/* ===== Global Styles ===== */
/* Global Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: #f9f9f9;
  color: #333;
}

/* Dark Mode */
body.dark-mode {
  background: #111;
  color: #eee;
}

body.dark-mode nav.navbar {
  background: #222;
}

body.dark-mode a {
  color: #ddd;
}

body.dark-mode canvas {
  border-color: #888;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #fff;
  padding: 1rem 2rem; /* increased top & bottom padding to make navbar taller */
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

/* Logo Size */
.navbar .logo {
  height: 70px;
  width: auto; /* ensure proportions */
  transition: height 0.2s ease; /* for day-to-night mode transition */
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.2s ease-in-out;
}

.nav-links a:hover {
  color: #2D9CDB;
}

/* Dark Mode Button */
#darkToggle {
  margin-left: 1rem;
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
}

/* reserve space for injected navbar to avoid layout shift */
#navbar {
  min-height: 64px;
  display: block;
}

/* Logo Fade Animation */
.logo {
  height: 50px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
  transition: opacity 220ms ease;
  opacity: 1;
}

#navbar .navbar {
  min-height: 64px;
  display: flex;
  align-items: center;
}


/* ===== DESKTOP NAVBAR (default) ===== */

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

#hamburger {  
  display: none;  /* hide hamburger on desktop */
}


/* ===== MOBILE NAVBAR (max-width: 768px) ===== */
@media (max-width: 768px) {

  /* Show Hamburger Icon */
  #hamburger {
    display: block;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: #333;
  }

  /* Dark Mode Hamburger */
  body.dark-mode #hamburger {
    color: white;
  }

  .nav-links {
    display: none;  /* hide nav links by default on mobile */
    flex-direction: column;
    position: absolute;
    top: 100%;
    right: 1rem;
    width: 200px;
    padding: 1rem;
    background: #fff;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    z-index: 999;
  }

  body.dark-mode .nav-links {
    background: #222;
  }

  /* Open Hamburger Menu */
  .nav-links.active {
    display: flex;
  }
}