/* Унифицированные стили для обеих тем */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --danger-color: #ef4444;
  
  /* Темная тема по умолчанию */
  --bg-color: #0f172a;
  --text-color: #f1f5f9;
  --border-color: #334155;
  --card-bg: #1e293b;
  --header-border: #475569;
  --tape-bg: #334155;
  --tape-border: #475569;
  --panel-bg: #1e293b;
  --control-bg: #334155;
}

/* Светлая тема */
body.light-theme {
  --bg-color: #ffffff;
  --text-color: #1e293b;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --header-border: #cbd5e1;
  --tape-bg: #f8fafc;
  --tape-border: #cbd5e1;
  --panel-bg: #f8fafc;
  --control-bg: #f1f5f9;
}

/* Базовые стили */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  letter-spacing: -0.01em;
  transition: all 0.3s ease;
  background-color: var(--bg-color);
  color: var(--text-color);
  min-height: 100vh;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.execution-error {
    background: #fef2f2;
    border: 2px solid #fecaca;
    border-radius: 8px;
    padding: 0;
    margin: 15px 0;
    color: #7f1d1d;
}

.dark-theme .execution-error {
    background: #7f1d1d;
    border-color: #fecaca;
    color: #fecaca;
}

.error-content {
    padding: 15px;
}

.error-content h4 {
    margin: 0 0 10px 0;
    color: #dc2626;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dark-theme .error-content h4 {
    color: #fecaca;
}

.error-message {
    margin-bottom: 15px;
    padding: 10px;
    background: rgba(220, 38, 38, 0.1);
    border-radius: 4px;
    font-weight: 500;
}

.dark-theme .error-message {
    background: rgba(254, 202, 202, 0.1);
}

.completion-message {
    background: #dbeafe;
    border: 2px solid #3b82f6;
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
    color: #1e3a8a;
}

.dark-theme .completion-message {
    background: #1e3a8a;
    border-color: #60a5fa;
    color: #dbeafe;
}

.message-content h4 {
    margin: 0 0 10px 0;
    color: #1d4ed8;
}

.dark-theme .message-content h4 {
    color: #60a5fa;
}

.message-text {
    margin-bottom: 15px;
    padding: 10px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 4px;
}

.message-help {
    background: rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: 6px;
    font-size: 0.9em;
}

.message-help ul {
    margin: 5px 0;
    padding-left: 20px;
}

.message-help li {
    margin: 2px 0;
}

.error-solution {
    background: rgba(255, 255, 255, 0.1);
    padding: 12px;
    border-radius: 6px;
    font-size: 0.9em;
}

.error-solution p {
    margin: 0 0 8px 0;
    font-weight: 600;
}

.error-solution ul {
    margin: 0;
    padding-left: 20px;
}

.error-solution li {
    margin: 4px 0;
}

.container {
  max-width: 100%;
  margin: 0 auto;
  min-height: 100vh;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Заголовок */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--card-bg);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-color);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  letter-spacing: -0.02em;
}

#theme-toggle {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--primary-color);
  color: white;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

#theme-toggle:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
}

#theme-toggle:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

/* Основная структура - 3 РАВНЫЕ колонки по ширине */
.main-content {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(300px, 1fr) minmax(300px, 1fr);
  grid-template-rows: 1fr;
  gap: 20px;
  align-items: stretch;
  flex: 1;
  min-height: 70vh;
}

/* ОБЩИЕ СТИЛИ ДЛЯ ВСЕХ КОЛОНОК */
.panel {
  display: flex;
  flex-direction: column;
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: 8px;
  height: 100%;
  /* УБРАЛ фиксированную высоту - вернул как было */
}

.panel h2 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-color);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 8px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  letter-spacing: -0.01em;
}

.panel-header {
    padding: 15px 20px;
    border-bottom: 2px solid #374151;
    background: rgba(255, 255, 255, 0.05);
}

.panel-header h2 {
    margin: 0;
    font-size: 1.2em;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* ЛЕВАЯ КОЛОНКА - Таблица переходов с компактным дизайном */
.left-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.transition-editor {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.add-rule-btn {
  padding: 8px 16px;
  background: var(--success-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.add-rule-btn:hover {
  background: #059669;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
}

