface);border:1px solid var(--line);border-radius:12px;
    overflow:hidden;font-family:var(--mono);font-size:14px;
  }
  .diff-row{display:flex;align-items:flex-start;gap:14px;padding:13px 20px;border-bottom:1px solid var(--line);}
  .diff-row:last-child{border-bottom:none;}
  .diff-row.rem{background:var(--rem-bg);}
  .diff-row.add{background:var(--add-bg);}
  .diff-mark{width:14px;flex:none;font-weight:700;}
  .diff-row.rem .diff-mark{color:var(--rem-ink);}
  .diff-row.add .diff-mark{color:var(--add-ink);}
  .diff-row.rem .diff-text{color:var(--rem-ink);}
  .diff-row.add .diff-text{color:var(--add-ink);}
  .diff-text{font-size:14px;}
  .diff-text b{font-weight:700;}
  .ugc-copy p{color:var(--muted);font-size:16px;max-width:56ch;margin:0 0 16px;}
 
  .ugc-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
  @media (max-width:860px){.ugc-grid{grid-template-columns:1fr;}}
 
  /* ---------- SERVICES ---------- */
  .svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  @media (max-width:860px){.svc-grid{grid-template-columns:1fr;}}
  .svc-card{
    background:var(--surface);border:1px solid var(--line);border-radius:12px;
    padding:24px;transition:transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  }
  .svc-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px -18px rgba(20,21,26,0.3);border-color:color-mix(in srgb, var(--line) 40%, var(--ink) 20%);}
  .svc-fn{font-family:var(--mono);font-size:13.5px;color:var(--accent);margin-bottom:14px;}
  .svc-fn .paren{color:#9195A3;}
  .svc-card h3{font-size:18px;margin:0 0 8px;font-weight:700;}
  .svc-card p{color:var(--muted);font-size:14.5px;margin:0;}
 
  /* ---------- CONTACT ---------- */
  .contact-panel{
    background:var(--code-surface);border-radius:16px;padding:44px;color:#fff;
    display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  }
  @media (max-width:720px){.contact-panel{grid-template-columns:1fr;text-align:left;}}
  @media (max-width:640px){
    .contact-panel{padding:28px 22px;}
    .contact-panel .btn{width:100%;}
  }
  .contact-panel h2{
    font-family:var(--mono);font-size:clamp(24px,4vw,32px);font-weight:800;margin:0 0 10px;letter-spacing:-0.02em;
  }
  .contact-panel p{color:#A9ACB8;margin:0;max-width:44ch;}
  .prompt-line{font-family:var(--mono);color:#8FB2FF;font-size:14px;margin-bottom:10px;}
  .contact-cta{display:flex;flex-direction:column;align-items:flex-end;gap:12px;}
  @media (max-width:720px){ .contact-cta{align-items:flex-start;} }
  .btn{
    font-family:var(--mono);font-weight:700;font-size:14.5px;
    background:var(--accent);color:#fff;border:none;
    padding:15px 26px;border-radius:9px;cursor:pointer;
    white-space:nowrap;transition:background .15s ease, transform .15s ease;
    text-decoration:none;display:inline-block;text-align:center;
  }
  .btn:hover{background:#4338CA;transform:translateY(-1px);}
  .contact-email-link{
    font-family:var(--mono);font-size:13px;color:#A9ACB8;
    text-decoration:none;border-bottom:1px dashed rgba(169,172,184,0.5);
  }
  .contact-email-link:hover{color:#fff;border-color:#fff;}
 
  footer{padding:34px 0 50px;}
  .foot-row{
    display:flex;justify-content:space-between;align-items:center;
    font-family:var(--mono);font-size:12.5px;color:var(--muted);flex-wrap:wrap;gap:10px;
  }
 
  [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease;}
  [data-reveal].in{opacity:1;transform:translateY(0);}
 
  @media (prefers-reduced-motion: reduce){
    *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
    [data-reveal]{opacity:1;transform:none;}
  }