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

:root {
    --primary: #3182ce;
    --primary-dark: #2c5282;
    --secondary: #805ad5;
    --text: #2d3748;
    --text-light: #4a5568;
    --background: #f7fafc;
    --white: #ffffff;
    --gray-light: #edf2f7;
}

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

/* --- Responsive Video Demo Section --- */
.video-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    width: 100%;
    max-width: 100vw;
}
.video-wrapper {
    position: relative;
    width: 100%;
    max-width: 100vw;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    border-radius: 12px;
    overflow: hidden;
    background: #000;
}
.video-thumbnail {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    cursor: pointer;
    z-index: 2;
}
.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
    display: block;
}
.play-button {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    transition: all 0.3s ease;
}
.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
}
.video-iframe {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1;
}
.video-iframe iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 12px;
    display: block;
}
@media (max-width: 900px) {
    .container, .video-container { padding: 0 8px; }
    .video-container { max-width: 100vw; }
}
@media (max-width: 768px) {
    .video-demo { padding: 40px 0; }
    .video-wrapper { border-radius: 8px; }
    .video-thumbnail img, .video-iframe iframe { border-radius: 8px; }
}
@media (max-width: 480px) {
    .video-demo { padding: 24px 0; }
    .video-wrapper { border-radius: 4px; }
    .video-thumbnail img, .video-iframe iframe { border-radius: 4px; }
}

body {
    color: #2d3748;
    color: var(--text, #2d3748);
    background-color: #f7fafc;
    background-color: var(--background, #f7fafc);
    line-height: 1.6;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

header {
    background-color: #fff;
    background-color: var(--white, #fff);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    transition: box-shadow 0.2s;
}

header.scrolled {
    box-shadow: 0 4px 24px rgba(44, 82, 130, 0.13);
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo img {
    height: 40px;
    vertical-align: middle;
    margin-right: 0;
}

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

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

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

.nav-links a.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    padding-bottom: 2px;
}

.cta-button {
    background-color: #3182ce;
    background-color: var(--primary, #3182ce);
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.3s, transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 2px 8px rgba(49, 130, 206, 0.08);
}

.cta-button:hover, .cta-button:focus {
    background-color: #2c5282;
    background-color: var(--primary-dark, #2c5282);
    transform: scale(1.045);
    box-shadow: 0 6px 24px rgba(49, 130, 206, 0.18);
}

.cta-button:active {
    transform: scale(0.98);
    box-shadow: 0 1px 4px rgba(49, 130, 206, 0.10);
}

.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: linear-gradient(135deg, #f6f9fc 0%, #e9f2fa 100%);
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text);
}

.hero p {
    font-size: 20px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-image {
    margin: 40px auto 32px auto;
    max-width: 900px;
    min-width: 320px;
    width: 100%;
    display: flex;
    justify-content: center;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 6px 32px rgba(44, 82, 130, 0.13);
    border: 1px solid #e2e8f0;
}

/* Video Demo Section */
.video-demo {
    padding: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

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

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.features {
    padding: 100px 0;
    background: linear-gradient(135deg, #f7fafc 0%, #e9f2fa 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background-color: var(--gray-light);
    border-radius: 10px;
    padding: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-light);
}

.cta-section {
    padding: 80px 0;
    background: #3182ce;
    background: linear-gradient(135deg, #3182ce 0%, #2c5282 100%);
    background: linear-gradient(135deg, var(--primary, #3182ce) 0%, var(--primary-dark, #2c5282) 100%);
    color: #fff;
    text-align: center;
}

.cta-section h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.cta-button.primary {
    background: white;
    color: var(--primary);
    font-size: 18px;
    padding: 16px 32px;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.cta-button.primary:hover {
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.cta-subtitle {
    font-size: 14px;
    opacity: 0.8;
    margin: 0;
}

footer {
    background-color: #2d3748;
    background-color: var(--text, #2d3748);
    color: #fff;
    color: var(--white, #fff);
    padding: 60px 0 30px;
}

.footer-content {
    display: block;
    padding: 0;
    margin-bottom: 0;
}

.footer-content.simple-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 18px;
    padding: 0 0 12px 0;
}

.footer-link {
    color: #cbd5e0;
    text-decoration: none;
    font-size: 1.08rem;
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--primary);
}

.footer-separator {
    color: #718096;
    font-size: 1.1rem;
    margin: 0 6px;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #4a5568;
    color: #cbd5e0;
    font-size: 14px;
}

