/* Сброс стилей и общие настройки */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Хедер */
.header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo h1 {
    color: #667eea;
    font-size: 24px;
    font-weight: 600;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #667eea;
}

.language-switcher {
    display: flex;
    gap: 5px;
}

.lang-btn {
    background: transparent;
    border: 1px solid #ddd;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-btn.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.lang-btn:hover:not(.active) {
    border-color: #667eea;
    color: #667eea;
}

/* Hero секция */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 50px;
    opacity: 0.9;
}

/* Конвертер виджет */
.converter-widget {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    max-width: 600px;
    margin: 0 auto;
    color: #333;
}

.upload-area {
    border: 2px dashed #ddd;
    border-radius: 12px;
    padding: 60px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fafafa;
}

.upload-area:hover {
    border-color: #667eea;
    background: #f8f9ff;
}

.upload-area.drag-over {
    border-color: #667eea;
    background: #f0f4ff;
    transform: scale(1.02);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.upload-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.upload-subtitle {
    font-size: 16px;
    color: #666;
    margin-bottom: 15px;
}

.upload-formats {
    font-size: 14px;
    color: #999;
}

/* Прогресс секция */
.progress-section {
    text-align: center;
    padding: 30px 20px;
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.file-info {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    text-align: left;
    font-size: 14px;
    color: #495057;
    align-self: stretch; /* Растягиваем на всю ширину, не влияя на центрирование других элементов */
}

.processing-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 30px auto;
    width: 100%;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.status-text {
    font-size: 18px;
    font-weight: 500;
    color: #667eea;
    margin-bottom: 25px;
    text-align: center;
    width: 100%;
}

/* Успех секция */
.success-section {
    text-align: center;
    padding: 40px 20px;
}

.success-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.success-title {
    font-size: 28px;
    font-weight: 600;
    color: #28a745;
    margin-bottom: 10px;
}

.success-subtitle {
    font-size: 16px;
    color: #666;
    margin-bottom: 30px;
}

.success-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Ошибка секция */
.error-section {
    text-align: center;
    padding: 40px 20px;
}

.error-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.error-title {
    font-size: 28px;
    font-weight: 600;
    color: #dc3545;
    margin-bottom: 10px;
}

.error-message {
    font-size: 16px;
    color: #666;
    margin-bottom: 30px;
}

/* Кнопки */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: all 0.3s ease;
    min-width: 120px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

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

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

/* Возможности */
.features {
    padding: 80px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.feature-description {
    color: #666;
    line-height: 1.6;
}

/* О сервисе */
.about {
    padding: 80px 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 25px;
    color: #555;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 25px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 12px;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

/* FAQ */
.faq {
    padding: 80px 0;
    background: #f8f9fa;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
    padding: 25px 30px;
    font-weight: 600;
    cursor: pointer;
    background: white;
    border-left: 4px solid #667eea;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #f8f9ff;
}

.faq-answer {
    padding: 0 30px 25px;
    color: #666;
    line-height: 1.7;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Контакты */
.contact {
    padding: 80px 0;
    text-align: center;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info p {
    font-size: 18px;
    margin-bottom: 40px;
    color: #555;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    color: #666;
}

.contact-icon {
    font-size: 20px;
}

/* Футер */
.footer {
    background: #2c3e50;
    color: white;
    padding: 50px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: #ecf0f1;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section ul li a,
.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    margin-bottom: 8px;
}

.footer-section ul li a:hover,
.footer-section a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

/* Уведомления */
.notification {
    position: fixed;
    top: 80px;
    right: 20px;
    background: #333;
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    z-index: 1001;
    max-width: 350px;
    animation: slideIn 0.3s ease;
}

.notification.success {
    background: #28a745;
}

.notification.error {
    background: #dc3545;
}

.notification.warning {
    background: #ffc107;
    color: #333;
}

.notification-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.notification-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 20px;
    cursor: pointer;
    opacity: 0.8;
}

.notification-close:hover {
    opacity: 1;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Адаптивность */
@media (max-width: 768px) {
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .nav {
        display: none;
    }
    
    .language-switcher {
        display: flex;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .converter-widget {
        padding: 30px 20px;
        margin: 0 10px;
    }
    
    .upload-area {
        padding: 40px 15px;
    }
    
    .upload-title {
        font-size: 20px;
    }
    
    .about-content {
        max-width: 800px;
        margin: 0 auto;
        text-align: center;
    }
    
    .success-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-methods {
        flex-direction: column;
        gap: 20px;
    }
    
    .notification {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .logo h1 {
        font-size: 20px;
    }
    
    .lang-btn {
        padding: 4px 8px;
        font-size: 12px;
    }
    
    /* Адаптивность прогресс-бара */
    .upload-progress {
        margin-top: 15px;
        margin-bottom: 15px;
    }
    
