:root {
    --font-primary: 'Poppins', sans-serif;
    --font-russian: 'Montserrat', sans-serif;
    --color-primary: #2fc6f6;
    --color-secondary: #00a2e8;
    --color-accent: #00a2e8;
    --color-white: #ffffff;
    --color-black: #1a1a1a;
    --color-gray: #666666;
    --color-light-gray: #f5f5f5;
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --section-padding: 5rem;
    --card-padding: 2rem;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

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

ul, ul li {
    list-style: none!important;
    list-style-type: none!important;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 2rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-gray);
    margin-bottom: 3rem;
    text-align: center;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-text {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-gray);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 16px;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border-radius: 8px;
    transition: all 0.2s ease;
    min-width: 140px;
    height: 48px;
    border: none;
}

.btn-primary {
    color: #ffffff;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-outline {
    color: var(--color-primary);
    background-color: transparent;
    border: 2px solid var(--color-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-outline:hover {
    color: var(--color-white);
    background: var(--gradient-primary);
    transform: translateY(-1px);
    border-color: transparent;
}

.btn-outline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: -1;
}

.btn-outline:hover::before {
    opacity: 1;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.hero-buttons .btn {
    min-width: 160px;
}

.case-action .btn {
    min-width: 180px;
    padding: 12px 32px;
}

.form-submit {
    text-align: center;
    margin-top: 32px;
}

.form-submit .btn {
    min-width: 200px;
    padding: 12px 32px;
}

@media (max-width: 768px) {
    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn,
    .case-action .btn,
    .form-submit .btn {
        width: 100%;
    }
}

.navbar-brand {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-gray);
}

.testimonial-text {
    font-size: 1.1rem;
    font-weight: 400;
    font-style: italic;
}

.testimonial-author {
    font-size: 1rem;
    font-weight: 600;
}

.testimonial-position {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-gray);
}

.form-label {
    font-weight: 500;
}

.form-control {
    font-family: var(--font-primary);
    font-weight: 400;
}

.footer-link {
    font-weight: 500;
}

.social-icon {
    font-size: 1.25rem;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-text {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1.1rem;
    }
}

/* Navigation */
.navbar {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar-nav {
    display: flex;
    gap: 1.5rem;
    margin-right: 2rem;
    align-items: center;
}

.nav-link {
    font-family: var(--font-primary);
    color: var(--color-black);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s ease;
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-link.active {
    color: var(--color-primary) !important;
}

.nav-link.active::after {
    transform: scaleX(1);
}

.logo {
    height: 40px;
    width: auto;
    max-width: 180px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logo:hover {
    transform: translateY(-2px) scale(1.05);
    filter: drop-shadow(0 4px 8px rgba(47, 198, 246, 0.3));
}

.logo::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, rgba(47, 198, 246, 0.1), rgba(0, 162, 232, 0.1));
    border-radius: 4px;
    opacity: 0;
    transition: all 0.4s ease;
    z-index: -1;
}

.logo:hover::after {
    opacity: 1;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
}

.lang-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: 2rem;
}

.lang-switcher a {
    text-decoration: none;
    color: var(--color-gray);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lang-switcher a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: all 0.2s ease;
    z-index: -1;
}

.lang-switcher a:hover {
    color: var(--color-white);
    background: var(--gradient-primary);
    transform: translateY(-1px);
}

.lang-switcher a:hover::before {
    opacity: 1;
}

.lang-switcher a.active {
    color: var(--color-white);
    background: var(--gradient-primary);
    box-shadow: 0 2px 4px rgba(47, 198, 246, 0.2);
}

.lang-switcher a.active:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(47, 198, 246, 0.3);
}

/* Russian Language Specific Styles */
[lang="ru"] {
    font-family: var(--font-russian);
}

[lang="ru"] h1,
[lang="ru"] h2,
[lang="ru"] h3,
[lang="ru"] h4,
[lang="ru"] h5,
[lang="ru"] h6 {
    font-family: var(--font-russian), sans-serif;
}

[lang="ru"] .hero-title,
[lang="ru"] .section-title,
[lang="ru"] .case-title,
[lang="ru"] .feature-title,
[lang="ru"] .benefit-title {
    font-family: var(--font-russian), sans-serif;
    font-weight: 700;
}

