/* ПЕРЕМЕННЫЕ И ДИЗАЙН-ТОКЕНЫ */
:root {
    --bg-main: #0b0f19;
    --bg-sidebar: #0f1422;
    --bg-card: rgba(23, 32, 54, 0.45);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(139, 92, 246, 0.25);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --primary: #8b5cf6;
    --primary-hover: #a78bfa;
    --primary-glow: rgba(139, 92, 246, 0.4);
    
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-rose: #f43f5e;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-lg: 16px;
    --border-radius-md: 10px;
    --border-radius-sm: 6px;
    
    --font-ui: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* СБРОС И БАЗОВЫЕ СТИЛИ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-ui);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    display: flex;
    -webkit-font-smoothing: antialiased;
}

/* МАКЕТ ПРИЛОЖЕНИЯ */
.app-container {
    display: flex;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at 50% -20%, rgba(139, 92, 246, 0.15) 0%, rgba(11, 15, 25, 0) 50%),
                radial-gradient(circle at 100% 100%, rgba(6, 182, 212, 0.05) 0%, rgba(11, 15, 25, 0) 40%);
}

/* БОКОВАЯ ПАНЕЛЬ */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    flex-shrink: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
    padding-left: 8px;
}

.logo-icon {
    font-size: 32px;
    filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.4));
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.logo-text span {
    color: var(--primary);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-grow: 1;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin: 16px 0 8px 12px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--border-radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.nav-item i {
    font-size: 20px;
}

.nav-item:hover:not(.disabled) {
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.nav-item.active {
    background-color: rgba(139, 92, 246, 0.12);
    color: var(--primary-hover);
    border: 1px solid rgba(139, 92, 246, 0.15);
}

.nav-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    position: relative;
}

.nav-item .badge {
    position: absolute;
    right: 12px;
    font-size: 10px;
    background-color: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    color: var(--text-muted);
}

.sidebar-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-left: 8px;
}

/* ОСНОВНАЯ ЗОНА */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 24px 32px 32px 32px;
    overflow-y: auto;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-shrink: 0;
}

.header-title h2 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 4px;
}

.header-title p {
    font-size: 14px;
    color: var(--text-secondary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Селектор языка */
.language-selector {
    display: flex;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 3px;
    border-radius: var(--border-radius-sm);
    gap: 2px;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 4px;
    font-family: var(--font-ui);
    transition: var(--transition-smooth);
}

.lang-btn:hover:not(.active) {
    color: var(--text-primary);
}

.lang-btn.active {
    background-color: rgba(139, 92, 246, 0.18);
    color: var(--primary-hover);
    border: 1px solid rgba(139, 92, 246, 0.15);
}

/* РАБОЧЕЕ ПРОСТРАНСТВО */
.workspace {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    flex-grow: 1;
    min-height: 0; /* Важно для скролла внутри грида */
}

/* ПАНЕЛИ */
.panel {
    background-color: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.panel:hover {
    border-color: rgba(139, 92, 246, 0.15);
    box-shadow: 0 12px 40px -10px rgba(0, 0, 0, 0.5);
}

.panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(15, 20, 34, 0.3);
    flex-shrink: 0;
}

.panel-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
}

.panel-title i {
    font-size: 20px;
    color: var(--primary-hover);
}

/* Вкладки переключения форматов (санитайзер) */
.format-tabs-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.format-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    font-weight: 600;
}

.format-buttons {
    display: flex;
    background-color: rgba(11, 15, 25, 0.4);
    border: 1px solid var(--border-color);
    padding: 3px;
    border-radius: var(--border-radius-md);
    gap: 2px;
}

.format-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-ui);
    transition: var(--transition-smooth);
}

.format-btn:hover:not(.active) {
    color: var(--text-primary);
}

.format-btn.active {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.25);
}

/* ПОЛЯ ВВОДА / ВЫВОДА */
.textarea-wrapper {
    flex-grow: 1;
    position: relative;
    padding: 16px 20px;
    background-color: rgba(11, 15, 25, 0.2);
    min-height: 250px;
}

textarea {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.6;
    resize: none;
    white-space: pre-wrap;
    word-break: break-word;
}

textarea::placeholder {
    color: var(--text-muted);
}

/* Статистика внизу ввода */
.panel-footer-stats {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-secondary);
    background-color: rgba(15, 20, 34, 0.2);
    flex-shrink: 0;
}

.stat-badge {
    background-color: rgba(255, 255, 255, 0.04);
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.stat-badge span {
    font-weight: 600;
    color: var(--text-primary);
}

/* НАСТРОЙКИ */
.options-card {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background-color: rgba(15, 20, 34, 0.35);
    flex-shrink: 0;
}

.options-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

/* Кастомные чекбоксы */
.option-checkbox {
    display: flex;
    align-items: center;
    position: relative;
    cursor: pointer;
    font-size: 13.5px;
    color: var(--text-secondary);
    user-select: none;
    padding-left: 28px;
    transition: var(--transition-smooth);
}

.option-checkbox:hover {
    color: var(--text-primary);
}

.option-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 18px;
    width: 18px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.option-checkbox input:checked ~ .checkmark {
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 8px var(--primary-glow);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.option-checkbox input:checked ~ .checkmark:after {
    display: block;
}

.option-checkbox .checkmark:after {
    left: 6px;
    top: 2px;
    width: 4px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* КНОПКИ И ДЕЙСТВИЯ */
.btn-primary {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--border-radius-md);
    font-family: var(--font-ui);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
    transition: var(--transition-smooth);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 6px 16px rgba(139, 92, 246, 0.5);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px 18px;
    border-radius: var(--border-radius-md);
    font-family: var(--font-ui);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-smooth);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-text-action {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-smooth);
}

