:root{
    --bg:#0D0E11;
    --bg-alt:#17191D;
    --text:#EEECE4;
    --text-soft:#8D8F94;
    --cyan:#5FD6C6;
    --amber:#E8A33D;
    --line:#2B2D33;
    --line-soft:#212327;
    --nav-bg:rgba(13,14,17,0.78);
    --nav-bg-strong:rgba(10,11,13,0.88);
    --logo-filter:brightness(0) invert(1);
    --max:1180px;
    --gutter:clamp(20px,5vw,64px);
    color-scheme:dark light;
  }

  @media (prefers-color-scheme: light){
    :root{
      --bg:#F6F5F0;
      --bg-alt:#EBE8DF;
      --text:#191A1D;
      --text-soft:#6B6D72;
      --cyan:#0E7A72;
      --amber:#A6690F;
      --line:#DAD6CA;
      --line-soft:#E7E3D8;
      --nav-bg:rgba(246,245,240,0.8);
      --nav-bg-strong:rgba(250,249,245,0.92);
      --logo-filter:brightness(0);
    }
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
    .reveal{opacity:1 !important;transform:none !important;}
  }

  /* ---------- Scroll reveal ---------- */
  .reveal{
    opacity:0;
    transform:translateY(28px);
    transition:opacity 0.7s cubic-bezier(.16,.8,.24,1), transform 0.7s cubic-bezier(.16,.8,.24,1);
  }
  .reveal.is-visible{
    opacity:1;
    transform:translateY(0);
  }
  .reveal-stagger.is-visible .stagger-child{
    transition-delay:calc(var(--i, 0) * 70ms);
  }

  /* ---------- Scrub bar (top progress) ---------- */
  .scrub{
    position:fixed;
    top:0;left:0;right:0;
    height:2px;
    z-index:70;
    background:var(--line-soft);
  }
  .scrub-fill{
    height:100%;
    width:0%;
    background:linear-gradient(90deg, var(--amber), var(--cyan));
    transition:width 0.08s linear;
  }

  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'Inter',sans-serif;
    font-size:16px;
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
  }

  h1,h2,h3,.display{
    font-family:'Bricolage Grotesque',sans-serif;
    font-weight:700;
    letter-spacing:-0.01em;
    margin:0;
  }

  .mono{
    font-family:'IBM Plex Mono',monospace;
    font-size:13px;
    letter-spacing:0.02em;
  }

  a{color:inherit;}
  img{max-width:100%;display:block;}

  ::selection{background:var(--cyan);color:var(--bg);}

  a:focus-visible,
  button:focus-visible{
    outline:2px solid var(--cyan);
    outline-offset:3px;
  }

  .wrap{
    max-width:var(--max);
    margin:0 auto;
    padding-left:var(--gutter);
    padding-right:var(--gutter);
  }

  /* ---------- Nav ---------- */
  header.site-nav{
    position:fixed;
    top:0;left:0;right:0;
    z-index:60;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px var(--gutter);
    background:var(--nav-bg);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid var(--line);
    color:var(--text);
  }
  header.site-nav .mark{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:15px;letter-spacing:0.01em;text-decoration:none;}
  header.site-nav .mark img{display:block;width:64px;height:auto;filter:var(--logo-filter);}
  header.site-nav .nav-right{display:flex;align-items:center;gap:28px;}
  header.site-nav nav{display:flex;gap:28px;}
  header.site-nav nav a{
    font-size:13px;
    text-decoration:none;
    font-family:'IBM Plex Mono',monospace;
    color:var(--text-soft);
    transition:color 0.2s ease;
  }
  header.site-nav nav a:hover{color:var(--text);}
  header.site-nav nav a.active{
    color:var(--amber);
    position:relative;
  }
  header.site-nav nav a.active::after{
    content:'';
    position:absolute;
    left:0;right:0;
    bottom:-6px;
    height:1px;
    background:var(--amber);
  }
  header.site-nav .nav-tc{
    font-family:'IBM Plex Mono',monospace;
    font-size:11px;
    color:var(--text-soft);
    white-space:nowrap;
  }
  @media (max-width:640px){
    header.site-nav nav{gap:16px;}
    header.site-nav nav a span{display:none;}
    header.site-nav .nav-tc{display:none;}
  }

