:root {
  --font-body: 'Inter', sans-serif;
  --font-special: 'Orbitron', sans-serif;
  --yellow-primary: #facc15;
  --yellow-secondary: #fde047;
  --text-neutral-200: #e5e7eb;
  --text-neutral-400: #9ca3af;
  --text-neutral-500: #6b7280;
  --text-neutral-700: #374151;
}

body {
  padding-top: 73px; /* Space for header */
  padding-bottom: 73px; /* Space for footer */
}

/* --- Header --- */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: #2a2b2e;
  padding: 1rem 2rem;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border-bottom: 1px solid #353739;
}

.logo-placeholder {
  width: 40px;
  height: 40px;
  color: var(--yellow-primary);
}

.header-title {
  font-family: var(--font-special);
  font-size: 1.5rem;
  color: var(--yellow-primary);
  margin: 0;
}

/* --- Footer --- */
.app-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #2a2b2e;
  padding: 1rem 2rem;
  z-index: 50;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid #353739;
  font-size: 0.875rem;
  color: var(--text-neutral-400);
  flex-wrap: wrap;
}

.app-footer a {
  color: var(--text-neutral-200);
  text-decoration: none;
  transition: color 0.2s;
}

.app-footer a:hover {
  color: var(--yellow-primary);
}

#progress-bar {
  transition: width 0.3s ease-out;
}

@media (max-width: 768px) {
  body {
    padding-top: 65px;
    padding-bottom: 85px;
  }

  .app-header {
    padding: 0.75rem 1rem;
  }

  .header-title {
    font-size: 1.25rem;
  }

  .app-footer {
    padding: 0.75rem 1rem;
    justify-content: center;
    text-align: center;
    flex-direction: column;
    gap: 0.25rem;
  }
}