.chain {
  padding:clamp(32px,6vh,72px) 0 0;
  position:relative;
  color:var(--ink)
}
.chain .label,.about .label {
  margin-bottom:28px
}
/* experience: a signal line that draws as you scroll, a node per role */
.exp {
  --draw:0;
  list-style:none;
  margin:0 0 clamp(80px,14vh,180px);
  padding:0 0 0 clamp(36px,6vw,80px);
  position:relative;
  display:grid;
  gap:clamp(36px,6vh,72px)
}
.exp::before,.exp::after {
  content:"";
  position:absolute;
  left:10px;
  top:6px;
  bottom:6px;
  width:2px
}
.exp::after {
  background:var(--signal);
  transform-origin:top;
  transform:scaleY(var(--draw))
}
.exp::before {
  background:var(--grid-2)
}
.exp li {
  position:relative;
  max-width:60ch
}
.exp li::before {
  content:"";
  position:absolute;
  left:calc(-1*clamp(36px,6vw,80px) + 5px);
  top:.6em;
  width:12px;
  height:12px;
  border:2px solid var(--ink);
  background:var(--bone);
  border-radius:50%
}
.exp .mono {
  display:block;
  margin-bottom:6px;
  color:var(--ink-2)
}
.exp h3 {
  font-size:clamp(28px,3vw,44px);
  line-height:1;
  font-weight:400;
  letter-spacing:-.01em;
  margin:0
}
.exp p {
  margin:8px 0 0;
  color:var(--ink-2)
}
/* patch bay */
.bay {
  margin-bottom:clamp(80px,14vh,180px)
}
.bay-grid {
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(40px,.8fr) minmax(0,.9fr);
  align-items:start
}
.bay ul {
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:8px
}
.jacks {
  grid-column:1
}
.sockets {
  grid-column:3;
  /* projects sit level with the middle of the skills, so cables fan both ways */
  align-self:center
}
.cables {
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  pointer-events:none;
  overflow:visible
}
.cable {
  fill:none;
  stroke:var(--signal);
  stroke-width:2.5;
  stroke-linecap:round
}
.jack {
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  min-height:44px;
  padding:0 14px;
  border:1px solid var(--ink);
  background:var(--bone-2);
  color:var(--ink);
  font:500 var(--fs-label)/1 var(--mono);
  letter-spacing:.08em;
  text-transform:uppercase;
  text-align:left;
  cursor:pointer;
  transition:background .25s,color .25s
}
.port {
  width:14px;
  height:14px;
  border-radius:50%;
  border:2px solid currentColor;
  background:var(--bone);
  flex:none;
  transition:background .25s,border-color .25s
}
.jack.on {
  background:var(--ink);
  color:var(--bone)
}
.jack.on .port,.socket.on .port {
  background:var(--signal);
  border-color:var(--signal)
}
.socket {
  width:100%;
  color:var(--ink);
  background:transparent;
  text-align:left;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:12px;
  min-height:44px;
  padding:0 14px;
  border:1px solid var(--ink);
  font:500 var(--fs-label)/1 var(--mono);
  letter-spacing:.08em;
  text-transform:uppercase;
  transition:border-color .25s,background .25s
}
.socket.on {
  border:1px solid var(--signal);
  background:var(--bone-2)
}
@media(max-width:767px) {
  .bay-grid {
    grid-template-columns:1fr;
    gap:20px
  }
  .jacks,.sockets {
    grid-column:1
  }
  .cables {
    display:none
  }
  .jacks {
    grid-template-columns:1fr 1fr
  }
}
/* contact */
.contact {
  position:relative
}
/* the message form: the letter itself is the big serif line, ruled like a page */
.msg {
  position:relative;
  margin:14px 0 clamp(12px,2vh,20px);
  max-width:64rem
}
.msg-text {
  display:block;
  width:100%;
  min-height:1.5em;
  padding:.1em 0 .25em;
  border:0;
  border-bottom:1px solid var(--ink);
  background:transparent;
  color:var(--ink);
  font-size:clamp(30px,4.6vw,64px);
  line-height:1.12;
  letter-spacing:-.02em;
  resize:none;
  overflow:hidden;
  caret-color:var(--signal);
  transition:border-color .25s,box-shadow .25s,opacity .45s,transform .45s cubic-bezier(.16,1,.3,1)
}
.msg-text::placeholder {
  color:color-mix(in srgb,var(--ink) 60%,transparent)
}
.msg-text:focus-visible {
  outline:none;
  border-bottom-color:var(--signal-ink);
  box-shadow:0 1px 0 var(--signal-ink)
}
.msg-row {
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:18px
}
.msg-from {
  flex:1 1 300px;
  display:flex;
  align-items:center;
  gap:14px;
  min-height:48px;
  padding:0 14px;
  border:1px solid var(--ink);
  font:500 var(--fs-label)/1 var(--mono);
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink-2);
  transition:border-color .25s,box-shadow .25s
}
