/* ============================================================
   NAVIGATION
============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-100);
  transition: var(--transition);
}
.nav.scrolled {
  box-shadow: var(--shadow-md); background: rgba(255,255,255,0.98);
}

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px; padding: 0 1.5rem; max-width: 1400px; margin: 0 auto;
}

.nav-logo {
  display: flex; align-items: center; gap: 0.6rem; text-decoration: none;
}
.nav-logo-icon {
  width: 40px; height: 40px; background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  color: white; font-size: 1.1rem; font-weight: 800; font-family: var(--font-heading);
  box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}
.nav-logo-text {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.5px;
}
.nav-logo-text span { color: var(--primary); }

.nav-links {
  display: flex; align-items: center; gap: 0.25rem;
}

.nav-link {
  padding: 0.5rem 0.85rem; border-radius: var(--radius-sm);
  font-family: var(--font-heading); font-size: 0.88rem; font-weight: 500;
  color: var(--gray-600); transition: var(--transition-fast);
  position: relative; white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary); background: var(--primary-light);
}

.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  position: absolute; top: calc(100% + 0.5rem); left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl); border: 1px solid var(--gray-100);
  padding: 0.75rem; min-width: 220px; opacity: 0; visibility: hidden;
  transition: var(--transition); z-index: 100;
}
.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.nav-dropdown-item {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.65rem 1rem; border-radius: var(--radius-sm);
  font-size: 0.88rem; font-weight: 500; color: var(--gray-700);
  transition: var(--transition-fast);
}
.nav-dropdown-item:hover {
  background: var(--primary-light); color: var(--primary);
}
.nav-dropdown-item i { width: 1.2rem; color: var(--accent); font-size: 0.9rem; }

.nav-actions { display: flex; align-items: center; gap: 0.75rem; }
.nav-demo-btn {
  background: var(--primary); color: white; padding: 0.5rem 1.25rem;
  border-radius: var(--radius-md); font-family: var(--font-heading);
  font-size: 0.88rem; font-weight: 600; transition: var(--transition);
  border: none; cursor: pointer; white-space: nowrap;
}
.nav-demo-btn:hover {
  background: var(--primary-dark); color: white; transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.3);
}

.hamburger {
  display: none; flex-direction: column; gap: 4px;
  cursor: pointer; padding: 0.5rem; border-radius: var(--radius-sm);
  background: transparent; border: none;
}
.hamburger span {
  display: block; width: 22px; height: 2px; background: var(--secondary);
  border-radius: 2px; transition: var(--transition);
}

.mobile-menu {
  display: none; position: fixed; inset: 70px 0 0 0;
  background: var(--white); z-index: 999; overflow-y: auto;
  padding: 1.5rem; flex-direction: column; gap: 0.5rem;
}
.mobile-menu.open { display: flex; }
.mobile-nav-link {
  display: block; padding: 0.85rem 1rem; border-radius: var(--radius-md);
  font-family: var(--font-heading); font-size: 1rem; font-weight: 500;
  color: var(--gray-700); transition: var(--transition-fast);
  border-bottom: 1px solid var(--gray-100);
}
.mobile-nav-link:hover { background: var(--primary-light); color: var(--primary); }

/* Hamburger → X animation */
.hamburger.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Show hamburger only on mobile */
@media (max-width: 768px) {
  .nav-links,
  .nav-actions .btn-secondary,
  .nav-actions .btn-primary {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Keep only hamburger visible in actions */
  .nav-actions {
    gap: 0;
  }
}
.demo-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:0.4rem;
  white-space:nowrap;                              /* never wraps to 2 lines */
  font-family:'Poppins',sans-serif;
  font-weight:600;
  /* fluid sizing — scales smoothly between screen sizes */
  font-size:clamp(0.8rem, 1.6vw, 0.95rem);
  padding:clamp(9px, 1.4vw, 13px) clamp(14px, 2.4vw, 26px);
  border-radius:12px;
}

.demo-btn i{
  font-size:0.82rem;
  flex-shrink:0;
}

/* TABLET: slightly tighter */
@media (max-width:768px){
  .demo-btn{
    font-size:0.85rem;
    padding:10px 18px;
  }
}

/* MOBILE: hide the text, show only the icon (compact icon button) */
@media (max-width:480px){
  .demo-btn .btn-label{ display:none; }
  .demo-btn{
    padding:11px;
    width:42px;
    height:42px;
    border-radius:10px;
  }
  .demo-btn i{ font-size:1rem; margin:0; }
}