:root {
    /* Основные цвета темы */
    --color-primary: #8f9dd4;
    --color-primary-hover: #a08bc4;
    --color-primary-dark: #7a8dd8;
    --color-secondary: #b08bc4;
    --color-secondary-hover: #c87ba0;
    
    /* Цвета текста */
    --color-text-primary: #333;
    --color-text-secondary: #666;
    --color-text-tertiary: #888;
    --color-text-quaternary: #aaa;
    --color-text-inverse: #ffffff;
    
    /* Цвета фона */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9ff;
    --color-bg-tertiary: #f0f2ff;
    --color-bg-quaternary: #e0e4ff;
    --color-bg-quinary: #e8eaff;
    --color-bg-light: #fafbff;
    --color-bg-disabled: #ccc;
    
    /* Цвета границ */
    --color-border-primary: #eee;
    --color-border-secondary: #ddd;
    --color-border-tertiary: #e0e4ff;
    --color-border-quaternary: #e8eaff;
    --color-border-accent: #b08bc4;
    --color-border-accent-hover: #c87ba0;
    
    /* Цвета ссылок */
    --color-link: #667eea;
    --color-link-hover: #5568d3;
    --color-link-alt: #0066cc;
    --color-link-alt-hover: #004499;
    
    /* Цвета заголовков */
    --color-heading-h1: #8f9dd4;
    --color-heading-h2: #8f9dd4;
    --color-heading-h3: #555;
    --color-heading-h4: #8f9dd4;
    
    /* Цвета статусов */
    --color-success-bg-start: #a8d5ba;
    --color-success-bg-end: #8fc4a8;
    --color-success-text: #0d4f2a;
    --color-success-border: rgba(255, 255, 255, 0.3);
    --color-success-shadow: rgba(143, 196, 168, 0.3);
    
    --color-error-bg-start: #d8a8a8;
    --color-error-bg-end: #c89898;
    --color-error-text: #6b2a2a;
    --color-error-border: rgba(255, 255, 255, 0.3);
    --color-error-shadow: rgba(200, 152, 152, 0.3);
    
    --color-info-bg-start: #a8c0d8;
    --color-info-bg-end: #98b0c8;
    --color-info-text: #2a3a4a;
    --color-info-border: rgba(255, 255, 255, 0.3);
    --color-info-shadow: rgba(152, 176, 200, 0.3);
    
    /* Цвета кнопок */
    --color-button-bg-start: #b08bc4;
    --color-button-bg-mid: #8f9dd4;
    --color-button-bg-end: #7a8dd8;
    --color-button-bg-hover-start: #c87ba0;
    --color-button-bg-hover-mid: #a08bc4;
    --color-button-bg-hover-end: #8a9dd8;
    --color-button-text: #ffffff;
    --color-button-border: rgba(255, 255, 255, 0.2);
    --color-button-shadow: rgba(138, 139, 196, 0.4);
    --color-button-shadow-hover: rgba(138, 139, 196, 0.6);
    
    /* Цвета градиента фона */
    --color-bg-gradient-start: #e8d4b0;
    --color-bg-gradient-15: #e0c8a0;
    --color-bg-gradient-30: #dab8a0;
    --color-bg-gradient-45: #d0a8a8;
    --color-bg-gradient-60: #c5a8b8;
    --color-bg-gradient-75: #b8a8c8;
    --color-bg-gradient-90: #a8b0d0;
    --color-bg-gradient-end: #9db0d4;
    
    /* Цвета теней */
    --color-shadow-light: rgba(0, 0, 0, 0.05);
    --color-shadow-medium: rgba(0, 0, 0, 0.1);
    --color-shadow-dark: rgba(0, 0, 0, 0.3);
    --color-shadow-primary: rgba(138, 139, 196, 0.3);
    --color-shadow-primary-hover: rgba(138, 139, 196, 0.5);
    
    /* Цвета для CEFR уровней (Material Design цвета) */
    --color-cefr-a1: #F44336;
    --color-cefr-a2: #FF9800;
    --color-cefr-b1: #FFC107;
    --color-cefr-b2: #4CAF50;
    --color-cefr-c1: #2196F3;
    --color-cefr-c2: #9C27B0;
    --color-cefr-nd: #9E9E9E;
    
