/* Combined stylesheet generated by refactor script */
/* ============================================== */
/* CSS Variables & Theme */
/* ============================================== */

:root {
/* Colors */
            --primary: #19A861;
            --primary-light: #0FB57A;
            --primary-dark: #0A7C5E;
            --gradient: linear-gradient(135deg, var(--primary), var(--primary-light), var(--primary-dark));
            --text: #1A1D29;
            --text-secondary: #5A6175;
            --text-muted: #8F95B2;
            --bg: #FFFFFF;
            --bg-secondary: #F8FAFC;
            --card-bg: #FFFFFF;
            --border: #EFF2F7;
            --shadow-sm: 0 4px 12px rgba(25, 168, 97, 0.08);
            --shadow-md: 0 8px 30px rgba(25, 168, 97, 0.12);
            --shadow-lg: 0 20px 60px rgba(25, 168, 97, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
        }

.dark-theme {
            --text: #FFFFFF;
            --text-secondary: #B4B9D1;
            --text-muted: #8A91B4;
            --bg: #0F1426;
            --bg-secondary: #1A2036;
            --card-bg: #151B30;
            --border: #2A3048;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.3);
        }
/* ============================================== */
/* Base & Reset */
/* ============================================== */

* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Montserrat', sans-serif;
        }

body {
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
            font-weight: 400;
            min-height: 100vh;
            transition: all 0.4s ease;
        }
/* ============================================== */
/* Background Elements */
/* ============================================== */

.background-elements {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }

.gradient-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.1;
            animation: float 20s infinite ease-in-out;
        }

.orb-1 {
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, var(--primary-light), transparent 70%);
            top: -300px;
            left: -200px;
            animation-delay: 0s;
        }

.orb-2 {
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, var(--primary), transparent 70%);
            bottom: -250px;
            right: -150px;
            animation-delay: 7s;
        }

.grid-pattern {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                linear-gradient(rgba(25, 168, 97, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(25, 168, 97, 0.03) 1px, transparent 1px);
            background-size: 60px 60px;
            z-index: -1;
        }
/* ============================================== */
/* Header */
/* ============================================== */

.site-header {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            width: 92%;
            max-width: 1400px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 16px 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 1000;
            box-shadow: var(--shadow-md);
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

.dark-theme .site-header {
            background: rgba(21, 27, 48, 0.92);
            border: 1px solid var(--border);
        }

.site-header.scrolled {
            top: 16px;
            padding: 12px 28px;
            width: 94%;
            box-shadow: var(--shadow-lg);
        }

.logo {
            display: flex;
            align-items: center;
            gap: 14px;
            text-decoration: none;
            color: var(--text);
            font-weight: 800;
            font-size: 1.8rem;
        }

.logo-img {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            background: white;
            overflow: hidden;
        }

.logo-img img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

.logo:hover .logo-img {
            transform: rotate(8deg) scale(1.08);
            box-shadow: 0 0 35px rgba(25, 168, 97, 0.5);
        }

.logo b {
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
/* Navigation */
        .nav {
            display: flex;
            gap: 4px;
            position: relative;
            z-index: 1100;
        }

.nav a {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 12px 20px;
            border-radius: var(--radius-lg);
            transition: all 0.3s ease;
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            gap: 6px;
        }

.nav a::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(25, 168, 97, 0.08), transparent);
            transition: left 0.7s ease;
        }

.nav a:hover::before {
            left: 100%;
        }

.nav a:hover, .nav a.active {
            color: var(--text);
            background: rgba(25, 168, 97, 0.05);
        }
/* Dropdown Menu */
        .dropdown {
            position: relative;
        }

.dropdown-toggle {
            cursor: pointer;
            user-select: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }

.dropdown-content {
            position: absolute;
            top: 100%;
            left: 0;
            width: 750px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 32px;
            z-index: 1001;
            box-shadow: var(--shadow-lg);
            display: none; /* Hidden by default */
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 16px;
            max-height: 75vh;
            overflow-y: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--primary) transparent;
            border: 1px solid rgba(25, 168, 97, 0.1);
            background: var(--card-bg);
        }
/* Show content when dropdown is active */
        .dropdown.active .dropdown-content {
            display: grid;
        }

.dropdown-column h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            padding-bottom: 12px;
            border-bottom: 2px solid rgba(25, 168, 97, 0.1);
            position: relative;
        }

.dropdown-column h4::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--gradient);
            border-radius: 2px;
        }

.dropdown-column a {
            display: flex;
            align-items: center;
            padding: 14px 18px;
            color: var(--text);
            text-decoration: none;
            border-radius: var(--radius-lg);
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            font-size: 0.95rem;
            margin-bottom: 6px;
            gap: 12px;
            border: 1px solid transparent;
            background: rgba(25, 168, 97, 0.02);
            position: relative;
            overflow: hidden;
        }

.dropdown-column a::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(25, 168, 97, 0.05), transparent);
            transition: left 0.6s ease;
        }

.dropdown-column a i {
            width: 22px;
            color: var(--primary);
            font-size: 1rem;
            transition: all 0.3s ease;
        }

.dropdown-column a:hover {
            background: rgba(25, 168, 97, 0.05);
            transform: translateX(8px);
            color: var(--primary);
            border-color: rgba(25, 168, 97, 0.1);
            box-shadow: 0 4px 15px rgba(25, 168, 97, 0.1);
        }

.dropdown-column a:hover::before {
            left: 100%;
        }

.dropdown-column a:hover i {
            transform: scale(1.2);
            color: var(--primary-light);
        }
/* Header Actions */
        .header-actions {
            display: flex;
            gap: 12px;
            align-items: center;
        }

.action-btn {
            background: none;
            border: none;
            color: var(--text);
            cursor: pointer;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            font-size: 1.1rem;
            position: relative;
        }

.action-btn:hover {
            background: rgba(25, 168, 97, 0.05);
            transform: translateY(-1px);
        }

.lang-switch {
            position: relative;
        }

.lang-dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 10px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            z-index: 1001;
            min-width: 160px;
            padding: 8px;
            display: none;
            animation: fadeInUp 0.3s ease;
        }

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

.lang-option {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all 0.2s ease;
            color: var(--text);
            text-decoration: none;
            font-size: 0.9rem;
        }

