/* =========================================================
   CDL — Base layer: reset, typography, layout primitives
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--ch-font-body);
  font-size: var(--ch-text-md);
  line-height: 1.85;
  color: var(--ch-ink);
  background-color: var(--ch-bg);
  background-image: linear-gradient(135deg, var(--ch-bg) 0%, var(--ch-bg-2) 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body.is-locked { overflow: hidden; }

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
ul, ol, dl, dd, figure { margin: 0; padding: 0; }
li { list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

:focus-visible {
  outline: 3px solid var(--ch-ring);
  outline-offset: 3px;
  border-radius: 6px;
}
:focus:not(:focus-visible) { outline: none; }

::selection { background: rgba(4, 75, 254, 0.2); }

/* ---- Layout primitives ---- */
.container {
  width: 100%;
  max-width: var(--ch-container);
  margin-inline: auto;
  padding-inline: var(--ch-gutter);
}
.container--wide { max-width: 1440px; }

/* Inline SVG sprite (icon definitions only) */
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.stack > * + * { margin-block-start: var(--flow, 1rem); }

.section { padding-block: var(--ch-section-y); position: relative; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  inset-block-start: 12px;
  inset-inline-start: 12px;
  z-index: calc(var(--ch-z-header) + 5);
  padding: 10px 18px;
  border-radius: var(--ch-r-pill);
  background: var(--ch-ink);
  color: var(--ch-bg);
  font-weight: 600;
  transform: translateY(-180%);
  transition: transform var(--ch-dur) var(--ch-ease-out);
}
.skip-link:focus { transform: translateY(0); }

/* ---- Eyebrow / pill label ---- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ch-font-body);
  font-size: var(--ch-text-xs);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ch-accent);
  background: color-mix(in srgb, var(--ch-blue) 8%, transparent);
  border: 1px solid var(--ch-line);
  border-radius: var(--ch-r-pill);
  padding: 6px 14px;
}
.eyebrow__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ch-coral);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--ch-coral) 16%, transparent);
}

/* ---- Headings ---- */
.display {
  font-family: var(--ch-font-display);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
h1.display { font-size: var(--ch-display-1); }
h2.display { font-size: var(--ch-display-2); }
h3.display { font-size: var(--ch-display-3); }

.lead { color: var(--ch-ink-soft); font-size: var(--ch-text-lg); }
.muted { color: var(--ch-muted); }

.section-head { max-width: 46rem; margin-block-end: clamp(32px, 4vw, 60px); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head__title { margin-block: 1rem 0.7rem; }
.section-head__lead { color: var(--ch-muted); font-size: var(--ch-text-md); }

/* ---- Numeric / tabular ---- */
.tnum { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }

/* ---- Gradient text accent ---- */
.grad-blue {
  background: linear-gradient(100deg, var(--ch-blue) 0%, var(--ch-coral) 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}