.add-rule-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.transitions-list {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

/* Уменьшаем ширину столбцов в таблице переходов */
.transitions-table {
  width: 100%;
  font-size: 11px; /* Уменьшаем шрифт для компактности */
}

.attempts-info {
    font-size: 0.8em;
    color: #9ca3af;
    margin-top: 5px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
}

.table-header {
  display: grid;
  grid-template-columns: 0.7fr 0.5fr 0.7fr 0.5fr 0.5fr 0.7fr auto;
  gap: 4px;
  padding: 8px;
  background: var(--control-bg);
  border-radius: 6px;
  font-weight: bold;
  margin-bottom: 6px;
  font-size: 10px; /* Уменьшаем шрифт заголовков */
}

.transition-row {
  display: grid;
  grid-template-columns: 0.7fr 0.5fr 0.7fr 0.5fr 0.5fr 0.7fr auto;
  gap: 4px;
  padding: 6px;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: 4px;
  margin-bottom: 4px;
  font-size: 11px; /* Уменьшаем шрифт строк */
}

.transition-row select, .transition-row input {
  padding: 6px;
  border: 1px solid var(--border-color);
  border-radius: 3px;
  background: var(--bg-color);
  color: var(--text-color);
  font-size: 12px; /* Уменьшаем шрифт полей ввода */
  max-width: 100%; /* Ограничиваем максимальную ширину */
}

.transition-row input {
  width: 100%;
}

.delete-btn {
  background: var(--danger-color);
  color: white;
  border: none;
  border-radius: 3px;
  padding: 4px;
  cursor: pointer;
  width: 20px;
  height: 20px;
  font-size: 10px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(239, 68, 68, 0.2);
}

.delete-btn:hover {
  background: #dc2626;
  transform: scale(1.1);
  box-shadow: 0 2px 6px rgba(239, 68, 68, 0.3);
}

.delete-btn:active {
  transform: scale(0.95);
  box-shadow: 0 1px 3px rgba(239, 68, 68, 0.2);
}

.editor-help {
  margin-top: 15px;
  padding: 12px;
  background: var(--card-bg);
  border-radius: 6px;
  border: 2px solid var(--border-color);
  font-size: 11px; /* Немного уменьшаем шрифт помощи */
}

.editor-help ul {
  margin: 8px 0;
  padding-left: 16px;
}

.editor-help li {
  margin: 4px 0;
}

.start-btn {
    background: #065f46;
    border-color: #10b981;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.start-btn:hover:not(:disabled) {
    background: #047857;
    border-color: #34d399;
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
    transform: translateY(-1px);
}

.stop-btn {
    background: #7f1d1d;
    border-color: #ef4444;
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.2);
}

.stop-btn:hover:not(:disabled) {
    background: #991b1b;
    border-color: #f87171;
    box-shadow: 0 4px 8px rgba(239, 68, 68, 0.3);
    transform: translateY(-1px);
}

.step-btn {
    background: #1e3a8a;
    border-color: #3b82f6;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.step-btn:hover:not(:disabled) {
    background: #1e40af;
    border-color: #60a5fa;
    box-shadow: 0 4px 8px rgba(59, 130, 246, 0.3);
    transform: translateY(-1px);
}

.reset-btn {
    background: #424242;
    border-color: #6b7280;
    box-shadow: 0 2px 4px rgba(107, 114, 128, 0.2);
}

.reset-btn:hover:not(:disabled) {
    background: #525252;
    border-color: #9ca3af;
    box-shadow: 0 4px 8px rgba(107, 114, 128, 0.3);
    transform: translateY(-1px);
}

.speed-control.compact {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 8px 12px;
    background: #374151;
    border-radius: 6px;
    border: 2px solid #4b5563;
    min-width: 180px;
    width: fit-content;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.speed-control.compact:hover {
    border-color: #6b7280;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transform: translateY(-1px);
}