.lang-option:hover {
            background: rgba(25, 168, 97, 0.05);
        }

.lang-option.active {
            background: rgba(25, 168, 97, 0.12);
            color: var(--primary);
            font-weight: 600;
        }
/* Mobile Header Actions */
        .mobile-header-actions {
            display: none;
            gap: 8px;
            align-items: center;
        }

.menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.4rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-lg);
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            margin-left: auto;
            border: 1px solid var(--border);
        }

.menu-toggle:hover {
            background: rgba(25, 168, 97, 0.05);
            transform: rotate(90deg);
        }
/* Premium Mobile Menu Overlay */
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(15px);
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

.mobile-menu-overlay.active {
            opacity: 1;
            visibility: visible;
        }
/* Premium Mobile Menu Container */
        .mobile-menu-container {
            position: fixed;
            top: 0;
            right: -100%;
            width: 90%;
            max-width: 450px;
            height: 100%;
            background: var(--card-bg);
            box-shadow: -15px 0 60px rgba(0, 0, 0, 0.3);
            z-index: 2001;
            transition: right 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            display: flex;
            flex-direction: column;
            overflow: hidden;
            transform: translateZ(0);
            border-left: 1px solid var(--border);
        }

.mobile-menu-container.active {
            right: 0;
            animation: premiumMenuSlideIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

@keyframes premiumMenuSlideIn {
            0% {
                right: -100%;
                opacity: 0.7;
                transform: translateX(30px);
            }
            100% {
                right: 0;
                opacity: 1;
                transform: translateX(0);
            }
        }
/* Mobile Menu Header */
        .mobile-menu-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 30px 25px;
            border-bottom: 1px solid var(--border);
            background: var(--card-bg);
            position: relative;
        }

.mobile-menu-header::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100%;
            height: 1px;
            background: var(--gradient);
        }

.mobile-menu-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text);
            font-weight: 800;
            font-size: 1.4rem;
        }

.mobile-menu-logo-img {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: white;
            box-shadow: 0 4px 15px rgba(25, 168, 97, 0.2);
        }

.mobile-menu-logo-img img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

.mobile-menu-logo b {
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

.mobile-menu-close {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(25, 168, 97, 0.05);
            color: var(--text);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all 0.4s ease;
        }

.mobile-menu-close:hover {
            background: var(--primary);
            color: white;
            transform: rotate(90deg);
            border-color: var(--primary);
        }
/* Mobile Menu Content */
        .mobile-menu-content {
            flex: 1;
            overflow-y: auto;
            padding: 25px;
            scrollbar-width: thin;
            scrollbar-color: var(--primary) transparent;
        }

.mobile-menu-content::-webkit-scrollbar {
            width: 4px;
        }

.mobile-menu-content::-webkit-scrollbar-track {
            background: transparent;
            border-radius: 10px;
        }

.mobile-menu-content::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 10px;
        }
/* Premium Mobile Menu Navigation */
        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 30px;
        }

.mobile-nav-item {
            display: flex;
            align-items: center;
            padding: 18px 22px;
            border-radius: var(--radius-lg);
            color: var(--text);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            border: 1px solid transparent;
        }

.mobile-nav-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(25, 168, 97, 0.08), transparent);
            transition: left 0.7s ease;
        }

.mobile-nav-item:hover::before {
            left: 100%;
        }

.mobile-nav-item:hover, .mobile-nav-item.active {
            background: rgba(25, 168, 97, 0.05);
            color: var(--primary);
            border-color: rgba(25, 168, 97, 0.1);
            transform: translateX(5px);
        }

.mobile-nav-item i {
            width: 24px;
            margin-right: 12px;
            font-size: 1.1rem;
        }
/* Premium Mobile Dropdown */
        .mobile-dropdown {
            margin-bottom: 20px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            background: rgba(25, 168, 97, 0.02);
        }

.mobile-dropdown-toggle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            border-radius: var(--radius-lg);
            color: var(--text);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            background: rgba(25, 168, 97, 0.03);
        }

.mobile-dropdown-toggle:hover {
            background: rgba(25, 168, 97, 0.05);
            color: var(--primary);
        }

.mobile-dropdown-toggle i:first-child {
            margin-right: 12px;
            width: 24px;
            font-size: 1.1rem;
        }

.mobile-dropdown-toggle .dropdown-arrow {
            transition: transform 0.4s ease;
        }

.mobile-dropdown.active .mobile-dropdown-toggle .dropdown-arrow {
            transform: rotate(180deg);
        }

.mobile-dropdown-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
            background: rgba(25, 168, 97, 0.01);
        }

.mobile-dropdown.active .mobile-dropdown-content {
            max-height: 1000px;
        }

.mobile-dropdown-item {
            display: flex;
            align-items: center;
            padding: 16px 22px;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            border-top: 1px solid rgba(25, 168, 97, 0.05);
            position: relative;
        }

.mobile-dropdown-item:last-child {
            border-bottom: none;
        }

.mobile-dropdown-item i {
            width: 20px;
            margin-right: 12px;
            font-size: 0.9rem;
            color: var(--primary);
        }

.mobile-dropdown-item:hover {
            color: var(--primary);
            padding-left: 28px;
            background: rgba(25, 168, 97, 0.03);
        }
/* Mobile Menu Actions */
        .mobile-menu-actions {
            display: flex;
            justify-content: space-between;
            margin-bottom: 20px;
            padding: 0 20px;
        }

.mobile-action-btn {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 15px;
            border-radius: var(--radius-lg);
            background: rgba(25, 168, 97, 0.05);
            color: var(--text);
            text-decoration: none;
            transition: all 0.3s ease;
            margin: 0 5px;
            border: none;
            cursor: pointer;
            border: 1px solid transparent;
        }

.mobile-action-btn i {
            font-size: 1.3rem;
            margin-bottom: 8px;
            color: var(--primary);
        }

.mobile-action-btn span {
            font-size: 0.8rem;
            font-weight: 500;
        }

.mobile-action-btn:hover {
            background: rgba(25, 168, 97, 0.1);
            transform: translateY(-2px);
            border-color: rgba(25, 168, 97, 0.2);
        }
/* ============================================== */
/* Hero Section */
/* ============================================== */

.hero {
            position: relative;
            width: 100%;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 140px 0 100px;
        }