.footer-content.legal-contact-footer {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 60px;
    margin-bottom: 0;
    padding: 0 0 12px 0;
}
.footer-column {
    min-width: 160px;
}
.footer-column h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 0.01em;
}
.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-column ul li {
    margin-bottom: 8px;
}
.footer-link {
    color: #cbd5e0;
    text-decoration: none;
    font-size: 1.05rem;
    transition: color 0.2s;
}
.footer-link:hover {
    color: var(--primary);
}
@media (max-width: 700px) {
    .footer-content.legal-contact-footer {
        flex-direction: column;
        align-items: center;
        gap: 18px;
    }
    .footer-column {
        min-width: 0;
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }
    .hero p {
        font-size: 18px;
    }
    .section-title h2 {
        font-size: 30px;
    }
    .nav-links {
        display: none;
    }
}

/* Tablet navigation optimization */
@media (max-width: 1024px) and (min-width: 769px) {
    .nav-links {
        gap: 20px;
    }
    
    .nav-links a {
        font-size: 14px;
        padding: 8px 12px;
    }
    
    .header-container {
        padding: 16px 20px;
    }
    
    .cta-button {
        padding: 8px 16px;
        font-size: 14px;
    }
}

@media (max-width: 600px) {
    .screenshots-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .screenshot-img {
        height: 140px;
        max-width: 100%;
    }
    .logo img {
        height: 28px;
        margin-right: 0;
    }
    .hero-image {
        max-width: 98vw;
        margin: 18px auto 16px auto;
    }
}

@media (max-width: 900px) {
    .hero-image {
        max-width: 98vw;
        min-width: 0;
        margin: 24px auto 18px auto;
    }
    .hero-image img {
        border-radius: 12px;
    }
}

.app-demo {
    padding: 80px 0;
    background: #fff;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.screenshot-card {
    background: #edf2f7;
    background: var(--gray-light, #edf2f7);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(44, 82, 130, 0.06);
    padding: 24px 16px 16px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.screenshot-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 24px rgba(44, 82, 130, 0.10);
}

.screenshot-img {
    width: 100%;
    max-width: 320px;
    height: 180px;
    background: #e2e8f0;
    border-radius: 8px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #a0aec0;
    overflow: hidden;
}

.screenshot-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.screenshot-caption {
    font-size: 16px;
    color: #4a5568;
    color: var(--text-light, #4a5568);
    text-align: center;
    margin-top: 4px;
}

.screenshot-card a {
    display: block;
    border-radius: 8px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.screenshot-card a:hover .screenshot-img {
    box-shadow: 0 8px 32px rgba(49, 130, 206, 0.18);
    transform: scale(1.04);
    cursor: zoom-in;
}

.lightbox-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(30, 41, 59, 0.88);
    display: flex;
    flex-direction: column !important;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.2s;
    opacity: 1;
}
.lightbox-overlay[style*="display:none"] {
    opacity: 0;
    pointer-events: none;
}
.lightbox-img {
    max-width: 92vw;
    max-height: 80vh;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(44, 82, 130, 0.18);
    background: #fff;
    border: 2px solid #e2e8f0;
    object-fit: contain;
    transition: box-shadow 0.2s;
}
.lightbox-close {
    position: absolute;
    top: 32px;
    right: 48px;
    font-size: 2.5rem;
    color: #fff;
    cursor: pointer;
    z-index: 10001;
    background: rgba(30,41,59,0.5);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}
.lightbox-close:hover {
    background: rgba(30,41,59,0.85);
}
@media (max-width: 600px) {
    .lightbox-overlay {
        flex-direction: column;
    }
    .lightbox-close {
        top: 12px;
        right: 16px;
        font-size: 2rem;
        width: 36px;
        height: 36px;
    }
}

.privacy-section {
    padding: 80px 0 60px 0;
    background: #f7fafc;
}
.privacy-section .section-title h2 {
    font-size: 2.2rem;
    margin-bottom: 24px;
    color: #2c5282;
    color: var(--primary-dark, #2c5282);
}
.privacy-list {
    list-style: none;
    padding: 0;
    max-width: 700px;
    margin: 0 auto;
}
.privacy-list li {
    font-size: 1.13rem;
    color: #4a5568;
    color: var(--text-light, #4a5568);
    background: #edf2f7;
    background: var(--gray-light, #edf2f7);
    border-radius: 8px;
    margin-bottom: 18px;
    padding: 18px 22px;
    box-shadow: 0 2px 8px rgba(44, 82, 130, 0.04);
    line-height: 1.6;
}
.privacy-list b {
    color: #3182ce;
    color: var(--primary, #3182ce);
}
@media (max-width: 600px) {
    .privacy-section {
        padding: 48px 0 32px 0;
    }
    .privacy-list li {
        font-size: 1rem;
        padding: 14px 10px;
    }
}

