/* Life Finds a Way, v09: Load Test. A materials testing certificate. */
:root {
  --paper: #f4f3ee;
  --ink: #2a2b2d;
  --yellow: #f2c200;
  --steel: #8d8f8a;
  --green: #5f7f3a;
  --grid: rgba(42, 43, 45, .075);
  --line: 2px solid var(--ink);
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --cond: "IBM Plex Sans Condensed", "Arial Narrow", sans-serif;
  --gut: clamp(16px, 3vw, 40px);
}

* { box-sizing: border-box; }
html { overflow-x: clip; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 5mm 5mm;
  font-family: var(--cond);
  font-size: 18px;
  line-height: 1.5;
  overflow-x: clip;
}
a { color: inherit; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; box-shadow: 0 0 0 5px var(--ink); }

.tape {
  height: 14px;
  background: repeating-linear-gradient(45deg, var(--yellow) 0 14px, var(--ink) 14px 28px);
  border-bottom: var(--line);
}
.tape-foot { border-bottom: 0; border-top: var(--line); }

.k {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin: 0 0 8px;
  color: var(--ink);
}
.k-gap { margin-top: 26px; }

/* Letterhead */
.letterhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px var(--gut);
  border-bottom: var(--line);
  background: var(--paper);
}
.home {
  font-family: var(--cond);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .02em;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
}
.home::before {
  content: "";
  width: 18px; height: 18px;
  border: 2px solid var(--ink);
  background: linear-gradient(var(--yellow), var(--yellow)) center / 6px 6px no-repeat;
  flex: none;
}
.home:hover { text-decoration: underline; text-underline-offset: 4px; }
.meta { display: flex; gap: 26px; margin: 0; font-family: var(--mono); font-size: 13px; }
.meta div { display: flex; flex-direction: column; }
.meta dt { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; opacity: .62; }
.meta dd { margin: 0; font-weight: 500; }

main { padding: var(--gut); display: grid; gap: var(--gut); }
.box { border: var(--line); background: rgba(244, 243, 238, .86); }

/* Header block and bench share the first screen */
.top { display: grid; gap: var(--gut); }
.head { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); }
.head-main { padding: 26px 30px 30px; border-right: var(--line); }
.head-side { padding: 26px 30px 30px; }
h1 {
  font-family: var(--cond);
  font-weight: 700;
  font-size: clamp(54px, 8.6vw, 120px);
  line-height: .86;
  letter-spacing: -.015em;
  text-transform: uppercase;
  margin: 6px 0 22px;
}
.tagline { font-size: 22px; line-height: 1.35; margin: 0; max-width: 34ch; }
.lede { font-family: var(--mono); font-size: 18px; line-height: 1.5; margin: 0; }
.proc { margin-top: 10px; padding-top: 14px; border-top: 1px solid rgba(42,43,45,.3); }
.procedure { margin: 0; padding: 0; list-style: none; counter-reset: p; font-family: var(--mono); font-size: 14px; line-height: 1.4; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.procedure li { counter-increment: p; display: grid; grid-template-columns: 28px 1fr; }
.procedure li::before { content: counter(p, decimal-leading-zero); font-weight: 600; }
@media (min-width: 1180px) {
  .top { grid-template-columns: minmax(0, .82fr) minmax(0, 2.3fr); align-items: stretch; }
  .head { grid-template-columns: 1fr; align-content: start; }
  .head-main { border-right: 0; border-bottom: var(--line); padding: 24px 26px 26px; }
  .head-side { padding: 22px 26px 26px; }
  h1 { font-size: clamp(56px, 5.5vw, 92px); margin-bottom: 18px; }
  .tagline { font-size: 20px; }
  .lede { font-size: 17px; }
}

/* Bench: rig and instrument panel */
.bench { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(300px, 1fr); }
.rig { padding: 22px 22px 18px; border-right: var(--line); position: relative; }
#rig { display: block; width: 100%; height: auto; touch-action: pan-y; cursor: crosshair; user-select: none; -webkit-user-select: none; }
.svg-label { font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: .14em; fill: var(--ink); opacity: .72; pointer-events: none; }
.svg-label-dim { opacity: .45; font-size: 12px; }
.svg-label-light { fill: #e8dcc8; opacity: .55; font-size: 12px; }

.rail { display: flex; align-items: center; gap: 0; margin-top: 4px; position: relative; height: 44px; }
.rail .k { position: absolute; left: 0; top: 50%; transform: translateY(-50%); margin: 0; }
#probe {
  position: absolute;
  left: calc(19% - 14px);
  width: calc(62% + 28px);
  top: 50%;
  transform: translateY(-50%);
  margin: 0;
  height: 44px;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: ew-resize;
}
#probe::-webkit-slider-runnable-track { height: 8px; background: var(--steel); border: 2px solid var(--ink); }
#probe::-moz-range-track { height: 8px; background: var(--steel); border: 2px solid var(--ink); }
#probe::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 28px; height: 28px; margin-top: -12px;
  background: linear-gradient(90deg, transparent 12px, var(--ink) 12px 14px, transparent 14px), var(--yellow);
  border: 2px solid var(--ink);
}
#probe::-moz-range-thumb {
  width: 24px; height: 24px; border-radius: 0;
  background: linear-gradient(90deg, transparent 10px, var(--ink) 10px 12px, transparent 12px), var(--yellow);
  border: 2px solid var(--ink);
}

