/* TextPlus.net - Main Stylesheet */
/* Critical CSS is inlined in HTML, this contains additional styles */

/* ===== DARK MODE ===== */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --border-color: #e5e7eb;
  --border-color-light: #f3f4f6;
  --accent-color: #2563eb;
  --accent-hover: #1d4ed8;
  --success-color: #10b981;
  --error-color: #ef4444;
  --code-bg: #1f2937;
  --code-text: #f9fafb;
}

.dark-mode {
  --bg-primary: #1f2937;
  --bg-secondary: #111827;
  --bg-tertiary: #374151;
  --text-primary: #f9fafb;
  --text-secondary: #d1d5db;
  --text-tertiary: #9ca3af;
  --border-color: #374151;
  --border-color-light: #4b5563;
  --accent-color: #3b82f6;
  --accent-hover: #2563eb;
  --success-color: #34d399;
  --error-color: #f87171;
  --code-bg: #0f172a;
  --code-text: #e2e8f0;
}

.dark-mode {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.dark-mode body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.dark-mode header {
  background: #111827;
  border-bottom: 1px solid var(--border-color);
}

.dark-mode footer {
  background: #111827;
  border-top: 1px solid var(--border-color);
}

.dark-mode .tool-card,
.dark-mode .template-card,
.dark-mode .stat-card,
.dark-mode .score-card,
.dark-mode .tool-container,
.dark-mode .template-box {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.dark-mode .tool-card:hover,
.dark-mode .template-card:hover {
  border-color: var(--accent-color);
  box-shadow: 0 12px 24px rgba(59, 130, 246, 0.2);
}

.dark-mode .tool-card h3,
.dark-mode .template-card h3 {
  color: var(--accent-color);
}

.dark-mode .tool-card p,
.dark-mode .template-card p {
  color: var(--text-secondary);
}

.dark-mode textarea,
.dark-mode input[type="text"],
.dark-mode input[type="email"],
.dark-mode input[type="number"],
.dark-mode select {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.dark-mode textarea:focus,
.dark-mode input:focus,
.dark-mode select:focus {
  border-color: var(--accent-color);
}

.dark-mode .tool-output,
.dark-mode .template-content,
.dark-mode .sms-bubble {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-left-color: var(--accent-color);
}

.dark-mode .stats-grid,
.dark-mode .tips,
.dark-mode .info-box {
  background: var(--bg-secondary);
}

.dark-mode .info-box {
  border-left-color: var(--accent-color);
  color: var(--text-primary);
}

.dark-mode .reference-table {
  color: var(--text-primary);
}

.dark-mode .reference-table th {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.dark-mode .reference-table td {
  border-color: var(--border-color);
}

.dark-mode .reference-table tr:hover {
  background: var(--bg-tertiary);
}

.dark-mode h1,
.dark-mode h2,
.dark-mode h3,
.dark-mode h4 {
  color: var(--text-primary);
}

.dark-mode .score-interpretation,
.dark-mode .breadcrumb,
.dark-mode .stat-label,
.dark-mode .score-label {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.dark-mode .warning-box {
  background: #422006;
  border-left-color: #f59e0b;
  color: #fde68a;
}

.dark-mode pre code {
  background: var(--code-bg);
  color: var(--code-text);
}

/* Dark mode toggle button */
.theme-toggle {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  margin-left: 1rem;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.dark-mode .theme-toggle {
  border-color: rgba(59, 130, 246, 0.5);
}

.dark-mode .theme-toggle:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: #3b82f6;
}

/* Smooth transitions for theme change */
body, header, footer,
.tool-card, .template-card, .stat-card,
textarea, input, select {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Additional Tool Styles */
.tool-output {
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
  font-family: 'Courier New', monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

.stat-card {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 1rem;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: #2563eb;
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  color: #6b7280;
  margin-top: 0.25rem;
}

/* Reference Tables */
.reference-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.reference-table th,
.reference-table td {
  padding: 0.75rem;
  border: 1px solid #dee2e6;
  text-align: left;
}

.reference-table th {
  background: #f8f9fa;
  font-weight: 600;
  position: sticky;
  top: 0;
}

.reference-table tr:hover {
  background: #f8f9fa;
}

.char-preview {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: monospace;
}

/* Template Cards */
.template-card {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.template-card h3 {
  margin-top: 0;
  color: #1f2937;
}

.template-content {
  background: #f8f9fa;
  border-left: 3px solid #2563eb;
  padding: 1rem;
  margin: 1rem 0;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
}

.copy-btn {
  background: #10b981;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: background 0.2s;
}

.copy-btn:hover {
  background: #059669;
}

.copy-btn:active {
  transform: scale(0.98);
}

/* Diff Checker Styles */
.diff-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0;
}

.diff-output {
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.5;
}

.diff-line {
  padding: 0.25rem 0.5rem;
}

.diff-added {
  background: #d1fae5;
  color: #065f46;
}

.diff-removed {
  background: #fee2e2;
  color: #991b1b;
}

.diff-unchanged {
  background: #f8f9fa;
  color: #6b7280;
}

/* Regex Tester */
.regex-matches {
  background: #fef3c7;
  padding: 0.125rem 0.25rem;
  border-radius: 2px;
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .diff-container {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .reference-table {
    font-size: 0.8rem;
  }

  .reference-table th,
  .reference-table td {
    padding: 0.5rem;
  }
}

/* Print Styles */
@media print {
  .tool-controls,
  .btn,
  nav,
  footer {
    display: none;
  }

  .tool-output {
    border: 1px solid #000;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

/* Code blocks */
pre code {
  display: block;
  padding: 1rem;
  background: #1f2937;
  color: #f9fafb;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.5;
}

/* Utility classes */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.text-center { text-align: center; }
.text-muted { color: #6b7280; }
.text-success { color: #10b981; }
.text-error { color: #ef4444; }