[lang="ru"] .btn {
    font-family: var(--font-russian), sans-serif;
}

@media (max-width: 768px) {
    .lang-switcher {
        margin-left: 1rem;
    }

    .lang-switcher a {
        padding: 0.4rem 0.8rem;
        font-size: 13px;
    }
}

/* Hero Section */
.hero-section {
    padding: 160px 0 100px;
    background: var(--color-white);
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.7);
    z-index: 1;
}

.hero-section > .container {
    position: relative;
    z-index: 2;
}

.hero-text {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    max-width: 600px;
    opacity: 1;
    visibility: visible;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* Features Section */
.features-section {
    padding: var(--section-padding);
    background: linear-gradient(120deg, #eaf6ff 0%, #f8fbff 100%);
    position: relative;
}

.feature-card, .benefit-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--card-padding);
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    border: 1px solid var(--color-light-gray);
}

.feature-card:hover, .benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.feature-icon i {
    font-size: 24px;
}

/* Benefits Section */
.benefits-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.benefits-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    opacity: 0.05;
    pointer-events: none;
}

.benefit-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    height: 100%;
    transition: all 0.2s ease;
    border: 1px solid rgba(47, 198, 246, 0.1);
}

.benefit-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.benefit-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: #ffffff;
    font-size: 1.5rem;
    transition: all 0.2s ease;
}

.benefit-card:hover .benefit-icon {
    transform: rotate(5deg);
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
    position: relative;
    padding-bottom: 0.5rem;
}

.benefit-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    border-radius: 2px;
    transition: width 0.2s ease;
}

.benefit-card:hover .benefit-title::after {
    width: 50px;
}

.benefit-text {
    color: #666666;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.6;
}

.benefit-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.benefit-list li {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    color: #1a1a1a;
    font-size: 1rem;
    padding-left: 1.5rem;
    position: relative;
    transition: all 0.2s ease;
}

.benefit-list li:hover {
    transform: translateX(3px);
}

.benefit-list i {
    color: #2fc6f6;
    margin-right: 0.75rem;
    font-size: 1.1rem;
    transition: all 0.2s ease;
}

.benefit-list li:hover i {
    transform: scale(1.2);
}

@media (max-width: 768px) {
    .benefits-section {
        padding: 3rem 0;
    }

    .benefit-card {
        padding: 2rem;
        margin-bottom: 1.5rem;
    }

    .benefit-icon {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
    }

    .benefit-title {
        font-size: 1.25rem;
    }

    .benefit-text {
        font-size: 0.95rem;
    }

    .benefit-list li {
        font-size: 0.95rem;
    }
}

/* Case Studies Section */
.case-studies-section {
    background: var(--color-white);
    padding: var(--section-padding);
    position: relative;
}

.case-studies-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0.1;
}

.case-study-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    height: 100%;
    transition: all 0.2s ease;
    border: 1px solid rgba(47, 198, 246, 0.1);
}

.case-study-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.case-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a1a1a;
    position: relative;
    padding-bottom: 0.5rem;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.case-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    border-radius: 2px;
    transition: width 0.2s ease;
}

.case-study-card:hover .case-title::after {
    width: 50px;
}

.case-description {
    color: #666666;
    margin-bottom: 32px;
    font-size: 18px;
    line-height: 1.6;
    position: relative;
    padding-left: 24px;
}

.case-description::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 4px;
    height: 40px;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    border-radius: 4px;
    opacity: 0.5;
}

.case-stats {
    margin-bottom: 32px;
    background: rgba(47, 198, 246, 0.03);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid rgba(47, 198, 246, 0.1);
    transition: all 0.4s ease;
}

.case-study-card:hover .case-stats {
    background: rgba(47, 198, 246, 0.05);
    border-color: rgba(47, 198, 246, 0.2);
}

.stat-card {
    background: #ffffff;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
    border: 1px solid rgba(47, 198, 246, 0.1);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(47, 198, 246, 0.05), rgba(0, 162, 232, 0.05));
    opacity: 0;
    transition: all 0.4s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: #2fc6f6;
    margin-bottom: 8px;
    position: relative;
    display: inline-block;
}

.stat-value::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.stat-card:hover .stat-value::after {
    width: 50px;
}

