* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #ffffff;
    color: #1a202c;
    line-height: 1.7;
    font-weight: 400;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ffffff;
    color: #1a202c;
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #e2e8f0;
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.logo img {
    height: 50px;
    width: auto;
}

.navbar nav {
    display: flex;
    gap: 1rem;
}

.navbar nav a {
    color: #4a5568;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
}

.navbar nav a:hover {
    color: #2563eb;
    background-color: #f1f5f9;
}

.hero {
    text-align: center;
    padding: 6rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.025em;
}

.hero p {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons .btn {
    display: inline-block;
    padding: 1rem 2rem;
    margin: 0.5rem;
    border: none;
    text-decoration: none;
    color: white;
    background-color: #2563eb;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.cta-buttons .btn:hover {
    background-color: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.cta-buttons .btn.secondary {
    background-color: transparent;
    border: 2px solid #2563eb;
    color: #2563eb;
    backdrop-filter: blur(10px);
}

.cta-buttons .btn.secondary:hover {
    background-color: #2563eb;
    color: white;
    border-color: #2563eb;
}

/* Hero section secondary button - white text on gradient background */
.hero .cta-buttons .btn.secondary {
    background-color: transparent;
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: white;
    backdrop-filter: blur(10px);
}

.hero .cta-buttons .btn.secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: white;
    color: white;
}

.features, .use-cases, .about, .contact {
    padding: 5rem 2rem;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.features h2, .use-cases h2, .about h2, .contact h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #1a202c;
    letter-spacing: -0.025em;
}

.feature-list, .use-case-list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature, .use-case {
    flex: 1 1 calc(33.333% - 2rem);
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    min-width: 280px;
    border: 1px solid #f1f5f9;
}

.feature:hover, .use-case:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-color: #e2e8f0;
}

.feature h3, .use-case h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2563eb;
    margin-bottom: 1rem;
}

.contact p a {
    color: #0077b6;
    font-size: 1.2rem;
    text-decoration: none;
    font-weight: bold;
}

.contact p a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 2rem;
    background-color: #1a202c;
    color: #a0aec0;
    font-size: 0.9rem;
    margin-top: 3rem;
    border-top: 1px solid #2d3748;
}

/* Responsive Design */

@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2rem;
    }

    .feature, .use-case {
        flex: 1 1 calc(50% - 1rem);
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .navbar nav {
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
    }

    .logo img {
        height: 40px;
    }

    .hero {
        padding: 3rem 1rem;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .feature, .use-case {
        flex: 1 1 100%;
    }

    .features h2, .use-cases h2, .about h2, .contact h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.6rem;
    }

    .hero p {
        font-size: 0.9rem;
    }

    .cta-buttons .btn {
        font-size: 0.9rem;
        padding: 0.6rem 1rem;
    }

    .navbar nav a {
        font-size: 0.9rem;
    }
}

/* About Section Enhancements */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-text {
    text-align: left;
    margin-bottom: 3rem;
}

.about-text > p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    text-align: center;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.about-feature {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 0.75rem;
    border-left: 4px solid #2563eb;
}

.about-feature h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a202c;
}

.about-feature p {
    color: #4a5568;
    line-height: 1.6;
}

/* Language Selector */
.language-selector {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: 1rem;
}

.language-selector button {
    background: transparent;
    border: 1px solid #e2e8f0;
    color: #4a5568;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.language-selector button:hover {
    background-color: #f1f5f9;
    border-color: #cbd5e0;
}

.language-selector button.active {
    background-color: #2563eb;
    color: white;
    border-color: #2563eb;
}

/* Active navigation link styling */
.navbar nav a.active {
    color: #2563eb !important;
    background-color: #f1f5f9 !important;
    border-radius: 0.375rem;
}

@media (max-width: 768px) {
    .language-selector {
        margin-left: 0;
        margin-top: 1rem;
        justify-content: center;
        width: 100%;
    }
}