/* ============================================================
   NuvaMed — unified site navigation
   Single implementation for every landing page. Self-contained:
   pages that do not load styles.css get their tokens from the
   @property/:root fallbacks below, so this file can be included
   alone.
   ============================================================ */

/* Fallback tokens. styles.css defines these first on :root; when it
   is absent these take effect, when present the cascade keeps the
   real ones because they are identical values. */
:root {
  --nv-nav-h: 64px;
  --nv-nav-h-condensed: 54px;
  --nv-nav-ink: #2D3E52;
  --nv-nav-ink-dim: #6B7D8E;
  --nv-nav-ink-strong: #0F1724;
  --nv-nav-accent: #095d7e;
  --nv-nav-accent-2: #14967f;
  --nv-nav-hairline: #EAF0F4;
  --nv-nav-surface: 250, 251, 252;
  --nv-nav-gutter: clamp(20px, 5vw, 72px);
  --nv-nav-max: 1240px;
  --nv-nav-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --nv-nav-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- shell ----------
   `fixed`, not `sticky`: styles.css sets `html { overflow-x: clip }`,
   which destroys the sticky containing block and lets the bar scroll
   away. Fixed is immune, at the cost of needing the spacer below. */
.nv-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 var(--nv-nav-gutter);
  background: rgba(var(--nv-nav-surface), 0.72);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid transparent;
  transition:
    background 280ms ease,
    border-color 280ms ease,
    box-shadow 280ms ease;
}

/* Scroll-driven condense. Height and logo scale interpolate from
   --nv-scroll (0..1), written by nav.js from a rAF-throttled scroll
   handler; it degrades to the resting state when JS is absent. */
.nv-nav-inner {
  max-width: var(--nv-nav-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
  height: calc(
    var(--nv-nav-h) -
    (var(--nv-nav-h) - var(--nv-nav-h-condensed)) * var(--nv-scroll, 0)
  );
  transition: height 280ms var(--nv-nav-ease);
}

.nv-nav.is-scrolled {
  background: rgba(var(--nv-nav-surface), 0.92);
  border-bottom-color: var(--nv-nav-hairline);
  box-shadow: 0 1px 3px rgba(9, 93, 126, 0.06), 0 1px 2px rgba(9, 93, 126, 0.04);
}

/* Hide-on-scroll-down, reveal-on-scroll-up. Only engages past the
   fold so the nav never flickers at the top of a short page. */
.nv-nav.is-tucked {
  transform: translate3d(0, -100%, 0);
}
.nv-nav {
  transform: translate3d(0, 0, 0);
  transition:
    transform 420ms var(--nv-nav-ease),
    background 280ms ease,
    border-color 280ms ease,
    box-shadow 280ms ease;
  will-change: transform;
}

/* Reserves the space a fixed bar no longer occupies in flow. Sits
   immediately after the nav in the markup. */
.nv-nav-spacer {
  height: var(--nv-nav-h);
  flex: none;
}

/* ---------- logo ---------- */
.nv-nav-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-right: auto;
  font-size: 16px;
  font-weight: 700;
  color: var(--nv-nav-accent);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nv-nav-logo svg {
  width: calc(26px - 3px * var(--nv-scroll, 0));
  height: calc(26px - 3px * var(--nv-scroll, 0));
  flex: none;
  transition: transform 480ms var(--nv-nav-spring);
}
.nv-nav-logo:hover svg {
  transform: rotate(-8deg) scale(1.05);
}
.nv-nav-logo em {
  font-style: normal;
  color: var(--nv-nav-accent-2);
}

/* ---------- desktop links ---------- */
.nv-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  position: relative;
}
.nv-nav-links a {
  position: relative;
  padding: 8px 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--nv-nav-ink-dim);
  white-space: nowrap;
  text-decoration: none;
  transition: color 280ms ease;
}
.nv-nav-links a:hover,
.nv-nav-links a:focus-visible {
  color: var(--nv-nav-ink-strong);
}
.nv-nav-links a[aria-current="true"] {
  color: var(--nv-nav-ink-strong);
}

