.diag-demo { background: #f4f7f8; }
.diag-demo__tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 20px; }
.diag-demo__tabs button { min-height: 54px; min-width: 0; padding: 13px 16px; border: 1px solid #c7d6df; border-radius: 4px; background: #fff; color: #365567; font: inherit; font-size: 15px; font-weight: 650; line-height: 1.5; cursor: pointer; overflow-wrap: anywhere; }
.diag-demo__tabs button:hover { border-color: #176a92; color: #176a92; }
.diag-demo__tabs button[aria-pressed="true"] { border-color: #176a92; background: #176a92; color: #fff; }
.diag-demo :is(button,iframe):focus-visible { outline: 3px solid #8cc66d; outline-offset: 3px; }
.diag-demo__stage { position: relative; width: 100%; aspect-ratio: 16 / 9; min-width: 0; overflow: hidden; border: 1px solid #d5e0e7; border-radius: 8px; background: #e7edf2; }
.diag-demo__frame { position: absolute; inset: 0; display: block; width: 100%; height: 100%; border: 0; }
.diag-demo__placeholder { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px; padding: 24px; background: radial-gradient(ellipse at center, #f9fbfc, #e7edf2 75%); text-align: center; }
.diag-demo__wordmark { font-size: clamp(50px, 10vw, 120px); font-weight: 750; letter-spacing: -.04em; color: #c1d0da; line-height: 1; }
.diagnostics-page .diag-demo__placeholder p { margin: 0; color: #526b7d; font-size: 15px; line-height: 1.7; }
.diag-demo__pause { position: absolute; top: 16px; right: 16px; display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid #c1d0da; border-radius: 50%; background: #fffffff0; color: #244c63; cursor: pointer; }
.diag-demo__pause svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.diag-demo__status { margin: 0; }
.diagnostics-page .diag-demo__status:not(:empty) { margin-top: 12px; font-size: 14px; color: #526b7d; }
.diag-demo [hidden] { display: none !important; }
@media (max-width: 699px) {
  .diag-demo__tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-bottom: 14px; }
  .diag-demo__tabs button { min-height: 54px; padding: 10px; font-size: 13px; }
  .diag-demo__stage { aspect-ratio: 4 / 5; border-radius: 6px; }
  .diag-demo__pause { top: 10px; right: 10px; }
}
@media (min-width: 700px) and (max-width: 1023px) { .diag-demo__stage { aspect-ratio: 4 / 3; } }

.diag-demo__intro { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: end; gap: 24px 48px; margin-bottom: 28px; }
.diagnostics-page .diag-demo__eyebrow { margin: 0 0 12px; color: #176a92; font-size: 13px; font-weight: 650; line-height: 1.7; }
.diagnostics-page .diag-demo__intro h2 { margin: 0; color: #1b3545; font-size: clamp(26px,2.8vw,38px); line-height: 1.35; overflow-wrap: anywhere; }
.diagnostics-page .diag-demo__lead { margin: 0; color: #526573; font-size: 16px; line-height: 1.9; }
.diag-demo__experience { display: grid; grid-template-columns: minmax(0,1fr); align-items: start; gap: 20px; }
.diag-demo__readout { min-width: 0; padding: 24px; background: #e5f0f6; color: #23475c; border-top: 3px solid #176a92; border-radius: 6px; overflow-wrap: anywhere; }
.diag-demo[data-feature="fire"] .diag-demo__readout { background: #fff0e6; border-color: #c77b3f; }
.diag-demo[data-feature="safety"] .diag-demo__readout { background: #e9f3ee; border-color: #4f8868; }
.diag-demo[data-feature="wastewater"] .diag-demo__readout { background: #e7f1f2; border-color: #43868c; }
.diag-demo__phase-label { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 16px; color: #59788b; font-size: 12px; font-variant-numeric: tabular-nums; }
