/* ------------ Navigation ------------ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background 0.4s ease, border-color 0.4s ease, padding 0.3s ease;
  border-bottom: 1px solid transparent;
  color: #f3ede2;
}
.nav .logo-mark { border-color: #f3ede2; color: #f3ede2; }
.nav .logo-text .name { color: #f3ede2; }
.nav .logo-text .sub { color: rgba(243,237,226,0.65); }
.nav .nav-links a { color: rgba(243,237,226,0.85); }
.nav .nav-links a:hover { color: #f3ede2; }
.nav .nav-cta { border-color: #f3ede2; color: #f3ede2; }
.nav .nav-cta span { position: relative; z-index: 1; transition: color 0.4s ease 0.05s; }
.nav .nav-cta::before { background: #f3ede2; }
.nav .nav-cta:hover { color: #12141c; }
.nav .nav-cta:hover span { color: #12141c; }
.nav .nav-cta:hover .dot { background: var(--brass-deep); }
.nav .menu-toggle span { background: #f3ede2; }

.nav.scrolled {
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom-color: var(--rule);
  padding: 12px 0;
  color: var(--ink);
}
.nav.scrolled .logo-mark { border-color: var(--ink); color: var(--ink); }
.nav.scrolled .logo-text .name { color: var(--ink); }
.nav.scrolled .logo-text .sub { color: var(--muted); }
.nav.scrolled .nav-links a { color: var(--ink-soft); }
.nav.scrolled .nav-links a:hover { color: var(--ink); }
.nav.scrolled .nav-cta { border-color: var(--ink); color: var(--ink); }
.nav.scrolled .nav-cta span { color: var(--ink); }
.nav.scrolled .nav-cta::before { background: var(--ink); }
.nav.scrolled .nav-cta:hover { color: var(--bg); }
.nav.scrolled .nav-cta:hover span { color: var(--bg); }
.nav.scrolled .menu-toggle span { background: var(--ink); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
}
.logo-mark {
  width: 44px; height: 44px;
  border: 1px solid var(--ink);
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  font-style: italic;
  color: var(--ink);
  position: relative;
  transition: transform 0.5s cubic-bezier(.2,.8,.2,1);
}
.logo-mark::after {
  content: "";
  position: absolute; inset: 3px;
  border: 0.5px solid var(--brass);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.logo:hover .logo-mark { transform: rotate(-4deg); }
.logo:hover .logo-mark::after { opacity: 1; }
.logo-text {
  display: flex; flex-direction: column;
  line-height: 1;
}
.logo-text .name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.logo-text .sub {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: var(--ink-soft);
  position: relative;
  padding: 6px 0;
  transition: color 0.3s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 1px;
  width: 0;
  background: var(--brass);
  transition: width 0.4s cubic-bezier(.2,.8,.2,1);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }

a.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 28px;
  border: 1px solid var(--ink);
  color: var(--ink);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  position: relative;
  overflow: hidden;
  transition: color 0.4s ease;
}
.nav-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: translateY(101%);
  transition: transform 0.5s cubic-bezier(.7,0,.2,1);
  z-index: -1;
}
.nav-cta:hover { color: var(--bg); }
.nav-cta:hover::before { transform: translateY(0); }
.nav-cta .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--brass);
  box-shadow: 0 0 0 0 var(--brass);
  animation: pulse 2.6s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in oklab, var(--brass) 70%, transparent); }
  70%  { box-shadow: 0 0 0 8px color-mix(in oklab, var(--brass) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--brass) 0%, transparent); }
}

.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  position: relative;
}
.menu-toggle span {
  position: absolute; left: 10px; right: 10px;
  height: 1px; background: var(--ink);
  transition: transform 0.4s ease, top 0.4s ease, opacity 0.4s ease;
}
.menu-toggle span:nth-child(1) { top: 16px; }
.menu-toggle span:nth-child(2) { top: 22px; }
.menu-toggle span:nth-child(3) { top: 28px; }
.menu-toggle.open span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { top: 22px; transform: rotate(-45deg); }