/* ══════════════════════════════════════
   NAV
   ══════════════════════════════════════ */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;

  z-index: 1000;

  padding: 18px 6vw;

  display: flex;
  align-items: center;
  justify-content: space-between;

  background: rgba(255, 255, 255, 0.88);

  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);

  border-bottom: 1px solid rgba(226, 232, 240, 0.6);

  transition:
    padding 0.3s ease,
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}


/* ══════════════════════════════════════
   SCROLLED NAV
   ══════════════════════════════════════ */

.site-nav.is-scrolled {
  padding-top: 13px;
  padding-bottom: 13px;

  background: rgba(255, 255, 255, 0.94);

  box-shadow:
    0 4px 24px rgba(15, 23, 42, 0.05);
}


/* ══════════════════════════════════════
   NAV OPEN STATE
   ══════════════════════════════════════ */

/*
   The navbar itself moves above the glass menu.

   Its background becomes transparent so the glass
   panel can occupy the entire screen.
*/

/* ══════════════════════════════════════
   OPEN MENU — FLOAT CONTROLS ABOVE GLASS
   ══════════════════════════════════════ */

/*
   The navbar itself becomes transparent while
   the logo and toggle float independently above
   the glass menu.
*/

.site-nav.menu-open {
  z-index: 1200;

  background: transparent;

  backdrop-filter: none;
  -webkit-backdrop-filter: none;

  border-bottom-color: transparent;

  box-shadow: none;
}


/* ══════════════════════════════════════
   FLOATING LOGO
   ══════════════════════════════════════ */

.site-nav.menu-open .nav-logo {
  position: fixed;

  top: 18px;
  left: 6vw;

  z-index: 1201;

  /*
     Makes the logo feel like it has risen
     above the frosted surface.
  */
  transform:
    translate3d(0, -1px, 0)
    scale(1.025);

  transform-origin: left center;

  filter:
    drop-shadow(
      0 4px 10px rgba(15, 23, 42, 0.10)
    );

  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.45s ease;
}


/*
   Tiny highlight behind the logo.

   It gives the logo a subtle "floating glass"
   separation from the panel underneath.
*/

.site-nav.menu-open .nav-logo::before {
  content: "";

  position: absolute;

  inset: -7px -10px;

  z-index: -1;

  border-radius: 12px;

  background:
    rgba(255, 255, 255, 0.16);

  box-shadow:
    0 4px 18px rgba(15, 23, 42, 0.04);

  opacity: 1;

  transition:
    opacity 0.35s ease;
}


/* ══════════════════════════════════════
   FLOATING HAMBURGER / CLOSE BUTTON
   ══════════════════════════════════════ */

.site-nav.menu-open .nav-menu-toggle {
  position: fixed;

  top: 18px;
  right: 6vw;

  z-index: 1201;

  /*
     Frosted glass button.
  */
  background:
    rgba(255, 255, 255, 0.48);

  border:
    1px solid rgba(255, 255, 255, 0.82);

  /*
     Layered shadow makes the button look
     physically separated from the panel.
  */
  box-shadow:
    0 4px 10px rgba(15, 23, 42, 0.05),
    0 10px 30px rgba(15, 23, 42, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.65);

  backdrop-filter:
    blur(12px)
    saturate(140%);

  -webkit-backdrop-filter:
    blur(12px)
    saturate(140%);

  /*
     Slight lift + scale.
  */
  transform:
    translate3d(0, -1px, 0)
    scale(1.025);

  transform-origin: center;

  filter:
    drop-shadow(
      0 3px 8px rgba(15, 23, 42, 0.06)
    );

  transition:
    background 0.3s ease,
    border-color 0.3s ease,
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.45s ease,
    filter 0.45s ease;
}


/*
   Hover while the menu is open.