    /* Общие значения для устранения дублирования */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.2s ease;
    --transform-hover: translateY(-2px);
    --shadow-button: 0 2px 8px var(--color-shadow-primary), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    --shadow-button-hover: 0 4px 12px var(--color-shadow-primary-hover), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    --shadow-card: 0 2px 8px var(--color-shadow-medium);
    --padding-button: 8px 16px;
    --padding-button-lg: 12px 24px;
    
    /* Градиенты для кнопок (вынесены для переиспользования) */
    --gradient-button-base: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(255, 255, 255, 0.05) 1px,
        rgba(255, 255, 255, 0.05) 2px
    ), linear-gradient(135deg, var(--color-button-bg-start) 0%, var(--color-button-bg-mid) 100%);
    --gradient-button-hover: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(255, 255, 255, 0.08) 1px,
        rgba(255, 255, 255, 0.08) 2px
    ), linear-gradient(135deg, var(--color-button-bg-hover-start) 0%, var(--color-button-bg-hover-mid) 100%);
    --gradient-button-full: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(255, 255, 255, 0.05) 1px,
        rgba(255, 255, 255, 0.05) 2px
    ), linear-gradient(135deg, var(--color-button-bg-start) 0%, var(--color-button-bg-mid) 50%, var(--color-button-bg-end) 100%);
    --gradient-button-full-hover: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(255, 255, 255, 0.08) 1px,
        rgba(255, 255, 255, 0.08) 2px
    ), linear-gradient(135deg, var(--color-button-bg-hover-start) 0%, var(--color-button-bg-hover-mid) 50%, var(--color-button-bg-hover-end) 100%);
    --gradient-status-base: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(255, 255, 255, 0.1) 1px,
        rgba(255, 255, 255, 0.1) 2px
    );
    --gradient-bg-secondary: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    
    /* SVG иконка стрелки для селектов */
    --svg-arrow-blue: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%23667eea' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    --svg-arrow-white: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%23ffffff' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.02) 2px,
            rgba(0, 0, 0, 0.02) 4px
        ),
        linear-gradient(
            180deg,
            var(--color-bg-gradient-start) 0%,
            var(--color-bg-gradient-15) 15%,
            var(--color-bg-gradient-30) 30%,
            var(--color-bg-gradient-45) 45%,
            var(--color-bg-gradient-60) 60%,
            var(--color-bg-gradient-75) 75%,
            var(--color-bg-gradient-90) 90%,
            var(--color-bg-gradient-end) 100%
        );
    background-attachment: fixed;
    min-height: 100vh;
    padding: 20px;
    color: var(--color-text-primary);
}

.page-wrapper {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.ad-sidebar {
    flex: 0 0 240px;
    position: sticky;
    top: 20px;
    min-height: 250px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.ad-sidebar > div {
    width: 100%;
    min-height: 250px;
}

.content-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 0;
}

.container {
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 60px var(--color-shadow-dark);
    max-width: 700px;
    width: 100%;
    padding: 40px;
    animation: fadeIn 0.5s ease-in;
    position: relative;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 2.5em;
    color: var(--color-heading-h1);
    margin-bottom: 10px;
    font-weight: 700;
}

h2 {
    color: var(--color-heading-h2);
}

h3 {
    color: var(--color-heading-h3);
}

h4 {
    color: var(--color-heading-h4);
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 1.1em;
}

.upload-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.format-selector {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px 20px;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border-accent);
    border-radius: var(--border-radius-md);
    transition: var(--transition-base);
}

.format-selector:hover {
    border-color: var(--color-border-accent-hover);
    background: var(--color-bg-tertiary);
}

.format-label-inline {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 1em;
    white-space: nowrap;
    flex-shrink: 0;
}

/* .format-select внутри .format-selector имеет другой стиль (светлый) */
.format-selector .format-select {
    flex: 0 0 auto;
    min-width: 120px;
    background: var(--color-bg-primary);
    background-image: var(--svg-arrow-blue);
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 24px 24px;
    color: var(--color-text-primary);
    border: 2px dashed var(--color-border-accent);
    border-radius: var(--border-radius-sm);
    padding: 10px 42px 10px 16px;
    font-size: 1em;
    font-weight: 500;
    box-shadow: none;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.format-selector .format-select:hover {
    border-color: var(--color-border-accent-hover);
    border-style: dashed;
    background-color: var(--color-bg-secondary);
    background-image: var(--svg-arrow-blue);
    transform: none;
    box-shadow: none;
}

