:root {
            --primary: #1B7E6E;
            --primary-light: #2A9D8F;
            --primary-dark: #155F54;
            --secondary: #F8F9FA;
            --gray-100: #F5F5F7;
            --gray-200: #E8E8ED;
            --gray-300: #D2D2D7;
            --gray-500: #86868B;
            --gray-700: #424245;
            --gray-900: #1D1D1F;
            --accent-green: #E8F5F2;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius-sm: 12px;
            --radius-md: 20px;
            --radius-lg: 28px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--gray-900);
            line-height: 1.6;
            background-color: #fff;
            overflow-x: hidden;
        }

        h1, h2, h3, h4, h5, h6 {
            font-weight: 600;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .display-title {
            font-size: clamp(2.5rem, 6vw, 4.5rem);
            font-weight: 700;
            letter-spacing: -0.03em;
        }

        .section-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 600;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }

        .section-subtitle {
            font-size: 1.125rem;
            color: var(--gray-500);
            font-weight: 400;
            max-width: 600px;
            margin: 0 auto;
        }

        .lang-switcher {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            background: rgba(0,0,0,0.05);
            border-radius: 50px;
            padding: 4px;
        }

        .lang-btn {
            padding: 0.375rem 0.875rem;
            border: none;
            background: transparent;
            color: var(--gray-700);
            font-size: 0.8125rem;
            font-weight: 500;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .lang-btn.active {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .lang-btn:hover:not(.active) {
            color: var(--primary);
        }

        .navbar {
            padding: 1rem 0;
            backdrop-filter: saturate(180%) blur(20px);
            -webkit-backdrop-filter: saturate(180%) blur(20px);
            background-color: rgba(255, 255, 255, 0.72);
            transition: all 0.3s ease;
        }

        .navbar.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .navbar-brand {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--gray-900) !important;
        }

        .navbar-brand span {
            color: var(--primary);
        }

        .nav-link {
            color: var(--gray-700) !important;
            font-weight: 500;
            font-size: 0.9375rem;
            padding: 0.5rem 1rem !important;
            transition: color 0.2s ease;
        }

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

        .btn-nav {
            background-color: var(--primary);
            color: #fff !important;
            border-radius: 50px;
            padding: 0.5rem 1.25rem !important;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .btn-nav:hover {
            background-color: var(--primary-dark);
            transform: scale(1.02);
        }

        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 120px 0 80px;
        }

        .hero-background {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #1B7E6E 0%, #155F54 50%, #0F4940 100%);
            z-index: -2;
        }

        .hero-background::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"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.03"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.03"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
            opacity: 0.5;
        }

        .hero-image-placeholder {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('cdn/img/heor_bg.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: -1;
        }

        .hero-content {
            text-align: center;
            color: #fff;
            max-width: 900px;
            padding: 0 1.5rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(10px);
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.875rem;
            font-weight: 500;
            margin-bottom: 2rem;
            border: 1px solid rgba(255,255,255,0.2);
        }

        .hero-badge svg {
            width: 18px;
            height: 18px;
        }

        .hero-title {
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 20px rgba(0,0,0,0.1);
        }

        .hero-subtitle {
            font-size: clamp(1.125rem, 2.5vw, 1.375rem);
            opacity: 0.9;
            max-width: 650px;
            margin: 0 auto 2.5rem;
            font-weight: 400;
            line-height: 1.7;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }

        .text-container.hero-title {
            text-align: center;
            font-size: clamp(2.5rem, 6vw, 4.5rem);
            font-weight: 700;
            letter-spacing: -0.03em;
            line-height: 1.2;
            color: #fff;
            text-shadow: 0 2px 20px rgba(0,0,0,0.1);
        }

        .text-container.hero-title .subtitle {
            display: inline-block!important;
            font-size: 1.125rem;
            font-weight: 500;
            opacity: 0.85;
            color: #fff;
            margin-top: 0.25rem;
            letter-spacing: 0.05em;
            text-align: right;
            left: 10px;
        }

        .btn-primary-hero {
            background-color: #fff;
            color: var(--primary);
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
        }

        .btn-primary-hero:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0,0,0,0.2);
            color: var(--primary-dark);
        }

        .btn-primary-hero svg,
        .btn-secondary-hero svg {
            width: 20px;
            height: 20px;
        }

        .btn-secondary-hero {
            background-color: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.4);
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
        }

        .btn-secondary-hero:hover {
            background-color: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.6);
            color: #fff;
        }

        .services-section {
            padding: 100px 0;
            background-color: var(--gray-100);
        }

        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .service-card {
            display: flex;
            align-items: center;
            gap: 5rem;
            margin-bottom: 4rem;
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .service-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .service-card.reverse {
            flex-direction: row-reverse;
        }

        .service-image {
            flex: 1;
            max-width: 50%;
        }

        .service-img {
            width: 100%;
            height: auto;
            border-radius: 1.5rem;
            object-fit: cover;
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
            display: block;
        }


        .service-image-placeholder {
            width: 100%;
            aspect-ratio: 4/3;
            background: linear-gradient(145deg, var(--gray-200), var(--gray-300));
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .service-image-placeholder::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            opacity: 0.08;
        }

