/* Modern GitHub-inspired Navbar */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  background: rgba(10, 4, 4, 0.95);
  
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  transition: all 0.3s ease;
}

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

.nav-brand svg {
  width: 2rem;
  height: 2rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.nav-logo {
  height: 2rem;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.875rem;
  border-radius: 8px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.nav-links .btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.nav-links .btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 2px 10px rgba(208, 32, 0, 0.3);
}

.nav-links .btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(208, 32, 0, 0.5);
  background: rgba(255, 255, 255, 0.06);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 2.5rem;
  height: 2.5rem;
  cursor: pointer;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  transition: all 0.3s ease;
  padding: 0;
}

.menu-toggle:hover {
  border-color: var(--primary);
}

.menu-toggle span {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: var(--text);
  margin: 3px 0;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 4, 4, 0.98);
    background: rgba(10, 4, 4, 0.98);
    
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    gap: 0.5rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .nav-links a {
    padding: 1rem 1.25rem;
    font-size: 1rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-links .btn {
    text-align: center;
    justify-content: center;
    margin-top: 0.5rem;
  }

  .nav-container {
    padding: 0 1rem;
    height: 64px;
  }
}

@media (max-width: 480px) {
  .nav-brand {
    font-size: 1.1rem;
  }

  .nav-links a {
    font-size: 0.95rem;
    padding: 0.875rem 1rem;
  }
}