/* Reset, typography and accessibility primitives. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-height) + var(--space-4));
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); color: var(--color-text); }
h5 { font-size: var(--text-base); }

p { margin: 0 0 var(--space-3); }

ul,
ol {
  margin: 0;
  padding: 0;
}

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

a {
  color: var(--color-cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover { color: #67e8f9; }

button {
  font: inherit;
  color: inherit;
}

strong { color: var(--color-text); font-weight: 600; }

:focus-visible {
  outline: 3px solid var(--color-cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

.icon {
  width: 1.1em;
  height: 1.1em;
  flex: none;
}

.visually-hidden {
  position: absolute !important;
  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;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-cyan);
  color: #04111a;
  font-weight: 600;
  transform: translateY(-200%);
}

.skip-link:focus { transform: none; color: #04111a; }

.gradient-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.glass {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}