:root {
  --paper: oklch(96.8% 0.015 83);
  --paper-raised: oklch(99% 0.008 83);
  --ink: oklch(15% 0.025 52);
  --muted: oklch(43% 0.025 52);
  --rule: oklch(74% 0.028 79);
  --yellow: oklch(84% 0.18 88);
  --green: oklch(90% 0.065 148);
  --blue: oklch(89% 0.06 238);
  --violet: oklch(91% 0.055 304);
  --focus: oklch(45% 0.17 250);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(
        90deg,
        color-mix(in oklch, var(--rule) 34%, transparent) 1px,
        transparent 1px
      )
      0 0 / 4rem 100%,
    var(--paper);
  font-family: "Manrope", sans-serif;
  font-size: 1rem;
  line-height: 1.55;
}

code {
  font: inherit;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 0.9rem;
  color: var(--paper);
  background: var(--ink);
  font-size: 0.78rem;
  font-weight: 800;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

main {
  padding: clamp(0.9rem, 3vw, 3.5rem);
}

.sheet {
  max-width: 106rem;
  margin: 0 auto;
  border: 1px solid var(--ink);
  background: var(--paper-raised);
  box-shadow: clamp(0.35rem, 1vw, 0.75rem) clamp(0.35rem, 1vw, 0.75rem) 0
    var(--ink);
}

.tool h2,
.tool-question,
.source-note,
.process-pass h2,
.process-pass h3,
.process-pass p,
.error-panel h1,
.error-code {
  margin: 0;
}

.tool {
  --tool-color: var(--yellow);
  display: grid;
  grid-template-columns: minmax(22rem, 0.72fr) minmax(0, 1.28fr);
  min-height: 31rem;
  border-bottom: 1px solid var(--ink);
}

.tool-autoreview {
  --tool-color: var(--blue);
}

.tool-ramp-pr {
  --tool-color: var(--violet);
}

.tool-command {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(1.35rem, 3vw, 3.5rem);
  border-right: 1px solid var(--ink);
  background: color-mix(in oklch, var(--tool-color) 78%, var(--paper-raised));
}

.tool-number {
  display: grid;
  width: 3.2rem;
  height: 3.2rem;
  margin-bottom: clamp(2rem, 5vw, 5rem);
  place-items: center;
  border: 1px solid var(--ink);
  background: var(--paper-raised);
  font-size: 0.83rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.tool h2 {
  max-width: 14ch;
  font-size: clamp(2.25rem, 4.4vw, 5.4rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.92;
  overflow-wrap: anywhere;
}

.source-link {
  display: inline-block;
  margin-top: auto;
  padding: 0.72rem 0.85rem;
  border: 1px solid var(--ink);
  background: var(--yellow);
  box-shadow: 0.22rem 0.22rem 0 var(--ink);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.source-link:hover {
  box-shadow: 0.08rem 0.08rem 0 var(--ink);
  transform: translate(0.14rem, 0.14rem);
}

.source-note {
  max-width: 34rem;
  margin-top: 1.25rem;
  color: color-mix(in oklch, var(--ink) 75%, var(--tool-color));
  font-size: 0.82rem;
  font-weight: 650;
}

.tool-detail {
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: clamp(1.35rem, 3vw, 3.5rem);
}

.tool-question {
  max-width: 26ch;
  font-size: clamp(1.55rem, 2.6vw, 3.2rem);
  font-weight: 750;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.tool-points {
  display: grid;
  gap: 0;
  margin: clamp(2rem, 4vw, 4.5rem) 0;
  padding: 0;
  list-style: none;
  counter-reset: point;
}

.tool-points li {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--rule);
  counter-increment: point;
}

.tool-points li:last-child {
  border-bottom: 1px solid var(--rule);
}

.tool-points li::before {
  content: "0" counter(point);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.tool-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  border: 1px solid var(--ink);
}

.tool-facts div {
  min-width: 0;
  padding: 0.9rem;
}

.tool-facts div + div {
  border-left: 1px solid var(--ink);
}

.tool-facts dt {
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tool-facts dd {
  margin: 0;
  font-size: 0.83rem;
  font-weight: 700;
  line-height: 1.4;
}

