.nav {
  position: sticky;
  top: 0;
  z-index: 50;
}


.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;

  font-weight: 700;
  text-decoration: none;
  color: var(--color-text);
  letter-spacing: 0.2px;

  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

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

.nav__logo-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  object-fit: contain;
  display: block;
}

.nav__logo-text {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  line-height: 1;
  white-space: nowrap;
}

.nav__logo-main {
  color: var(--color-text);
  font-weight: 700;
}

.nav__logo-brand {
  color: var(--color-brand);
  font-weight: 800;
}


.nav__links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.nav__links a{
  font-weight: 500;
  position: relative;
  color: var(--color-text);
  text-decoration: none;
  opacity: 0.85;
  transition: opacity var(--dur) var(--ease);
  padding-bottom: 6px; 
}

.nav__links a::after{
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px; 
  background: var(--color-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
  border-radius: 999px; 
}

.nav__links a:hover{
  opacity: 1;
}

.nav__links a:hover::after{
  transform: scaleX(1);
}

.nav__cta { white-space: nowrap; }

.nav__burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
}
.nav__burger span {
  display: block;
  height: 2px;
  margin: 6px 10px;
  background: var(--color-text);
  border-radius: 999px;
}


.nav.scrolled {
  background: var(--nav-glass-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(var(--nav-blur));
  -webkit-backdrop-filter: blur(var(--nav-blur));
  box-shadow: var(--shadow-sm);
}


/* =========================
   RESPONSIVE
========================= */
.nav__mobile{
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;

  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);

  display: grid;
  gap: 0.75rem;
  padding: 1rem;

  max-height: 0;
  opacity: 0;
  transform: translateY(-6px);
  overflow: hidden;
  pointer-events: none;

  transition:
    max-height 420ms var(--ease),
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.nav__mobile.is-open{
  max-height: 420px; 
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav__mobile:not([hidden]) {
  display: grid;
}

.nav__mobile a {
  text-decoration: none;
  color: var(--color-text);
}



@media (min-width: 901px){
  .nav__mobile{ display: none; }
}

@media (max-width: 900px) {
  .nav__links,
  .nav__cta { display: none; }

  .nav__burger { display: inline-block; }

  .nav__logo-mark {
    width: 30px;
    height: 30px;
  }

  .nav__logo:hover {
    transform: none;
  }

  .nav__logo-text {
    gap: 0.2rem;
    font-size: 0.95rem;
  }

    .nav__links, .nav__cta { display: none; }
  .nav__burger { display: inline-block; }
}