/* ============================================================
   Симулятор "Нормальный алгоритм Маркова" - специфичные стили.
   Общие токены и компоненты - в ../base.css (подключать первым).
   ============================================================ */

/* ==================== ТАБЛО КОМАНДЫ ==================== */
.command-label {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 10px;
}

.command-text {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    background: var(--bg-secondary);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    display: inline-block;
    min-width: 200px;
    max-width: 100%;
    word-break: break-word;
    white-space: pre-wrap;
    box-sizing: border-box;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.command-text.active {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    background: var(--color-primary-bg);
}

.command-text.terminal {
    color: var(--color-success);
    border-color: #bbf7d0;
    background: #f0fdf4;
}

.command-text.stopped {
    color: var(--text-tertiary);
}

/* ==================== ЛЕНТА ==================== */
.tape {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    min-height: 60px;
}

.tape .cell {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 48px;
    background: var(--bg-card);
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.tape .cell.match {
    background: var(--color-primary-bg);
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
}

.tape .empty-msg {
    color: var(--text-tertiary);
    font-style: italic;
}

/* ==================== ПАНЕЛЬ УПРАВЛЕНИЯ ==================== */
/* .anim-controls / .control-group / .play-btn - общий компонент в base.css */

/* ==================== ГЛАВНЫЙ GRID ==================== */
.main-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas: 
        "input exec"
        "editor exec";
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.main-grid .section {
    margin-bottom: 0;
}

.word-input-section { grid-area: input; }
.editor-section { 
    grid-area: editor; 
    display: flex;
    flex-direction: column;
}
.execution-section { grid-area: exec; min-height: 0; min-width: 0; }

#tab-code.active {
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: var(--spacing-md);
}

@media (max-width: 900px) {
    .main-grid {
        grid-template-columns: 1fr;
        grid-template-areas: 
            "input"
            "exec"
            "editor";
        display: grid;
        gap: var(--spacing-md);
    }

    .execution-section {
        min-width: 0;
        overflow-x: hidden;
    }

    .execution-log {
        overflow-x: hidden !important;
        overflow-y: auto !important;
        flex: 0 0 340px !important;
        height: 340px !important;
        min-height: 340px !important;
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        padding-right: 0.5em !important;
        box-sizing: border-box !important;
    }

    .execution-log table {
        table-layout: fixed !important;
        width: calc(100% - 0.5em) !important;
        max-width: 100% !important;
        border-collapse: collapse !important;
        margin-right: 0.5em !important;
    }

    .execution-log thead,
    .execution-log tbody,
    .execution-log tr,
    .execution-log th,
    .execution-log td {
        min-width: 0 !important;
        box-sizing: border-box !important;
    }

    .execution-log th,
    .execution-log td {
        word-break: break-all !important;
        overflow-wrap: anywhere !important;
        white-space: normal !important;
    }

    .execution-log th:first-child,
    .execution-log td:first-child {
        width: 3em !important;
        word-break: normal !important;
    }

    .execution-log th:nth-child(2),
    .execution-log td:nth-child(2) {
        width: 7em !important;
    }

    .execution-log th:nth-child(3),
    .execution-log td:nth-child(3) {
        width: 5em !important;
    }

    .execution-log th:nth-child(4),
    .execution-log td:nth-child(4) {
        width: 5em !important;
        padding-right: 1em !important;
    }
}

@media (max-width: 768px) {
    .main-grid {
        margin-bottom: var(--spacing-md);
    }
}

/* ==================== РЕДАКТОР КОМАНД ==================== */
/* Стили алфавита - ниже, в рубрике АЛФАВИТ (единственное объявление). */
.syntax-hint {
    background: var(--color-primary-bg);
    border-left: 3px solid var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    word-break: break-word;
    overflow-wrap: anywhere;
    box-sizing: border-box;
}

.syntax-hint strong {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.95rem;
}

.syntax-hint code {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1px 6px;
    border-radius: 4px;
    color: var(--color-primary-dark);
    font-family: var(--font-mono);
}

.rules-textarea {
    min-height: 300px;
    max-height: 600px;
    resize: vertical;
    overflow-y: auto !important;
    overflow-x: auto !important;
    white-space: pre;
    font-family: var(--font-mono);
    line-height: 1.5;
    display: block;
}

/* ==================== ПРОТОКОЛ ==================== */
.stats-mini {
    display: grid;
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 0.9fr) minmax(0, 0.9fr) minmax(10.5em, 1.45fr);
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-md);
    margin-bottom: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    width: 100%;
    box-sizing: border-box;
    text-align: center;
}

.stats-mini strong {
    color: var(--text-primary);
}

/* Четыре метрики (Шагов / Время / Память / Статус): последняя колонка шире под
   "Введите правила" - самый длинный статус. */
.stats-mini > div {
    min-width: 0;
}

.stats-mini > div:last-child strong {
    white-space: nowrap;
}

.execution-log {
    flex: 1 1 0;
    min-height: 120px;
    overflow-y: auto;
    overflow-x: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-sizing: border-box;
    padding: 0;
    width: 100%;
    max-width: 100%;
    min-width: 0;
}

.execution-log.collapsed {
    display: none !important;
}

.execution-log table {
    width: 100%;
    border-collapse: collapse;
    table-layout: auto;
}

