/* ============================================================
   NAVBAR — Production
   Add this into SBU.css, replacing your existing
   header / .nav / .nav-* rules (Section 4).
   All colors use var(--primary) — theme-aware.
   ============================================================ */

/* ── Base shell ─────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
  border-bottom-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* ── Logo ───────────────────────────────────────────────────── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo .logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease;
}

.nav-logo:hover .logo-mark {
  transform: rotate(-8deg) scale(1.05);
}

.nav-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.nav-logo .logo-text span:first-child {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-main);
}

.nav-logo .logo-text span:last-child {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #888888;
}

/* ── Desktop nav links ──────────────────────────────────────── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  position: relative;
  display: inline-block;
  padding: 0.45rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-main);
  text-decoration: none;
  border-radius: 6px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0.75rem;
  right: 0.75rem;
  bottom: 0.2rem;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-links a:hover {
  color: var(--primary);
  background: rgba(0, 0, 0, 0.03);
}

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

/* ── Desktop CTA button ─────────────────────────────────────── */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  background: var(--primary);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity 0.2s ease, transform 0.15s ease;
}

.nav-cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
  color: var(--white);
}

/* suppress underline pseudo on CTA */
.nav-cta::after {
  display: none;
}

/* ── Hamburger button ───────────────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
  gap: 5px;
  border-radius: 8px;
  flex-shrink: 0;
  transition: background 0.2s ease;
}

.nav-hamburger:hover {
  background: rgba(0, 0, 0, 0.05);
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
  transform-origin: center;
}

/* Hamburger → X animation */
.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  width: 0;
}

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

/* ── Mobile drawer ──────────────────────────────────────────── */
.nav-drawer {
  display: none;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  background: rgba(255, 255, 255, 0.98);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  transition: max-height 0.38s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease;
}

.nav-drawer.open {
  max-height: 420px;
  opacity: 1;
}

.nav-drawer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.nav-drawer-inner a {
  display: flex;
  align-items: center;
  padding: 0.8rem 0.5rem;
  font-size: 0.88rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-main);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.nav-drawer-inner a:last-of-type {
  border-bottom: none;
}

.nav-drawer-inner a:hover {
  color: var(--primary);
  padding-left: 0.9rem;
}

.nav-drawer-inner .drawer-cta {
  margin-top: 0.9rem;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  background: var(--primary);
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 700;
  border-bottom: none;
  transition: opacity 0.2s ease;
}

.nav-drawer-inner .drawer-cta:hover {
  opacity: 0.88;
  padding-left: 1.25rem;
  color: var(--white);
}

/* ── Responsive breakpoints ─────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-drawer {
    display: block;
  }
}

@media (max-width: 400px) {
  .navbar-inner {
    height: 56px;
  }
}