.hero-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
            text-align: center;
            position: relative;
            z-index: 2;
        }

.hero-title {
            font-size: 4.2rem;
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 28px;
            color: var(--text);
            animation: fadeInUp 0.8s ease 0.1s both;
            word-break: break-word;
            hyphens: auto;
        }

.g {
            color: var(--primary);
        }

.hero-subtitle {
            font-size: 1.3rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 48px;
            line-height: 1.6;
            font-weight: 400;
        }

.hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin: 56px 0;
            animation: fadeInUp 0.8s ease 0.4s both;
        }

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

.stat-value {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 8px;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

.hero-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            animation: fadeInUp 0.8s ease 0.6s both;
        }

.hero-video {
            width: 100%;
            max-width: 1080px;
            margin: 22px auto 10px;
            animation: fadeInUp 0.8s ease 0.5s both;
            padding: 0 12px;
        }

.video-wrapper--hero {
            box-shadow: var(--shadow-md);
            border-radius: var(--radius-xl);
            max-width: 100%;
        }

.hero-buttons--spaced {
            margin-top: 60px;
        }

.hero-subtitle--centered {
            text-align: center;
            font-size: 1.3rem;
            margin-bottom: 20px;
        }
/* Buttons */
        .btn {
            padding: 16px 32px;
            border-radius: var(--radius-lg);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.4s ease;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1rem;
            position: relative;
            overflow: hidden;
            border: none;
            cursor: pointer;
        }

.btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.7s ease;
        }

.btn:hover::before {
            left: 100%;
        }

.btn-primary {
            background: var(--gradient);
            color: white;
            box-shadow: 0 8px 25px rgba(25, 168, 97, 0.3);
        }

.btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(25, 168, 97, 0.4);
        }

.btn-secondary {
            background: var(--card-bg);
            color: var(--text);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

.btn-secondary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
/* Hero TOC */
        .hero-toc {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-top: 40px;
            flex-wrap: wrap;
            animation: fadeInUp 0.8s ease 0.8s both;
        }

.toc-chip {
            padding: 12px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 100px;
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }

.toc-chip:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
/* ============================================== */
/* Main Content Section */
/* ============================================== */

.content-section {
            padding: 120px 0;
            background: var(--bg);
        }

.content-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

.content-section h2 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 40px;
            color: var(--text);
            text-align: center;
        }

.content-section h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 30px 0 15px;
            color: var(--primary);
        }

.content-section h4 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 25px 0 10px;
            color: var(--text);
        }

.content-section p {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

.content-section ul, .content-section ol {
            margin: 16px 0 24px 24px;
            padding-left: 20px;
        }

.content-section li {
            margin-bottom: 10px;
            line-height: 1.7;
        }

.content-section strong {
            color: var(--text);
            font-weight: 600;
        }

.content-section .highlight {
            background: rgba(25, 168, 97, 0.1);
            border-left: 4px solid var(--primary);
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
/* ============================================== */
/* Video Section */
/* ============================================== */

.video-section {
            padding: 120px 0;
            background: var(--bg-secondary);
        }

.section-head {
            text-align: center;
            margin-bottom: 80px;
            position: relative;
        }

.section-head h2 {
            font-size: 3.2rem;
            margin-bottom: 24px;
            font-weight: 800;
            color: var(--text);
        }

.section-head p {
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.2rem;
            line-height: 1.6;
            font-weight: 400;
        }

.video-container {
            max-width: 1200px;
            margin: 0 auto;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            background: var(--card-bg);
            padding: 30px;
        }

.video-wrapper {
            position: relative;
            width: 100%;
            height: 0;
            padding-bottom: 56.25%;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }

.video-player {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }
/* ============================================== */
/* Features */
/* ============================================== */

.features {
            padding: 120px 0;
            background: var(--bg-secondary);
        }

.features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }

.feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 30px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

.feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

.feature-card:hover::before {
            opacity: 0.02;
        }

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

.feature-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: white;
            font-size: 1.5rem;
            box-shadow: 0 8px 20px rgba(25, 168, 97, 0.2);
            transition: all 0.4s ease;
            position: relative;
            z-index: 1;
        }

.feature-card:hover .feature-icon {
            transform: rotate(10deg) scale(1.1);
            box-shadow: 0 12px 30px rgba(25, 168, 97, 0.3);
        }

.feature-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--text);
            font-weight: 700;
            position: relative;
            z-index: 1;
        }

.feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            position: relative;
            z-index: 1;
        }
/* ============================================== */
/* Calculator Section */
/* ============================================== */

.cost-calculator {
            padding: 80px 0;
            background: var(--bg);
        }

.calculator-container {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            height: 700px;
            position: relative;
        }

.bitrix-form {
            width: 100%;
            height: 100%;
            border: none;
            border-radius: var(--radius-xl);
        }
/* ============================================== */
/* Final CTA */
/* ============================================== */

.final-cta {
            padding: 120px 0;
            background: var(--gradient);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

.cta-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

.cta-title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 24px;
            color: white;
        }

.cta-text {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 40px;
            line-height: 1.6;
        }

.cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
        }

.btn-light {
            background: rgba(255, 255, 255, 0.15);
            color: white;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

.btn-light:hover {
            background: rgba(255, 255, 255, 0.25);
            transform: translateY(-3px);
        }
/* ============================================== */
/* Footer */
/* ============================================== */

footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
        }

.footer-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
        }

.footer-brand {
            display: flex;
            flex-direction: column;
        }

.footer-logo {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
            text-decoration: none;
            color: var(--text);
            font-weight: 800;
            font-size: 1.6rem;
        }

.footer-logo-img {
            width: 44px;
            height: 44px;
            background: white;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

.footer-logo-img img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

.footer-logo b {
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

.social-links {
            display: flex;
            gap: 12px;
        }

.social-link {
            width: 44px;
            height: 44px;
            background: rgba(25, 168, 97, 0.05);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text);
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

.copyright {
            text-align: center;
            color: var(--text-secondary);
            padding-top: 30px;
            border-top: 1px solid var(--border);
            font-size: 0.9rem;
        }
/* ============================================== */
/* Animations */
/* ============================================== */

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

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

@keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
/* ============================================== */
/* Mobile Responsive */
/* ============================================== */