.stat-label {
    font-size: 16px;
    color: #666666;
    font-weight: 500;
}

.case-features {
    margin-bottom: 32px;
    position: relative;
}

.case-features h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1a1a1a;
    position: relative;
    padding-left: 32px;
}

.case-features h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: #2fc6f6;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(47, 198, 246, 0.2);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
    color: #1a1a1a;
    font-size: 17px;
    padding-left: 32px;
    position: relative;
    transition: all 0.3s ease;
}

.feature-list li:hover {
    transform: translateX(5px);
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: #2fc6f6;
    border-radius: 50%;
    opacity: 0.5;
}

.feature-list i {
    color: #2fc6f6;
    margin-right: 12px;
    font-size: 18px;
    transition: all 0.3s ease;
}

.feature-list li:hover i {
    transform: scale(1.2);
}

.case-testimonial {
    background: rgba(47, 198, 246, 0.03);
    padding: 28px;
    border-radius: 12px;
    margin-bottom: 32px;
    position: relative;
    border: 1px solid rgba(47, 198, 246, 0.1);
    transition: all 0.4s ease;
}

.case-study-card:hover .case-testimonial {
    background: rgba(47, 198, 246, 0.05);
    border-color: rgba(47, 198, 246, 0.2);
}

.case-testimonial::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    border-radius: 4px;
}

.case-testimonial blockquote {
    margin: 0;
    padding: 0;
}

.case-testimonial p {
    font-style: italic;
    margin-bottom: 16px;
    color: #1a1a1a;
    font-size: 18px;
    line-height: 1.6;
    position: relative;
    padding-left: 24px;
}

.case-testimonial p::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -10px;
    font-size: 48px;
    color: rgba(47, 198, 246, 0.2);
    font-family: serif;
    line-height: 1;
}

.case-testimonial footer {
    color: #666666;
    font-size: 15px;
    padding-left: 24px;
}

.case-testimonial footer strong {
    color: #1a1a1a;
    font-weight: 600;
}

.case-action {
    text-align: center;
    margin-top: 32px;
    position: relative;
}

.case-action .btn {
    min-width: 200px;
    padding: 14px 36px;
    font-weight: 600;
    border-width: 2px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.case-action .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    opacity: 0;
    transition: all 0.4s ease;
    z-index: -1;
}

.case-action .btn:hover {
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-3px);
}

.case-action .btn:hover::before {
    opacity: 1;
}

@media (max-width: 768px) {
    .case-study-card {
        margin-bottom: 32px;
        padding: 24px;
    }

    .case-title {
        font-size: 24px;
    }

    .case-description {
        font-size: 16px;
        padding-left: 16px;
    }

    .stat-value {
        font-size: 28px;
    }

    .case-action .btn {
        min-width: 100%;
    }
}

/* Contact Form Styles */
.contact-form {
    background: #ffffff;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(47, 198, 246, 0.1);
    transition: all 0.2s ease;
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -1rem;
}

.form-col {
    flex: 0 0 100%;
    padding: 0 1rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .form-col {
        flex: 0 0 50%;
    }
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-label {
    font-weight: 500;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
    display: block;
    font-size: 0.95rem;
}

.form-control, .form-select {
    border: 1px solid rgba(47, 198, 246, 0.2);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    background-color: #ffffff;
    height: 48px;
    color: #1a1a1a;
    box-shadow: none;
    width: 100%;
}

.form-control:focus, .form-select:focus {
    border-color: #2fc6f6;
    box-shadow: 0 0 0 2px rgba(47, 198, 246, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: #999999;
    font-size: 0.9rem;
}

.form-group.has-icon {
    position: relative;
}

.form-group.has-icon input {
    padding-left: 3rem;
}

.form-group.has-icon i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-primary);
    font-size: 1.1rem;
    transition: all 0.2s ease;
    width: 1.1rem;
    text-align: center;
}

.form-group.has-icon input:focus + i {
    transform: translateY(-50%) scale(1.05);
}

.form-group.has-icon.whatsapp i {
    color: #25D366;
}

.form-group.has-icon.telegram i {
    color: #0088cc;
}

textarea.form-control {
    height: auto;
    min-height: 120px;
    resize: vertical;
}

.form-submit {
    text-align: center;
    margin-top: 2rem;
}

.form-submit .btn {
    min-width: 200px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    background: linear-gradient(135deg, #2fc6f6, #00a2e8);
    color: #ffffff;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.form-submit .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(47, 198, 246, 0.2);
}

