:root{
  --navy:#03176D;
  --navy-700:#0a2178;
  --navy-900:#050f3d;
  --ink:#0A1330;
  --crimson:#B00014;
  --crimson-600:#c8102e;
  --parchment:#F7F5F0;
  --nav-h: 92px;
  --nav-h-scrolled: 72px;
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: rgba(247,245,240,0.88);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(10,19,48,0.08);
  transition: box-shadow 0.35s ease, border-color 0.35s ease;
}

.topbar.is-scrolled{
  box-shadow: 0 8px 30px rgba(5,15,61,0.10);
  border-bottom-color: rgba(10,19,48,0.06);
}

/* thin crimson hairline that grows in on scroll — the signature detail */
.topbar::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-1px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--crimson-600), transparent);
  transform: scaleX(0);
  opacity: 0;
  transition: transform 0.5s ease, opacity 0.5s ease;
}
.topbar.is-scrolled::after{
  transform: scaleX(1);
  opacity: 1;
}

.topbar-inner{
  max-width: 1360px;
  margin: 0 auto;
  height: var(--nav-h);
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  transition: height 0.3s ease;
}
.topbar.is-scrolled .topbar-inner{
  height: var(--nav-h-scrolled);
}

.brand{
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark{
  height: 76px;
  padding: 0.5rem 0;
  box-sizing: border-box;
  transition: height 0.3s ease;
}
.topbar.is-scrolled .brand-mark{
  height: 66px;
}

.brand-text{ display:flex; flex-direction:column; line-height:1.1; }
.brand-name{
  font-family:'Playfair Display', Georgia, serif;
  font-weight:700;
  font-size:22px;
  color: var(--ink);
  letter-spacing:1px;
}
.brand-sub{
  font-size:12px;
  letter-spacing:2px;
  text-transform:uppercase;
  color: var(--crimson-600);
  font-weight:600;
  margin-top:3px;
}

nav[aria-label="Primary"]{ flex: 1; display:flex; justify-content:center; }
.nav-links{
  list-style:none;
  display:flex;
  align-items:center;
  gap: 8px;
  margin:0;
  padding:0;
}

.nav-item{ position: relative; }

.nav-link{
  display:flex;
  align-items:center;
  gap:6px;
  padding: 18px;
  font-size:1rem;
  font-weight:500;
  color: var(--ink);
  text-decoration:none;
  letter-spacing:0.2px;
  position: relative;
  transition: color 0.2s ease;
}

.nav-link::before{
  content:"";
  position:absolute;
  left:50%; right:50%;
  bottom: 6px;
  height: 2px;
  background: var(--crimson-600);
  transition: left 0.25s ease, right 0.25s ease;
}
.nav-link:hover{ color: var(--crimson-600); }
.nav-link:hover::before{ left: 18px; right: 18px; }

.caret{
  width:14px; height:14px;
  transition: transform 0.25s ease;
  color: currentColor;
  opacity: 0.65;
}
.nav-item:hover .caret{ transform: rotate(180deg); }

.dropdown{
  position:absolute;
  top: calc(100% + 5px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 300px;
  background: #ffffff;
  border-radius: 14px;
  box-shadow: 0 24px 48px rgba(5,15,61,0.16), 0 2px 8px rgba(5,15,61,0.06);
  border-top: 3px solid var(--crimson-600);
  padding: 22px 10px 14px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 20;
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown{
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-label{
  display:block;
  font-family:'Playfair Display', Georgia, serif;
  font-style: italic;
  font-size: 13px;
  color: #9aa0bd;
  padding: 0 14px 10px;
  margin-bottom: 6px;
  border-bottom: 1px solid #eef0f6;
}

.dropdown a{
  display:block;
  padding: 11px 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, padding-left 0.15s ease;
}

.dropdown a:hover{
  background: var(--parchment);
  color: var(--crimson-600);
  padding-left: 18px;
}

.nav-cta{
  display:flex;
  align-items:center;
  gap: 18px;
  flex-shrink:0;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  font-weight:600;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  white-space: nowrap;
}

.btn--sm{ padding: 11px 26px; font-size: 14px; }

.btn--primary{
  background: linear-gradient(135deg, var(--crimson-600), var(--crimson));
  color: #fff;
  box-shadow: 0 8px 20px rgba(176,0,20,0.28);
}
.btn--primary:hover{
  box-shadow: 0 10px 26px rgba(176,0,20,0.4);
  transform: translateY(-1px);
}

.btn--ghost{
  background: transparent;
  border: 1.5px solid rgba(10,19,48,0.18);
  color: var(--ink);
}
.btn--ghost:hover{
  border-color: var(--crimson-600);
  color: var(--crimson-600);
}

.burger{
  display:none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items:center;
  justify-content:center;
  gap: 5px;
}
.burger span{
  display:block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
}
.burger[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }
.mobile-panel{
  position: fixed;
  inset: 0;
  top: var(--nav-h-scrolled);
  z-index: 999;
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--ink) 100%);
  padding: 28px 28px 40px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
  overflow-y: auto;
}
.mobile-panel.is-open{
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
}

.m-link, .m-toggle{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  background:none;
  border:none;
  text-align:left;
  padding: 18px 4px;
  font-size: 19px;
  font-weight: 500;
  color: #f0f1f7;
  text-decoration:none;
  border-bottom: 1px solid rgba(199,203,224,0.12);
  cursor: pointer;
  font-family: inherit;
}

.m-toggle .caret{ color: #9aa0bd; }
.m-toggle[aria-expanded="true"] .caret{ transform: rotate(180deg); }

.m-sub{
  max-height: 0;
  overflow: hidden;
  display:flex;
  flex-direction: column;
  transition: max-height 0.3s ease;
}
.m-sub.is-open{ max-height: 400px; }

.m-sub a{
  padding: 14px 4px 14px 18px;
  font-size: 16px;
  color: #a6adcf;
  text-decoration: none;
  border-bottom: 1px solid rgba(199,203,224,0.08);
}
.m-sub a:hover{ color: #fff; }

.mobile-cta{ margin-top: 20px; }
.mobile-cta .btn{ width: 100%; padding: 16px; font-size: 16px; }

@media (max-width: 1080px){
  .nav-links{ gap: 2px; }
  .nav-link{ padding: 12px 12px; font-size: 14px; }
}

@media (max-width: 900px){
  nav[aria-label="Primary"]{ display: none; }
  .burger{ display: flex; }
  .topbar-inner{ padding: 0 20px; }
  .nav-cta{ gap: 12px; }
}
@media (max-width: 480px){
  .brand-mark{ height: 64px; }
  .topbar.is-scrolled .brand-mark{ height: 54px; }
  .btn--sm{ padding: 9px 18px; font-size: 13px; }
}