/* ============================================================
   NAV — global navigation with dynamic Free Content dropdown
   ============================================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(253, 250, 245, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease);
}
.nav.scrolled {
  border-color: var(--c-border);
  box-shadow: 0 2px 16px rgba(0,0,0,.06);
}

.nav__inner {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
}

/* ── Logo ─────────────────────────────────────────────────── */
.nav__logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  flex-shrink: 0;
}
.nav__logo-name {
  font-family: var(--f-display);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--c-ink);
  letter-spacing: -.01em;
}
.nav__logo-tag {
  font-family: var(--f-italic);
  font-style: italic;
  font-size: var(--fs-xs);
  color: var(--c-green);
  letter-spacing: .04em;
}

/* ── Desktop links ────────────────────────────────────────── */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  flex: 1;
  justify-content: center;
}
.nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-ink-mid);
  border-radius: var(--r-sm);
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
  white-space: nowrap;
}
.nav__link:hover,
.nav__link.active { color: var(--c-green); }
.nav__link:hover { background: var(--c-green-pale); }

.nav__link-chevron {
  width: 14px;
  height: 14px;
  transition: transform var(--t-fast) var(--ease);
  color: var(--c-ink-light);
}
.nav__item:hover .nav__link-chevron,
.nav__item.open  .nav__link-chevron { transform: rotate(180deg); color: var(--c-green); }

/* ── Dropdown ─────────────────────────────────────────────── */
.nav__item { position: relative; }

.nav__dropdown {
  position: absolute;
  top: 100%;            /* flush — no gap so cursor stays hot */
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 240px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
  /* 10px top padding = invisible bridge between button and panel */
  padding-top: 10px;
}
.nav__item.open .nav__dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Visible white panel rendered via ::after so padding-top stays transparent */
.nav__dropdown::after {
  content: '';
  position: absolute;
  top: 10px; left: 0; right: 0; bottom: 0;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  box-shadow: var(--sh-lg);
  z-index: -1;
}

/* Arrow tip */
.nav__dropdown::before {
  content: '';
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px; height: 12px;
  background: var(--c-white);
  border-left: 1px solid var(--c-border);
  border-top: 1px solid var(--c-border);
  z-index: 1;
}

.nav__dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-5);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-ink-mid);
  position: relative;
  z-index: 1;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.nav__dropdown-item:hover {
  background: var(--c-green-pale);
  color: var(--c-green);
}
.nav__dropdown-item svg {
  width: 16px; height: 16px;
  color: var(--c-green-light);
  flex-shrink: 0;
}
/* Emoji section icons */
.nav__dropdown-item span[style] {
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  font-size: 1rem;
  line-height: 1;
}

/* Divider inside dropdown (before Free Resources) */
.nav__dropdown-divider {
  height: 1px;
  background: var(--c-border);
  margin: var(--sp-2) var(--sp-4);
  position: relative;
  z-index: 1;
}

/* Free Resources item — slightly different style */
.nav__dropdown-item--resources {
  color: var(--c-ochre);
  font-weight: 600;
}
.nav__dropdown-item--resources:hover {
  background: var(--c-ochre-light);
  color: #7a5c00;
}
.nav__dropdown-item--resources svg { color: var(--c-ochre); }

/* Loading skeleton for dynamic items */
.nav__dropdown-skeleton {
  padding: var(--sp-3) var(--sp-5);
  display: flex; align-items: center; gap: var(--sp-3);
  position: relative;
  z-index: 1;
}
.nav__dropdown-skeleton span {
  height: 12px;
  border-radius: var(--r-full);
  background: var(--c-border);
  animation: shimmer 1.4s ease infinite;
}
@keyframes shimmer {
  0%, 100% { opacity: .5; }
  50%       { opacity: 1; }
}

/* ── Right side: lang + CTA ───────────────────────────────── */
.nav__right {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-shrink: 0;
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  background: var(--c-cream-dark);
  border-radius: var(--r-full);
  padding: 2px;
  gap: 2px;
}
.lang-btn {
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--c-ink-light);
  transition: all var(--t-fast) var(--ease);
}
.lang-btn.active {
  background: var(--c-white);
  color: var(--c-green);
  box-shadow: var(--sh-sm);
}

/* ── Mobile hamburger ─────────────────────────────────────── */
.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  padding: 6px;
  border-radius: var(--r-sm);
  transition: background var(--t-fast) var(--ease);
}
.nav__burger:hover { background: var(--c-green-pale); }
.nav__burger span {
  display: block;
  height: 2px;
  background: var(--c-ink);
  border-radius: var(--r-full);
  transition: transform var(--t-mid) var(--ease), opacity var(--t-mid) var(--ease), width var(--t-mid) var(--ease);
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile menu ──────────────────────────────────────────── */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  z-index: 99;   /* below nav bar (100) but above all page content + iframes */
  background: var(--c-cream);
  border-top: 1px solid var(--c-border);
  padding: var(--sp-4) var(--gutter) var(--sp-8);
  max-height: calc(100dvh - var(--nav-h));
  overflow-y: auto;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
}
.nav__mobile.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.nav__mobile-link {
  display: block;
  padding: var(--sp-4) 0;
  font-size: var(--fs-md);
  font-weight: 500;
  color: var(--c-ink);
  border-bottom: 1px solid var(--c-border-light);
  transition: color var(--t-fast) var(--ease);
}
.nav__mobile-link:hover { color: var(--c-green); }
.nav__mobile-section {
  padding: var(--sp-3) 0 var(--sp-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-ink-light);
}
.nav__mobile-sublink {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fs-sm);
  color: var(--c-ink-mid);
  border-radius: var(--r-sm);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.nav__mobile-sublink:hover {
  background: var(--c-green-pale);
  color: var(--c-green);
}
.nav__mobile-cta {
  margin-top: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

/* ── Responsive breakpoint ────────────────────────────────── */
@media (max-width: 1024px) {
  .nav__links { display: none; }
  .nav__right .btn { display: none; }
  .nav__burger { display: flex; }
  .nav__mobile { display: block; }
}