/* =====================================================
   NAVBAR & MOBILE MENU STYLES
   ===================================================== */

/* ─── NAVBAR ─────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all 0.35s ease;
  padding: 0 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar.transparent {
  background: transparent;
}

.navbar.scrolled {
  background: rgba(6, 16, 30, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  height: 68px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6), 0 1px 0 rgba(26, 127, 255, 0.1);
}

/* ─── LOGO ───────────────────────────────────────────── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: opacity var(--transition-fast);
  flex-shrink: 0;
}

.nav-logo:hover { opacity: 0.85; }

.nav-logo img {
  height: 52px;
  width: auto;
  transition: height 0.35s ease;
}

.navbar.scrolled .nav-logo img { height: 42px; }

/* ─── NAV LINKS ──────────────────────────────────────── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(245, 245, 245, 0.8);
  transition: color var(--transition-fast);
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* ─── NAV CTA ────────────────────────────────────────── */
.nav-cta {
  background: var(--color-primary);
  color: #ffffff !important;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-weight: 700 !important;
  letter-spacing: 0.1em !important;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast) !important;
  box-shadow: 0 2px 12px rgba(26, 127, 255, 0.25);
}

.nav-cta:hover {
  background: var(--color-primary-dark) !important;
  color: #ffffff !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(26, 127, 255, 0.4) !important;
}

.nav-cta::after { display: none !important; }

/* ─── HAMBURGER ──────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 1100;
  position: relative;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.35s ease;
  transform-origin: center;
}

/* Hamburger to X animation */
.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─── MOBILE MENU OVERLAY ────────────────────────────── */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(6, 16, 30, 0.99);
  backdrop-filter: blur(20px);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.45s cubic-bezier(0.77, 0, 0.175, 1),
              opacity 0.35s ease;
  pointer-events: none;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-menu::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-primary-light), var(--color-primary), transparent);
}

.mobile-menu::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: radial-gradient(ellipse at bottom center, rgba(26, 127, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.mobile-nav-links {
  list-style: none;
  text-align: center;
  width: 100%;
  padding: 0 40px;
}

.mobile-nav-links li {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  border-bottom: 1px solid rgba(26, 127, 255, 0.1);
}

.mobile-nav-links li:last-child { border-bottom: none; }

.mobile-menu.open .mobile-nav-links li:nth-child(1) { opacity: 1; transform: none; transition-delay: 0.1s; }
.mobile-menu.open .mobile-nav-links li:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.15s; }
.mobile-menu.open .mobile-nav-links li:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.2s; }
.mobile-menu.open .mobile-nav-links li:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.25s; }
.mobile-menu.open .mobile-nav-links li:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.3s; }
.mobile-menu.open .mobile-nav-links li:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.35s; }
.mobile-menu.open .mobile-nav-links li:nth-child(7) { opacity: 1; transform: none; transition-delay: 0.4s; }

.mobile-nav-links a {
  display: block;
  padding: 20px 0;
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-text);
  text-transform: uppercase;
  transition: color var(--transition-fast);
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active { color: var(--color-primary); }

.mobile-menu-cta {
  margin-top: 32px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease 0.45s, transform 0.4s ease 0.45s;
}

.mobile-menu.open .mobile-menu-cta {
  opacity: 1;
  transform: none;
}

.mobile-menu-footer {
  position: absolute;
  bottom: 32px;
  text-align: center;
  opacity: 0;
  transition: opacity 0.4s ease 0.5s;
}

.mobile-menu.open .mobile-menu-footer { opacity: 1; }

.mobile-menu-footer p {
  font-size: 0.78rem;
  color: var(--color-text-dim);
}

/* ─── RESPONSIVE SHOW/HIDE ───────────────────────────── */
@media (max-width: 1024px) {
  .nav-links { gap: 24px; }
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .navbar { padding: 0 5%; }
}