/* NAV v2.5 — fixed header + reserved space via safe spacer (no body padding dependence) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Playfair+Display:wght@600;700;800&display=swap');

:root{
  --nav-bg: rgba(255,255,255,.92);
  --nav-bg2: rgba(255,255,255,.78);
  --nav-border: rgba(15, 23, 42, .10);
  --text: rgba(2, 6, 23, .92);
  --muted: rgba(2, 6, 23, .62);
  --accent: #2bc4e3;
  --shadow: 0 18px 54px rgba(2, 6, 23, .14);
  --r: 16px;
  --ease: cubic-bezier(.2,.9,.2,1);

  --nav-h: 92px;
}
@media (max-width: 900px){
  :root{ --nav-h: 82px; }
}

html{ scroll-padding-top: calc(var(--nav-h) + 12px); }
body{ margin:0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }

/* Reserve space regardless of page-level :root overrides */
.site-header{
  position: relative;
  height: var(--nav-h);
  z-index: 1000;
}

/* Fixed bar */
.site-header[data-nav="main"]{
  height: var(--nav-h);
}

.site-header[data-nav="main"] .nav-wrap{
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 16px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 14px;
  align-items: center;
  min-height: var(--nav-h);
}

/* actual fixed layer */
.site-header[data-nav="main"]::before{
  content:"";
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: -1;
  background: linear-gradient(180deg, var(--nav-bg), var(--nav-bg2));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--nav-border);
}

/* fixed clickable layer (nav content) */
.site-header[data-nav="main"]{
  position: relative;
}
.site-header[data-nav="main"] > .nav-wrap{
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1001;
  background: transparent;
  border-bottom: 1px solid transparent;
  isolation: isolate;
}

/* Brand */
.brand{
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 12px;
  row-gap: 2px;
  align-items: center;
  text-decoration: none;
  color: var(--text);
  min-width: 0;
  white-space: nowrap;
}
.brand-text{
  font-weight: 900;
  letter-spacing: .2px;
  line-height: 1.05;
  font-size: 18px;
  white-space: nowrap;
}
.brand-sub{
  grid-column: 2 / 3;
  font-size: 12.5px;
  letter-spacing: .22px;
  color: var(--muted);
  margin-top: -1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 44vw;
}
.brand-mark{
  width: 86px;
  height: 86px;
  border-radius: 18px;
  background: transparent;
  border: 0;
  position: relative;
  overflow: hidden;
  flex: none;
}
.brand-mark::before{
  content:"";
  position:absolute;
  inset: 6px;
  background: url("../logo.png") center / contain no-repeat;
  filter: drop-shadow(0 6px 10px rgba(2,6,23,.10));
}

/* Desktop nav */
.nav-desktop{
  display: flex;
  gap: 6px;
  align-items: center;
  padding: 6px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .04);
  border: 1px solid rgba(15, 23, 42, .06);
}
.nav-link{
  color: var(--muted);
  text-decoration: none;
  font-weight: 800;
  font-size: 14px;
  padding: 10px 12px;
  border-radius: 999px;
  position: relative;
  transition: background .22s var(--ease), color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
  border: 1px solid transparent;
}
.nav-link:hover{
  color: var(--text);
  background: rgba(255,255,255,.88);
  box-shadow: 0 10px 24px rgba(2,6,23,.08);
  transform: translateY(-1px);
}
.nav-link:focus-visible{
  outline: 2px solid rgba(43,196,227,.55);
  outline-offset: 2px;
}
.nav-link.is-active{
  color: var(--text);
  background: linear-gradient(180deg, rgba(43,196,227,.22), rgba(43,196,227,.12));
  border-color: rgba(43,196,227,.30);
  box-shadow: 0 16px 44px rgba(43,196,227,.14);
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 2px;
  border-radius: 99px;
  background: rgba(43,196,227,.92);
}

/* CTA */
.nav-cta{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: rgba(2, 6, 23, .94);
  background: linear-gradient(180deg, rgba(43,196,227,1), rgba(43,196,227,.86));
  padding: 11px 14px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 13.5px;
  box-shadow: 0 18px 44px rgba(43,196,227,.18);
  border: 1px solid rgba(2,6,23,.06);
  white-space: nowrap;
  transition: transform .22s var(--ease), filter .22s var(--ease), box-shadow .22s var(--ease);
}
.nav-cta:hover{
  transform: translateY(-1px);
  filter: brightness(1.02);
  box-shadow: 0 22px 54px rgba(43,196,227,.22);
}
.nav-cta:active{ transform: translateY(0); }