/* Form Validation Styles */
.form-control.is-invalid {
    border-color: #dc3545;
    background-image: none;
}

.form-control.is-invalid:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

@media (max-width: 768px) {
    .contact-form {
        padding: 2rem;
    }

    .form-submit .btn {
        min-width: 100%;
    }

    .form-group.has-icon i {
        font-size: 1rem;
    }
}

/* Comparison Table Styles */
.comparison-section {
    background: var(--color-light-gray);
    padding: var(--section-padding);
    position: relative;
}

.comparison-table {
    background: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
    margin: 2rem 0;
    border: 1px solid var(--color-light-gray);
}

.comparison-table th {
    background: var(--color-white);
    color: var(--color-black);
    padding: 1.5rem;
    font-weight: 600;
    text-align: center;
    position: relative;
    border-bottom: 2px solid var(--color-light-gray);
    vertical-align: middle;
}

.comparison-table th:first-child {
    text-align: left;
    background: var(--color-white);
    color: var(--color-black);
}

.comparison-table td {
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-light-gray);
    vertical-align: middle;
    color: var(--color-black);
}

.comparison-feature {
    font-weight: 600;
    color: var(--color-black);
    font-size: 1.1rem;
}

.comparison-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.comparison-icon {
    font-size: 1.25rem;
    min-width: 24px;
}

.comparison-check {
    color: var(--color-primary);
}

.comparison-cross {
    color: var(--color-gray);
}

.comparison-text {
    font-size: 0.95rem;
    color: var(--color-gray);
    line-height: 1.5;
    margin: 0;
}

.comparison-table tr:hover td {
    background-color: rgba(47, 198, 246, 0.05);
}

.comparison-table th:not(:first-child) {
    border-left: 1px solid var(--color-light-gray);
}

[dir="rtl"] .comparison-table th:not(:first-child) {
    border-left: none;
    border-right: 1px solid var(--color-light-gray);
}

@media (max-width: 768px) {
    .navbar-nav {
        margin-right: 1rem;
    }

    .footer-links {
        gap: 1rem;
    }

    .footer-links a {
        padding: 0.5rem;
    }

    .comparison-table {
        display: block;
        overflow-x: auto;
    }

    .comparison-table th,
    .comparison-table td {
        min-width: 250px;
    }
}

/* Footer Styles */
.footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    color: var(--color-white);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    opacity: 0.2;
}

.footer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(47, 198, 246, 0.03) 0%, rgba(0, 162, 232, 0.03) 100%);
    pointer-events: none;
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 2rem;
    filter: brightness(0) invert(1);
    transition: all 0.3s ease;
}

.footer-logo:hover {
    transform: translateY(-2px);
    filter: brightness(0) invert(1) drop-shadow(0 4px 8px rgba(47, 198, 246, 0.3));
}

.footer-title {
    color: var(--color-white);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    position: relative;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
}

.footer-contact {
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.contact-item i {
    color: var(--color-primary);
    font-size: 1.25rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-white);
    transform: translateX(5px);
}

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-social a {
    color: var(--color-white);
    font-size: 1.5rem;
    transition: all 0.3s ease;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.footer-social a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    opacity: 0;
    transition: all 0.3s ease;
    z-index: -1;
}

.footer-social a:hover {
    transform: translateY(-3px);
    color: var(--color-white);
    box-shadow: 0 8px 20px rgba(47, 198, 246, 0.3);
}

.footer-social a:hover::before {
    opacity: 1;
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    position: relative;
}

.footer-bottom::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    animation: pulseLine 3s ease-in-out infinite;
}

@keyframes pulseLine {
    0% {
        opacity: 0.2;
        width: 50px;
    }
    50% {
        opacity: 0.9;
        width: 400px;
    }
    100% {
        opacity: 0.2;
        width: 50px;
    }
}

@media (max-width: 768px) {
    .footer {
        padding: 3rem 0 1.5rem;
        margin-top: 3rem;
    }

    .footer-title {
        margin-top: 2rem;
    }

    .footer-contact {
        margin-top: 1.5rem;
    }

    .footer-social {
        justify-content: center;
    }
}

/* Dropdown Menu Styles */
.nav-item.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    display: none;
    min-width: 200px;
    padding: 0.5rem 0;
    margin: 0;
    background-color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
}