.msg-from input {
  flex:1;
  min-width:0;
  padding:12px 0;
  border:0;
  background:transparent;
  color:var(--ink);
  /* 16px stops iOS zooming the page on focus */
  font:400 16px/1.2 var(--mono);
  letter-spacing:0;
  text-transform:none
}
.msg-from input::placeholder {
  color:color-mix(in srgb,var(--ink) 60%,transparent)
}
.msg-from input:focus-visible {
  outline:none
}
.msg-from:focus-within {
  border-color:var(--signal-ink);
  box-shadow:inset 0 0 0 1px var(--signal-ink)
}
.msg-from:has([aria-invalid=true]),.msg-text[aria-invalid=true] {
  border-color:var(--signal-ink)
}
.msg-send {
  min-height:48px;
  padding:0 26px;
  background:var(--ink);
  color:var(--bone)
}
@media(hover:hover) {
  .msg-send:hover {
    background:var(--signal-ink);
    border-color:var(--signal-ink);
    color:var(--bone)
  }
}
.msg-send:disabled {
  opacity:.5;
  pointer-events:none
}
.msg-status {
  min-height:1.5em;
  margin-top:12px;
  font-size:13px;
  letter-spacing:.02em;
  text-transform:none;
  color:var(--ink-2)
}
.msg-status.is-error {
  color:var(--signal-ink)
}
.msg-status.is-sent {
  color:var(--ink)
}
/* sending: the written line lifts off the page */
.msg.is-sending .msg-text {
  opacity:0;
  transform:translateY(-.35em)
}
/* sent: a receipt takes the letter's place */
.msg.is-sent .msg-text,.msg.is-sent .msg-row {
  display:none
}
.msg.is-sent .msg-status {
  position:absolute;
  width:1px;
  height:1px;
  overflow:hidden;
  clip-path:inset(50%)
}
.msg-receipt {
  padding:.1em 0 0;
  border-bottom:1px solid var(--ink);
  animation:receipt-in .7s cubic-bezier(.16,1,.3,1) both
}
.msg-receipt-head {
  font-size:clamp(30px,4.6vw,64px);
  line-height:1.12;
  letter-spacing:-.02em
}
.msg-receipt-meta {
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin:10px 0 18px;
  font-size:13px;
  letter-spacing:.02em;
  text-transform:none;
  color:var(--ink-2);
  overflow-wrap:anywhere
}
.msg-dot {
  flex:none;
  width:8px;
  height:8px;
  margin-top:.45em;
  border-radius:50%;
  background:var(--signal);
  animation:receipt-dot 1.2s .3s ease-out both
}
.msg-again {
  margin:0 0 14px;
  padding:10px 0;
  border:0;
  background:none;
  color:var(--ink);
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  text-decoration:underline;
  text-decoration-color:var(--signal);
  text-underline-offset:.3em
}
@keyframes receipt-in {
  from { opacity:0; transform:translateY(.4em) }
}
@keyframes receipt-dot {
  0% { box-shadow:0 0 0 0 color-mix(in srgb,var(--signal) 60%,transparent) }
  100% { box-shadow:0 0 0 12px transparent }
}
@media (prefers-reduced-motion:reduce) {
  .msg-receipt,.msg-dot { animation:none }
}
.msg-trap {
  position:absolute;
  width:1px;
  height:1px;
  overflow:hidden;
  clip-path:inset(50%);
  opacity:0;
  pointer-events:none
}
.msg-alt {
  margin-bottom:clamp(24px,4vh,40px);
  font-size:13px;
  letter-spacing:.02em;
  text-transform:none;
  color:var(--ink-2)
}
.msg-alt a {
  color:var(--ink);
  text-decoration:underline;
  text-decoration-color:var(--signal);
  text-underline-offset:.2em;
  /* a bigger target without moving the text */
  display:inline-block;
  padding:12px 8px;
  margin:-12px -8px
}
@media(max-width:520px) {
  .msg-send {
    flex:1 1 100%;
    justify-content:center
  }
}
.contact-row {
  display:flex;
  gap:12px;
  align-items:center;
  flex-wrap:wrap
}
.contact-row .mono {
  margin-left:auto;
  color:var(--ink-2)
}
.eot {
  margin:clamp(48px,8vh,100px) 0 0;
  text-align:center;
  color:var(--ink-2)
}
.flat-rule {
  height:2px;
  background:var(--signal);
  transform-origin:left;
  margin-top:12px
}
.foot {
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px 24px;
  margin-top:clamp(24px,4vh,48px);
  padding-block:20px;
  border-top:1px solid var(--ink);
  color:var(--ink-2)
}

.socket .planned {
  margin-left:auto;
  padding:2px 6px;
  border:1px dashed currentColor;
  font-size:10px;
  color:var(--ink-2)
}
.socket:focus-visible,.jack:focus-visible {
  outline:2px solid var(--signal);
  outline-offset:3px
}

/* dashed means not built yet, so only the planned project gets a dashed edge */
.socket:has(.planned) {
  border-style:dashed;
  border-color:var(--ink-2)
}
@media(max-width:480px) {
  .contact-row .mono {
    flex-basis:100%;
    margin-left:0
  }
  .jacks .nm {
    white-space:nowrap;
    font-size:10.5px
  }
}