/* Tool UI styles for lab.johlem.net — common variables and components for interactive tools */
:root {
  --color-bg: #f5f5f0;
  --color-bg-secondary: #ebebeb;
  --color-bg-tertiary: #f0f0ec;
  --color-text: #111;
  --color-text-muted: #666;
  --color-border: #ccc;
  --color-border-hover: #999;
  --color-accent: #E8350A;
  --color-error: #c0392b;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --font-body: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  /* Legacy aliases used by some tools — mapped to canonical tokens */
  --cream: var(--color-bg);
  --cream-dark: var(--color-bg-secondary);
  --cream-darker: var(--color-border);
  --ink: var(--color-text);
  --ink-muted: var(--color-text-muted);
  --ink-faint: #999;
  --red: var(--color-accent);
  --font-display: var(--font-body);
  --border-radius: 0;
}

/* Tool container */
.tool-container { margin-top: 1.5rem; }

/* Buttons */
.btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  cursor: pointer;
}
.btn:hover { border-color: var(--color-border-hover); }
.btn-primary { background: var(--color-text); color: #fff; border-color: var(--color-text); }
.btn-primary:hover { opacity: 0.85; }
.btn-secondary { background: #fff; }
.btn-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  background: none;
  color: var(--color-text-muted);
  cursor: pointer;
}
.btn-copy:hover, .btn-copy.copied { border-color: var(--color-accent); color: var(--color-accent); }

/* Tool sections */
.tool-input-section { margin-bottom: 1.5rem; }
.tool-input-section label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}
.tool-output-section {
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
}
.tool-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

/* Inputs */
.tool-container input[type="text"],
.tool-container textarea,
.tool-container select {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  width: 100%;
  max-width: 100%;
  line-height: 1.5;
}
.tool-container textarea { resize: vertical; }
.tool-container select { width: auto; }

/* Mode tabs */
.mode-tabs, .cidr-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1.5rem;
  border: 1px solid var(--color-border);
  width: fit-content;
}
.mode-tab, .cidr-tab {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 8px 16px;
  background: #fff;
  border: none;
  border-right: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
}
.mode-tab:last-child, .cidr-tab:last-child { border-right: none; }
.mode-tab.active, .cidr-tab.active {
  background: var(--color-text);
  color: #fff;
}
.mode-tab:hover:not(.active), .cidr-tab:hover:not(.active) { background: var(--color-bg-secondary); }

/* Mode content visibility */
.mode-content { display: none; }
.mode-content.active { display: block; }

/* Privacy notice */
.privacy-notice {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

/* Reference sections */
.reference-section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.reference-section h3 {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 1rem 0;
  font-family: var(--font-mono);
  font-weight: normal;
}
.reference-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.reference-item { padding: 0.75rem 0; border-bottom: 1px solid var(--color-border); }
.reference-item:last-child { border-bottom: none; }
.reference-item h4 { font-size: 0.95rem; margin: 0 0 0.35rem 0; }
.reference-item p { color: var(--color-text-muted); font-size: 0.9rem; margin: 0; }
.reference-item code { background: var(--color-bg-secondary); padding: 1px 4px; font-size: 0.8rem; }

/* Checkbox */
.checkbox-inline {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* File drop */
.file-drop-zone {
  border: 2px dashed var(--color-border);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  position: relative;
}
.file-drop-zone:hover { border-color: var(--color-border-hover); }
.file-input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.drop-icon { font-size: 2rem; display: block; margin-bottom: 0.5rem; }
.drop-text p { margin: 0.25rem 0; font-size: 0.85rem; }
.text-muted { color: var(--color-text-muted); }

/* Progress bar */
.progress-bar { height: 4px; background: var(--color-bg-secondary); margin-top: 0.5rem; }
.progress-fill { height: 100%; background: var(--color-text); width: 0; transition: width 0.3s; }

/* Input grid */
.cidr-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 500px) { .cidr-input-grid { grid-template-columns: 1fr; } }

/* Verify grid */
.verify-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 500px) { .verify-grid { grid-template-columns: 1fr; } }

/* Lead text */
.lead {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* Skip to content — accessibility */
.skip-to-content {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: 8px 16px;
  background: var(--color-text, #111);
  color: var(--color-bg, #f5f5f0);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-decoration: none;
}
.skip-to-content:focus {
  left: 0;
}