/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --secondary-color: #8B5CF6;
    --secondary-dark: #7C3AED;
    --accent-color: #EC4899;
    --accent-dark: #DB2777;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-dark: #111827;
    --bg-gradient-start: #6366F1;
    --bg-gradient-end: #8B5CF6;
    --border-color: #E5E7EB;
    --shadow: 0 4px 6px rgba(99, 102, 241, 0.1);
    --shadow-lg: 0 10px 25px rgba(99, 102, 241, 0.15);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

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

/* Header and Navigation */
.header {
    background: var(--bg-primary);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.nav-brand a:hover {
    color: var(--primary-dark);
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-brand a:hover .logo-img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.85;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.6s both;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    background: #F9FAFB;
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.1);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.2);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Download Section */
.download {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: white;
    text-align: center;
}

.download-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.download-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Compatibility Section */
.compatibility {
    padding: 5rem 0;
    background: var(--bg-primary);
}

.version-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.version-item {
    background: var(--bg-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.compatibility-note {
    text-align: center;
    margin-top: 2rem;
}

.compatibility-note a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.compatibility-note a:hover {
    text-decoration: underline;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Content Section */
.content-section {
    padding: 4rem 0;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.content-wrapper h2 {
    font-size: 2rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.content-wrapper h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.content-wrapper p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.content-wrapper ul,
.content-wrapper ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.content-wrapper li {
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.content-wrapper a {
    color: var(--primary-color);
    text-decoration: none;
}

.content-wrapper a:hover {
    text-decoration: underline;
}

/* Warning/Info Boxes */
.warning-box,
.info-box,
.notes-box {
    padding: 1.5rem;
    border-radius: 8px;
    margin: 2rem 0;
    border-left: 4px solid;
}

.warning-box {
    background: #FFF3CD;
    border-color: #FFC107;
    color: #856404;
}

.info-box {
    background: #D1ECF1;
    border-color: #0D6EFD;
    color: #0C5460;
}

.notes-box {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

/* Steps */
.step {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-content h3 {
    margin-top: 0;
}

/* Installation Methods */
.installation-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.method-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.method-card h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.method-card ol {
    margin-left: 1.5rem;
}

/* Download Box */
.download-box {
    text-align: center;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    margin: 2rem 0;
}

.download-note {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Troubleshooting */
.troubleshooting {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.trouble-item {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
}

.trouble-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Version Grid */
.version-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.version-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.version-card:hover {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

/* Device List */
.device-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.device-category {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
}

.device-category h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.device-category ul {
    margin-left: 1.5rem;
}

/* Check Version */
.check-version {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
}

/* CTA Box */
.cta-box {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    margin: 3rem 0;
}

.cta-box h3 {
    color: white;
    margin-bottom: 1rem;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
}

.cta-box a {
    color: white;
}

/* Advantages Grid */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.advantage-item {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 8px;
}

.advantage-item h3 {
    margin-top: 0;
    color: var(--primary-color);
}

/* FAQ */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    margin: 0;
    cursor: pointer;
    background: var(--bg-secondary);
    transition: var(--transition);
    font-size: 1.1rem;
    color: var(--text-primary);
}

.faq-question:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding: 1.5rem;
}

.faq-answer p {
    margin-bottom: 1rem;
}

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin: 2rem 0;
}

.contact-method {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.method-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.contact-method h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.contact-link:hover {
    text-decoration: underline;
}

.response-time {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
}

/* Contact Form */
.contact-form-container {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 12px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.checkbox-label {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input {
    width: auto;
}

/* Form Messages */
.form-message {
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    font-size: 0.95rem;
    line-height: 1.5;
    animation: fadeIn 0.3s ease;
}

.form-message-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.form-message-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Help Resources */
.help-resources {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.resource-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    text-align: center;
}

.resource-card:hover {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.resource-card h3 {
    margin-top: 0;
    color: inherit;
}

.resource-card p {
    color: inherit;
    opacity: 0.9;
}

/* Blog */
.blog-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.blog-post {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.blog-post:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.blog-post.featured {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: white;
    border: none;
}

.blog-post.featured h2,
.blog-post.featured p {
    color: white;
}

.post-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.post-date {
    color: var(--text-secondary);
}

.post-category {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

.blog-post.featured .post-date {
    color: rgba(255, 255, 255, 0.8);
}

.blog-post.featured .post-category {
    background: white;
    color: var(--primary-color);
}

.post-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.post-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.blog-post.featured .read-more {
    color: white;
}

.read-more:hover {
    text-decoration: underline;
}

/* Blog Sidebar */
.blog-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-widget {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
}

.sidebar-widget h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.category-list,
.popular-posts {
    list-style: none;
    margin: 0;
    padding: 0;
}

.category-list li,
.popular-posts li {
    margin-bottom: 0.5rem;
}

.category-list a,
.popular-posts a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.category-list a:hover,
.popular-posts a:hover {
    color: var(--primary-color);
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.newsletter-form input {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.footer-section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .logo-img {
        height: 32px;
    }

    .nav-brand a span {
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .blog-container {
        grid-template-columns: 1fr;
    }

    .step {
        flex-direction: column;
    }

    .step-number {
        align-self: flex-start;
    }

    .installation-methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .page-header h1 {
        font-size: 2rem;
    }
}