.format-selector .format-select:focus {
    outline: none;
    border-color: var(--color-border-accent-hover);
    border-style: dashed;
    background-image: var(--svg-arrow-blue);
    box-shadow: 0 0 0 3px rgba(176, 139, 196, 0.1);
}

.format-selector .format-select option {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    padding: 12px;
    font-size: 0.7em;
}

.upload-box {
    border: 2px dashed var(--color-border-accent);
    border-radius: var(--border-radius-md);
    padding: 20px;
    transition: var(--transition-base);
    background: var(--color-bg-secondary);
}

.upload-box:hover {
    border-color: var(--color-border-accent-hover);
    background: var(--color-bg-tertiary);
    transform: var(--transform-hover);
}

.file-label {
    display: block;
    cursor: pointer;
    width: 100%;
}

.file-input-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.file-label input[type="file"] {
    display: none;
}

.file-label-text {
    font-size: 1.2em;
    font-weight: 600;
    color: var(--color-primary);
    display: block;
    margin-bottom: 8px;
}

.file-name {
    font-size: 0.9em;
    color: var(--color-text-tertiary);
    font-style: italic;
}

.merge-button, .download-button {
    width: 100%;
    padding: 18px;
    font-size: 1.2em;
    font-weight: 600;
    color: var(--color-button-text);
    background: var(--gradient-button-full);
    border: 1px solid var(--color-button-border);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-base);
    margin-bottom: 20px;
    box-shadow: 0 4px 15px var(--color-button-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.merge-button::before, .download-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    transition: left 0.8s ease;
}

.merge-button:hover::before, .download-button:hover::before {
    left: 100%;
}

.merge-button:hover:not(:disabled), .download-button:hover {
    transform: var(--transform-hover);
    box-shadow: 0 6px 20px var(--color-button-shadow-hover), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    background: var(--gradient-button-full-hover);
}

.merge-button:active:not(:disabled), .download-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px var(--color-button-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.merge-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--color-bg-disabled);
    box-shadow: none;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.status {
    padding: 15px;
    border-radius: var(--border-radius-md);
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Базовые стили для статусов */
.status.success,
.status.error,
.status.info {
    background: var(--gradient-status-base), var(--status-gradient);
    border: 1px solid var(--status-border);
    box-shadow: 0 2px 8px var(--status-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.status.success {
    --status-gradient: linear-gradient(135deg, var(--color-success-bg-start) 0%, var(--color-success-bg-end) 100%);
    --status-border: var(--color-success-border);
    --status-shadow: var(--color-success-shadow);
    color: var(--color-success-text);
}

.status.error {
    --status-gradient: linear-gradient(135deg, var(--color-error-bg-start) 0%, var(--color-error-bg-end) 100%);
    --status-border: var(--color-error-border);
    --status-shadow: var(--color-error-shadow);
    color: var(--color-error-text);
}

.status.info {
    --status-gradient: linear-gradient(135deg, var(--color-info-bg-start) 0%, var(--color-info-bg-end) 100%);
    --status-border: var(--color-info-border);
    --status-shadow: var(--color-info-shadow);
    color: var(--color-info-text);
}

.hidden {
    display: none;
}

.seo-snippet {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.results {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid var(--color-border-primary);
}

.stats {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 25px;
    padding: 20px;
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-sm);
    box-shadow: 0 2px 5px var(--color-shadow-light);
}

.stat-label {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.stat-value {
    font-weight: 700;
    font-size: 1.2em;
    color: var(--color-primary);
}

/* Компактная статистика */
.stats-compact {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 18px;
    padding: 16px;
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
}

@media (max-width: 700px) {
    .stats-compact {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 520px) {
    .stats-compact {
        grid-template-columns: 1fr;
    }
}

.stat-compact-item {
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-sm);
    padding: 12px 14px;
    box-shadow: 0 2px 6px var(--color-shadow-light);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stat-compact-label {
    font-size: 0.95em;
    color: var(--color-text-secondary);
    font-weight: 600;
    line-height: 1.2;
}

.stat-compact-value {
    font-size: 1.4em;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.1;
}

/* Статистика изучения */
.learning-stats {
    margin: 20px 0;
    padding: 20px;
    background: var(--gradient-bg-secondary);
    border-radius: var(--border-radius-md);
    border: 2px solid var(--color-border-tertiary);
}