.process-pass {
  --pass-background: var(--ink);
  --pass-foreground: var(--paper);
  padding: clamp(1.4rem, 4vw, 4.5rem);
  color: var(--pass-foreground);
  background: var(--pass-background);
}

.process-before {
  --pass-background: var(--green);
  --pass-foreground: var(--ink);
  border-bottom: 1px solid var(--ink);
}

.process-after {
  --pass-background: color-mix(
    in oklch,
    var(--yellow) 30%,
    var(--paper-raised)
  );
  --pass-foreground: var(--ink);
}

.process-pass h2 {
  max-width: 14ch;
  margin-bottom: clamp(2.5rem, 5vw, 5.5rem);
  font-size: clamp(2.6rem, 5.4vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.step-path {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(2.5rem, 3.6vw, 4rem);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.process-before .step-path {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.step-path li {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 18rem;
  flex-direction: column;
  padding: clamp(1rem, 1.7vw, 1.6rem);
  border: 1px solid currentcolor;
  counter-increment: step;
}

.process-before .step-path li,
.process-after .step-path li {
  color: var(--ink);
  background: var(--paper-raised);
  box-shadow: 0.38rem 0.38rem 0 var(--ink);
}

.step-path li::before {
  content: "0" counter(step);
  display: grid;
  width: 3rem;
  height: 3rem;
  margin-bottom: clamp(1.5rem, 2.5vw, 2.6rem);
  place-items: center;
  border: 1px solid currentcolor;
  font-size: 0.72rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.process-before .step-path li::before {
  background: var(--green);
}

.process-after .step-path li::before {
  color: var(--ink);
  background: var(--yellow);
}

.step-path li:not(:last-child)::after {
  content: "→";
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -2.55rem;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  transform: translateY(-50%);
}

.step-prompt h3 {
  font-size: clamp(1.25rem, 1.75vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.step-prompt > p {
  margin-top: 0.5rem;
  font-size: clamp(0.9rem, 1.05vw, 1.05rem);
  font-weight: 700;
  line-height: 1.35;
}

.step-how {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid color-mix(in oklch, currentcolor 25%, transparent);
}

.step-how > span {
  display: block;
  margin-bottom: 0.4rem;
  color: color-mix(in oklch, currentcolor 58%, var(--pass-background));
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.step-how strong {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.82rem;
  font-weight: 800;
}

.step-how p {
  color: color-mix(in oklch, currentcolor 78%, var(--pass-background));
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1.45;
}

.error-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
}

.error-panel {
  width: min(52rem, 100%);
  padding: clamp(1.5rem, 6vw, 5rem);
  border: 1px solid var(--ink);
  background: var(--paper-raised);
  box-shadow: clamp(0.35rem, 1vw, 0.75rem) clamp(0.35rem, 1vw, 0.75rem) 0
    var(--ink);
}

.error-code {
  margin-bottom: 3rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 800;
}

.error-panel h1 {
  max-width: 12ch;
  margin-bottom: 3rem;
  font-size: clamp(2.5rem, 7vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.92;
}

.error-panel a {
  display: inline-block;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--ink);
  background: var(--yellow);
  box-shadow: 0.22rem 0.22rem 0 var(--ink);
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .process-pass h2 {
    max-width: none;
  }

  .step-path,
  .process-before .step-path {
    grid-template-columns: 1fr;
    gap: 3.8rem;
  }

  .step-path li {
    min-height: 17rem;
  }

  .step-path li:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -3rem;
    transform: translateX(50%);
  }

  .tool {
    grid-template-columns: 1fr;
  }

  .tool-command {
    min-height: 27rem;
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .tool h2 {
    max-width: 18ch;
  }
}

@media (max-width: 560px) {
  main {
    padding: 0;
  }

  .sheet {
    border-right: 0;
    border-left: 0;
    box-shadow: none;
  }

  .tool {
    min-height: auto;
  }

  .tool-command {
    min-height: 22rem;
  }

  .tool h2 {
    font-size: clamp(2.25rem, 13vw, 4rem);
  }

  .tool-facts {
    grid-template-columns: 1fr;
  }

  .tool-facts div + div {
    border-top: 1px solid var(--ink);
    border-left: 0;
  }

  .process-pass h2 {
    margin-bottom: 2.5rem;
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .step-path li {
    min-height: 15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}