   Since it's now a close button, give it a
   slightly more deliberate interaction.
*/

.site-nav.menu-open .nav-menu-toggle:hover {
  background:
    rgba(255, 255, 255, 0.68);

  border-color:
    rgba(255, 255, 255, 0.95);

  transform:
    translate3d(0, -2px, 0)
    scale(1.045);

  box-shadow:
    0 6px 14px rgba(15, 23, 42, 0.06),
    0 14px 34px rgba(15, 23, 42, 0.10),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}


/*
   Active state keeps the interaction tactile.
*/

.site-nav.menu-open .nav-menu-toggle:active {
  transform:
    translate3d(0, 0, 0)
    scale(0.96);
}


/* ══════════════════════════════════════
   X TRANSFORMATION
   ══════════════════════════════════════ */

.site-nav.menu-open
.nav-menu-toggle.is-open span:nth-child(1) {
  transform:
    translate3d(0, 6.5px, 0)
    rotate(45deg);
}

.site-nav.menu-open
.nav-menu-toggle.is-open span:nth-child(2) {
  width: 0;

  opacity: 0;
}

.site-nav.menu-open
.nav-menu-toggle.is-open span:nth-child(3) {
  transform:
    translate3d(0, -6.5px, 0)
    rotate(-45deg);
}


/* ══════════════════════════════════════
   MOBILE POSITIONING
   ══════════════════════════════════════ */

@media (max-width: 768px) {

  .site-nav.menu-open .nav-logo {
    top: 14px;
    left: 5vw;
  }

  .site-nav.menu-open .nav-menu-toggle {
    top: 14px;
    right: 5vw;
  }
}


@media (max-width: 480px) {

  .site-nav.menu-open .nav-logo {
    top: 13px;
    left: 4.5vw;
  }

  .site-nav.menu-open .nav-menu-toggle {
    top: 13px;
    right: 4.5vw;
  }
}



/* ══════════════════════════════════════
   LOGO
   ══════════════════════════════════════ */

.nav-logo {
  display: flex;
  align-items: center;

  text-decoration: none;

  flex-shrink: 0;

  transition:
    transform 0.25s ease,
    opacity 0.25s ease;
}

.nav-logo:hover {
  transform: translateY(-1px);
}

.nav-logo img {
  display: block;

  width: auto;
  height: 36px;
  max-width: 100%;
}


/*
   When the menu opens, the logo leaves the navbar
   and becomes a fixed element sitting above the
   glass panel.
*/

.site-nav.menu-open .nav-logo {
  position: fixed;

  top: 20px;
  left: 6vw;

  z-index: 1201;

  transform: translateY(0);
}


/* ══════════════════════════════════════
   DESKTOP NAV
   ══════════════════════════════════════ */

.nav-links {
  display: flex;
  align-items: center;

  gap: 32px;

  margin: 0;
  padding: 0;

  list-style: none;
}

.nav-links a {
  position: relative;

  display: inline-flex;
  align-items: center;

  font-size: 0.875rem;
  line-height: 1.2;

  color: var(--muted);

  text-decoration: none;
  font-weight: 400;

  white-space: nowrap;

  transition:
    color 0.2s ease,
    transform 0.2s ease;
}


/* Underline animation */

.nav-links a:not(.nav-cta)::after {
  content: "";

  position: absolute;

  left: 0;
  bottom: -6px;

  width: 100%;
  height: 1px;

  background: var(--navy);

  transform: scaleX(0);
  transform-origin: right;

  transition:
    transform 0.25s ease;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--navy);
}

.nav-links a:not(.nav-cta):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}


/* ══════════════════════════════════════
   DESKTOP CTA
   ══════════════════════════════════════ */

.nav-cta {
  background: var(--navy);
  color: white !important;

  padding: 9px 20px;

  border-radius: 7px;

  font-weight: 500 !important;
  font-size: 0.875rem !important;

  transition:
    background 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease !important;
}

.nav-cta:hover {
  background: var(--navy-dk) !important;
  color: white !important;

  transform: translateY(-2px);

  box-shadow:
    0 6px 16px rgba(45, 57, 103, 0.18);
}


/* ══════════════════════════════════════
   MOBILE MENU TOGGLE
   ══════════════════════════════════════ */

.nav-menu-toggle {
  display: none;

  width: 42px;
  height: 42px;

  padding: 0;

