@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

/* Reset and Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Light Mode Tokens */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --border-color: #e2e8f0;
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.15);
  --accent-color: #8b5cf6;
  --accent-bg: #f5f3ff;
  --danger-color: #ef4444;
  --success-color: #10b981;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.08);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  color-scheme: light dark;
}

[data-theme="dark"] {
  /* Dark Mode Tokens */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border-color: #1f2937;
  --primary-color: #818cf8;
  --primary-hover: #6366f1;
  --primary-glow: rgba(129, 140, 248, 0.15);
  --accent-color: #a78bfa;
  --accent-bg: #1e1b4b;
  --danger-color: #f87171;
  --success-color: #34d399;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -4px rgba(0, 0, 0, 0.2);
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

/* Header & Navigation */
header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  flex-shrink: 0;
  margin-right: 0.5rem;
}

.logo span {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: nowrap;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.85rem;
  white-space: nowrap;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-color);
  background-color: var(--accent-bg);
}

#theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

#theme-toggle:hover {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border-color: var(--primary-color);
}

/* Page Container */
main {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--text-secondary);
}

.breadcrumbs a:hover {
  color: var(--primary-color);
}

.breadcrumbs span::after {
  content: "/";
  margin-left: 0.5rem;
}

.breadcrumbs span:last-child {
  color: var(--text-primary);
  font-weight: 500;
}

.breadcrumbs span:last-child::after {
  display: none;
}

/* Layout Structures */
.hero-section {
  text-align: center;
  margin-bottom: 3rem;
}

.hero-section h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.025em;
}

.hero-section p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Cards Grid */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md), var(--primary-glow) 0px 8px 30px;
}

.card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-sm);
  background-color: var(--accent-bg);
  color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  flex: 1;
}

.card-link {
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.card-link svg {
  transition: transform var(--transition-fast);
}

.card:hover .card-link svg {
  transform: translateX(4px);
}

/* Tool Interface Container */
.tool-container {
  max-width: 800px;
  margin: 0 auto 3rem auto;
}

.tool-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  margin-bottom: 2rem;
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.input-wrapper {
  position: relative;
  display: flex;
}

.text-input {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1.125rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.text-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Grid parameters for filters/options */
.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.select-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.select-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Checkbox option */
.checkbox-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
}

.checkbox-option input[type="checkbox"] {
  width: 1.15rem;
  height: 1.15rem;
  accent-color: var(--primary-color);
  cursor: pointer;
}

.btn-primary {
  width: 100%;
  padding: 0.875rem;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  opacity: 0.95;
}

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

/* Loading & Dictionary status */
.dict-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 1rem;
}

.spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Wordle input styling */
.wordle-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.wordle-row {
  display: flex;
  gap: 0.5rem;
}

.wordle-cell {
  width: 3.5rem;
  height: 3.5rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.wordle-cell.correct {
  background-color: var(--success-color);
  border-color: var(--success-color);
  color: white;
}

.wordle-cell.present {
  background-color: #eab308; /* Yellow */
  border-color: #eab308;
  color: white;
}

.wordle-cell.absent {
  background-color: #64748b; /* Gray */
  border-color: #64748b;
  color: white;
}

/* Results Section */
.results-section {
  display: none; /* Shown dynamically */
  margin-top: 2rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.results-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

.results-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.length-group {
  margin-bottom: 2rem;
}

.length-group-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  color: var(--text-secondary);
}

.word-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.word-item {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
}

.word-item:hover {
  border-color: var(--primary-color);
  background-color: var(--accent-bg);
}

.word-score {
  font-size: 0.75rem;
  background-color: var(--primary-color);
  color: white;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-weight: bold;
}

/* Tooltips */
.copy-tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  background-color: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  border-radius: 4px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  white-space: nowrap;
}

.word-item:active .copy-tooltip {
  opacity: 1;
}

/* Explainer/FAQ Content below the fold */
.content-section {
  max-width: 800px;
  margin: 4rem auto 0 auto;
  border-top: 1px solid var(--border-color);
  padding-top: 3rem;
}

.content-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.content-section p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.content-section ul, .content-section ol {
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.faq-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.faq-item {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item summary {
  padding: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: bold;
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 1.25rem 1.25rem 1.25rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

/* Related Tools */
.related-tools-section {
  max-width: 800px;
  margin: 3rem auto 0 auto;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

.related-tools-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.related-card {
  padding: 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: all var(--transition-fast);
}

.related-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.related-card-icon {
  font-size: 1.25rem;
}

.related-card-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
}

/* Footer styling */
footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3.5rem 1.5rem 2rem 1.5rem;
  margin-top: auto;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.5rem;
  max-width: 280px;
  line-height: 1.5;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Text Tools Utility Styles */
.textarea-input {
  width: 100%;
  min-height: 180px;
  padding: 1rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.6;
  resize: vertical;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.textarea-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-box {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  transition: border-color var(--transition-fast);
}

.stat-box:hover {
  border-color: var(--primary-color);
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.825rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.action-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.btn-secondary {
  padding: 0.65rem 1.25rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background-color: var(--accent-bg);
}

.btn-secondary:active {
  transform: translateY(1px);
}

.density-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.density-table th,
.density-table td {
  padding: 0.65rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.density-table th {
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
}

.density-bar-bg {
  width: 100%;
  height: 6px;
  background-color: var(--border-color);
  border-radius: 9999px;
  overflow: hidden;
  margin-top: 0.25rem;
}

.density-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 9999px;
}

.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Finance Tools Utility Styles */
.currency-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.currency-prefix {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 1.1rem;
  pointer-events: none;
  z-index: 2;
}

.currency-suffix {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 1rem;
  pointer-events: none;
  z-index: 2;
}