.speed-control.compact label {
    font-weight: 500;
    color: #d1d5db;
    font-size: 12px;
    min-width: 50px;
    white-space: nowrap;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.speed-control.compact #speed-slider {
    width: 80px;
    height: 4px;
    border-radius: 2px;
    background: #6b7280;
    outline: none;
    opacity: 0.8;
    transition: all 0.3s ease;
    cursor: pointer;
}

.speed-control.compact #speed-slider:hover {
    opacity: 1;
    background: #9ca3af;
}

.speed-control.compact #speed-slider::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #3b82f6;
    cursor: pointer;
    border: 2px solid #374151;
    box-shadow: 0 2px 6px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.speed-control.compact #speed-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    background: #2563eb;
}

.speed-control.compact #speed-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #3b82f6;
    cursor: pointer;
    border: 2px solid #374151;
    box-shadow: 0 2px 6px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.speed-control.compact #speed-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    background: #2563eb;
}

.speed-control.themed {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 5px 0;
    padding: 6px 12px;
    background: var(--primary-color);
    border-radius: 6px;
    border: 1px solid var(--primary-hover);
    max-width: 180px;
    width: fit-content;
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
    transition: all 0.3s ease;
}

.speed-control.themed:hover {
    border-color: var(--primary-hover);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
}

.speed-control.themed label {
    font-weight: 500;
    color: white;
    font-size: 12px;
    min-width: 50px;
}

.speed-control.themed #speed-slider {
    width: 80px;
    height: 4px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.3);
    outline: none;
    opacity: 0.8;
    transition: all 0.3s ease;
    cursor: pointer;
}

.speed-control.themed #speed-slider:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.5);
}

.speed-control.themed #speed-slider::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    border: 2px solid var(--primary-color);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.speed-control.themed #speed-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.speed-control.themed #speed-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    border: 2px solid var(--primary-color);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.speed-control.themed #speed-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* Слайдер скорости */
.speed-control {
    margin-bottom: 20px;
}

.speed-control label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9em;
    color: #d1d5db;
}

#speed-slider {
    width: 100%;
    margin-bottom: 5px;
}

.speed-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8em;
    color: #9ca3af;
}


/* ЦЕНТРАЛЬНАЯ КОЛОНКА - Лента и состояние */
.center-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  height: 100%;
}

.tape-stats {
    font-size: 12px;
    color: #e2e8f0;
    background: rgba(0, 0, 0, 0.2);
    padding: 4px 8px;
    border-radius: 12px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
}

.tape-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  width: 100%;
}

.tape-string {
    margin-top: 25px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1.1em;
    text-align: center;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-weight: 500;
    letter-spacing: -0.01em;
}

.tape-container {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: 3px solid #4c51bf;
    border-radius: 12px;
    padding: 20px;
    margin: 15px 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.tape-title {
    font-weight: 700;
    font-size: 16px;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.01em;
}

.tape {
    display: flex;
    gap: 4px;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border: 3px solid #cbd5e1;
    border-radius: 8px;
    padding: 10px;
    overflow-x: auto;
    justify-content: center;
}

.cell-symbol {
    font-size: 1.4em;
    font-weight: bold;
    color: #1e293b;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.02em;
}

.cell-index {
    font-size: 11px;
    color: #4a5568;
    position: absolute;
    top: 4px;
    right: 6px;
    background: rgba(0, 0, 0, 0.05);
    padding: 1px 4px;
    border-radius: 6px;
    font-weight: 500;
}

.cell-value {
    font-size: 24px;
    font-weight: 800;
    color: #2d3748;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.02em;
}

.tape-cell.active .cell-symbol {
    color: white;
    font-weight: 800;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.tape-info {
    text-align: center;
    font-size: 12px;
    color: #6b7280;
    margin-top: 10px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
} 

.tape-cell {
    width: 65px;
    height: 80px;
    border: 3px solid #cbd5e0;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(145deg, #ffffff, #f7fafc);
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.tape-cell:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.tape-cell.active {
    border-color: #48bb78;
    background: linear-gradient(145deg, #c6f6d5, #9ae6b4);
    box-shadow: 0 0 20px rgba(72, 187, 120, 0.4);
    transform: scale(1.05);
}

