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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #10b981;
    --accent: #f59e0b;
    --dark: #0f172a;
    --darker: #020617;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--darker);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.logo svg {
    width: 36px;
    height: 36px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--gray-300);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}

.btn-nav {
    background: var(--primary);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: 8px;
    transition: all 0.3s;
}

.btn-nav:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 20px 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at bottom right, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero h1 .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--gray-400);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.5);
}

.btn-secondary {
    background: var(--gray-800);
    color: var(--white);
    border: 1px solid var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-700);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 48px;
}

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

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-400);
}

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

.hero-image {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

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

.hero-image svg {
    width: 200px;
    height: 200px;
    color: var(--white);
}

/* Features Section */
.features {
    padding: 100px 20px;
    background: var(--dark);
}

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

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

.section-badge {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background: var(--gray-900);
    border: 1px solid var(--gray-800);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.1);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 24px;
}

.feature-icon.blue { background: rgba(37, 99, 235, 0.1); color: var(--primary); }
.feature-icon.green { background: rgba(16, 185, 129, 0.1); color: var(--secondary); }
.feature-icon.orange { background: rgba(245, 158, 11, 0.1); color: var(--accent); }
.feature-icon.purple { background: rgba(139, 92, 246, 0.1); color: #8b5cf6; }

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--gray-400);
    line-height: 1.6;
}

/* Platforms Section */
.platforms {
    padding: 100px 20px;
    background: var(--darker);
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.platform-card {
    background: var(--gray-900);
    border: 1px solid var(--gray-800);
    border-radius: 16px;
    padding: 32px 20px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.platform-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    background: var(--gray-800);
}

.platform-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.platform-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.platform-card p {
    font-size: 14px;
    color: var(--gray-400);
}

/* Use Cases Section */
.use-cases {
    padding: 100px 20px;
    background: var(--dark);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.use-case-card {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    border: 1px solid var(--gray-800);
    border-radius: 24px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
}

.use-case-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
}

.use-case-icon {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 24px;
}

.use-case-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.use-case-card p {
    font-size: 16px;
    color: var(--gray-400);
    line-height: 1.7;
}

.use-case-list {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.use-case-tag {
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--primary);
}

/* Security Section */
.security {
    padding: 100px 20px;
    background: var(--darker);
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.security-info h2 {
    font-size: 40px;
    margin-bottom: 24px;
}

.security-info > p {
    font-size: 18px;
    color: var(--gray-400);
    margin-bottom: 32px;
}

.security-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.security-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.security-feature-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(37, 99, 235, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.security-feature h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.security-feature p {
    font-size: 14px;
    color: var(--gray-400);
}

.security-visual {
    position: relative;
}

.security-card {
    background: var(--gray-900);
    border: 1px solid var(--gray-800);
    border-radius: 24px;
    padding: 40px;
}

.security-card h3 {
    font-size: 20px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.protocol-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.protocol-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: var(--gray-800);
    border-radius: 12px;
}

.protocol-name {
    font-weight: 600;
}

.protocol-badge {
    background: var(--secondary);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

/* Pricing Section */
.pricing {
    padding: 100px 20px;
    background: var(--dark);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--gray-900);
    border: 2px solid var(--gray-800);
    border-radius: 24px;
    padding: 48px;
    position: relative;
    transition: all 0.3s;
}

.pricing-card.featured {
    border-color: var(--primary);
}

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

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.pricing-header h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.pricing-header p {
    color: var(--gray-400);
}

.pricing-price {
    text-align: center;
    margin-bottom: 32px;
}

.pricing-price .amount {
    font-size: 48px;
    font-weight: 700;
}

.pricing-price .period {
    color: var(--gray-400);
    font-size: 16px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-800);
    font-size: 15px;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features .check {
    color: var(--secondary);
}

.pricing-features .cross {
    color: var(--gray-600);
}

.pricing-card .btn {
    width: 100%;
}

/* FAQ Section */
.faq {
    padding: 100px 20px;
    background: var(--darker);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    background: var(--gray-900);
    border: 1px solid var(--gray-800);
    border-radius: 16px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
}

.faq-toggle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.faq-item.active .faq-toggle {
    background: var(--primary);
    transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
    max-height: 200px;
    margin-top: 16px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--gray-400);
    line-height: 1.7;
}

/* CTA Section */
.cta {
    padding: 100px 20px;
    background: var(--dark);
}

.cta-content {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 32px;
    padding: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: pulse 10s linear infinite;
}

@keyframes pulse {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.cta-content h2 {
    font-size: 40px;
    margin-bottom: 16px;
    position: relative;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 32px;
    opacity: 0.9;
    position: relative;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    position: relative;
}

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

.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-3px);
}

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

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* Footer */
.footer {
    background: var(--darker);
    padding: 80px 20px 40px;
    border-top: 1px solid var(--gray-800);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--gray-400);
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.7;
}

.footer-column h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid var(--gray-800);
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: all 0.3s;
}

.social-links a:hover {
    background: var(--primary);
    color: var(--white);
}

/* Download Page Specific */
.download-hero {
    padding: 150px 20px 80px;
    text-align: center;
    position: relative;
}

.download-hero h1 {
    font-size: 48px;
    margin-bottom: 16px;
}

.download-hero p {
    font-size: 20px;
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto;
}

.download-platforms {
    padding: 60px 20px 100px;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.download-card {
    background: var(--gray-900);
    border: 1px solid var(--gray-800);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s;
}

.download-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.15);
}

.download-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
}

.download-card h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.download-card .version {
    color: var(--gray-400);
    font-size: 14px;
    margin-bottom: 24px;
}

.download-card .btn {
    width: 100%;
    margin-bottom: 12px;
}

.download-card .changelog {
    color: var(--gray-400);
    font-size: 13px;
}

/* 404 Page */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
}

.error-content {
    max-width: 600px;
}

.error-code {
    font-size: 150px;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 24px;
}

.error-content h1 {
    font-size: 32px;
    margin-bottom: 16px;
}

.error-content p {
    font-size: 18px;
    color: var(--gray-400);
    margin-bottom: 40px;
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 0;
    }

    .hero h1 {
        font-size: 40px;
    }

    .hero-description {
        margin: 0 auto 40px;
    }

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

    .hero-stats {
        justify-content: center;
    }

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

    .platforms-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .security-content {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero h1 {
        font-size: 32px;
    }

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

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

    .platforms-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .cta-content {
        padding: 60px 30px;
    }

    .cta-content h2 {
        font-size: 28px;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .error-code {
        font-size: 100px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .error-buttons {
        flex-direction: column;
    }
}