.nav-item.dropdown:hover .dropdown-menu {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--color-black);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.dropdown-item:hover {
    color: var(--color-primary);
    background-color: var(--color-light-gray);
}

.dropdown-item:hover::after {
    opacity: 1;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .nav-item.dropdown {
        position: static;
    }

    .dropdown-menu {
        position: static;
        display: none;
        width: 100%;
        box-shadow: none;
        border-top: 1px solid var(--color-light-gray);
        opacity: 1;
        transform: none;
    }

    .nav-item.dropdown:hover .dropdown-menu {
        display: block;
    }

    .dropdown-item {
        padding: 0.75rem 1rem;
    }

    .dropdown-item::after {
        display: none;
    }
}

/* Добавленные анимации и эффекты для "живости" сайта */


/* Эффект наведения на карточки с масштабированием */
.feature-card, .benefit-card, .case-study-card {
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s ease;
}

.feature-card:hover, .benefit-card:hover, .case-study-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

/* Пульсирующие иконки в карточках */
.feature-icon, .benefit-icon {
    position: relative;
    overflow: hidden;
}

.feature-icon::after, .benefit-icon::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: scale(0);
    opacity: 0;
    z-index: 1;
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.8);
        opacity: 0.3;
    }
    50% {
        opacity: 0.1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* Улучшенные анимации для кнопок */
.btn {
    position: relative;
    overflow: hidden;
}

.btn:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    z-index: 1;
}

.btn:hover:after {
    width: 300%;
    height: 300%;
}

.btn span {
    position: relative;
    z-index: 2;
}

/* Эффект наведения для навигационных ссылок */
.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

/* Анимированный фон для секций */
.benefits-section, .features-section, .case-studies-section {
    position: relative;
    overflow: hidden;
}

.animated-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, rgba(47, 198, 246, 0.05) 0%, rgba(47, 198, 246, 0) 100%);
    z-index: -1;
    transform: translateX(-100%);
    animation: slide-bg 15s infinite alternate;
}

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

/* Плавная анимация статистики при появлении в поле зрения */
.stat-value {
    transition: color 0.3s ease;
}

.stat-value.animate {
    animation: count-up 2s ease-out forwards;
}

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

/* Анимированные декоративные элементы */
.decorative-circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(47, 198, 246, 0.1), rgba(0, 162, 232, 0.1));
    z-index: -1;
    animation: float 6s ease-in-out infinite alternate;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
    100% {
        transform: translateY(0) rotate(0deg);
    }
}

/* Улучшенная анимация прелоадера */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease;
    overflow: hidden;
}

.preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

.preloader-logo {
    width: 180px;
    height: 40px;
    margin-bottom: 2rem;
    animation: pulse 2s infinite;
}

.preloader-progress {
    width: 200px;
    height: 4px;
    background: var(--color-light-gray);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.preloader-progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    transform-origin: left;
    transform: scaleX(0);
    will-change: transform;
    transition: transform 0.1s linear;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    }
    50% {
        transform: scale(1.05);
        filter: drop-shadow(0 4px 8px rgba(47, 198, 246, 0.3));
    }
    100% {
        transform: scale(1);
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    }
}

/* Улучшенная анимация для социальных иконок */
.footer-social a {
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.footer-social a:hover {
    transform: translateY(-5px) scale(1.1);
}

/* Анимированный градиентный фон для заголовков секций */
.section-title {
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    background-size: 200% 200%;
    animation: gradient-shift 3s ease infinite;
}

@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Анимированные иконки в списках */
.feature-list i {
    transition: transform 0.3s ease, color 0.3s ease;
}

.feature-list li:hover i {
    transform: rotate(360deg);
    color: var(--color-primary);
}

/* Анимированные кнопки */
.cta-button-animated {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    border: none;
    border-radius: 50px;
    color: white;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.25);
    transition: all 0.3s ease;
    z-index: 1;
    cursor: pointer;
}

.cta-button-animated:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--color-secondary), var(--color-primary));
    transition: all 0.6s ease;
    z-index: -1;
}

.cta-button-animated:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 123, 255, 0.4);
}

.cta-button-animated:hover:before {
    left: 0;
}

.cta-button-animated:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.2);
}

.cta-button-animated .button-icon {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.cta-button-animated:hover .button-icon {
    transform: translateX(5px);
}