html {
    scroll-behavior: smooth;
}

.lightbox-caption {
    color: #fff;
    background: rgba(30,41,59,0.85);
    padding: 14px 24px;
    border-radius: 8px;
    margin-top: 18px;
    font-size: 1.08rem;
    text-align: center;
    max-width: 90vw;
    width: 100vw;
    box-sizing: border-box;
    box-shadow: 0 2px 8px rgba(44, 82, 130, 0.18);
    position: relative;
    z-index: 10002;
}
@media (max-width: 600px) {
    .lightbox-caption {
        font-size: 0.98rem;
        padding: 10px 8px;
        margin-top: 10px;
        max-width: 98vw;
        width: 98vw;
    }
}

.privacy-container {
    max-width: 700px;
    margin: 140px auto 60px auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 16px rgba(44,82,130,0.07);
    padding: 36px 24px 32px 24px;
}
.privacy-container h1 {
    font-size: 2.1rem;
    color: var(--primary-dark);
    margin-bottom: 18px;
}
.privacy-container h2 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-top: 32px;
}
.privacy-container ul, .privacy-container ol {
    margin-left: 18px;
}
.privacy-container li {
    margin-bottom: 10px;
}
@media (max-width: 600px) {
    .privacy-container {
        margin-top: 140px;
        padding: 16px 4vw;
    }
}

.back-to-home {
    display: inline-block;
    margin-bottom: 24px;
    color: #3182ce;
    color: var(--primary, #3182ce);
    background: #e9f2fa;
    padding: 8px 18px;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    font-size: 1.05rem;
    transition: background 0.18s, color 0.18s;
}
.back-to-home:hover {
    background: #3182ce;
    background: var(--primary, #3182ce);
    color: #fff;
    text-decoration: none;
}

/* Key Benefits Section */
.key-benefits {
    padding: 100px 0;
    background: #fff;
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
    background: linear-gradient(135deg, var(--white, #fff) 0%, var(--background, #f8fafc) 100%);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.benefit-card {
    background: #fff;
    background: var(--white, #fff);
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: 0 4px 20px rgba(44, 82, 130, 0.08);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: #3182ce;
    background: linear-gradient(90deg, #3182ce, #805ad5);
    background: linear-gradient(90deg, var(--primary, #3182ce), var(--secondary, #805ad5));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(44, 82, 130, 0.15);
}

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

.benefit-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
    color: #3182ce;
    color: var(--primary, #3182ce);
}

.benefit-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #2d3748;
    color: var(--text, #2d3748);
    line-height: 1.3;
}

.benefit-card p {
    font-size: 16px;
    line-height: 1.6;
    color: #4a5568;
    color: var(--text-light, #4a5568);
    margin: 0;
}

/* Mobile responsiveness for benefits */
@media (max-width: 768px) {
    .key-benefits {
        padding: 80px 0;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 40px;
    }
    
    .benefit-card {
        padding: 30px 24px;
    }
    
    .benefit-icon {
        font-size: 40px;
        margin-bottom: 20px;
    }
    
    .benefit-card h3 {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .benefit-card {
        padding: 24px 20px;
    }
    
    .benefit-icon {
        font-size: 36px;
    }
    
    .benefit-card h3 {
        font-size: 18px;
    }
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(135deg, #f7fafc 0%, #e9f2fa 100%);
}

.workflow-steps {
    display: flex;
    flex-direction: column;
    gap: 40px;
    max-width: 800px;
    margin: 60px auto 0;
}

.workflow-step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 32px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(44, 82, 130, 0.08);
    border: 1px solid #e2e8f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.workflow-step:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(44, 82, 130, 0.12);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #2d3748;
    color: var(--text, #2d3748);
}

.step-content p {
    font-size: 16px;
    line-height: 1.6;
    color: #4a5568;
    color: var(--text-light, #4a5568);
    margin: 0;
}

/* Mobile responsiveness for workflow */
@media (max-width: 768px) {
    .how-it-works {
        padding: 80px 0;
    }
    
    .workflow-steps {
        gap: 30px;
        margin-top: 40px;
    }
    
    .workflow-step {
        padding: 24px;
        gap: 20px;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .step-content h3 {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .workflow-step {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .step-number {
        align-self: center;
    }
}