/* =========================================================
   Arx — marketing chrome (nav + announce + footer)
   shared across Home / Platform / Connectors
   ========================================================= */

/* announcement strip */
.announce {
  border-bottom: 1px solid var(--rule);
  background: #FAF8F3;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-2);
}
.announce-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex; align-items: center; justify-content: space-between;
  height: 36px;
}
.announce-left { display: flex; align-items: center; gap: 10px; }
.announce-left .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(181,74,43,.12);
}
.announce-left a { text-decoration: underline; text-decoration-color: var(--rule-2); text-underline-offset: 3px; }
.announce-right { display: flex; gap: 16px; white-space: nowrap; color: var(--ink-3); }

/* nav */
.mk-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-sans);
}
.mk-nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: 64px;
  gap: 40px;
}
.mk-logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 420;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.mk-logo sup {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  margin-left: 2px;
  font-weight: 500;
  transform: translateY(-6px);
  display: inline-block;
}
.mk-logo-mark {
  width: 22px; height: 22px;
  display: inline-grid; place-items: center;
}
.mk-nav-links {
  display: flex;
  gap: 28px;
  justify-self: center;
}
.mk-nav-links a {
  font-family: var(--font-sans);
  font-size: 13.5px;
  color: var(--ink-2);
  letter-spacing: -0.005em;
  padding: 6px 0;
  position: relative;
}
.mk-nav-links a:hover { color: var(--ink); }
.mk-nav-links a.active { color: var(--ink); }
.mk-nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -21px; height: 1px; background: var(--ink);
}
.mk-nav-cta { display: flex; gap: 14px; align-items: center; }
.mk-nav-cta .signin {
  font-size: 13.5px;
  color: var(--ink-2);
  padding-right: 14px;
  border-right: 1px solid var(--rule);
  font-family: var(--font-sans);
  white-space: nowrap;
}
.mk-nav-cta .signin:hover { color: var(--ink); }
.mk-nav-cta .btn { height: 34px; padding: 0 14px; font-size: 13px; }

/* ── Mobile hamburger toggle (injected by mobile-nav.js) ── */
.mk-nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-2);
  border-radius: 2px;
  cursor: pointer;
  padding: 0;
}
.mk-nav-toggle:hover { color: var(--ink); border-color: var(--rule-2); }
.mk-nav-toggle .hmb { width: 20px; height: 20px; display: block; }
.mk-nav-toggle .hmb path {
  transform-origin: 10px 10px;
  transition: transform .2s var(--ease), opacity .15s var(--ease);
}
.mk-nav-toggle[aria-expanded="true"] .hmb .l1 { transform: translateY(5px) rotate(45deg); }
.mk-nav-toggle[aria-expanded="true"] .hmb .l2 { opacity: 0; }
.mk-nav-toggle[aria-expanded="true"] .hmb .l3 { transform: translateY(-5px) rotate(-45deg); }

/* ── Mobile menu panel (injected) ── */
.mk-nav-mobile {
  display: none;
  position: absolute; left: 0; right: 0; top: 100%;
  background: rgba(255,255,255,0.98);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rule);
  box-shadow: 0 16px 24px -16px rgba(21,20,18,0.12);
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  z-index: 49;
}
.mk-nav-mobile.open { display: block; }
.mk-nav-mobile-inner {
  padding: 12px var(--gutter) 20px;
  display: flex; flex-direction: column;
}
.mk-nav-mobile a {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  color: var(--ink);
  letter-spacing: -0.01em;
  border-bottom: 1px solid var(--rule);
}
.mk-nav-mobile a.active { color: var(--ink); font-weight: 500; }
.mk-nav-mobile-cta {
  display: flex; flex-direction: column; gap: 10px;
  padding-top: 16px;
}
.mk-nav-mobile-cta a { border: 0; }
.mk-nav-mobile-cta .signin {
  padding: 10px 0;
  border: 0;
  color: var(--ink-2);
  font-size: 15px;
}
.mk-nav-mobile-cta .btn {
  display: inline-flex;
  width: 100%;
  height: 44px;
  justify-content: center;
  font-size: 14px;
  padding: 0 16px;
  border-bottom: 0;
}

body.nav-open { overflow: hidden; }

@media (max-width: 900px) {
  .announce-right { display: none; }
  .mk-nav-links { display: none; }
  .mk-nav-inner {
    grid-template-columns: auto 1fr auto;
    gap: 16px;
    height: 60px;
  }
  .mk-nav-cta .signin { display: none; }
  .mk-nav-cta .btn { height: 36px; padding: 0 12px; font-size: 12.5px; }
  .mk-nav-toggle { display: inline-flex; }
  .mk-logo { font-size: 18px; }
}
@media (max-width: 520px) {
  .mk-nav-cta { display: none; }
  .mk-nav-inner { grid-template-columns: 1fr auto; }
  .announce-inner { font-size: 11px; }
}