  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 9px;

  background: rgba(255, 255, 255, 0.75);

  align-items: center;
  justify-content: center;
  flex-direction: column;

  gap: 5px;

  cursor: pointer;

  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.nav-menu-toggle:hover {
  background: white;

  border-color:
    rgba(203, 213, 225, 1);

  transform: translateY(-1px);
}

.nav-menu-toggle:active {
  transform: scale(0.95);
}

.nav-menu-toggle span {
  display: block;

  width: 18px;
  height: 1.5px;

  background: var(--navy);

  border-radius: 2px;

  transition:
    transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.2s ease,
    width 0.2s ease;
}


/* ══════════════════════════════════════
   MOBILE TOGGLE OPEN STATE
   ══════════════════════════════════════ */

/*
   The button becomes fixed and sits directly
   above the glass panel.
*/

.site-nav.menu-open .nav-menu-toggle {
  position: fixed;

  top: 18px;
  right: 6vw;

  z-index: 1201;

  background: rgba(255, 255, 255, 0.55);

  border-color:
    rgba(255, 255, 255, 0.8);

  box-shadow:
    0 4px 18px rgba(15, 23, 42, 0.08);
}


/*
   Hamburger → X
*/

.nav-menu-toggle.is-open span:nth-child(1) {
  transform:
    translateY(6.5px)
    rotate(45deg);
}

.nav-menu-toggle.is-open span:nth-child(2) {
  width: 0;

  opacity: 0;
}

.nav-menu-toggle.is-open span:nth-child(3) {
  transform:
    translateY(-6.5px)
    rotate(-45deg);
}


/* ══════════════════════════════════════
   MOBILE NAV WRAPPER
   ══════════════════════════════════════ */

.mobile-nav-wrapper {
  position: fixed;
  inset: 0;

  z-index: 1100;

  visibility: hidden;

  pointer-events: none;
}

.mobile-nav-wrapper.is-open {
  visibility: visible;

  pointer-events: auto;
}


/*
   During closing we intentionally keep the wrapper
   visible so the reverse animation can play.
*/

.mobile-nav-wrapper.is-closing {
  visibility: visible;

  pointer-events: none;
}


/* ══════════════════════════════════════
   GLASS OVERLAY
   ══════════════════════════════════════ */

.mobile-nav-overlay {
  position: absolute;
  inset: 0;

  background:
    radial-gradient(
      circle at 80% 10%,
      rgba(181, 89, 161, 0.12),
      transparent 35%
    ),
    rgba(15, 23, 42, 0.38);

  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);

  opacity: 0;

  transition:
    opacity 0.45s ease,
    backdrop-filter 0.45s ease;
}

.mobile-nav-wrapper.is-open .mobile-nav-overlay {
  opacity: 1;

  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.mobile-nav-wrapper.is-closing .mobile-nav-overlay {
  opacity: 0;

  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}


/* ══════════════════════════════════════
   FULL-WIDTH GLASS PANEL
   ══════════════════════════════════════ */

.mobile-nav {
  position: absolute;

  top: 0;
  left: 0;
  right: 0;

  width: 100%;

  min-height: min(100px, 100dvh);

  padding:
    11px
    6vw
    42px;

  background:
    linear-gradient(
      135deg,
      rgba(255, 255, 255, 0.82),
      rgba(248, 250, 252, 0.68)
    );

  backdrop-filter:
    blur(28px)
    saturate(130%);

  -webkit-backdrop-filter:
    blur(28px)
    saturate(130%);

  border-bottom:
    1px solid rgba(255, 255, 255, 0.75);

  box-shadow:
    0 20px 60px rgba(15, 23, 42, 0.14),
    inset 0 -1px 0 rgba(255, 255, 255, 0.5);

