/* ============== NAV ============== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 14px var(--pad-page);
  background: color-mix(in oklab, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: 1400px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px;
}
.nav__brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: var(--type-small);
}
.nav__mark {
  width: 22px; height: 22px; border-radius: 4px;
  background: var(--ink); position: relative;
  display: inline-block;
}
.nav__mark::before {
  content: ""; position: absolute; inset: 5px 4px auto 4px; height: 2px;
  background: var(--accent);
}
.nav__mark::after {
  content: ""; position: absolute; inset: auto 4px 5px 4px; height: 2px;
  background: var(--bg);
}
.nav__brand-name { font-weight: 500; }
.nav__brand-meta { color: var(--ink-faint); font-size: var(--type-micro); letter-spacing: 0.08em; }

.nav__links {
  display: flex; align-items: center; gap: 4px;
}
.nav__links a {
  padding: 8px 14px;
  font-family: var(--font-mono); font-size: var(--type-small);
  color: var(--ink-muted);
  border-radius: 999px;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
  position: relative;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a.active { color: var(--ink); }
.nav__links a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px;
  height: 1px; background: var(--accent);
}
.nav__cta {
  display: inline-flex !important; align-items: center; gap: 8px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  margin-left: 8px;
}
.nav__cta-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--ok) 50%, transparent);
  animation: pulse 2s var(--ease) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in oklab, var(--ok) 50%, transparent); }
  70%  { box-shadow: 0 0 0 6px color-mix(in oklab, var(--ok) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--ok) 0%, transparent); }
}

@media (max-width: 720px) {
  .nav__brand-meta, .nav__links a:not(.nav__cta) { display: none; }
}

/* Lang toggle */
.lang-toggle {
  display: inline-flex; align-items: center;
  margin: 0 6px 0 4px;
  padding: 4px 8px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--bg-elev);
  font-size: 11px;
  letter-spacing: 0.06em;
}
.lang-toggle button {
  all: unset;
  cursor: pointer;
  padding: 2px 6px;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-weight: 600;
  border-radius: 999px;
  transition: color 140ms var(--ease), background 140ms var(--ease);
}
.lang-toggle button:hover { color: var(--ink); }
.lang-toggle button.active {
  color: var(--bg);
  background: var(--accent);
}
.lang-toggle__sep {
  color: var(--ink-faint);
  opacity: .5;
  padding: 0 1px;
}
@media (max-width: 720px) {
  .lang-toggle { margin: 0 4px; padding: 3px 6px; }
}

/* ============== FOOTER ============== */
.foot {
  margin-top: var(--pad-section);
  padding: 48px var(--pad-page) 32px;
  border-top: 1px solid var(--line);
  background: var(--bg-elev);
}
.foot__grid {
  max-width: 1400px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  align-items: start;
}
.foot__col h4 { font-family: var(--font-mono); font-size: var(--type-micro); text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-faint); margin-bottom: 14px; font-weight: 500; }
.foot__col a { display: block; padding: 4px 0; color: var(--ink-muted); font-size: 14px; transition: color var(--dur) var(--ease); }
.foot__col a:hover { color: var(--accent); }
.foot__brand { max-width: 420px; }
.foot__brand p { color: var(--ink-muted); font-size: 14px; margin-top: 12px; }
.foot__bottom {
  max-width: 1400px; margin: 40px auto 0;
  padding-top: 20px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: var(--type-micro); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint);
}
.foot__bottom .time { display: inline-flex; align-items: center; gap: 6px; }
@media (max-width: 720px) {
  .foot__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}