/* The travelling indicator. One element for the whole row; nav.js
   moves it with a spring so it slides between links rather than
   fading in per-link. Falls back to a per-link underline when JS is
   off (see .nv-no-js below). */
.nv-nav-indicator {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 1.5px;
  width: var(--nv-ind-w, 0px);
  border-radius: 2px;
  background: linear-gradient(90deg, var(--nv-nav-accent), var(--nv-nav-accent-2));
  transform: translate3d(var(--nv-ind-x, 0), 0, 0) scaleX(var(--nv-ind-s, 1));
  transform-origin: left center;
  opacity: var(--nv-ind-o, 0);
  transition:
    transform 520ms var(--nv-nav-spring),
    width 520ms var(--nv-nav-spring),
    opacity 200ms ease;
  pointer-events: none;
}

/* ---------- tail / CTAs ---------- */
.nv-nav-tail {
  display: flex;
  align-items: center;
  gap: 20px;
}
.nv-nav-tail .nv-nav-quiet {
  font-size: 13px;
  font-weight: 500;
  color: var(--nv-nav-ink-dim);
  text-decoration: none;
  white-space: nowrap;
  transition: color 280ms ease;
}
.nv-nav-tail .nv-nav-quiet:hover,
.nv-nav-tail .nv-nav-quiet:focus-visible {
  color: var(--nv-nav-ink-strong);
}

.nv-nav-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
  background: linear-gradient(135deg, var(--nv-nav-accent), var(--nv-nav-accent-2));
  box-shadow: 0 1px 2px rgba(9, 93, 126, 0.16);
  overflow: hidden;
  /* Magnetic offset written by nav.js on pointer move. */
  transform: translate3d(var(--nv-mag-x, 0px), var(--nv-mag-y, 0px), 0);
  transition:
    transform 320ms var(--nv-nav-spring),
    box-shadow 280ms ease;
}
.nv-nav-cta:hover {
  box-shadow: 0 6px 18px rgba(9, 93, 126, 0.22);
}
/* Sheen sweep on hover — pure CSS, no JS cost. */
.nv-nav-cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 20%,
    rgba(255, 255, 255, 0.28) 50%,
    transparent 80%
  );
  transform: translateX(-100%);
  transition: transform 720ms var(--nv-nav-ease);
}
.nv-nav-cta:hover::after {
  transform: translateX(100%);
}

/* ---------- hamburger ---------- */
.nv-nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--nv-nav-ink);
  cursor: pointer;
  position: relative;
}
.nv-nav-burger span {
  position: absolute;
  left: 11px;
  width: 18px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transition:
    transform 420ms var(--nv-nav-spring),
    opacity 160ms ease;
}
.nv-nav-burger span:nth-child(1) { top: 14px; }
.nv-nav-burger span:nth-child(2) { top: 19.25px; }
.nv-nav-burger span:nth-child(3) { top: 24.5px; }
.nv-nav-burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(5.25px) rotate(45deg);
}
.nv-nav-burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.4);
}
.nv-nav-burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-5.25px) rotate(-45deg);
}

/* ---------- mobile drawer ----------
   Animatable: visibility + clip-path + opacity, never display, so
   the open/close transition can actually run. */
.nv-nav-drawer {
  position: fixed;
  /* Must track the nav's *live* height, not the resting token: opening
     the drawer while the bar is condensed otherwise leaves a gap
     showing page content between the two. Same interpolation as
     .nv-nav-inner. */
  inset: calc(
      var(--nv-nav-h) -
      (var(--nv-nav-h) - var(--nv-nav-h-condensed)) * var(--nv-scroll, 0)
    ) 0 auto 0;
  display: flex;
  flex-direction: column;
  padding: 8px var(--nv-nav-gutter) 28px;
  background: rgba(var(--nv-nav-surface), 0.97);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid var(--nv-nav-hairline);
  z-index: 99;
  visibility: hidden;
  opacity: 0;
  clip-path: inset(0 0 100% 0);
  transition:
    clip-path 520ms var(--nv-nav-ease),
    opacity 240ms ease,
    visibility 0s linear 520ms;
}
.nv-nav-drawer.is-open {
  visibility: visible;
  opacity: 1;
  clip-path: inset(0 0 0 0);
  transition:
    clip-path 520ms var(--nv-nav-ease),
    opacity 200ms ease,
    visibility 0s;
}

/* Staggered reveal of drawer rows. --i is set inline per row. */
.nv-nav-drawer a {
  padding: 14px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--nv-nav-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--nv-nav-hairline);
  opacity: 0;
  transform: translateY(-8px);
  transition:
    opacity 320ms ease,
    transform 420ms var(--nv-nav-ease);
}
.nv-nav-drawer.is-open a {
  opacity: 1;
  transform: translateY(0);
  transition-delay: calc(60ms + var(--i, 0) * 38ms);
}
.nv-nav-drawer .nv-nav-cta {
  margin-top: 18px;
  justify-content: center;
  border-bottom: 0;
  padding: 13px 16px;
  font-size: 15px;
}

