:root {
     --primary: #F36F21;
     --secondary: #2F80ED;
     --accent: #10B981;
     --dark-bg: #0f172a;
     --darker-bg: #020617;
     --card-bg: rgba(30, 41, 59, 0.7);
     --text-light: #f1f5f9;
     --text-gray: #e2e8f0;
     --gradient-main: linear-gradient(135deg, #2F80ED 0%, #a855f7 100%)
 }

 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
     font-family: 'Inter', sans-serif;
     scroll-behavior: smooth;
     -webkit-tap-highlight-color: transparent
 }

 body {
     background-color: var(--dark-bg);
     color: var(--text-light);
     overflow-x: hidden;
     line-height: 1.6;
     -webkit-font-smoothing: antialiased;
     -moz-osx-font-smoothing: grayscale
 }

 .mono-font {
     font-family: 'Fira Code', monospace
 }

 .highlight-text {
     background: var(--gradient-main);
     -webkit-background-clip: text;
     -webkit-text-fill-color: transparent
 }

 .section-padding {
     padding: 100px 0
 }

 .container {
     max-width: 1200px;
     margin: 0 auto;
     padding: 0 20px
 }

 .btn {
     display: inline-flex;
     align-items: center;
     gap: 10px;
     padding: 12px 30px;
     border-radius: 50px;
     text-decoration: none;
     font-weight: 600;
     transition: all 0.3s ease;
     border: none;
     cursor: pointer;
     touch-action: manipulation;
     user-select: none
 }

 .btn-primary {
     background: var(--gradient-main);
     color: white;
     box-shadow: 0 4px 15px rgba(47, 128, 237, 0.4)
 }

 .btn-primary:hover {
     transform: translateY(-2px);
     box-shadow: 0 8px 25px rgba(47, 128, 237, 0.6)
 }

 .btn-primary:active {
     transform: translateY(0)
 }

 .btn-outline {
     border: 2px solid var(--secondary);
     color: var(--secondary);
     background: transparent
 }

 .btn-outline:hover {
     background: var(--secondary);
     color: white
 }

 header {
     position: fixed;
     top: 0;
     width: 100%;
     padding: 20px 0;
     z-index: 1000;
     transition: 0.3s;
     backdrop-filter: blur(10px)
 }

 header.scrolled {
     background: rgba(2, 6, 23, 0.9);
     box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4)
 }

 .nav-flex {
     display: flex;
     justify-content: space-between;
     align-items: center
 }

 .logo {
     font-size: 1.4rem;
     font-weight: 700;
     display: flex;
     align-items: center;
     gap: 10px;
     z-index: 1001
 }

 .logo img {
     height: 60px;
     width: auto;
     max-width: 100%
 }

 .mobile-menu-toggle {
     display: none;
     flex-direction: column;
     gap: 5px;
     background: none;
     border: none;
     cursor: pointer;
     padding: 10px;
     z-index: 1001
 }

 .mobile-menu-toggle span {
     display: block;
     width: 25px;
     height: 3px;
     background: var(--text-light);
     border-radius: 3px;
     transition: all 0.3s ease
 }

 .mobile-menu-toggle.active span:nth-child(1) {
     transform: rotate(45deg) translate(8px, 8px)
 }

 .mobile-menu-toggle.active span:nth-child(2) {
     opacity: 0
 }

 .mobile-menu-toggle.active span:nth-child(3) {
     transform: rotate(-45deg) translate(7px, -7px)
 }

 .nav-links {
     display: flex;
     gap: 30px;
     align-items: center
 }

 .nav-links a {
     color: var(--text-light);
     text-decoration: none;
     font-size: 0.95rem;
     transition: color 0.3s
 }

 .nav-links a:hover {
     color: var(--secondary)
 }

 .lang-toggle {
     background: rgba(255, 255, 255, 0.05);
     border: 1px solid rgba(255, 255, 255, 0.1);
     border-radius: 25px;
     padding: 5px;
     display: flex;
     gap: 5px;
     cursor: pointer
 }

