.ti-header{position:sticky;top:0;z-index:40;}
.ti-header-arch{background-color:#fdf8f0;background-image:var(--texture-plaster);border-radius:0 0 var(--arch-radius) var(--arch-radius);box-shadow:0 18px 40px rgba(0,0,0,0.12);border-bottom:1px solid rgba(0,0,0,0.02);transition:transform var(--transition-slow),border-radius var(--transition-slow),box-shadow var(--transition-slow),background-color var(--transition-slow);transform-origin:top;}
.ti-header-bar{display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-6);height:var(--header-height);}
.ti-brand{display:inline-flex;align-items:center;gap:var(--space-3);}
.ti-header-actions{display:flex;align-items:center;gap:var(--space-3);}
.ti-header-search i{font-size:0.85rem;}
.ti-header-cta{white-space:nowrap;}
@media (max-width:1024px){
  .ti-header-bar{padding-inline:var(--space-4);}
  .ti-header-cta{display:none;}
}
.ti-header-floating{position:fixed;top:10px;left:50%;transform:translateX(-50%);width:min(1120px,100% - 2.5rem);border-radius:999px;background-color:rgba(255,255,255,0.92);backdrop-filter:blur(18px);box-shadow:0 18px 45px rgba(0,0,0,0.16);border:1px solid rgba(0,0,0,0.04);}
.ti-header-floating .ti-header-arch{border-radius:999px;background-image:none;box-shadow:none;}
.ti-header-floating .ti-header-bar{border-radius:999px;}
.header-menu-toggle{display:none;cursor:pointer;}
.header-menu-toggle span{display:block;width:16px;height:1px;background:var(--color-text);position:relative;transition:background-color var(--transition-base);}
.header-menu-toggle span::before,.header-menu-toggle span::after{content:"";position:absolute;left:0;width:100%;height:1px;background:var(--color-text);transition:transform var(--transition-base),top var(--transition-base),opacity var(--transition-base);}
.header-menu-toggle span::before{top:-5px;}
.header-menu-toggle span::after{top:5px;}
@media (max-width:1024px){
  .header-menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;border:1px solid rgba(0,0,0,0.08);background:rgba(255,255,255,0.6);backdrop-filter:blur(10px);}
  .ti-nav-primary{display:none;}
}
.header-menu-toggle.is-active span{background-color:transparent;}
.header-menu-toggle.is-active span::before{top:0;transform:rotate(45deg);}
.header-menu-toggle.is-active span::after{top:0;transform:rotate(-45deg);}
.nav-overlay{position:fixed;inset:0;background:radial-gradient(circle at 10% 0,#fdf7ef 0,#f1ddcb 40%,#d9c3af 75%,#151820 100%);color:#1a120c;z-index:50;opacity:0;visibility:hidden;transition:opacity var(--transition-slow),visibility var(--transition-slow);}
.nav-overlay[data-open="true"]{opacity:1;visibility:visible;}
.nav-overlay-inner{height:100%;display:flex;flex-direction:column;justify-content:space-between;padding:var(--space-6);gap:var(--space-4);}
.nav-overlay-arch{position:relative;flex:1;border-radius:var(--arch-radius);border:1px solid rgba(255,255,255,0.4);background:radial-gradient(circle at 0 0,rgba(255,255,255,0.92) 0,transparent 55%),radial-gradient(circle at 80% 100%,rgba(254,237,219,0.9) 0,transparent 55%);box-shadow:0 30px 80px rgba(0,0,0,0.4);overflow:hidden;display:grid;grid-template-columns:1.2fr 1fr;}
@media (max-width:768px){
  .nav-overlay-inner{padding:var(--space-5);}
  .nav-overlay-arch{grid-template-columns:1fr;}
}
.nav-overlay-links{position:relative;padding:var(--space-6);display:grid;grid-template-columns:1fr 1fr;gap:var(--space-6);align-content:center;}
@media (max-width:768px){
  .nav-overlay-links{grid-template-columns:1fr;gap:var(--space-5);}
}
.nav-overlay-group-title{font-size:0.8rem;letter-spacing:0.22em;text-transform:uppercase;color:var(--gray-600);margin-bottom:var(--space-3);}
.nav-overlay-link{display:block;font-family:var(--font-display);font-size:1.6rem;letter-spacing:0.08em;text-transform:uppercase;margin-bottom:var(--space-3);}
.nav-overlay-link span{display:block;font-family:var(--font-sans);font-size:0.8rem;letter-spacing:0.16em;text-transform:uppercase;color:var(--gray-600);margin-top:0.35rem;}
.nav-overlay-symbols{position:relative;padding:var(--space-6);display:flex;flex-direction:column;justify-content:space-between;gap:var(--space-4);border-left:1px solid rgba(0,0,0,0.06);background:radial-gradient(circle at 0 0,rgba(255,255,255,0.85) 0,transparent 55%);}
@media (max-width:768px){
  .nav-overlay-symbols{border-left:none;border-top:1px solid rgba(0,0,0,0.06);}
}
.symbol-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4);}
.symbol-pill{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-xs);}
.symbol-icon{width:30px;height:30px;border-radius:999px;border:1px solid rgba(0,0,0,0.08);background:rgba(255,255,255,0.9);display:flex;align-items:center;justify-content:center;font-size:0.85rem;}
.nav-overlay-meta{font-size:var(--font-size-xs);color:var(--gray-700);}
.ti-nav-overlay-top{display:flex;justify-content:flex-end;}
.ti-nav-overlay-bottom{display:flex;justify-content:flex-end;}
.ti-nav-overlay-close{background:rgba(255,255,255,0.8);}
body.ti-nav-open{overflow:hidden;}
body.ti-nav-open #site-header{z-index:60;}