  /* anchor targets sit at the heading itself, not the padded section box,
     so nav clicks land right under the header instead of at a blank gap */
  .anchor-target{scroll-margin-top:92px;}


  /* ---------- Hero ---------- */
  .hero{
    min-height:100svh;
    display:flex;
    flex-direction:column;
    justify-content:flex-end;
    position:relative;
    padding-top:90px;
    padding-bottom:56px;
  }
  .hero .eyebrow-row{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    margin-bottom:18px;
    color:var(--text-soft);
  }
  .hero h1{
    font-size:clamp(3rem,11vw,8.2rem);
    line-height:0.92;
    text-transform:none;
    opacity:0;
    transform:translateY(24px);
    animation:heroTitleIn 0.8s cubic-bezier(.16,.8,.24,1) forwards;
    animation-delay:0.15s;
  }
  @keyframes heroTitleIn{
    to{opacity:1;transform:translateY(0);}
  }
  @media (prefers-reduced-motion:reduce){
    .hero h1{animation:none;opacity:1;transform:none;}
  }
  .hero .role{
    margin-top:20px;
    font-size:clamp(1.1rem,2.4vw,1.6rem);
    max-width:640px;
    color:var(--text-soft);
    font-weight:400;
    opacity:0;
    animation:fadeUp 0.8s cubic-bezier(.16,.8,.24,1) forwards;
    animation-delay:0.5s;
  }
  @keyframes fadeUp{
    from{opacity:0;transform:translateY(14px);}
    to{opacity:1;transform:translateY(0);}
  }
  @media (prefers-reduced-motion:reduce){
    .hero .role{animation:none;opacity:1;}
  }
  .hero .role strong{color:var(--text);font-weight:600;}

  .hero .footer-row{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    margin-top:56px;
    padding-top:20px;
    border-top:1px solid var(--line);
    color:var(--text-soft);
    gap:24px;
    flex-wrap:wrap;
  }
  .hero .footer-row .tc{color:var(--cyan);}
  .scroll-cue{
    display:flex;
    align-items:center;
    gap:10px;
  }
  .scroll-cue .dot{
    width:7px;height:7px;border-radius:50%;
    background:var(--cyan);
    animation:pulse 2.2s ease-in-out infinite;
  }
  @keyframes pulse{
    0%,100%{opacity:0.35;transform:scale(0.85);}
    50%{opacity:1;transform:scale(1);}
  }

  section{padding:168px 0;}
  @media (max-width:768px){section{padding:100px 0;}}

  .section-head{
    display:flex;
    justify-content:space-between;
    align-items:baseline;
    gap:24px;
    margin-bottom:40px;
    border-bottom:1px solid var(--line);
    padding-bottom:22px;
  }
  .section-head h2{font-size:clamp(1.8rem,4vw,2.8rem);}
  .section-head .mono{color:var(--text-soft);white-space:nowrap;}

  /* ---------- About ---------- */
  .about-grid{
    display:grid;
    grid-template-columns:1.1fr 0.9fr;
    gap:48px;
  }
  @media (max-width:860px){.about-grid{grid-template-columns:1fr;gap:32px;}}
  .about-grid p{
    font-size:clamp(1rem,1.4vw,1.15rem);
    line-height:1.5;
    max-width:54ch;
    color:var(--text);
  }
  .about-grid p + p{margin-top:14px;color:var(--text-soft);}

  .skills-col .skills-group{margin-bottom:20px;}
  .skills-col .skills-group:last-child{margin-bottom:0;}
  .skills-col h3{
    font-family:'IBM Plex Mono',monospace;
    font-size:12px;
    font-weight:500;
    color:var(--text-soft);
    margin-bottom:10px;
  }
  .tag-list{display:flex;flex-wrap:wrap;gap:6px;}
  .tag-list span{
    border:1px solid var(--line);
    padding:5px 11px;
    border-radius:2px;
    font-size:13px;
  }

  .about-meta{
    margin-top:22px;
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:14px 20px;
  }
  .about-meta div{border-top:1px solid var(--line-soft);padding-top:8px;}
  .about-meta .k{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--text-soft);margin-bottom:3px;}
  .about-meta .v{font-size:14px;}

