:root {
  --primary-color: #111827;
  --secondary-color: #374151;
  --accent-color: #2563eb;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --background: #ffffff;
  --background-alt: #f9fafb;
  --border-color: #e5e7eb;
  --nav-height: 72px;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--background);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 32px);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 20px;
  z-index: 1001;
}

.logo-icon {
  width: 32px;
  height: 32px;
  stroke-width: 2;
}

.logo-text {
  letter-spacing: -0.5px;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  transition: all 0.3s ease;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: clamp(24px, 4vw, 48px);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 32px);
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-btn {
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
  display: inline-block;
}

.nav-btn.secondary {
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--border-color);
}

.nav-btn.secondary:hover {
  background: var(--background-alt);
}

.nav-btn.primary {
  color: #ffffff;
  background: var(--accent-color);
  border: 1px solid var(--accent-color);
}

.nav-btn.primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--background);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: 100px 32px 32px;
    gap: 32px;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-item {
    border-bottom: 1px solid var(--border-color);
  }

  .nav-link {
    display: block;
    padding: 16px 0;
    font-size: 16px;
  }

  .nav-link::after {
    display: none;
  }

  .nav-actions {
    flex-direction: column;
    width: 100%;
  }

  .nav-btn {
    width: 100%;
    text-align: center;
    padding: 14px 20px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .nav-list {
    gap: 20px;
  }
}

#statusIndicator {
  position: fixed;
  top: var(--nav-height);
  right: 16px;
  background-color: var(--background-alt);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-secondary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  z-index: 1001;
}
#offlineStatus {
  display: none;
  color: red;
}
#onlineStatus {
  display: none;
  color: green;
} 
#statusIndicator.offline #offlineStatus {
  display: inline;
}
#statusIndicator.offline #onlineStatus {
  display: none;
}
#statusIndicator.online #onlineStatus {
  display: inline;
}
#statusIndicator.online #offlineStatus {
  display: none;
}