:root {
  --bg: #fbfbfa;
  --surface: #ffffff;
  --text: #111111;
  --muted: #4b4b4b;
  --hairline: rgba(0, 0, 0, 0.12);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);

  --radius: 16px;
  --radius-sm: 12px;

  --container: 1100px;

  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 72px;

  --font-sans:
    ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  --font-serif: ui-serif, Georgia, "Times New Roman", Times, serif;

  --h1: clamp(2.1rem, 2.2vw + 1.3rem, 3.2rem);
  --h2: clamp(1.4rem, 0.8vw + 1.1rem, 1.8rem);
  --h3: 1.1rem;
  --body: 1rem;
  --lede: 1.12rem;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--body);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.25);
}
a:hover {
  border-bottom-color: rgba(0, 0, 0, 0.65);
}

.container {
  width: min(var(--container), calc(100% - 2 * var(--space-4)));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
  width: auto;
  height: auto;
  padding: var(--space-2) var(--space-3);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  z-index: 9999;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 251, 250, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-bottom: none;
}
.brand-mark {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.9);
  box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.08);
}
.brand-text {
  font-weight: 650;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.nav a {
  border-bottom: none;
  padding: 8px 10px;
  border-radius: 10px;
}
.nav a:hover {
  background: rgba(0, 0, 0, 0.04);
}
.nav-cta {
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
}

.hero {
  padding: var(--space-7) 0 4rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1.15fr) minmax(360px, 1fr);
  gap: var(--space-6);
  align-items: start;
}
.hero-copy {
  max-width: 820px;
}
.eyebrow {
  display: inline-block;
  margin: 0 0 var(--space-2);
  padding: 6px 10px;
  font-size: 0.88rem;
  letter-spacing: 0.2px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
}

h1 {
  margin: 0 0 var(--space-3);
  font-size: var(--h1);
  line-height: 1.05;
  font-family: var(--font-serif);
  letter-spacing: -0.3px;
}
h2 {
  margin: 0 0 var(--space-3);
  font-size: var(--h2);
  line-height: 1.2;
  font-family: var(--font-serif);
  letter-spacing: -0.2px;
}

h3 {
  margin: 0 0 10px;
  font-size: var(--h3);
  line-height: 1.2;
  letter-spacing: 0.1px;
}

.lede {
  margin: 0 0 var(--space-4);
  font-size: var(--lede);
  color: var(--muted);
  max-width: 62ch;
}

.hero .lede {
  margin: 0.75rem 0 0;
}
.hero .lede:first-of-type {
  margin-top: 1rem;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.hero .cta-row {
  margin-top: 1.5rem;
  margin-bottom: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  cursor: pointer;
  font-weight: 650;
  letter-spacing: 0.15px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.06);
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}
.btn-full {
  width: 100%;
}

.btn-primary {
  background: #111;
  color: #fff;
  border-color: rgba(0, 0, 0, 0.25);
}
.btn-primary:hover {
  filter: brightness(1.02);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
}

.hero-notes {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero-notes li {
  padding: 8px 10px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-size: 0.92rem;
  background: rgba(255, 255, 255, 0.6);
  color: rgba(0, 0, 0, 0.75);
}

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: var(--shadow);
}
.card-title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  letter-spacing: -0.2px;
}
.card-sub {
  margin: 0 0 var(--space-4);
  color: var(--muted);
}
.card-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.meta-item {
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.02);
}
.meta-label {
  display: block;
  font-size: 0.82rem;
  color: rgba(0, 0, 0, 0.6);
  margin-bottom: 4px;
}
.meta-value {
  font-weight: 650;
}

.section {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--hairline);
}
.section-soft {
  background: rgba(255, 255, 255, 0.5);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.bullets {
  margin: var(--space-3) 0 0;
  padding-left: 18px;
  color: rgba(0, 0, 0, 0.85);
}
.bullets li {
  margin: 10px 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.muted {
  color: var(--muted);
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-3);
}
.feature {
  grid-column: span 4;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}
.feature p {
  margin: 0;
  color: var(--muted);
}

