/* NAV */
nav {
  position: fixed;
  top: 20px;
  width: 90%;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.8rem;
  padding: 0 1.4rem;
  height: 68px;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.48);
  box-shadow: 0 10px 36px rgba(8, 16, 42, 0.11);
  transition: background 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
  max-width: 1200px;
  margin: 0 auto;
  border-radius: 40px;
}

nav.scrolled {
  backdrop-filter: blur(24px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 14px 40px rgba(4, 8, 25, 0.35);
}

/* @keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
} */

.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
  flex-shrink: 0;
  transition: color 0.25s ease;
}




.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links-desktop {
  flex: 1;
  justify-content: center;
}

.nav-links a {
  position: relative;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--muted);
  opacity: 0.85;
  transition: color 0.25s ease, opacity 0.25s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.nav-links a:hover {
  color: var(--blue);
  opacity: 1;
}

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

nav.scrolled .nav-links a {
  color: #000000;
  opacity: 0.9;
}



.nav-cta {
  background: var(--blue);
  color: #fff !important;
  padding: 0.5rem 1.3rem;
  border-radius: 100px;
  font-weight: 600 !important;
  text-decoration: none;
  transition: background 0.24s, transform 0.24s, box-shadow 0.24s !important;
  box-shadow: 0 8px 24px rgba(43, 91, 255, 0.28);
}

.nav-cta:hover {
  background: var(--blue-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(43, 91, 255, 0.36);
}

.nav-cta-desktop {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  z-index: 230;
  transition: background 0.25s ease;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 8px;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.2s ease;
}

nav.scrolled .nav-toggle {
  background: rgba(2, 2, 2, 1);
}

nav.scrolled .nav-toggle span {
  background: #fff;
}

body.menu-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.menu-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

body.menu-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile-menu {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  height: 100vh;
  width: 100%;
  background: var(--bg);
  z-index: 10;
  padding: 5rem 2rem 3rem;
  overflow: hidden;
  inset: 0;
  transform: translateX(100%);
  transition: transform 0.48s cubic-bezier(.4, 0, .2, 1), opacity 0.28s ease;
  pointer-events: none;
  opacity: 0;
}

.nav-mobile-menu::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43, 91, 255, 0.18) 0%, rgba(43, 91, 255, 0) 70%);
  pointer-events: none;
}

.nav-mobile-menu::after {
  content: '';
  position: absolute;
  left: -100px;
  bottom: -140px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 241, 53, 0.15) 0%, rgba(198, 241, 53, 0) 72%);
  pointer-events: none;
}

.nav-mobile-menu > * {
  position: relative;
  z-index: 1;
}

.nav-mobile-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  text-align: center;
  
}

.nav-mobile-links li {
  opacity: 0;
  transform: translateX(28px);
}

.nav-mobile-links a {
  text-decoration: none;
  color: var(--text);
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.4rem, 4.8vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.nav-cta-mobile {
  opacity: 0;
  transform: translateY(14px);
  padding: 0.78rem 1.9rem;
}

body.menu-open {
  overflow: hidden;
}

body.menu-open .nav-mobile-menu {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

body.menu-open .nav-mobile-links li {
  animation: navCascade 0.5s ease forwards;
}

body.menu-open .nav-mobile-links li:nth-child(1) { animation-delay: 0.08s; }
body.menu-open .nav-mobile-links li:nth-child(2) { animation-delay: 0.14s; }
body.menu-open .nav-mobile-links li:nth-child(3) { animation-delay: 0.2s; }
body.menu-open .nav-mobile-links li:nth-child(4) { animation-delay: 0.26s; }
body.menu-open .nav-mobile-links li:nth-child(5) { animation-delay: 0.32s; }

body.menu-open .nav-cta-mobile {
  animation: ctaUp 0.45s 0.4s ease forwards;
}

@keyframes navCascade {
  from {
    opacity: 0;
    transform: translateX(28px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes ctaUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  nav {
    height: 62px;

  }

  .nav-logo {
    font-size: 1.05rem;
  }

  .nav-links-desktop,
  .nav-cta-desktop {
    display: none;
  }

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