:root {
  color-scheme: dark;
  --font-sans: "Satoshi", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #07111f;
  --bg-elevated: rgba(12, 24, 43, 0.78);
  --bg-panel: rgba(15, 29, 52, 0.84);
  --bg-soft: rgba(111, 159, 255, 0.12);
  --text: #ecf3ff;
  --text-muted: #9db0d1;
  --heading: #ffffff;
  --border: rgba(164, 194, 255, 0.18);
  --shadow: 0 24px 60px rgba(1, 7, 18, 0.35);
  --shadow-soft: 0 14px 30px rgba(2, 10, 24, 0.2);
  --gradient-primary: linear-gradient(135deg, #7aa2ff 0%, #53d2ff 52%, #89ffdb 100%);
  --gradient-surface: linear-gradient(180deg, rgba(30, 54, 96, 0.72), rgba(8, 17, 31, 0.92));
  --hero-ring: rgba(123, 164, 255, 0.2);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 999px;
  --content-width: min(1180px, calc(100vw - 48px));
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f7ff;
  --bg-elevated: rgba(255, 255, 255, 0.78);
  --bg-panel: rgba(255, 255, 255, 0.88);
  --bg-soft: rgba(90, 124, 204, 0.1);
  --text: #172235;
  --text-muted: #5d6d87;
  --heading: #091325;
  --border: rgba(86, 111, 164, 0.16);
  --shadow: 0 24px 60px rgba(51, 74, 117, 0.16);
  --shadow-soft: 0 14px 30px rgba(60, 90, 135, 0.14);
  --gradient-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(232, 240, 255, 0.82));
  --hero-ring: rgba(79, 112, 191, 0.16);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(90, 129, 255, 0.2), transparent 30%),
    radial-gradient(circle at 85% 10%, rgba(83, 210, 255, 0.18), transparent 24%),
    radial-gradient(circle at bottom right, rgba(137, 255, 219, 0.14), transparent 20%),
    var(--bg);
  color: var(--text);
}

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

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

button,
input {
  font: inherit;
}

main {
  display: grid;
  gap: 40px;
}

.page-shell {
  position: relative;
  overflow: clip;
}

.section {
  width: var(--content-width);
  margin: 0 auto;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 24px;
}

.section-heading h2,
h1,
h2,
h3 {
  color: var(--heading);
  margin: 0;
  line-height: 1.05;
}

h1 {
  font-size: clamp(1.9rem, 3.2vw, 3.2rem);
  letter-spacing: -0.035em;
  line-height: 1.05;
}

h2 {
  font-size: clamp(1.3rem, 2.2vw, 2rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

p {
  margin: 0;
  line-height: 1.7;
}

.eyebrow {
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 700;
  color: #71d0ff;
}

:root[data-theme="light"] .eyebrow {
  color: #356cff;
}

@media (max-width: 720px) {
  :root {
    --content-width: min(100vw - 32px, 1180px);
  }

  main {
    gap: 32px;
  }
}