.learning-stats h3 {
    margin: 0 0 20px 0;
    color: var(--color-primary);
    font-size: 1.3em;
    text-align: center;
}

.learning-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

@media (max-width: 600px) {
    .learning-stats-grid {
        grid-template-columns: 1fr;
    }
}

.learning-stat-card {
    background: var(--color-bg-primary);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px var(--color-shadow-medium);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.learning-stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--color-shadow-medium);
}

.learning-stat-label {
    font-size: 0.85em;
    color: var(--color-text-tertiary);
    margin-bottom: 8px;
    font-weight: 500;
}

.learning-stat-value {
    font-size: 2em;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.learning-stat-sublabel {
    font-size: 0.75em;
    color: var(--color-text-quaternary);
}

.learning-stats-actions {
    text-align: center;
    margin-top: 15px;
}

.export-vocab-button {
    padding: var(--padding-button-lg);
    font-size: 1em;
    font-weight: 600;
    color: var(--color-button-text);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: 0 3px 10px var(--color-shadow-primary);
}

.export-vocab-button:hover {
    transform: var(--transform-hover);
    box-shadow: 0 5px 15px var(--color-shadow-primary-hover);
    background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-secondary-hover) 100%);
}

.export-vocab-button:active {
    transform: translateY(0);
}

/* CEFR Анализ */
.cefr-analysis {
    margin-top: 25px;
    padding: 20px;
    background: var(--color-bg-primary);
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--color-shadow-medium);
}

.cefr-analysis h4 {
    margin: 0 0 8px 0;
    color: var(--color-primary);
    font-size: 1.1em;
    text-align: center;
}

.cefr-help-link {
    display: block;
    text-align: center;
    text-decoration: none;
    color: var(--color-text-quaternary);
    transition: all 0.2s ease;
    margin: 0 auto 15px auto;
    font-size: 0.75em;
}

.cefr-help-link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.cefr-info-link {
    text-decoration: none;
    color: var(--color-link);
    font-weight: 600;
    transition: color 0.2s ease;
}

.cefr-info-link:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

.cefr-overall {
    text-align: center;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--gradient-bg-secondary);
    border-radius: var(--border-radius-sm);
}

.cefr-overall-label {
    font-size: 0.9em;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.cefr-overall-value {
    font-size: 2.5em;
    font-weight: 700;
    color: var(--color-primary);
    text-shadow: 0 2px 4px var(--color-shadow-light);
}

.cefr-chart-container {
    margin-top: 20px;
}

.cefr-chart {
    height: 30px;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 15px;
    display: flex;
    box-shadow: 0 2px 8px var(--color-shadow-medium);
}

.cefr-chart-segment {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-inverse);
    font-size: 0.75em;
    font-weight: 600;
    text-shadow: 0 1px 2px var(--color-shadow-dark);
    transition: opacity 0.2s ease;
    cursor: pointer;
}

.cefr-chart-segment:hover {
    opacity: 0.8;
}

.cefr-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.cefr-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85em;
    color: var(--color-text-primary);
}

.cefr-legend-color {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.cefr-legend-label {
    font-weight: 500;
}

.cefr-legend-percentage {
    color: var(--color-text-tertiary);
    font-size: 0.9em;
}

/* Предпросмотр субтитров */
.subtitle-preview {
    margin: 25px 0;
    padding: 25px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius-md);
    border: 2px solid var(--color-border-quaternary);
}

.subtitle-preview h3 {
    margin: 0 0 15px 0;
    color: var(--color-primary);
    font-size: 1.3em;
    text-align: center;
}

.preview-content {
    max-height: 500px;
    overflow-y: auto;
    padding: 15px;
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--color-border-tertiary);
}

.preview-subtitles {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.preview-item {
    padding: 15px;
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--color-primary);
    transition: var(--transition-fast);
}

.preview-item:hover {
    background: var(--color-bg-tertiary);
    transform: translateX(5px);
    box-shadow: 0 2px 8px var(--color-shadow-light);
}

.preview-time {
    font-size: 0.8em;
    color: var(--color-text-tertiary);
    margin-bottom: 8px;
    font-weight: 600;
}

.preview-text {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.preview-english {
    font-size: 1em;
    color: var(--color-text-primary);
    font-weight: 500;
    line-height: 1.5;
}

.preview-russian {
    font-size: 0.95em;
    color: var(--color-text-secondary);
    font-style: italic;
    line-height: 1.5;
    padding-top: 5px;
    border-top: 1px dashed var(--color-border-secondary);
}