  /* ---------- Works ---------- */
  .works-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:2px;
    background:var(--line);
    border:1px solid var(--line);
  }
  @media (max-width:760px){.works-grid{grid-template-columns:1fr;}}

  .frame{
    background:var(--bg-alt);
    padding:30px clamp(20px,3vw,36px);
    min-height:250px;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    position:relative;
    transition:background 0.25s ease;
  }
  .frame:hover{background:var(--bg);}
  .frame .fr-top{display:flex;justify-content:space-between;align-items:flex-start;}
  .frame .fr-num{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--text-soft);}
  .frame .fr-tag{
    font-family:'IBM Plex Mono',monospace;
    font-size:11px;
    border:1px dashed var(--text-soft);
    color:var(--text-soft);
    padding:4px 8px;
    border-radius:2px;
  }
  .frame h3{
    font-size:clamp(1.5rem,2.6vw,2.1rem);
    margin-top:28px;
    line-height:1.05;
  }
  .frame p{
    margin:14px 0 0;
    color:var(--text-soft);
    font-size:14.5px;
    max-width:42ch;
  }
  .frame .fr-market{
    margin-top:22px;
    font-family:'IBM Plex Mono',monospace;
    font-size:12px;
    color:var(--cyan);
  }

  /* ---------- Clients marquee ---------- */
  .clients{margin-top:56px;}
  .clients-label{color:var(--text-soft);margin-bottom:20px;}
  .marquee{
    width:100%;
    overflow:hidden;
    -webkit-mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  }
  .marquee-track{
    display:flex;
    align-items:center;
    gap:clamp(40px,6vw,80px);
    width:max-content;
    animation:marquee 48s linear infinite;
  }
  .marquee:hover .marquee-track{animation-play-state:paused;}
  .marquee.is-draggable{cursor:grab;touch-action:pan-y;user-select:none;}
  .marquee.is-dragging{cursor:grabbing;}
  .marquee.is-draggable .marquee-track{position:relative;animation:none;flex-wrap:nowrap;width:max-content;}
  .marquee.is-draggable .marquee-track span[aria-hidden="true"]{display:flex;}
  .marquee.is-draggable img{-webkit-user-drag:none;}
  .marquee.is-draggable:focus-visible{outline:2px solid var(--cyan);outline-offset:6px;}
  @keyframes marquee{
    from{transform:translateX(0);}
    to{transform:translateX(-50%);}
  }
  .client-logo{
    display:flex;
    align-items:center;
    justify-content:center;
    height:48px;
    width:128px;
    flex:none;
  }
  .client-logo img{
    max-height:100%;
    max-width:100%;
    width:auto;
    height:auto;
    object-fit:contain;
    filter:var(--logo-filter);
    opacity:0.5;
    transition:opacity 0.25s ease;
  }
  .client-logo:hover img{
    opacity:1;
  }
  .client-logo--text{
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    font-family:'Bricolage Grotesque',sans-serif;
    font-weight:700;
    font-size:1.1rem;
    color:var(--text);
    letter-spacing:-0.01em;
    opacity:0.5;
    transition:opacity 0.2s ease;
  }
  .client-logo--text:hover{opacity:1;}
  .client-logo--add{
    width:auto;
    font-family:'IBM Plex Mono',monospace;
    font-weight:400;
    font-size:13px;
    white-space:nowrap;
    border:1px dashed var(--line);
    padding:8px 14px;
    border-radius:3px;
    color:var(--text-soft);
  }
  @media (prefers-reduced-motion:reduce){
    .marquee-track{animation:none;flex-wrap:wrap;width:100%;}
    .marquee-track span[aria-hidden="true"]{display:none;}
  }

  /* ---------- Resume ---------- */
  .resume-top{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:24px;
    flex-wrap:wrap;
    margin-bottom:8px;
  }
  .btn{
    display:inline-flex;
    align-items:center;
    gap:10px;
    background:var(--text);
    color:var(--bg);
    text-decoration:none;
    padding:14px 22px;
    font-family:'IBM Plex Mono',monospace;
    font-size:13px;
    border:1px solid var(--text);
    border-radius:2px;
    transition:background 0.2s ease, color 0.2s ease;
  }
  .btn:hover{background:transparent;color:var(--text);}

