/* base.css — reset, element defaults, layout layer, shared components.
   Tokens only (contracts/design-tokens.md); BEM-lite; mobile-first. */

/* ---------- Reset + element defaults ---------- */
*, *::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(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: var(--leading-tight);
  margin: 0 0 var(--space-5);
  text-wrap: balance;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-lg); }

p { margin: 0 0 var(--space-4); }
ul { margin: 0; padding: 0; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

::selection {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* ---------- Layout layer ---------- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.section {
  padding-block: var(--section-pad-y);
}

[data-theme="dark"] {
  color: var(--color-text);
  background: var(--color-bg);
}

/* ---------- Shared type components ---------- */
/* Eyebrow with the roof-pitch hairline (design signature) */
.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.eyebrow::before {
  content: "";
  width: var(--space-6);
  height: 2px;
  flex: none;
  background: linear-gradient(90deg, var(--color-text) 50%, var(--color-accent) 50%);
  transform: rotate(-8deg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  text-align: center;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
}
@media (prefers-reduced-motion: no-preference) {
  .btn {
    transition:
      background-color var(--duration-fast) var(--ease-standard),
      color var(--duration-fast) var(--ease-standard),
      border-color var(--duration-fast) var(--ease-standard);
  }
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-bg);
}
.btn--primary:hover { background: var(--color-primary-dark); }

.btn--gold {
  background: var(--color-accent);
  color: var(--color-bg);
}
.btn--gold:hover {
  background: var(--color-primary);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 94%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  min-height: 4.25rem;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  text-decoration: none;
  margin-right: auto;
  white-space: nowrap;
}
.logo__img {
  height: 3rem;
  width: auto;
}

.logo__mark {
  position: relative;
  width: 1.5rem;
  height: 0.75rem;
  align-self: center;
}
.logo__mark::before,
.logo__mark::after {
  content: "";
  position: absolute;
  bottom: 0;
  width: 68%;
  height: 2px;
  background: var(--color-text);
  transform-origin: left bottom;
}
.logo__mark::before { left: 0; transform: rotate(-30deg); }
.logo__mark::after {
  right: 0;
  background: var(--color-accent);
  transform-origin: right bottom;
  transform: rotate(30deg);
}
.logo__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.logo__sub {
  display: none;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
}

@media (min-width: 640px) {
  .logo__sub { display: inline; }
}

.site-nav {
  display: none;
  gap: var(--space-6);
}
.site-nav a {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text-muted);
  padding-block: var(--space-2);
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--color-text); }
.site-nav a[aria-current="page"] {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

/* Call button: compact label on mobile (call-first niche — always visible),
   full number from 640px up. */
.site-header__call { padding-inline: var(--space-4); }
.site-header__call-full { display: none; }

@media (min-width: 640px) {
  .site-header__call { padding-inline: var(--space-6); }
  .site-header__call-short { display: none; }
  .site-header__call-full { display: inline; }
}

.nav-toggle {
  display: grid;
  gap: 5px;
  padding: var(--space-3);
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  width: 1.375rem;
  height: 2px;
  background: var(--color-text);
}

/* Mobile nav open state */
.site-header.is-open .site-nav {
  display: grid;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  gap: 0;
  padding: var(--space-4);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

/* Mobile menu entrance — panel slides down, links cascade (motion-safe) */
@media (prefers-reduced-motion: no-preference) {
  .site-header.is-open .site-nav {
    animation: nav-drop var(--duration-base) var(--ease-out-expo);
  }
  .site-header.is-open .site-nav a {
    opacity: 0;
    transform: translateY(calc(-1 * var(--space-2)));
    animation: nav-link-in var(--duration-base) var(--ease-out-expo) forwards;
  }
  .site-header.is-open .site-nav a:nth-child(1) { animation-delay: 60ms; }
  .site-header.is-open .site-nav a:nth-child(2) { animation-delay: 120ms; }
  .site-header.is-open .site-nav a:nth-child(3) { animation-delay: 180ms; }

  @keyframes nav-drop {
    from { opacity: 0; transform: translateY(calc(-1 * var(--space-3))); }
    to { opacity: 1; transform: none; }
  }
  @keyframes nav-link-in {
    to { opacity: 1; transform: none; }
  }
}

@media (min-width: 1024px) {
  .site-nav { display: flex; }
  .nav-toggle { display: none; }
}

/* ---------- Hero (shared shell; media variant on home) ---------- */
.section--hero {
  position: relative;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-8);
}

.hero__title {
  font-size: var(--text-hero);
  margin-bottom: var(--space-5);
  max-width: 14em;
}

.hero__sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 34em;
  margin-bottom: var(--space-6);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.hero--compact .hero__content { padding-block: var(--space-6); }

/* Hero text entrance — staggered rise, motion-safe */
@media (prefers-reduced-motion: no-preference) {
  .hero__content > * {
    opacity: 0;
    transform: translateY(var(--space-5));
    animation: hero-rise var(--duration-slow) var(--ease-out-expo) forwards;
  }
  .hero__content > :nth-child(1) { animation-delay: 100ms; }
  .hero__content > :nth-child(2) { animation-delay: 220ms; }
  .hero__content > :nth-child(3) { animation-delay: 340ms; }
  .hero__content > :nth-child(4) { animation-delay: 460ms; }
  .hero__content > :nth-child(5) { animation-delay: 580ms; }

  @keyframes hero-rise {
    to { opacity: 1; transform: none; }
  }
}

/* ---------- CTA band ---------- */
.section--cta { text-align: center; }
.cta__inner p {
  color: var(--color-text-muted);
  max-width: 36em;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}
.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8) var(--space-5);
}
.site-footer__inner {
  display: grid;
  gap: var(--space-6);
  padding-bottom: var(--space-6);
}
.site-footer__tagline {
  color: var(--color-accent);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.site-footer__nav {
  display: grid;
  gap: var(--space-2);
}
.site-footer__nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.site-footer__nav a:hover { color: var(--color-accent); }
.site-footer__contact {
  font-style: normal;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.site-footer__contact a { color: inherit; }
.site-footer__legal {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-5);
}
.site-footer__legal p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin: 0;
}

@media (min-width: 640px) {
  .site-footer__inner {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

/* ---------- Scroll reveal (JS-gated; visible without JS) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js [data-reveal] {
    opacity: 0;
    transform: translateY(var(--space-4));
    transition:
      opacity var(--duration-slow) var(--ease-out-expo),
      transform var(--duration-slow) var(--ease-out-expo);
  }
  .js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  top: calc(-1 * var(--space-12));
  left: var(--space-4);
  z-index: 100;
  padding: var(--space-3) var(--space-5);
  background: var(--color-primary);
  color: var(--color-bg);
  text-decoration: none;
  border-radius: var(--radius-sm);
}
.skip-link:focus-visible { top: var(--space-4); }

/* ---------- Utilities ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}