/* ============================================================
   Section 01 — Nav
   Fixed ink-glass bar, condenses on scroll, scroll-progress line,
   full-screen overlay menu on mobile. All selectors scoped under
   .sec-01-nav (plus a required body-scroll-lock state class the
   nav JS toggles while the mobile overlay is open).
   ============================================================ */

.sec-01-nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 200;
  font-family: var(--font-body);
}

/* --- Bar --- */
.sec-01-nav .sec-01-nav__bar {
  position: relative;
  /* Must paint above the mobile overlay (z-index 199) so the toggle stays clickable while the menu is open */
  z-index: 210;
  background: hsl(260 35% 6% / 0.62);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid hsl(0 0% 100% / 0.08);
  transition: background-color 400ms var(--ease-out), border-color 400ms var(--ease-out);
}

html.is-scrolled .sec-01-nav .sec-01-nav__bar {
  background: hsl(260 40% 5% / 0.86);
  border-bottom-color: hsl(0 0% 100% / 0.12);
  box-shadow: var(--shadow-soft);
}

.sec-01-nav .sec-01-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(1rem, 3vw, 2.5rem);
  height: var(--nav-h);
  transition: height 400ms var(--ease-out);
}

html.is-scrolled .sec-01-nav .sec-01-nav__inner {
  height: calc(var(--nav-h) - 18px);
}

/* --- Logo --- */
.sec-01-nav .sec-01-nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 0.9rem + 0.4vw, 1.35rem);
  letter-spacing: -0.01em;
  color: var(--text-on-ink);
  text-decoration: none;
  white-space: nowrap;
}

.sec-01-nav .sec-01-nav__logo-dot {
  width: 0.4em;
  height: 0.4em;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* Full logo lockup (client build): the client's actual logo file, icon +
   script wordmark baked in as one image — no separate live-text wordmark. */
.sec-01-nav .sec-01-nav__logo-mark {
  height: 44px;
  width: auto;
  flex-shrink: 0;
  display: block;
  transition: height 400ms var(--ease-out);
}

html.is-scrolled .sec-01-nav .sec-01-nav__logo-mark { height: 36px; }

@media (max-width: 480px) {
  .sec-01-nav .sec-01-nav__logo-mark { height: 36px; }
}

/* --- Center links --- */
.sec-01-nav .sec-01-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2vw, 2.25rem);
}

.sec-01-nav .sec-01-nav__link {
  position: relative;
  color: var(--text-on-ink-dim);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  padding-block: 0.4rem;
  white-space: nowrap;
  transition: color 200ms var(--ease-out);
}

.sec-01-nav .sec-01-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 320ms var(--ease-out);
}

.sec-01-nav .sec-01-nav__link:hover,
.sec-01-nav .sec-01-nav__link:focus-visible {
  color: var(--text-on-ink);
}

.sec-01-nav .sec-01-nav__link:hover::after,
.sec-01-nav .sec-01-nav__link:focus-visible::after {
  transform: scaleX(1);
}

/* --- Multi-location slot (kept dark-safe if ever enabled) --- */
.sec-01-nav .sec-01-nav__locations { position: relative; }
.sec-01-nav .sec-01-nav__locations-toggle {
  background: none;
  border: none;
  color: var(--text-on-ink-dim);
  font: inherit;
  font-size: 0.95rem;
  cursor: pointer;
}
.sec-01-nav .sec-01-nav__locations-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.75rem;
  min-width: 180px;
  background: var(--ink-2);
  border-radius: var(--radius-card);
  padding: 0.5rem;
  box-shadow: var(--shadow-lift);
}

/* --- Right actions --- */
.sec-01-nav .sec-01-nav__actions {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
}

.sec-01-nav .sec-01-nav__phone {
  color: var(--text-on-ink-dim);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color 200ms var(--ease-out);
}
.sec-01-nav .sec-01-nav__phone:hover { color: var(--text-on-ink); }

.sec-01-nav .sec-01-nav__cta {
  padding-block: 0.7rem;
  font-size: 0.9rem;
  white-space: nowrap;
}

/* --- Scroll progress: clean straight bar driven by --scroll-progress --- */
.sec-01-nav .sec-01-nav__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  overflow: hidden;
}

.sec-01-nav .sec-01-nav__progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--accent);
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left;
}

/* --- Hamburger toggle (mobile) --- */
.sec-01-nav .sec-01-nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.sec-01-nav .sec-01-nav__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  margin-inline: auto;
  background: var(--text-on-ink);
  border-radius: 2px;
  transition: transform 320ms var(--ease-spring), opacity 200ms var(--ease-out);
}

