:root{
    --bg:#F7F6F1;
    --surface:#FFFFFF;
    --ink:#1C1B17;
    --ink-muted:#726F63;
    --ink-faint:#A6A296;
    --accent:#2E6B5E;
    --accent-ink:#FFFFFF;
    --accent-soft:#E4EEEA;
    --border:#E6E2D6;
    --shadow:rgba(28,27,23,0.07);
    --danger:#B3492F;
  }
  @media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]){
      --bg:#15160F;
      --surface:#1D1E17;
      --ink:#F3F1E7;
      --ink-muted:#A8A492;
      --ink-faint:#716D5E;
      --accent:#7FCBB4;
      --accent-ink:#0C1B15;
      --accent-soft:#213028;
      --border:#33342A;
      --shadow:rgba(0,0,0,0.45);
      --danger:#E08769;
    }
  }
  :root[data-theme="dark"]{
    --bg:#15160F;
    --surface:#1D1E17;
    --ink:#F3F1E7;
    --ink-muted:#A8A492;
    --ink-faint:#716D5E;
    --accent:#7FCBB4;
    --accent-ink:#0C1B15;
    --accent-soft:#213028;
    --border:#33342A;
    --shadow:rgba(0,0,0,0.45);
    --danger:#E08769;
  }

  *{box-sizing:border-box;}
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:'Work Sans', system-ui, -apple-system, sans-serif;
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3{
    font-family:'Newsreader', Georgia, serif;
    font-weight:500;
    text-wrap:balance;
    margin:0;
    color:var(--ink);
  }
  .eyebrow{
    font-family:'JetBrains Mono', ui-monospace, monospace;
    font-size:0.72rem;
    letter-spacing:0.09em;
    text-transform:uppercase;
    color:var(--accent);
  }
  a{color:var(--accent);}
  p{margin:0;color:var(--ink-muted);white-space:pre-wrap;}

  .wrap{max-width:920px;margin:0 auto;padding-inline:24px;}

  /* ---------- nav ---------- */
  header.nav{
    position:sticky;
    top:env(safe-area-inset-top, 0px);
    z-index:40;
    background:color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--border);
  }
  .nav-row{
    display:flex;align-items:center;justify-content:space-between;
    padding-block:14px;gap:16px;flex-wrap:wrap;
  }
  .nav-name{font-family:'Newsreader',serif;font-size:1.05rem;font-weight:600;text-decoration:none;color:var(--ink);}
  .nav-links{display:flex;gap:22px;flex-wrap:wrap;}
  .nav-links a{
    color:var(--ink-muted);text-decoration:none;font-size:0.92rem;font-weight:500;
  }
  .nav-links a:hover{color:var(--accent);}

  /* ---------- hero ---------- */
  section.hero{padding-block:64px 48px;}
  .hero-grid{
    display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
  }
  @media (max-width:640px){.hero-grid{grid-template-columns:1fr;}}
  .hero h1{font-size:clamp(2.1rem,4.5vw,3.1rem);line-height:1.1;margin-top:10px;}
  .hero .role{font-size:1.15rem;color:var(--ink-muted);margin-top:10px;}
  .hero .bio{margin-top:20px;max-width:60ch;font-size:1rem;}
  .avatar-box{
    aspect-ratio:1;border-radius:18px;overflow:hidden;background:var(--surface);
    border:1px solid var(--border);display:flex;align-items:center;justify-content:center;
  }
  .avatar-box img{width:100%;height:100%;object-fit:cover;display:block;}
  .avatar-fallback{font-family:'Newsreader',serif;font-size:3rem;color:var(--ink-faint);}
  .link-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px;}
  .pill-link{
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 14px;border-radius:999px;border:1px solid var(--border);
    font-size:0.88rem;font-weight:500;text-decoration:none;color:var(--ink);
    background:var(--surface);
  }
  .pill-link:hover{border-color:var(--accent);color:var(--accent);}

  /* ---------- sections ---------- */
  section{padding-block:56px;border-top:1px solid var(--border);}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:1.6rem;margin-top:8px;}

  /* ---------- projects ---------- */
  .project-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
  @media (max-width:640px){.project-grid{grid-template-columns:1fr;}}
  .card{
    background:var(--surface);border:1px solid var(--border);border-radius:14px;
    padding:22px;display:flex;flex-direction:column;gap:10px;position:relative;
    box-shadow:0 1px 2px var(--shadow);
  }
  .card .thumb{
    width:100%;aspect-ratio:16/9;border-radius:9px;overflow:hidden;background:var(--accent-soft);
    margin-bottom:4px;display:block;
  }
  .card .thumb img{width:100%;height:100%;object-fit:cover;display:block;}
  .card h3{font-size:1.15rem;}
  .card h3 a, .card .thumb-link{color:inherit;text-decoration:none;}
  .card h3 a:hover{color:var(--accent);}
  .card .tagline{color:var(--ink-muted);font-size:0.94rem;}
  .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px;}
  .tag{
    font-family:'JetBrains Mono',monospace;font-size:0.7rem;letter-spacing:0.02em;
    padding:3px 8px;border-radius:6px;background:var(--accent-soft);color:var(--accent);
  }
  .card-link-row{display:flex;gap:14px;margin-top:4px;flex-wrap:wrap;}
  .card a.card-link{font-size:0.88rem;font-weight:600;text-decoration:none;}
  .coming-soon-card{align-items:center;justify-content:center;text-align:center;border-style:dashed;background:transparent;box-shadow:none;min-height:160px;}

