:root {
  --bg: #ffffff;
  --paper: #ffffff;
  --tint: #f4f4f0;
  --ink: #121212;
  --muted: #62625d;
  --line: rgba(18, 18, 18, 0.14);
  --accent: #b9ff45;
  --amber: #8a5300;
  --amber-soft: #fff1d6;
  --green: #1f6b00;
  --green-soft: #e7f6d3;
  --red: #b3261e;
  --red-soft: #fde4e1;
  --display: "GC Neue Machine", Inter, Arial, sans-serif;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
.top {
  height: 56px;
  background: var(--tint);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 15px;
}
.top img {
  width: 96px;
  height: 36px;
  object-fit: contain;
}
.top-copy {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}
.top-copy span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.top-copy b {
  font-size: 14px;
  font-weight: 500;
}
.sample {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.shell {
  max-width: 1200px;
  margin: auto;
  padding: 40px 26px 64px;
}
.intro {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 40px;
  align-items: end;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--accent);
  border: 1px solid var(--ink);
}
.intro h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 14px 0 14px;
  text-wrap: balance;
}
.intro p {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 640px;
  margin: 0;
}
.controls {
  background: var(--tint);
  border-radius: 6px;
  padding: 16px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: end;
}
.controls label {
  grid-column: 1 / -1;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
select {
  display: block;
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
}
select:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
}
button {
  border: 1px solid var(--accent);
  border-radius: 4px;
  min-height: 40px;
  padding: 0 18px;
  background: var(--accent);
  color: var(--ink);
  font: inherit;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease;
}
button:hover,
button:focus-visible {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--accent);
}
button.ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}
button.ghost:hover,
button.ghost:focus-visible {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--accent);
}
.lead-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  margin: 28px 0 16px;
}
.lead-strip > div {
  background: #fff;
  padding: 14px 16px;
}
.lead-strip span {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.lead-strip b {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  font-weight: 500;
}
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.lane {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
.lane.manual {
  border-top: 3px solid #121212;
}
.lane.automated {
  border-top: 3px solid var(--accent);
}
.lane-head {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 14px;
}
.mode {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--muted);
}
.manual .mode {
  color: var(--amber);
}
.automated .mode {
  color: var(--green);
}
.lane-head h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.25rem;
  line-height: 1.15;
  margin: 8px 0 0;
  letter-spacing: -0.03em;
}
.result {
  height: max-content;
  border-radius: 3px;
  background: var(--tint);
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}
.result.good {
  background: var(--green-soft);
  color: var(--green);
}
.result.bad {
  background: var(--red-soft);
  color: var(--red);
}
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}
.metric {
  background: var(--tint);
  padding: 12px 16px;
}
.metric span {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.05em;
}
.metric b {
  display: block;
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin-top: 4px;
}
.timeline {
  padding: 8px 20px 14px;
  min-height: 360px;
}
.moment {
  position: relative;
  padding: 14px 10px 14px 34px;
  border-bottom: 1px solid var(--line);
  opacity: 0.3;
  transition: 0.25s;
  cursor: pointer;
}
.moment::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 19px;
  width: 11px;
  height: 11px;
  border: 2px solid #b9b9b2;
  background: #fff;
  border-radius: 50%;
}
.moment.on {
  opacity: 1;
}
.manual .moment.on::before {
  border-color: #121212;
  background: var(--amber-soft);
}
.automated .moment.on::before {
  border-color: #121212;
  background: var(--accent);
}
.moment:hover {
  background: var(--tint);
}
.moment .time {
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.moment b {
  font-size: 14px;
  font-weight: 500;
  display: block;
  margin: 2px 0;
}
.moment p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}
.inspect {
  margin: 0 20px 20px;
  border-radius: 0 4px 4px 0;
  border-left: 3px solid var(--accent);
  background: var(--tint);
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
  min-height: 58px;
