/* ============================================================
   Base — reset, layout primitives, typography, buttons
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

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

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

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

:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 2px; }

section[id] { scroll-margin-top: calc(var(--header-h) + 12px); }

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

/* Headings default to the display serif */
h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-weight: var(--fw-semi);
  line-height: var(--lh-snug);
}

/* Eyebrow / kicker */
.eyebrow {
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-med);
  letter-spacing: var(--ls-wide);
  color: var(--brand-600);
}

.accent { color: var(--brand-700); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-med);
  letter-spacing: .01em;
  padding: .85rem 1.5rem;
  border-radius: var(--r-pill);
  white-space: nowrap;
  transition: background var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.btn i { font-size: 1.05em; transition: transform var(--dur) var(--ease); }
.btn--primary {
  background: var(--brand-700);
  color: #fff;
  box-shadow: 0 8px 22px rgba(0, 38, 80, .22);
}
.btn--primary:hover {
  background: var(--brand-600);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 38, 80, .28);
}
.btn--primary:hover i { transform: translateX(3px); }
.btn--outline {
  background: transparent;
  border: 1px solid var(--brand-700);
  color: var(--brand-700);
  box-shadow: none;
}
.btn--outline:hover {
  background: var(--brand-700);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 38, 80, .22);
}
.btn--light {
  background: #fff;
  color: var(--brand-700);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .18);
}
.btn--light:hover {
  background: var(--brand-100);
  color: var(--brand-700);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, .24);
}
.btn--block { width: 100%; }

/* Helpers */
.u-serif { font-family: var(--font-serif); }
.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;
}

/* Scroll reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .08s; }
[data-reveal][data-delay="2"] { transition-delay: .16s; }
[data-reveal][data-delay="3"] { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .btn, .btn i { transition: none; }
}