/* ══════════════════════════════════════════════════════
   DUORI — Shared Nav CSS
   Loaded by every page. Cached 1 year on Netlify CDN.
   ══════════════════════════════════════════════════════ */

/* ── CSS variables (nav only) ── */
:root {
  --ink: #1E3257;
  --dark--green: #143d3a;
  --dark--green2: #1b524e;
  --yellow: #dfb126;
  --off: #fafaf8;
  --white: #ffffff;
  --border: rgba(255, 255, 255, .08);

  /* ── Typography Variables ── */
  --font-family-nav: 'Manrope', 'Inter', sans-serif;
  
  --announcement-font-size: 13px;
  --announcement-font-weight: 500;
  
  --nav-desktop-font-size: 13px;
  --nav-desktop-font-weight: 500;
  
  --nav-mobile-font-size: 15px;
  --nav-mobile-font-weight: 500;
  
  --nav-cta-font-size: 12px;
  --nav-cta-font-weight: 700;
}

/* ── Skip link (accessibility) ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: #143d3a;
  color: #fff;
  padding: 12px 20px;
  z-index: 9999;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  top: 0;
}

/* ── Site header wrapper ── */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  /* Reserve space to prevent FOUC layout shift */
  min-height: 104px;
}

/* ── Announcement bar ── */
#announcement-bar {
  height: 36px;
  background: #fff;
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-family-nav);
  font-size: var(--announcement-font-size);
  font-weight: var(--announcement-font-weight);
  letter-spacing: .3px;
}

/* ── Main nav ── */
#nav {
  position: relative;
  z-index: 999;
  height: 68px;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background .4s, box-shadow .4s;
}

#nav.solid {
  background: var(--off);
  backdrop-filter: blur(20px);
}

.nav-logo {
  font-family: var(--font-family-nav);
  font-size: 23px;
  font-weight: 900;
  letter-spacing: 1px;
  color: var(--ink);
  text-decoration: none;
  transition: color .4s;
}

/* ── Dropdown nav items ── */
.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav-item {
  position: relative;
}

/* Bridge gap so mouse can travel to dropdown without it closing */
.nav-item::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 0;
  right: 0;
  height: 20px;
}

.nav-item>a {
  display: flex;
  align-items: center;
  gap: 3px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-family-nav);
  font-size: var(--nav-desktop-font-size);
  font-weight: var(--nav-desktop-font-weight);
  transition: color .2s;
  padding: 6px 10px;
  border-radius: 8px;
}

.nav-item>a:hover {
  color: var(--dark--green);
  background: rgba(20, 61, 58, .06);
}

.nav-chevron {
  font-size: 8px;
  transition: transform .2s;
  display: inline-block;
  opacity: .5;
}

.nav-item:hover .nav-chevron,
.nav-item.open .nav-chevron {
  transform: rotate(180deg);
}

/* ── Dropdown panel ── */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 20px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: #fff;
  border: 1px solid rgba(0, 0, 0, .08);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .13);
  padding: 8px;
  min-width: 230px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease, transform .2s ease;
  z-index: 1001;
}

.nav-item:hover .nav-dropdown,
.nav-item.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: 9px 14px;
  border-radius: 10px;
  color: #1a2a3a;
  font-family: var(--font-family-nav);
  font-size: var(--nav-desktop-font-size);
  font-weight: var(--nav-desktop-font-weight);
  text-decoration: none;
  transition: background .15s, color .15s;
  white-space: nowrap;
}

.nav-dropdown a:hover {
  background: rgba(20, 61, 58, .07);
  color: var(--dark--green);
}

.nav-dd-divider {
  height: 1px;
  background: rgba(0, 0, 0, .07);
  margin: 6px 8px;
}

.nav-dd-cta {
  background: var(--dark--green) !important;
  color: #fff !important;
  font-weight: 600 !important;
  text-align: center;
  margin-top: 2px;
}

.nav-dd-cta:hover {
  background: var(--dark--green2) !important;
  color: #fff !important;
}

/* ── LEARN: wide 2-column dropdown ── */
.nav-dropdown--learn {
  min-width: 500px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  left: 0;
  transform: translateX(-20%) translateY(-6px);
}

.nav-item:hover .nav-dropdown--learn,
.nav-item.open .nav-dropdown--learn {
  transform: translateX(-20%) translateY(0);
}

.nav-dd-col {
  padding: 4px;
}

.nav-dd-heading {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(30, 50, 87, .4);
  padding: 8px 14px 2px;
}

.nav-dropdown--learn .nav-dd-all {
  grid-column: 1 / -1;
  margin: 4px 4px 0;
}

.nav-dropdown--learn .nav-dd-all a {
  text-align: center;
  font-weight: 600;
  background: rgba(20, 61, 58, .06);
  color: var(--dark--green);
  border-radius: 10px;
}

.nav-dropdown--learn .nav-dd-all a:hover {
  background: var(--dark--green);
  color: #fff;
}

/* ── Nav actions (CTA + hamburger) ── */
.nav-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.nav-cta {
  background: var(--dark--green);
  color: var(--white);
  padding: 10px 22px;
  border-radius: 100px;
  font-family: var(--font-family-nav);
  font-size: var(--nav-cta-font-size);
  font-weight: var(--nav-cta-font-weight);
  letter-spacing: .5px;
  text-decoration: none;
  transition: all .2s;
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--dark--green2);
  transform: scale(1.03);
}

#nav.solid .nav-cta {
  background: var(--yellow);
  color: var(--ink);
}

#nav.solid .nav-cta:hover {
  background: var(--ink);
  color: var(--white);
}

/* ── Transparent state: white text/icons ── */
#nav:not(.solid) .nav-logo {
  color: var(--white);
}

#nav:not(.solid) .nav-item>a {
  color: var(--white);
}

#nav:not(.solid) .nav-item>a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, .12);
}

#nav:not(.solid) .nav-hamburger span {
  background: var(--white);
}

/* ── Hamburger ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all .3s;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile menu ── */
.mobile-menu {
  position: fixed;
  top: 104px;
  left: 0;
  right: 0;
  background: rgba(10, 14, 20, .97);
  backdrop-filter: blur(20px);
  z-index: 998;
  display: flex;
  flex-direction: column;
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
}

.mobile-menu.open {
  max-height: 500px;
  padding: 8px 0 16px;
  overflow-y: auto;
}

.mobile-menu a {
  color: rgba(255, 255, 255, .75);
  text-decoration: none;
  font-family: var(--font-family-nav);
  font-size: var(--nav-mobile-font-size);
  font-weight: var(--nav-mobile-font-weight);
  padding: 14px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  transition: color .2s;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.mobile-menu a:last-child {
  border-bottom: none;
  color: #a4d60d;
  font-weight: 600;
}

.menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 997;
  background: rgba(0, 0, 0, .4);
}

.menu-overlay.open {
  display: block;
}

/* ── Responsive breakpoint ── */
@media (max-width: 900px) {
  #nav {
    padding: 0 20px;
  }

  .nav-links,
  .nav-shop {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-item>a .nav-chevron {
    display: none;
  }

  .nav-dropdown {
    display: none !important;
  }
}