.preview-more {
    text-align: center;
    padding: 15px;
    color: var(--color-text-tertiary);
    font-style: italic;
}

footer {
    margin-top: 30px;
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 0.9em;
    padding-top: 20px;
    border-top: 1px solid var(--color-border-primary);
}

footer a {
    color: var(--color-link);
    text-decoration: none;
}

footer a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

.language-switcher {
    position: absolute;
    top: 20px;
    left: 98%;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
    overflow: visible; /* Убираем прокрутку с основного меню */
}

/* Улучшенная адаптивность для большого количества пунктов меню */
@media (max-width: 1200px) {
    .language-switcher {
        left: auto;
        right: 20px;
    }
}

@media (max-width: 900px) {
    .language-switcher {
        flex-wrap: wrap;
        flex-direction: row;
        gap: 8px;
        max-width: calc(100% - 40px);
    }
    
    .articles-dropdown {
        position: relative;
    }
    
    .articles-menu {
        left: 0; /* Выпадает под кнопкой */
        right: auto;
        max-width: 280px;
        max-height: 50vh;
    }
}

.lang-btn {
    background: var(--gradient-button-base);
    color: var(--color-button-text);
    border: 1px solid var(--color-button-border);
    border-radius: var(--border-radius-sm);
    padding: var(--padding-button);
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-button);
    min-width: 50px;
    position: relative;
    overflow: hidden;
}

.lang-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    transition: left 0.8s ease;
}

.lang-btn:hover::before {
    left: 100%;
}

.lang-btn:hover {
    transform: var(--transform-hover);
    box-shadow: var(--shadow-button-hover);
    background: var(--gradient-button-hover);
}

.lang-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 5px var(--color-shadow-primary), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* .format-select используется вне .format-selector (например, в .language-switcher) */
/* Более специфичный селектор .format-selector .format-select переопределит эти стили */
.format-select {
    background-image: var(--svg-arrow-white), var(--gradient-button-base);
    background-repeat: no-repeat, no-repeat, no-repeat;
    background-position: right 10px center, center, center;
    background-size: 24px 24px, 100% 100%, 100% 100%;
    color: var(--color-button-text);
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 8px 42px 8px 16px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-button);
    min-width: 80px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    outline: none;
}

.format-select:hover {
    transform: var(--transform-hover);
    box-shadow: var(--shadow-button-hover);
    background-image: var(--svg-arrow-white), var(--gradient-button-hover);
}

.format-select:focus {
    outline: none;
    border: none;
    box-shadow: 0 0 0 3px var(--color-shadow-primary), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.format-select option {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    padding: 8px;
}

.articles-dropdown {
    position: relative;
    width: 100%; /* Занимает всю ширину, чтобы меню выпадало правильно */
}

.articles-btn {
    background: var(--gradient-button-base);
    color: var(--color-button-text);
    border: 1px solid var(--color-button-border);
    border-radius: var(--border-radius-sm);
    padding: var(--padding-button);
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-button);
    min-width: 100px;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.articles-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    transition: left 0.8s ease;
}

.articles-btn:hover::before {
    left: 100%;
}

.articles-btn:hover {
    transform: var(--transform-hover);
    box-shadow: var(--shadow-button-hover);
    background: var(--gradient-button-hover);
}

.articles-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 5px var(--color-shadow-primary), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Стили для ссылок в меню (убираем inline стили) */
.menu-link {
    text-decoration: none !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.articles-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 0; /* Выравниваем по левому краю кнопки */
    right: auto;
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-sm);
    box-shadow: 0 4px 20px var(--color-shadow-medium);
    min-width: 100%; /* Ширина равна ширине кнопки */
    width: 300px; /* Фиксированная ширина меню статей */
    max-width: 300px;
    z-index: 1000;
    overflow-y: auto; /* Прокрутка только для списка статей */
    overflow-x: hidden;
    max-height: 400px; /* Максимальная высота перед появлением прокрутки */
    transition: var(--transition-base);
    display: block;
    white-space: nowrap; /* По умолчанию без переноса - одна строка */
}

/* Скрытое состояние меню */
.articles-menu.hidden {
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    visibility: hidden;
}

/* Видимое состояние меню */
.articles-menu:not(.hidden) {
    display: block;
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
    visibility: visible;
}

