/* Base Styles - Common across all devices */

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  background-color: #f5f5f5;
  color: #222;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  line-height: 1.3;
}

p {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding-left: 1.5rem;
}

button {
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  transition: background-color 0.2s, opacity 0.2s;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

textarea {
  font-family: "Consolas", "Monaco", "Courier New", monospace;
  font-size: 0.9rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 0.75rem;
  resize: vertical;
  width: 100%;
}

textarea:focus {
  outline: none;
  border-color: #4a90d9;
  box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.2);
}

pre {
  margin: 0;
  font-family: "Consolas", "Monaco", "Courier New", monospace;
  white-space: pre-wrap;
  word-break: break-all;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 0.5rem;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

th {
  background-color: #f0f0f0;
  font-weight: 600;
}

/* Buttons */
.btn {
  background-color: #4a90d9;
  color: white;
  font-weight: 500;
}

.btn:hover:not(:disabled) {
  background-color: #3a7bc8;
}

.btn-secondary {
  background-color: #6c757d;
}

.btn-secondary:hover:not(:disabled) {
  background-color: #5a6268;
}

.btn-external {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.btn-external::after {
  content: '↗';
  font-size: 0.75em;
  opacity: 0.8;
}

.btn-run {
  background-color: #28a745;
}

.btn-run:hover:not(:disabled) {
  background-color: #218838;
}

.btn-small {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
}

.btn-toggle {
  background-color: #6c757d;
}

.btn-toggle.active {
  background-color: #ffc107;
  color: #222;
}

.btn-help {
  background-color: transparent;
  border: 1px solid currentColor;
  color: inherit;
  padding: 0.375rem 0.75rem;
}

.btn-help:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.btn-close {
  background: none;
  font-size: 1.5rem;
  line-height: 1;
  padding: 0.25rem 0.5rem;
  color: #666;
}

.btn-close:hover {
  color: #222;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.placeholder {
  color: #888;
  font-style: italic;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

/* Header */
.header {
  background-color: #2c3e50;
  color: white;
  padding: 1rem;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.header-title h1 {
  font-size: 1.25rem;
}

.subtitle {
  font-size: 0.875rem;
  opacity: 0.8;
}

/* Input Section */
.input-section {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.input-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.input-header h2 {
  font-size: 1rem;
}

.legend {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.legend-upper {
  font-family: monospace;
  font-weight: bold;
  color: #c0392b;
}

.legend-lower {
  font-family: monospace;
  font-weight: bold;
  color: #27ae60;
}

.cipher-input {
  min-height: 120px;
}

.input-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.75rem;
  gap: 1rem;
}

.input-buttons {
  display: flex;
  gap: 0.5rem;
}

.char-counter {
  font-size: 0.875rem;
  color: #666;
}

/* Phase Navigation */
.phase-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.phase-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: white;
  border: 2px solid #ddd;
  border-radius: 8px;
  white-space: nowrap;
  flex-shrink: 0;
}

.phase-btn.active {
  border-color: #4a90d9;
  background-color: #e8f0fa;
}

.phase-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  background-color: #ddd;
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: bold;
}

.phase-btn.active .phase-num {
  background-color: #4a90d9;
  color: white;
}

.phase-name {
  font-size: 0.875rem;
  font-weight: 500;
}

/* Tab Navigation */
.tab-nav {
  margin-bottom: 0;
  background: #e8e8e8;
  border-radius: 8px 8px 0 0;
  padding: 0.5rem 0.5rem 0;
}

.tab-group {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0;
  flex-wrap: nowrap;
}

.tab-btn {
  padding: 0.6rem 1rem;
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  font-size: 0.875rem;
  white-space: nowrap;
  flex-shrink: 0;
  color: #555;
  position: relative;
  transition: all 0.2s;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.5);
  color: #333;
}

.tab-btn.active {
  background: white;
  font-weight: 600;
  color: #2c3e50;
  border-color: #ddd;
  box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.05);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: white;
}

/* Tab Content */
.tab-content {
  background: white;
  border: 1px solid #ddd;
  border-top: none;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
  min-height: 300px;
}

