:root {
            --primary: #3b82f6;
            --primary-dark: #2563eb;
            --primary-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
            --bg-dark: #0a0e1a;
            --bg-card: #1a1f2e;
            --bg-card-light: #1f2937;
            --text-primary: #ffffff;
            --text-secondary: #9ca3af;
            --border: #2d3a4a;
            --success: #22c55e;
            --danger: #ef4444;
            --warning: #f59e0b;
        }

        * {
            -webkit-tap-highlight-color: transparent;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html, body {
            overscroll-behavior: none;
            -webkit-overflow-scrolling: touch;
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        .crypto-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            overflow: hidden;
            pointer-events: none;
        }

        .crypto-bg .orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(100px);
            opacity: 0.12;
            animation: floatAmbient 25s infinite ease-in-out;
        }

        .crypto-bg .orb:nth-child(1) {
            width: 400px;
            height: 400px;
            background: #3b82f6;
            top: -10%;
            left: -10%;
        }

        .crypto-bg .orb:nth-child(2) {
            width: 350px;
            height: 350px;
            background: #8b5cf6;
            top: 60%;
            left: 75%;
            animation-delay: -8s;
        }

        .crypto-bg .orb:nth-child(3) {
            width: 280px;
            height: 280px;
            background: #06b6d4;
            top: 20%;
            left: 45%;
            animation-delay: -16s;
        }

        .crypto-bg .orb:nth-child(4) {
            width: 300px;
            height: 300px;
            background: #f59e0b;
            top: 70%;
            left: 10%;
            animation-delay: -24s;
        }

        @keyframes floatAmbient {
            0%, 100% { transform: translate(0, 0) scale(1); }
            33% { transform: translate(40px, -40px) scale(1.08); }
            66% { transform: translate(-25px, 25px) scale(0.92); }
        }

        .crypto-icons {
            position: absolute;
            width: 100%;
            height: 100%;
            pointer-events: none;
        }

        .crypto-icon {
            position: absolute;
            font-size: 24px;
            opacity: 0.06;
            animation: floatIcon 20s infinite linear;
            color: #fff;
        }

        .crypto-icon:nth-child(1) { top: 15%; left: 5%; font-size: 32px; animation-duration: 25s; }
        .crypto-icon:nth-child(2) { top: 25%; right: 8%; font-size: 28px; animation-duration: 30s; animation-delay: -5s; }
        .crypto-icon:nth-child(3) { bottom: 20%; left: 10%; font-size: 40px; animation-duration: 35s; animation-delay: -10s; }
        .crypto-icon:nth-child(4) { bottom: 35%; right: 15%; font-size: 22px; animation-duration: 28s; animation-delay: -15s; }
        .crypto-icon:nth-child(5) { top: 50%; left: 20%; font-size: 18px; animation-duration: 32s; animation-delay: -3s; }
        .crypto-icon:nth-child(6) { top: 70%; right: 25%; font-size: 26px; animation-duration: 26s; animation-delay: -20s; }
        .crypto-icon:nth-child(7) { top: 35%; left: 30%; font-size: 20px; animation-duration: 38s; animation-delay: -8s; }
        .crypto-icon:nth-child(8) { bottom: 50%; right: 40%; font-size: 30px; animation-duration: 22s; animation-delay: -12s; }

        @keyframes floatIcon {
            0% { transform: translate(0, 0) rotate(0deg); }
            25% { transform: translate(15px, -15px) rotate(5deg); }
            50% { transform: translate(-10px, 10px) rotate(-5deg); }
            75% { transform: translate(20px, -8px) rotate(3deg); }
            100% { transform: translate(0, 0) rotate(0deg); }
        }

        .section, .hero, .contact-section {
            position: relative;
            z-index: 1;
        }

        .navbar {
            background: rgba(10, 14, 26, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 24px;
        }

        .navbar .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .navbar .logo-img {
            width: 100px;
            height: 36px;
            border-radius: 12px;
            object-fit: cover;
        }

        .navbar .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
        }

        .lang-selector-wrap {
            position: relative;
        }

        .lang-selector-btn {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            padding: 8px 14px;
            border-radius: 10px;
            cursor: pointer;
            border: 1px solid var(--border);
            color: var(--text-primary);
            font-weight: 500;
            transition: all .2s;
            background: rgba(255, 255, 255, 0.05);
        }

        .lang-selector-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .lang-dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 6px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 14px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
            overflow: hidden;
            z-index: 50;
            display: none;
            min-width: 160px;
            max-height: 400px;
            overflow-y: auto;
            overflow-x: hidden;
        }

        .lang-dropdown.show {
            display: block;
        }

        .lang-dropdown img {
            width: 20px;
            height: 20px;
        }

        .lang-dropdown div {
            padding: 11px 16px;
            cursor: pointer;
            font-size: 13px;
            transition: background .15s;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-primary);
        }

        .lang-dropdown div:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .lang-dropdown div.active {
            background: rgba(59, 130, 246, 0.2);
            color: var(--primary);
            font-weight: 600;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 40px;
            border: none;
            background: var(--primary-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            text-decoration: none;
            transition: all .3s;
            box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 40px;
            border: 2px solid var(--primary);
            background: transparent;
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            text-decoration: none;
            transition: all .3s;
        }

        .btn-outline:hover {
            background: var(--primary-gradient);
            color: #fff;
            border-color: transparent;
        }

        .hero {
            padding: 80px 24px 100px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-bg-video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: -1;
        }