.currency-input {
  padding-left: 2.25rem !important;
}

.suffix-input {
  padding-right: 2.5rem !important;
}

.chart-wrapper {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stacked-bar-container {
  width: 100%;
  height: 24px;
  background-color: var(--border-color);
  border-radius: 9999px;
  overflow: hidden;
  display: flex;
  margin: 1rem 0;
}

.stacked-bar-segment {
  height: 100%;
  transition: width 0.3s ease;
}

.legend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  width: 100%;
  margin-top: 1rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.finance-table-wrapper {
  overflow-x: auto;
  margin-top: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.finance-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}

.finance-table th {
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.finance-table td {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  white-space: nowrap;
}

.finance-table tr:last-child td {
  border-bottom: none;
}

.finance-table tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.015);
}

[data-theme="dark"] .finance-table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.015);
}

/* Code Editor & Monospace Utilities */
.code-textarea {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95rem;
  line-height: 1.5;
  tab-size: 2;
  white-space: pre;
}

/* Dropzone & Image Utilities */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background-color: var(--bg-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary-color);
  background-color: var(--accent-bg);
}

.dropzone-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.image-preview-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0;
}

.image-preview-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 200px;
}

.image-preview-card img {
  max-width: 100%;
  max-height: 140px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.color-swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.color-swatch-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--bg-primary);
}

.color-swatch-box {
  height: 60px;
  width: 100%;
}

.color-swatch-label {
  padding: 0.5rem;
}

/* Responsive Header & Navigation */
@media (max-width: 1420px) {
  .nav-container {
    height: auto;
    min-height: 4rem;
    padding: 0.65rem 1rem 0.5rem 1rem;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .logo {
    font-size: 1.35rem;
    height: 2.2rem;
    margin-right: 0;
  }

  .nav-links {
    width: 100%;
    position: static;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    margin-top: 0.4rem;
    padding: 0.25rem 0;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .search-trigger-btn {
    position: absolute;
    right: 3.4rem;
    top: 0.65rem;
    z-index: 10;
    padding: 0.35rem 0.65rem;
    font-size: 0.85rem;
    border-radius: 20px;
  }

  #theme-toggle {
    position: absolute;
    right: 0.85rem;
    top: 0.65rem;
    z-index: 10;
    padding: 0.35rem 0.55rem;
    border-radius: 20px;
  }

  .nav-links a {
    flex-shrink: 0;
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-fast);
  }

  .nav-links a:hover,
  .nav-links a.active {
    background-color: var(--accent-bg);
    border-color: var(--primary-color);
    color: var(--primary-color);
  }
}

@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2rem;
  }
  .tool-card {
    padding: 1.5rem;
  }
  .options-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Global Search UI Component & Glassmorphic Modal
   ========================================================================== */

.search-trigger-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-trigger-btn:hover {
  border-color: var(--primary-color);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.search-kbd {
  font-family: inherit;
  font-size: 0.725rem;
  font-weight: 600;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
  color: var(--text-secondary);
  line-height: 1;
}

/* Search Modal Overlay */
.search-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 5vh;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.search-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-modal-container {
  width: 90%;
  max-width: 640px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 80vh;
  transform: scale(0.96) translateY(-10px);
  transition: transform 0.2s ease;
}

.search-modal-overlay.active .search-modal-container {
  transform: scale(1) translateY(0);
}

.search-modal-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  gap: 0.75rem;
}

.search-input-icon {
  font-size: 1.25rem;
}

#global-search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: inherit;
  font-size: 1.1rem;
  color: var(--text-primary);
  width: 100%;
}

#global-search-input::placeholder {
  color: var(--text-secondary);
}

.search-modal-close {
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: color var(--transition-fast);
}

.search-modal-close:hover {
  color: var(--text-primary);
}

.search-modal-body {
  padding: 0.5rem;
  overflow-y: auto;
  flex: 1;
  max-height: 480px;
}

.search-results-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.search-result-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  transition: background-color var(--transition-fast);
  border: 1px solid transparent;
}

.search-result-item:hover,
.search-result-item.selected {
  background-color: var(--accent-bg);
  border-color: var(--primary-glow);
}

.search-result-icon {
  font-size: 1.5rem;
  line-height: 1;
  padding-top: 0.15rem;
}

.search-result-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.search-result-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.search-result-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.search-result-item:hover .search-result-title,
.search-result-item.selected .search-result-title {
  color: var(--primary-color);
}

.search-result-badge {
  font-size: 0.725rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  white-space: nowrap;
}

.search-result-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.search-empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-secondary);
}

.search-empty-state p {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.search-empty-state span {
  font-size: 0.875rem;
}

.search-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.25rem;
  padding: 0.75rem 1.25rem;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  font-size: 0.775rem;
  color: var(--text-secondary);
}

.search-modal-footer kbd {
  font-family: inherit;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Mobile Responsiveness for Search Component */
@media (max-width: 768px) {
  .search-trigger-btn {
    padding: 0.35rem 0.65rem;
    font-size: 0.85rem;
    border-radius: 20px;
    flex-shrink: 0;
  }
}

@media (max-width: 600px) {
  .search-kbd {
    display: none; /* Hide ⌘K keyboard shortcut hint badge on mobile touch screens */
  }
  
  .search-modal-overlay {
    padding-top: 2vh;
  }

  .search-modal-container {
    width: 95%;
    max-height: 90vh;
    border-radius: var(--radius-md);
  }

  .search-modal-header {
    padding: 0.85rem 1rem;
  }

  #global-search-input {
    font-size: 16px; /* Prevents auto-zoom on iOS/Safari */
  }

  .search-modal-footer {
    display: none; /* Hide desktop keyboard shortcut hints on mobile */
  }

  .search-result-item {
    padding: 0.75rem;
  }

  .search-result-badge {
    font-size: 0.675rem;
  }
}