.sec-01-nav .sec-01-nav__toggle[aria-expanded="true"] .sec-01-nav__toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.sec-01-nav .sec-01-nav__toggle[aria-expanded="true"] .sec-01-nav__toggle-line:nth-child(2) {
  opacity: 0;
}
.sec-01-nav .sec-01-nav__toggle[aria-expanded="true"] .sec-01-nav__toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Full-screen ink overlay menu --- */
.sec-01-nav .sec-01-nav__overlay {
  position: fixed;
  inset: 0;
  z-index: 199;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(2.5rem, 8vh, 4rem);
  padding: clamp(2rem, 8vw, 4rem);
  background: var(--ink);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 380ms var(--ease-out), visibility 380ms;
}

.sec-01-nav .sec-01-nav__overlay.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.sec-01-nav .sec-01-nav__overlay-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sec-01-nav .sec-01-nav__overlay-link {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.25rem, 1.5rem + 5vw, 3.75rem);
  letter-spacing: -0.02em;
  color: var(--text-on-ink);
  text-decoration: none;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 420ms var(--ease-out), transform 420ms var(--ease-out);
  transition-delay: 0ms;
}

.sec-01-nav .sec-01-nav__overlay.is-open .sec-01-nav__overlay-link {
  opacity: 1;
  transform: none;
  transition-delay: calc(var(--i, 0) * 70ms + 80ms);
}

.sec-01-nav .sec-01-nav__overlay-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  opacity: 0;
  transition: opacity 420ms var(--ease-out);
  transition-delay: 380ms;
}

.sec-01-nav .sec-01-nav__overlay.is-open .sec-01-nav__overlay-footer {
  opacity: 1;
}

.sec-01-nav .sec-01-nav__overlay-phone {
  color: var(--text-on-ink-dim);
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
}

/* Body scroll lock while the mobile overlay is open (state class set by js/sections/01-nav.js) */
body.sec-01-nav-lock {
  overflow: hidden;
}

/* --- Reduced motion: no slide/stagger, just fade --- */
html.reduced-motion .sec-01-nav .sec-01-nav__overlay-link,
html.reduced-motion .sec-01-nav .sec-01-nav__toggle-line,
html.reduced-motion .sec-01-nav .sec-01-nav__overlay {
  transition-duration: 1ms;
  transform: none;
}
html.reduced-motion .sec-01-nav .sec-01-nav__overlay.is-open .sec-01-nav__overlay-link {
  transition-delay: 0ms;
}

/* --- Breakpoint: mobile nav --- */
@media (max-width: 900px) {
  .sec-01-nav .sec-01-nav__links,
  .sec-01-nav .sec-01-nav__phone,
  .sec-01-nav .sec-01-nav__cta {
    display: none;
  }
  .sec-01-nav .sec-01-nav__toggle {
    display: flex;
  }
}

@media (max-width: 480px) {
  .sec-01-nav .sec-01-nav__overlay-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* --- Desktop dropdowns (Services / What We Treat) --- */
.sec-01-nav .sec-01-nav__item { position: relative; display: flex; align-items: center; }

.sec-01-nav .sec-01-nav__link--parent {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.sec-01-nav .sec-01-nav__caret {
  transition: transform 250ms var(--ease-out);
  opacity: 0.7;
}

.sec-01-nav .sec-01-nav__item:hover .sec-01-nav__caret,
.sec-01-nav .sec-01-nav__item:focus-within .sec-01-nav__caret {
  transform: rotate(180deg);
  opacity: 1;
}

.sec-01-nav .sec-01-nav__dropdown {
  position: absolute;
  top: 100%;
  left: -0.75rem;
  margin-top: 0.9rem;
  min-width: 230px;
  padding: 0.5rem;
  background: var(--ink-2);
  border: 1px solid hsl(0 0% 100% / 0.1);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-lift);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 220ms var(--ease-out), transform 220ms var(--ease-out), visibility 220ms;
  z-index: 5;
}

/* Invisible hover bridge across the gap between link and panel */
.sec-01-nav .sec-01-nav__dropdown::before {
  content: "";
  position: absolute;
  top: -0.95rem;
  left: 0;
  right: 0;
  height: 1rem;
}

.sec-01-nav .sec-01-nav__item:hover .sec-01-nav__dropdown,
.sec-01-nav .sec-01-nav__item:focus-within .sec-01-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sec-01-nav .sec-01-nav__dropdown-link {
  display: block;
  padding: 0.55rem 0.85rem;
  border-radius: 10px;
  color: var(--text-on-ink-dim);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 180ms var(--ease-out), color 180ms var(--ease-out);
}

.sec-01-nav .sec-01-nav__dropdown-link:hover,
.sec-01-nav .sec-01-nav__dropdown-link:focus-visible {
  background: hsl(0 0% 100% / 0.07);
  color: var(--text-on-ink);
}

.sec-01-nav .sec-01-nav__dropdown-link--all {
  margin-top: 0.3rem;
  border-top: 1px solid hsl(0 0% 100% / 0.1);
  border-radius: 0 0 10px 10px;
  color: var(--accent-light);
  font-family: var(--font-display);
  font-weight: 600;
}

html.reduced-motion .sec-01-nav .sec-01-nav__dropdown,
html.reduced-motion .sec-01-nav .sec-01-nav__caret { transition: none; }

