:root {
  --navy-950: #031025;
  --navy-900: #07172f;
  --navy-800: #102241;
  --teal-500: #00a6ad;
  --teal-400: #17b9bd;
  --sky-100: #e8f7f8;
  --white: #ffffff;
  --ink: #152033;
  --muted: #657085;
  --line: #dfe5ea;
  --surface: #f5f7f9;
  --focus: #ffcc4d;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow: 0 16px 40px rgba(3, 16, 37, .10);
  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -0.035em; }
h1 { font-size: clamp(2.8rem, 9vw, 5.5rem); }
h2 { font-size: clamp(2rem, 6vw, 3.4rem); }
h3 { font-size: clamp(1.3rem, 4vw, 1.75rem); }

::selection {
  background: var(--teal-500);
  color: var(--white);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 1000;
  background: var(--white);
  color: var(--navy-950);
  padding: .75rem 1rem;
  border-radius: .5rem;
  box-shadow: var(--shadow);
}
.skip-link:focus { top: 1rem; }