/* ==========================================================================
   Base
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { padding: 0; margin: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
input, textarea, select { font: inherit; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--lh-tight);
  color: var(--primary-dark);
  margin: 0;
  letter-spacing: -0.01em;
}
h1 { font-size: var(--fs-h1); letter-spacing: -0.02em; }
h2 { font-size: var(--fs-h2); letter-spacing: -0.015em; }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.lead { font-size: var(--fs-lead); line-height: var(--lh-snug); color: var(--text-soft); }
.muted { color: var(--muted); }

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary-dark);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

/* Focus states */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2.5px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.section {
  padding-block: var(--sp-8);
}
.section--tight { padding-block: var(--sp-7); }
.section--alt { background: var(--surface-alt); }
.section--dark {
  background: linear-gradient(160deg, var(--primary-dark), var(--primary-darker));
  color: #EAF3F2;
}
.section--dark h2, .section--dark h3 { color: #fff; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.section--dark .eyebrow { color: #8FCFC9; }

.section-heading {
  max-width: 700px;
  margin-bottom: var(--sp-6);
}
.section-heading--center { margin-inline: auto; text-align: center; }
.section-heading > .eyebrow { margin-bottom: var(--sp-2); }
.section-heading > h2 { margin-bottom: var(--sp-3); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Reveal-on-scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}