.articles-menu a {
    display: block;
    padding: 12px 16px;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--color-border-primary);
    font-size: 0.9em;
    white-space: nowrap; /* По умолчанию без переноса - одна строка */
    overflow: hidden;
    text-overflow: ellipsis; /* Обрезаем длинный текст с многоточием */
    line-height: 1.4;
}

/* Класс для статей с переносом текста (применяется автоматически, если текст не помещается) */
.articles-menu a.allow-wrap {
    white-space: normal;
    word-wrap: break-word;
    word-break: break-word;
    text-overflow: clip;
    overflow: visible;
}

.articles-menu a:last-child {
    border-bottom: none;
}

.articles-menu a:hover {
    background: var(--color-bg-secondary);
    color: var(--color-link);
    padding-left: 20px;
}

/* Единая навигационная шапка для статей */
.article-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 15px;
    flex-wrap: wrap;
}

/* Переиспользуемая кнопка "На главную" */
.back-link {
    display: inline-flex;
    align-items: center;
    padding: 0 24px;
    background: var(--color-bg-primary);
    color: var(--color-link);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    transition: var(--transition-base);
    box-shadow: 0 2px 8px var(--color-shadow-light);
    border: 2px solid var(--color-link);
    height: 44px;
    box-sizing: border-box;
}

.back-link:hover {
    transform: var(--transform-hover);
    box-shadow: 0 4px 12px var(--color-shadow-primary);
    background: var(--color-bg-secondary);
    text-decoration: none;
}

.article-nav .back-link {
    margin-bottom: 0;
    flex-shrink: 0;
}

.article-nav .lang-switch-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    padding: 0 16px;
    border: 2px solid var(--color-border-accent);
    border-radius: var(--border-radius-sm);
    background: var(--color-bg-primary);
    transition: var(--transition-base);
    box-shadow: 0 2px 8px var(--color-shadow-light);
    flex-shrink: 0;
    min-width: 50px;
    text-align: center;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.article-nav .lang-switch-link:hover {
    transform: var(--transform-hover);
    box-shadow: 0 4px 12px var(--color-shadow-primary);
    background: var(--color-bg-secondary);
}

.info-section {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid var(--color-border-primary);
}

.info-section h2 {
    font-size: 1.8em;
    color: var(--color-heading-h2);
    margin-bottom: 15px;
    font-weight: 600;
}

.info-section h3 {
    font-size: 1.4em;
    color: var(--color-heading-h3);
    margin-top: 25px;
    margin-bottom: 15px;
    font-weight: 600;
}

.info-section p {
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 15px;
}

.info-section ol,
.info-section ul {
    margin-left: 20px;
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.info-section li {
    margin-bottom: 10px;
}

.info-section strong {
    color: var(--color-primary);
    font-weight: 600;
}

.info-section a {
    color: var(--color-link);
    text-decoration: none;
    font-weight: 600;
}

.info-section a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

/* Дополнительные классы для замены inline стилей */
.format-label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--color-primary);
}

.info-link {
    color: var(--color-link);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid var(--color-link);
    transition: all 0.2s ease;
}

.info-link:hover {
    color: var(--color-link-hover);
    border-bottom-color: var(--color-link-hover);
    text-decoration: none;
}

.cefr-loading {
    text-align: center;
    padding: 20px;
    color: var(--color-text-secondary);
}

.export-vocab-button-nd {
    background: var(--color-cefr-nd) !important;
}

.export-vocab-button-nd:hover {
    background: var(--color-cefr-nd) !important;
    opacity: 0.9;
}

/* Сетка для кнопок экспорта CEFR (3 в ряд + отдельная нижняя) */
.cefr-export-grid {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.cefr-export-grid .export-vocab-button {
    flex: 1 1 calc(33.333% - 16px);
    min-width: 160px;
    max-width: 220px;
}

.cefr-export-grid .export-vocab-button-nd {
    flex: 1 1 100%;
    max-width: 260px;
}

/* Anki блок */
.anki-block {
    margin-top: 18px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--border-radius-md);
    box-shadow: 0 3px 10px var(--color-shadow-light);
    overflow: hidden;
}

.anki-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--color-bg-secondary);
    border: none;
    cursor: pointer;
    font-weight: 700;
    color: var(--color-primary);
}

.anki-toggle:hover {
    background: var(--color-bg-tertiary);
}

.anki-toggle-icon {
    font-size: 0.9em;
    color: var(--color-text-tertiary);
}

