/* A self-contained transmission instrument, tuned to the portfolio's midnight palette. */
.noise-lab {
  --night: var(--surface-inset);
  --panel: var(--surface);
  --scope-line: var(--line);
  --soft-text: var(--muted);
  --signal: var(--accent);
  --received: var(--dark);
  background: var(--night);
  color: var(--ink);
  border-radius: 65px 0 65px 0;
}
.noise-lab .section-pad { padding-top: 85px; padding-bottom: 85px; }
.noise-heading { display: flex; justify-content: space-between; gap: 30px; align-items: flex-end; margin-bottom: 45px; }
.noise-heading .eyebrow { color: var(--soft-text); font-size: 14px; margin-bottom: 24px; display: flex; align-items: center; gap: 13px; }
.noise-heading .eyebrow>span { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 7.8%, transparent); }
.noise-heading h2 { font-size: clamp(42px,4.7vw,66px); line-height: 1.07; }
.noise-heading h2 em { color: var(--signal); }
.noise-heading>p { font-size: 14px; line-height: 1.9; color: var(--soft-text); padding-bottom: 4px; }
.noise-instrument { display: grid; grid-template-columns: minmax(260px,.9fr) minmax(0,1.65fr); border: 1px solid var(--scope-line); border-radius: 10px; overflow: hidden; }
.noise-controls { background: var(--panel); padding: 31px; border-right: 1px solid var(--scope-line); }
.noise-index { font-size: 14px; color: var(--soft-text); }
.noise-controls h3 { font-size: 31px; line-height: 1.15; margin: 25px 0 18px; }
.noise-controls>p { font-size: 14px; line-height: 1.9; color: var(--soft-text); }
.message-choice-label { display: block; font-size: 14px; color: var(--soft-text); margin: 24px 0 9px; }
#message-choice { width: 100%; padding: 10px 12px; background: var(--surface-raised); color: var(--ink); border: 1px solid var(--line-strong); border-radius: 4px; font: 14px var(--body); color-scheme: inherit; }
.noise-dial { display: flex; justify-content: space-between; align-items: baseline; margin-top: 26px; }
.noise-dial label { font-size: 14px; }
#noise-value { color: var(--signal); font: 46px/1 var(--serif); letter-spacing: -.06em; }
#noise-value>span { font: 14px var(--body); margin-left: 4px; letter-spacing: 0; }
.noise-lab input[type=range] { accent-color: var(--signal); margin: 18px 0 9px; height: 17px; }
.noise-range-labels { display: flex; justify-content: space-between; color: var(--soft-text); font-size: 14px; }
.noise-presets { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 17px; }
.noise-presets button { font-size: 14px; padding: 7px 9px; border: 1px solid var(--line-strong); border-radius: 20px; color: var(--soft-text); }
.noise-presets [aria-pressed=true] { color: var(--signal); border-color: var(--signal); background: color-mix(in srgb, var(--accent) 5.5%, transparent); }
.noise-presets button:hover { border-color: var(--signal); color: var(--ink); }
.noise-send { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 14px 17px; margin-top: 25px; background: var(--signal); border-radius: 4px; color: var(--surface-inset); font-size: 14px; transition: background .2s; }
.noise-send>span:last-child { font-size: 24px; line-height: 1; }
.noise-send:hover:not(:disabled) { background: var(--accent); }
.noise-send:disabled { cursor: default; opacity: .7; }
.delivery-score { border-top: 1px solid var(--scope-line); margin-top: 27px; padding-top: 23px; }
.delivery-score>div:first-child { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.delivery-score .mono { font-size: 14px; color: var(--soft-text); }
#delivery-value { font: 38px/1 var(--serif); color: var(--received); }
#delivery-value>small { color: var(--soft-text); font: 16px var(--body); }
.delivery-track { height: 3px; background: var(--line); margin-top: 16px; }
.delivery-track>span { display: block; height: 100%; background: var(--received); transition: width .3s; }
.delivery-score>p { color: var(--soft-text); font-size: 14px; line-height: 1.8; margin-top: 13px; min-height: 36px; }
.noise-stage { min-width: 0; padding: 26px 32px 27px; }
.noise-stage-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; border-bottom: 1px solid var(--scope-line); padding-bottom: 20px; margin-bottom: 26px; }
.noise-stage-heading>.mono { font-size: 14px; color: var(--soft-text); }
