/* Основные переменные и сброс стилей - Connect Line Theme */
:root {
    --primary-color: #475569;
    --secondary-color: #64748b;
    --accent-color: #059669;
    --success-color: #16a34a;
    --text-color: #1e293b;
    --light-text: #64748b;
    --white: #ffffff;
    --light-bg: #f8fafc;
    --dark-bg: #0f172a;
    --bg-gradient: linear-gradient(135deg, #475569 0%, #64748b 100%);
    --hero-gradient: linear-gradient(135deg, #475569 0%, #64748b 50%, #94a3b8 100%);
    --card-gradient: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 16px;
    --shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --border-color: #e2e8f0;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Montserrat', sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
    background: var(--light-bg);
    font-weight: 400;
    letter-spacing: -0.01em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    position: relative;
    z-index: 2;
}

/* Типографика */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    color: var(--text-color);
    font-weight: 800;
    background: var(--hero-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 6px;
    background: var(--hero-gradient);
    margin: 24px auto 0;
    border-radius: 3px;
    animation: pulse 2s infinite;
}

/* Прелоадер - Connect Line Style */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--hero-gradient);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.6s ease-out, visibility 0.6s ease-out;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite, pulse 2s ease-in-out infinite;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Шапка сайта */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.header.scrolled {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.header.scroll-down {
    transform: translateY(-100%);
}

.header.scroll-up {
    transform: translateY(0);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: block;
    width: 140px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    width: 100%;
    height: auto;
}

/* Главное меню */
.main-nav {
    margin-left: auto;
    margin-right: 40px;
}

.nav-list {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-list a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary-color);
}

.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}

.has-submenu {
    position: relative;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    padding: 12px 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 10;
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li a {
    display: block;
    padding: 8px 20px;
    color: var(--text-color);
}

/* Правая часть шапки */
.header__right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.phone-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

/* Удаляем стили для переключателя языков */
.lang-switch,
.lang-current,
.lang-list {
    display: none;
}

/* Медиа-запросы для мобильных устройств */
@media (max-width: 768px) {
    .lang-switch {
        margin-left: 10px;
    }
    
    .lang-current {
        font-size: 14px;
        padding: 4px 8px;
    }
    
    .lang-list {
        right: -10px;
    }
}

/* Бургер-меню */
.burger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.burger-menu span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    margin: 6px 0;
    transition: all 0.3s ease;
}

/* Главный экран */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 150px 0;
    display: flex;
    align-items: center;
    background: linear-gradient(to bottom, #F8F9FA, #FFFFFF);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--hero-gradient);
    opacity: 0.9;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.floating-element {
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 12px 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2rem;
    animation: slideInUp 0.8s ease-out;
}

.hero__title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 2rem;
    animation: slideInUp 0.8s ease-out 0.2s both;
}

.title-line-1, .title-line-2, .title-line-3 {
    display: block;
    margin-bottom: 0.5rem;
}

.title-line-1 {
    font-size: 3.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.title-line-2 {
    font-size: 4.5rem;
    background: linear-gradient(45deg, #ffffff, #f1f5f9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-line-3 em {
    color: var(--accent-color);
    font-style: normal;
    text-shadow: 0 0 30px rgba(6, 182, 212, 0.5);
}

.hero__subtitle {
    font-size: 1.3rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: slideInUp 0.8s ease-out 0.4s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    animation: slideInUp 0.8s ease-out 0.6s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: slideInUp 0.8s ease-out 0.8s both;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    border: 2px solid white;
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(255, 255, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    animation: bounce 2s infinite;
}

.scroll-text {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-arrow svg {
    width: 24px;
    height: 24px;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Секция технологий Connect Line */
.technologies {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.technologies::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--primary-color) 50%, transparent 100%);
}

.technologies-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--light-text);
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.tech-categories {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.tech-category {
    padding: 12px 24px;
    border-radius: 50px;
    border: 2px solid var(--border-color);
    background: var(--white);
    color: var(--light-text);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.tech-category:hover,
.tech-category.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.technologies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 5rem;
}

.tech-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--hero-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.tech-card:hover::before {
    transform: scaleX(1);
}

.tech-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.tech-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    transition: var(--transition);
}

.tech-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--white);
}

.tech-card:hover .tech-icon {
    transform: scale(1.1) rotate(5deg);
}

.tech-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.tech-card p {
    color: var(--light-text);
    line-height: 1.6;
}

/* Секция преимуществ Connect Line */
.advantages {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--primary-color) 50%, transparent 100%);
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.advantage-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--hero-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    transition: var(--transition);
}

.advantage-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--white);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1) rotate(5deg);
}

.advantage-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.advantage-card p {
    color: var(--light-text);
    line-height: 1.6;
}

