:root {
  --ink: #1f292d;
  --muted: #536267;
  --paper: #f7f4ee;
  --panel: #fffdf8;
  --line: #d7d0c3;
  --charcoal: #263238;
  --rust: #a35d3d;
  --blue: #336778;
  --gold: #c1913f;
  --shadow: 0 18px 45px rgba(31, 41, 45, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(38, 50, 56, 0.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(38, 50, 56, 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
  font-family: "Aptos", "Segoe UI", sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

.rn-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(38, 50, 56, 0.14);
  background: rgba(247, 244, 238, 0.94);
  backdrop-filter: blur(10px);
}

.rn-brand,
nav,
.hero-actions,
.form-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.rn-brand,
nav a {
  color: var(--ink);
  text-decoration: none;
}

.rn-brand span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--blue);
  color: white;
  font-weight: 800;
}

nav a {
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a:hover {
  background: rgba(51, 103, 120, 0.1);
  color: var(--ink);
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.rn-hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: 52px 0 26px;
}

.eyebrow,
.sheet-label {
  margin: 0 0 10px;
  color: var(--rust);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
legend {
  margin: 0;
  color: var(--charcoal);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.05;
}

h1 {
  max-width: 820px;
  font-size: clamp(2.4rem, 5vw, 5.25rem);
}

.lede {
  max-width: 780px;
  margin: 20px 0 26px;
  color: #3d4a4e;
  font-size: 1.13rem;
  line-height: 1.7;
}

.rn-button,
button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  background: #fffaf0;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

.rn-button.primary,
button.primary {
  border-color: var(--charcoal);
  background: var(--charcoal);
  color: white;
}

.rn-button:hover,
button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(31, 41, 45, 0.12);
}

.release-ledger,
.rn-panel,
.release-sheet,
.demand-note {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.96);
  box-shadow: var(--shadow);
}

.release-ledger {
  padding: 22px;
  border-top: 8px solid var(--blue);
}

.release-ledger dl {
  display: grid;
  gap: 12px;
  margin: 0;
}

.release-ledger div,
.summary-strip div {
  padding-left: 12px;
  border-left: 4px solid var(--blue);
}

dt,
.summary-strip span {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

dd,
.summary-strip strong {
  margin: 3px 0 0;
  font-weight: 800;
}

.demand-note {
  margin: 0 0 24px;
  padding: 18px 20px;
  border-left: 8px solid var(--rust);
}

.demand-note p,
.fine-print,
.instrumentation p,
.status-message {
  color: var(--muted);
  line-height: 1.6;
}

.rn-workflow {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: 22px;
  align-items: start;
  padding: 10px 0 56px;
}

.faq-band {
  padding: 0 0 56px;
}

.faq-band h2 {
  margin-bottom: 14px;
}

.faq-band h3 {
  margin-top: 18px;
}

.rn-panel,
.release-sheet {
  padding: clamp(18px, 3vw, 28px);
}

fieldset {
  display: grid;
  gap: 14px;
  margin: 0 0 20px;
  padding: 0 0 20px;
  border: 0;
  border-bottom: 1px solid var(--line);
}

legend {
  margin-bottom: 14px;
  font-size: 1.35rem;
}

.field-grid,
.two-column,
.toggle-grid {
  display: grid;
  gap: 12px;
}

.field-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.toggle-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 7px;
  color: #334145;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 11px;
  background: #fffdfa;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.toggle-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
}

.toggle-grid input {
  width: auto;
}

.instrumentation {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(51, 103, 120, 0.07);
}

.instrumentation h2 {
  font-size: 1.2rem;
}

code {
  font-size: 0.9em;
}

.release-sheet {
  position: sticky;
  top: 82px;
}

.release-document {
  display: grid;
  gap: 16px;
}

.document-header,
.summary-strip {
  display: grid;
  gap: 14px;
}

.document-header {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  padding-bottom: 16px;
  border-bottom: 3px solid var(--charcoal);
}

.document-header h2 {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
}

.document-header p {
  color: var(--muted);
}

.document-header > strong {
  padding: 9px 11px;
  border-radius: 8px;
  background: rgba(193, 145, 63, 0.2);
  color: #6f4d0f;
}

.summary-strip {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
}

.report-block {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.report-block h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.report-block p,
.report-block li {
  color: #3f4d50;
  line-height: 1.6;
}

.report-block ul {
  margin: 0;
  padding-left: 20px;
}

.boundary-block {
  border-left: 6px solid var(--rust);
}

@media (max-width: 960px) {
  .rn-hero,
  .rn-workflow,
  .field-grid,
  .two-column,
  .toggle-grid {
    grid-template-columns: 1fr;
  }

  .rn-hero {
    min-height: auto;
    padding-top: 34px;
  }

  .release-sheet {
    position: static;
  }
}

@media (max-width: 640px) {
  .rn-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .summary-strip,
  .document-header {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.35rem;
  }
}

@media print {
  .rn-topbar,
  .rn-panel,
  .demand-note,
  .hero-actions,
  .release-ledger {
    display: none;
  }

  body {
    background: white;
  }

  main,
  .rn-workflow {
    width: 100%;
    display: block;
  }

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