:root {
    --orange: #FF6D00;
    --dark-orange: #E65100;
    --light-orange: #FFE0B2;
    --bg-color: #FFF9F2;
    --text-dark: #2D2D2D;
    --text-light: #FFFFFF;
    --shadow: 0 5px 15px rgba(0,0,0,0.08);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--text-light);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    z-index: 100;
    transition: var(--transition);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: var(--orange);
    text-decoration: none;
}

.logo i {
    margin-right: 10px;
    font-size: 28px;
}

.nav-buttons ul {
    display: flex;
    gap: 15px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-buttons li {
    margin: 0;
}

.nav-buttons a.btn {
    display: inline-flex;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    background-color: var(--orange);
    color: var(--text-light);
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(255, 109, 0, 0.2);
    gap: 8px;
}

.btn:hover {
    background-color: var(--dark-orange);
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(255, 109, 0, 0.3);
}

.btn-windows {
    background-color: #FF6D00;
}

.btn-windows:hover {
    background-color: #E65100;
}

/* Secondary Navigation */
.secondary-nav-container {
    padding: 14px 0;
    border-top: 2px solid rgba(0,0,0,0.1);
    background-color: rgba(255,255,255,0.95);
}

.secondary-nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
}

.secondary-nav ul li {
    margin: 0 80px;
}

.secondary-nav ul li a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: bold;
    transition: var(--transition);
    padding: 10px 0;
    position: relative;
    font-family: 'Montserrat', sans-serif;
}

.secondary-nav ul li a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--orange);
    transition: var(--transition);
}

.secondary-nav ul li a:hover {
    color: var(--orange);
}

.secondary-nav ul li a:hover:after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 230px 0 100px;
    background: linear-gradient(135deg, rgba(255,109,0,0.1) 0%, rgba(255,109,0,0.05) 100%);
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,109,0,0.1) 0%, rgba(255,109,0,0) 70%);
    z-index: 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-text {
    width: 50%;
    animation: fadeInLeft 1s ease;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-text h1 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-text p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #555;
}

.hero-image {
    width: 45%;
    position: relative;
    animation: fadeInRight 1s ease;
}

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

.hero-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    transform: rotate(10deg);
}

.hero-image:hover img {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

/* Desktop App Highlights */
.desktop-features {
    padding: 100px 0;
    background-color: var(--light-orange);
    position: relative;
}

.desktop-features:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="%23ffffff" opacity="0.1"><polygon points="1000,100 1000,0 0,100"></polygon></svg>');
    background-size: cover;
}

.desktop-features .container {
    display: flex;
    align-items: center;
    gap: 50px;
    position: relative;
    z-index: 1;
}

.desktop-screenshot {
    width: 50%;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.1);
    transition: var(--transition);
}

.desktop-screenshot:hover {
    transform: scale(1.02);
}

.desktop-features-list {
    width: 50%;
}

.desktop-feature-item {
    display: flex;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255,255,255,0.7);
    border-radius: 8px;
    transition: var(--transition);
}

.desktop-feature-item:hover {
    background: white;
    transform: translateX(10px);
    box-shadow: var(--shadow);
}

.desktop-feature-icon {
    font-size: 24px;
    color: var(--orange);
    margin-right: 15px;
    flex-shrink: 0;
    background: rgba(255,109,0,0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.desktop-feature-text h3 {
    margin-bottom: 5px;
}

/* Features */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    color: var(--text-dark);
    position: relative;
    display: inline-block;
    margin-bottom: 25px;
    padding-bottom: 10px;
}

.section-title h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--orange);
    border-radius: 3px;
    background: linear-gradient(90deg, var(--orange), var(--dark-orange));
    box-shadow: 0 2px 5px rgba(255, 109, 0, 0.3);
}

.section-title p {
    color: #777;
    max-width: 600px;
    margin: 0 auto;
}

.windows-badge {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #0078D7, #004E8C);
    color: white;
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 25px;
    box-shadow: 0 3px 10px rgba(0, 120, 215, 0.2);
    transition: var(--transition);
}

.windows-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 120, 215, 0.3);
}

.windows-badge i {
    margin-right: 10px;
    font-size: 20px;
}

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

.feature-card {
    background-color: var(--text-light);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--orange), var(--dark-orange));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.feature-card:hover:before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 50px;
    margin-bottom: 20px;
    color: var(--orange);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 22px;
}