.tape-cells {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    min-height: 100px;
}

.tape-head {
    color: #e53e3e;
    font-size: 20px;
    font-weight: bold;
    position: absolute;
    bottom: -25px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    animation: bounce 2s infinite;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.02em;
}

.tape-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}


.tape-labels {
  display: flex;
  justify-content: space-around;
  width: 100%;
  max-width: 240px;
  font-size: 12px;
  color: var(--secondary-color);
  margin-top: 8px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 500;
}

.tape-label {
  text-align: center;
  flex: 1;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 500;
}

.state-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-top: 15px;
}

#current-state {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  text-align: center;
  padding: 10px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 6px;
  font-weight: 600;
  width: 100%;
  max-width: 240px;
  margin: 0 auto;
  letter-spacing: -0.01em;
}

#state-vector {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  padding: 12px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 6px;
  text-align: center;
  font-weight: 600;
  line-height: 1.4;
  width: 100%;
  letter-spacing: -0.01em;
}

#probabilities {
  padding: 12px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 6px;
  width: 100%;
}

#probabilities h3 {
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  letter-spacing: -0.01em;
}

#probabilities div {
  padding: 6px 10px;
  margin: 4px 0;
  background: var(--tape-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 12px;
  font-weight: 500;
}

/* ПРАВАЯ КОЛОНКА - Лабораторные работы (полная длина) */
.tasks-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.task-part {
    margin: 20px 0;
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #f8f9fa;
    border-left: 4px solid #3b82f6;
}

.task-navigation {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 15px;
}

.task-tab {
    flex: 1;
    padding: 12px 8px;
    border: none;
    background: transparent;
    color: #d1d5db;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    position: relative;
}

.task-tabs {
    display: flex;
    background: #374151;
    border-bottom: 2px solid #4b5563;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.task-tab:hover {
    background: #4b5563;
    color: white;
    transform: translateY(-1px);
}

.task-tab.active {
    background: #1f2937;
    color: white;
    border-bottom-color: #3b82f6;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.task-tab.completed {
    background: #065f46;
    color: white;
    border-bottom-color: #10b981;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.task-tab.completed:hover {
    background: #047857;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
}


.task-content {
    flex: 1;
    overflow-y: auto;
    padding: 0;
    max-height: 400px;
}

.task-column {
    padding: 0 20px;
}

.task {
    padding: 0 15px;
    margin-bottom: 30px;
}

.task-part h4 {
    margin-top: 0;
    color: #3b82f6;
}

.configuration-guide,
.experiment-steps,
.comparison-experiment {
    padding: 0 8px;
}

.tape-cell.active .cell-index {
    background: rgba(72, 187, 120, 0.2);
    color: #7bad8a;
    font-weight: 600;
}

.dark-theme .tape-container {
    background: linear-gradient(135deg, #4c51bf 0%, #2d3748 100%);
    border-color: #5a67d8;
}

.tape-footer {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 2px solid rgba(255, 255, 255, 0.2);
    text-align: center;
}

.dark-theme .task-theory,
.dark-theme .task-instructions {
    border-color: #444;
}

.dark-theme .tape-cell {
    background: linear-gradient(145deg, #2d3748, #4a5568);
    border-color: #718096;
}

.dark-theme .tape-cell.active {
    border-color: #68d391;
    background: linear-gradient(145deg, #22543d, #38a169);
}

.dark-theme .cell-value {
    color: #f7fafc;
}

.dark-theme .cell-index {
    color: #1a202c;
    background: rgba(255, 255, 255, 0.9);
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.dark-theme .task-part {
    border-color: #444;
    background: #2d3748;
}

.dark-theme .theory-formula {
    background: #2d3748;
    border-color: #10b981;
}

.dark-theme .hint-box {
    background: #453411;
    border-color: #f59e0b;
}

/* Стили для блока Эксперимент в задании 1 */
.task-experiment {
    padding: 0 15px 20px 15px !important;
    margin-bottom: 20px;
}