        .hero-bg-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 14, 26, 0.7);
            z-index: -1;
        }

        .hero .hero-inner {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .hero h1 {
            font-size: clamp(36px, 5vw, 56px);
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.2;
            background: linear-gradient(135deg, #fff, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 36px;
        }

        .hero .hero-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 48px;
            justify-content: center;
            margin-top: 60px;
            flex-wrap: wrap;
        }

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

        .hero .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
        }

        .hero .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .section {
            padding: 80px 24px;
        }

        .section-inner {
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            font-size: 36px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            text-align: center;
            max-width: 600px;
            margin: 0 auto 48px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all .3s;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .feature-card .f-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
            background: rgba(59, 130, 246, 0.15);
            color: var(--primary);
        }

        .feature-card h6 {
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .feature-card span {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .prices-section {
            background: linear-gradient(180deg, transparent, rgba(59, 130, 246, 0.05));
        }

        .price-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .price-card {
            background: var(--bg-card);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all .3s;
        }

        .price-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
        }

        .price-card-header {
            padding: 16px 20px 8px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .price-info {
            display: flex;
            align-items: baseline;
            gap: 12px;
            flex-wrap: wrap;
        }

        .price-symbol {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-primary);
        }

        .price-name {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .price-current {
            font-weight: 700;
            font-size: 20px;
            color: var(--primary);
        }

        .price-change {
            font-size: 12px;
            padding: 3px 8px;
            border-radius: 20px;
            font-weight: 600;
        }

        .price-change.up {
            background: rgba(34, 197, 94, 0.15);
            color: var(--success);
        }

        .price-change.down {
            background: rgba(239, 68, 68, 0.15);
            color: var(--danger);
        }

        .price-chart {
            height: 100px;
            width: 100%;
            background: transparent;
            cursor: pointer;
        }

        .price-stats {
            padding: 10px 16px 14px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            font-size: 11px;
            color: var(--text-secondary);
            flex-wrap: wrap;
            gap: 8px;
        }

        .price-stats span {
            color: var(--text-primary);
            font-weight: 600;
        }

        .contact-section {
            background: linear-gradient(180deg, transparent, rgba(59, 130, 246, 0.05));
        }

        .contact-form {
            max-width: 640px;
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: 24px;
            padding: 40px 36px;
            border: 1px solid var(--border);
        }

        .contact-form .form-label {
            font-weight: 600;
            font-size: 13px;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .contact-form .form-control,
        .contact-form .form-select {
            border-radius: 12px;
            border: 1px solid var(--border);
            padding: 12px 16px;
            font-size: 14px;
            transition: all .2s;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
        }

        .contact-form .form-control:focus,
        .contact-form .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
            background: rgba(255, 255, 255, 0.08);
            outline: none;
        }

        .contact-form .form-control::placeholder {
            color: var(--text-secondary);
        }

        .btn-submit {
            width: 100%;
            padding: 14px;
            border-radius: 40px;
            border: none;
            background: var(--primary-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            transition: all .3s;
            margin-top: 16px;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
        }

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

        .field-error {
            font-size: 11px;
            color: var(--danger);
            margin-top: 4px;
            display: none;
        }

        .footer {
            background: var(--bg-card);
            text-align: center;
            padding: 32px 24px;
            font-size: 13px;
            color: var(--text-secondary);
            border-top: 1px solid var(--border);
        }

        .toast-message {
            position: fixed;
            top: 80px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 300;
            padding: 12px 24px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            animation: slideDown .3s ease;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        @keyframes slideDown {
            from {
                transform: translateX(-50%) translateY(-100%);
                opacity: 0;
            }
            to {
                transform: translateX(-50%) translateY(0);
                opacity: 1;
            }
        }

        .page-loader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--bg-dark);
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 16px;
            transition: opacity 0.3s ease;
        }

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

        .page-loader .loader-spinner {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 3px solid rgba(59, 130, 246, 0.2);
            border-top-color: var(--primary);
            animation: spin 0.8s linear infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .navbar {
                padding: 12px 16px;
            }
            .section {
                padding: 48px 16px;
            }
            .section-title {
                font-size: 28px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 32px;
            }
            .hero {
                padding: 40px 16px 60px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero p {
                font-size: 15px;
            }
            .hero .hero-buttons {
                flex-direction: row;
                justify-content: center;
                gap: 12px;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 40px;
            }
            .hero .stat-num {
                font-size: 24px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .price-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .price-card-header {
                padding: 12px 12px 6px 12px;
            }
            .price-symbol {
                font-size: 14px;
            }
            .price-name {
                font-size: 10px;
            }
            .price-current {
                font-size: 16px;
            }
            .price-change {
                font-size: 10px;
                padding: 2px 6px;
            }
            .price-chart {
                height: 70px;
            }
            .price-stats {
                padding: 8px 12px;
                font-size: 9px;
            }
            .contact-form {
                padding: 24px 20px;
            }
            .btn-primary, .btn-outline {
                padding: 12px 20px;
                font-size: 14px;
            }
        }

        @media (max-width: 480px) {
            .price-grid {
                gap: 20px;
            }
            .price-card-header {
                padding: 8px 8px 4px 8px;
            }
            .price-info {
                gap: 6px;
            }
            .price-symbol {
                font-size: 12px;
            }
            .price-current {
                font-size: 14px;
            }
            .price-chart {
                height: 60px;
            }
            .price-stats {
                font-size: 8px;
                flex-wrap: wrap;
                gap: 4px;
            }
        }