/* Download */
.download {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(255,109,0,0.05) 0%, rgba(255,109,0,0.02) 100%);
    position: relative;
}

.download:before {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,109,0,0.05) 0%, rgba(255,109,0,0) 70%);
    z-index: 0;
}

.download .container {
    position: relative;
    z-index: 1;
}

.download h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.download p {
    color: #777;
    max-width: 600px;
    margin: 0 auto 40px;
}

.windows-only {
    background-color: #F3F9FF;
    border: 1px solid #0078D7;
    border-radius: 8px;
    padding: 15px;
    max-width: 600px;
    margin: 0 auto 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.windows-only:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,120,215,0.1);
}

.windows-only i {
    color: #0078D7;
    font-size: 24px;
    margin-right: 10px;
}

.windows-only-text {
    color: #0078D7;
    font-weight: 600;
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
}

.download-option {
    background-color: white;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    width: 300px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.download-option:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--orange), var(--dark-orange));
}

.download-option:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.download-option h3 {
    margin-bottom: 15px;
    color: var(--orange);
}

.download-option-icon {
    font-size: 40px;
    margin-bottom: 20px;
    color: var(--orange);
    transition: var(--transition);
}

.download-option:hover .download-option-icon {
    transform: scale(1.1);
}

.os-requirements {
    margin-top: 30px;
    font-size: 14px;
    color: #666;
    text-align: left;
}

.os-requirements h4 {
    margin-bottom: 10px;
    color: var(--text-dark);
}

/* Security Features */
.security-features {
    padding: 100px 0;
    background-color: #f8f8f8;
    position: relative;
}

.security-features:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="%23ffffff" opacity="0.3"><polygon points="0,0 1000,100 1000,0"></polygon></svg>');
    background-size: cover;
}

.security-features .container {
    position: relative;
    z-index: 1;
}

.security-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.security-feature-card {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.security-feature-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, var(--orange), var(--dark-orange));
    transform: scaleY(0);
    transform-origin: top;
    transition: var(--transition);
}

.security-feature-card:hover {
    transform: translateY(-5px);
}

.security-feature-card:hover:before {
    transform: scaleY(1);
}

.security-feature-card h3 {
    color: var(--dark-orange);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.security-feature-card h3 i {
    margin-right: 10px;
    font-size: 24px;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--dark-orange), #B33C00);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    margin-bottom: 20px;
    font-size: 20px;
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.footer-column h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--light-orange);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.footer-column ul li i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.footer-column ul li a {
    color: var(--light-orange);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: white;
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    color: white;
    font-size: 20px;
    transition: var(--transition);
    background: rgba(255,255,255,0.1);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-links a:hover {
    transform: translateY(-3px);
    background: rgba(255,255,255,0.2);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--light-orange);
    font-size: 14px;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--orange);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 99;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--dark-orange);
    transform: translateY(-5px);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content, .desktop-features .container {
        flex-direction: column;
    }
    
    .hero-text, .hero-image, .desktop-screenshot, .desktop-features-list {
        width: 100%;
        text-align: center;
    }
    
    .hero-text, .desktop-features-list {
        margin-bottom: 50px;
    }
    
    .features-grid, .security-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-options {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .secondary-nav ul li {
        margin: 0 40px;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: 20px;
    }
    
    .nav-buttons ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-buttons li {
        margin-bottom: 10px;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }
    
    .features-grid, .security-features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .secondary-nav ul {
        flex-wrap: wrap;
    }
    
    .secondary-nav ul li {
        margin: 0 10px 5px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* Product polish */
:root {
    --orange: #F97316;
    --dark-orange: #C2410C;
    --light-orange: #FFF1E7;
    --bg-color: #F5F7FB;
    --text-dark: #111827;
    --muted: #5B6475;
    --blue: #2563EB;
    --green: #10B981;
    --panel: #FFFFFF;
    --line: #E5E7EB;
    --shadow: 0 18px 50px rgba(17, 24, 39, 0.12);
}

body {
    background: var(--bg-color);
    color: var(--text-dark);
}

header {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(229, 231, 235, 0.9);
    box-shadow: none;
}

