:root {
  color-scheme: dark;
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  --ink: #e7ede8;
  --muted: #99a69f;
  --green: #88c6a0;
  --amber: #e9ae6b;
  --line: #2a3731;
  --card: #141b18;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(ellipse at 50% -10%, rgba(45, 92, 69, 0.22), transparent 50%),
    #0c1110;
  color: var(--ink);
  line-height: 1.55;
}

a {
  color: var(--green);
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid #e7b96d;
  outline-offset: 2px;
}

.site-header,
.site-footer,
main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid rgba(153, 177, 161, 0.12);
}

.brand {
  color: var(--ink);
  font-size: 17px;
  font-weight: 750;
  letter-spacing: -0.7px;
  text-decoration: none;
}

.brand span {
  color: var(--amber);
}

.back-link {
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.hero {
  padding: 40px 0 24px;
}

.eyebrow {
  margin: 0 0 10px;
  color: #9cb6a5;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.15em;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(32px, 7vw, 48px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

h1 em {
  color: var(--green);
}

.lead {
  max-width: 60ch;
  margin: 16px 0 0;
  color: #b8c4bc;
  font-size: 16px;
}

.totals {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 24px 0 0;
}

.totals div {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
}

.totals dt {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.totals dd {
  margin: 2px 0 0;
  color: #f3c87e;
  font: 700 24px/1.2 "Courier New", monospace;
}

.timeline {
  position: relative;
  margin: 16px 0 0;
  padding: 0 0 0 22px;
  list-style: none;
}

.timeline::before {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 6px;
  width: 2px;
  background: linear-gradient(#4c765e, #2a3731);
  content: "";
}

.step {
  position: relative;
  margin: 0 0 10px;
}

.step::before {
  position: absolute;
  top: 17px;
  left: -21px;
  width: 12px;
  height: 12px;
  border: 2px solid #88c6a0;
  border-radius: 3px;
  background: #0c1110;
  transform: rotate(45deg);
  content: "";
}

details {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}

summary {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  align-items: baseline;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  margin-left: auto;
  color: var(--muted);
  content: "+";
}

details[open] summary::after {
  content: "−";
}

.step-date {
  min-width: 52px;
  color: var(--amber);
  font-size: 12px;
  font-weight: 700;
}

.step-title {
  font-size: 15px;
  font-weight: 650;
}

.step-body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--line);
}

.step-body p {
  margin: 12px 0 0;
  color: #c6d1ca;
  font-size: 14px;
}

.prompt {
  padding: 10px 12px;
  border-left: 3px solid var(--amber);
  border-radius: 0 8px 8px 0;
  background: #101613;
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
}

.prompt span,
.label {
  display: block;
  margin-bottom: 2px;
  color: var(--muted);
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  font-size: 10px;
  font-style: normal;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

figure {
  margin: 14px 0 0;
}

figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  object-position: top;
  border: 1px solid var(--line);
  border-radius: 8px;
}

figcaption {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.commits {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.commits li {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 10px;
  justify-content: space-between;
  padding: 8px 0;
  border-top: 1px dashed var(--line);
  font-size: 13px;
}

.commits span {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

code {
  padding: 1px 5px;
  border-radius: 4px;
  background: #0b100e;
  color: #f3c87e;
  font-size: 0.92em;
}

.how {
  margin: 36px 0 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}

.how h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  font-weight: 500;
}

.how ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: #c6d1ca;
  font-size: 14px;
}

.how li + li {
  margin-top: 8px;
}

.site-footer {
  display: flex;
  gap: 18px;
  justify-content: center;
  padding: 32px 0 40px;
  font-size: 13px;
}

@media (max-width: 520px) {
  .totals {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lead {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}