 .lang-option {
     padding: 6px 15px;
     border-radius: 20px;
     font-size: 0.85rem;
     transition: all 0.3s;
     color: var(--text-gray);
     user-select: none
 }

 .lang-option.active {
     background: var(--gradient-main);
     color: white
 }

 [data-i18n] {
     transition: opacity 0.25s ease-in-out
 }

 [data-i18n].lang-switching {
     opacity: 0
 }

 .hero h1,
 .hero p {
     min-height: fit-content
 }

 .hero h1 {
     display: block
 }

 .hero {
     padding: 180px 0 100px;
     min-height: 100vh;
     display: flex;
     align-items: center;
     background: radial-gradient(circle at 10% 20%, rgba(47, 128, 237, 0.1) 0%, transparent 50%)
 }

 .hero h1 {
     font-size: 3.5rem;
     line-height: 1.1;
     margin-bottom: 25px
 }

 .hero p {
     font-size: 1.2rem;
     color: var(--text-gray);
     margin-bottom: 40px;
     max-width: 600px
 }

 .stats-bar {
     background: var(--darker-bg);
     padding: 40px 0;
     border-top: 1px solid rgba(255, 255, 255, 0.05);
     border-bottom: 1px solid rgba(255, 255, 255, 0.05)
 }

 .stats-grid {
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
     text-align: center;
     gap: 30px
 }

 .stat-item h3 {
     font-size: 2.5rem;
     color: white;
     margin-bottom: 5px
 }

 .stat-item p {
     color: var(--text-gray);
     font-size: 0.9rem;
     text-transform: uppercase;
     letter-spacing: 1px
 }

 .grid-3 {
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
     gap: 30px
 }

 .card {
     background: var(--card-bg);
     padding: 40px;
     border-radius: 20px;
     border: 1px solid rgba(255, 255, 255, 0.05);
     transition: transform 0.3s ease, border-color 0.3s ease;
     will-change: transform
 }

 .card:hover {
     transform: translateY(-10px);
     border-color: var(--secondary)
 }

 @media (hover:none) {
     .card:hover {
         transform: none
     }

     .card:active {
         transform: scale(0.98)
     }
 }

 .section-title {
     font-size: 2.5rem;
     text-align: center;
     margin-bottom: 60px
 }

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

 .timeline::before {
     content: '';
     position: absolute;
     left: 20px;
     top: 0;
     bottom: 0;
     width: 2px;
     background: rgba(255, 255, 255, 0.1)
 }

 .version-item {
     margin-bottom: 40px;
     position: relative;
     padding-left: 60px
 }

 .version-dot {
     position: absolute;
     left: 11px;
     top: 5px;
     width: 20px;
     height: 20px;
     background: var(--secondary);
     border-radius: 50%;
     border: 4px solid var(--darker-bg);
     box-shadow: 0 0 10px var(--secondary)
 }

 .version-header {
     cursor: pointer;
     user-select: none;
     display: flex;
     justify-content: space-between;
     align-items: center;
     background: rgba(255, 255, 255, 0.03);
     padding: 15px 25px;
     border-radius: 12px;
     border: 1px solid rgba(255, 255, 255, 0.05);
     transition: 0.3s
 }

 .version-header:hover {
     background: rgba(255, 255, 255, 0.07)
 }

 .v-number {
     font-weight: 700;
     color: var(--secondary);
     margin-right: 15px
 }

 .v-date {
     font-size: 0.85rem;
     color: var(--text-gray)
 }

 .version-content {
     max-height: 0;
     overflow: hidden;
     transition: all 0.35s ease;
     padding: 0 25px;
     opacity: 0
 }

 .version-content.open {
     max-height: 600px;
     padding-top: 15px;
     padding-bottom: 15px;
     opacity: 1
 }