.card-hover-effect {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(99, 102, 241, 0.05), transparent);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.advantage-card:hover .card-hover-effect {
    opacity: 1;
    animation: shimmer 1.5s ease-in-out;
}

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

/* Секция услуг Connect Line */
.services {
    padding: 120px 0;
    background: var(--light-bg);
    position: relative;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.service-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 3rem 2.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--hero-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    transition: var(--transition);
}

.service-icon svg {
    width: 40px;
    height: 40px;
    fill: var(--white);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(10deg);
}

.service-card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.service-card p {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.service-features {
    list-style: none;
    text-align: left;
    margin-top: 1.5rem;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--light-text);
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* Секция достижений */
.achievements {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    position: relative;
    overflow: hidden;
}

.achievements-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="20" cy="20" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="80" cy="30" r="1.5" fill="rgba(255,255,255,0.05)"/><circle cx="30" cy="80" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="70" cy="70" r="1.5" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
    animation: float 20s linear infinite;
}

.achievements__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    text-align: center;
}

.achievement-item {
    color: white;
    text-align: center;
}

.achievement-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    backdrop-filter: blur(10px);
}

.achievement-icon svg {
    width: 30px;
    height: 30px;
    fill: white;
}

.achievement-number {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.achievement-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    opacity: 0.9;
}

/* Responsive для секции технологий */
@media (max-width: 768px) {
    .technologies {
        padding: 80px 0;
    }
    
    .tech-categories {
        gap: 1rem;
        margin-bottom: 3rem;
    }
    
    .tech-category {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .technologies-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-bottom: 3rem;
    }
      .tech-card {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .tech-categories {
        flex-direction: column;
        align-items: center;
    }
}

/* Map placeholder styles */
.map-placeholder {
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.map-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="20" cy="20" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="80" cy="30" r="1.5" fill="rgba(255,255,255,0.05)"/><circle cx="30" cy="80" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="70" cy="70" r="1.5" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
    animation: float 20s linear infinite;
}

.map-content {
    text-align: center;
    color: white;
    z-index: 2;
    position: relative;
}

.map-content h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.map-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    cursor: pointer;
}

.btn-outline:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
    .map-placeholder {
        height: 300px;
    }
    
    .map-content h4 {
        font-size: 1.25rem;
    }
    
    .map-content p {
        font-size: 1rem;
    }
    
    .btn-outline {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* Секция партнеров/клиентов Connect Line */
.partners {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
}

.partners-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--light-text);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.partners-categories {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    padding: 1rem 0;
    position: relative;
    z-index: 1;
}

.partner-category {
    padding: 12px 24px;
    border-radius: 25px;
    border: 2px solid var(--border-color);
    background: var(--white);
    color: var(--light-text);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    font-size: 0.9rem;
    margin: 0 8px 8px 0;
    display: inline-block;
    position: relative;
    z-index: 1;
}

.partner-category:hover,
.partner-category.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
    z-index: 2;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.partner-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.partner-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--hero-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.partner-card:hover::before {
    transform: scaleX(1);
}

.partner-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.partner-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.partner-logo {
    width: 80px;
    height: 60px;
    border-radius: 12px;
    background: var(--white);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.partner-logo:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.partner-logo img {
    width: 70px;
    height: 50px;
    object-fit: contain;
}

.partner-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.partner-info p {
    color: var(--light-text);
    font-size: 0.95rem;
}

.partner-description {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.partner-results {
    margin-top: 1.5rem;
}

.partner-result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-color);
}

.partner-result-item svg {
    width: 16px;
    height: 16px;
    fill: var(--success-color);
    flex-shrink: 0;
}

/* Секция отзывов Connect Line */
.testimonials {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--primary-color) 50%, transparent 100%);
}

.testimonials-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-item {
    opacity: 0;
    visibility: hidden;
    transform: translateX(50px);
    transition: all 0.5s ease-in-out;
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
}

.testimonial-item.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    position: relative;
}

.testimonial-content {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
}

.testimonial-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--hero-gradient);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.testimonial-text {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 2rem;
    font-style: italic;
    position: relative;
}

.testimonial-text::before {
    content: '"';
    font-size: 4rem;
    color: var(--primary-color);
    position: absolute;
    top: -1rem;
    left: -1rem;
    opacity: 0.3;
    font-family: serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.author-info p {
    color: var(--light-text);
    font-size: 0.9rem;
}

.testimonials-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
}

.nav-prev, .nav-next {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--white);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.nav-prev:hover, .nav-next:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.nav-prev svg, .nav-next svg {
    width: 20px;
    height: 20px;
    fill: var(--text-color);
    transition: var(--transition);
}

.nav-prev:hover svg, .nav-next:hover svg {
    fill: var(--white);
}

.testimonials-dots {
    display: flex;
    gap: 0.75rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active,
.dot:hover {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* Секция workflow (Как мы работаем) Connect Line */
.workflow {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.workflow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--primary-color) 50%, transparent 100%);
}