.header-container {
    padding: 16px 20px;
}

.logo {
    color: var(--text-dark);
    gap: 10px;
}

.logo i {
    color: var(--orange);
}

.secondary-nav-container {
    border-top: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.82);
}

.secondary-nav ul {
    gap: 34px;
    flex-wrap: wrap;
}

.secondary-nav ul li {
    margin: 0;
}

.secondary-nav ul li a {
    color: var(--muted);
}

.btn {
    border-radius: 8px;
    min-height: 46px;
    padding: 12px 20px;
    box-shadow: 0 12px 26px rgba(249, 115, 22, 0.2);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    background: #111827;
    box-shadow: 0 12px 26px rgba(17, 24, 39, 0.22);
}

.btn-secondary:hover {
    background: #243145;
}

.hero {
    min-height: 620px;
    padding: 190px 0 56px;
    background: #111827 url('https://i.postimg.cc/dVBfQyTZ/2025-06-07-003938.png') center right / cover no-repeat;
    color: #fff;
    isolation: isolate;
}

.hero:before {
    inset: 0;
    width: auto;
    height: auto;
    border-radius: 0;
    background: linear-gradient(90deg, rgba(17, 24, 39, 0.92) 0%, rgba(17, 24, 39, 0.72) 46%, rgba(17, 24, 39, 0.2) 100%);
    z-index: 0;
}

.hero-content {
    display: block;
    position: relative;
    z-index: 1;
}

.hero-text {
    width: 680px;
    max-width: 100%;
    position: relative;
    z-index: 2;
    animation: none;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    margin-bottom: 18px;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 8px;
    color: #D7E2FF;
    background: rgba(37, 99, 235, 0.18);
    font-size: 14px;
    font-weight: 700;
}

.hero-text h1 {
    font-size: 56px;
    line-height: 1.05;
    margin-bottom: 22px;
}

.hero-text p {
    color: #E5E7EB;
    font-size: 19px;
    max-width: 660px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 26px;
}

.hero-proof {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.hero-proof span {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    padding: 10px 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: #F8FAFC;
    font-size: 14px;
}

.hero-proof strong {
    color: #93C5FD;
}

.hero-image {
    display: none;
}

.desktop-features,
.security-features,
.download {
    padding: 86px 0;
}

.desktop-features {
    background: #EAF2FF;
}

.desktop-features:before,
.security-features:before,
.download:before {
    display: none;
}

.desktop-features .container {
    display: block;
}

.desktop-features-list {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.desktop-feature-item,
.security-feature-card,
.download-option {
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(17, 24, 39, 0.08);
}

.desktop-feature-item {
    margin-bottom: 0;
    background: rgba(255, 255, 255, 0.88);
}

.desktop-feature-item:hover {
    transform: translateY(-4px);
}

.desktop-feature-icon {
    border-radius: 8px;
    color: var(--blue);
    background: rgba(37, 99, 235, 0.1);
}

.windows-badge {
    border-radius: 8px;
    background: #111827;
    box-shadow: none;
}

.section-title h2:after {
    background: linear-gradient(90deg, var(--blue), var(--green), var(--orange));
    box-shadow: none;
}

.section-title p,
.download p {
    color: var(--muted);
}

.security-features {
    background: #FFFFFF;
}

.security-feature-card:before,
.download-option:before {
    background: linear-gradient(180deg, var(--blue), var(--green));
}

.security-feature-card h3 {
    color: var(--text-dark);
}

.download {
    background: #F8FAFC;
}

.windows-only {
    border: 1px solid rgba(37, 99, 235, 0.25);
    border-radius: 8px;
    background: #EFF6FF;
}

.download-options {
    align-items: stretch;
}

.download-option {
    width: 340px;
}

footer {
    background: #111827;
}

.copyright,
.footer-column ul li a {
    color: #CBD5E1;
}

@media (max-width: 992px) {
    .hero {
        min-height: 640px;
        padding-top: 200px;
    }

    .hero:before {
        background: rgba(17, 24, 39, 0.78);
    }

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

@media (max-width: 768px) {
    .header-container {
        padding: 14px 20px;
    }

    .hero {
        min-height: 700px;
        padding: 238px 0 56px;
    }

    .hero-text h1 {
        font-size: 42px;
    }

    .hero-text p {
        font-size: 17px;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .download-option {
        width: 100%;
    }
}