:root {
  color-scheme: light;
  --ink: #16201d;
  --muted: #5b6762;
  --line: #d7dfdc;
  --paper: #f7f8f5;
  --panel: #ffffff;
  --accent: #12715f;
  --accent-strong: #0b4e43;
  --warn: #9b5b18;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

body {
  color: var(--ink);
  background:
    linear-gradient(115deg, rgba(18, 113, 95, 0.10), transparent 34%),
    linear-gradient(180deg, #fbfcf9 0%, var(--paper) 100%);
  font: 15px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; }

.shell {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(250px, 320px) minmax(0, 1fr);
}

aside {
  padding: 32px 28px;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

main {
  min-width: 0;
  padding: 34px clamp(20px, 4vw, 52px) 52px;
}

.mark {
  display: block;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .16em;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 22px 0 14px;
  font-size: clamp(40px, 6vw, 74px);
  line-height: .96;
  letter-spacing: 0;
}

.lede {
  max-width: 740px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.45;
}

.status {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.status strong { color: var(--ink); }

nav {
  display: grid;
  gap: 8px;
  margin-top: 28px;
}

nav a {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

nav a:hover { color: var(--accent-strong); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--accent-strong);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 32px;
  border: 1px solid var(--line);
  background: var(--line);
}

.metric {
  min-width: 0;
  padding: 18px;
  background: rgba(255, 255, 255, .82);
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.metric strong {
  display: block;
  margin-top: 4px;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-head {
  margin: 36px 0 12px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.artifact-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.artifact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.artifact:hover .artifact-title { color: var(--accent-strong); }

.artifact-title {
  display: block;
  font-size: 20px;
  font-weight: 760;
  line-height: 1.2;
}

.artifact-desc {
  display: block;
  max-width: 720px;
  margin-top: 4px;
  color: var(--muted);
}

.arrow {
  color: var(--accent-strong);
  font-size: 24px;
}

.warning {
  max-width: 900px;
  margin-top: 36px;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  color: var(--warn);
}

@media (max-width: 820px) {
  .shell {
    display: flex;
    flex-direction: column;
  }
  main { order: 1; }
  aside { order: 2; }
  aside { border-right: 0; border-bottom: 1px solid var(--line); }
  main { padding-top: 26px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .artifact { grid-template-columns: minmax(0, 1fr); }
  .arrow { display: none; }
}

@media (max-width: 460px) {
  aside { padding: 24px 20px; }
  .metrics { grid-template-columns: 1fr; }
  .hero-actions { display: grid; }
  .button { justify-content: center; }
}