:root {
  color-scheme: light;
  --ink: #17191f;
  --ink-soft: #4f5563;
  --muted: #777e8e;
  --line: #dfe3ea;
  --line-strong: #cbd1dc;
  --canvas: #f4f6f9;
  --paper: #ffffff;
  --paper-soft: #f9fafc;
  --sun: #f3bf5b;
  --sun-soft: #fff2cf;
  --violet: #8b7af0;
  --violet-soft: #eeeaff;
  --blue: #4f8ee8;
  --blue-soft: #e7f1ff;
  --rose: #e98e78;
  --rose-soft: #ffebe6;
  --mint: #4ca782;
  --mint-soft: #e2f5ed;
  --shadow-sm: 0 1px 2px rgba(17, 22, 34, 0.05), 0 8px 24px rgba(17, 22, 34, 0.045);
  --shadow-lg: 0 24px 70px rgba(17, 22, 34, 0.1);
  --radius-sm: 16px;
  --radius-md: 24px;
  --radius-lg: 34px;
  --max-width: 1280px;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 2%, rgba(139, 122, 240, 0.1), transparent 24rem),
    radial-gradient(circle at 16% 4%, rgba(243, 191, 91, 0.12), transparent 26rem),
    var(--canvas);
  -webkit-font-smoothing: antialiased;
}

button,
a {
  font: inherit;
}

button {
  color: inherit;
}

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

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

p {
  color: var(--ink-soft);
  line-height: 1.66;
}

h1,
h2,
h3,
strong {
  letter-spacing: -0.035em;
}

h1 {
  max-width: 920px;
  margin-bottom: 28px;
  font-size: clamp(3.35rem, 7vw, 6.9rem);
  font-weight: 600;
  line-height: 0.98;
}

h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2.35rem, 4.5vw, 4.5rem);
  font-weight: 600;
  line-height: 1.03;
}

h3 {
  margin-bottom: 0;
  font-size: clamp(1.5rem, 2.3vw, 2.25rem);
  font-weight: 600;
  line-height: 1.14;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  border-radius: 14px;
  color: white;
  background: var(--ink);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 14px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(calc(100% - 32px), var(--max-width));
  min-height: 68px;
  margin: 14px auto 0;
  padding: 10px 12px 10px 14px;
  border: 1px solid rgba(203, 209, 220, 0.82);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 12px 40px rgba(20, 24, 33, 0.07);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  font-size: 1.02rem;
  font-weight: 650;
  letter-spacing: -0.025em;
}

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

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper-soft);
}

.desktop-nav a {
  padding: 8px 12px;
  border-radius: 10px;
  color: #5c6270;
  font-size: 0.85rem;
  font-weight: 550;
  transition: color 160ms ease, background 160ms ease;
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible {
  color: var(--ink);
  background: white;
  outline: none;
}

.runtime-pill {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 13px;
  border-radius: 13px;
  color: #515865;
  background: #f2f4f7;
  font-size: 0.78rem;
  font-weight: 550;
}

.runtime-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #a1a7b2;
  box-shadow: 0 0 0 4px rgba(161, 167, 178, 0.14);
}

.section,
.hero,
.principle-strip,
.closing-section,
.site-footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.section {
  padding: 124px 0 22px;
}

.section-heading {
  margin-bottom: 48px;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.65fr);
  align-items: end;
  gap: 60px;
}

.split-heading > p {
  margin-bottom: 4px;
  font-size: 1rem;
}

.eyebrow {
  margin-bottom: 18px;
  color: #686f7d;
  font-size: 0.84rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.eyebrow::before {
  display: inline-block;
  width: 22px;
  height: 2px;
  margin: 0 10px 3px 0;
  border-radius: 99px;
  background: var(--violet);
  content: "";
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 52px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 16px;
  font-size: 0.92rem;
  font-weight: 600;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(79, 142, 232, 0.34);
  outline-offset: 3px;
}

.button svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.button-primary {
  color: white;
  background: var(--ink);
  box-shadow: 0 12px 28px rgba(23, 25, 31, 0.18);
}

.button-secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.76);
}

.button-light {
  color: var(--ink);
  background: white;
}

::selection {
  color: var(--ink);
  background: var(--sun-soft);
}