/* Пульсирующая анимация для кнопки */
.cta-button-pulse {
    animation: button-pulse 2s infinite;
}

@keyframes button-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 123, 255, 0.6);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(0, 123, 255, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 123, 255, 0);
    }
}

/* Плавающая кнопка вызова действия */
.floating-cta {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 12px 24px;
    background: var(--color-primary);
    color: white;
    border-radius: 50px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    font-weight: bold;
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
}

.floating-cta:hover {
    background: var(--color-secondary);
    padding: 12px 30px;
    transform: translateY(-5px);
}

.floating-cta .icon {
    margin-right: 8px;
    transition: transform 0.3s ease;
}

.floating-cta:hover .icon {
    transform: rotate(15deg);
}

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

/* Анимированные заголовки секций */
.animated-title {
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.animated-title:after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: width 0.7s ease;
}

.animated-title.active:after,
.section:hover .animated-title:after {
    width: 100%;
}

/* Анимированные карточки с hover-эффектом */
.animated-card {
    background: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    top: 0;
}

.animated-card:hover {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-10px);
}

.animated-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.animated-card:hover:before {
    opacity: 1;
}

.animated-card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--color-primary);
    transition: transform 0.3s ease;
}

.animated-card:hover .animated-card-icon {
    transform: scale(1.2);
}

/* Анимация загрузки прогресса */
.progress-bar {
    position: relative;
    height: 8px;
    width: 100%;
    background: #eee;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    position: absolute;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 4px;
    transition: width 1.5s ease;
}

.progress-bar.active .progress-fill {
    animation: progress-animation 2.5s ease-out forwards;
}

@keyframes progress-animation {
    0% {
        width: 0;
    }
    100% {
        width: var(--progress-width);
    }
}

/* Анимированный счетчик */
.counter-box {
    text-align: center;
    margin-bottom: 20px;
}

.counter-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.counter-label {
    font-size: 0.9rem;
    color: var(--color-gray);
}

/* Отключение дублирующей полосы под меню */
.nav-link::before {
    display: none !important;
    content: none !important;
}

html {
    overflow-y: scroll;
}

/* --- Custom active menu styles (site-wide style) --- */
.navbar-nav .nav-item.active,
.navbar-nav .nav-item.active:focus,
.navbar-nav .nav-item.active:hover {
    color: var(--color-primary) !important;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    border-radius: 8px;
    transition: all 0.2s;
}

.dropdown-menu .dropdown-item.active,
.dropdown-menu .dropdown-item.active:focus,
.dropdown-menu .dropdown-item.active:hover {
    color: #fff !important;
    background: var(--gradient-primary) !important;
    font-weight: 600;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(47,198,246,0.10);
    transition: all 0.2s;
}

@media (max-width: 600px) {
    .footer {
        padding: 1.5rem 0 0.7rem 0 !important;
        margin-top: 2rem !important;
        border-radius: 1.1rem 1.1rem 0 0;
    }
    .footer-title {
        font-size: 1.05rem !important;
        margin-bottom: 1rem !important;
        margin-top: 1.2rem !important;
        text-align: center !important;
    }
    .footer-contact {
        margin-top: 1rem !important;
        text-align: center !important;
    }
    .contact-item {
        gap: 0.5rem !important;
        margin-bottom: 0.6rem !important;
        font-size: 0.97rem !important;
        justify-content: center !important;
    }
    .contact-item i {
        font-size: 1.1rem !important;
    }
    .footer-links {
        gap: 0.5rem !important;
        margin: 1.2rem 0 1.2rem 0 !important;
        align-items: center !important;
    }
    .footer-links a {
        font-size: 1.01rem !important;
        padding: 0.3rem 0 !important;
        text-align: center !important;
    }
    .footer-social {
        gap: 0.7rem !important;
        margin: 1.2rem 0 0.7rem 0 !important;
        justify-content: center !important;
    }
    .footer-social a {
        width: 38px !important;
        height: 38px !important;
        font-size: 1.15rem !important;
    }
    .footer-bottom {
        margin-top: 1.2rem !important;
        padding-top: 1rem !important;
        font-size: 0.97rem !important;
    }
    .footer-bottom::before {
        width: 90px !important;
    }
}