.anki-content {
    padding: 12px 16px 16px 16px;
    background: var(--color-bg-primary);
}

.anki-hint {
    font-size: 0.9em;
    color: var(--color-text-secondary);
    margin: 0 0 10px 0;
}

.anki-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 12px;
}

.anki-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 8px;
}

.anki-word {
    display: grid;
    grid-template-columns: 40px 1fr 32px;
    align-items: stretch;
    gap: 4px;
    padding: 0 0;
    background: var(--color-bg-primary);
    border-radius: 14px;
    border: 1px solid var(--color-border-secondary);
    box-shadow: 0 2px 6px var(--color-shadow-light);
    overflow: hidden;
    min-height: 120px;
}

/* Убраны стили для card-face и card-back - больше не нужны */

.anki-level-badge {
    grid-column: 1;
    min-width: 40px;
    width: 40px;
    padding: 0 6px;
    height: auto;
    color: #ffffff;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1em;
    border-radius: 12px;
    flex-shrink: 0;
    box-sizing: border-box;
}

/* Центральный блок с текстом */
.anki-word-body {
    grid-column: 2;
    padding: 5px 5px;
    min-width: 0;
    width: 100%;
    max-width: 100%;
    overflow: visible;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    box-sizing: border-box;
    gap: 8px;
}

.anki-word-text {
    font-weight: 700;
    color: var(--color-text-primary);
    font-size: 2.15em;
    word-wrap: break-word;
    word-break: break-word;
    overflow: visible;
    order: 1;
}

.anki-word-meta {
    font-size: 0.9em;
    color: var(--color-text-tertiary);
    white-space: nowrap;
    order: 4;
    margin-top: auto;
}

.anki-word-phonetic {
    font-size: 1.15em;
    color: var(--color-text-quaternary);
    line-height: 1.3;
    order: 2;
    display: flex;
    align-items: center;
    gap: 4px;
}

.anki-phonetic-text {
    flex: 0 0 auto;
}

.anki-audio-btn {
    background: none !important;
    border: none !important;
    cursor: pointer;
    padding: 0 !important;
    margin: 0 !important;
    font-size: 1.2em !important;
    opacity: 0.7;
    transition: opacity 0.2s, transform 0.1s;
    display: inline-block;
    line-height: 1;
    vertical-align: middle;
    min-width: 20px;
    min-height: 20px;
}

.anki-audio-btn:hover {
    opacity: 1;
}

.anki-audio-btn:active {
    transform: scale(0.9);
}

.anki-word-meaning {
    font-size: 1.1em;
    color: var(--color-text-primary);
    line-height: 1.5;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: normal;
    hyphens: auto;
    white-space: normal;
    min-width: 0;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
    text-align: left;
    flex: 1 1 auto;
    order: 3;
}

/* Убраны все стили для back-body - больше не нужны */

.anki-word input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-link);
    cursor: pointer;
    background: #ffffff;
    border: 1px solid var(--color-border-secondary);
    margin: 0;
}

/* Убраны стили для flip-btn - больше не нужны */

.anki-right {
    grid-column: 3;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    gap: 4px;
    padding-right: 2px;
    flex-shrink: 0;
    width: 32px;
    min-width: 32px;
    box-sizing: border-box;
}

.anki-error {
    color: #c0392b;
    font-size: 0.9em;
    margin-bottom: 10px;
}

/* Стили для формы создания карточек */
.custom-card-form {
    background: var(--color-bg-secondary);
    padding: 16px;
    border-radius: var(--border-radius-md);
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 6px;
    font-size: 0.95em;
}

.form-select,
.form-input,
.form-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--color-border-secondary);
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 1em;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.form-select:focus,
.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-link);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 20px;
}

.custom-cards-list {
    background: var(--color-bg-secondary);
    padding: 16px;
    border-radius: var(--border-radius-md);
}

.custom-card-item {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--border-radius-sm);
    padding: 12px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.custom-card-level {
    min-width: 40px;
    padding: 4px 8px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9em;
    text-align: center;
    color: #ffffff;
}

.custom-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.custom-card-front {
    font-weight: 600;
    color: var(--color-text-primary);
}

.custom-card-back {
    font-size: 0.9em;
    color: var(--color-text-secondary);
}

.custom-card-remove {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-secondary);
    border-radius: 6px;
    padding: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    min-width: 36px;
    min-height: 36px;
    opacity: 1;
    visibility: visible;
}

