:root {
  --ink-bg: #0a0f16;
  --ink-surface: #0e1520;
  --ink-raised: #121b28;
  --ink-primary: #e8edf2;
  --ink-muted: #8b98a6;
  --chart-guide: #1b2531;
  --season-now: #22c46a;
  --season-s1: #4fa3e0;
  --season-s2: #2d6ca3;
  --season-s3: #2f5679;
  --season-floor: #3b4d5e;
  --line: rgba(232, 237, 242, 0.13);
  --shadow: 0 20px 54px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--ink-primary);
  background: var(--ink-bg);
  -webkit-font-smoothing: antialiased;
}

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

img {
  max-width: 100%;
}

.site-header {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 2;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", Inter, system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: block;
}

.wordmark-ink {
  color: var(--ink-primary);
}

.wordmark-now {
  color: var(--season-now);
}

nav {
  display: flex;
  gap: 22px;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.nav-cta {
  color: var(--season-s1);
  font-weight: 700;
}

.hero {
  min-height: 620px;
  margin-top: -78px;
  padding: 148px max(16px, calc((100vw - 1120px) / 2)) 72px;
  display: flex;
  align-items: center;
  background-image:
    linear-gradient(90deg, var(--ink-bg) 0%, rgba(10, 15, 22, 0.96) 44%, rgba(10, 15, 22, 0.82) 74%, var(--ink-bg) 100%),
    url("assets/logbook.png");
  background-repeat: no-repeat;
  background-position: center, right 8% top 54px;
  background-size: auto, min(38vw, 430px) auto;
  border-bottom: 1px solid var(--chart-guide);
}

.hero-copy {
  max-width: 620px;
}

.eyebrow {
  color: var(--season-s1);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 700;
  margin: 0 0 12px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 9ch;
  font-family: "Space Grotesk", Inter, system-ui, sans-serif;
  font-size: 6rem;
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

h2 {
  max-width: 760px;
  font-family: "Space Grotesk", Inter, system-ui, sans-serif;
  font-size: 3.4rem;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

h3 {
  font-family: "Space Grotesk", Inter, system-ui, sans-serif;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.lead {
  max-width: 590px;
  font-size: 1.35rem;
  line-height: 1.45;
  color: var(--ink-muted);
  margin-bottom: 30px;
}

.hero-actions,
.thanks-actions,
.back-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.primary {
  background: var(--season-s1);
  color: #0a2c47;
}

.secondary {
  border-color: var(--line);
  background: rgba(232, 237, 242, 0.04);
  color: var(--ink-primary);
}

.note {
  margin: 16px 0 0;
  color: var(--ink-muted);
  line-height: 1.5;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 8px 20px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(232, 237, 242, 0.05);
  color: var(--ink-primary);
}

.store-badge svg {
  width: 26px;
  height: 30px;
  fill: currentColor;
  flex: 0 0 auto;
}

.store-badge-text small {
  display: block;
  font-size: 0.72rem;
  line-height: 1.1;
  color: var(--ink-muted);
}

.store-badge-text strong {
  display: block;
  font-family: "Space Grotesk", Inter, system-ui, sans-serif;
  font-size: 1.32rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.beta-link {
  align-self: center;
  color: var(--ink-muted);
  font-weight: 500;
}

.beta-link:hover {
  color: var(--season-s1);
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 84px 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.feature-grid article,
.privacy-card,
.signup-card,
.thanks-card,
.share-card {
  border-radius: 8px;
  background: var(--ink-surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.feature-grid article {
  min-height: 230px;
  padding: 22px;
}

.feature-grid p,
.privacy-card p,
.device figcaption,
.body-copy,
.beta > p {
  color: var(--ink-muted);
  line-height: 1.58;
}

.icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(79, 163, 224, 0.12);
  display: grid;
  place-items: center;
  color: var(--season-s1);
  margin-bottom: 18px;
  font-weight: 800;
}

.screens-section {
  border-top: 1px solid var(--chart-guide);
}

.screenshots {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 28px;
  padding: 18px 0;
}

.device {
  min-width: 0;
  margin: 0;
}

.device img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
  display: block;
  box-shadow: var(--shadow);
}

.device figcaption {
  margin-top: 14px;
}

.offset {
  transform: translateY(32px);
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  border-top: 1px solid var(--chart-guide);
}

.privacy-card {
  padding: 26px;
}

.privacy-card p:last-child {
  margin-bottom: 0;
}

.beta {
  text-align: center;
  border-top: 1px solid var(--chart-guide);
}

.beta h2,
.beta > p {
  margin-left: auto;
  margin-right: auto;
}

.beta > p {
  max-width: 680px;
}

.signup-card {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 24px;
  margin-top: 12px;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 46px;
  border-top: 1px solid var(--chart-guide);
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.95rem;
}

footer a {
  color: var(--season-s1);
  font-weight: 700;
}

.thanks-page {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 104px;
}

.thanks-card {
  padding: 42px;
  text-align: center;
}

.thanks-card h1 {
  margin-left: auto;
  margin-right: auto;
}

.body-copy {
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

.thanks-preview {
  margin: 40px auto;
  display: flex;
  justify-content: center;
}

.share-card {
  width: min(100%, 360px);
  aspect-ratio: 1;
  padding: 26px;
  background: linear-gradient(180deg, var(--ink-raised), var(--ink-surface));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
}

.share-header {
  display: flex;
  gap: 12px;
  align-items: center;
}

.share-header img {
  width: 48px;
  height: 48px;
  border-radius: 8px;
}

.share-mark {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
}

.share-header span {
  color: var(--ink-muted);
  display: block;
  margin-top: 3px;
}

.share-metric label {
  display: block;
  color: var(--ink-muted);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
}

.share-metric strong {
  display: block;
  font-family: "Space Grotesk", Inter, system-ui, sans-serif;
  font-size: 4rem;
  color: var(--season-now);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.share-metric span {
  color: var(--ink-muted);
}

.share-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.share-stats div {
  background: rgba(232, 237, 242, 0.05);
  border-radius: 8px;
  padding: 13px;
}

.share-stats strong {
  display: block;
  font-variant-numeric: tabular-nums;
  font-size: 1.2rem;
}

.share-stats span {
  color: var(--ink-muted);
  font-size: 0.8rem;
}

.share-insight {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 0;
}

@media (max-width: 940px) {
  nav {
    display: none;
  }

  .hero {
    min-height: 560px;
    padding-top: 132px;
    background-position: center, right -60px top 104px;
    background-size: auto, 330px auto;
  }

  h1 {
    font-size: 4.5rem;
  }

  h2 {
    font-size: 2.65rem;
  }

  .feature-grid,
  .screenshots,
  .split {
    grid-template-columns: 1fr;
  }

  .feature-grid article {
    min-height: 0;
  }

  .offset {
    transform: none;
  }

  footer {
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .hero {
    min-height: 600px;
    padding-bottom: 44px;
    background-image:
      linear-gradient(180deg, var(--ink-bg) 0%, rgba(10, 15, 22, 0.95) 54%, rgba(10, 15, 22, 0.84) 100%),
      url("assets/logbook.png");
    background-position: center, right -110px bottom 16px;
    background-size: auto, 300px auto;
  }

  .hero-copy {
    max-width: 92%;
  }

  h1 {
    font-size: 3.45rem;
  }

  h2 {
    font-size: 2.15rem;
  }

  .lead {
    font-size: 1.12rem;
  }

  .button {
    width: 100%;
  }

  .section {
    padding: 66px 0;
  }

  .thanks-card {
    padding: 28px;
  }

  .share-card {
    min-height: 360px;
  }
}