.panel { padding: 22px; display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.gauges { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.gauge { margin: 0; text-align: center; min-width: 0; }
.gauge svg { width: 100%; max-width: 210px; height: auto; display: block; margin: 0 auto; }
.gauge figcaption { margin-top: 6px; display: flex; flex-direction: column; align-items: center; }
.gauge figcaption .k { margin: 0 0 2px; font-size: 11px; }
.gauge output { font-family: var(--mono); font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; }

.readout { margin: 0; border-top: var(--line); }
.readout div { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; padding: 8px 0; border-bottom: 1px solid rgba(42,43,45,.25); align-items: baseline; }
.readout dt { font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.readout dd { margin: 0; font-family: var(--mono); font-size: 16px; font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
#result.is-pass { color: #fff; background: var(--green); padding: 0 8px; }
#result.is-stall { background: var(--yellow); padding: 0 8px; }

.controls { display: flex; align-items: center; gap: 18px; }
.hold {
  flex: none;
  width: 118px; height: 118px;
  border-radius: 50%;
  border: 3px solid var(--ink);
  background: radial-gradient(circle at 40% 35%, #ffe066, var(--yellow) 55%, #d9a900);
  box-shadow: 0 6px 0 var(--ink), inset 0 0 0 7px rgba(42,43,45,.12);
  font-family: var(--mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink);
  cursor: pointer;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
  transition: transform .08s, box-shadow .08s;
}
.hold span { display: block; padding: 0 16px; line-height: 1.25; }
.hold.is-down { transform: translateY(5px); box-shadow: 0 1px 0 var(--ink), inset 0 0 0 7px rgba(42,43,45,.2); }
.minor { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.textbtn {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  background: none;
  border: 0;
  padding: 8px 0;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
}
.textbtn[aria-pressed="true"] { background: var(--ink); color: var(--paper); text-decoration: none; padding: 8px 10px; }

/* Test record */
.record-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 18px 30px; border-bottom: var(--line); flex-wrap: wrap; }
.record-head h2 { font-family: var(--cond); text-transform: uppercase; font-size: 30px; margin: 0; letter-spacing: .01em; }
.record-head .k { margin: 0; }
.clauses { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.clause { padding: 26px 30px 34px; position: relative; }
.clause + .clause { border-left: var(--line); }
.clause h3 { font-family: var(--cond); font-weight: 700; font-size: 30px; line-height: 1.05; text-transform: uppercase; margin: 2px 0 14px; }
.clause p:not(.k) { margin: 0; font-size: 19px; line-height: 1.55; }

.stamp {
  position: absolute;
  right: 22px; top: 18px;
  border: 3px solid var(--green);
  color: var(--green);
  padding: 4px 12px 6px;
  font-family: var(--mono);
  text-transform: uppercase;
  text-align: center;
  line-height: 1.05;
  transform: rotate(-8deg) scale(1.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .25s cubic-bezier(.3, 1.6, .5, 1);
  background: rgba(244, 243, 238, .8);
}
.stamp span { display: block; font-size: 22px; font-weight: 600; letter-spacing: .12em; }
.stamp small { display: block; font-size: 10px; letter-spacing: .1em; }
.stamp.is-on { opacity: .92; transform: rotate(-8deg) scale(1); }

/* Annex */
.annex { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 1fr); gap: var(--gut); }
.annex-cell { padding: 22px 26px 26px; margin: 0; }
.details { list-style: none; margin: 0; padding: 0; counter-reset: d; font-family: var(--mono); font-size: 16px; }
.details li { counter-increment: d; display: grid; grid-template-columns: 34px 1fr; padding: 10px 0; border-top: 1px solid rgba(42,43,45,.25); }
.details li::before { content: counter(d, decimal-leading-zero); font-weight: 600; }
.clip-wrap { position: relative; padding-top: 10px; }
#photo { display: block; width: 100%; height: auto; border: 6px solid #fff; box-shadow: 0 1px 0 var(--ink), 0 10px 22px rgba(42,43,45,.18); transform: rotate(-1.2deg); filter: saturate(.85); }
.clip {
  position: absolute; z-index: 2; top: -6px; left: 28px;
  width: 22px; height: 58px;
  border: 3px solid #7d7f7a; border-radius: 11px;
  transform: rotate(-4deg);
}
.clip::after { content: ""; position: absolute; left: 3px; right: 3px; top: 10px; bottom: 6px; border: 3px solid #7d7f7a; border-top: 0; border-radius: 0 0 8px 8px; }
.refs dl { margin: 0; }
.refs dl div { padding: 10px 0; border-top: 1px solid rgba(42,43,45,.25); }
.refs dt { font-size: 16px; }
.refs dd { margin: 0; font-family: var(--mono); font-size: 22px; font-weight: 600; }
.refs .src, .refs dd.src { font-family: var(--mono); font-size: 12px; font-weight: 400; letter-spacing: .03em; opacity: .7; margin: 2px 0 0; }
.refs .note { margin: 14px 0 0; padding-top: 12px; border-top: 1px solid rgba(42,43,45,.25); font-size: 17px; }
.big-line { font-family: var(--cond); font-weight: 700; text-transform: uppercase; font-size: 26px; line-height: 1.05; margin: 16px 0 0; padding: 10px 12px; background: var(--yellow); border: var(--line); display: inline-block; }

