:root {
  color-scheme: light dark;
  --background: #f7f5ef;
  --panel: #fffdf8;
  --elevated-row: #ffffff;
  --surface: #e7e3da;
  --surface-high: #f0ece3;
  --text: #18201f;
  --muted-text: #66716d;
  --outline: #c8c4ba;
  --feed: #006b5f;
  --feed-soft: #ddf4f0;
  --sleep: #4f5d95;
  --sleep-soft: #e8ebfa;
  --diaper: #f2a900;
  --success: #2e7d5b;
  --danger: #d62828;
  --shadow: 0 20px 48px rgba(24, 32, 31, 0.10);
  --soft-shadow: 0 10px 28px rgba(24, 32, 31, 0.08);
  --glass-fill: rgba(255, 253, 248, 0.68);
  --glass-row: rgba(255, 255, 255, 0.62);
  --glass-stroke: rgba(200, 196, 186, 0.42);
  --artwork: url("/assets/app-background-light-seamless.png");
  --page-gutter: 24px;
  --max-width: 1120px;
  --radius-row: 24px;
  --radius-panel: 28px;
  --radius-button: 999px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #101615;
    --panel: #1b2321;
    --elevated-row: #222b28;
    --surface: #2b3330;
    --surface-high: #35413d;
    --text: #f4f7f4;
    --muted-text: #a8b3ae;
    --outline: #3f4a46;
    --feed: #8fd1d3;
    --feed-soft: #0b2b2a;
    --sleep: #a8b4ff;
    --sleep-soft: #17224a;
    --diaper: #f5c85c;
    --success: #74cfa5;
    --danger: #eb6a6a;
    --shadow: 0 22px 52px rgba(0, 0, 0, 0.34);
    --soft-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
    --glass-fill: rgba(27, 35, 33, 0.72);
    --glass-row: rgba(34, 43, 40, 0.66);
    --glass-stroke: rgba(63, 74, 70, 0.54);
    --artwork: url("/assets/app-background-night-seamless.png");
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--background);
  color: var(--text);
  font-family: ui-rounded, "SF Pro Rounded", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -3;
  content: "";
  background:
    linear-gradient(180deg, rgba(247, 245, 239, 0.72), rgba(247, 245, 239, 0.94)),
    var(--artwork) center top / 430px auto repeat;
}

@media (prefers-color-scheme: dark) {
  body::before {
    background:
      linear-gradient(180deg, rgba(16, 22, 21, 0.74), rgba(16, 22, 21, 0.94)),
      var(--artwork) center top / 430px auto repeat;
  }
}

a {
  color: var(--feed);
}

img,
svg {
  max-width: 100%;
}

.site-backdrop {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.backdrop-layer {
  position: absolute;
  inset: -12vh -8vw;
  background-image: var(--artwork);
  background-repeat: repeat;
  background-size: 430px auto;
  opacity: 0.18;
  will-change: transform;
}

.backdrop-layer-soft {
  filter: blur(1px);
}

.backdrop-layer-drift {
  opacity: 0.11;
  background-position: 52% 28%;
  transform: scale(1.08);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 14px var(--page-gutter);
  background: color-mix(in srgb, var(--background) 78%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--outline) 52%, transparent);
  backdrop-filter: blur(22px) saturate(1.18);
}

.nav,
.site-footer {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--glass-stroke);
  border-radius: 12px;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--feed) 16%, transparent), transparent),
    var(--glass-row);
  box-shadow: var(--soft-shadow);
  color: var(--feed);
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a,
.site-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: var(--radius-button);
  color: var(--muted-text);
  font-size: 0.96rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"],
.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--feed);
  background: color-mix(in srgb, var(--feed-soft) 72%, transparent);
}

.hero-section,
.value-section,
.privacy-section {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 84px var(--page-gutter);
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  align-items: center;
  gap: 58px;
  padding-top: 44px;
  padding-bottom: 52px;
}

.hero-copy h1,
.section-heading h2,
.night-content h2,
.legal h1 {
  margin: 0;
  max-width: 760px;
  font-family: ui-serif, "New York", Georgia, serif;
  font-size: 4.05rem;
  line-height: 1.03;
  letter-spacing: 0;
}

.lead,
.section-heading p,
.night-content p {
  max-width: 690px;
  margin: 24px 0 0;
  color: var(--muted-text);
  font-size: 1.25rem;
  line-height: 1.55;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--feed);
  font-size: 0.84rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-button);
  font-weight: 800;
  text-decoration: none;
}

.button-primary {
  background: var(--feed);
  color: var(--background);
  box-shadow: var(--soft-shadow);
}

.button-secondary {
  background: var(--glass-fill);
  border-color: var(--glass-stroke);
  color: var(--feed);
  backdrop-filter: blur(18px) saturate(1.16);
}

.hero-preview {
  justify-self: end;
  will-change: transform;
}

.phone-shell {
  width: min(100%, 372px);
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--outline) 62%, transparent);
  border-radius: 42px;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--panel) 78%, transparent), color-mix(in srgb, var(--surface-high) 54%, transparent)),
    var(--artwork) center / cover;
  box-shadow: var(--shadow);
}

.phone-screen {
  overflow: hidden;
  border: 1px solid var(--glass-stroke);
  border-radius: 32px;
  background: var(--background);
}

.app-screenshot {
  display: block;
  width: 100%;
  height: auto;
}

.night-row,
.value-row,
.link-card {
  display: flex;
  align-items: center;
}

.value-row,
.link-card {
  border: 1px solid var(--glass-stroke);
  background: var(--glass-fill);
  box-shadow: var(--soft-shadow);
  backdrop-filter: blur(20px) saturate(1.18);
}

