/* Базовые стили */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            background-color: #070a13;
            color: #f1f5f9;
            line-height: 1.6;
            overflow-x: hidden;
            width: 100%;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            text-decoration: none;
            color: inherit;
        }

        /* Шапка сайта (Header) */
        header {
            background-color: rgba(7, 10, 19, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo {
            font-size: 24px;
            font-weight: 900;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            z-index: 1001;
        }
        .logo-icon {
            width: 22px;
            height: 22px;
            background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
            border-radius: 6px;
            display: inline-block;
            box-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
        }

        /* Навигация */
        nav ul {
            display: flex;
            list-style: none;
            gap: 28px;
        }
        nav ul li a {
            font-size: 15px;
            font-weight: 500;
            color: #94a3b8;
            transition: color 0.3s;
        }
        nav ul li a:hover {
            color: #06b6d4;
        }

        /* Кнопка гамбургер-меню */
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: space-between;
            width: 28px;
            height: 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: 1001;
        }
        .menu-toggle span {
            display: block;
            height: 2px;
            width: 100%;
            background-color: #f1f5f9;
            border-radius: 2px;
            transition: 0.3s;
        }

        /* Главный баннер (Hero) */
        .hero {
            position: relative;
            padding: 120px 0 90px 0;
            text-align: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: min(100vw, 600px);
            height: 400px;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, rgba(59, 130, 246, 0.03) 60%, transparent 100%);
            z-index: -1;
            filter: blur(50px);
            pointer-events: none;
        }
        .hero h1 {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            background: linear-gradient(to right, #ffffff, #cbd5e1, #60a5fa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero p {
            font-size: clamp(16px, 2.5vw, 20px);
            color: #94a3b8;
            max-width: 760px;
            margin: 0 auto 35px auto;
        }
        .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            justify-content: center;
            align-items: center;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
            text-align: center;
        }
        .btn-primary {
            background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
            color: #ffffff;
            box-shadow: 0 4px 20px rgba(6, 182, 212, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(6, 182, 212, 0.4);
        }
        .btn-secondary {
            background-color: rgba(255, 255, 255, 0.03);
            color: #cbd5e1;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }

        /* Партнеры */
        .partners {
            padding: 30px 0;
            background-color: rgba(255, 255, 255, 0.01);
            border-top: 1px solid rgba(255, 255, 255, 0.03);
        }
        .partners-inner {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 24px 40px;
            opacity: 0.45;
        }
        .partner-logo {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: #94a3b8;
            text-transform: uppercase;
        }

        /* Статистика */
        .stats {
            padding: 50px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 30px 20px;
            text-align: center;
        }
        .stat-item h3 {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 900;
            background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 6px;
        }
        .stat-item p {
            font-size: 13px;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Решения (Solutions) */
        .solutions, .cases, .calculator-section, .faq, .contact {
            padding: 80px 0;
        }
        .section-title {
            text-align: center;
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 900;
            margin-bottom: 12px;
            color: #ffffff;
        }
        .section-subtitle {
            text-align: center;
            font-size: 15px;
            color: #64748b;
            max-width: 600px;
            margin: 0 auto 50px auto;
        }
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        .card {
            background-color: #0d1325;
            border: 1px solid rgba(255, 255, 255, 0.04);
            padding: 30px 24px;
            border-radius: 12px;
            transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(6, 182, 212, 0.3);
            box-shadow: 0 10px 25px -10px rgba(6, 182, 212, 0.2);
        }
        .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background-color: rgba(6, 182, 212, 0.08);
            font-size: 22px;
            border-radius: 10px;
            margin-bottom: 20px;
        }
        .card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #ffffff;
        }
        .card p {
            font-size: 14px;
            color: #94a3b8;
        }