.custom-card-remove:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-error-bg-end);
    color: var(--color-error-text);
    transform: scale(1.05);
}

.custom-card-remove:active {
    transform: scale(0.95);
}

.custom-card-remove svg {
    width: 18px;
    height: 18px;
    display: block;
}

/* Стили для кнопки "Очистить все" */
.clear-all-button {
    background: linear-gradient(135deg, var(--color-error-bg-start) 0%, var(--color-error-bg-end) 100%) !important;
    color: var(--color-error-text) !important;
    border: 1px solid var(--color-error-border) !important;
    box-shadow: 0 3px 10px var(--color-error-shadow) !important;
    margin-left: 10px;
}

.clear-all-button:hover {
    background: linear-gradient(135deg, var(--color-error-bg-end) 0%, var(--color-error-bg-start) 100%) !important;
    box-shadow: 0 5px 15px var(--color-error-shadow) !important;
    transform: translateY(-2px);
}

.clear-all-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px var(--color-error-shadow) !important;
}

@media (max-width: 1200px) {
    .ad-sidebar {
        display: none;
    }
    
    .page-wrapper {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 30px 20px;
    }
    
    .back-link {
        height: 40px;
        padding: 0 14px;
        font-size: 0.9em;
    }
    
    .language-switcher {
        top: 15px;
        left: 98%;
        right: auto;
    }
    
    .lang-btn,
    .format-select,
    .articles-btn {
        padding: 8px 14px;
        font-size: 0.9em;
    }
    
    .format-selector .format-select {
        padding: 10px 42px 10px 16px;
    }
    
    .format-select {
        min-width: 70px;
        padding-right: 30px;
    }
    
    .format-selector .format-select {
        min-width: 120px;
        padding-right: 42px;
    }
    
    .articles-btn {
        min-width: 90px;
    }
    
    .articles-menu {
        min-width: 220px;
    }
    
    header {
        padding-right: 0;
    }
    
    h1 {
        padding-right: 0;
        word-wrap: break-word;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 25px 20px;
        position: relative;
    }

    .format-selector {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 12px 15px;
    }

    .format-selector .format-select {
        width: 100%;
        min-width: auto;
    }

    h1 {
        font-size: 2em;
        padding-right: 0;
        word-wrap: break-word;
    }

    .upload-section {
        gap: 15px;
    }
    
    .language-switcher {
        top: 15px;
        left: 98%;
        right: auto;
    }
    
    .lang-btn,
    .format-select,
    .articles-btn {
        padding: 6px 12px;
        font-size: 0.85em;
    }
    
    .format-selector .format-select {
        padding: 10px 42px 10px 16px;
    }
    
    .lang-btn {
        min-width: 45px;
    }
    
    .format-select {
        min-width: 65px;
        padding-right: 28px;
    }
    
    .format-selector .format-select {
        min-width: auto;
        padding-right: 42px;
    }
    
    .articles-btn {
        min-width: 85px;
    }
    
    .articles-menu {
        min-width: 200px;
        width: 280px;
        max-width: 280px;
        max-height: 50vh;
        overflow-y: auto;
    }
    
    .info-section h2 {
        font-size: 1.5em;
    }
    
    .info-section h3 {
        font-size: 1.2em;
    }
}

@media (max-width: 400px) {
    .container {
        padding: 20px 15px;
    }
    
    .back-link {
        height: 36px;
        padding: 0 10px;
        font-size: 0.8em;
    }
    
    .language-switcher {
        top: 10px;
        left: 98%;
        right: auto;
    }
    
    .lang-btn,
    .format-select,
    .articles-btn {
        padding: 6px 10px;
        font-size: 0.8em;
    }
    
    .format-selector .format-select {
        padding: 10px 42px 10px 16px;
    }
    
    .lang-btn {
        min-width: 40px;
    }
    
    .format-select {
        min-width: 60px;
        padding-right: 26px;
    }
    
    .format-selector .format-select {
        min-width: auto;
        padding-right: 42px;
    }
    
    .articles-btn {
        min-width: 80px;
    }
    
    .articles-menu {
        min-width: 180px;
        width: 250px;
        max-width: 250px;
        right: auto;
        left: 0;
        max-height: 40vh;
    }
    
    h1 {
        font-size: 1.8em;
        word-wrap: break-word;
    }
}