/* ARCHIVE0 — навигация */

/* ---------- навигация ---------- */
#nav{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:oklch(0.14 0.005 80 / .55);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
#nav.scrolled{background:oklch(0.12 0.005 80 / .82);border-bottom-color:var(--line)}
#nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}

.brand{display:flex;align-items:center;gap:12px;color:var(--txt);font-weight:600;font-size:15px;letter-spacing:-.01em;white-space:nowrap}
.brand-text{display:grid;gap:1px;line-height:1.15}
.brand-name{font-family:var(--serif);font-size:16.5px;font-weight:500;letter-spacing:.06em}
.brand-sub{font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mut)}
.brand:hover .brand-sub{color:var(--acc)}
.brand-sub,.brand-name{transition:color .25s ease}
.brand:hover{color:var(--txt)}
.seal{
  position:relative;display:grid;place-items:center;width:36px;height:36px;flex:0 0 36px;
  border-radius:10px;
  font-family:var(--serif);font-size:13.5px;font-weight:600;letter-spacing:.01em;color:var(--acc);
  background:
    linear-gradient(155deg,oklch(0.82 0.12 78 / .16),transparent 55%),
    linear-gradient(200deg,var(--panel-2),var(--panel) 70%);
  border:1px solid var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),inset 0 0 0 1px rgba(0,0,0,.15),0 6px 14px -8px rgba(0,0,0,.6);
  overflow:hidden;
  transform:rotate(7deg);
  transition:transform .4s cubic-bezier(.2,.8,.2,1),box-shadow .4s ease,border-color .4s ease;
  animation:sealFloat 5s ease-in-out infinite;
  will-change:transform;
}
.seal::before{
  content:"";position:absolute;inset:2px;border-radius:7px;
  border:1px solid oklch(0.82 0.12 78 / .18);pointer-events:none;
}
.seal::after{
  content:"";position:absolute;top:-60%;left:-20%;width:40%;height:220%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
  transform:rotate(20deg) translateX(-140%);
  transition:transform .9s ease;
  pointer-events:none;
}
.seal span{position:relative;z-index:1}
@keyframes sealFloat{
  0%,100%{transform:rotate(7deg) translateY(0)}
  50%{transform:rotate(4deg) translateY(-2px)}
}
.brand:hover .seal{
  animation-play-state:paused;
  transform:rotate(0deg) scale(1.08);
  border-color:var(--acc);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 0 0 4px var(--acc-soft),0 8px 20px -8px var(--acc-soft);
}
.brand:hover .seal::after{transform:rotate(20deg) translateX(220%)}
@media (prefers-reduced-motion:reduce){.seal{animation:none}}

#nav ul{display:flex;align-items:center;gap:clamp(6px,1.6vw,26px)}
#nav ul a{color:var(--txt-dim);font-size:14.5px;font-weight:500;padding:8px 2px;position:relative}
#nav ul a:not(.nav-cta)::after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:1px;background:var(--acc);transition:right .25s ease}
#nav ul a:not(.nav-cta):hover{color:var(--txt)}
#nav ul a:not(.nav-cta):hover::after{right:0}
#nav ul a[aria-current="page"]{color:var(--txt)}
#nav ul a[aria-current="page"]::after{right:0;opacity:.7}
.nav-cta{border:1px solid var(--line-strong);border-radius:999px;padding:9px 18px !important;color:var(--txt) !important;background:var(--panel);transition:border-color .2s,background .2s}
.nav-cta:hover{border-color:var(--acc);background:var(--acc-soft)}

.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:11px;background:var(--panel);padding:0;place-items:center;align-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--txt);margin:0 auto;transition:transform .28s ease,opacity .2s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.mobile-menu{
  display:none;position:fixed;inset:68px 0 0;z-index:55;
  flex-direction:column;gap:2px;padding:16px var(--pad) 26px;
  background:oklch(0.11 0.005 80 / .99);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  overflow-y:auto;
}
.mobile-menu.open{display:flex}
.mobile-menu a{color:var(--txt);font-family:var(--serif);font-size:24px;padding:13px 0;border-bottom:1px solid var(--line)}
.mobile-menu a.nav-cta{margin-top:16px;border:1px solid var(--acc);text-align:center;font-family:var(--sans);font-size:16px;padding:14px !important}