  .timeline{margin-top:44px;}
  .tl-item{
    display:grid;
    grid-template-columns:140px 1fr;
    gap:28px;
    padding:24px 0;
    border-top:1px solid var(--line);
  }
  .tl-item:last-child{border-bottom:1px solid var(--line);}
  @media (max-width:680px){.tl-item{grid-template-columns:1fr;gap:10px;}}
  .tl-date{
    font-family:'IBM Plex Mono',monospace;
    font-size:13px;
    color:var(--cyan);
  }
  .tl-content h3{font-size:1.3rem;margin-bottom:2px;}
  .resume-toggle{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    width:100%;padding:4px 0;border:0;background:transparent;color:inherit;
    font:inherit;text-align:left;cursor:pointer;
  }
  .resume-toggle::after{content:'+';font-size:1.2rem;font-weight:400;color:var(--cyan);}
  .resume-toggle[aria-expanded="true"]::after{content:'−';}
  .resume-details{
    display:grid;grid-template-rows:0fr;opacity:0;visibility:hidden;
    transition:grid-template-rows 380ms cubic-bezier(.22,1,.36,1),opacity 240ms ease,visibility 0s 380ms;
  }
  .resume-details-inner{min-height:0;overflow:hidden;}
  .resume-details.is-open{
    grid-template-rows:1fr;opacity:1;visibility:visible;
    transition:grid-template-rows 380ms cubic-bezier(.22,1,.36,1),opacity 280ms ease,visibility 0s;
  }
  @media (prefers-reduced-motion:reduce){.resume-details,.resume-details.is-open{transition:none;}}
  @media print{.resume-details{grid-template-rows:1fr;opacity:1;visibility:visible;}.resume-toggle::after{display:none;}}
  .tl-content .org{color:var(--text-soft);font-size:14.5px;margin-bottom:14px;}
  .tl-content ul{margin:0;padding-left:18px;color:var(--text-soft);font-size:14.5px;}
  .tl-content li{margin-bottom:6px;}
  .tl-content li::marker{color:var(--amber);}

  .edu-lang{
    margin-top:8px;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:40px;
  }
  @media (max-width:680px){.edu-lang{grid-template-columns:1fr;gap:32px;}}
  .edu-lang h3{
    font-family:'IBM Plex Mono',monospace;
    font-size:13px;
    font-weight:500;
    color:var(--text-soft);
    margin-bottom:16px;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .edu-item{margin-bottom:16px;}
  .edu-item .deg{font-size:16px;font-weight:600;font-family:'Bricolage Grotesque',sans-serif;}
  .edu-item .sc{color:var(--text-soft);font-size:14px;}

  /* ---------- Contact ---------- */
  .contact-inner{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    width:100%;
  }
  .contact-inner h2{
    font-size:clamp(2rem,5.4vw,3.8rem);
    line-height:1.05;
    max-width:16ch;
  }

  .contact-split{
    margin-top:64px;
    padding-top:48px;
    border-top:1px solid var(--line);
    width:100%;
    display:grid;
    grid-template-columns:0.85fr 1.15fr;
    gap:56px;
  }
  @media (max-width:860px){.contact-split{grid-template-columns:1fr;gap:40px;}}

  .contact-meta{display:flex;flex-direction:column;gap:32px;}
  .cm-block .k{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--text-soft);margin-bottom:8px;letter-spacing:0.03em;}
  .cm-block .v{font-size:18px;}

  .contact-icons{display:flex;gap:12px;flex-wrap:wrap;}
  .c-icon-btn{
    position:relative;
    display:flex;
    align-items:center;
    justify-content:center;
    width:48px;height:48px;
    border:1px solid var(--line);
    border-radius:50%;
    color:var(--text-soft);
    text-decoration:none;
    transition:color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  }
  .c-icon-btn svg{width:18px;height:18px;}
  .c-icon-btn:hover,
  .c-icon-btn:focus-visible{
    color:var(--cyan);
    border-color:var(--cyan);
    transform:translateY(-3px);
  }
  .c-icon-btn::after{
    content:attr(data-tip);
    position:absolute;
    bottom:calc(100% + 10px);
    left:50%;
    transform:translate(-50%,4px);
    background:var(--bg-alt);
    border:1px solid var(--line);
    color:var(--text);
    font-family:'IBM Plex Mono',monospace;
    font-size:11px;
    letter-spacing:0.03em;
    white-space:nowrap;
    padding:6px 10px;
    border-radius:3px;
    opacity:0;
    pointer-events:none;
    transition:opacity 0.18s ease, transform 0.18s ease;
  }
  .c-icon-btn:hover::after,
  .c-icon-btn:focus-visible::after{
    opacity:1;
    transform:translate(-50%,0);
  }