#noise-motion { display: flex; align-items: center; gap: 9px; font-size: 14px; color: var(--soft-text); }
#noise-motion>span:first-child { display: grid; place-items: center; width: 28px; height: 28px; border: 1px solid var(--line-strong); border-radius: 50%; font-size: 14px; }
#noise-motion:hover:not(:disabled) { color: var(--signal); }
#noise-motion:disabled { cursor: default; }
.noise-row-label { font-size: 14px; color: var(--soft-text); }
.noise-tokens { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 15px; }
.noise-tokens>span { font: 14px/1.5 var(--mono); border: 1px solid var(--line-strong); border-radius: 5px; padding: 8px 10px; background: var(--surface-raised); letter-spacing: -.025em; }
.received-tokens>span { background: color-mix(in srgb, var(--dark) 4.3%, transparent); border-color: var(--line-strong); color: var(--received); }
.received-tokens>.lost { border-style: dashed; border-color: var(--accent); color: var(--signal); background: color-mix(in srgb, var(--accent) 5.5%, transparent); }
.received-tokens>.pending { color: var(--muted); border-style: dashed; background: transparent; }
.is-transmitting .received-tokens>.arrived { animation: word-arrive .35s ease-out; }
.noise-visual { position: relative; margin: 26px 0 29px; }
.noise-endpoints { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 14px; color: var(--received); }
.noise-endpoints i { font-style: normal; margin: 0 5px; color: var(--muted); }
.noise-channel-state { font-size: 14px; color: var(--signal); letter-spacing: .11em; }
#channel-scope { display: block; width: 100%; height: 177px; margin: 10px 0 7px; overflow: visible; }
.scope-grid { fill: none; stroke: var(--line); stroke-width: .5; opacity: .3; }
.scope-baseline { fill: none; stroke: var(--line-strong); stroke-width: .7; stroke-dasharray: 2 7; opacity: .5; }
.interference-zone { fill: color-mix(in srgb, var(--accent) 1.6%, transparent); stroke: color-mix(in srgb, var(--accent) 9.4%, transparent); stroke-width: 1; stroke-dasharray: 3 8; }
#noise-wave { fill: none; stroke: url(#wave-colors); stroke-width: 1.5; }
.wave-halo { fill: none; stroke: var(--signal); stroke-width: 7; opacity: .06; }
.scope-terminal { fill: var(--received); }
.flying-packet rect { fill: var(--received); stroke: var(--ink); stroke-width: .7; }
.flying-packet text { fill: var(--surface-inset); font: 14px var(--mono); }
.packet-lost rect { fill: var(--signal); stroke: var(--signal); }
.noise-legend { display: flex; flex-wrap: wrap; gap: 17px; font-size: 14px; color: var(--soft-text); align-items: center; }
.noise-legend>span { display: flex; align-items: center; gap: 6px; }
.noise-legend i { width: 5px; height: 5px; background: var(--received); border-radius: 50%; }
.noise-legend>span:nth-child(2) i { background: var(--signal); border-radius: 0; transform: rotate(45deg); }
.noise-legend>span:last-child { margin-left: auto; font: italic 14px var(--serif); color: var(--muted); }
.noise-row-heading { display: flex; justify-content: space-between; gap: 15px; }
#received-count { font-size: 14px; color: var(--signal); }
.noise-recovery { border-top: 1px solid var(--scope-line); margin-top: 30px; padding-top: 24px; }
.recovery-heading { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 13px; align-items: center; }
.recovery-heading>.mono { font-size: 14px; color: var(--soft-text); }
#reveal-context { font-size: 14px; color: var(--signal); border-bottom: 1px solid var(--surface-inset); padding-bottom: 4px; }
#reveal-context>span { margin-left: 9px; }
#reveal-context:disabled { opacity: .45; cursor: default; }
#recovered-message { font: italic 28px/1.25 var(--serif); letter-spacing: -.025em; color: var(--dark); margin-top: 22px; min-height: 70px; }
.context-revealed #recovered-message { color: var(--ink); }
.recovered-word { color: var(--signal); text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 6px; animation: context-in .55s ease-out; }
.context-caption { font-size: 14px; line-height: 1.8; color: var(--soft-text); margin-top: 12px; }
.noise-disclaimer { border-top: 1px solid color-mix(in srgb, var(--line) 53.3%, transparent); padding-top: 17px; font-size: 14px; line-height: 1.8; color: var(--muted); margin-top: 23px; max-width: 600px; }