/* Sign-off */
.signoff { padding: 20px 30px 26px; }
.signoff h2 { margin-bottom: 14px; }
.signoff-row { display: grid; grid-template-columns: 1fr 1fr 1.4fr; border-top: var(--line); }
.signoff .cell { padding: 16px 0 0; display: flex; flex-direction: column; gap: 4px; }
.signoff .cell + .cell { padding-left: 22px; border-left: 1px solid rgba(42,43,45,.3); }
.signoff .v { font-family: var(--mono); font-size: 22px; font-weight: 600; }
.signoff .act { flex-direction: row; align-items: center; flex-wrap: wrap; gap: 14px; }
.buy {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 14px 22px;
  background: var(--ink);
  color: var(--paper);
  border: var(--line);
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--yellow), 4px 4px 0 2px var(--ink);
}
.buy:hover { background: #000; }
.buy:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--yellow), 2px 2px 0 2px var(--ink); }
.buy-ok { margin: 0; font-family: var(--mono); font-size: 15px; font-weight: 600; }
.buy-ok:not(:empty) { border: 2px solid var(--green); color: var(--green); padding: 4px 10px; text-transform: uppercase; letter-spacing: .08em; transform: rotate(-2deg); }

/* Footer */
.foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; padding: 10px var(--gut) 34px; flex-wrap: wrap; }
.next { text-decoration: none; display: flex; flex-direction: column; border: var(--line); padding: 14px 20px; background: var(--paper); }
.next .k { margin: 0 0 2px; }
.next .t { font-family: var(--cond); font-weight: 700; font-size: 30px; text-transform: uppercase; line-height: 1.05; }
.next:hover { background: var(--yellow); }

/* Phone */
@media (max-width: 860px) {
  body { font-size: 17px; }
  .letterhead { padding: 12px 16px; }
  .meta { gap: 14px; font-size: 12px; }
  .meta div:last-child { display: none; }
  main { padding: 16px; gap: 16px; }
  .head { grid-template-columns: 1fr; }
  .head-main { border-right: 0; border-bottom: var(--line); padding: 18px 18px 22px; }
  .head-side { padding: 18px 18px 20px; }
  h1 { font-size: clamp(50px, 15.5vw, 74px); margin-bottom: 14px; }
  .tagline { font-size: 19px; }
  .lede { font-size: 17px; }
  .procedure { font-size: 15px; grid-template-columns: 1fr; gap: 8px; }
  .bench { grid-template-columns: 1fr; }
  .rig { border-right: 0; border-bottom: var(--line); padding: 12px 10px 8px; }
  .rail .k { font-size: 11px; }
  .panel { padding: 16px; }
  .gauges { gap: 10px; }
  .controls { justify-content: space-between; }
  .hold { width: 112px; height: 112px; }
  .record-head { padding: 14px 18px; }
  .record-head h2 { font-size: 24px; }
  .clauses { grid-template-columns: 1fr; }
  .clause { padding: 20px 18px 24px; }
  .clause + .clause { border-left: 0; border-top: var(--line); }
  .clause h3 { font-size: 26px; padding-right: 96px; }
  .clause p:not(.k) { font-size: 17px; }
  .stamp { right: 12px; top: 14px; }
  .stamp span { font-size: 17px; }
  .annex { grid-template-columns: 1fr; gap: 16px; }
  .annex-cell { padding: 18px; }
  .signoff { padding: 18px; }
  .signoff-row { grid-template-columns: 1fr 1fr; }
  .signoff .act { grid-column: 1 / -1; padding-left: 0 !important; border-left: 0 !important; border-top: 1px solid rgba(42,43,45,.3); margin-top: 14px; padding-top: 16px; }
  .next .t { font-size: 24px; }
  .foot { padding: 6px 16px 28px; }
}
@media (max-width: 380px) {
  .meta dt { display: none; }
  .hold { width: 100px; height: 100px; }
}

@media (prefers-reduced-motion: reduce) {
  .stamp, .hold, .buy { transition: none; }
}