.task-experiment h4 {
    padding: 0 0 10px 0 !important;
}

.task-experiment ol {
    padding-left: 25px !important;
    padding-right: 10px !important;
}

.task-experiment li {
    margin-bottom: 8px;
    line-height: 1.5;
}

.task-header {
  display: flex;
  padding: 0 10px 15px 10px;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 25px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e0e0e0;
  gap: 8px;
}

.task-header h3 {
    margin: 0 0 8px 0;
    color: #e5e7eb;
    font-size: 1.1em;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.task-status {
    font-size: 0.8em;
    padding: 4px 8px;
    border-radius: 12px;
    background: #ef4444;
    color: white;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
}

.task-status.completed {
    background: #10b981;
}


.task-theory, .task-instructions {
  margin-bottom: 20px;
  border-bottom: 1px solid #f0f0f0;

  background: var(--card-bg);
  padding: 0 12px;
  margin: 8px 0;
  border-radius: 6px;
  border-left: 3px solid var(--primary-color);
  word-wrap: break-word;
  overflow-wrap: break-word;
  font-size: 12px;
  line-height: 1.4;
}

.task-theory h4, .task-instructions h4 {
  margin-bottom: 6px;
  color: var(--primary-color);
  font-size: 13px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.theory-formula {
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
  margin: 15px 0;
  border-left: 4px solid #10b981;
  font-size: 11px;
}

.theory-formula p {
  margin: 4px 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.hint-box {
  background: #fff3cd;
  border-radius: 8px;
  margin: 15px 0;
  border-left: 4px solid #f59e0b;
  font-size: 11px;
}

.hint-box h5 {
  margin: 0 0 6px 0;
  color: var(--success-color);
  font-size: 12px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hint-box ol {
  margin: 0;
  padding-left: 16px;
}

.hint-box li {
  margin: 4px 0;
}

.movement-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
}

.movement-label {
    font-size: 12px;
    color: #e2e8f0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
}

.movement-value {
    font-size: 13px;
    font-weight: 700;
    color: #faf089;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.01em;
}

.task-controls {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}

.check-btn, .hint-btn, .solution-btn {
    padding: 8px 12px;
    border: 1px solid #4b5563;
    border-radius: 4px;
    background: #374151;
    color: white;
    cursor: pointer;
    font-size: 0.8em;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.check-btn:hover { 
    background: #065f46; 
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
}

.hint-btn:hover { 
    background: #1e3a8a; 
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(59, 130, 246, 0.3);
}

.solution-btn:hover { 
    background: #7c2d12; 
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(124, 45, 18, 0.3);
}

.check-btn {
  background: var(--success-color);
  color: white;
}

.hint-btn {
  background: var(--primary-color);
  color: white;
}

.solution-btn {
  background: var(--secondary-color);
  color: white;
}

.task-feedback {
    margin-top: 15px;
    padding: 12px;
    border-radius: 6px;
    background: #1e3a8a;
    color: white;
    font-size: 0.9em;
}

.task-feedback.success {
    background: #065f46;
}

.task-feedback.error {
    background: #7f1d1d;
}

.feedback {
  padding: 10px;
  border-radius: 4px;
  border-left: 3px solid;
  font-size: 11px;
  word-wrap: break-word;
  line-height: 1.3;
  white-space: pre-line;
}

.feedback.success {
  background: #d1fae5;
  border-color: var(--success-color);
  color: #065f46;
}

.feedback.error {
  background: #fee2e2;
  border-color: var(--danger-color);
  color: #991b1b;
}

.feedback.info {
  background: #dbeafe;
  border-color: var(--primary-color);
  color: #1e40af;
}

.simulation-status {
    background: #374151;
    padding: 15px;
    border-radius: 6px;
    border: 1px solid #4b5563;
}

.status-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.9em;
}

.status-item:last-child {
    margin-bottom: 0;
}

.status-label {
    color: #9ca3af;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
}

.status-value {
    color: #e5e7eb;
    font-weight: 600;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.01em;
}

/* Панель управления */
.control-panel {
  background: var(--control-bg);
  padding: 15px 24px;
  border-radius: 8px;
  border: 2px solid var(--border-color);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  margin-left: -20px;
  margin-right: -20px;
  margin-top: auto;
  gap: 20px;
}

