#root {
  margin: 0;
  padding: 0;
}

.app-nav {
  background:
    radial-gradient(circle at top left, rgba(255, 191, 105, 0.32), transparent 28%),
    linear-gradient(135deg, rgba(10, 21, 30, 0.98) 0%, rgba(18, 39, 53, 0.98) 46%, rgba(28, 58, 66, 0.98) 100%);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.28);
  position: sticky;
  top: 0;
  z-index: 100;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.app-title {
  color: white;
  font-size: 1.8em;
  margin: 15px 0;
  letter-spacing: 0.03em;
}

.nav-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 13px 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.07) 100%);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.nav-link:hover {
  transform: translateY(-1px);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.16);
  color: var(--text-primary);
}

.nav-link.active {
  background-color: var(--bg-accent);
  color: var(--text-dark-accent);
  border-color: var(--bg-accent);
  box-shadow: 0 10px 22px rgba(255, 191, 105, 0.22);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 60px;
  padding: 15px 34px;
  background: linear-gradient(135deg, #ffd166 0%, #ffb347 48%, #ff8c42 100%);
  color: #1d1304;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  box-shadow: 0 16px 34px rgba(255, 140, 66, 0.34);
  font-size: 1.15em;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease, border-color 0.25s ease;
}

.nav-cta:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 20px 38px rgba(255, 140, 66, 0.42);
  filter: saturate(1.12);
  border-color: rgba(255, 255, 255, 0.38);
}

.nav-cta.active {
  box-shadow: 0 0 0 4px rgba(255, 209, 102, 0.24), 0 20px 38px rgba(255, 140, 66, 0.42);
}

.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

@media (max-width: 640px) {
  .nav-container {
    padding: 0 16px 14px;
  }

  .app-title {
    margin-bottom: 0;
    width: 100%;
  }

  .nav-buttons {
    width: 100%;
  }

  .nav-link {
    flex: 1 1 0;
    min-height: 50px;
    padding: 12px 18px;
    text-align: center;
  }

  .nav-actions {
    width: 100%;
    gap: 12px;
  }

  .nav-cta {
    width: 100%;
    min-height: 52px;
    padding: 14px 22px;
  }
}