/* ===== CSS VARIABLES ===== */
:root {
  --nav-bg-color: transparent;
  --nav-text-color: #333;
  --nav-hover-color: #000;
  --nav-active-border: 1px solid #000;
  --nav-padding: 1rem 2rem;
  --nav-gap: 2rem;
  --nav-font-size: 1rem;
  --nav-transition: all 0.3s ease;
  --max-content-width: 1200px;
}
/* ===== BASE NAVBAR STYLES ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  padding: var(--nav-padding);
  z-index: 1000;
  background-color: var(--nav-bg-color);
  transition: var(--nav-transition);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: center;
}
.navbar-container {
  width: 100%;
  max-width: var(--max-content-width);
  display: flex;
  justify-content: center;
  margin: 0 auto;
}
/* ===== NAVIGATION LIST ===== */
.nav-list {
  display: flex;
  gap: var(--nav-gap);
  list-style: none;
  padding: 0;
  margin: 0;
  justify-content: center;
  align-items: center;
}
/* ===== NAVIGATION LINKS ===== */
.nav-list a {
  text-decoration: none;
  color: var(--nav-text-color);
  font-size: var(--nav-font-size);
  font-weight: 400;
  letter-spacing: 0.5px;
  transition: var(--nav-transition);
  padding: 0.5rem 1rem;
  position: relative;
  white-space: nowrap;
}
/* ===== INTERACTIVE STATES ===== */
.nav-list a:hover {
  color: var(--nav-hover-color);
}
.nav-list .active {
  border-bottom: var(--nav-active-border);
}
/* ===== HOVER ANIMATION ===== */
.nav-list a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--nav-hover-color);
  transition: var(--nav-transition);
}
.nav-list a:hover::after {
  width: calc(100% - 2rem);
}
/* ===== RESPONSIVE DESIGN ===== */
/* Large tablets and small desktops */
@media (max-width: 1024px) {
  :root {
    --nav-gap: 1.5rem;
    --nav-font-size: 0.9rem;
  }
}
/* Tablets */
@media (max-width: 768px) {
  :root {
    --nav-gap: 1rem;
    --nav-font-size: 0.8rem;
    --nav-padding: 0.8rem 1rem;
  }
}
/* Small tablets */
@media (max-width: 600px) {
  .nav-list {
    flex-wrap: wrap;
    gap: 0.8rem;
  }
}
/* Mobile phones */
@media (max-width: 480px) {
  :root {
    --nav-font-size: 0.7rem;
    --nav-gap: 0.5rem;
  }
  .nav-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  .nav-list a {
    padding: 0.3rem 0.5rem;
  }
}