.control-panel-sim {
    padding: 20px;
    border-top: 2px solid #374151;
    background: rgba(255, 255, 255, 0.05);
    margin-top: auto;
}

.control-section {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.control-buttons-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    flex: 1;
    min-width: 200px;
}

.control-panel-sim h3 {
    margin: 0 0 15px 0;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid;
    font-size: 1.1em;
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Светлая тема */
.light-theme .control-panel-sim h3 {
    color: #1f2937 !important; /* Темно-серый */
    border-bottom-color: #e5e7eb !important;
}

/* Темная тема */  
.dark-theme .control-panel-sim h3 {
    color: #f9fafb !important; /* Белый */
    border-bottom-color: #4b5563 !important;
}


.control-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
}

.control-buttons button {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  background: var(--primary-color);
  color: white;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  min-width: 80px;
  white-space: nowrap;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.control-buttons button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  filter: brightness(1.1);
}

.control-buttons button:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.control-buttons button:disabled {
  background: var(--secondary-color);
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
  box-shadow: none;
}

#measure-btn {
  background: var(--success-color);
}

.speed-control {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card-bg);
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.speed-control:hover {
  border-color: var(--primary-color);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.speed-control label {
  font-weight: 500;
  font-size: 13px;
  white-space: nowrap;
  color: var(--text-color);
}

#speed-slider {
  width: 100px;
  height: 6px;
  border-radius: 3px;
  background: var(--border-color);
  outline: none;
  transition: all 0.3s ease;
  cursor: pointer;
}

#speed-slider:hover {
  background: var(--secondary-color);
}

#speed-slider::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: 2px solid var(--bg-color);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

#speed-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

#speed-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: 2px solid var(--bg-color);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

#speed-slider::-moz-range-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

#unitarity-indicator {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--danger-color);
  font-weight: bold;
  font-size: 18px;
  letter-spacing: -0.02em;
}

/* Адаптивность */
@media (max-width: 1024px) {
  .main-content {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .container {
    padding: 15px;
  }
  
  .control-panel {
    flex-direction: column;
    gap: 12px;
    margin-left: -15px;
    margin-right: -15px;
  }
  
  .speed-control {
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  
  h1 {
    font-size: 18px;
  }
  
  .control-buttons {
    gap: 6px;
  }
  
  .control-buttons button {
    min-width: 70px;
    padding: 8px 12px;
    font-size: 12px;
  }

  .control-section {
    flex-direction: column;
    gap: 15px;
    align-items: stretch;
  }

  .control-buttons-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 0;
  }

  .speed-control.compact {
    width: 100%;
    justify-content: center;
  }

  
  .table-header,
  .transition-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  
  .control-panel {
    margin-left: -15px;
    margin-right: -15px;
  }
}

.control-btn {
    padding: 12px 8px;
    border: 2px solid #4b5563;
    border-radius: 6px;
    background: #374151;
    color: white;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.control-btn:hover:not(:disabled) {
    background: #4b5563;
    border-color: #6b7280;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    filter: brightness(1.05);
}

.control-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.control-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    filter: none;
}

/* Стили для задания 2 - Квантовое измерение */
.measurement-stats {
    background: var(--control-bg);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 12px;
}

.measurement-stats p {
    margin: 4px 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.measurement-history {
    max-height: 150px;
    overflow-y: auto;
    background: var(--card-bg);
    padding: 8px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 8px;
    margin: 2px 0;
    background: var(--control-bg);
    border-radius: 3px;
    font-size: 11px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
}

.measurement-number {
    font-weight: bold;
    color: var(--secondary-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.01em;
}

.q0-result {
    color: #2563eb;
    font-weight: bold;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.01em;
}

.q1-result {
    color: #dc2626;
    font-weight: bold;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.01em;
}

.measurement-time {
    color: var(--secondary-color);
    font-size: 10px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 500;
}

.experiment-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.experiment-buttons button {
    flex: 1;
    min-width: 120px;
}