/* Toggle */
.nav-toggle{
  display: none;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, .10);
  background: rgba(15, 23, 42, .04);
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 16px 40px rgba(2,6,23,.10);
  transition: transform .22s var(--ease), background .22s var(--ease);
}
.nav-toggle:hover{ transform: translateY(-1px); background: rgba(15, 23, 42, .06); }
.nav-toggle:active{ transform: translateY(0); }
.nav-toggle:focus-visible{
  outline: 2px solid rgba(43,196,227,.55);
  outline-offset: 2px;
}
.ham{
  width: 18px;
  height: 14px;
  display: grid;
  gap: 3px;
  margin: 0 auto;
}
.ham span{
  display: block;
  height: 2px;
  border-radius: 99px;
  background: rgba(2, 6, 23, .85);
}

/* Fullscreen Mobile Overlay */
.nav-mobile{
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100dvh !important;
  z-index: 2147483647 !important;
  pointer-events: none;
  opacity: 0;
  transition: opacity .20s var(--ease);
}
.nav-mobile.is-open{ pointer-events: auto; opacity: 1; }
.nav-backdrop{
  position: fixed !important;
  inset: 0 !important;
  border: 0;
  z-index: 0 !important;
  background: rgba(2,6,23,.22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  cursor: pointer;
}
.nav-mobile-panel{
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100dvh !important;
  z-index: 1 !important;
  background:
    radial-gradient(900px 520px at 18% 12%, rgba(43,196,227,.20), rgba(43,196,227,0) 58%),
    radial-gradient(820px 520px at 88% 22%, rgba(15, 23, 42, .05), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,255,255,.92));
  box-shadow: var(--shadow);
  transform: translateY(10px) scale(.99);
  transition: transform .24s var(--ease);
  display: grid;
  grid-template-rows: auto 1fr auto;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.nav-mobile.is-open .nav-mobile-panel{ transform: translateY(0) scale(1); }

.nav-mobile-top{
  padding: 16px 16px 12px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  border-bottom: 1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.brand--mobile .brand-mark{ width: 60px; height: 60px; border-radius: 20px; }
.brand--mobile .brand-text{ font-size: 18px; }
.brand--mobile .brand-sub{ max-width: 56vw; }

.nav-close{
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, .10);
  background: rgba(15, 23, 42, .04);
  color: rgba(2, 6, 23, .92);
  cursor: pointer;
  box-shadow: 0 16px 40px rgba(2,6,23,.10);
  transition: transform .22s var(--ease), background .22s var(--ease);
}
.nav-close:hover{ transform: translateY(-1px); background: rgba(15, 23, 42, .06); }
.nav-close:active{ transform: translateY(0); }
.nav-close:focus-visible{
  outline: 2px solid rgba(43,196,227,.55);
  outline-offset: 2px;
}

.nav-mobile-links{
  padding: 14px 14px 10px;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  display: grid;
  gap: 10px;
  align-content: start;
}
.nav-m-link{
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 14px 14px;
  border-radius: 18px;
  text-decoration: none;
  color: rgba(2, 6, 23, .92);
  background: rgba(255,255,255,.80);
  border: 1px solid rgba(15, 23, 42, .10);
  font-weight: 860;
  transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
  box-shadow: 0 10px 24px rgba(2,6,23,.08);
}
.nav-m-link::after{
  content:"›";
  font-size: 18px;
  line-height: 1;
  color: rgba(2,6,23,.35);
}
.nav-m-link:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,.94);
  border-color: rgba(43,196,227,.28);
  box-shadow: 0 18px 44px rgba(2,6,23,.12);
}
.nav-m-link.is-active{
  border-color: rgba(43,196,227,.34);
  background: linear-gradient(180deg, rgba(43,196,227,.18), rgba(255,255,255,.86));
}
.nav-m-link.is-active::after{
  content:"✓";
  color: rgba(43,196,227,.95);
}

.nav-mobile-cta-row{
  padding: 14px 16px 18px;
  border-top: 1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.nav-cta--mobile{ width: 100%; padding: 14px 16px; font-size: 14px; }

@media (max-width: 900px){
  .brand-mark{ width: 72px; height: 72px; border-radius: 16px; }
  .brand-sub{ max-width: 54vw; }

  .nav-desktop{ display: none; }
  .nav-cta{ display: none; }
  .nav-toggle{ display: inline-flex; align-items: center; justify-content: center; }
  .site-header[data-nav="main"] .nav-wrap{ grid-template-columns: 1fr auto; padding: 10px 14px; }
}

body.nav-locked{
  overflow: hidden;
  touch-action: none;
}

@media (prefers-reduced-motion: reduce){
  .nav-link, .nav-cta, .nav-toggle, .nav-mobile, .nav-mobile-panel, .nav-m-link, .nav-close{
    transition: none !important;
  }
}