.btn-text-action:hover {
    color: var(--accent-rose);
}

/* ВКЛАДКИ */
.tab-buttons {
    display: flex;
    background-color: rgba(11, 15, 25, 0.3);
    border: 1px solid var(--border-color);
    padding: 4px;
    border-radius: var(--border-radius-md);
    gap: 2px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-ui);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.tab-btn:hover:not(.active) {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.03);
}

.tab-btn.active {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.25);
}

.tab-content {
    display: none;
    flex-grow: 1;
    min-height: 0;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

/* ТАБЛИЦА РЕЗУЛЬТАТОВ */
.table-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: 0;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    text-align: left;
}

.result-table th {
    position: sticky;
    top: 0;
    background-color: rgb(16, 23, 38);
    padding: 12px 20px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    z-index: 5;
}

.result-table td {
    padding: 10px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-primary);
}

.result-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Пустое состояние таблицы */
.empty-placeholder td {
    text-align: center;
    color: var(--text-muted);
    font-family: var(--font-ui);
    padding: 80px 20px !important;
    font-size: 14px;
}

/* ПОДВАЛ ПРАВОЙ ПАНЕЛИ */
.panel-footer-actions {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(15, 20, 34, 0.3);
    flex-shrink: 0;
}

.export-format {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

select {
    background-color: rgba(11, 15, 25, 0.4);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-ui);
    outline: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

select:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

/* ПРЕДПРОСМОТР (PREVIEW) В САНИТАЙЗЕРЕ */
.preview-container h1, .preview-container h2, .preview-container h3 {
    margin-top: 16px;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding-bottom: 6px;
}
.preview-container h1 { font-size: 22px; }
.preview-container h2 { font-size: 18px; }
.preview-container h3 { font-size: 16px; }

.preview-container p {
    margin-bottom: 12px;
    font-size: 14.5px;
    color: #e2e8f0;
}

.preview-container strong {
    color: var(--primary-hover);
    font-weight: 600;
}

.preview-container em {
    color: var(--accent-cyan);
    font-style: italic;
}

.preview-container a {
    color: var(--primary-hover);
    text-decoration: underline;
}

.preview-container ul, .preview-container ol {
    margin-left: 24px;
    margin-bottom: 12px;
}

.preview-container li {
    margin-bottom: 4px;
    font-size: 14.5px;
}

.preview-container code {
    font-family: var(--font-mono);
    background-color: rgba(255,255,255,0.06);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    color: var(--accent-cyan);
}

.preview-container pre {
    background-color: rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: var(--border-radius-sm);
    overflow-x: auto;
    margin-bottom: 12px;
}

.preview-container pre code {
    background: transparent;
    padding: 0;
    color: var(--text-primary);
}

/* УВЕДОМЛЕНИЕ (TOAST) */
.toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background-color: var(--accent-emerald);
    color: white;
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.4);
    display: flex;
    align-items: center;
    gap: 8px;
    transform: translateY(100px);
    opacity: 0;
    z-index: 100;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

/* СТИЛИЗАЦИЯ СКРОЛЛБАРОВ */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    transition: var(--transition-smooth);
}

::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* АДАПТИВНОСТЬ ПОД МОБИЛЬНЫЕ */
@media (max-width: 1024px) {
    .workspace {
        grid-template-columns: 1fr;
        overflow-y: auto;
    }
    
    body {
        overflow-y: auto;
    }
    
    .app-container {
        height: auto;
    }
    
    .sidebar {
        display: none; /* Можно скрыть на мелких экранах для упрощения */
    }
    
    .main-content {
        height: auto;
        padding: 16px;
    }
}

/* ================= РАБОЧАЯ ОБЛАСТЬ ГЛАВНОЙ СТРАНИЦЫ ================= */
.workspace-home {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-grow: 1;
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.home-hero {
    text-align: center;
    max-width: 700px;
}

.hero-dino {
    font-size: 64px;
    margin-bottom: 16px;
    filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.3));
    animation: bounce 3s infinite ease-in-out;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.home-hero h2 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary-hover) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.home-hero p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    width: 100%;
}

.tool-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.tool-card:hover {
    border-color: rgba(139, 92, 246, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
}

.tool-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.frequency-color {
    background-color: rgba(6, 182, 212, 0.15);
    color: var(--accent-cyan);
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.sanitizer-color {
    background-color: rgba(139, 92, 246, 0.15);
    color: var(--primary-hover);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.tool-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.tool-card p {
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-secondary);
    flex-grow: 1;
}

.tool-card .btn-primary {
    align-self: stretch;
    justify-content: center;
    padding: 10px 16px;
    font-size: 13px;
}

#san-content-preview {
    height: 100%;
    overflow: hidden;
    display: none;
    flex-direction: column;
}

.preview-container {
    height: 100%;
    overflow-y: auto;
    padding: 20px;
    background-color: rgba(11, 15, 25, 0.2);
    font-family: var(--font-ui);
    line-height: 1.6;
    color: var(--text-primary);
}

/* СТИЛИЗАЦИЯ ТАБЛИЦ В ВИЗУАЛЬНОМ ПРЕДПРОСМОТРЕ */
.preview-container table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0 20px 0;
    font-size: 13.5px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    background-color: rgba(15, 20, 34, 0.25);
    backdrop-filter: blur(10px);
}

.preview-container th {
    background-color: rgba(15, 20, 34, 0.65);
    color: var(--primary-hover);
    font-weight: 600;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    text-align: left;
}

.preview-container th:last-child {
    border-right: none;
}

.preview-container td {
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    border-right: 1px solid var(--border-color);
    color: var(--text-primary);
    line-height: 1.5;
}

.preview-container td:last-child {
    border-right: none;
}

.preview-container tr:last-child td {
    border-bottom: none;
}

.preview-container tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
}