:root {
  color-scheme: dark;
  --ink: #eef4ff;
  --muted: #9aaac1;
  --line: rgba(153, 184, 224, 0.18);
  --panel: rgba(13, 27, 46, 0.72);
  --accent: #78e0c2;
  --accent-ink: #041914;
  --blue: #82aaff;
  --page: #08111f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 8%, rgba(56, 115, 161, 0.22), transparent 28rem),
    radial-gradient(circle at 86% 28%, rgba(63, 173, 145, 0.12), transparent 24rem),
    var(--page);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header,
main,
footer {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 720;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--accent-ink);
  background: var(--accent);
  border-radius: 10px 10px 10px 3px;
  font-family: Georgia, serif;
  font-size: 20px;
}

.header-link {
  color: var(--muted);
  text-decoration: none;
}

.header-link:hover,
.header-link:focus-visible {
  color: var(--ink);
}

.hero {
  max-width: 900px;
  padding: 110px 0 92px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 26px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.6rem, 9vw, 7.7rem);
  font-weight: 500;
  letter-spacing: -0.066em;
  line-height: 0.88;
}

.hero-copy {
  max-width: 690px;
  margin-bottom: 34px;
  color: #bac8da;
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 720;
  text-decoration: none;
}

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

.button-primary:hover,
.button-primary:focus-visible {
  background: #9bead4;
}

.release-note,
.pricing-heading > p,
.status > p,
footer {
  color: var(--muted);
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principles article {
  min-height: 270px;
  padding: 36px 34px 34px 0;
}

.principles article + article {
  padding-left: 34px;
  border-left: 1px solid var(--line);
}

.step {
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
}

.principles h2 {
  margin: 44px 0 12px;
  font-size: 1.22rem;
}

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

.pricing-section {
  padding: 112px 0;
}

.pricing-heading {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 50px;
  align-items: end;
  margin-bottom: 38px;
}

.pricing-heading .eyebrow {
  grid-column: 1 / -1;
}

.pricing-heading h2,
.status h2 {
  margin-bottom: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.1rem, 5vw, 4.2rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

.pricing-heading > p:last-child {
  margin-bottom: 3px;
}

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

.price-card {
  position: relative;
  display: flex;
  min-height: 420px;
  flex-direction: column;
  padding: 34px;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(14px);
}

.price-card-featured {
  border-color: rgba(120, 224, 194, 0.45);
}

.plan-badge {
  position: absolute;
  top: 0;
  right: 0;
  padding: 8px 14px;
  color: var(--accent-ink);
  background: var(--accent);
  border-radius: 0 0 0 10px;
  font-size: 0.76rem;
  font-weight: 780;
}

.plan-name {
  color: #cad7e8;
  font-weight: 700;
}

.price {
  margin: 18px 0 0;
  color: var(--muted);
}

.price span {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 7vw, 5.2rem);
  letter-spacing: -0.055em;
}

.price-detail {
  min-height: 25px;
  color: var(--accent);
  font-size: 0.9rem;
}

.price-card ul {
  padding: 0;
  margin: 26px 0 34px;
  color: #bcc9da;
  list-style: none;
}

.price-card li {
  padding: 7px 0;
}

.price-card li::before {
  content: "✓";
  margin-right: 10px;
  color: var(--accent);
}

.button-muted {
  margin-top: auto;
  color: #9cacc1;
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
  cursor: not-allowed;
}

.status {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 54px;
  align-items: end;
  padding: 86px 0;
  border-top: 1px solid var(--line);
}

.status .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -30px;
}

.status > p:last-child {
  margin-bottom: 2px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 0 42px;
  border-top: 1px solid var(--line);
  font-size: 0.84rem;
}

@media (max-width: 760px) {
  .hero {
    padding: 78px 0 68px;
  }

  .principles,
  .pricing-grid,
  .pricing-heading,
  .status {
    grid-template-columns: 1fr;
  }

  .principles article {
    min-height: 0;
    padding: 30px 0;
  }

  .principles article + article {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .principles h2 {
    margin-top: 18px;
  }

  .pricing-section {
    padding: 82px 0;
  }

  .pricing-heading {
    gap: 20px;
  }

  .status {
    gap: 28px;
  }

  .status .eyebrow {
    margin-bottom: -10px;
  }

  footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}