/* ============================================
   NAVIGATION
   ============================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid transparent;
  transition: height var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              backdrop-filter var(--dur-base) var(--ease-out);
}

/* Over the dark cinematic hero: logo + links render in white */
.nav:not(.scrolled) .nav__logo,
.nav:not(.scrolled) .nav__links a,
.nav:not(.scrolled) .nav__burger span,
.nav:not(.scrolled) .nav__burger span::before,
.nav:not(.scrolled) .nav__burger span::after {
  color: var(--white);
}
.nav:not(.scrolled) .nav__burger span,
.nav:not(.scrolled) .nav__burger span::before,
.nav:not(.scrolled) .nav__burger span::after {
  background: var(--white);
}
.nav:not(.scrolled) .nav__links a::after { background: var(--yellow); }
.nav:not(.scrolled) .nav__ctas .btn--outline {
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}
.nav:not(.scrolled) .nav__ctas .btn--outline:hover { background: rgba(255,255,255,0.12); }

.nav.scrolled {
  height: var(--nav-height-scrolled);
  background: rgba(248, 246, 243, 0.97);
  border-bottom-color: var(--border-soft);
  box-shadow: 0 4px 20px rgba(11,42,111,0.05);
}

.nav__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-lg);
}

@media (min-width: 768px) { .nav__inner { padding: 0 var(--sp-2xl); } }

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--navy);
  flex-shrink: 0;
}
.nav__logo .mark {
  width: 36px; height: 36px;
  flex-shrink: 0;
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--sp-xl);
  list-style: none;
}

.nav__links a {
  font-size: 0.95rem;
  font-weight: var(--fw-medium);
  color: var(--ink-soft);
  position: relative;
  padding: 6px 0;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--coral);
  border-radius: 2px;
  transition: width var(--dur-base) var(--ease-out);
}
.nav__links a:hover { color: var(--navy); }
.nav__links a:hover::after { width: 100%; }
.nav__links a.active { color: var(--navy); font-weight: 600; }
.nav__links a.active::after { width: 100%; }

@media (min-width: 1024px) {
  .nav__links { display: flex; }
}

.nav__ctas {
  display: none;
  align-items: center;
  gap: var(--sp-sm);
}
@media (min-width: 1024px) { .nav__ctas { display: flex; } }

.nav__burger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
@media (min-width: 1024px) { .nav__burger { display: none; } }

.nav__burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--navy);
  position: relative;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base);
}
.nav__burger span::before, .nav__burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px; height: 2px;
  background: var(--navy);
  transition: transform var(--dur-base) var(--ease-out), top var(--dur-base) var(--ease-out);
}
.nav__burger span::before { top: -7px; }
.nav__burger span::after { top: 7px; }

.nav__burger.open span { background: transparent; }
.nav__burger.open span::before { top: 0; transform: rotate(45deg); }
.nav__burger.open span::after { top: 0; transform: rotate(-45deg); }

/* Mobile drawer */
.mobile-drawer {
  position: fixed;
  top: 0; right: 0;
  width: min(82vw, 360px);
  height: 100vh;
  background: var(--white);
  z-index: 99;
  padding: calc(var(--nav-height) + 1rem) var(--sp-lg) var(--sp-xl);
  transform: translateX(100%);
  transition: transform var(--dur-base) var(--ease-out);
  box-shadow: -10px 0 40px rgba(11,42,111,0.15);
  overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }

.mobile-drawer__links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-xs);
  margin-bottom: var(--sp-xl);
}
.mobile-drawer__links a {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--navy);
  padding: var(--sp-sm) 0;
  border-bottom: 1px solid var(--border-soft);
}

.mobile-drawer__ctas {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.scrim {
  position: fixed;
  inset: 0;
  background: rgba(11,42,111,0.35);
  z-index: 98;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out);
}
.scrim.open { opacity: 1; visibility: visible; }

body.nav-open { overflow: hidden; }