@media (max-width: 1200px) {
            .hero-title {
                font-size: 3.5rem;
            }

.content-section h2 {
                font-size: 2.5rem;
            }

.features-grid {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            }

.section-head h2 {
                font-size: 2.5rem;
            }
        }

@media (max-width: 992px) {
            .dropdown-content {
                width: 600px;
                left: -50px;
            }

.hero-title {
                font-size: 3rem;
            }

.content-container {
                padding: 0 20px;
            }

.content-section h2 {
                font-size: 2.2rem;
            }

.content-section h3 {
                font-size: 1.6rem;
            }

.content-section h4 {
                font-size: 1.3rem;
            }

.content-section p {
                font-size: 1rem;
            }

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

.section-head h2 {
                font-size: 2.2rem;
            }
        }

@media (max-width: 768px) {
            .site-header {
                padding: 16px 20px;
                flex-wrap: wrap;
            }

.logo span {
                display: none;
            }

.mobile-header-actions {
                display: flex;
                order: 2;
                margin-left: auto;
            }

.menu-toggle {
                display: flex;
                order: 3;
                margin-left: 10px;
            }

.nav {
                display: none;
            }

.header-actions {
                display: none;
            }

.hero-title {
                font-size: 2.8rem;
            }

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

.hero-stats {
                flex-direction: column;
                gap: 30px;
            }

.content-section h2 {
                font-size: 2rem;
            }

.features-grid {
                grid-template-columns: 1fr;
            }

.footer-content {
                flex-direction: column;
                gap: 30px;
                text-align: center;
            }

.cta-title {
                font-size: 2.2rem;
            }

.content-container {
                padding: 0 15px;
            }

.section-head h2 {
                font-size: 2rem;
            }

.video-container {
                padding: 20px;
                margin: 0 20px;
            }
}

@media (max-width: 600px) {
    .hero {
        padding: 120px 0 80px;
    }

    .hero-title {
        font-size: clamp(2.2rem, 7vw, 2.8rem);
    }

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

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

    .hero-toc {
        justify-content: flex-start;
        gap: 12px;
        padding-bottom: 6px;
    }

    .toc-chip {
        padding: 10px 16px;
        font-size: 0.95rem;
    }

    .cert-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 18px;
    }

    .service-category .cert-grid {
        grid-template-columns: 1fr;
    }

    .features-grid,
    .industries-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .cert-content {
        padding: 20px;
    }
}

@media (max-width: 480px) {
            .hero-title {
                font-size: 2.2rem;
            }

.content-section h2 {
                font-size: 1.8rem;
            }

.content-section h3 {
                font-size: 1.4rem;
            }

.content-section h4 {
                font-size: 1.2rem;
            }

.feature-card, .testimonial-card {
                padding: 20px;
            }

.section-head h2 {
                font-size: 1.8rem;
            }

.video-container {
                padding: 15px;
                margin: 0 15px;
            }
        }
/* ============================================== */
/* CSS Variables & Theme */
/* ============================================== */

:root {
/* Colors */
            --primary: #19A861;
            --primary-light: #0FB57A;
            --primary-dark: #0A7C5E;
            --gradient: linear-gradient(135deg, var(--primary), var(--primary-light), var(--primary-dark));
            --text: #1A1D29;
            --text-secondary: #5A6175;
            --text-muted: #8F95B2;
            --bg: #FFFFFF;
            --bg-secondary: #F8FAFC;
            --card-bg: #FFFFFF;
            --border: #EFF2F7;
            --shadow-sm: 0 4px 12px rgba(25, 168, 97, 0.08);
            --shadow-md: 0 8px 30px rgba(25, 168, 97, 0.12);
            --shadow-lg: 0 20px 60px rgba(25, 168, 97, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
        }
/* ============================================== */
/* Partners Section */
/* ============================================== */

.partners-section {
            padding: 120px 0;
            background: var(--bg-secondary);
        }

.partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }

.partner-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 30px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            text-align: center;
        }

.partner-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

.partner-card:hover::before {
            opacity: 0.02;
        }

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

.partner-icon {
            width: 80px;
            height: 80px;
            background: var(--gradient);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 2rem;
            box-shadow: 0 8px 20px rgba(25, 168, 97, 0.2);
            transition: all 0.4s ease;
            position: relative;
            z-index: 1;
        }

.partner-card:hover .partner-icon {
            transform: rotate(10deg) scale(1.1);
            box-shadow: 0 12px 30px rgba(25, 168, 97, 0.3);
        }

.partner-card h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: var(--text);
            font-weight: 700;
            position: relative;
            z-index: 1;
        }

.partner-card p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.6;
            position: relative;
            z-index: 1;
            margin-bottom: 20px;
        }

.partner-website {
            display: inline-block;
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
        }

.partner-website:hover {
            color: var(--primary-dark);
            transform: translateX(5px);
        }

.partner-website::after {
            content: '↗';
            margin-left: 5px;
            font-size: 0.9rem;
        }

.video-wrapper {
            position: relative;
            width: 100%;
            height: 0;
            padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }

.features .section-head {
            text-align: center;
            margin-bottom: 80px;
            position: relative;
        }

.features .section-head .section-title {
            font-size: 3.2rem;
            margin-bottom: 24px;
            font-weight: 800;
            color: var(--text);
            text-align: center;
        }

.features .section-head .section-description {
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.2rem;
            line-height: 1.6;
            font-weight: 400;
            text-align: center;
        }
/* ============================================== */
/* Feedback Form Section */
/* ============================================== */

.feedback-section {
            padding: 120px 0;
            background: var(--bg);
        }

.feedback-container {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            height: 700px;
            position: relative;
        }
/* ============================================== */
/* Mobile Responsive */
/* ============================================== */

@media (max-width: 1200px) {
            .hero-title {
                font-size: 3.5rem;
            }

.content-section h2 {
                font-size: 2.5rem;
            }

.features-grid {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            }
        }

@media (max-width: 992px) {
            .dropdown-content {
                width: 600px;
                left: -50px;
            }