 .change-list li {
     list-style: none;
     margin-bottom: 8px;
     font-size: 0.95rem;
     color: var(--text-gray);
     display: flex;
     align-items: flex-start;
     gap: 10px
 }

 .badge-new {
     background: rgba(16, 185, 129, 0.2);
     color: var(--accent);
     padding: 2px 8px;
     border-radius: 4px;
     font-size: 0.7rem;
     font-weight: 700;
     border: 1px solid rgba(16, 185, 129, 0.3)
 }

 .comparison-table {
     background: rgba(255, 255, 255, 0.02);
     border-radius: 20px;
     overflow: hidden;
     border: 1px solid rgba(255, 255, 255, 0.05)
 }

 .comparison-row {
     display: grid;
     grid-template-columns: 1.2fr 1fr 1fr;
     border-bottom: 1px solid rgba(255, 255, 255, 0.05)
 }

 .comparison-row:last-child {
     border-bottom: none
 }

 .comparison-header {
     background: rgba(47, 128, 237, 0.1)
 }

 .comparison-cell {
     padding: 20px;
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     text-align: center
 }

 .comparison-row:not(.comparison-header) .comparison-cell:first-child {
     align-items: flex-start;
     text-align: left
 }

 .steps-container {
     display: flex;
     flex-direction: column;
     gap: 30px
 }

 .step-item {
     display: flex;
     gap: 25px;
     align-items: flex-start;
     background: rgba(255, 255, 255, 0.02);
     padding: 30px;
     border-radius: 15px;
     border: 1px solid rgba(255, 255, 255, 0.05);
     transition: 0.3s
 }

 .step-number {
     min-width: 60px;
     height: 60px;
     background: var(--gradient-main);
     border-radius: 50%;
     display: flex;
     align-items: center;
     justify-content: center;
     font-size: 1.8rem;
     font-weight: 700;
     color: white;
     box-shadow: 0 4px 15px rgba(47, 128, 237, 0.4)
 }

 .author-section {
     background: linear-gradient(to right, #0f172a, #1e293b)
 }

 .author-box {
     display: flex;
     align-items: center;
     gap: 50px;
     background: rgba(255, 255, 255, 0.03);
     padding: 50px;
     border-radius: 30px;
     border: 1px solid rgba(255, 255, 255, 0.05)
 }

 .author-img {
     width: 200px;
     height: 200px;
     border-radius: 50%;
     object-fit: cover;
     border: 4px solid var(--secondary);
     box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5)
 }

 .social-links a {
     color: var(--text-gray);
     font-size: 1.5rem;
     margin-right: 20px;
     transition: 0.3s
 }

 .social-links a:hover {
     color: white
 }

 .glass-form {
     background: rgba(255, 255, 255, 0.03);
     backdrop-filter: blur(20px);
     padding: 50px;
     border-radius: 20px;
     border: 1px solid rgba(255, 255, 255, 0.1);
     max-width: 700px;
     margin: 0 auto
 }

 .form-control {
     width: 100%;
     padding: 14px;
     background: rgba(0, 0, 0, 0.3);
     border: 1px solid rgba(255, 255, 255, 0.1);
     border-radius: 8px;
     color: white;
     margin-bottom: 20px;
     font-size: 16px;
     font-family: inherit;
     -webkit-appearance: none;
     -moz-appearance: none;
     appearance: none
 }

 .form-control:focus {
     border-color: var(--secondary);
     outline: none;
     background: rgba(0, 0, 0, 0.4)
 }

 select.form-control {
     background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%23f1f5f9" d="M6 8L0 0h12z"/></svg>');
     background-repeat: no-repeat;
     background-position: right 14px center;
     background-size: 12px;
     padding-right: 40px;
     cursor: pointer
 }

 select.form-control option {
     background: #1e293b;
     color: white;
     padding: 10px
 }

 @media (max-width:1024px) {
     .container {
         padding: 0 30px
     }

     .hero h1 {
         font-size: 3rem
     }

     .features-grid,
     .pain-grid {
         grid-template-columns: repeat(2, 1fr)
     }