.tab-panel {
  display: none;
  padding: 1rem;
}

.tab-panel.active {
  display: block;
}

/* Panel Header */
.panel-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid #eee;
}

.panel-info {
  flex: 1;
}

.panel-desc {
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.panel-next {
  font-size: 0.8rem;
  color: #666;
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.last-run {
  font-size: 0.75rem;
  color: #888;
}

.mode-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.mode-label {
  font-size: 0.75rem;
  color: #666;
  margin-right: 0.25rem;
}

/* Toggle Switch */
.toggle-switch {
  display: inline-flex;
  background: #e0e0e0;
  border-radius: 6px;
  padding: 3px;
  gap: 0;
}

.toggle-option {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  border: none;
  background: transparent;
  color: #666;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.toggle-option:hover:not(.active) {
  color: #333;
  background: rgba(255, 255, 255, 0.5);
}

.toggle-option.active {
  background: white;
  color: #2c3e50;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.viewer-hint {
  font-size: 0.7rem;
  color: #999;
  margin-right: 0.5rem;
}

/* Panel Body */
.panel-body {
  min-height: 200px;
}

.split-view {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: hidden;
}

.split-view > * {
  min-width: 0;
  flex-shrink: 1;
}

.result-table {
  overflow-x: auto;
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.stat-card {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 0.75rem;
  text-align: center;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: bold;
  color: #2c3e50;
}

.stat-label {
  font-size: 0.75rem;
  color: #666;
}

/* Letter Sets */
.letter-sets {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.letter-set {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 0.75rem;
}

.letter-set-label {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.letter-set-content {
  font-family: monospace;
  font-size: 1rem;
  letter-spacing: 0.25rem;
}

.letter-unresolved {
  color: #c0392b;
}

.letter-resolved {
  color: #27ae60;
}

.letter-missing {
  color: #888;
}

/* Statistics Sections */
.stats-section {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid #eee;
}

.stats-section-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 0.75rem;
}

/* Feature List */
.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.feature-item {
  font-size: 0.85rem;
  padding: 0.25rem 0.5rem;
  background: #f8f9fa;
  border-radius: 4px;
  color: #555;
}

/* Frequency Ranking */
.freq-ranking {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.freq-rank-item {
  font-family: monospace;
  font-size: 0.9rem;
  padding: 0.25rem 0.5rem;
  background: #f0f0f0;
  border-radius: 4px;
  color: #333;
}

.freq-rank-item.top {
  background: #fff3cd;
  font-weight: bold;
  color: #856404;
}

.freq-rank-item small {
  font-size: 0.75rem;
  color: #666;
  margin-left: 0.15rem;
}

.no-data {
  color: #999;
  font-size: 0.85rem;
}

/* Mapping Status Grid */
.mapping-status-legend {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  color: #666;
}

.legend-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  margin-right: 0.25rem;
  vertical-align: middle;
}

.legend-dot.unresolved {
  background: #ffcdd2;
  border: 1px solid #e57373;
}

.legend-dot.resolved {
  background: #c8e6c9;
  border: 1px solid #81c784;
}

.legend-dot.unused {
  background: #e0e0e0;
  border: 1px solid #bdbdbd;
}

.mapping-status-grid {
  display: grid;
  grid-template-columns: repeat(13, 1fr);
  gap: 4px;
}

.mapping-status-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.25rem;
  border-radius: 4px;
  font-family: monospace;
  min-height: 40px;
}

.mapping-status-cell.unresolved {
  background: #ffcdd2;
  border: 1px solid #e57373;
}

.mapping-status-cell.resolved {
  background: #c8e6c9;
  border: 1px solid #81c784;
}

.mapping-status-cell.unused {
  background: #f5f5f5;
  border: 1px solid #e0e0e0;
  color: #bbb;
}

.cell-letter {
  font-weight: bold;
  font-size: 0.9rem;
}

.cell-mapped {
  font-size: 0.7rem;
  color: #2e7d32;
  margin-top: 2px;
}

/* Applied Mappings */
.applied-mappings {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.applied-mapping-item {
  font-family: monospace;
  font-size: 0.9rem;
  padding: 0.25rem 0.5rem;
  background: #e3f2fd;
  border: 1px solid #90caf9;
  border-radius: 4px;
  color: #1565c0;
}