.execution-log th,
.execution-log td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.execution-log th {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    position: sticky;
    top: 0;
    z-index: 1;
}

.execution-log td {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.execution-log th:first-child,
.execution-log td:first-child {
    color: var(--text-tertiary);
    width: 2.5em;
    white-space: nowrap;
}

.execution-log th:nth-child(2),
.execution-log td:nth-child(2) {
    min-width: 6.5em;
    white-space: nowrap;
}

.execution-log td:nth-child(2) {
    color: var(--color-primary-dark);
}

.execution-log td:nth-child(3),
.execution-log td:nth-child(4) {
    color: var(--text-primary);
    min-width: 3em;
    word-break: normal;
    overflow-wrap: break-word;
}

.execution-log tbody tr:nth-child(even) {
    background: var(--bg-secondary);
}

.execution-log tr:hover {
    background: var(--bg-tertiary);
}

.execution-log tr.current {
    background: var(--color-primary-bg);
}

.execution-log .log-completion-row td {
    text-align: center;
    font-weight: 600;
    background: var(--color-primary-bg);
    color: var(--color-primary-dark);
    border-bottom: none;
    word-break: normal;
    white-space: normal;
}

/* ==================== АЛФАВИТ ==================== */
.alphabet-display {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
    /* Вертикальные отступы между textarea / Алфавит / Синтаксис задает flex-gap
       контейнера #tab-code (16px). Своих margin-top/bottom здесь НЕ ставим - в
       flex-контейнере они складываются с gap и промежуток удваивается. */
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    word-break: break-word;
    box-sizing: border-box;
}

.alphabet-display span:first-child,
.alphabet-display strong {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
}

.alphabet-chars {
    font-family: var(--font-mono);
    color: var(--color-primary-dark);
    letter-spacing: 3px;
    font-size: 1.05rem;
    font-weight: 400;
    word-break: break-word;
    overflow-wrap: anywhere;
}

/* ==================== ТИПОВЫЕ ЗАДАЧИ ==================== */
.tasks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.task-category {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.task-category h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.task-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.task-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.task-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff;
}

.task-btn:active {
    transform: scale(0.95);
}

/* ==================== ТАБЫ ЗАДАЧИ (описание / тесты) ==================== */
.tabs-header {
    display: none; /* показывается из JS после выбора задачи */
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-md);
    padding: 0;
    gap: var(--spacing-lg);
}

.tab-btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--color-primary);
}

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ==================== ОПИСАНИЕ ЗАДАЧИ ==================== */
.desc-box {
    white-space: pre-wrap;
    background: var(--color-primary-bg);
    border-left: 3px solid var(--color-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.95em;
    line-height: 1.6;
    max-height: 450px;
    overflow-y: auto;
}

.desc-box h4 {
    margin-top: 15px;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 1.05em;
    font-weight: 600;
}

.desc-box h4:first-child {
    margin-top: 0;
}

.desc-box p {
    margin-bottom: 10px;
}

.desc-box strong {
    color: var(--text-primary);
    font-weight: 600;
}

.list-item {
    color: var(--text-secondary);
}

/* ==================== ТЕСТЫ ЗАДАЧИ ==================== */
.tests-box {
    max-height: 450px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: 2px;
}

.test-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    color: var(--text-primary);
    text-align: left;
}

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

.test-item:active {
    transform: scale(0.99);
}

.test-io {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.test-inp {
    font-weight: 600;
    color: var(--color-primary-dark);
}

.test-out {
    color: var(--color-success);
    font-weight: 500;
}

.test-arrow {
    color: var(--text-tertiary);
}

/* ==================== АДАПТИВНОСТЬ ==================== */
@media (max-width: 768px) {
    .stats-mini {
        gap: 8px;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.82rem;
        grid-template-columns: minmax(0, 0.7fr) minmax(0, 0.85fr) minmax(0, 0.85fr) minmax(10.5em, 1.55fr);
    }

    .command-text {
        font-size: 1.4rem;
    }

    .tape .cell {
        width: 32px;
        height: 36px;
        font-size: 1.1rem;
    }

    /* Мобильная раскладка панели управления - в base.css */
}

@media (max-width: 480px) {
    .stats-mini {
        display: grid !important;
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 6px 2px !important;
        padding: 10px 6px !important;
        font-size: 0.8rem !important;
    }

    .stats-mini > div:last-child {
        grid-column: 1 / -1;
        margin-top: 2px;
        padding-top: 6px;
        border-top: 1px dashed var(--border-color);
    }

    .stats-mini > div:last-child strong {
        white-space: normal !important;
        word-break: break-word !important;
        overflow-wrap: anywhere !important;
    }

    .execution-log th,
    .execution-log td {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.82rem;
    }
}



/* --- Кнопка копирования --- */
.code-wrap { position: relative; }
.code-copy-btn {
    position: absolute; top: 8px; right: 20px; width: 30px; height: 30px;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); color: var(--text-tertiary);
    cursor: pointer; transition: all var(--transition-fast);
}
.code-copy-btn:hover { color: var(--color-primary); border-color: var(--color-primary); }
.code-copy-btn.copied { color: var(--color-success); border-color: #bbf7d0; background: #f0fdf4; }