:root {
  color-scheme: light;
  --bg: #f8faf7;
  --paper: #ffffff;
  --ink: #111827;
  --muted: #5b6472;
  --line: #d8ded6;
  --line-strong: #b8c2b4;
  --green: #1f8a5f;
  --blue: #1f67d2;
  --red: #b72424;
  --amber: #c8871c;
  --shadow: 0 16px 36px rgba(17, 24, 39, 0.08);
  --content: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(31, 138, 95, 0.08), transparent 26%, rgba(31, 103, 210, 0.08) 64%, transparent),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(216, 222, 214, 0.8);
  background: rgba(248, 250, 247, 0.9);
  backdrop-filter: blur(18px);
}

.nav-shell,
.hero-inner,
.apps-section,
.latest-section,
.strategy-section,
.site-footer {
  width: min(100% - 32px, var(--content));
  margin-inline: auto;
}

.nav-shell {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #111827;
  color: #ffffff;
  font-size: 0.82rem;
}

.nav-links,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a,
.footer-links a,
.app-card a,
.post-card a,
.doc-link a {
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.hero-section {
  min-height: min(760px, calc(100vh - 140px));
  display: flex;
  align-items: center;
  padding: 54px 0 40px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(330px, 1.1fr);
  gap: 44px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 12ch;
  margin-bottom: 18px;
  font-size: 5.4rem;
  line-height: 0.92;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.17rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.button-primary {
  border-color: #111827;
  background: #111827;
  color: #ffffff;
}

.button-secondary {
  background: #ffffff;
  color: var(--ink);
}

.app-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.app-icon-link {
  display: grid;
  min-height: 186px;
  align-content: space-between;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
  color: var(--ink);
  font-weight: 850;
  text-decoration: none;
}

.app-icon-link img {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 12px 22px rgba(17, 24, 39, 0.14);
}

.app-icon-link.storage {
  border-top: 4px solid var(--green);
}

.app-icon-link.aura {
  border-top: 4px solid var(--blue);
}

.app-icon-link.pure {
  border-top: 4px solid var(--red);
}

.app-icon-link.math {
  border-top: 4px solid var(--amber);
}

.apps-section,
.latest-section,
.strategy-section {
  padding: 72px 0;
  border-top: 1px solid rgba(184, 194, 180, 0.5);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading h2 {
  margin-bottom: 14px;
  font-size: 3rem;
  line-height: 1.02;
  letter-spacing: 0;
}

.section-heading p,
.strategy-grid p,
.doc-link,
.site-footer p {
  color: var(--muted);
  line-height: 1.7;
}

.app-grid,
.post-grid,
.strategy-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.app-card,
.post-card,
.strategy-grid article {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.84);
}

.app-card {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.app-card-top {
  position: relative;
  min-height: 186px;
  overflow: hidden;
  border: 1px solid rgba(216, 222, 214, 0.9);
  border-radius: 8px;
  background: #eef2ec;
}

.app-card-icon {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 2;
  width: 72px;
  height: 72px;
  border-radius: 16px;
  box-shadow: 0 12px 24px rgba(17, 24, 39, 0.2);
}

.app-preview {
  width: 100%;
  height: 210px;
  object-fit: cover;
  object-position: top center;
}

.app-storage .app-preview,
.app-pure .app-preview,
.app-math .app-preview {
  object-position: top center;
}

.app-card h3,
.post-card h3,
.strategy-grid h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
  line-height: 1.2;
}

.app-card p,
.post-card p {
  color: var(--muted);
  line-height: 1.62;
}

.app-kicker,
.post-meta {
  margin-bottom: 8px;
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.app-storage .app-kicker {
  color: var(--green);
}

.app-aura .app-kicker {
  color: var(--blue);
}

.app-pure .app-kicker {
  color: var(--red);
}

.app-math .app-kicker {
  color: var(--amber);
}

.latest-heading {
  display: flex;
  max-width: none;
  justify-content: space-between;
  gap: 30px;
}

.latest-heading > p {
  max-width: 420px;
}

.feed-status {
  min-height: 24px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.post-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.post-card {
  padding: 18px;
}

.post-card h3 a {
  color: var(--ink);
}

.strategy-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.strategy-grid article {
  padding: 18px;
}

.doc-link {
  margin-top: 20px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 34px 0 48px;
  border-top: 1px solid rgba(184, 194, 180, 0.5);
}

.site-footer > div:first-child {
  max-width: 460px;
}

.footer-links {
  justify-content: flex-end;
  max-width: 560px;
}

.not-found {
  min-height: 100vh;
  width: min(100% - 32px, 720px);
  margin-inline: auto;
  display: grid;
  align-content: center;
  gap: 16px;
}

.not-found h1 {
  max-width: none;
  margin: 20px 0 0;
}

.not-found p {
  color: var(--muted);
  font-size: 1.12rem;
}

@media (max-width: 980px) {
  h1 {
    font-size: 4.2rem;
  }

  .section-heading h2 {
    font-size: 2.55rem;
  }

  .hero-inner,
  .latest-heading,
  .site-footer {
    grid-template-columns: 1fr;
    display: grid;
  }

  .app-grid,
  .post-grid,
  .strategy-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .nav-shell {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .hero-section {
    min-height: auto;
    padding-top: 36px;
  }

  .app-strip,
  .app-grid,
  .post-grid,
  .strategy-grid {
    grid-template-columns: 1fr;
  }

  .app-icon-link {
    min-height: 154px;
  }

  h1 {
    max-width: 10ch;
    font-size: 2.8rem;
    line-height: 1.02;
  }

  .section-heading h2 {
    font-size: 2.1rem;
  }

  .hero-lede {
    max-width: 31ch;
  }
}