/* ============================================================
   EDUNOMIC — Navigation Styles
   ============================================================ */

/* ── TOP NAV ─────────────────────────────────────────────────── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  height: 72px; display: flex; align-items: center;
  background: rgba(255,255,255,.97); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}
#navbar.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,.07); }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 40px; width: 100%; display: flex; align-items: center; justify-content: space-between; }

/* Logo */
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo-mark {
  width: 36px; height: 36px; background: var(--teal);
  border-radius: 9px; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-body); font-weight: 900; font-size: 16px; color: #fff;
}
.nav-logo-name {
  font-family: var(--font-body); font-size: 19px; font-weight: 800; color: var(--navy); line-height: 1;
}
.nav-logo-name span { color: var(--teal); }
.nav-logo-tagline { font-size: 9px; color: var(--muted); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .08em; }

/* Main nav links */
.nav-menu { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }

.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  padding: 8px 14px; font-size: 14px; font-weight: 500; color: var(--navy);
  border-radius: 8px; cursor: pointer; transition: all .2s; user-select: none;
  white-space: nowrap; background: transparent; border: none;
}
.nav-link:hover, .nav-link.active { color: var(--teal); background: var(--teal-faint); }
.nav-link-arrow {
  font-size: 10px; color: var(--muted); transition: transform .2s;
  display: inline-block;
}
.nav-item:hover .nav-link-arrow,
.nav-item.open .nav-link-arrow { transform: rotate(180deg); }

/* Dropdown */
.nav-dropdown {
  position: absolute; top: calc(100% + 8px); left: 0;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-xl); box-shadow: var(--shadow-xl);
  min-width: 220px; padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: all .22s cubic-bezier(.34,1.2,.64,1);
  pointer-events: none;
}
.nav-item:hover .nav-dropdown,
.nav-item.open .nav-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0); pointer-events: all;
}
.nav-dropdown-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 10px 12px; border-radius: var(--r-md); transition: background .15s;
  cursor: pointer; color: var(--navy);
}
.nav-dropdown-item:hover { background: var(--off); }
.nav-dd-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--teal-faint); display: flex; align-items: center;
  justify-content: center; font-size: 15px; flex-shrink: 0; margin-top: 1px;
}
.nav-dd-text .nav-dd-title { font-size: 13px; font-weight: 600; }
.nav-dd-text .nav-dd-desc  { font-size: 11px; color: var(--muted); margin-top: 2px; line-height: 1.4; }

/* Mega dropdown */
.nav-mega {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(-8px);
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-xl); box-shadow: var(--shadow-xl);
  width: 680px; padding: 24px;
  opacity: 0; visibility: hidden;
  transition: all .22s cubic-bezier(.34,1.2,.64,1);
  pointer-events: none;
}
.nav-item:hover .nav-mega,
.nav-item.open .nav-mega {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); pointer-events: all;
}
.nav-mega-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 6px; }
.nav-mega-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px; border-radius: var(--r-md); transition: background .15s;
  cursor: pointer;
}
.nav-mega-item:hover { background: var(--off); }
.nav-mega-icon {
  width: 36px; height: 36px; border-radius: 9px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 17px;
}
.mega-teal   { background: var(--teal-faint); }
.mega-orange { background: var(--orange-f); }
.nav-mega-text .title { font-size: 13px; font-weight: 700; color: var(--navy); }
.nav-mega-text .desc  { font-size: 11px; color: var(--muted); line-height: 1.4; margin-top: 2px; }
.nav-mega-footer {
  margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.nav-mega-footer-cta {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--teal); cursor: pointer;
  transition: gap .2s;
}
.nav-mega-footer-cta:hover { gap: 12px; }

/* Right CTAs */
.nav-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.nav-brochure {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px; font-size: 13px; font-weight: 600;
  color: var(--navy); border: 1.5px solid var(--border);
  border-radius: var(--r-md); transition: all .2s; cursor: pointer;
  background: transparent;
}
.nav-brochure:hover { border-color: var(--teal); color: var(--teal); }
.nav-demo {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 18px; font-size: 13px; font-weight: 700;
  color: #fff; background: var(--teal); border-radius: var(--r-md);
  border: none; cursor: pointer; transition: all .2s;
}
.nav-demo:hover { background: var(--teal2); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(10,191,163,.3); }

/* ── MOBILE HAMBURGER ────────────────────────────────────────── */
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px; border: none; background: transparent;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px; background: var(--navy);
  border-radius: 2px; transition: all .3s;
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* Mobile menu */
.nav-mobile {
  position: fixed; top: 72px; left: 0; right: 0; bottom: 0; z-index: 499;
  background: var(--white); overflow-y: auto;
  transform: translateX(100%); transition: transform .3s ease;
  padding: 24px 24px 80px;
}
.nav-mobile.open { transform: translateX(0); }

.mob-section { margin-bottom: 32px; }
.mob-section-title {
  font-family: var(--font-mono); font-size: 10px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .1em; margin-bottom: 12px;
}
.mob-link {
  display: flex; align-items: center; gap: 12px;
  padding: 12px; border-radius: var(--r-md); cursor: pointer;
  transition: background .15s; color: var(--navy); margin-bottom: 2px;
}
.mob-link:hover { background: var(--off); }
.mob-link-icon { width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0; }
.mob-link-title { font-size: 14px; font-weight: 600; }
.mob-link-desc  { font-size: 11px; color: var(--muted); }
.mob-cta-row { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.mob-cta-row .btn { width: 100%; justify-content: center; }

/* ── RESPONSIVE ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .nav-menu { display: none; }
  .nav-hamburger { display: flex; }
  .nav-container { padding: 0 24px; }
}
@media (max-width: 480px) {
  .nav-logo-tagline { display: none; }
}