        /* Кейсы */
        .cases {
            background-color: rgba(255, 255, 255, 0.005);
            border-top: 1px solid rgba(255, 255, 255, 0.03);
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .case-card {
            background-color: #0d1325;
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: 12px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .case-header {
            background: linear-gradient(135deg, #121829 0%, #1e293b 100%);
            padding: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
        }
        .case-tag {
            display: inline-block;
            background-color: rgba(6, 182, 212, 0.12);
            color: #06b6d4;
            font-size: 11px;
            font-weight: 700;
            text-transform: uppercase;
            padding: 4px 10px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .case-header h3 {
            font-size: 18px;
            font-weight: 800;
            color: #ffffff;
        }
        .case-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .case-desc {
            font-size: 14px;
            color: #94a3b8;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        .case-metrics {
            display: flex;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 16px;
            gap: 10px;
        }
        .metric-num {
            font-size: 18px;
            font-weight: 800;
            color: #06b6d4;
        }
        .metric-label {
            font-size: 11px;
            color: #64748b;
            text-transform: uppercase;
        }

        /* Калькулятор */
        .calculator-section {
            background-color: rgba(255, 255, 255, 0.01);
            border-top: 1px solid rgba(255, 255, 255, 0.03);
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
        }
        .calc-wrapper {
            max-width: 700px;
            margin: 0 auto;
            background-color: #0d1325;
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: 16px;
            padding: 36px 24px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }
        .calc-title {
            text-align: center;
            font-size: clamp(20px, 3vw, 24px);
            font-weight: 800;
            margin-bottom: 24px;
            color: #ffffff;
        }
        .calc-group {
            margin-bottom: 20px;
        }
        .calc-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: #94a3b8;
            margin-bottom: 8px;
        }
        .calc-select {
            width: 100%;
            background-color: #070a13;
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #ffffff;
            padding: 14px;
            border-radius: 8px;
            outline: none;
            font-size: 15px;
            cursor: pointer;
        }
        .calc-result {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
        }
        .calc-price {
            font-size: clamp(24px, 4vw, 32px);
            font-weight: 900;
            color: #06b6d4;
            text-shadow: 0 0 15px rgba(6, 182, 212, 0.3);
        }

        /* FAQ */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: #0d1325;
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-trigger {
            width: 100%;
            background: none;
            border: none;
            padding: 20px;
            text-align: left;
            font-size: 15px;
            font-weight: 700;
            color: #ffffff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 15px;
        }
        .faq-icon {
            font-size: 20px;
            color: #06b6d4;
            transition: transform 0.2s ease;
            flex-shrink: 0;
        }
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease-out, padding 0.2s;
            color: #94a3b8;
            font-size: 14px;
            padding: 0 20px;
        }
        .faq-item.active .faq-content {
            padding: 0 20px 20px 20px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* Форма контактов */
        .contact-wrapper {
            max-width: 550px;
            margin: 0 auto;
            background-color: #0d1325;
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: 16px;
            padding: 40px 24px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: #94a3b8;
            margin-bottom: 8px;
        }
        .form-group input, .form-group textarea {
            width: 100%;
            background-color: #070a13;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 14px;
            color: #ffffff;
            font-size: 16px;
            outline: none;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .form-group input:focus, .form-group textarea:focus {
            border-color: #06b6d4;
        }
        .submit-btn {
            width: 100%;
            background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
            border: none;
            color: #ffffff;
            padding: 16px;
            font-size: 16px;
            font-weight: 700;
            border-radius: 8px;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(6, 182, 212, 0.2);
            transition: opacity 0.2s;
        }
        .submit-btn:hover {
            opacity: 0.95;
        }

        /* Подвал */
        footer {
            background-color: #05070d;
            color: #475569;
            padding: 40px 0;
            font-size: 13px;
            border-top: 1px solid rgba(255, 255, 255, 0.03);
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* Адаптивность для мобильных */
        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #070a13;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding: 24px 20px;
                transform: translateY(-150%);
                opacity: 0;
                transition: transform 0.3s ease, opacity 0.3s ease;
                z-index: 999;
            }
            nav.open {
                transform: translateY(0);
                opacity: 1;
            }
            nav ul {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }
            nav ul li a {
                font-size: 18px;
                display: block;
                padding: 6px 0;
            }
            .btn-group {
                flex-direction: column;
            }
            .btn {
                width: 100%;
            }
            .solutions, .cases, .calculator-section, .faq, .contact {
                padding: 60px 0;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }