:root {
  --bg: #071b1d;
  --bg-soft: #0c2d31;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --card: #f5fbfb;
  --ink: #0f172a;
  --ink-soft: #475569;
  --line: rgba(255, 255, 255, 0.12);
  --brand: #147d73;
  --brand-2: #2bbfb0;
  --accent: #f5c95f;
  --white: #f8fafc;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
  --gutter: clamp(20px, 4vw, 48px);
  --radius-xl: 36px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --font-display: "Avenir Next", "Trebuchet MS", sans-serif;
  --font-body: "Avenir Next", "Gill Sans", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--white);
  background:
    radial-gradient(circle at top right, rgba(43, 191, 176, 0.22), transparent 30%),
    linear-gradient(180deg, #0b2225 0%, #071618 100%);
}

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

.page-shell {
  min-height: 100vh;
}

.hero {
  padding: 28px var(--gutter) 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  color: var(--white);
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
}

.eyebrow,
.section-kicker,
.tag,
.meta-label {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 700;
}

.eyebrow,
.section-kicker,
.meta-label {
  color: rgba(248, 250, 252, 0.68);
}

.brand-name {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
}

.chip-link {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.06);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 40px;
  align-items: center;
}

.tag {
  color: var(--accent);
  margin-bottom: 18px;
}

.hero-copy h2 {
  margin: 0;
  max-width: 12ch;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(44px, 7vw, 82px);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.hero-copy h2 span {
  display: block;
  color: rgba(248, 250, 252, 0.72);
}

.lead {
  max-width: 620px;
  margin: 22px 0 0;
  color: rgba(248, 250, 252, 0.82);
  font-size: 19px;
  line-height: 1.7;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 34px 0;
}

.primary-cta,
.secondary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 800;
}

.primary-cta {
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  box-shadow: var(--shadow);
}

.secondary-cta {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 720px;
}

.meta-card {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
}

.meta-card strong {
  display: block;
  margin-top: 10px;
  font-size: 16px;
}

.hero-panel {
  position: relative;
}

.panel-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  box-shadow: var(--shadow);
}

.panel-frame::after {
  content: "";
  position: absolute;
  inset: auto -40px -80px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(245, 201, 95, 0.14);
  filter: blur(6px);
}

.panel-header {
  display: flex;
  gap: 10px;
  padding: 18px 22px 0;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.28);
}

.panel-body {
  padding: 22px;
}

.metric-card {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  margin-bottom: 14px;
}

.metric-card.accent {
  background: linear-gradient(135deg, rgba(43, 191, 176, 0.16), rgba(245, 201, 95, 0.12));
}

.metric-label {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(248, 250, 252, 0.68);
}

.metric-card strong {
  display: block;
  max-width: 22ch;
  font-size: 20px;
  line-height: 1.3;
}

.metric-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.metric-list div {
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.metric-list span {
  font-size: 16px;
  font-weight: 800;
}

.metric-list p {
  margin: 8px 0 0;
  color: rgba(248, 250, 252, 0.74);
  line-height: 1.55;
}

main {
  padding: 0 var(--gutter) 72px;
}

.feature-strip,
.install-section,
.notes-section {
  margin-top: 28px;
}

.feature-strip {
  display: grid;
  gap: 22px;
}

.feature-strip h3,
.install-copy h3,
.checksum-card h4,
.note-card h4 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  line-height: 1.15;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.checksum-card,
.note-card {
  border-radius: var(--radius-lg);
  background: var(--card);
  color: var(--ink);
  padding: 24px;
}

.feature-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--brand);
  font-size: 28px;
  font-weight: 800;
}

.feature-card h4 {
  margin: 0 0 10px;
  font-size: 20px;
}

.feature-card p,
.checksum-card p,
.note-card p,
.install-copy ol {
  color: var(--ink-soft);
  line-height: 1.7;
}

.install-section {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 18px;
}

.install-copy {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  padding: 28px;
}

.install-copy h3 {
  color: var(--white);
}

.install-copy ol {
  margin: 18px 0 0;
  padding-left: 20px;
  color: rgba(248, 250, 252, 0.82);
}

.install-copy li + li {
  margin-top: 10px;
}

.checksum-card code {
  display: block;
  margin: 18px 0;
  padding: 16px;
  border-radius: var(--radius-md);
  background: #e6f7f4;
  color: var(--brand);
  font-size: 13px;
  line-height: 1.6;
  word-break: break-all;
}

.notes-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

@media (max-width: 960px) {
  .hero-grid,
  .install-section,
  .feature-grid,
  .notes-section,
  .meta-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy h2 {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 20px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 32px;
  }

  .hero-copy h2 {
    font-size: 42px;
  }

  .lead {
    font-size: 17px;
  }

  .feature-card,
  .install-copy,
  .checksum-card,
  .note-card {
    padding: 20px;
  }
}