/* Scrim behind the drawer. */
.nv-nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 98;
  background: rgba(15, 23, 36, 0.28);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 320ms ease, visibility 0s linear 320ms;
}
.nv-nav-scrim.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 320ms ease, visibility 0s;
}

/* Body lock while the drawer is open. */
body.nv-nav-locked {
  overflow: hidden;
}

/* ---------- scroll progress hairline ---------- */
.nv-nav-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 100%;
  transform: scaleX(var(--nv-progress, 0));
  transform-origin: left center;
  background: linear-gradient(90deg, var(--nv-nav-accent), var(--nv-nav-accent-2));
  opacity: 0;
  transition: opacity 280ms ease;
  pointer-events: none;
}
.nv-nav.is-scrolled .nv-nav-progress {
  opacity: 1;
}

/* ---------- skip link ---------- */
/* !important throughout: page-level <style> blocks are inlined after
   this file on most pages and would otherwise win the cascade, which
   either strands the link off-screen on focus or leaves it visible. */
.nv-skip {
  position: absolute !important;
  left: -9999px !important;
  top: 8px !important;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 8px;
  background: #fff;
  color: var(--nv-nav-accent);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 10px 15px -3px rgba(9, 93, 126, 0.12);
}
.nv-skip:focus,
.nv-skip:focus-visible {
  left: var(--nv-nav-gutter) !important;
  outline: 2px solid var(--nv-nav-accent);
  outline-offset: 2px;
}

/* ---------- focus visibility ---------- */
.nv-nav a:focus-visible,
.nv-nav button:focus-visible {
  outline: 2px solid var(--nv-nav-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .nv-nav-links { display: none; }
  .nv-nav-burger { display: block; }
}
@media (max-width: 560px) {
  .nv-nav-tail .nv-nav-quiet { display: none; }
  .nv-nav-tail > .nv-nav-cta { display: none; }
}

/* ---------- no-JS ----------
   The drawer becomes a static stacked list and the nav stops being
   sticky, so every link is reachable without scripting. */
.nv-no-js .nv-nav-burger { display: none; }
.nv-no-js .nv-nav-indicator { display: none; }
.nv-no-js .nv-nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--nv-nav-accent);
  transform: scaleX(0);
  transition: transform 280ms var(--nv-nav-ease);
}
.nv-no-js .nv-nav-links a:hover::after { transform: scaleX(1); }
@media (max-width: 1000px) {
  .nv-no-js .nv-nav { position: static; }
  .nv-no-js .nv-nav-spacer { display: none; }
  .nv-no-js .nv-nav-drawer {
    position: static;
    inset: auto;
    visibility: visible;
    opacity: 1;
    clip-path: none;
    padding-top: 0;
    background: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .nv-no-js .nv-nav-drawer a { opacity: 1; transform: none; }
  .nv-no-js .nv-nav-scrim { display: none; }
}

/* ---------- reduced motion ----------
   styles.css carries a global *-with-!important kill switch, but this
   file must also stand alone on pages that do not load it. Motion is
   removed; state changes remain instant and fully legible. */
@media (prefers-reduced-motion: reduce) {
  .nv-nav,
  .nv-nav-inner,
  .nv-nav-logo svg,
  .nv-nav-indicator,
  .nv-nav-cta,
  .nv-nav-cta::after,
  .nv-nav-burger span,
  .nv-nav-drawer,
  .nv-nav-drawer a,
  .nv-nav-scrim,
  .nv-nav-progress {
    transition: none !important;
    animation: none !important;
  }
  .nv-nav.is-tucked { transform: none; }
  .nv-nav-cta { transform: none; }
  .nv-nav-drawer a { transition-delay: 0s !important; }
  .nv-nav-inner { height: var(--nv-nav-h); }
  .nv-nav-logo svg { width: 26px; height: 26px; }
}

/* ---------- high contrast ---------- */
@media (prefers-contrast: more) {
  .nv-nav { background: rgba(var(--nv-nav-surface), 1); }
  .nv-nav-links a,
  .nv-nav-tail .nv-nav-quiet { color: var(--nv-nav-ink); }
  .nv-nav-drawer { background: #fff; }
}