/* ============================================================
   AAA CREATIVE LAB — CASE PAGE TOP BAR
   One nav for every case page: the sticky top bar, the in-hero
   nav, the Services dropdown and the CTA proximity glow.

   Loaded AFTER each page's local <style>, so it overrides the
   per-page drift. The behaviour lives in case-nav.js.
   ============================================================ */

/* ---------- Sticky top bar ---------- */
.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--case-gutter, 48px);
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 0.5px solid rgba(255, 255, 255, 0.08);
  opacity: 0;
  pointer-events: none;
  transform: translateY(0);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
}
.topnav.is-active { opacity: 1; pointer-events: auto; }
.topnav.is-scrolled { background: rgba(0, 0, 0, 0.85); }
.topnav.is-hidden { transform: translateY(-100%); }

.topnav__logo, .hero__logo {
  display: block;
  aspect-ratio: 1147 / 123;
  background-image: url("assets/logo-on-dark-clean.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: left center;
  cursor: pointer;
}
.topnav__logo { height: 24px; }
.hero__logo { height: 29px; }

.topnav__right, .hero__nav-right { display: flex; align-items: center; gap: 32px; }
.topnav__links, .hero__links {
  display: flex; align-items: center; gap: 28px;
  list-style: none; margin: 0; padding: 0;
}
.topnav__links a, .hero__links a {
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper);
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-out);
}
.topnav__links a:hover, .hero__links a:hover { color: var(--amber); }

/* ---------- In-hero nav (over the hero media) ---------- */
.hero__nav {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px var(--case-gutter, 48px);
}

/* ---------- CTA buttons ---------- */
.topnav__contact, .hero__contact {
  --prox: 0;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 220ms var(--ease-out), color 220ms var(--ease-out), border-color 220ms var(--ease-out);
}
.topnav__contact {
  padding: 11px 20px;
  color: var(--paper);
  background: rgba(246, 244, 239, calc(0.04 + var(--prox) * 0.08));
  border: 1px solid rgba(246, 244, 239, calc(0.12 + var(--prox) * 0.25));
}
.hero__contact {
  padding: 13px 22px;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--paper);
}
.topnav__contact:hover { background: var(--amber); color: #1d1d1b; border-color: var(--amber); }
.hero__contact:hover { background: var(--amber); color: var(--ink); border-color: var(--amber); }
.hero__contact:active, .topnav__contact:active { transform: translateY(1px); }
.topnav__contact svg, .hero__contact svg {
  width: 14px; height: 14px;
  stroke: currentColor; stroke-width: 1.5; fill: none;
  stroke-linecap: square; stroke-linejoin: miter;
  transition: transform var(--dur-base) var(--ease-out);
}
.topnav__contact:hover svg, .hero__contact:hover svg { transform: translateX(3px); }

/* Proximity glow — driven by case-nav.js */
.topnav__contact, .hero__contact, .outro__btn {
  box-shadow:
    inset 0 0 calc(var(--prox) * 24px) rgba(234, 161, 31, calc(var(--prox) * 0.6)),
    0 0 calc(var(--prox) * 26px) rgba(234, 161, 31, calc(var(--prox) * 0.9)),
    0 0 calc(var(--prox) * 70px) rgba(234, 161, 31, calc(var(--prox) * 0.6)),
    0 0 calc(var(--prox) * 124px) rgba(234, 161, 31, calc(var(--prox) * 0.33));
}
.topnav__contact::after, .hero__contact::after, .outro__btn::after {
  content: "";
  position: absolute; inset: -18px;
  background: radial-gradient(circle at 50% 50%,
    rgba(234, 161, 31, calc(var(--prox) * 0.85)) 0%,
    rgba(234, 161, 31, calc(var(--prox) * 0.4)) 35%,
    rgba(234, 161, 31, calc(var(--prox) * 0.12)) 60%,
    rgba(234, 161, 31, 0) 80%);
  filter: blur(7px);
  pointer-events: none;
  opacity: var(--prox);
  transition: opacity 220ms var(--ease-out);
  z-index: -1;
}

/* ---------- Services dropdown ---------- */
.has-sub { position: relative; }
.has-sub > a {
  display: inline-flex; align-items: center; gap: 6px;
  cursor: pointer;
}
.has-sub > a::after {
  content: "";
  width: 5px; height: 5px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  opacity: 0.65;
  transition: transform 220ms var(--ease-out), opacity 220ms var(--ease-out);
}
.has-sub:hover > a::after,
.has-sub:focus-within > a::after {
  transform: rotate(225deg) translate(-1px, -1px);
  opacity: 1;
}
.has-sub__menu {
  position: absolute;
  top: calc(100% + 28px);
  left: 50%;
  transform: translate(-50%, -6px);
  min-width: 200px;
  background: rgba(15, 15, 17, 0.96);
  border: 0.5px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  list-style: none; margin: 0; padding: 8px 0;
  opacity: 0; pointer-events: none;
  transition: opacity 220ms var(--ease-out), transform 220ms var(--ease-out);
  z-index: 200;
}
.has-sub__menu::before {
  content: "";
  position: absolute;
  top: -38px; left: 0; right: 0; height: 38px;
}
.has-sub:hover > .has-sub__menu,
.has-sub:focus-within > .has-sub__menu {
  opacity: 1; pointer-events: auto;
  transform: translate(-50%, 0);
}
.has-sub__menu li { list-style: none; padding: 0; }
.has-sub__menu a {
  display: block;
  padding: 12px 22px;
  font-family: var(--font-accent);
  font-weight: 500; font-size: 11px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--paper);
  text-decoration: none; white-space: nowrap;
  transition: background 180ms var(--ease-out), color 180ms var(--ease-out);
}
.has-sub__menu a:hover { background: rgba(234, 161, 31, 0.12); color: var(--amber); }
/* Hero variant sits over the photo — drop it lower, glassier. */
.hero__nav .has-sub__menu { top: calc(100% + 38px); }

@media (max-width: 720px) {
  .topnav { padding: 14px var(--case-gutter-sm, 24px); }
  .hero__nav { padding: 18px var(--case-gutter-sm, 24px); }
  .topnav__links, .hero__links { display: none; }
}