  /* ---------- experience ---------- */
  .timeline{display:flex;flex-direction:column;gap:0;}
  .tl-item{
    display:grid;grid-template-columns:140px 1fr;gap:20px;
    padding-block:20px;border-top:1px solid var(--border);
  }
  .tl-item:first-child{border-top:none;}
  @media (max-width:560px){.tl-item{grid-template-columns:1fr;gap:4px;}}
  .tl-period{
    font-family:'JetBrains Mono',monospace;font-size:0.78rem;color:var(--ink-faint);
    padding-top:2px;
  }
  .tl-role{font-weight:600;font-size:1.02rem;}
  .tl-org{color:var(--accent);font-size:0.92rem;font-weight:500;}
  .tl-desc{margin-top:6px;font-size:0.94rem;}

  /* ---------- skills ---------- */
  .chip-row{display:flex;flex-wrap:wrap;gap:8px;}
  .chip{
    padding:7px 13px;border-radius:8px;background:var(--surface);border:1px solid var(--border);
    font-size:0.88rem;
  }
  .skill-category{margin-bottom:26px;}
  .skill-category:last-child{margin-bottom:0;}
  .skill-category-title{
    font-family:'JetBrains Mono',monospace;font-size:0.78rem;letter-spacing:0.02em;
    color:var(--ink-muted);margin-bottom:10px;font-weight:500;
  }
  .skill-category-edit-head{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
  .skill-category-edit-head .btn{flex:none;}

  /* ---------- contact ---------- */
  .contact-box{
    background:var(--surface);border:1px solid var(--border);border-radius:16px;
    padding:36px;text-align:center;
  }
  .contact-box .email{
    font-family:'JetBrains Mono',monospace;font-size:1.1rem;color:var(--accent);
    text-decoration:none;
  }
  .email-list{display:flex;flex-direction:column;align-items:center;gap:8px;}
  footer{padding-block:32px;text-align:center;color:var(--ink-faint);font-size:0.82rem;}

  /* ---------- project detail page ---------- */
  .detail-back{
    display:inline-flex;align-items:center;gap:6px;font-size:0.88rem;font-weight:600;
    text-decoration:none;color:var(--ink-muted);margin-bottom:22px;
  }
  .detail-back:hover{color:var(--accent);}
  .detail-hero-img{
    width:100%;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:var(--accent-soft);
    margin-top:28px;
  }
  .detail-hero-img img{width:100%;height:100%;object-fit:cover;display:block;}
  .video-wrap{
    position:relative;width:100%;aspect-ratio:16/9;border-radius:14px;overflow:hidden;
    background:#000;margin-top:24px;
  }
  .video-wrap iframe, .video-wrap video{position:absolute;inset:0;width:100%;height:100%;border:0;}
  .embed-wrap{
    position:relative;width:100%;aspect-ratio:16/10;border-radius:14px;overflow:hidden;
    background:#111;margin-top:24px;border:1px solid var(--border);
  }
  .embed-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0;}
  .embed-fallback{
    display:block;padding:40px 20px;text-align:center;border-radius:14px;margin-top:24px;
    border:1px dashed var(--border);color:var(--ink-muted);text-decoration:none;
  }
  .embed-fallback:hover{color:var(--accent);border-color:var(--accent);}
  .video-link-card{
    position:relative;display:block;width:100%;aspect-ratio:16/9;border-radius:14px;overflow:hidden;
    background:#000;text-decoration:none;
  }
  .video-link-card img{width:100%;height:100%;object-fit:cover;display:block;opacity:0.82;}
  .video-link-fallback{width:100%;height:100%;background:linear-gradient(135deg,#1c1b17,#333);}
  .video-link-play{
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
    width:64px;height:64px;border-radius:50%;background:rgba(0,0,0,0.55);
    color:#fff;font-size:1.4rem;display:flex;align-items:center;justify-content:center;
    padding-left:4px;
  }
  .video-link-label{
    position:absolute;left:16px;bottom:14px;color:#fff;font-family:'Work Sans',sans-serif;
    font-weight:600;font-size:0.92rem;text-shadow:0 1px 4px rgba(0,0,0,0.6);
  }
  .detail-gallery{display:flex;flex-direction:column;gap:14px;margin-top:24px;}
  .detail-gallery img{width:100%;border-radius:12px;display:block;height:auto;}
  .detail-body{margin-top:28px;max-width:70ch;display:flex;flex-direction:column;gap:16px;}
  .detail-body p{color:var(--ink);font-size:1rem;}
  .detail-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;}

body{margin:0;}
img{max-width:100%;}