.diag-demo__direction { display: inline-block; margin-bottom: 14px; padding: 6px 10px; border: 1px solid #d7b693; border-radius: 4px; color: #976229; background: #fff9ed; font-size: 13px; font-weight: 700; line-height: 1.5; }
.diagnostics-page .diag-demo__readout h3 { margin: 0 0 14px; color: #1a425a; font-size: 21px; line-height: 1.5; }
.diagnostics-page .diag-demo__readout p { margin: 0; color: #476477; font-size: 14px; line-height: 1.85; }
.diagnostics-page .diag-demo__readout .diag-demo__flow-copy { margin-bottom: 16px; font-weight: 650; color: #176a92; }
.diag-demo__water { margin-top: 24px; padding-top: 20px; border-top: 1px solid #c1d7dc; }
.diag-demo__water h4 { margin: 0 0 14px; font-size: 16px; line-height: 1.5; }
.diag-demo__water dl { display: grid; gap: 0; margin: 0 0 16px; }
.diag-demo__water dl > div { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid #cfdee2; font-size: 12px; line-height: 1.6; }
.diag-demo__water dd { margin: 0; text-align: right; font-weight: 700; }
.diag-demo__badges { display: flex; flex-wrap: wrap; list-style: none; gap: 8px; margin: 20px 0 0; padding: 0; }
.diag-demo__badges li { padding: 6px 10px; background: #ffffffb8; border: 1px solid #bbd4c7; border-radius: 4px; font-size: 12px; line-height: 1.5; }
@media (min-width: 1100px) {
  .diag-demo[data-feature]:not([data-feature=""]) .diag-demo__experience { grid-template-columns: minmax(0,2.45fr) minmax(260px,1fr); }
  .diag-demo__stage { aspect-ratio: 4 / 3; }
}
@media (max-width: 1099px) {
  .diag-demo__readout { width: 100%; }
}
@media (max-width: 699px) {
  .diag-demo__intro { grid-template-columns: minmax(0,1fr); gap: 14px; margin-bottom: 20px; }
  .diagnostics-page .diag-demo__lead { font-size: 14px; line-height: 1.85; }
  .diag-demo__experience { gap: 14px; }
  .diag-demo__readout { padding: 20px; }
  .diagnostics-page .diag-demo__readout h3 { font-size: 19px; }
}

@media (max-width: 699px) {
  .diag-demo__experience {
    height: var(--diag-demo-screen-height, calc(100svh - 104px));
    grid-template-rows: auto minmax(0,1fr);
    gap: 10px;
    scroll-margin-top: var(--diag-demo-scroll-offset, 86px);
  }
  .diag-demo__readout {
    grid-row: 1;
    padding: 12px 14px;
    max-height: calc(var(--diag-demo-screen-height, 80svh) * .46);
    overflow-y: auto;
    overscroll-behavior-y: contain;
    scrollbar-width: thin;
  }
  .diag-demo__stage { grid-row: 2; height: 100%; min-height: 0; aspect-ratio: auto; }
  .diag-demo__phase-label { margin-bottom: 6px; font-size: 11px; }
  .diag-demo__direction { margin-bottom: 6px; padding: 3px 7px; font-size: 12px; }
  .diagnostics-page .diag-demo__readout h3 { margin-bottom: 6px; font-size: 16px; line-height: 1.4; }
  .diagnostics-page .diag-demo__readout p { font-size: 12px; line-height: 1.6; }
  .diagnostics-page .diag-demo__readout .diag-demo__flow-copy { margin-bottom: 6px; }
  .diag-demo__water { margin-top: 10px; padding-top: 8px; }
  .diag-demo__water h4 { margin-bottom: 6px; font-size: 13px; }
  .diag-demo__water dl { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 4px 14px; margin-bottom: 6px; }
  .diag-demo__water dl > div { grid-template-columns: minmax(0,1fr); gap: 2px; padding: 4px 0; font-size: 11px; }
  .diag-demo__water dd { text-align: left; }
  .diag-demo__badges { gap: 5px; margin-top: 8px; }
  .diag-demo__badges li { padding: 3px 6px; font-size: 11px; }
}