:root {
  --bg: #feffeb;
  --ink: #1a1a1a;
  --accent: #b9baac;
  --accent-strong: #a5a697;
  --line: #d7d7c7;
  --muted: #57574f;
  --panel: rgba(254, 255, 235, 0.84);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(185, 186, 172, 0.28), transparent 22%),
    radial-gradient(circle at bottom right, rgba(185, 186, 172, 0.2), transparent 26%),
    linear-gradient(180deg, #feffeb 0%, #f8f8e2 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: transparent;
  font-family: Manrope, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  width: min(1240px, calc(100% - 32px));
  margin: 20px auto;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 60px rgba(26, 26, 26, 0.1);
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--bg);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.brand-copy small {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(26, 26, 26, 0.52);
}

.brand-copy strong {
  display: block;
  font-size: 24px;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.nav-links a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--muted);
  background: rgba(254, 255, 235, 0.88);
}

.nav-links a.primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}

.hero {
  padding: 30px 28px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(26, 26, 26, 0.62);
  background: rgba(185, 186, 172, 0.16);
}

h1 {
  margin: 18px 0 12px;
  font-size: clamp(38px, 5vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.06em;
  max-width: 900px;
}

.lede {
  max-width: 720px;
  margin: 0;
  font-size: 18px;
  line-height: 1.75;
  color: var(--muted);
}

.support-grid {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: 24px;
  padding: 26px 28px 34px;
}

.sidebar-card,
.article-card,
.tile,
.hero-card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(254, 255, 235, 0.92);
}

.sidebar-card {
  padding: 18px;
  position: sticky;
  top: 22px;
  align-self: start;
}

.sidebar-card h2,
.article-card h2 {
  margin: 0 0 10px;
  font-size: 20px;
  letter-spacing: -0.04em;
}

.sidebar-group {
  margin-top: 18px;
}

.sidebar-group strong {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(26, 26, 26, 0.48);
}

.sidebar-links {
  display: grid;
  gap: 8px;
}

.sidebar-links a {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  background: rgba(254, 255, 235, 0.94);
}

.sidebar-links a.active,
.sidebar-links a:hover {
  color: var(--ink);
  background: rgba(185, 186, 172, 0.2);
}

.content {
  display: grid;
  gap: 20px;
}

.hero-card {
  padding: 24px;
  display: grid;
  gap: 18px;
}

.hero-card h2 {
  margin: 0;
  font-size: 30px;
  letter-spacing: -0.05em;
}

.hero-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.cta-row,
.chip-row,
.tile-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 18px;
  border: 1px solid var(--line);
  font-weight: 700;
}

.button.primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}

.button.secondary {
  background: rgba(185, 186, 172, 0.18);
}

.chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  color: rgba(26, 26, 26, 0.68);
  background: rgba(185, 186, 172, 0.16);
}

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

.tile {
  padding: 18px;
}

.tile strong {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.tile p {
  margin: 0;
  line-height: 1.7;
  color: var(--muted);
}

.article-card {
  padding: 26px;
}

.breadcrumbs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  font-size: 13px;
  color: rgba(26, 26, 26, 0.5);
}

.article-card h1 {
  margin: 0 0 10px;
  font-size: clamp(34px, 4.2vw, 56px);
}

.article-card p,
.article-card li {
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.article-card ul,
.article-card ol {
  margin: 0;
  padding-left: 22px;
}

.section {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.section h3 {
  margin: 0 0 14px;
  font-size: 26px;
  letter-spacing: -0.04em;
  color: var(--ink);
}

.callout {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px;
  background: rgba(185, 186, 172, 0.16);
}

.callout strong {
  display: block;
  margin-bottom: 8px;
  font-size: 15px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.step-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(254, 255, 235, 0.94);
  padding: 18px;
}

.step-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  margin-bottom: 14px;
  background: var(--ink);
  color: var(--bg);
  font-size: 14px;
  font-weight: 700;
}

.step-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.step-card p {
  margin: 0;
}

.footer {
  padding: 0 28px 28px;
  font-size: 13px;
  color: rgba(26, 26, 26, 0.56);
}

@media (max-width: 980px) {
  .support-grid {
    grid-template-columns: 1fr;
  }

  .sidebar-card {
    position: static;
  }

  .tile-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 20px, 100%);
    margin: 10px auto;
    border-radius: 24px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar,
  .hero,
  .support-grid,
  .footer {
    padding-left: 18px;
    padding-right: 18px;
  }
}