/* In-demand stack: monochrome logo tiles that take their brand colour on hover. */
.stack { padding: 2em 2em 5em; }
.stack-wrap { max-width: 1100px; margin: 0 auto; }
.stack-head { text-align: center; display: flex; flex-direction: column; align-items: center; gap: .8em; margin-bottom: 2.5em; }
.stack-head p.mn { color: var(--accent1); font-weight: 600; letter-spacing: .08em; }
.stack-head .ss { max-width: 38rem; }
.stack-group { display: grid; grid-template-columns: 11rem 1fr; gap: 1.25em; align-items: start; padding: 1.1em 0; border-top: 1px solid var(--line); }
.stack-group:last-child { border-bottom: 1px solid var(--line); }
.stack p.stack-label { font-family: supply-mono, monospace; text-transform: uppercase; font-size: .72rem; letter-spacing: .08em; color: var(--ink-3); padding-top: .75em; line-height: 1.4; }
.stack-grid { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5em; }
.stack-grid li { display: inline-flex; align-items: center; gap: .55em; padding: .5em .8em .5em .65em; border: 1px solid var(--line);
  border-radius: .75em; background: var(--surface); box-shadow: var(--shadow-sm); color: var(--ink);
  font-family: var(--read); font-size: .88rem; font-weight: 500; transition: border-color .2s, transform .2s, box-shadow .2s; }
.stack-grid li i { width: 1.15rem; height: 1.15rem; flex: none; background: currentColor; opacity: .85;
  -webkit-mask: var(--i) center / contain no-repeat; mask: var(--i) center / contain no-repeat; transition: background-color .2s, opacity .2s; }
.stack-grid li:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.stack-grid li:hover i { background: var(--brand); opacity: 1; }
@media (max-width: 760px) {
  .stack { padding: 1em 1em 4em; }
  .stack-group { grid-template-columns: 1fr; gap: .6em; }
  .stack p.stack-label { padding-top: 0; }
  .stack-grid li { font-size: .82rem; }
}
@media (prefers-reduced-motion: reduce) { .stack-grid li { transition: none; } }