:root {
  --bg: #f6f7f4;
  --surface: #ffffff;
  --text: #14181d;
  --muted: #4f5b66;
  --line: #d9dfdd;
  --primary: #1b4d6b;
  --primary-strong: #143a50;
  --shadow: 0 20px 50px rgba(20, 24, 29, 0.07);
  --radius: 1rem;
  --max-width: 70rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(1200px 700px at 95% -10%, rgba(27, 77, 107, 0.1), transparent 65%),
    radial-gradient(1000px 600px at -15% 30%, rgba(96, 136, 112, 0.09), transparent 70%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.75rem;
  background: var(--primary);
  color: #fff;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 0.75rem;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.slim {
  max-width: 46rem;
}

.section {
  padding: 4.5rem 0;
}

.section-head {
  margin-bottom: 1.75rem;
}

.section-head p {
  color: var(--muted);
  /* max-width: 56ch; */
  margin: 0.5rem 0 0;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Sora", "Trebuchet MS", sans-serif;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2rem, 7.5vw, 4rem);
}

h2 {
  font-size: clamp(1.6rem, 4.5vw, 2.35rem);
}

h3 {
  font-size: clamp(1.1rem, 2.8vw, 1.35rem);
}

p {
  margin: 0.8rem 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 87%, #ffffff 13%);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 85%, transparent 15%);
}

.header-inner {
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-name {
  font-family: "Sora", "Trebuchet MS", sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.menu-toggle {
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 0.625rem;
  background: var(--surface);
  display: grid;
  place-content: center;
  gap: 0.4rem;
  cursor: pointer;
}

.menu-toggle span {
  width: 1.2rem;
  height: 0.11rem;
  background: var(--text);
  transition: transform 220ms ease, opacity 220ms ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(0.25rem) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-0.25rem) rotate(-45deg);
}

.menu-list {
  list-style: none;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  margin: 0;
  padding: 0.8rem;
  position: absolute;
  left: 1rem;
  right: 1rem;
  top: 4.7rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.menu-list a {
  display: block;
  padding: 0.7rem 0.5rem;
  border-radius: 0.5rem;
  color: var(--muted);
  font-weight: 500;
}

.menu-list a:hover,
.menu-list a:focus-visible {
  background: color-mix(in srgb, var(--primary) 10%, #fff 90%);
  color: var(--text);
  outline: none;
}

.main-nav.is-open .menu-list {
  display: flex;
}

.hero {
  padding-top: 5rem;
}

.hero-inner {
  max-width: 52rem;
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.77rem;
}

.lead {
  max-width: 62ch;
  color: var(--muted);
  font-size: clamp(1.03rem, 2vw, 1.2rem);
}

.hero-age {
  color: var(--text);
  margin-top: 1.2rem;
  font-weight: 500;
}

.button {
  margin-top: 1.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.7rem 1.15rem;
  border-radius: 0.75rem;
  background: var(--primary);
  color: #f7fafc;
  font-weight: 600;
  transition: transform 220ms ease, background-color 220ms ease, box-shadow 220ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  background: var(--primary-strong);
  box-shadow: 0 10px 24px rgba(20, 58, 80, 0.24);
  outline: none;
}

.manifesto {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.manifesto p {
  font-size: clamp(1.02rem, 2.8vw, 1.2rem);
}

.metrics,
.grid {
  display: grid;
  gap: 1rem;
}

.metrics {
  grid-template-columns: 1fr;
}

.card,
.metric {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.card:hover,
.card:focus-within,
.metric:hover,
.metric:focus-within {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--line) 65%);
  box-shadow: var(--shadow);
}

.card p,
.metric p,
.future-note {
  color: var(--muted);
}

.product-grid {
  align-items: stretch;
}

.product-card {
  display: flex;
  flex-direction: column;
  padding: 1.35rem;
}

.product-kind {
  margin: 0 0 0.7rem;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.product-slogan {
  margin: 0.55rem 0 0;
  color: var(--text);
  font-weight: 600;
}

.product-list {
  display: grid;
  gap: 0.45rem;
  margin: auto 0 0;
  padding: 1rem 0 0;
  list-style: none;
  color: var(--muted);
}

.product-list li {
  position: relative;
  padding-left: 1rem;
}

.product-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 0.38rem;
  height: 0.38rem;
  border-radius: 999px;
  background: var(--primary);
}

.future-note {
  margin-top: 1.1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  text-align: center;
  padding-bottom: 3rem;
}

.site-footer blockquote {
  margin: 0;
  font-size: clamp(1.05rem, 3vw, 1.45rem);
  line-height: 1.5;
}

.footer-meta {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 1rem;
  color: var(--muted);
}

.footer-meta a {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.copyright {
  margin-top: 1.1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 560ms ease, transform 560ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 48rem) {
  .section {
    padding: 5.5rem 0;
  }

  .menu-toggle {
    display: none;
  }

  .menu-list {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.3rem;
    border: 0;
    box-shadow: none;
    background: transparent;
    padding: 0;
  }

  .menu-list a {
    padding: 0.45rem 0.8rem;
  }

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

  .cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .cards-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 72rem) {
  .cards-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .header-inner {
    min-height: 5rem;
  }

  .hero {
    padding-top: 6.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}