/* ═══════════════════════════════════════════════════════════════
   css/nav.css — Navigation
   ═══════════════════════════════════════════════════════════════ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(245, 242, 236, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.nav.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 24px rgba(10, 11, 15, 0.06);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  flex-shrink: 0;
}

.nav-logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background var(--duration) var(--ease);
}
.nav-logo:hover .nav-logo-mark { background: var(--accent); }

.nav-logo-name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 14px;
  font-weight: 400;
  color: var(--faint);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}
.nav-link:hover { color: var(--ink); }

/* CTA button */
.nav-cta {
  background: var(--ink);
  color: var(--paper);
  padding: 9px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--duration) var(--ease);
}
.nav-cta:hover {
  background: var(--accent);
  color: #fff;
}

/* Mobile hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile drawer */
.nav-drawer {
  display: none;
  position: fixed;
  top: 73px; left: 0; right: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  padding: 24px var(--gutter);
  flex-direction: column;
  gap: 20px;
  z-index: 99;
  box-shadow: var(--shadow-md);
}
.nav-drawer.open { display: flex; }
.nav-drawer .nav-link {
  font-size: 16px;
  color: var(--ink);
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.nav-drawer .nav-cta {
  text-align: center;
  padding: 14px;
  border-radius: 12px;
  margin-top: 8px;
}

@media (max-width: 768px) {
  .nav-links      { display: none; }
  .nav-hamburger  { display: flex; }
}