.workflow__steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    position: relative;
    margin-top: 2rem;
}

.workflow-step {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 3rem 2.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.workflow-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--hero-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.workflow-step:hover::before {
    transform: scaleX(1);
}

.workflow-step:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0 auto 2rem;
    position: relative;
    z-index: 2;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.workflow-step:hover .step-number {
    transform: scale(1.1) rotate(10deg);
}

.step-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.step-content p {
    color: var(--light-text);
    line-height: 1.6;
}

.workflow-decoration {
    position: relative;
    margin-top: 4rem;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--primary-color) 20%, var(--secondary-color) 80%, transparent 100%);
    border-radius: 1px;
}

.line-path {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--hero-gradient);
    transform: translateY(-50%);
    animation: flowLine 3s ease-in-out infinite;
}

@keyframes flowLine {
    0%, 100% {
        opacity: 0.3;
        transform: translateY(-50%) scaleX(0.5);
    }
    50% {
        opacity: 1;
        transform: translateY(-50%) scaleX(1);
    }
}

/* Contact section styles */
.contact-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
}

.contact-description {
    text-align: center;
    font-size: 1.25rem;
    color: var(--light-text);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-details {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    border-radius: 12px;
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--light-bg);
    transform: translateX(5px);
}

.contact-item svg {
    width: 24px;
    height: 24px;
    fill: var(--primary-color);
    flex-shrink: 0;
}

.contact-item a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--primary-color);
}

.contact-form {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 3rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    background: var(--white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group label {
    position: absolute;
    top: 50%;
    left: 1.5rem;
    transform: translateY(-50%);
    color: var(--light-text);
    font-size: 1rem;
    transition: var(--transition);
    pointer-events: none;
    background: var(--white);
    padding: 0 0.5rem;
}

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

.form-group textarea + label {
    top: 2rem;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: 0;
    font-size: 0.85rem;
    color: var(--primary-color);
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(99, 102, 241, 0.4);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Footer styles */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 3rem 0 2rem;
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

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

.footer-logo {
    display: block;
    width: 140px;
}

.footer-logo img {
    width: 100%;
    height: auto;
}

.copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
    flex-wrap: wrap;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

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

/* Responsive styles для partners и testimonials */
@media (max-width: 768px) {
    .partners {
        padding: 80px 0;
    }
    
    .partners-categories {
        gap: 1rem;
        margin-bottom: 2.5rem;
    }
    
    .partner-category {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .partner-card {
        padding: 2rem;
    }
    
    .testimonials {
        padding: 80px 0;
    }
    
    .testimonial-content {
        padding: 2rem;
    }
    
    .testimonial-text {
        font-size: 1.1rem;
    }
    
    .testimonials-nav {
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .nav-prev, .nav-next {
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .partners-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .partner-card {
        padding: 1.5rem;
    }
    
    .partner-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .testimonial-content {
        padding: 1.5rem;
    }
    
    .testimonial-text {
        font-size: 1rem;
    }
    
    .testimonials-nav {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Стили для секции workflow и contact на мобильных устройствах */
@media (max-width: 768px) {
    .workflow {
        padding: 80px 0;
    }
    
    .workflow__steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .workflow-step {
        padding: 2.5rem 2rem;
    }
    
    .contact-section {
        padding: 80px 0;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-form {
        padding: 2.5rem;
    }
    
    .footer__content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-nav ul {
        justify-content: center;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .workflow__steps {
        gap: 1.5rem;
    }
    
    .workflow-step {
        padding: 2rem 1.5rem;
    }
    
    .contact-form {
        padding: 2rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.875rem 1.25rem;
    }
      .footer-nav ul {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Дополнительные стили для правильного отображения Grid Layout */

/* Секция преимуществ */
.advantages {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.advantage-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    transition: var(--transition);
}

.advantage-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--white);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1) rotate(5deg);
}

.advantage-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.advantage-card p {
    color: var(--light-text);
    line-height: 1.6;
}

/* Секция услуг */
.services {
    padding: 120px 0;
    background: var(--light-bg);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.service-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 3rem 2.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    transition: var(--transition);
}

.service-icon svg {
    width: 40px;
    height: 40px;
    fill: var(--white);
}

/* Секция достижений */
.achievements__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    text-align: center;
}

/* Workflow секция */
.workflow__steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    position: relative;
    margin-top: 2rem;
}

.workflow-step {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 3rem 2.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.workflow-step:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

/* Партнеры/клиенты */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.partner-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.partner-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .advantages__grid,
    .services__grid,
    .achievements__grid,
    .workflow__steps,
    .partners-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .advantages__grid,
    .services__grid,
    .achievements__grid,
    .workflow__steps,
    .partners-grid {
        gap: 1.5rem;
    }
}