/* ============================================================
   ATLAS HEALING — css/nav.css
   Navigation: top bar, logo, links, mobile menu
   ============================================================ */


/* ============================================================
   1. NAV WRAPPER
   ============================================================ */
.nav {
  position: fixed;
  top: 38px; left: 0; right: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px var(--section-pad-h);
  background: rgba(246, 245, 255, 0.72);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(155, 142, 196, 0.12);
  transition:
    padding     var(--transition),
    background  var(--transition),
    box-shadow  var(--transition);
}

/* Scrolled state — nav shrinks and deepens */
.nav.scrolled {
  padding: 15px var(--section-pad-h);
  background: rgba(246, 245, 255, 0.92);
  box-shadow: 0 4px 28px rgba(155, 142, 196, 0.1);
}

/* Dark-page variant (used on booking.html dark hero) */
.nav.nav-dark {
  background: rgba(30, 28, 48, 0.72);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}
.nav.nav-dark.scrolled {
  background: rgba(30, 28, 48, 0.95);
}
.nav.nav-dark .nav-link      { color: rgba(255,255,255,0.65); }
.nav.nav-dark .nav-link:hover { color: var(--color-white); }
.nav.nav-dark .nav-link::after { background: var(--color-lavender-lt); }
.nav.nav-dark .hamburger span { background: var(--color-white); }


/* ============================================================
   2. LOGO
   ============================================================ */
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--duration-fast);
  flex-shrink: 0;
}

.nav-logo-img {
  display: block;
  height: 85px;
  width: auto;
}

.nav-logo:hover { opacity: 0.8; }


/* ============================================================
   3. DESKTOP LINKS
   ============================================================ */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 38px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-ink-mid);
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
  transition: color var(--duration-fast);
  white-space: nowrap;
}

/* Animated underline */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0;
  height: 1px;
  background: var(--color-lavender);
  transition: width var(--duration-base) var(--ease-smooth);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-lavender);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}


/* ============================================================
   4. CTA BUTTON (Book a Session)
   ============================================================ */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.73rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-white) !important;
  text-decoration: none;
  background: var(--color-lavender);
  padding: 11px 26px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition:
    background var(--duration-fast),
    transform  var(--duration-fast),
    box-shadow var(--duration-fast);
  box-shadow: 0 6px 22px rgba(155, 142, 196, 0.32);
}

/* Override underline rule from .nav-link */
.nav-cta::after { display: none !important; }

.nav-cta:hover {
  background: var(--color-ink);
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(38, 37, 58, 0.22);
}

/* Small dot accent */
.nav-cta-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: rgba(255,255,255,0.6);
  flex-shrink: 0;
}


/* ============================================================
   5. AUTH / USER NAV ELEMENTS
   ============================================================ */

/* Desktop: Sign In link (shown when not signed in) */
.nav-auth-signin {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-ink-mid);
  text-decoration: none;
  white-space: nowrap;
  margin-left: var(--space-3);
  transition: color var(--duration-fast);
}
.nav-auth-signin:hover { color: var(--color-lavender); }

/* Dark nav variant */
.nav.nav-dark .nav-auth-signin { color: rgba(255,255,255,0.65); }
.nav.nav-dark .nav-auth-signin:hover { color: var(--color-white); }

/* User avatar button */
.nav-user-wrap {
  position: relative;
  margin-left: var(--space-3);
}
.nav-user-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
}
.nav-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-lavender);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: center;
  text-transform: uppercase;
  transition: background var(--duration-fast), transform var(--duration-fast);
}
.nav-user-btn:hover .nav-user-avatar {
  background: var(--color-lavender-dk);
  transform: scale(1.06);
}

/* Dropdown panel */
.nav-user-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 158px;
  background: var(--color-white);
  border: 1px solid rgba(155,142,196,0.2);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 36px rgba(38,37,58,0.12);
  padding: 8px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 520;
}
.nav-user-wrap.open .nav-user-dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.nav-user-dropdown-item {
  display: block;
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--color-ink-mid);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  border-radius: calc(var(--radius-md) - 4px);
  white-space: nowrap;
  transition: background var(--duration-fast), color var(--duration-fast);
}
.nav-user-dropdown-item:hover {
  background: rgba(155,142,196,0.1);
  color: var(--color-lavender-dk);
}

/* Mobile: drawer sign-out button styled like drawer nav-link */
.drawer-signout-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  padding-bottom: 0;
  transition: color 0.3s;
}
.drawer-signout-btn:hover { color: var(--color-lavender); }