  /*
     OPEN STATE:
     starts above viewport.
  */

  transform:
    translateY(-105%)
    scale(0.98);

  transform-origin: top center;

  opacity: 0;

  transition:
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.35s ease;

  overflow: hidden;
}


/* ══════════════════════════════════════
   GLASS HIGHLIGHT
   ══════════════════════════════════════ */

.mobile-nav::before {
  content: "";

  position: absolute;

  top: -40%;
  right: -10%;

  width: 420px;
  height: 420px;

  border-radius: 50%;

  background:
    rgba(255, 255, 255, 0.45);

  filter: blur(50px);

  pointer-events: none;
}


/* Bottom glass highlight */

.mobile-nav::after {
  content: "";

  position: absolute;

  left: 6vw;
  right: 6vw;
  bottom: 0;

  height: 1px;

  background:
    linear-gradient(
      90deg,
      transparent,
      rgba(255, 255, 255, 0.9),
      transparent
    );

  pointer-events: none;
}


/* ══════════════════════════════════════
   PANEL OPEN
   ══════════════════════════════════════ */

.mobile-nav-wrapper.is-open .mobile-nav {
  transform:
    translateY(0)
    scale(1);

  opacity: 1;
}


/* ══════════════════════════════════════
   PANEL CLOSING
   ══════════════════════════════════════ */

.mobile-nav-wrapper.is-closing .mobile-nav {
  transform:
    translateY(-105%)
    scale(0.98);

  opacity: 0;
}


/* ══════════════════════════════════════
   MOBILE HEADER
   ══════════════════════════════════════ */

.mobile-nav-header {
  position: relative;

  z-index: 1;

  display: flex;
  align-items: center;
  justify-content: center;

  /*
     The header spans the full width and MENU
     stays mathematically centered.
  */

  min-height: 42px;

  padding: 10px 52px 28.5px;

  border-bottom:
    1px solid rgba(203, 213, 225, 0.55);

  opacity: 0;

  transform:
    translateY(-8px);

  transition:
    opacity 0.3s ease 0.12s,
    transform 0.4s ease 0.12s;
}


/* MENU enters */

.mobile-nav-wrapper.is-open .mobile-nav-header {
  opacity: 1;

  transform:
    translateY(0);
}


/* MENU leaves */

.mobile-nav-wrapper.is-closing .mobile-nav-header {
  opacity: 0;

  transform:
    translateY(-8px);

  transition-delay: 0s;
}


/* ══════════════════════════════════════
   MENU LABEL
   ══════════════════════════════════════ */

.mobile-nav-title {
  font-size: 0.72rem;

  font-weight: 600;

  letter-spacing: 0.12em;

  text-transform: uppercase;

  color: var(--muted);

  text-align: center;
}


/* ══════════════════════════════════════
   MOBILE LINKS
   ══════════════════════════════════════ */

.mobile-nav-links {
  position: relative;

  z-index: 1;

  display: flex;
  flex-direction: column;

  gap: 2px;

  margin: 0;

  padding: 28px 0 0;

  list-style: none;
}

.mobile-nav-links li {
  opacity: 0;

  transform:
    translateY(22px);

  transition:
    opacity 0.4s ease,
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}


/* ══════════════════════════════════════
   STAGGERED OPEN
   ══════════════════════════════════════ */

.mobile-nav-wrapper.is-open
.mobile-nav-links li:nth-child(1) {
  opacity: 1;

  transform:
    translateY(0);

  transition-delay: 0.12s;
}

.mobile-nav-wrapper.is-open
.mobile-nav-links li:nth-child(2) {
  opacity: 1;

  transform:
    translateY(0);

  transition-delay: 0.17s;
}

.mobile-nav-wrapper.is-open
.mobile-nav-links li:nth-child(3) {
  opacity: 1;

  transform:
    translateY(0);

  transition-delay: 0.22s;
}

.mobile-nav-wrapper.is-open
.mobile-nav-links li:nth-child(4) {
  opacity: 1;

  transform:
    translateY(0);

  transition-delay: 0.27s;
}


/* ══════════════════════════════════════
   STAGGERED CLOSE
   ══════════════════════════════════════ */

.mobile-nav-wrapper.is-closing
.mobile-nav-links li:nth-child(1) {
  opacity: 0;

  transform:
    translateY(-12px);

  transition-delay: 0s;
}

.mobile-nav-wrapper.is-closing
.mobile-nav-links li:nth-child(2) {
  opacity: 0;

  transform:
    translateY(-12px);

