/* ============================================================
   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(var(--accent-h) 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(var(--accent-h) 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, 2vw, 1.5rem);
  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;
  /* Never let the flex row's shrink algorithm squash this: images have no
     min-content floor like the nowrap text siblings do, so without this
     the logo silently absorbs the whole overflow and renders squished
     into an illegible sliver instead of the nav visibly overflowing. */
  flex-shrink: 0;
}

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

/* White wordmark image sits on the dark ink-glass bar; height tracks the bar
   and eases down when the nav condenses on scroll. */
.sec-01-nav .sec-01-nav__logo-img {
  display: block;
  height: clamp(26px, 2.4vw, 34px);
  width: auto;
  transition: height 400ms var(--ease-out);
}

html.is-scrolled .sec-01-nav .sec-01-nav__logo-img {
  height: clamp(23px, 2.1vw, 30px);
}

/* --- Center links --- */
.sec-01-nav .sec-01-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.4vw, 1.5rem);
}

.sec-01-nav .sec-01-nav__link {
  position: relative;
  color: var(--text-on-ink-dim);
  font-weight: 500;
  font-size: 0.9rem;
  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;
}

/* --- Mobile menu checkbox (real control; no-JS toggle) ---
   Visually hidden (sr-only technique, not display:none) so it stays
   focusable/keyboard-operable via native checkbox behavior (Tab + Space),
   while the .sec-01-nav__toggle <label> below is what's actually seen and
   is a pure proxy (aria-hidden) for it. Hidden entirely outside the mobile
   breakpoint, same as the toggle it drives. */
.sec-01-nav .sec-01-nav__check {
  display: none;
}
@media (max-width: 1360px) {
  .sec-01-nav .sec-01-nav__check {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
    display: block;
  }
}
.sec-01-nav .sec-01-nav__check:focus-visible ~ .sec-01-nav__bar .sec-01-nav__toggle {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --- Hamburger toggle (mobile) --- */
.sec-01-nav .sec-01-nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  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__check:checked ~ .sec-01-nav__bar .sec-01-nav__toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.sec-01-nav .sec-01-nav__check:checked ~ .sec-01-nav__bar .sec-01-nav__toggle-line:nth-child(2) {
  opacity: 0;
}
.sec-01-nav .sec-01-nav__check:checked ~ .sec-01-nav__bar .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__check:checked ~ .sec-01-nav__overlay {
  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(1.125rem, 0.75rem + 2.5vw, 1.875rem);
  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__check:checked ~ .sec-01-nav__overlay .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__check:checked ~ .sec-01-nav__overlay .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__check:checked ~ .sec-01-nav__overlay .sec-01-nav__overlay-link {
  transition-delay: 0ms;
}

/* --- Breakpoint: mobile nav ---
   Raised from 900 to 1360: six top-level links (adding Performance
   Training + Basketball Academy) plus the phone number and CTA no
   longer fit the 1200px capped container below ~1330px — the row
   was overflowing and, since flex-shrink:0 now protects the logo
   from absorbing it, the CTA button was clipped off-screen instead. */
@media (max-width: 1360px) {
  .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: hsl(var(--accent-h) 70% 62%);
  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;
  /* keep the first item clear of the fixed header bar when a sublist is open */
  padding-top: calc(var(--nav-h) + 1rem);
}
.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__check:checked ~ .sec-01-nav__overlay .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: 0.875rem;
  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; }