.noise-lab :focus-visible { outline-color: var(--signal); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@keyframes word-arrive { from { opacity: .2; transform: translateY(5px); } to { opacity: 1; transform: none; } }
@keyframes context-in { from { opacity: .2; } to { opacity: 1; } }

@media (max-width:1100px) {
  .noise-controls { padding: 27px; }
  .noise-controls h3 { font-size: 29px; }
  .noise-stage { padding: 25px; }
  .noise-tokens>span { padding: 7px 8px; font-size: 14px; }
  .noise-legend>span:last-child { width: 100%; margin-left: 0; margin-top: 1px; }
  .noise-legend { gap: 10px 17px; }
  .recovery-heading { align-items: flex-start; }
}
@media (max-width:800px) {
  .noise-lab { border-radius: 45px 0; }
  .noise-lab .section-pad { padding-top: 60px; padding-bottom: 60px; }
  .noise-heading { gap: 25px; margin-bottom: 32px; }
  .noise-heading h2 { font-size: 42px; }
  .noise-heading>p { font-size: 14px; max-width: 155px; }
  .noise-heading>p br { display: none; }
  .noise-heading .eyebrow { font-size: 14px; }
  .noise-instrument { grid-template-columns: 240px minmax(0,1fr); }
  .noise-controls { padding: 25px 22px; }
  .noise-controls h3 { font-size: 26px; }
  .noise-controls>p { font-size: 14px; }
  .noise-index { font-size: 14px; }
  .noise-stage { padding: 22px; }
  .noise-stage-heading { gap: 10px; }
  .noise-stage-heading>.mono { font-size: 14px; }
  .motion-label { display: none; }
  .noise-tokens { gap: 5px; }
  .noise-tokens>span { padding: 6px; font-size: 14px; }
  .noise-channel-state { font-size: 14px; }
  #channel-scope { height: 165px; }
  .noise-presets { gap: 6px; }
  .noise-presets button { font-size: 14px; padding: 6px 8px; }
  #recovered-message { font-size: 25px; min-height: 90px; }
  .recovery-heading>.mono { font-size: 14px; }
}
@media (max-width:600px) {
  .noise-lab { border-radius: 32px 0; }
  .noise-heading { display: block; }
  .noise-heading h2 { font-size: 39px; }
  .noise-heading>p { max-width: 280px; font-size: 14px; margin-top: 22px; }
  .noise-heading .eyebrow { font-size: 14px; margin-bottom: 22px; }
  .noise-instrument { grid-template-columns: 1fr; }
  .noise-controls { border-right: 0; border-bottom: 1px solid var(--scope-line); padding: 25px; }
  .noise-controls h3 { font-size: 29px; margin: 19px 0 14px; }
  .noise-controls h3 br { display: none; }
  .noise-controls>p { font-size: 14px; }
  .noise-controls>p br { display: none; }
  .message-choice-label { margin-top: 21px; font-size: 14px; }
  #message-choice { padding: 12px; font-size: 14px; }
  .noise-dial { margin-top: 23px; }
  #noise-value { font-size: 49px; }
  .noise-presets { gap: 9px; }
  .noise-presets button { padding: 8px 10px; font-size: 14px; }
  .noise-send { padding: 16px; font-size: 14px; margin-top: 23px; }
  .delivery-score { margin-top: 23px; padding-top: 20px; }
  #delivery-value { font-size: 35px; }
  .delivery-score>p { min-height: 0; font-size: 14px; }
  .noise-stage { padding: 24px; }
  .noise-stage-heading { padding-bottom: 19px; margin-bottom: 23px; }
  .noise-stage-heading>.mono { font-size: 14px; }
  .motion-label { display: inline; font-size: 14px; }
  .noise-row-label { font-size: 14px; }
  .noise-tokens { gap: 6px; }
  .noise-tokens>span { font-size: 14px; padding: 7px 8px; }
  .noise-visual { margin: 24px 0 28px; }
  #channel-scope { height: 150px; }
  .noise-legend { font-size: 14px; gap: 13px 17px; }
  .noise-legend>span:last-child { font-size: 14px; }
  .noise-recovery { margin-top: 25px; padding-top: 22px; }
  #recovered-message { font-size: 27px; min-height: 90px; }
  .recovery-heading { gap: 15px; }
  .context-caption { font-size: 14px; }
  .noise-disclaimer { font-size: 14px; }
}
@media (max-width:360px) {
  .noise-heading h2 { font-size: 34px; }
  .noise-heading .eyebrow { font-size: 14px; gap: 10px; }
  .noise-controls,.noise-stage { padding: 23px 19px; }
  .noise-controls h3 { font-size: 27px; }
  .noise-presets { gap: 7px; }
  .noise-presets button { padding: 7px 8px; font-size: 14px; }
  .motion-label { display: none; }
  .noise-tokens>span { padding: 6px; font-size: 14px; }
  .noise-channel-state { font-size: 14px; }
  #recovered-message { font-size: 25px; }
}