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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.logo-text-link {
    text-decoration: none;
    color: inherit;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #2d3748;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    text-decoration: none;
    color: #4a5568;
    font-weight: 600;
    font-size: 16px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #3b82f6;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #3b82f6;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.btn-download {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3), 0 3px 10px rgba(59, 130, 246, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-download::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-download:hover::before {
    left: 100%;
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4), 0 4px 15px rgba(59, 130, 246, 0.3);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    text-align: center;
    color: white;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.6;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
}

/* Product Demo Section */
.product-demo {
    padding: 120px 0 100px;
    background: #f8fafc;
    min-height: 100vh;
}

.tab-navigation {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.tab-btn {
    background: white;
    border: 2px solid #e2e8f0;
    color: #4a5568;
    padding: 20px 30px;
    border-radius: 16px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 250px;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.tab-btn:hover {
    border-color: #3b82f6;
    color: #3b82f6;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.tab-btn.active {
    background: #3b82f6;
    border-color: #3b82f6;
    color: white;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.tab-btn i {
    font-size: 20px;
}

.tab-content {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-pane {
    display: none;
    background: white;
    border-radius: 20px;
    padding: 60px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.tab-pane.active {
    display: block;
    animation: fadeInUp 0.6s ease;
}

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

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

.feature-text h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: #2d3748;
    margin-bottom: 20px;
}

.feature-text p {
    font-size: 1.125rem;
    color: #718096;
    margin-bottom: 30px;
    line-height: 1.7;
}

.feature-benefits {
    list-style: none;
    margin-bottom: 40px;
}

.feature-benefits li {
    padding: 12px 0;
    color: #4a5568;
    font-weight: 500;
    position: relative;
    padding-left: 30px;
}

.feature-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
    font-size: 18px;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 16px 32px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3), 0 4px 10px rgba(59, 130, 246, 0.2);
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.4), 0 6px 15px rgba(59, 130, 246, 0.3);
}

.feature-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.demo-image {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.demo-image:hover {
    transform: scale(1.02);
}

/* Footer */
.footer {
    background: #2d3748;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    overflow: hidden;
}

.footer-logo .logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.footer-logo .logo-text {
    font-size: 24px;
    font-weight: 700;
    color: white;
}

.footer-brand p {
    color: #a0aec0;
    margin-left: 20px;
}

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

.footer-links a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #4a5568;
    color: #a0aec0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .tab-navigation {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        min-width: 200px;
        padding: 16px 24px;
    }
    
    .feature-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .feature-text h2 {
        font-size: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .tab-pane {
        padding: 40px 30px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn-primary {
        padding: 14px 28px;
        font-size: 16px;
    }
    
    .tab-pane {
        padding: 30px 20px;
    }
    
    .feature-text h2 {
        font-size: 1.75rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}