.hero-title {
                font-size: 3rem;
            }

.content-container {
                padding: 0 20px;
            }

.content-section h2 {
                font-size: 2.2rem;
            }

.content-section h3 {
                font-size: 1.6rem;
            }

.content-section h4 {
                font-size: 1.3rem;
            }

.content-section p {
                font-size: 1rem;
            }

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

@media (max-width: 768px) {
            .site-header {
                padding: 16px 20px;
                flex-wrap: wrap;
            }

.logo span {
                display: none;
            }

.mobile-header-actions {
                display: flex;
                order: 2;
                margin-left: auto;
            }

.menu-toggle {
                display: flex;
                order: 3;
                margin-left: 10px;
            }

.nav {
                display: none;
            }

.header-actions {
                display: none;
            }

.hero-title {
                font-size: 2.8rem;
            }

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

.hero-stats {
                flex-direction: column;
                gap: 30px;
            }

.content-section h2 {
                font-size: 2rem;
            }

.features-grid {
                grid-template-columns: 1fr;
            }

.footer-content {
                flex-direction: column;
                gap: 30px;
                text-align: center;
            }

.cta-title {
                font-size: 2.2rem;
            }

.content-container {
                padding: 0 15px;
            }

            .video-container {
                padding: 20px;
                margin: 0 20px;
            }

            .feedback-container {
                padding: 0;
                margin: 0 20px;
                height: 800px;
            }
        }

@media (max-width: 480px) {
            .hero-title {
                font-size: 2.2rem;
            }

.content-section h2 {
                font-size: 1.8rem;
            }

.content-section h3 {
                font-size: 1.4rem;
            }

.content-section h4 {
                font-size: 1.2rem;
            }

.feature-card, .testimonial-card {
                padding: 20px;
            }

.dropdown-content {
                padding: 16px;
            }

.hero-toc {
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 10px;
            }

.toc-chip {
                white-space: nowrap;
            }

.video-container {
                padding: 15px;
                margin: 0 15px;
            }

            .feedback-container {
                height: 850px;
                margin: 0 15px;
            }
        }
/* ============================================== */
/* Cost Calculator */
/* ============================================== */

.cost-calculator {
            padding: 120px 0;
            background: var(--bg);
        }

.features .section-head .section-title {
            font-size: 3.2rem;
            margin-bottom: 24px;
            font-weight: 800;
/* Центрируем заголовок */
            text-align: center;
/* Градиентный текст, как в hero-title */
            color: var(--text);
        }

.features .section-head .section-description {
            color: var(--text-secondary);
            max-width: 700px;
/* Центрируем описание относительно родителя (.section-head) */
            margin: 0 auto;
            font-size: 1.2rem;
            line-height: 1.6;
            font-weight: 400;
            text-align: center;
        }
/* ============================================== */
/* Mobile Responsive */
/* ============================================== */

@media (max-width: 1200px) {
            .hero-title {
                font-size: 3.5rem;
            }

.content-section h2 {
                font-size: 2.5rem;
            }

.features-grid {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            }

.features .section-head .section-title {
                font-size: 2.8rem;
            }
        }

@media (max-width: 992px) {
            .dropdown-content {
                width: 600px;
                left: -50px;
            }

.hero-title {
                font-size: 3rem;
            }

.content-container {
                padding: 0 20px;
            }

.content-section h2 {
                font-size: 2.2rem;
            }

.content-section h3 {
                font-size: 1.6rem;
            }

.content-section h4 {
                font-size: 1.3rem;
            }

.content-section p {
                font-size: 1rem;
            }

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

.features .section-head .section-title {
                font-size: 2.5rem;
            }

.features .section-head .section-description {
                font-size: 1.1rem;
            }
        }

@media (max-width: 768px) {
            .site-header {
                padding: 16px 20px;
                flex-wrap: wrap;
            }

.logo span {
                display: none;
            }

.mobile-header-actions {
                display: flex;
                order: 2;
                margin-left: auto;
            }

.menu-toggle {
                display: flex;
                order: 3;
                margin-left: 10px;
            }

.nav {
                display: none;
            }

.header-actions {
                display: none;
            }

.hero-title {
                font-size: 2.8rem;
            }

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

.hero-stats {
                flex-direction: column;
                gap: 30px;
            }

.content-section h2 {
                font-size: 2rem;
            }

.features-grid {
                grid-template-columns: 1fr;
                padding: 0 20px;
            }

.footer-content {
                flex-direction: column;
                gap: 30px;
                text-align: center;
            }

.cta-title {
                font-size: 2.2rem;
            }

.content-container {
                padding: 0 15px;
            }

.features .section-head .section-title {
                font-size: 2.2rem;
            }

.features .section-head .section-description {
                font-size: 1rem;
            }

            .calculator-container {
                padding: 0;
                margin: 0 20px;
                height: 800px;
            }

.video-container {
                padding: 20px;
                margin: 0 20px;
            }
        }

@media (max-width: 480px) {
            .hero-title {
                font-size: 2.2rem;
            }

.content-section h2 {
                font-size: 1.8rem;
            }

.content-section h3 {
                font-size: 1.4rem;
            }

.content-section h4 {
                font-size: 1.2rem;
            }

.feature-card, .testimonial-card {
                padding: 20px;
            }

.dropdown-content {
                padding: 16px;
            }

.hero-toc {
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 10px;
            }

.toc-chip {
                white-space: nowrap;
            }

.video-container {
                padding: 15px;
                margin: 0 15px;
            }

.calculator-container {
                padding: 0;
                margin: 0 15px;
                height: 850px;
            }

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

:root {
            --primary: #19A861;
            --primary-light: #0FB57A;
            --primary-dark: #0A7C5E;
            --gradient: linear-gradient(135deg, #19A861, #0FB57A, #0A7C5E);
            --text: #1A1D29;
            --text-secondary: #5A6175;
            --text-muted: #8F95B2;
            --bg: #FFFFFF;
            --bg-secondary: #F8FAFC;
            --card-bg: #FFFFFF;
            --border: #EFF2F7;
            --shadow-sm: 0 4px 12px rgba(25, 168, 97, 0.08);
            --shadow-md: 0 8px 30px rgba(25, 168, 97, 0.12);
            --shadow-lg: 0 20px 60px rgba(25, 168, 97, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
        }

* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Montserrat', sans-serif;
        }
/* Background Elements */
        .background-elements {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }
/* Header */
        .site-header {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            width: 92%;
            max-width: 1400px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 16px 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 1000;
            box-shadow: var(--shadow-md);
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }
/* Hero Section */
        .hero {
            position: relative;
            width: 100%;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 140px 0 100px;
        }
/* Video Section */
        .video-section {
            padding: 120px 0;
            background: var(--bg-secondary);
        }
/* Certificate Selector */
        .cert-selector {
            padding: 120px 0;
            background: var(--bg);
        }

.selector-steps {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin: 60px 0;
        }

.step {
            flex: 1;
            max-width: 300px;
            text-align: center;
            position: relative;
        }

.step-number {
            width: 60px;
            height: 60px;
            background: var(--gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 1.5rem;
            margin: 0 auto 20px;
            box-shadow: 0 8px 20px rgba(25, 168, 97, 0.3);
        }

.step h3 {
            font-size: 1.3rem;
            margin-bottom: 16px;
            font-weight: 700;
        }

.step p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.6;
        }

.step-connector {
            position: absolute;
            top: 30px;
            right: -45px;
            width: 90px;
            height: 2px;
            background: var(--border);
        }

.step:last-child .step-connector {
            display: none;
        }

.selector-result {
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            padding: 40px;
            text-align: center;
            box-shadow: var(--shadow-md);
            max-width: 600px;
            margin: 0 auto;
            display: none;
        }

.result-visible {
            display: block;
            animation: fadeInUp 0.5s ease;
        }
/* Certificate Types */
        .cert-types {
            padding: 120px 0;
            background: var(--bg-secondary);
        }

.cert-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }

.cert-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 0;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

.cert-card.is-collapsed {
            display: none;
        }

.is-hidden {
            display: none !important;
        }

.cert-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

.cert-card:hover::before {
            opacity: 0.02;
        }

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

.cert-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

.cert-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

.cert-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: white;
            font-size: 1.5rem;
            box-shadow: 0 8px 20px rgba(25, 168, 97, 0.2);
            transition: all 0.4s ease;
            position: relative;
            z-index: 1;
        }

.cert-card:hover .cert-icon {
            transform: rotate(10deg) scale(1.1);
            box-shadow: 0 12px 30px rgba(25, 168, 97, 0.3);
        }

.cert-card h3 {
            font-size: 1.3rem;
            margin-bottom: 16px;
            color: var(--text);
            font-weight: 700;
            position: relative;
            z-index: 1;
        }

.cert-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            flex-grow: 1;
        }

.cert-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
            margin-top: auto;
        }

.cert-link:hover {
            gap: 12px;
        }
/* Industries */
        .industries {
            padding: 120px 0;
            background: var(--bg);
        }

.industries-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }

.industry-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 30px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            text-align: center;
            aspect-ratio: 1/1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

.industry-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

.industry-card:hover::before {
            opacity: 0.05;
        }

.industry-card:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

.industry-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 1.5rem;
            box-shadow: 0 8px 20px rgba(25, 168, 97, 0.2);
            transition: all 0.4s ease;
            position: relative;
            z-index: 1;
        }

.industry-card:hover .industry-icon {
            transform: rotate(10deg) scale(1.1);
            box-shadow: 0 12px 30px rgba(25, 168, 97, 0.3);
        }

.industry-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--text);
            font-weight: 700;
            position: relative;
            z-index: 1;
        }
/* Process */
        .process {
            padding: 120px 0;
            background: var(--bg-secondary);
        }

.process-steps {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-top: 60px;
            position: relative;
        }

.process-step {
            flex: 1;
            max-width: 200px;
            text-align: center;
            position: relative;
        }

.process-number {
            width: 50px;
            height: 50px;
            background: var(--gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 20px;
            box-shadow: 0 8px 20px rgba(25, 168, 97, 0.3);
        }

.process-step h3 {
            font-size: 1.1rem;
            margin-bottom: 12px;
            font-weight: 700;
        }

.process-step p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.5;
        }

.process-connector {
            position: absolute;
            top: 25px;
            right: -45px;
            width: 90px;
            height: 2px;
            background: var(--border);
        }

.process-step:last-child .process-connector {
            display: none;
        }
/* Cost Calculator */
        .cost-calculator {
            padding: 120px 0;
            background: var(--bg);
        }
/* Features */
        .features {
            padding: 120px 0;
            background: var(--bg-secondary);
        }
/* Testimonials */
        .testimonials {
            padding: 120px 0;
            background: var(--bg);
        }

.testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }

.testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 30px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

.testimonial-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

.testimonial-card:hover::before {
            opacity: 0.02;
        }

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

.testimonial-text {
            font-size: 1rem;
            line-height: 1.6;
            color: var(--text);
            margin-bottom: 24px;
            font-style: italic;
            flex-grow: 1;
            position: relative;
            z-index: 1;
        }

.testimonial-author {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: auto;
            position: relative;
            z-index: 1;
        }

.author-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

.author-info {
            flex-grow: 1;
        }

.author-info h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text);
        }

.author-info p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 8px;
        }

.testimonial-rating {
            color: #FFC107;
            font-size: 0.9rem;
        }
/* FAQ */
        .faq {
            padding: 120px 0;
            background: var(--bg-secondary);
        }

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

.faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

.faq-question {
            padding: 24px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }

.faq-question:hover {
            background: rgba(25, 168, 97, 0.02);
        }

.faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            color: var(--text-secondary);
            line-height: 1.6;
        }

.faq-item.active .faq-answer {
            padding: 0 24px 24px;
            max-height: 500px;
        }

.faq-item.active .faq-question {
            color: var(--primary);
        }

.faq-toggle {
            transition: transform 0.3s ease;
        }

.faq-item.active .faq-toggle {
            transform: rotate(180deg);
        }
/* Final CTA */
        .final-cta {
            padding: 120px 0;
            background: var(--gradient);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
/* Footer */
        footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
        }
/* Animations */
        @keyframes float {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-20px);
            }
        }
/* Mobile Responsive */
        @media (max-width: 1200px) {
            .hero-title {
                font-size: 3.5rem;
            }

.cert-grid, .industries-grid, .features-grid, .testimonials-grid {
                grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            }
        }

@media (max-width: 992px) {
            .dropdown-content {
                width: 600px;
                left: -50px;
            }