    .progress-label {
        font-size: 13px;
        margin-bottom: 6px;
    }
    
    .upload-progress-bar {
        height: 6px;
    }
    
    .progress-text {
        font-size: 11px;
        margin-top: 6px;
    }
}

/* Анимации */
.fade-in {
    animation: fadeIn 0.5s ease;
}

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

/* Скрытие элементов */
.hidden {
    display: none !important;
}

/* Стили для прогресс-бара при загрузке */
.upload-progress {
    margin-top: 20px;
    margin-bottom: 20px;
}

.progress-label {
    font-size: 14px;
    color: #6c757d;
    margin-bottom: 8px;
    font-weight: 500;
}

.upload-progress-bar {
    width: 100%;
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.upload-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #28a745, #20c997);
    width: 0%;
    transition: width 0.3s ease;
    position: relative;
}

.upload-progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3), 
        transparent
    );
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    font-size: 12px;
    color: #6c757d;
    text-align: center;
    margin-top: 8px;
    font-weight: 500;
}

/* Стили для drag and drop состояний */
.upload-area.processing {
    border-color: #ffc107;
    background: #fff9e6;
}

.upload-area.success {
    border-color: #28a745;
    background: #f0fff4;
}

.upload-area.error {
    border-color: #dc3545;
    background: #fff5f5;
}

/* Дополнительные стили для стабильности центрирования */
.progress-section .processing-indicator,
.progress-section .status-text {
    margin-left: auto;
    margin-right: auto;
}

/* Cookie Consent Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #2c3e50;
    color: white;
    padding: 20px;
    z-index: 10000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    transform: translateY(100%);
    transition: transform 0.3s ease-in-out;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.cookie-banner-text {
    flex: 1;
    font-size: 14px;
    line-height: 1.5;
}

.cookie-banner-text h3 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
}

.cookie-banner-text p {
    margin: 0;
    opacity: 0.9;
}

.cookie-banner-text a {
    color: #74b9ff;
    text-decoration: underline;
}

.cookie-banner-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.cookie-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.cookie-btn-primary {
    background: #74b9ff;
    color: white;
}

.cookie-btn-primary:hover {
    background: #0984e3;
}

.cookie-btn-secondary {
    background: transparent;
    color: white;
    border: 1px solid #74b9ff;
}

.cookie-btn-secondary:hover {
    background: #74b9ff;
    color: white;
}

.cookie-btn-settings {
    background: transparent;
    color: #74b9ff;
    border: 1px solid #74b9ff;
    text-decoration: underline;
}

.cookie-btn-settings:hover {
    background: #74b9ff;
    color: white;
    text-decoration: none;
}

/* Cookie Settings Modal */
.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10001;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.cookie-modal.show {
    display: flex;
}

.cookie-modal-content {
    background: white;
    border-radius: 12px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.cookie-modal-header {
    padding: 24px 24px 0 24px;
    border-bottom: 1px solid #e9ecef;
}

.cookie-modal-header h2 {
    margin: 0 0 16px 0;
    font-size: 24px;
    color: #2c3e50;
}

.cookie-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #6c757d;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.cookie-modal-close:hover {
    background: #f8f9fa;
}

.cookie-modal-body {
    padding: 24px;
}

.cookie-category {
    margin-bottom: 24px;
    padding: 20px;
    border: 1px solid #e9ecef;
    border-radius: 8px;
}

.cookie-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.cookie-category-title {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
}

.cookie-toggle {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.cookie-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.cookie-toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.3s;
    border-radius: 24px;
}

.cookie-toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

.cookie-toggle input:checked + .cookie-toggle-slider {
    background-color: #74b9ff;
}

.cookie-toggle input:checked + .cookie-toggle-slider:before {
    transform: translateX(26px);
}

.cookie-toggle input:disabled + .cookie-toggle-slider {
    background-color: #6c757d;
    cursor: not-allowed;
}

.cookie-category-description {
    color: #6c757d;
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.cookie-modal-footer {
    padding: 20px 24px 24px 24px;
    border-top: 1px solid #e9ecef;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Cookie Settings Link in Footer */
.cookie-settings-link {
    color: #74b9ff;
    text-decoration: underline;
    cursor: pointer;
    font-size: 14px;
    margin-left: 15px;
}

.cookie-settings-link:hover {
    color: #0984e3;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .cookie-banner-content {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }
    
    .cookie-banner-actions {
        flex-direction: column;
    }
    
    .cookie-btn {
        width: 100%;
        text-align: center;
    }
    
    .cookie-modal-content {
        margin: 10px;
        max-height: 90vh;
    }
    
    .cookie-modal-footer {
        flex-direction: column;
    }
    
    .cookie-modal-footer .cookie-btn {
        width: 100%;
    }
}