  transition-delay: 0.025s;
}

.mobile-nav-wrapper.is-closing
.mobile-nav-links li:nth-child(3) {
  opacity: 0;

  transform:
    translateY(-12px);

  transition-delay: 0.05s;
}

.mobile-nav-wrapper.is-closing
.mobile-nav-links li:nth-child(4) {
  opacity: 0;

  transform:
    translateY(-12px);

  transition-delay: 0.075s;
}


/* ══════════════════════════════════════
   MOBILE LINKS
   ══════════════════════════════════════ */

.mobile-nav-links a {
  position: relative;

  display: flex;
  align-items: center;

  width: 100%;

  padding: 15px 12px;

  border-radius: 9px;

  color: var(--navy);

  text-decoration: none;

  font-size:
    clamp(1.05rem, 3vw, 1.25rem);

  font-weight: 450;

  letter-spacing: -0.01em;

  transition:
    background 0.2s ease,
    color 0.2s ease,
    padding-left 0.25s ease;
}

.mobile-nav-links a:hover {
  background:
    rgba(255, 255, 255, 0.55);

  padding-left: 17px;
}


/* ══════════════════════════════════════
   MOBILE CTA
   ══════════════════════════════════════ */

.mobile-nav-links .mobile-nav-cta {
  justify-content: center;

  margin-top: 18px;

  padding: 14px 20px;

  background: var(--navy);

  color: white;

  font-size: 0.95rem;

  font-weight: 500;

  box-shadow:
    0 8px 24px rgba(45, 57, 103, 0.16);

  transition:
    background 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.mobile-nav-links .mobile-nav-cta:hover {
  background: var(--navy-dk);

  color: white;

  padding-left: 20px;

  transform:
    translateY(-2px);

  box-shadow:
    0 12px 28px rgba(45, 57, 103, 0.22);
}

.mobile-nav-links .mobile-nav-cta:active {
  transform:
    translateY(0);
}


/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */

@media (max-width: 768px) {

  .site-nav {
    padding: 14px 5vw;
  }

  .site-nav.is-scrolled {
    padding-top: 11px;
    padding-bottom: 11px;
  }

  .nav-logo img {
    height: 32px;
  }

  .nav-links {
    display: none;
  }

  .nav-menu-toggle {
    display: flex;
  }

  /*
     Open-state controls use the mobile spacing.
  */

  .site-nav.menu-open .nav-logo {
    top: 14px;
    left: 5vw;
  }

  .site-nav.menu-open .nav-menu-toggle {
    top: 14px;
    right: 5vw;
  }

  .mobile-nav {
    padding-left: 5vw;
    padding-right: 5vw;
  }

  .mobile-nav::after {
    left: 5vw;
    right: 5vw;
  }
}


/* ══════════════════════════════════════
   SMALL PHONES
   ══════════════════════════════════════ */

@media (max-width: 480px) {

  .site-nav {
    padding: 13px 4.5vw;
  }

  .nav-menu-toggle {
    width: 40px;
    height: 40px;
  }

  .site-nav.menu-open .nav-logo {
    top: 13px;
    left: 4.5vw;
  }

  .site-nav.menu-open .nav-menu-toggle {
    top: 13px;
    right: 4.5vw;
  }

  .mobile-nav {
    padding-left: 4.5vw;
    padding-right: 4.5vw;

    padding-bottom: 32px;
  }

  .mobile-nav::after {
    left: 4.5vw;
    right: 4.5vw;
  }
  .mobile-nav-links {
    padding-top: 22px;
  }

  .mobile-nav-links a {
    padding-top: 14px;
    padding-bottom: 14px;
  }
}


/* ══════════════════════════════════════
   REDUCED MOTION
   ══════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {

  .site-nav,
  .nav-logo,
  .nav-links a,
  .nav-menu-toggle,
  .nav-menu-toggle span,
  .mobile-nav-wrapper,
  .mobile-nav-overlay,
  .mobile-nav,
  .mobile-nav-header,
  .mobile-nav-links li,
  .mobile-nav-links a,
  .mobile-nav-close,
  .mobile-nav-links .mobile-nav-cta {
    transition: none !important;
  }
}