/* =============================================
   SAFETAXI — Navigation
   ============================================= */

.st-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 5vw;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

.st-nav--transparent { background: transparent; }
.st-nav--solid       { background: rgba(255,255,255,0.97); box-shadow: 0 1px 0 rgba(0,0,0,0.07); backdrop-filter: blur(16px); }

.st-nav__inner {
  width: 100%; max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem;
}

/* Logo */
.st-nav__logo {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0;
}
.st-nav__logo svg { width: 36px; height: 36px; }
.st-nav__logo-text {
  font-size: 17px; font-weight: 800; letter-spacing: -0.3px;
  color: var(--dark); transition: color var(--transition);
}
.st-nav__logo-text em { font-style: normal; color: var(--orange); }
.st-nav--transparent .st-nav__logo-text { color: var(--white); }

/* Links */
.st-nav__links {
  display: flex; align-items: center; gap: 1.8rem;
  flex: 1; justify-content: center;
}
.st-nav__links a {
  font-size: 14px; font-weight: 500; color: var(--gray);
  transition: color var(--transition);
  position: relative;
}
.st-nav__links a::after {
  content: ''; position: absolute; bottom: -3px; left: 0; right: 0;
  height: 2px; background: var(--orange);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.2s ease;
}
.st-nav__links a:hover,
.st-nav__links a.active { color: var(--dark); }
.st-nav__links a:hover::after,
.st-nav__links a.active::after { transform: scaleX(1); }
.st-nav--transparent .st-nav__links a { color: rgba(255,255,255,0.6); }
.st-nav--transparent .st-nav__links a:hover,
.st-nav--transparent .st-nav__links a.active { color: white; }

/* Dropdown */
.st-nav__item { position: relative; }
.st-nav__item:hover .st-nav__dropdown { opacity: 1; pointer-events: auto; transform: translateY(0); }
.st-nav__dropdown {
  position: absolute; top: calc(100% + 16px); left: 50%; transform: translateX(-50%) translateY(-8px);
  min-width: 200px;
  background: white;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 8px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 10;
}
.st-nav__dropdown a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px; color: var(--dark) !important;
  transition: background var(--transition);
}
.st-nav__dropdown a:hover { background: var(--gray-light); }
.st-nav__dropdown a::after { display: none; }
.st-nav__dropdown .dd-icon { font-size: 16px; }

/* CTA */
.st-nav__cta { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

/* Hamburger */
.st-nav__hamburger {
  display: none; flex-direction: column; gap: 5px; padding: 8px;
  cursor: pointer;
}
.st-nav__hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--dark); border-radius: 2px;
  transition: all 0.25s;
}
.st-nav--transparent .st-nav__hamburger span { background: white; }

/* Mobile drawer */
.st-nav__drawer {
  display: none;
  position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: white; z-index: 999;
  padding: 24px 5vw;
  flex-direction: column; gap: 4px;
  overflow-y: auto;
}
.st-nav__drawer.open { display: flex; }
.st-nav__drawer a {
  font-size: 16px; font-weight: 600; color: var(--dark);
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-mid);
}
.st-nav__drawer .drawer-section-label {
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--gray);
  padding: 20px 0 6px;
}

@media (max-width: 900px) {
  .st-nav__links, .st-nav__cta .btn--ghost { display: none; }
  .st-nav__hamburger { display: flex; }
}
@media (max-width: 600px) {
  .st-nav__cta .btn--primary { display: none; }
}