/* Shared nav + mobile menu — injected into every page */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 4rem;
  border-bottom: 1px solid transparent;
  background: #ffffff;
  transition: border-color 0.3s ease, padding 0.3s ease;
}
nav.scrolled {
  border-color: var(--border);
  padding: 0.9rem 4rem;
}
.nav-logo {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--mid);
  text-decoration: none;
  position: relative;
  transition: color 0.25s;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--ink);
  transition: width 0.3s ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0em;
  text-transform: none;
  font-weight: 500;
  color: var(--bg);
  background: var(--ink);
  padding: 0.55rem 1.2rem;
  border-radius: 6px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: color 0.3s;
}
.nav-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: #37352f;
  transform: translateX(-101%);
  transition: transform 0.3s ease;
}
.nav-cta:hover::before { transform: translateX(0); }
.nav-cta span { position: relative; z-index: 1; }

/* HAMBURGER */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* MOBILE MENU */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}
.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}
.mobile-menu a {
  font-family: 'Inter', sans-serif;
  font-size: 3.5rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.05em;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s;
}
.mobile-menu.open a {
  opacity: 1;
  transform: translateY(0);
}
.mobile-menu.open a:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu.open a:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu.open a:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu.open a:nth-child(4) { transition-delay: 0.2s; }
.mobile-menu.open a:nth-child(5) { transition-delay: 0.25s; }
.mobile-menu a:hover { color: var(--mid); }

/* HERO */
#hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem 4rem 4rem;
  position: relative;
  overflow: hidden;
}

@media (max-width: 1024px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 600px) {
  nav { padding: 0.9rem 1.2rem; }
  .nav-logo { font-size: 0.62rem; letter-spacing: 0.1em; }
  .mobile-menu a { font-size: 2.8rem; min-height: 44px; display: flex; align-items: center; }
}