/* ============================================================
   NAVBAR.CSS — fixed nav, scroll states, mobile hamburger
============================================================= */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-bg);
  transition: background-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
}

/* solid background once scrolled */
.navbar.scrolled {
  background-color: var(--color-bg);
  box-shadow: 0 2px 18px rgba(0, 0, 0, 0.5);
}

/* hide on scroll-down, show on scroll-up */
.navbar.hidden {
  transform: translateY(-100%);
}

.nav-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 0 1.25rem;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---------- Logo (typographic) ---------- */
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 0.92;
}
.logo-ba {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-white);
  letter-spacing: 0.04em;
}
.logo-pw {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--color-green);
  letter-spacing: 0.14em;
}
.logo-link {
  display: inline-flex;
  align-items: center;
}
.logo-img {
  height: 46px;
  width: auto;
  display: block;
}

/* ---------- Desktop nav links ---------- */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-white);
  position: relative;
  padding-block: 0.25rem;
  transition: color var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background-color: var(--color-green);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}
.nav-link:hover {
  color: var(--color-green);
}
.nav-link:hover::after {
  transform: scaleX(1);
}

/* ---------- Nav CTA ---------- */
.nav-cta {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-green);
  border: 2px solid var(--color-green);
  border-radius: var(--radius);
  padding: 0.55rem 1.25rem;
  transition: background-color var(--transition), color var(--transition);
}
.nav-cta:hover {
  background-color: var(--color-green);
  color: var(--color-bg);
}

/* ---------- Hamburger ---------- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 8px;
  z-index: 1100;
}
.hamburger .bar {
  display: block;
  width: 26px;
  height: 3px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* hamburger -> X when open */
.hamburger.open .bar:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.hamburger.open .bar:nth-child(2) {
  opacity: 0;
}
.hamburger.open .bar:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ============================================================
   MOBILE NAV
============================================================= */
@media (max-width: 899px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--color-bg);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 1rem 1.25rem 2rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.5);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    padding: 1rem 0.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 1.05rem;
  }
  .nav-link::after { display: none; }

  .nav-cta {
    margin-top: 1.25rem;
    text-align: center;
    padding: 0.85rem 1.25rem;
    font-size: 1rem;
  }
}