.no-mapping {
  color: #999;
  font-size: 0.85rem;
}

/* Pie Chart */
.progress-chart-container {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.pie-chart {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
}

.pie-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70px;
  height: 70px;
  background: white;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.pie-percent {
  font-size: 1.25rem;
  font-weight: bold;
  color: #27ae60;
}

.pie-label {
  font-size: 0.7rem;
  color: #666;
}

.pie-legend {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.pie-legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.pie-dot {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  flex-shrink: 0;
}

.pie-dot.resolved {
  background: #27ae60;
}

.pie-dot.unresolved {
  background: #e74c3c;
}

.pie-dot.other {
  background: #95a5a6;
}

/* Progress Bar */
.progress-container {
  margin-top: 1rem;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.progress-bar {
  height: 1.5rem;
  background: #e0e0e0;
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #27ae60, #2ecc71);
  transition: width 0.3s;
}

/* IC Display */
.ic-display {
  margin-bottom: 1.5rem;
}

.ic-value {
  font-size: 2rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 1rem;
}

.ic-bar-container {
  position: relative;
  height: 2.5rem;
  background: linear-gradient(90deg, #e74c3c 0%, #f39c12 35%, #27ae60 65%, #3498db 100%);
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.ic-marker {
  position: absolute;
  top: -0.5rem;
  transform: translateX(-50%);
  font-size: 1.5rem;
}

.ic-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: #666;
}

.ic-references {
  margin-top: 1rem;
}

.ic-ref-item {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0;
  font-size: 0.875rem;
}

.ic-disclaimer {
  margin-top: 1rem;
  padding: 0.75rem;
  background: #fff3cd;
  border-radius: 4px;
  font-size: 0.875rem;
  color: #856404;
}

/* Word Length Distribution */
.word-length-chart {
  display: flex;
  align-items: flex-end;
  gap: 0.25rem;
  height: 150px;
  margin: 1rem 0;
  padding: 0.5rem;
  background: #f8f9fa;
  border-radius: 4px;
}

.word-length-bar {
  flex: 1;
  background: #4a90d9;
  border-radius: 2px 2px 0 0;
  min-width: 20px;
  position: relative;
}

.word-length-bar::after {
  content: attr(data-length);
  position: absolute;
  bottom: -1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
}

/* Frequency Chart */
.frequency-chart {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 200px;
  margin: 1rem 0;
  padding: 0.5rem 0;
  overflow-x: auto;
}

.freq-bar {
  flex: 1;
  min-width: 18px;
  background: #4a90d9;
  border-radius: 2px 2px 0 0;
  position: relative;
  cursor: pointer;
  transition: background-color 0.2s;
}

.freq-bar:hover {
  background: #3a7bc8;
}

.freq-bar::after {
  content: attr(data-letter);
  position: absolute;
  bottom: -1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  font-family: monospace;
}

.freq-bar.high {
  background: #e74c3c;
}

.freq-bar.mid {
  background: #f39c12;
}

.freq-bar.low {
  background: #3498db;
}

/* Frequency Groups */
.freq-groups {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.freq-group {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 0.75rem;
}

.freq-group-label {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.freq-group-letters {
  font-family: monospace;
  font-size: 1rem;
  letter-spacing: 0.25rem;
}

/* Cipher Viewer */
.cipher-viewer {
  background: #1e1e1e;
  border-radius: 6px;
  overflow: hidden;
}

.viewer-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  background: #2d2d2d;
  flex-wrap: wrap;
}

.match-counter {
  font-size: 0.875rem;
  color: #aaa;
  min-width: 60px;
  text-align: center;
}

.viewer-text {
  padding: 1rem;
  color: #d4d4d4;
  font-size: 0.9rem;
  line-height: 1.6;
  min-height: 150px;
  max-height: 300px;
  overflow-y: auto;
}

.viewer-text .highlight {
  background-color: #ffc107;
  color: #000;
  border-radius: 2px;
  padding: 0 2px;
}