.value-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.section-heading h2,
.night-content h2,
.legal h1 {
  font-size: 3.2rem;
}

.value-list {
  display: grid;
  gap: 12px;
}

.value-row {
  gap: 18px;
  align-items: flex-start;
  min-height: 112px;
  padding: 20px;
  border-radius: var(--radius-row);
}

.value-number {
  min-width: 44px;
  color: var(--feed);
  font-weight: 900;
}

.value-row h3,
.link-card span,
.night-row strong {
  margin: 0;
  color: var(--text);
  font-size: 1.05rem;
}

.value-row p {
  margin: 6px 0 0;
  color: var(--muted-text);
}

.night-section {
  position: relative;
  width: min(calc(100% - 2 * var(--page-gutter)), 1180px);
  min-height: 540px;
  display: grid;
  grid-template-columns: 1fr minmax(0, 0.9fr);
  align-items: center;
  gap: 40px;
  margin: 24px auto;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, #3f4a46 72%, transparent);
  border-radius: 34px;
  background:
    linear-gradient(90deg, rgba(16, 22, 21, 0.96), rgba(16, 22, 21, 0.74)),
    url("/assets/app-background-night-seamless.png") center / 430px auto repeat;
  box-shadow: var(--shadow);
  color: #f4f7f4;
}

.night-art {
  min-height: 540px;
  background: url("/assets/app-background-night-seamless.png") center / cover;
  opacity: 0.82;
  will-change: transform;
}

.night-content {
  position: relative;
  z-index: 1;
  padding: 56px;
}

.night-content h2,
.night-content p,
.night-row strong {
  color: #f4f7f4;
}

.night-content p,
.night-row span {
  color: #a8b3ae;
}

.night-rows {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.night-row {
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid rgba(168, 179, 174, 0.16);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.055);
  backdrop-filter: blur(16px);
}

.night-row strong {
  flex: 0 0 160px;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.link-card {
  min-height: 166px;
  align-items: flex-start;
  justify-content: space-between;
  flex-direction: column;
  padding: 22px;
  border-radius: var(--radius-row);
  color: var(--text);
  text-decoration: none;
}

.link-card span {
  color: var(--feed);
  font-weight: 900;
}

.link-card strong {
  color: var(--text);
  font-size: 1.25rem;
  line-height: 1.35;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px var(--page-gutter) 46px;
  color: var(--muted-text);
}

.site-footer div,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.site-footer strong {
  color: var(--text);
}

.content {
  width: min(100%, 900px);
  margin: 0 auto;
  padding: 64px var(--page-gutter) 86px;
}

.legal {
  color: var(--text);
}

.legal h1 {
  margin-bottom: 24px;
}

.legal h2 {
  margin: 42px 0 12px;
  font-size: 1.7rem;
  line-height: 1.2;
}

.legal h3 {
  margin: 28px 0 8px;
  font-size: 1.15rem;
}

.legal p,
.legal li {
  color: var(--muted-text);
  font-size: 1rem;
}

.legal strong {
  color: var(--text);
}

.legal ul {
  padding-left: 1.3rem;
}

.legal li + li {
  margin-top: 0.45rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.card,
.callout {
  padding: 20px;
  border: 1px solid var(--glass-stroke);
  border-radius: var(--radius-row);
  background: var(--glass-fill);
  box-shadow: var(--soft-shadow);
  backdrop-filter: blur(20px) saturate(1.18);
}

.card h3 {
  margin-top: 0;
}

.callout {
  margin: 28px 0;
}

@media (max-width: 980px) {
  .hero-section,
  .value-section,
  .night-section {
    grid-template-columns: 1fr;
  }

  .hero-section {
    min-height: auto;
    gap: 42px;
  }

  .hero-preview {
    justify-self: center;
    width: 100%;
  }

  .phone-shell {
    margin: 0 auto;
  }

  .night-section {
    width: min(calc(100% - 32px), 760px);
  }

  .night-art {
    min-height: 220px;
  }

  .night-content {
    padding: 34px;
  }
}

@media (max-width: 760px) {
  :root {
    --page-gutter: 18px;
  }

  .site-header {
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .hero-section,
  .value-section,
  .privacy-section {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .hero-copy h1 {
    font-size: 2.45rem;
  }

  .section-heading h2,
  .night-content h2,
  .legal h1 {
    font-size: 2.35rem;
  }

  .lead,
  .section-heading p,
  .night-content p {
    font-size: 1.08rem;
  }

  .phone-screen {
    border-radius: 28px;
  }

  .privacy-grid,
  .cards {
    grid-template-columns: 1fr;
  }

  .night-row {
    display: block;
  }

  .night-row span {
    display: block;
    margin-top: 6px;
  }

  .site-footer {
    display: block;
  }

  .site-footer nav {
    margin-top: 14px;
  }
}

@media (max-width: 460px) {
  .nav {
    align-items: flex-start;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .nav-links {
    gap: 2px;
  }

  .nav-links a {
    padding: 0 8px;
  }

  .hero-copy h1 {
    font-size: 2.28rem;
  }

  .phone-shell {
    padding: 8px;
    border-radius: 34px;
  }

  .phone-screen {
    border-radius: 26px;
  }
}

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

  .backdrop-layer,
  .hero-preview,
  .night-art {
    transform: none !important;
  }
}