.selector-steps, .process-steps {
                flex-direction: column;
                align-items: center;
                gap: 40px;
            }

.step-connector, .process-connector {
                display: none;
            }

.step, .process-step {
                max-width: 100%;
            }

        }

@media (max-width: 768px) {
            .site-header {
                padding: 16px 20px;
                flex-wrap: wrap;
            }

.logo span {
                display: none;
            }

.mobile-header-actions {
                display: flex;
                order: 2;
                margin-left: auto;
            }

.menu-toggle {
                display: flex;
                order: 3;
                margin-left: 10px;
            }

.nav {
                display: none;
            }

.header-actions {
                display: none;
            }

.hero-title {
                font-size: 2.8rem;
            }

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

.hero-stats {
                flex-direction: column;
                gap: 30px;
            }

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

.cert-grid, .industries-grid, .features-grid, .testimonials-grid {
                grid-template-columns: 1fr;
                padding: 0 20px;
            }

.footer-content {
                flex-direction: column;
                gap: 30px;
                text-align: center;
            }

.section-head h2 {
                font-size: 2.5rem;
            }

.cta-title {
                font-size: 2.2rem;
            }

.calculator-container {
                padding: 0;
                margin: 0 20px;
                height: 800px;
            }

.video-container {
                padding: 20px;
                margin: 0 20px;
            }

            .mobile-lang-dropdown {
                position: absolute;
                top: 100%;
                right: 0;
                margin-top: 10px;
                background: var(--card-bg);
                border: 1px solid var(--border);
                border-radius: var(--radius-lg);
                box-shadow: var(--shadow-lg);
                z-index: 1001;
                min-width: 180px;
                padding: 8px;
                display: none;
                animation: fadeInUp 0.3s ease;
            }

.mobile-lang-dropdown.active {
                display: block;
            }
        }

@media (max-width: 480px) {
            .hero-title {
                font-size: 2.2rem;
            }

.section-head h2 {
                font-size: 2rem;
            }

.feature-card, .cert-card, .industry-card, .testimonial-card {
                padding: 20px;
            }

.dropdown-content {
                padding: 16px;
            }

.hero-toc {
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 10px;
            }

.toc-chip {
                white-space: nowrap;
            }

.video-container {
                padding: 15px;
                margin: 0 15px;
            }

.cert-grid, .testimonials-grid {
                padding: 0 15px;
            }

.calculator-container {
                height: 850px;
                margin: 0 15px;
            }

        }

@media (max-width: 480px) {
            .hero-title {
                font-size: 2.2rem;
            }

.content-section h2 {
                font-size: 1.8rem;
            }

.content-section h3 {
                font-size: 1.4rem;
            }

.content-section h4 {
                font-size: 1.2rem;
            }

.feature-card, .testimonial-card {
                padding: 20px;
            }

.dropdown-content {
                padding: 16px;
            }

.hero-toc {
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 10px;
            }

.toc-chip {
                white-space: nowrap;
            }

.video-container {
                padding: 15px;
                margin: 0 15px;
            }

.features-grid {
                padding: 0 15px;
            }

.calculator-container {
                height: 850px;
                margin: 0 15px;
            }

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


/* ============================================== */
/* Responsive Enhancements                       */
/* ============================================== */

@media (max-width: 1200px) {
    section,
    .features,
    .cost-calculator,
    .testimonials,
    .industries,
    .process {
        padding: 90px 0;
    }

    .hero-title {
        font-size: clamp(2.8rem, 5vw, 3.2rem);
    }

    .section-head h2 {
        font-size: 2.4rem;
    }
}

@media (max-width: 992px) {
    .site-header {
        width: 94%;
        padding: 14px 18px;
    }

    .nav {
        display: none;
    }

    .header-actions {
        display: none;
    }

    .mobile-header-actions,
    .menu-toggle {
        display: flex;
    }

    .hero-content {
        padding: 0 20px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }

    .features-grid,
    .cert-grid,
    .industries-grid,
    .testimonials-grid {
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    }
}

@media (max-width: 768px) {
    section,
    .features,
    .cost-calculator,
    .testimonials,
    .industries,
    .process {
        padding: 70px 0;
    }

    .logo span {
        display: none;
    }

    .hero-title {
        font-size: clamp(2.2rem, 7vw, 2.6rem);
        text-align: center;
    }

    .hero-subtitle {
        font-size: 1.05rem;
        text-align: center;
    }

    .hero-buttons,
    .cta-buttons {
        flex-direction: column;
        gap: 14px;
    }

    .hero-buttons .btn,
    .cta-buttons .btn {
        width: 100%;
        justify-content: center;
    }

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

    .section-head h2 {
        font-size: 2rem;
    }

    .section-head p {
        font-size: 1rem;
    }

    .calculator-container,
    .feedback-container {
        height: auto;
    }

    .bitrix-form {
        min-height: 540px;
    }
}

@media (max-width: 576px) {
    body {
        font-size: 0.95rem;
    }

    .site-header {
        width: 96%;
        padding: 12px 16px;
    }

    .hero-content {
        padding: 0 12px;
    }

    .hero-title {
        font-size: clamp(1.9rem, 8vw, 2.3rem);
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .stat-value {
        font-size: 2.2rem;
    }

    .stat-label {
        font-size: 0.85rem;
    }

    .toc-chip {
        font-size: 0.85rem;
        padding: 10px 16px;
    }

    .process-steps {
        flex-direction: column;
        align-items: stretch;
    }

    .process-connector {
        display: none;
    }

    footer .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

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

/* Enhanced Mobile Adjustments */
@media (max-width: 768px) {
    .site-header {
        width: calc(100% - 24px);
        left: 50%;
        transform: translateX(-50%);
        top: 12px;
        border-radius: var(--radius-lg);
        padding: 14px 18px;
        gap: 12px;
    }

    .site-header.scrolled {
        top: 8px;
        padding: 12px 16px;
        width: calc(100% - 20px);
    }

    .logo {
        font-size: 1.5rem;
        gap: 10px;
    }

    .logo-img {
        width: 42px;
        height: 42px;
    }

    .hero {
        min-height: auto;
        align-items: flex-start;
        padding: 120px 0 64px;
    }