     .section-padding {
         padding: 80px 0
     }

     .author-box {
         gap: 30px;
         padding: 40px
     }

     .glass-form {
         padding: 40px
     }
 }

 @media (max-width:768px) {
     .mobile-menu-toggle {
         display: flex
     }

     .nav-links {
         position: fixed;
         top: 0;
         right: -100%;
         width: 70%;
         max-width: 300px;
         height: 100vh;
         background: rgba(2, 6, 23, 0.98);
         backdrop-filter: blur(20px);
         flex-direction: column;
         justify-content: flex-start;
         padding: 100px 30px 30px;
         gap: 25px;
         transition: right 0.3s ease;
         box-shadow: -5px 0 30px rgba(0, 0, 0, 0.5);
         overflow-y: auto;
         z-index: 999
     }

     .nav-links.active {
         right: 0
     }

     .nav-links a {
         width: 100%;
         padding: 12px 0;
         font-size: 1.1rem;
         border-bottom: 1px solid rgba(255, 255, 255, 0.1);
         text-align: left
     }

     .nav-links .btn-primary {
         width: 100%;
         justify-content: center;
         margin-top: 20px;
         border-bottom: none
     }

     .lang-toggle {
         width: 100%;
         justify-content: center;
         padding: 10px;
         margin-top: 10px
     }

     body.menu-open {
         overflow: hidden;
         position: fixed;
         width: 100%
     }

     .hero {
         padding: 140px 0 80px;
         min-height: auto
     }

     .hero .nav-flex {
         flex-direction: column;
         gap: 40px
     }

     .hero-content {
         text-align: center
     }

     .hero h1 {
         font-size: 2.2rem;
         line-height: 1.2
     }

     .hero p {
         font-size: 1.05rem;
         max-width: 100%
     }

     .hero-image {
         width: 100%;
         max-width: 400px
     }

     .section-padding {
         padding: 60px 0
     }

     .section-title {
         font-size: 2rem;
         margin-bottom: 30px
     }

     .stats-grid {
         grid-template-columns: 1fr;
         gap: 30px
     }

     .features-grid,
     .pain-grid {
         grid-template-columns: 1fr;
         gap: 25px
     }

     .card {
         padding: 30px 25px
     }

     .comparison-row {
         grid-template-columns: 1fr;
         gap: 15px
     }

     .demo-card {
         padding: 30px 20px
     }

     .step-item {
         flex-direction: column;
         text-align: center;
         gap: 20px
     }

     .step-number {
         margin: 0 auto
     }

     .author-box {
         flex-direction: column;
         text-align: center;
         padding: 30px 20px;
         gap: 30px
     }

     .author-img {
         width: 150px;
         height: 150px
     }

     .glass-form {
         padding: 30px 20px
     }

     .container {
         padding: 0 20px
     }
 }

 @media (max-width:480px) {
     .logo img {
         height: 50px
     }

     .hero h1 {
         font-size: 1.8rem
     }

     .hero p {
         font-size: 0.95rem
     }

     .section-title {
         font-size: 1.6rem
     }

     .btn {
         padding: 10px 20px;
         font-size: 0.9rem
     }

     .card h3,
     .demo-card h3 {
         font-size: 1.3rem
     }

     .card {
         padding: 25px 20px
     }

     .nav-links {
         width: 85%;
         padding: 80px 20px 20px
     }

     .container {
         padding: 0 15px
     }

     .stat-item h3 {
         font-size: 2rem
     }

     .stat-item p {
         font-size: 0.8rem
     }

     .timeline::before {
         left: 10px
     }

     .version-item {
         padding: 40px
     }

     .version-dot {
         left: 1px;
         width: 18px;
         height: 18px
     }

     .version-header {
         padding: 12px 15px;
         flex-direction: column;
         align-items: flex-start;
         gap: 8px
     }

     .v-number {
         margin-right: 0
     }
 }