/* --- Navbar --- */
.navbar {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-color);
  border-bottom: var(--border-width) solid var(--border-color);
  padding: 16px 0;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-size: 1.5rem;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 700;
  background-color: var(--accent-primary);
  background-image: linear-gradient(
    115deg,
    transparent 0%,
    transparent 40%,
    rgba(255, 255, 255, 0.6) 50%,
    transparent 60%,
    transparent 100%
  );
  background-size: 300% 100%;
  background-position: 100% 0;
  color: #000;
  padding: 4px 12px;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-position 0s;
  position: relative;
  user-select: none;
  -webkit-user-select: none;
}

.brand:hover,
.brand.active {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0px var(--border-color);
  background-position: 0% 0;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-position 0.6s ease-out;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-link {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 1.1rem;
  padding: 8px 16px;
  border: var(--border-width) solid transparent;
  border-radius: calc(var(--border-radius) / 1.5);
  transition: all var(--transition-fast);
  user-select: none;
  -webkit-user-select: none;
}

.nav-link:hover,
.nav-link.active {
  background-color: var(--accent-secondary);
  color: #000;
  border-color: var(--border-color);
  box-shadow: var(--shadow-sm);
  transform: translate(-2px, -2px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: var(--card-bg);
  border: var(--border-width) solid var(--border-color);
  border-radius: calc(var(--border-radius) / 2);
  padding: 10px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.1s ease;
}

.hamburger:active {
  transform: scale(0.9);
}

.hamburger .bar {
  width: 24px;
  height: 3px;
  background-color: var(--text-main);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  bottom: 0;
  background-color: var(--bg-color);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transform: translateX(100%);
  transition: transform 0.3s ease-in-out;
}

.mobile-menu.active {
  transform: translateX(0);
}

.close-menu {
  position: absolute;
  top: 24px;
  right: 24px;
  background: var(--accent-secondary);
  border: var(--border-width) solid var(--border-color);
  border-radius: calc(var(--border-radius) / 2);
  color: #000;
  font-size: 2rem;
  width: 48px;
  height: 48px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.1s ease;
}

.close-menu:active {
  transform: scale(0.9);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 32px;
  text-align: center;
}

.mobile-link {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.4s var(--transition-bounce),
    transform 0.4s var(--transition-bounce),
    color var(--transition-fast);
  user-select: none;
  -webkit-user-select: none;
}

.mobile-menu.active .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.active .mobile-link:nth-child(1) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-link:nth-child(2) { transition-delay: 0.3s; }
.mobile-menu.active .mobile-link:nth-child(3) { transition-delay: 0.4s; }

.mobile-link:hover { color: var(--accent-primary); }
.mobile-link:active {
  color: var(--accent-secondary);
  transform: translateX(15px);
  transition: transform 0.1s ease, color 0.1s ease;
}

/* Responsive Navbar */
@media (max-width: 768px) {
  .navbar {
    position: static;
  }
  .nav-links {
    display: none;
  }
  .hamburger {
    display: flex;
  }
}