/**
 * GCP — Base
 * Reset, typography defaults, utility classes shared across the page.
 */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-ink);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: var(--lh-tight);
  margin: 0;
  color: var(--color-navy-900);
  font-weight: 600;
}

p { margin: 0; }

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

button {
  font-family: inherit;
  cursor: pointer;
}

ul, ol { margin: 0; padding: 0; list-style: none; }

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* Visible keyboard focus everywhere — never remove outline without replacing it */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.section {
  padding-block: var(--space-2xl);
  scroll-margin-top: 84px;
  position: relative;
}

.section--tight { padding-block: var(--space-xl); }

.section--alt { background: var(--color-surface); }
.section--dark {
  background: linear-gradient(160deg, var(--color-navy-900), var(--color-navy-700));
  color: var(--color-white);
  overflow: hidden;
}
.section--dark h2, .section--dark h3 { color: var(--color-white); }

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-lg);
}

.section-head--center {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.section--dark .eyebrow { color: var(--color-primary-light); }

.section-title {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-sm);
}

.section-desc {
  color: var(--color-gray-600);
  font-size: var(--fs-md);
}

.section--dark .section-desc { color: rgba(255,255,255,0.72); }

/* Screen-reader only */
.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: absolute;
  left: var(--space-sm);
  top: -60px;
  background: var(--color-navy-900);
  color: var(--color-white);
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-sm);
  z-index: var(--z-modal);
  transition: top var(--duration-fast) var(--ease-out);
}
.skip-link:focus { top: var(--space-sm); }

/* Lazy-loaded image fade-in */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}
img[loading="lazy"].is-loaded { opacity: 1; }

/* Scroll-reveal base state (see animations + main.js) */
[data-reveal] {
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
  will-change: transform, opacity;
}
[data-reveal="up"]    { transform: translateY(28px); }
[data-reveal="left"]  { transform: translateX(-28px); }
[data-reveal="right"] { transform: translateX(28px); }
[data-reveal="zoom"]  { transform: scale(0.94); }
[data-reveal].is-visible {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}