/* ============================================================
   NAVBAR COMPONENT — cosynctech-v5
   ============================================================ */

/* ── NAV BASE ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  height: 72px; padding: 0 var(--s-8);
  display: flex; align-items: center; justify-content: space-between;
  transition: background .4s, border-color .4s, height .35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(6,9,18,.92);
  backdrop-filter: blur(28px) saturate(180%);
  border-color: var(--border);
  height: 62px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo-mark {
  width: 36px; height: 36px; border-radius: 9px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--fb); font-weight: 800; font-size: .7rem; color: #fff;
  letter-spacing: .02em;
}
.nav-logo-text { font-family: var(--fh); font-size: 1.2rem; font-weight: 700; color: var(--text-1); letter-spacing: -.01em; }
.nav-logo-text span { color: var(--c-blue-light); }

/* ── NAV LINKS ── */
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-link {
  font-size: .85rem; font-weight: 500; color: var(--text-3);
  padding: 8px 14px; border-radius: var(--r-sm);
  transition: color var(--dur), background var(--dur);
  position: relative;
}
.nav-link:hover, .nav-link.active { color: var(--text-1); background: rgba(255,255,255,.06); }

/* Dropdown */
.nav-item { position: relative; }
.nav-dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%);
  background: var(--surface-2); border: 1px solid var(--border-2);
  border-radius: var(--r-lg); padding: var(--s-3);
  min-width: 220px; opacity: 0; visibility: hidden;
  transform: translateX(-50%) translateY(-8px);
  transition: opacity .25s, transform .25s, visibility .25s;
  box-shadow: var(--shadow-xl);
}
.nav-item:hover .nav-dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-dropdown-item {
  display: flex; align-items: center; gap: var(--s-3);
  padding: 10px 14px; border-radius: var(--r);
  font-size: .84rem; color: var(--text-2);
  transition: background var(--dur), color var(--dur);
}
.nav-dropdown-item:hover { background: var(--surface-3); color: var(--text-1); }
.nav-dropdown-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: rgba(37,99,235,.12); border: 1px solid rgba(37,99,235,.18);
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem; flex-shrink: 0;
}

/* ── NAV ACTIONS ── */
.nav-actions { display: flex; align-items: center; gap: var(--s-3); }

/* ── HAMBURGER ── */
.nav-ham {
  display: none; flex-direction: column; gap: 5px;
  padding: 8px; cursor: pointer;
}
.nav-ham span { display: block; width: 22px; height: 1.5px; background: var(--text-1); border-radius: 2px; transition: .3s; }

/* ── MOBILE MENU ── */
.nav-mobile {
  position: fixed; inset: 0; z-index: 895;
  background: var(--bg-2); display: flex; flex-direction: column;
  padding: 100px var(--s-8) var(--s-8);
  opacity: 0; visibility: hidden; transition: .35s;
}
.nav-mobile.open { opacity: 1; visibility: visible; }
.nav-mobile a {
  font-family: var(--fh); font-size: 1.8rem; font-weight: 700;
  color: var(--text-1); padding: 14px 0; border-bottom: 1px solid var(--border);
  transition: color .2s;
}
.nav-mobile a:hover { color: var(--c-blue-light); }
.nav-mobile .nav-mobile-cta { margin-top: var(--s-8); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) { .nav-links { display: none; } .nav-ham { display: flex; } }
@media (max-width: 768px) { .nav-actions .btn { display: none; } .nav-actions .nav-link { display: none; } }