/* ---------- Docker section ---------- */
  .docker{background:linear-gradient(180deg,#F4F7FA 0%,#EAF1F8 100%);border-top:1px solid var(--line)}
  .docker-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
  .docker-grid>*{min-width:0}
  .why{display:grid;gap:14px;margin-top:1.4rem}
  .why>div{display:grid;grid-template-columns:36px 1fr;gap:12px;align-items:start}
  .why .g{width:36px;height:36px;border-radius:9px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:var(--html)}
  .why b{display:block;margin-bottom:.15rem}
  .why p{margin:0;font-size:.92rem;color:var(--ink-soft)}
  .term{background:var(--code-bg);border-radius:12px;box-shadow:0 24px 60px rgba(34,48,63,.18);overflow:hidden}
  .term .bar{display:flex;align-items:center;gap:6px;padding:9px 12px;background:#242F3D;border-bottom:1px solid #2E3A4A}
  .term .bar i{width:10px;height:10px;border-radius:50%;background:#3B4757;display:block}
  .term .bar i:first-child{background:var(--pdf)} .term .bar i:nth-child(2){background:#F1B33C} .term .bar i:nth-child(3){background:var(--html)}
  .term .bar span{margin-left:auto;font-family:var(--mono);font-size:.72rem;color:#8B98A8}
  .term pre{margin:0;padding:16px 18px;font-family:var(--mono);font-size:.78rem;line-height:1.55;color:var(--code-fg);overflow:auto;white-space:pre}
  .term .c{color:#8B98A8} .term .i{color:#7FB8F0} .term .s{color:#F5B266} .term .ok{color:#9FD8A8}
  .cmds{display:grid;gap:10px;margin-top:14px}
  .cmd{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-family:var(--mono);font-size:.8rem;overflow:auto}
  .cmd b{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--ink);color:#fff;font:700 .75rem var(--sans)}
  .arch{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
  .arch span{font-family:var(--mono);font-size:.75rem;font-weight:700;padding:.3rem .55rem;border-radius:5px;background:#fff;border:1px solid var(--line);color:var(--ink-soft)}
  @media (max-width:960px){.docker-grid{grid-template-columns:1fr}}
  /* ---------- Reveal on scroll ---------- */
  .js .reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
  .js .reveal.in{opacity:1;transform:none}
  .js .reveal.d1{transition-delay:.1s}.js .reveal.d2{transition-delay:.2s}.js .reveal.d3{transition-delay:.3s}.js .reveal.d4{transition-delay:.4s}
  @media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}
  .codecard{border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 20px 50px rgba(34,48,63,.10);background:#fff}
  .codecard .bar{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--line);background:var(--bg-alt);font-family:var(--mono);font-size:.78rem;color:var(--muted)}
  .codecard .bar i{width:10px;height:10px;border-radius:50%;background:#D5DBE2;display:block}
  .codecard .bar i:first-child{background:var(--pdf)} .codecard .bar i:nth-child(2){background:#F1B33C} .codecard .bar i:nth-child(3){background:var(--html)}
  .codecard .bar span{margin-left:6px}
  .codecard .foot{padding:12px 16px;font-size:.88rem;color:var(--ink-soft);border-top:1px solid var(--line)}
  .comp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
  .comp{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;color:var(--ink)}
  .comp:hover{text-decoration:none;border-color:var(--html);box-shadow:0 8px 24px rgba(34,48,63,.08)}
  .comp h3{font-size:1rem;margin-bottom:.35rem}
  .comp p{margin:0;font-size:.88rem;color:var(--ink-soft)}
  @media (max-width:960px){.comp-grid{grid-template-columns:1fr 1fr!important}}
  @media (max-width:600px){.comp-grid{grid-template-columns:1fr!important}}
/* download rows */
.dl-list{list-style:none;margin:0;padding:0}
.dl-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:.55rem 0;border-top:1px solid var(--line)}
.dl-list li:first-child{border-top:0}
.dl-list small{display:block;color:var(--muted);font-size:.8rem}
.dl-list .dl{flex:none;font-weight:600;font-size:.86rem;color:var(--html);text-decoration:none;border:1px solid var(--line);border-radius:6px;padding:.3rem .65rem;background:#fff}
.dl-list .dl::before{content:"\2193  ";font-weight:700}
.dl-list .dl:hover{border-color:var(--html);background:#E6F0FA}
.dl-card .card-title{margin:0 0 .4rem;font-weight:700;font-size:1.05rem;color:var(--ink)}
.dl-card .fineprint{margin:.8rem 0 0}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 28px;margin-top:.4rem}
.dl-grid li{border-top:1px solid var(--line)}
@media (max-width:960px){.dl-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.dl-grid{grid-template-columns:1fr}}