.buy-head {
  margin-bottom: var(--space-4);
}
.buy-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-3);
}
.product-card {
  grid-column: span 4;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}
.product-card-emph {
  border-color: rgba(0, 0, 0, 0.22);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.1);
}
.product-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: 6px;
}
.price {
  margin: 0;
  font-weight: 750;
  letter-spacing: 0.1px;
}
.product-desc {
  margin: 0 0 var(--space-4);
  color: var(--muted);
}
.fineprint {
  margin: var(--space-3) 0 0;
  font-size: 0.92rem;
  color: rgba(0, 0, 0, 0.65);
}

.note {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.02);
}
.note p {
  margin: 0;
  color: rgba(0, 0, 0, 0.75);
}

.divider {
  height: 1px;
  background: var(--hairline);
  margin: var(--space-4) 0;
}

.signup {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-3);
  margin: 0;
}
.signup input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--hairline);
  background: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
}
.signup input:focus {
  outline: 3px solid rgba(0, 0, 0, 0.15);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.faq {
  margin-top: var(--space-3);
  display: grid;
  gap: var(--space-2);
}
details {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}
summary {
  cursor: pointer;
  font-weight: 650;
}
details p {
  margin: 10px 0 0;
  color: var(--muted);
}

.closing {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--hairline);
}
.closing-line {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: -0.2px;
}

.site-footer {
  border-top: 1px solid var(--hairline);
  padding: var(--space-4) 0;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  color: rgba(0, 0, 0, 0.65);
  font-size: 0.95rem;
}
.footer-row a {
  border-bottom-color: rgba(0, 0, 0, 0.25);
}

/* =========================================================
   SECTION RHYTHM OVERRIDES (LOCKED)
   Purpose: consistent vertical spacing between section titles,
   intro lines, and the first content block (cards/grids/forms).
   Additive + last-in-file so it wins without trials.
   ========================================================= */

.section {
  /* More “arrival” space without changing your layout system */
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

/* Headings: stronger landing */
.section h2 {
  margin: 0 0 var(--space-4);
}
.section h3 {
  margin: 0 0 var(--space-3);
}

/* Intro text under headings (your site uses .muted heavily) */
.section > p,
.section .lede,
.section .muted {
  margin-top: 0;
  margin-bottom: var(--space-5);
}

/* If a section has multiple muted paragraphs, don’t create huge gaps */
.section .muted + .muted {
  margin-top: calc(var(--space-5) * -0.5);
}

/* Give the first “block” after an intro some breathing room */
.section .feature-grid,
.section .buy-wrap,
.section .updates-wrap,
.section .faq,
.section .note,
.section form {
  margin-top: var(--space-2);
}

/* Buy section: keep UI from feeling glued to the intro */
#buy .buy-head {
  margin-bottom: var(--space-5);
}
#buy .product-card {
  margin-top: var(--space-3);
}

/* Updates section: keep button/form from crowding the copy */
#updates .cta-row,
#updates form {
  margin-top: var(--space-3);
}

/* BUY SECTION – MINIMAL (LOCKED) */
#buy .buy-reassurance {
  margin: 1.25rem 0 1.75rem;
  font-style: italic;
  color: var(--text-muted);
}

@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 760px;
  }
  .two-col {
    grid-template-columns: 1fr;
  }
  .feature {
    grid-column: span 6;
  }
  .product-card {
    grid-column: span 12;
  }
  .nav {
    gap: 6px;
  }
  .nav-cta {
    display: none;
  }
}

@media (max-width: 560px) {
  .feature {
    grid-column: span 12;
  }
  .cta-row {
    flex-direction: column;
  }

  .hero .cta-row {
    margin-top: 1.5rem;
    margin-bottom: 0;
  }
  .btn {
    width: 100%;
  }
  .footer-row {
    flex-direction: column;
  }
}
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}