/* --- Mobile overlay groups (expandable sublists) --- */
.sec-01-nav .sec-01-nav__overlay { overflow-y: auto; justify-content: flex-start; }
/* The header bar (z-index 210) paints over the top of the overlay. Pad the overlay
   by the bar's height so the first item (About Us) is never hidden under it when
   the menu is taller than the screen: small phones, or any phone once a sublist is
   expanded (2026-10-14 QA). */
.sec-01-nav .sec-01-nav__overlay { padding-top: calc(var(--nav-h) + 1.25rem); }
.sec-01-nav .sec-01-nav__overlay-links { margin-block: auto; }

.sec-01-nav .sec-01-nav__overlay-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.sec-01-nav .sec-01-nav__overlay-expand {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsl(0 0% 100% / 0.06);
  border: 1px solid hsl(0 0% 100% / 0.15);
  border-radius: 50%;
  color: var(--text-on-ink);
  cursor: pointer;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 420ms var(--ease-out), transform 420ms var(--ease-out),
    background-color 200ms var(--ease-out);
}

.sec-01-nav .sec-01-nav__overlay.is-open .sec-01-nav__overlay-expand {
  opacity: 1;
  transform: none;
  transition-delay: calc(var(--i, 0) * 70ms + 80ms), calc(var(--i, 0) * 70ms + 80ms), 0ms;
}

.sec-01-nav .sec-01-nav__overlay-expand svg {
  transition: transform 250ms var(--ease-out);
}

.sec-01-nav .sec-01-nav__overlay-group.is-expanded .sec-01-nav__overlay-expand svg {
  transform: rotate(180deg);
}

.sec-01-nav .sec-01-nav__overlay-sub {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 320ms var(--ease-out);
}

.sec-01-nav .sec-01-nav__overlay-group.is-expanded .sec-01-nav__overlay-sub {
  grid-template-rows: 1fr;
}

.sec-01-nav .sec-01-nav__overlay-sub-inner {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.sec-01-nav .sec-01-nav__overlay-sub-inner a {
  padding: 0.55rem 0 0.55rem 1.25rem;
  color: var(--text-on-ink-dim);
  font-size: 1.05rem;
  font-weight: 500;
  text-decoration: none;
  border-left: 2px solid hsl(0 0% 100% / 0.12);
  transition: color 200ms var(--ease-out), border-color 200ms var(--ease-out);
}

.sec-01-nav .sec-01-nav__overlay-sub-inner a:hover,
.sec-01-nav .sec-01-nav__overlay-sub-inner a:focus-visible {
  color: var(--text-on-ink);
  border-left-color: var(--accent);
}

html.reduced-motion .sec-01-nav .sec-01-nav__overlay-sub,
html.reduced-motion .sec-01-nav .sec-01-nav__overlay-expand { transition: none; }

/* ============================================================
   LIGHT NAV BAR (client build)
   The brand mark is a transparent gold->purple lockup designed for a
   light background; on the original dark bar its purple half blended in.
   This recolors the top bar to a warm near-white so the mark reads
   cleanly with no chip. The full-screen mobile overlay stays dark.
   ============================================================ */
.sec-01-nav .sec-01-nav__bar {
  background: hsl(40 30% 98% / 0.9);
  border-bottom: 1px solid hsl(260 18% 20% / 0.1);
}
html.is-scrolled .sec-01-nav .sec-01-nav__bar {
  background: hsl(40 33% 99% / 0.97);
  border-bottom-color: hsl(260 18% 20% / 0.12);
  box-shadow: var(--shadow-soft);
}

/* Links, phone, toggle recolored for the light bar */
.sec-01-nav .sec-01-nav__link { color: var(--text-on-bone-dim); }
.sec-01-nav .sec-01-nav__link:hover,
.sec-01-nav .sec-01-nav__link:focus-visible { color: var(--text-on-bone); }
.sec-01-nav .sec-01-nav__phone { color: var(--text-on-bone-dim); }
.sec-01-nav .sec-01-nav__phone:hover { color: var(--text-on-bone); }
.sec-01-nav .sec-01-nav__toggle-line { background: var(--text-on-bone); }

/* Desktop dropdown panels on the light theme */
.sec-01-nav .sec-01-nav__dropdown {
  background: var(--white);
  border-color: hsl(260 18% 20% / 0.12);
}
.sec-01-nav .sec-01-nav__dropdown-link { color: var(--text-on-bone-dim); }
.sec-01-nav .sec-01-nav__dropdown-link:hover,
.sec-01-nav .sec-01-nav__dropdown-link:focus-visible {
  background: hsl(260 20% 12% / 0.06);
  color: var(--text-on-bone);
}
.sec-01-nav .sec-01-nav__dropdown-link--all {
  color: var(--accent);
  border-top-color: hsl(260 18% 20% / 0.12);
}