        .service-image-placeholder svg {
            width: 64px;
            height: 64px;
            color: var(--primary);
            opacity: 0.6;
        }

        .service-content {
            flex: 1;
            max-width: 50%;
        }

        .service-number {
            display: inline-block;
            width: 36px;
            height: 36px;
            background-color: var(--accent-green);
            color: var(--primary);
            border-radius: 50%;
            font-weight: 600;
            font-size: 0.875rem;
            line-height: 36px;
            text-align: center;
            margin-bottom: 1rem;
        }

        .service-title {
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--gray-900);
        }

        .service-description {
            color: var(--gray-500);
            font-size: 1.8rem;
            line-height: 1.7;
        }

        .screenshots-section {
            padding: 100px 0;
            background: #fff;
        }

        .screenshots-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-top: 4rem;
        }

        .screenshot-item {
            text-align: center;
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .screenshot-item.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .screenshot-img {
            width: 100%;
            height: auto;
            border-radius: 1.5rem;
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
            display: block;
        }

        .screenshot-frame {
            background: linear-gradient(180deg, #1D1D1F 0%, #2C2C2E 100%);
            border-radius: 36px;
            padding: 12px;
            box-shadow: var(--shadow-lg);
            margin-bottom: 1.5rem;
            transition: transform 0.4s ease;
        }

        .screenshot-frame:hover {
            transform: translateY(-8px);
        }

        .screenshot-placeholder {
            width: 100%;
            aspect-ratio: 9/19;
            background: linear-gradient(180deg, var(--gray-100) 0%, var(--gray-200) 100%);
            border-radius: 28px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            position: relative;
            overflow: hidden;
        }

        .screenshot-placeholder::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(180deg, var(--primary) 0%, transparent 100%);
            opacity: 0.1;
        }

        .screenshot-placeholder svg {
            width: 40px;
            height: 40px;
            color: var(--primary);
            opacity: 0.5;
        }

        .screenshot-label {
            font-size: 0.75rem;
            color: var(--gray-500);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .screenshot-caption {
            font-weight: 600;
            color: var(--gray-900);
            font-size: 1.0625rem;
        }

        .faq-section {
            padding: 100px 0;
            background-color: var(--gray-100);
        }

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

        .accordion {
            margin-top: 3rem;
        }

        .accordion-item {
            background: #fff;
            border: none !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 1rem;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .accordion-item.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .accordion-button {
            background: #fff !important;
            font-weight: 600;
            font-size: 1.0625rem;
            color: var(--gray-900) !important;
            padding: 1.5rem 2rem;
            border: none;
            box-shadow: none !important;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .accordion-button svg {
            width: 20px;
            height: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary) !important;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231B7E6E'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            width: 1.25rem;
            height: 1.25rem;
        }

        .accordion-body {
            padding: 0 2rem 1.5rem;
            padding-left: 3.75rem;
            color: var(--gray-500);
            line-height: 1.7;
        }

        .footer {
            background: var(--gray-900);
            color: #fff;
            padding: 80px 0 40px;
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .footer-brand span {
            color: var(--primary-light);
        }

        .footer-tagline {
            color: var(--gray-500);
            font-size: 0.9375rem;
            margin-bottom: 2rem;
        }

        .footer-title {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--gray-500);
            margin-bottom: 1.25rem;
            font-weight: 600;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: var(--gray-300);
            text-decoration: none;
            font-size: 0.9375rem;
            transition: color 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-links a svg {
            width: 18px;
            height: 18px;
        }

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

        .footer-social {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .footer-social a {
            width: 44px;
            height: 44px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .footer-social a svg {
            width: 20px;
            height: 20px;
        }

        .footer-social a:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }

        .footer-bottom {
            margin-top: 4rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .footer-copyright {
            color: var(--gray-500);
            font-size: 0.875rem;
        }

        .footer-powered {
            color: var(--gray-500);
            font-size: 0.875rem;
        }

        .footer-powered span {
            color: var(--primary-light);
            font-weight: 600;
        }

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

        .animate-fade-in {
            animation: fadeInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
        }

        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

        @media (max-width: 992px) {
            .service-card {
                flex-direction: column !important;
                gap: 2rem;
            }

            .service-image,
            .service-content {
                max-width: 100%;
            }

            .screenshot-img,
            .service-img {
                border-radius: 1.25rem;
                box-shadow: 0 8px 20px rgba(0,0,0,0.07);
            }

            .screenshots-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hero {
                padding: 100px 0 60px;
            }

            .services-section,
            .screenshots-section,
            .faq-section {
                padding: 60px 0;
            }

            .screenshot-img,
            .service-img {
                border-radius: 1rem;
                box-shadow: 0 6px 16px rgba(0,0,0,0.06);
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary-hero,
            .btn-secondary-hero {
                width: 100%;
                max-width: 280px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .lang-switcher {
                order: -1;
                margin-bottom: 1rem;
            }
        }

        @media (max-width: 576px) {
            .screenshots-grid {
                grid-template-columns: 1fr;
                max-width: 280px;
                margin-left: auto;
                margin-right: auto;
            }

            .screenshot-frame {
                max-width: 240px;
                margin-left: auto;
                margin-right: auto;
            }

            .screenshot-img,
            .service-img {
                border-radius: 0.75rem;
                box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            }
        }