.viewer-text .highlight.current {
  background-color: #ff5722 !important;
  color: white !important;
  outline: 2px solid #d84315;
  outline-offset: 1px;
  animation: pulse-current 0.5s ease-out;
}

@keyframes pulse-current {
  0% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}

.viewer-text .upper {
  color: #ff6b6b;
}

.viewer-text .lower {
  color: #69db7c;
}

/* Hints Container */
.hints-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: auto;
  min-width: 0;
}

.hint-section {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 1rem;
}

.hint-section h3 {
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
  color: #2c3e50;
}

.hint-item {
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
}

.hint-item:last-child {
  border-bottom: none;
}

/* Pattern Container */
.pattern-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: auto;
  min-width: 0;
}

.pattern-section {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 1rem;
}

.pattern-section h3 {
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
  color: #2c3e50;
}

.pattern-word {
  display: inline-block;
  font-family: monospace;
  background: #e0e0e0;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  margin: 0.25rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

.pattern-word:hover {
  background: #d0d0d0;
}

.pattern-word.selected {
  background: #ffc107;
}

/* Repeated Sequences Table */
.seq-table {
  font-size: 0.875rem;
}

.seq-table .seq-pattern {
  font-family: monospace;
  cursor: pointer;
}

.seq-table .seq-pattern:hover {
  text-decoration: underline;
}

.seq-table .seq-pattern.selected {
  background: #ffc107;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 1000;
}

.modal {
  background: white;
  border-radius: 8px;
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid #eee;
}

.modal-header h2 {
  font-size: 1.25rem;
}

.modal-body {
  padding: 1rem;
}

.modal-body h3 {
  font-size: 1rem;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.modal-body h3:first-child {
  margin-top: 0;
}

.modal-body .note {
  margin-top: 1rem;
  padding: 0.75rem;
  background: #e8f0fa;
  border-radius: 4px;
  font-size: 0.875rem;
}

.modal-body ul,
.modal-body ol {
  margin: 0.5rem 0;
}

.modal-body li {
  margin-bottom: 0.25rem;
}

.modal-body p {
  margin: 0.5rem 0;
}

/* Reference table in modal */
.ref-table {
  margin: 0.5rem 0;
  font-size: 0.875rem;
}

.ref-table th,
.ref-table td {
  padding: 0.4rem 0.6rem;
  border: 1px solid #ddd;
}

.ref-table th {
  background: #f0f0f0;
  font-weight: 600;
}

.ref-table tr:nth-child(even) {
  background: #f9f9f9;
}

/* Reference button */
.btn-ref {
  background-color: #8e44ad;
  font-size: 0.8rem;
}

.btn-ref:hover:not(:disabled) {
  background-color: #7d3c9b;
}

/* Clickable items */
.clickable {
  cursor: pointer;
}

.clickable:hover {
  background-color: rgba(74, 144, 217, 0.1);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Mapping Section */
.mapping-section {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.mapping-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.mapping-header h2 {
  font-size: 1rem;
}

.mapping-actions {
  display: flex;
  gap: 0.5rem;
}

.mapping-grid {
  display: grid;
  grid-template-columns: repeat(13, 1fr);
  gap: 0.35rem;
}

.mapping-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
}

.mapping-label {
  font-family: monospace;
  font-weight: bold;
  font-size: 0.85rem;
  color: #c0392b;
  min-width: 1em;
}

.mapping-input {
  width: 28px;
  height: 26px;
  text-align: center;
  font-family: monospace;
  font-size: 0.9rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 0;
}

.mapping-input:focus {
  outline: none;
  border-color: #4a90d9;
  box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.2);
}

.mapping-input.has-value {
  background-color: #e8f5e9;
  border-color: #27ae60;
  color: #27ae60;
  font-weight: bold;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: #323232;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-size: 0.9rem;
  z-index: 2000;
  opacity: 0;
  transition: opacity 0.3s;
}

.toast.show {
  opacity: 1;
}

.toast.success {
  background: #27ae60;
}

.toast.error {
  background: #e74c3c;
}

/* Multiple Highlight Colors */
.viewer-text .highlight.color-yellow {
  background-color: #ffc107;
  color: #000;
}

