/* =========================================================
   BASE
   Resets, typography, container, buttons.
   ========================================================= */

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

html {
  scroll-behavior: smooth;
  /* Matches sticky header height (68px mobile / 76px desktop) + breathing room */
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}
@media (min-width: 960px) {
  html { scroll-padding-top: 96px; }
}

html, body { overflow-x: clip; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--bone);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

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

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;            /* light — luxury restraint */
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
  margin: 0 0 var(--space-4);
  color: inherit;
}

.h1 { font-size: var(--fs-h1); }
.h2 { font-size: var(--fs-h2); }
.h3 { font-size: var(--fs-h3); line-height: var(--lh-snug); }

/* Italic gold emphasis — the brand's headline-callout pattern.
   Used on hero H1 ("data-backed") and approach H2 ("Applied to real estate"). */
.h1 em, .h2 em {
  font-style: italic;
  font-weight: 300;
  color: var(--gold);
}

p {
  margin: 0 0 var(--space-4);
  color: inherit;
  max-width: 64ch;
}

.lead {
  font-size: var(--fs-lead);
  line-height: 1.55;
  max-width: 56ch;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

/* Eyebrow — tracked uppercase label, the signature small-text style.
   Allows wrapping at narrow widths so long labels never overflow.
   Uses bright gold by default (dark backgrounds); switches to the
   darker antique-gold on light backgrounds to maintain WCAG AA. */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-label);
  font-weight: 400;
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-4);
  max-width: 100%;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  flex: 0 0 auto;
}
@media (min-width: 720px) {
  .eyebrow { gap: 0.85rem; }
  .eyebrow::before { width: 28px; }
}
/* Light-section eyebrows use the contrast-safe gold variant */
.section-light .eyebrow { color: var(--gold-on-light); }

/* On-dark variants of typography */
.on-dark { color: var(--on-dark); }
.on-dark p { color: var(--on-dark-muted); }

.muted { color: var(--ink-muted); }

/* When .muted appears inside any dark-context section, resolve
   against the dark background instead of the light. */
.on-dark .muted,
.section-dark .muted,
.hero .muted,
.approach .muted,
.site-footer .muted {
  color: var(--on-dark-muted);
}

/* Visually hidden but accessible to assistive tech that needs it.
   Used for honeypot inputs (which we keep out of the tab order
   anyway via tabindex="-1") and offscreen text. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus visibility */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Skip link — hidden offscreen until a keyboard user focuses it,
   then slides into view at the top of the page. */
.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 200;
  padding: 0.85rem 1.25rem;
  background: var(--navy);
  color: var(--gold);
  border: 1px solid var(--gold);
  font-family: var(--font-label);
  font-size: 0.74rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: top 200ms var(--ease-out);
}
.skip-link:focus {
  top: 1rem;
  outline: none;
}

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

.container--narrow {
  max-width: 880px;
}

/* ---------- Section rhythm ---------- */
section {
  padding-block: var(--section-y);
  position: relative;
}

.section-dark {
  background: var(--navy);
  color: var(--on-dark);
}
.section-dark p { color: var(--on-dark-muted); }

.section-light {
  background: var(--bone);
  color: var(--ink);
}

/* ---------- Hairline ---------- */
.hairline {
  border: 0;
  height: 1px;
  background: var(--hairline-light);
  margin: 0;
}
.section-dark .hairline,
.hairline.on-dark { background: var(--hairline-dark); }

.hairline-vertical {
  width: 1px;
  background: var(--hairline-light);
  align-self: stretch;
}
.section-dark .hairline-vertical { background: var(--hairline-dark); }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --btn-bd: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1rem 1.3rem;            /* slightly less h-padding for mobile */
  font-family: var(--font-label);
  font-weight: 400;
  font-size: 0.76rem;
  letter-spacing: 0.18em;          /* tightened from 0.22 — cleaner wraps */
  text-transform: uppercase;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  border-radius: 0;                 /* sharp, not pill — luxury cue */
  cursor: pointer;
  transition: background var(--dur-med) var(--ease-out),
              color var(--dur-med) var(--ease-out),
              border-color var(--dur-med) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  min-height: 50px;                 /* generous tap target */
  white-space: nowrap;
}
@media (min-width: 720px) {
  .btn {
    padding: 0.95rem 1.6rem;
    font-size: 0.78rem;
    letter-spacing: 0.22em;
    gap: 0.7rem;
    min-height: 48px;
  }
}

.btn:hover {
  --btn-bg: var(--ink);
  --btn-fg: var(--bone);
}

.btn .arrow {
  display: inline-block;
  transition: transform var(--dur-med) var(--ease-out);
}
.btn:hover .arrow { transform: translateX(4px); }

/* Gold-bordered variant for use on dark backgrounds */
.btn-gold {
  --btn-bg: transparent;
  --btn-fg: var(--gold);
  --btn-bd: var(--gold);
}
.btn-gold:hover {
  --btn-bg: var(--gold);
  --btn-fg: var(--navy);
}

/* Solid filled — strongest CTA */
.btn-solid {
  --btn-bg: var(--ink);
  --btn-fg: var(--bone);
  --btn-bd: var(--ink);
}
.btn-solid:hover {
  --btn-bg: var(--gold);
  --btn-fg: var(--navy);
  --btn-bd: var(--gold);
}

.section-dark .btn {
  --btn-fg: var(--on-dark);
  --btn-bd: var(--on-dark-faint);
}
.section-dark .btn:hover {
  --btn-bg: var(--gold);
  --btn-fg: var(--navy);
  --btn-bd: var(--gold);
}

/* ---------- Section heading pattern ---------- */
.section-head {
  margin-bottom: var(--space-6);
  max-width: 760px;
}
@media (min-width: 720px) {
  .section-head { margin-bottom: var(--space-8); }
}
.section-head .h2 { margin-top: 0.4rem; }

/* ---------- Selection ---------- */
::selection {
  background: var(--gold);
  color: var(--navy);
}