  /* ---------- Contact form ---------- */
  .contact-form{display:flex;flex-direction:column;gap:22px;}
  .cf-row.cf-two{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
  @media (max-width:480px){.cf-row.cf-two{grid-template-columns:1fr;}}
  .cf-field{display:flex;flex-direction:column;gap:8px;}
  .cf-field label{
    font-family:'IBM Plex Mono',monospace;
    font-size:12px;
    color:var(--text-soft);
    letter-spacing:0.03em;
  }
  .cf-field input,
  .cf-field select,
  .cf-field textarea{
    background:transparent;
    border:none;
    border-bottom:1px solid var(--line);
    color:var(--text);
    font-family:'Inter',sans-serif;
    font-size:16px;
    padding:8px 2px;
    outline:none;
    transition:border-color 0.2s ease;
    resize:vertical;
  }
  .cf-field select{
    appearance:none;
    -webkit-appearance:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238D8F94' stroke-width='1.6'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat:no-repeat;
    background-position:right 2px center;
    background-size:16px;
    padding-right:24px;
  }
  .cf-field select option{background:var(--bg-alt);color:var(--text);}
  .cf-field input:focus,
  .cf-field select:focus,
  .cf-field textarea:focus{border-color:var(--cyan);}
  .cf-submit{
    align-self:flex-start;
    margin-top:6px;
    cursor:pointer;
  }
  .cf-note{color:var(--text-soft);margin:0;}

  /* ---------- Big contact display ---------- */
  .contact-big{
    margin-top:72px;
    padding-top:36px;
    border-top:1px solid var(--line);
    width:100%;
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    align-items:baseline;
    gap:16px 32px;
  }
  .contact-big a{
    font-family:'Bricolage Grotesque',sans-serif;
    font-weight:700;
    text-decoration:none;
    color:var(--text);
    transition:color 0.2s ease;
  }
  .contact-big a:hover{color:var(--amber);}
  .cb-email{font-size:clamp(1.3rem,3.4vw,2rem);}
  .cb-phone{font-size:clamp(1.3rem,3.4vw,2rem);}

  footer{
    padding:26px var(--gutter) 40px;
    display:flex;
    justify-content:space-between;
    color:var(--text-soft);
    font-family:'IBM Plex Mono',monospace;
    font-size:12px;
    flex-wrap:wrap;
    gap:10px;
  }
/* Form readability, keyboard focus, and narrow-screen overflow. */
.cf-field, .contact-form, .contact-meta, .contact-big { min-width: 0; }
.cf-field input, .cf-field select, .cf-field textarea { width: 100%; box-sizing: border-box; }
.cf-field label { font-size: 14px; }
.contact-big a { overflow-wrap: anywhere; max-width: 100%; }
.cf-submit { white-space: normal; max-width: 100%; }
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* Contact: left-aligned form, followed by social links. */
.contact-split {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  border-top: 0;
  padding-top: 0;
  margin-top: 40px;
}
.contact-split .contact-form { width: min(100%, 760px); }
.contact-split .contact-icons { justify-content: flex-start; }
.contact-availability { margin: 0; color: var(--text-soft); }

/* Short orange accent beneath the contact heading. */
.contact-heading-accent {
  width: 72px;
  height: 6px;
  margin-top: 24px;
  background: #f59e0b;
  border-radius: 1px;
  flex-shrink: 0;
}

/* Reveal the original asset colors when hovering a client logo in light mode. */
@media (prefers-color-scheme: light) {
  .client-logo img { transition: opacity 0.25s ease, filter 0.25s ease; }
  .client-logo:hover img,
  .client-logo:focus-within img {
    filter: none;
    opacity: 1;
  }
}

/* Halve the vertical padding around content sections. */
main > section:not(.hero) { padding-top: 84px; padding-bottom: 84px; }
@media (max-width: 768px) {
  main > section:not(.hero) { padding-top: 50px; padding-bottom: 50px; }
}