}
.inspect strong {
  color: var(--ink);
  font-weight: 500;
}
.how {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--muted);
}
.how b {
  color: var(--ink);
  font-weight: 500;
}
.lane-head h2 {
  text-wrap: balance;
}
.calc {
  margin-top: 24px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 6px;
}
.calc-head h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  margin: 8px 0 18px;
  text-wrap: balance;
}
.calc-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.calc-in {
  display: grid;
  gap: 14px;
}
.calc-in label {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.calc-in label b {
  color: var(--ink);
  font-weight: 500;
}
.calc-in .hint {
  grid-column: 1 / -1;
  font-size: 12px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--muted);
}
.calc-in input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  accent-color: var(--ink);
}
.calc-out {
  padding: 20px;
  background: var(--ink);
  color: #fff;
  border-radius: 6px;
}
.calc-out span {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
}
.calc-out b {
  display: block;
  margin: 6px 0;
  font-family: var(--display);
  font-weight: 400;
  font-size: 2.6rem;
  letter-spacing: -0.04em;
  color: #ff6b5c;
}
.calc-out b::before {
  content: "";
  display: inline-block;
  width: 0.65em;
  height: 0.65em;
  margin-right: 0.18em;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ff6b5c' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 4v16M5 13l7 7 7-7'/%3E%3C/svg%3E") center / contain no-repeat;
}
.calc-out small {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}
.cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-top: 24px;
  padding: 22px 24px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
}
.cta b {
  display: block;
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.cta span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}
.cta .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  min-height: 38px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--accent);
  color: var(--ink);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease;
}
.cta .btn:hover,
.cta .btn:focus-visible {
  background: #fff;
  border-color: #fff;
  color: var(--ink);
}
@media (max-width: 700px) {
  .calc-body {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .cta {
    flex-direction: column;
    align-items: flex-start;
  }
}
.rt {
  margin-top: 24px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 6px;
}
.rt-head h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  margin: 8px 0 18px;
  text-wrap: balance;
}
.rt-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 28px;
  align-items: center;
}
.rt-in label {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.rt-in label b {
  color: var(--ink);
  font-weight: 500;
}
.rt-in input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  accent-color: var(--ink);
}
.rt-out {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}
.rt-out > div {
  padding: 12px 14px;
  background: var(--tint);
  border-radius: 6px;
}
.rt-out span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.rt-out b {
  display: block;
  margin-top: 2px;
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.8rem;
  letter-spacing: -0.03em;
}
.rt-out > div:first-child b {
  color: var(--red);
}
.rt-out > div:nth-child(2) b {
  color: var(--green);
}
.rt-out small {
  color: var(--muted);
}
.rt-chart svg {
  display: block;
  width: 100%;
  height: auto;
}
@media (max-width: 820px) {
  .rt-body {
    grid-template-columns: 1fr;
  }
}
.bottom {
  margin-top: 18px;
  background: var(--tint);
  color: var(--ink);
  border-radius: 6px;
  padding: 28px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 28px;
  align-items: center;
}
.bottom .eyebrow {
  color: var(--ink);
}
.bottom h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 10px 0 0;
}
.outcomes {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.outcomes span {
  border: 1px solid rgba(18, 18, 18, 0.28);
  border-radius: 999px;
  background: #fff;
  padding: 7px 13px;
  font-size: 12px;
  color: var(--ink);
}
@media (max-width: 900px) {
  .intro,
  .compare,
  .bottom {
    grid-template-columns: 1fr;
  }
  .controls {
    grid-template-columns: 1fr 1fr;
  }
  .controls label {
    grid-column: 1 / -1;
  }
  .lead-strip {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 560px) {
  .sample {
    display: none;
  }
  .shell {
    padding: 28px 16px 44px;
  }
  .lead-strip {
    grid-template-columns: 1fr;
  }
  .metrics {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .controls {
    grid-template-columns: 1fr;
  }
  .controls label {
    grid-column: auto;
  }
  .top {
    padding: 0 14px;
  }
  .top img {
    width: 84px;
  }
}