/* ============================================================
   grow-in 7 — shared site nav (sticky, frosted, dropdown)
   Loaded on every content page alongside style.css / pages.css.
   Hero pages add <body class="nav-overlay"> → nav is transparent
   over the hero, then frosts on scroll. Other pages get the frosted
   bar from the top + matching body top-padding.
   Needs js/nav.js for scroll-frost, the mobile panel and a11y.
   ============================================================ */

:root {
  --site-nav-h: 64px;
}

html {
  scroll-padding-top: 84px;
} /* anchor targets clear the fixed bar */
body:not(.nav-overlay) {
  padding-top: var(--site-nav-h);
} /* non-hero pages */
body.nav-locked {
  overflow: hidden;
} /* while the mobile menu is open */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(247, 243, 235, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line, rgba(26, 26, 26, 0.12));
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease,
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  transform: none !important;
}
/* transparent while sitting over a hero; frosts once scrolled */
body.nav-overlay .site-nav {
  background: transparent;
  border-bottom-color: transparent;
  backdrop-filter: none;
}
body.nav-overlay .site-nav.is-scrolled {
  background: rgba(247, 243, 235, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom-color: var(--line, rgba(26, 26, 26, 0.12));
  box-shadow: 0 8px 30px rgba(26, 26, 26, 0.07);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  max-width: 1440px;
  margin: 0 auto;
  padding: 12px var(--pad-x, clamp(20px, 5vw, 96px));
}

/* logo */
.site-nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display, sans-serif);
  font-weight: 800;
  font-size: 21px;
  color: var(--ink, #1a1a1a);
  white-space: nowrap;
}
.site-nav__logo svg {
  width: 28px;
  height: 28px;
}
.site-nav__logo em {
  color: var(--primary, #c4351f);
  font-style: normal;
}

/* primary links */
.site-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 30px);
  margin-left: auto;
}
.site-nav__links > a,
.site-nav__drop-trigger {
  font-family: var(--font-body, sans-serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-soft, #3a3a3a);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: color 0.2s ease;
}
.site-nav__links > a:hover,
.site-nav__drop-trigger:hover {
  color: var(--primary, #c4351f);
}
.site-nav__links a[aria-current="page"] {
  color: var(--ink, #1a1a1a);
}
.site-nav__caret {
  font-size: 11px;
  transition: transform 0.25s ease;
}

/* dropdown */
.site-nav__has-drop {
  position: relative;
}
/* invisible bridge across the trigger→panel gap so hover isn't lost mid-move */
.site-nav__has-drop::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 18px;
}
.site-nav__drop {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px 18px;
  min-width: 340px;
  padding: 14px;
  background: var(--surface, #fff);
  border: 1px solid var(--line, rgba(26, 26, 26, 0.12));
  border-radius: 18px;
  box-shadow: 0 26px 60px rgba(26, 26, 26, 0.16);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
}
.site-nav__has-drop:hover .site-nav__drop,
.site-nav__has-drop:focus-within .site-nav__drop,
.site-nav__has-drop.is-open .site-nav__drop {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.site-nav__has-drop:hover .site-nav__caret,
.site-nav__has-drop.is-open .site-nav__caret {
  transform: rotate(180deg);
}
/* narrower single-column variant for the short Services list */
.site-nav__drop--services {
  grid-template-columns: 1fr;
  min-width: 190px;
}
.site-nav__drop a {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft, #3a3a3a);
  padding: 9px 12px;
  border-radius: 10px;
  transition: background 0.18s ease, color 0.18s ease;
}
.site-nav__drop a:hover {
  background: var(--bg-alt, #efe9dd);
  color: var(--ink, #1a1a1a);
}
.site-nav__drop-all {
  grid-column: 1 / -1;
  margin-top: 4px;
  color: var(--primary, #c4351f) !important;
  font-weight: 700 !important;
  border-top: 1px solid var(--line, rgba(26, 26, 26, 0.12));
  border-radius: 0 !important;
  padding-top: 12px !important;
}

/* CTA */
.site-nav__cta {
  background: var(--ink, #1a1a1a);
  color: var(--bg, #f7f3eb);
  font-family: var(--font-body, sans-serif);
  font-weight: 700;
  font-size: 14.5px;
  padding: 11px 20px;
  border-radius: 999px;
  white-space: nowrap;
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
}
.site-nav__cta:hover {
  background: var(--primary, #c4351f);
  color: #fff;
  transform: translateY(-1px);
}

/* burger (mobile only) */
.site-nav__burger {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.site-nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink, #1a1a1a);
  transition: transform 0.3s ease, opacity 0.2s ease;
}
.site-nav.is-open .site-nav__burger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-nav.is-open .site-nav__burger span:nth-child(2) {
  opacity: 0;
}
.site-nav.is-open .site-nav__burger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* mobile panel */
.site-nav__mobile {
  display: none;
  /* explicit height (not bottom:0) — the frosted header's backdrop-filter
     makes it the containing block for fixed children, so bottom:0 would size
     the panel to the header, not the viewport. */
  position: fixed;
  top: var(--site-nav-h);
  left: 0;
  right: 0;
  height: calc(100vh - var(--site-nav-h));
  height: calc(100dvh - var(--site-nav-h));
  background: var(--bg, #f7f3eb);
  padding: 24px var(--pad-x, 24px) 40px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}
.site-nav.is-open .site-nav__mobile {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.site-nav__mobile nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.site-nav__mobile a {
  font-family: var(--font-display, sans-serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--ink, #1a1a1a);
  padding: 12px 0;
  border-bottom: 1px solid var(--line, rgba(26, 26, 26, 0.1));
}
.site-nav__m-label {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink-mute, #6b6b6b);
  margin-top: 18px;
  padding-bottom: 6px;
}
.site-nav__m-sub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}
.site-nav__m-sub a {
  font-family: var(--font-body, sans-serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-soft, #3a3a3a);
  padding: 9px 0;
}
.site-nav__mobile .site-nav__cta {
  margin-top: 22px;
  text-align: center;
  font-size: 17px;
  padding: 16px;
  border-bottom: 0;
  color: var(--bg, #f7f3eb);
}
.site-nav__mobile .site-nav__cta:hover {
  color: #fff;
}

/* breakpoint */
@media (max-width: 900px) {
  .site-nav__links,
  .site-nav__inner > .site-nav__cta {
    display: none;
  }
  .site-nav__burger {
    display: flex;
  }
  .site-nav__mobile {
    display: block;
  }
}

/* persistent mobile CTA — the header CTA is collapsed into the burger on
   phones, so keep a thumb-friendly "Start" always reachable. Injected by
   js/nav.js so it needs no per-page markup. */
.site-nav__sticky {
  display: none;
}
@media (max-width: 900px) {
  .site-nav__sticky {
    display: block;
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: 14px;
    z-index: 190;
    text-align: center;
    background: var(--primary, #c4351f);
    color: #fff;
    font-family: var(--font-display, sans-serif);
    font-weight: 800;
    font-size: 16px;
    padding: 15px 18px;
    border-radius: 999px;
    box-shadow: 0 14px 34px rgba(196, 53, 31, 0.42);
    padding-bottom: calc(15px + env(safe-area-inset-bottom, 0px));
    transition: opacity 0.25s ease, transform 0.25s ease;
  }
}
/* hide it while the mobile menu is open (the menu has its own CTA) */
body.nav-locked .site-nav__sticky {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

@media (prefers-reduced-motion: reduce) {
  .site-nav,
  .site-nav__drop,
  .site-nav__mobile {
    transition: none;
  }
}
