/* =========================
   Modular Navbar CSS
   Can be reused across projects
========================= */

/* Root color variables (optional, can be overridden) */
:root {
  --nav-primary: #4CAF50;
  --nav-bg: #1e293b;
  --nav-text: #ffffff;
  --nav-radius: 12px;
  --nav-transition: 0.3s ease;
}

/* Navbar container */
.navbar {
  background: var(--nav-bg);
  color: var(--nav-text);
  display: flex;
  align-items: center;
  justify-content: center; /* centers links on large screens */
  padding: 0.75rem 1rem;
  position: relative; /* needed for dropdown positioning */
  font-family: sans-serif;
}

/* Navbar links list */
.navbar ul {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Navbar links */
.navbar a {
  color: var(--nav-text);
  text-decoration: none;
  font-weight: 500;
  display: inline-block;
  transition: color var(--nav-transition);
}

.navbar a:hover {
  color: var(--nav-primary);
}

/* Hamburger button */
.navbar #menu-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  color: var(--nav-text);
  cursor: pointer;
}

/* =========================
   Mobile styles
========================= */
@media (max-width: 768px) {
  .navbar {
    justify-content: space-between; /* hamburger left, links hidden by default */
  }

  .navbar #menu-toggle {
    display: block;
  }

  .navbar ul {
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    max-height: 0;        /* collapsed by default */
    overflow: hidden;
    background: var(--nav-bg);
    text-align: center;
    transition: max-height var(--nav-transition);
    padding: 0;
  }

  .navbar.active ul {
    max-height: 500px;    /* expand to show all items */
    padding: 1rem 0;
  }

  .navbar ul li {
    padding: 0.5rem 0;
  }

  .navbar ul li a {
    display: block;
    width: 100%;
  }
}