.nav {
  position: fixed;
  top: 0; 
  left: 0; 
  width: 100%; 
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  padding: 1.25rem 0;
  border-bottom: 1px solid rgba(0, 102, 204, 0.1);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 6px 25px rgba(0,0,0,0.08);
  padding: 1rem 0;
}

.nav__container {
  display: flex; 
  justify-content: space-between; 
  align-items: center;
}

.nav__logo {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary);
  display: flex; 
  align-items: center;
  transition: all 0.3s ease;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.nav__logo:hover {
  transform: scale(1.02);
}

.nav__logo-icon { 
  margin-right: 0.5rem; 
  font-size: 1.75rem; 
  filter: drop-shadow(0 2px 4px rgba(0,102,204,0.2));
}

.nav__logo-img {
  width: 2.5rem;
  height: 2.5rem;
  margin-right: 0.75rem;
  border-radius: 8px;
  filter: drop-shadow(0 2px 4px rgba(0,102,204,0.2));
  transition: all 0.3s ease;
}

.nav__logo:hover .nav__logo-img {
  filter: drop-shadow(0 4px 8px rgba(0,102,204,0.3));
}

.nav__menu {
  display: flex; 
  list-style: none; 
  gap: 2.5rem;
}

.nav__link {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  padding: 0.5rem 0;
  color: var(--text-dark);
  letter-spacing: -0.005em;
}

.nav__link:hover, .nav__link.active { 
  color: var(--primary); 
  transform: translateY(-1px);
}

.nav__link::after {
  content: '';
  position: absolute; 
  bottom: 0; 
  left: 50%;
  transform: translateX(-50%);
  width: 0; 
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border-radius: 2px;
}

.nav__link:hover::after, .nav__link.active::after { 
  width: 100%; 
}

.nav__toggle {
  display: none;
  background: none; 
  border: none; 
  cursor: pointer;
  font-size: 1.5rem; 
  color: var(--primary);
  padding: 0.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.nav__toggle:hover {
  background: rgba(0, 102, 204, 0.1);
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .nav {
    padding: 0.75rem 0;
  }
  
  .nav__container {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    align-items: center;
  }
  
  .nav__logo {
    font-size: 1.15rem;
    min-width: 0;
    overflow: hidden;
  }
  
  .nav__logo span {
    display: inline-block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
  }
  
  .nav__logo-img {
    width: 2rem;
    height: 2rem;
    margin-right: 0.5rem;
    flex-shrink: 0;
  }
  
  .nav__menu {
    position: fixed; 
    top: 0; 
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    height: 100vh; 
    width: 280px;
    flex-direction: column; 
    align-items: center; 
    justify-content: center;
    transform: translateX(100%);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 99;
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    gap: 3rem;
    border-left: 1px solid rgba(0, 102, 204, 0.1);
  }
  
  .nav__menu.active { 
    transform: translateX(0); 
  }
  
  .nav__menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--primary-light));
  }
  
  .nav__link {
    font-size: 1.1rem;
    padding: 1rem 0;
  }
  
  .nav__toggle { 
    display: block; 
    z-index: 100; 
  }
}

/* Extra small screens */
@media (max-width: 480px) {
  .nav {
    padding: 0.5rem 0;
  }
  
  .nav__container {
    gap: 0.75rem;
  }
  
  .nav__logo {
    font-size: 1rem;
  }
  
  .nav__logo-img {
    width: 1.65rem;
    height: 1.65rem;
    margin-right: 0.35rem;
  }
  
  .nav__toggle {
    font-size: 1.5rem;
    padding: 0.25rem 0.4rem;
    flex-shrink: 0;
  }
}

/* Ultra small screens */
@media (max-width: 360px) {
  .nav__logo {
    font-size: 0.9rem;
  }
  
  .nav__logo-img {
    width: 1.5rem;
    height: 1.5rem;
    margin-right: 0.3rem;
  }
}