/* ============================================================
   IPOOLGO — Base layer (reset, typography, layout primitives)
   Loaded after tokens.css.
   ============================================================ */

/* ---- Modern reset -------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
html:focus-within { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

img, picture, svg, video, canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
ul[role='list'], ol[role='list'] { list-style: none; padding: 0; }
a { color: var(--c-azure); text-decoration: none; transition: color var(--dur-fast) var(--ease); }
a:hover { color: var(--c-deep); }

/* ---- Typography ---------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--fw-semi);
  line-height: var(--lh-tight);
  letter-spacing: var(--track-tight);
  color: var(--c-ink);
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); font-family: var(--font-sans); font-weight: var(--fw-bold); letter-spacing: 0; }
p { text-wrap: pretty; }
p + p { margin-top: var(--sp-4); }
strong, b { font-weight: var(--fw-bold); }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--c-ink);
  font-weight: var(--fw-reg);
}

/* Eyebrow label above section titles */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  letter-spacing: var(--track-wide);
  text-transform: uppercase;
  color: var(--c-azure);
}
.eyebrow::before {
  content: '';
  width: 26px; height: 2px;
  background: var(--c-gold);
  border-radius: 2px;
}

/* Gold gradient accent for select words */
.text-accent { color: var(--c-gold); }
.text-gradient {
  background: linear-gradient(120deg, var(--c-aqua), var(--c-azure) 60%, var(--c-deep));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

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

.section { padding-block: clamp(3.5rem, 8vw, 7rem); }
.section-sm { padding-block: clamp(2.5rem, 5vw, 4rem); }
.section-head { max-width: 46rem; margin-bottom: clamp(2rem, 4vw, 3.25rem); }
.section-head.center { margin-inline: auto; text-align: center; }

/* Header offset: hero pages overlay the fixed header; others pad the top. */
body:not(.has-hero) main { padding-top: var(--header-h); }
.section-head .lead { margin-top: var(--sp-4); }

.bg-cream   { background: var(--c-cream); }
.bg-mist    { background: var(--c-mist); }
.bg-surface { background: var(--c-surface-2); }
.bg-deep    { background: var(--c-deep); color: #fff; }
.bg-deep h1, .bg-deep h2, .bg-deep h3 { color: #fff; }

/* Responsive auto-grid */
.grid { display: grid; gap: var(--sp-5); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); }

/* ---- Accessibility ------------------------------------- */
.skip-link {
  position: absolute; left: var(--sp-4); top: -3rem;
  z-index: var(--z-toast);
  background: var(--c-deep); color: #fff;
  padding: var(--sp-3) var(--sp-4); border-radius: var(--r-sm);
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: var(--sp-4); color: #fff; }

:where(a, button, input, textarea, select, [tabindex]):focus-visible {
  outline: 3px solid var(--c-aqua);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.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;
}

/* ---- Scroll-reveal base (progressive enhancement) ------ */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  will-change: opacity, transform;
}
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal][data-reveal-delay='1'] { transition-delay: .08s; }
[data-reveal][data-reveal-delay='2'] { transition-delay: .16s; }
[data-reveal][data-reveal-delay='3'] { transition-delay: .24s; }
[data-reveal][data-reveal-delay='4'] { transition-delay: .32s; }

/* If JS is off, never hide content */
.no-js [data-reveal] { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  html { scroll-behavior: auto; }
}