/* Hide desktop nav-auth on mobile (drawer handles it) */
@media (max-width: 900px) {
  .nav-auth { display: none; }
}


/* ============================================================
   6. HAMBURGER (mobile toggle)
   ============================================================ */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 510;
  position: relative;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-ink);
  border-radius: 2px;
  transform-origin: center;
  transition:
    transform  0.35s var(--ease-smooth),
    opacity    0.25s ease,
    width      0.3s ease;
}

/* Animated X state */
.hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  width: 0;
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}


/* ============================================================
   6. MOBILE MENU DRAWER
   ============================================================ */
.nav-drawer {
  display: none;                   /* hidden on desktop */
  position: fixed;
  inset: 0;
  z-index: 499;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-10);
  background: rgba(246, 245, 255, 0.97);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.nav-drawer.open {
  opacity: 1;
  pointer-events: all;
}

/* Mobile nav links */
.nav-drawer .nav-link {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--color-ink);
  padding-bottom: 0;
  transition: color 0.3s;
}
.nav-drawer .nav-link::after {
  display: none;
}
.nav-drawer .nav-link:hover {
  color: var(--color-lavender);
}

.nav-drawer .nav-cta {
  margin-top: var(--space-4);
  padding: 14px 36px;
  font-size: 0.78rem;
}

/* Decorative line between drawer items */
.nav-drawer-divider {
  width: 1px;
  height: 28px;
  background: var(--color-lavender-lt);
  opacity: 0.5;
}

/* Social row inside drawer */
.nav-drawer-social {
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-6);
}
.nav-drawer-social a {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-lt);
  text-decoration: none;
  transition: color 0.25s;
}
.nav-drawer-social a:hover { color: var(--color-lavender); }


/* ============================================================
   7. PAGE-OFFSET HELPER
   Adds top padding to pages so content clears the fixed nav.
   Apply class "nav-offset" to the first section of each page.
   ============================================================ */
.nav-offset {
  padding-top: calc(var(--section-pad-v) + 88px);
}


/* ============================================================
   8. RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {

  /* Hide desktop menu links */
  .nav-menu {
    display: none;
  }

  /* Show hamburger */
  .hamburger {
    display: flex;
  }

  /* Show drawer (managed by JS .open class) */
  .nav-drawer {
    display: flex;
  }
}

@media (max-width: 480px) {
  .nav {
    padding: 20px var(--section-pad-h);
  }
  .nav.scrolled {
    padding: 14px var(--section-pad-h);
  }
  .nav-logo-img {
    height: 72px;
  }
}


/* ============================================================
   LANGUAGE SWITCHER
   Three pill buttons: EN · UA · RU
   Sits between nav-auth and the hamburger in desktop nav,
   and at the bottom of the mobile drawer.
   ============================================================ */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 1px;
  margin-right: var(--space-3);
  background: rgba(155, 142, 196, 0.08);
  border: 1px solid rgba(155, 142, 196, 0.18);
  border-radius: 20px;
  padding: 3px;
}

.lang-btn {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-lt);
  background: none;
  border: none;
  border-radius: 16px;
  padding: 5px 9px;
  cursor: pointer;
  transition:
    color      0.2s ease,
    background 0.2s ease;
  line-height: 1;
  white-space: nowrap;
}

.lang-btn:hover {
  color: var(--color-lavender);
  background: rgba(155, 142, 196, 0.12);
}

.lang-btn.active {
  color: var(--color-white);
  background: var(--color-lavender);
  font-weight: 600;
}

/* Drawer variant — larger, full-width row */
.drawer-lang-switcher {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid rgba(155, 142, 196, 0.12);
  margin-top: var(--space-2);
}

.drawer-lang-switcher .lang-btn {
  font-size: 0.72rem;
  padding: 7px 14px;
  border: 1px solid rgba(155, 142, 196, 0.22);
  background: rgba(155, 142, 196, 0.06);
  color: var(--color-ink-mid);
}

.drawer-lang-switcher .lang-btn:hover {
  border-color: var(--color-lavender);
  color: var(--color-lavender);
  background: rgba(155, 142, 196, 0.1);
}

.drawer-lang-switcher .lang-btn.active {
  background: var(--color-lavender);
  border-color: var(--color-lavender);
  color: var(--color-white);
}

/* Hide desktop switcher on mobile (drawer one takes over) */
@media (max-width: 900px) {
  .nav > .lang-switcher { display: none; }
}