    .hero-content {
        text-align: left;
        padding: 0 20px;
    }

    .hero-title {
        font-size: clamp(2.4rem, 7vw, 2.9rem);
    }

    .hero-subtitle {
        margin: 0 0 32px;
    }

    .hero-stats {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
        margin: 40px 0;
    }

    .stat-item {
        text-align: left;
        padding: 18px;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        background: var(--card-bg);
        box-shadow: var(--shadow-sm);
    }

    .hero-buttons {
        width: 100%;
        gap: 14px;
        align-items: stretch;
    }

    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-toc {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 8px;
        margin-top: 28px;
        gap: 12px;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }

    .hero-toc::-webkit-scrollbar {
        display: none;
    }

    .toc-chip {
        scroll-snap-align: start;
    }

    .content-section {
        padding: 80px 0;
    }

    .content-section h2 {
        text-align: left;
        font-size: clamp(2rem, 5.6vw, 2.3rem);
    }

    .content-container {
        padding: 0 20px;
    }

    .features-grid,
    .industries-grid,
    .testimonials-grid,
    .partners-grid,
    .cert-grid,
    .mobile-services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card,
    .testimonial-card,
    .partner-card {
        text-align: left;
        padding: 22px;
    }

    .video-container {
        margin: 0 16px;
        padding: 18px;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 14px;
        align-items: stretch;
    }

    .cta-buttons .btn {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .site-header {
        width: calc(100% - 16px);
        padding: 12px 14px;
        border-radius: var(--radius-md);
    }

    .logo {
        font-size: 1.35rem;
    }

    .logo-img {
        width: 36px;
        height: 36px;
    }

    .hero {
        padding: 110px 0 56px;
    }

    .hero-title {
        font-size: clamp(2.1rem, 8vw, 2.4rem);
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .stat-item {
        padding: 16px;
    }

    .hero-toc {
        margin-top: 24px;
    }

    .content-section {
        padding: 64px 0;
    }

    .section-head {
        margin-bottom: 48px;
    }

    .section-head h2 {
        font-size: clamp(1.8rem, 6.4vw, 2.1rem);
    }

    .video-container {
        margin: 0 12px;
        padding: 16px;
    }

    .partners-grid,
    .cert-grid {
        gap: 18px;
    }

    .footer-content {
        padding: 0 16px;
        text-align: center;
    }

    .footer-brand {
        align-items: center;
    }

    .hero-buttons,
    .cta-buttons {
        gap: 12px;
        align-items: stretch;
    }

    .hero-buttons .btn,
    .cta-buttons .btn {
        font-size: 1rem;
    }
}

/* ============================================== */
/* Mobile polish overrides */
/* ============================================== */

@media (max-width: 1024px) {
    .content-container,
    .hero-content,
    .video-container,
    .features-grid,
    .cert-grid,
    .testimonials-grid,
    .industries-grid {
        padding-left: clamp(16px, 4vw, 26px);
        padding-right: clamp(16px, 4vw, 26px);
    }

    .site-header {
        width: calc(100% - 24px);
        left: 12px;
        transform: none;
        border-radius: var(--radius-lg);
    }

    .site-header.scrolled {
        width: calc(100% - 24px);
        left: 12px;
    }
}

@media (max-width: 768px) {
    .site-header {
        top: 0;
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        padding: 14px clamp(16px, 4vw, 22px);
        box-shadow: var(--shadow-lg);
    }

    .hero {
        min-height: auto;
        padding: 120px 0 70px;
    }

    .hero-content {
        text-align: left;
    }

    .hero-title {
        font-size: clamp(1.9rem, 5.4vw, 2.3rem);
        line-height: 1.15;
    }

    .hero-subtitle {
        font-size: 0.98rem;
        margin-bottom: 28px;
    }

    .hero-video {
        margin: 18px auto 6px;
        max-width: 100%;
        padding: 0 10px;
    }

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

    .hero-buttons .btn {
        justify-content: center;
    }

    .hero-toc {
        justify-content: flex-start;
        gap: 10px;
        padding: 8px 0 10px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
    }

    .hero-toc::-webkit-scrollbar {
        height: 6px;
    }

    .hero-toc::-webkit-scrollbar-thumb {
        background: rgba(25, 168, 97, 0.4);
        border-radius: 999px;
    }

    .toc-chip {
        scroll-snap-align: start;
        font-size: 0.95rem;
    }

    .content-section {
        padding: 80px 0;
    }

    .content-section h2 {
        text-align: left;
        font-size: 2rem;
    }

    .content-section h3 {
        font-size: 1.5rem;
    }

    .content-section p {
        font-size: 1.05rem;
    }

    .features-grid,
    .cert-grid,
    .industries-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 0;
    }

    .feature-card,
    .cert-card,
    .testimonial-card {
        padding: 20px;
    }

    .highlight {
        padding: 14px;
    }

    .feedback-container,
    .calculator-container {
        height: auto;
        min-height: 520px;
    }
}

@media (max-width: 520px) {
    .hero {
        padding-top: 110px;
    }

    .hero-title {
        font-size: clamp(1.7rem, 5.6vw, 2rem);
    }

    .hero-video {
        margin: 14px auto 4px;
        padding: 0 8px;
    }

    .content-section h2 {
        font-size: 1.75rem;
    }

    .content-section h3 {
        font-size: 1.35rem;
    }

    .final-cta .btn,
    .cta-buttons .btn {
        width: 100%;
    }

    .video-container {
        margin: 0;
        padding: 16px;
        border-radius: var(--radius-lg);
    }

    .video-wrapper {
        border-radius: var(--radius-md);
    }
}

/* Ensure embedded forms stay fully visible (Bitrix iframe) */
.calculator-container,
.feedback-container {
    height: auto;
    min-height: 600px;
    overflow: visible;
    padding: 12px;
}

@media (max-width: 768px) {
    .calculator-container,
    .feedback-container {
        min-height: 680px;
        padding-bottom: 8px;
    }
}

@media (max-width: 520px) {
    .calculator-container,
    .feedback-container {
        min-height: 720px;
    }
}

.bitrix-form {
    min-height: 760px;
}

@media (max-width: 768px) {
    .bitrix-form {
        min-height: 820px;
    }
}

@media (max-width: 520px) {
    .bitrix-form {
        min-height: 860px;
    }
}