:root {
  --ink: #1a1410;
  --muted: #5c534c;
  --peach: #f4a27e;
  --peach-deep: #e07850;
  --line: rgba(26, 20, 16, 0.12);
  --card: rgba(255, 255, 255, 0.78);
  --rail: rgba(255, 248, 243, 0.92);
  --ok: #2f9e6e;
  --bad: #b42318;
  --bg1: #fff8f3;
  --bg2: #f7ebe3;
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  min-height: 100%;
}
body {
  font-family: "DM Sans", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(ellipse 90% 60% at 8% -8%, rgba(244, 162, 126, 0.42), transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 0%, rgba(224, 120, 80, 0.18), transparent 50%),
    linear-gradient(165deg, var(--bg1) 0%, var(--bg2) 55%, #efe0d4 100%);
}
a {
  color: var(--peach-deep);
}
.shell {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}
.rail {
  background: var(--rail);
  border-right: 1px solid var(--line);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}
.brand .mark {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.85rem;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--peach), var(--peach-deep));
  color: #fff;
  font-weight: 700;
}
.brand strong {
  display: block;
  font-size: 0.95rem;
}
.brand small {
  color: var(--muted);
}
.rail nav {
  display: grid;
  gap: 0.35rem;
}
.rail nav a {
  text-decoration: none;
  color: var(--ink);
  padding: 0.65rem 0.75rem;
  border-radius: 0.65rem;
  font-weight: 500;
  font-size: 0.92rem;
}
.rail nav a:hover,
.rail nav a.active {
  background: rgba(224, 120, 80, 0.12);
}
.rail-foot {
  margin-top: auto;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.4;
}
main {
  padding: 1.75rem 1.5rem 3rem;
  max-width: 1100px;
}
.top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.eyebrow {
  margin: 0 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--peach-deep);
}
h1 {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: 1.1;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.15rem;
  margin: 0 0 0.75rem;
}
.lede,
.hint {
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}
.hint {
  margin-top: 0.75rem;
  font-size: 0.9rem;
}
.top-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.75rem 1.15rem;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  background: transparent;
  color: var(--ink);
}
.btn.primary {
  background: linear-gradient(135deg, var(--peach), var(--peach-deep));
  color: #fff;
  box-shadow: 0 10px 24px rgba(224, 120, 80, 0.25);
}
.btn.ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.5);
}
.grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}
.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.15rem 1.25rem 1.3rem;
  backdrop-filter: blur(8px);
}
.kpi span {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}
.kpi strong {
  font-size: 1.15rem;
  font-weight: 650;
}
.kpi strong.small {
  font-size: 0.82rem;
  word-break: break-all;
}
.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.copy-box {
  background: rgba(26, 20, 16, 0.05);
  border-radius: 0.75rem;
  padding: 0.9rem 1rem;
  overflow: auto;
  font-size: 0.86rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}
.copy-box.small {
  font-size: 0.78rem;
  max-height: 180px;
}
.methods {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}
.methods li {
  padding: 0.55rem 0.7rem;
  border-radius: 0.55rem;
  background: rgba(47, 158, 110, 0.1);
  color: #1f6b4a;
  font-weight: 500;
}
.methods li.off {
  background: rgba(180, 35, 24, 0.08);
  color: var(--bad);
}
.kv {
  display: grid;
  gap: 0.55rem;
  margin: 0;
}
.kv div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.5rem;
  font-size: 0.9rem;
}
.kv dt {
  color: var(--muted);
  margin: 0;
}
.kv dd {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  word-break: break-all;
}
.link-stack {
  display: grid;
  gap: 0.55rem;
}
.link-stack a {
  text-decoration: none;
  font-weight: 600;
}
.checklist {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--muted);
  line-height: 1.55;
}
.checklist li {
  margin-bottom: 0.45rem;
}
.form {
  display: grid;
  gap: 0.75rem;
}
.form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
}
.form input,
.form select {
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  padding: 0.7rem 0.8rem;
  font: inherit;
  background: #fff;
}
.checkout-frame {
  min-height: 640px;
  height: 70vh;
  border: 1px dashed var(--line);
  border-radius: 0.85rem;
  background: #fff;
  overflow: auto;
}
.status-ok {
  color: var(--ok);
}
.status-bad {
  color: var(--bad);
}
@media (max-width: 960px) {
  .shell {
    grid-template-columns: 1fr;
  }
  .rail {
    position: relative;
    height: auto;
  }
  .grid.two,
  .grid.four {
    grid-template-columns: 1fr;
  }
}