/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-bg);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 10px 0;
    z-index: 1000;
    border-top: 1px solid var(--border-color);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    font-size: 12px;
    padding: 8px 10px; /* Увеличил отступы для лучшей тапаемости */
    transition: color 0.3s ease;
    min-height: 50px; /* Обеспечиваем минимальную высоту для удобства нажатия */
}

.nav-item.active {
    color: var(--accent-color);
}

.nav-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 4px;
}

/* Full Menu (Mobile) */
.full-menu {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-bg);
    transform: translateY(100%);
    transition: transform 0.3s ease;
    z-index: 1001;
    padding: 20px;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
}

.full-menu.active {
    transform: translateY(0);
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.close-menu {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 24px;
    cursor: pointer;
}

.menu-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.menu-link {
    color: var(--text-color);
    text-decoration: none;
    padding: 10px;
    border-radius: 8px;
    background: var(--card-bg-alt);
}

.menu-category {
    margin-bottom: 10px;
}

.menu-category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: var(--card-bg-alt);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
}

.menu-category-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 10px;
}

.menu-category-content.expanded {
    max-height: 200px; /* Adjust based on content */
}

.menu-category-content a.menu-link {
    display: block;
    margin: 5px 0;
}

.menu-category-arrow {
    transition: transform 0.3s ease;
    fill: var(--icon-color);
}

.menu-category-arrow.rotated {
    transform: rotate(180deg);
}

.theme-toggle {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    margin-top: 15px;
    font-weight: 500;
}

/* Responsive */
@media (min-width: 768px) {
    .mobile-nav {
        display: none;
    }

    .section-title {
        font-size: 3.5rem;
    }

    .hero-title {
        font-size: 4.5rem;
    }

    .hero-subtitle {
        font-size: 1.8rem;
    }

    #business .section-wrapper {
        flex-direction: row;
    }

    #about .cards-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    #about .card:nth-child(1) {
        grid-row: span 1;
    }

    #about .card:nth-child(3) {
        grid-column: span 1;
    }
}

@media (max-width: 767px) {
    #business .section-wrapper {
        flex-direction: column;
    }

    #business .content {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    #features .section-wrapper {
        flex-direction: column;
    }

    #features .content {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    #features .business-stats,
    #business .business-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .business-pricing {
        width: 100%;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.popular {
        transform: scale(1);
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-10px);
    }
    
    /* Benefits list responsive styles for both business and features sections */
    .benefits-list {
        grid-template-columns: 1fr !important; /* Override any existing grid columns */
    }

    #about .cards-grid {
        grid-template-columns: 1fr;
    }
    
    /* Оптимизация сложной сетки в секции "О проекте" для мобильных устройств */
    #about .card:nth-child(1) {
        grid-row: auto;
        margin-bottom: 20px;
    }
    
    #about .card:nth-child(3) {
        grid-column: auto;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }
}

/* Улучшаем отображение сетки карточек на очень маленьких экранах */
@media (max-width: 480px) {
    .cards-grid {
        gap: 20px;
        margin-top: 30px;
    }
    
    .card {
        padding: 20px 15px;
        min-height: 160px;
    }
    
    .card-icon {
        width: 50px;
        height: 50px;
        margin: 0 auto 10px;
    }
    
    .card-title {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .card-text {
        font-size: 0.95rem;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 10px;
        line-height: 1.3;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 30px;
        line-height: 1.5;
    }
    
    /* Additional responsive styles for business section */
    .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    .benefit-item {
        padding: 18px;
    }
    
    .benefit-icon {
        width: 20px;
        height: 20px;
        top: 18px;
        right: 18px;
    }
    
    .benefit-item h4 {
        font-size: 1.1rem;
        margin-right: 25px;
    }
    
    .benefit-item p {
        font-size: 0.95rem;
    }
    
    .pricing-card {
        padding: 25px 15px;
    }
    
    .card-price {
        font-size: 1.5rem;
    }
    
    .card-title {
        font-size: 1.4rem;
    }
    
    .card-desc {
        font-size: 1rem;
    }
    
    .pricing-header {
        margin-bottom: 25px;
    }
    
    .pricing-title {
        font-size: 1.6rem;
    }
    
    .pricing-subtitle {
        font-size: 1rem;
    }
    
    .card-features li {
        padding: 8px 0;
        font-size: 0.95rem;
    }
    
    /* Hero section adjustments */
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2.2rem;
        margin-bottom: 15px;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 30px;
        line-height: 1.5;
    }
    
    .btn {
        padding: 15px 30px;
        font-size: 1rem;
        min-height: 45px;
    }
    
    .btn-primary {
        margin-right: 10px;
    }
    
    .hero-buttons {
        gap: 15px;
        flex-direction: column;
        align-items: center;
    }
    
    .testimonial-content p {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .testimonial-author {
        font-size: 0.95rem;
    }
}

/* Additional responsive fixes for complex layouts */
@media (max-width: 767px) {
    /* Fix for sections with asymmetrical layouts */
    .section-wrapper {
        flex-direction: column !important;
    }
    
    .content {
        padding-right: 0 !important;
        margin-bottom: 40px !important;
    }
    
    .business-pricing,
    .pricing-cards {
        width: 100% !important;
    }
    
    /* Adjust stats for mobile */
    .business-stats {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
    
    .stat-item {
        padding: 20px 10px !important;
    }
    
    /* Adjust benefits list for mobile */
    .benefits-list {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
    
    /* Adjust pricing cards for mobile */
    .pricing-cards {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
    
    .pricing-card.popular {
        transform: scale(1) !important;
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-5px) !important;
    }
    
    /* Ensure proper spacing on mobile */
    section {
        padding: 60px 0 !important;
    }
    
    /* Adjust container padding */
    .container {
        padding: 0 15px !important;
    }
    
    /* Fix for staggered grid in about section */
    #about .cards-grid {
        grid-template-columns: 1fr !important;
    }
    
    #about .card:nth-child(1) {
        grid-row: auto !important;
        margin-bottom: 20px !important;
    }
    
    #about .card:nth-child(3) {
        grid-column: auto !important;
    }
}

/* Extra small screens */
@media (max-width: 360px) {
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    .card {
        padding: 18px 12px;
        min-height: 140px;
    }
    
    .card-title {
        font-size: 1.2rem;
    }
    
    .benefit-item {
        padding: 15px;
    }
    
    .pricing-card {
        padding: 20px 12px;
    }
    
    .btn {
        padding: 14px 25px;
        font-size: 0.95rem;
    }
}

/* Mobile navigation fixes */
@media (max-width: 767px) {
    /* Ensure mobile navigation is properly sized */
    .mobile-nav {
        padding: 12px 0;
    }
    
    .nav-item {
        min-height: 55px;
        padding: 10px 8px;
        font-size: 11px;
    }
    
    .nav-icon {
        width: 22px;
        height: 22px;
        margin-bottom: 3px;
    }
    
    /* Adjust full menu for better mobile experience */
    .full-menu {
        padding: 15px;
    }
    
    .menu-header {
        margin-bottom: 15px;
    }
    
    .menu-link {
        padding: 12px;
        font-size: 1rem;
    }
    
    /* Ensure all content is properly spaced on mobile */
    .section-content {
        padding: 0 10px;
    }
    
    /* Fix for decorative elements on mobile */
    .decoration.circle {
        width: 150px;
        height: 150px;
    }
}