.viewer-text .highlight.color-cyan {
  background-color: #00bcd4;
  color: #000;
}

.viewer-text .highlight.color-lime {
  background-color: #8bc34a;
  color: #000;
}

.viewer-text .highlight.color-pink {
  background-color: #e91e63;
  color: white;
}

.viewer-text .highlight.color-orange {
  background-color: #ff9800;
  color: #000;
}

/* Highlight Color Selector */
.highlight-color-select {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  border: 1px solid #555;
  border-radius: 4px;
  background: #3d3d3d;
  color: white;
  cursor: pointer;
}

/* Space Highlight */
.viewer-text .space-marker {
  background-color: rgba(255, 255, 255, 0.2);
  border-bottom: 2px solid #4a90d9;
}

/* Shortcut Table */
.shortcut-table {
  width: 100%;
  margin: 0.5rem 0;
}

.shortcut-table td {
  padding: 0.25rem 0.5rem;
  border: none;
}

.shortcut-table td:first-child {
  width: 40%;
  text-align: right;
  padding-right: 1rem;
}

kbd {
  display: inline-block;
  padding: 0.15rem 0.4rem;
  font-family: monospace;
  font-size: 0.85rem;
  background: #f0f0f0;
  border: 1px solid #ccc;
  border-radius: 3px;
  box-shadow: 0 1px 0 #ccc;
}

/* Frequency Comparison Chart */
.freq-comparison {
  margin: 1.5rem 0;
}

.freq-comparison-header {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-size: 0.8rem;
}

.freq-legend {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.freq-legend-box {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

.freq-legend-box.cipher {
  background: #4a90d9;
}

.freq-legend-box.english {
  background: rgba(231, 76, 60, 0.5);
  border: 1px dashed #e74c3c;
}

.freq-bar-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
  min-width: 18px;
}

.freq-bar-container {
  width: 100%;
  height: 150px;
  position: relative;
  display: flex;
  align-items: flex-end;
}

.freq-bar-cipher {
  width: 100%;
  background: #4a90d9;
  border-radius: 2px 2px 0 0;
  position: relative;
  z-index: 2;
  min-height: 1px;
}

.freq-bar-english-marker {
  position: absolute;
  left: -2px;
  right: -2px;
  height: 3px;
  background: #e74c3c;
  z-index: 3;
  border-radius: 1px;
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.3);
}

.freq-bar-label {
  font-size: 0.75rem;
  font-family: monospace;
  margin-top: 0.25rem;
}

/* Kasiski Results */
.kasiski-results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.kasiski-section {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 1rem;
}

.kasiski-section h3 {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.factor-chart {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  height: 120px;
  padding: 0.5rem;
  background: white;
  border-radius: 4px;
}

.factor-bar {
  flex: 1;
  min-width: 30px;
  background: #4a90d9;
  border-radius: 2px 2px 0 0;
  position: relative;
  cursor: pointer;
}

.factor-bar:hover {
  background: #3a7bc8;
}

.factor-bar::after {
  content: attr(data-factor);
  position: absolute;
  bottom: -1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  font-weight: bold;
}

.factor-bar.recommended {
  background: #27ae60;
}

/* Reversible Pairs */
.reversible-pairs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.reversible-pair {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: #e8f0fa;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9rem;
  cursor: pointer;
}

.reversible-pair:hover {
  background: #d0e0f5;
}

.reversible-pair .arrow {
  color: #4a90d9;
}

/* Position Badge */
.position-badge {
  display: inline-block;
  padding: 0.1rem 0.3rem;
  font-size: 0.7rem;
  border-radius: 3px;
  margin-left: 0.25rem;
}

.position-badge.start {
  background: #e3f2fd;
  color: #1976d2;
}

.position-badge.middle {
  background: #fff3e0;
  color: #f57c00;
}

.position-badge.end {
  background: #fce4ec;
  color: #c2185b;
}

/* Footer */
.footer {
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
  background: #f0f0f0;
  border-top: 1px solid #ddd;
  font-size: 0.875rem;
  color: #666;
}

.footer a {
  color: #4a90d9;
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}