:root {
  --primary: #4f8cff;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
}
body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

header {
  background: white;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
}

main {
  display: grid;
  /* Start with 50/50 split with a 8px gap for the resizer */
  grid-template-columns: 1fr 8px 1fr;
  gap: 0;
  flex: 1;
  overflow: hidden;
}

.header-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.header-link {
  color: #64748b;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.header-link:hover {
  color: var(--primary);
}

.header-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Adjust the title/version group to stay left */
.brand-group {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

/* Remove the old border-right from #input-side */
#input-side {
  padding: 2rem;
  overflow-y: auto;
  border-right: none;
}

/* The Draggable Divider */
#resizer {
  width: 8px;
  cursor: col-resize;
  background: var(--border);
  transition: background 0.2s;
  z-index: 10;
  position: relative;
}

#resizer:hover,
.is-dragging #resizer {
  background: var(--primary);
}

/* Visual handle inside the resizer */
#resizer::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2px;
  height: 30px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 2px;
}
.category-section {
  margin-bottom: 2rem;
}
.category-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #64748b;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
}
.grid-inputs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.field label {
  font-size: 0.85rem;
  font-weight: 500;
}
.field input,
.field textarea {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
}
.field input:focus {
  outline: 2px solid var(--primary);
  border-color: transparent;
}

.full-width {
  grid-column: 1 / -1;
}
textarea {
  min-height: 80px;
  font-family: monospace;
  resize: vertical;
}

/* Right Side: Output */
/* Right Side: Output */
#output-side {
  background: #0f172a;
  padding: 0; /* Changed from 2rem to 0 to allow the scrollbar to hit the edges */
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden; /* Keeps the container from expanding */
}

#output {
  color: #e2e8f0;
  font-family: "Fira Code", "Consolas", monospace;
  font-size: 0.95rem;
  /* Key Changes Below: */
  white-space: pre; /* Changed from pre-wrap: strictly follows line breaks */
  overflow: auto; /* Adds scrollbars only when needed */
  margin: 0;
  padding: 2rem; /* Move the padding here instead of the container */
  flex: 1;
  tab-size: 4; /* Ensures consistent indentation */
}

/* Custom scrollbar styling for a cleaner look on the dark background */
#output::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
#output::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
}
#output::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
}
#output::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Container for the output area to handle button positioning */
#copy-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  backdrop-filter: blur(4px);
}

#copy-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--primary);
}

#copy-btn.success {
  background: #22c55e;
  border-color: #22c55e;
  color: white;
}

#controls {
  position: sticky;
  bottom: 2rem;
  display: flex;
  justify-content: center;
  width: 100%;
  pointer-events: none;
}
#run-btn {
  pointer-events: auto;
  padding: 0.75rem 2.5rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 99px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 15px -3px rgba(79, 140, 255, 0.4);
  transition: transform 0.2s;
}
#run-btn:hover {
  transform: translateY(-2px);
  background: #3b82f6;
}
#run-btn:disabled {
  background: #94a3b8;
  cursor: not-allowed;
}

#loading-overlay {
  position: fixed;
  inset: 0;
  background: white;
  z-index: 100;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}