:root {
    --primary-bg: #0f1736;
    --secondary-bg: #1e2937;
    --gradient-bg: linear-gradient(180deg, #0f1736 0%, #1e2937 100%);
    --accent-blue: #0ea5e9;
    --accent-purple: #6366f1;
    --accent-violet: #a855f7;
    --button-primary: #4f46e5;
    --text-white: #ffffff;
    --text-black: #000000;
    --text-gray: #64748b;
    --card-bg: #f1f5f9;
    --card-bg-alt: #e2e8f0;
    --border-radius: 6px;
    --font-family: 'Lexend', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background: var(--primary-bg);
    color: var(--text-white);
    line-height: 1.6;
}

.header {
    background: var(--primary-bg);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 0;
}

.navbar-brand {
    color: var(--text-white) !important;
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
}

.brand-text {
    letter-spacing: 0.1em;
}

.navbar-nav .nav-link {
    color: var(--text-white) !important;
    font-weight: 500;
    margin: 0 1rem;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--accent-blue) !important;
}

.navbar-toggler {
    border: none;
    padding: 0;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.main-content {
    background: var(--gradient-bg);
    min-height: 100vh;
}

.hero-section {
    padding: 6rem 0;
    text-align: center;
}

.hero-title {
    font-size: 72px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -1.8px;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--text-white) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    margin-top: 2rem;
}

.btn-primary {
    background: var(--button-primary);
    border: none;
    border-radius: var(--border-radius);
    padding: 12px 24px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: #3730a3;
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-white);
    border-radius: var(--border-radius);
    padding: 12px 24px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
}

.btn-outline-primary {
    border: 2px solid var(--button-primary);
    color: var(--button-primary);
    background: transparent;
    border-radius: var(--border-radius);
    padding: 12px 24px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background: var(--button-primary);
    color: var(--text-white);
}

.features-section {
    padding: 6rem 0;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.section-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 3rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    padding: 2.5rem;
    text-align: center;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-card-blue {
    background: rgba(14, 165, 233, 0.2);
    border: 1px solid rgba(14, 165, 233, 0.3);
}

.feature-card-purple {
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.feature-card-violet {
    background: rgba(168, 85, 247, 0.2);
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.feature-card-purple .feature-icon {
    color: var(--accent-purple);
}

.feature-card-violet .feature-icon {
    color: var(--accent-violet);
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.6;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.feature-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.visualizations-section {
    padding: 6rem 0;
    background: rgba(30, 41, 59, 0.8);
}

.analytics-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    color: var(--text-black);
    height: 100%;
}

.analytics-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-bg);
}

.analytics-subtitle {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.chart-placeholder {
    background: rgba(14, 165, 233, 0.1);
    border-radius: 8px;
    padding: 2rem;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-flow {
    text-align: center;
}

.flow-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.flow-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.flow-label {
    color: var(--text-gray);
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.flow-result {
    font-weight: 600;
    color: var(--primary-bg);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.metric-item {
    background: rgba(14, 165, 233, 0.1);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}

.metric-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-gray);
    margin-bottom: 0.5rem;
}

.metric-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-bg);
}

.pricing-preview-section {
    padding: 6rem 0;
    background: var(--card-bg);
    color: var(--text-black);
}

.pricing-preview-section .section-title {
    color: var(--primary-bg);
}

.pricing-preview-section .section-subtitle {
    color: var(--text-gray);
}

.pricing-card {
    background: var(--text-white);
    border-radius: 12px;
    padding: 2.5rem;
    text-align: center;
    height: 100%;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-5px);
}

.pricing-card-enterprise {
    background: var(--primary-bg);
    color: var(--text-white);
    border-color: var(--accent-blue);
}

.pricing-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 1rem;
}

.pricing-description {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.pricing-card-enterprise .pricing-description {
    color: rgba(255, 255, 255, 0.7);
}

.pricing-price {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.pricing-unit {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.pricing-card-enterprise .pricing-unit {
    color: rgba(255, 255, 255, 0.7);
}

.pricing-features {
    list-style: none;
    margin-top: 2rem;
    text-align: left;
}

.pricing-features li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features i {
    color: var(--accent-blue);
    font-size: 0.875rem;
}

.footer {
    background: var(--primary-bg);
    padding: 3rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
}

.footer-links {
    display: flex;
    gap: 2rem;
    justify-content: flex-end;
    align-items: center;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-contact {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    line-height: 1.6;
}

.footer-contact p {
    margin-bottom: 0.25rem;
}

.copyright {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-form-section {
    padding: 4rem 0;
    background: rgba(30, 41, 59, 0.8);
}

.contact-form-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 3rem;
    color: var(--text-black);
}

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

.form-control, .form-select {
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 0.2rem rgba(14, 165, 233, 0.25);
}

.form-control.is-valid {
    border-color: #22c55e;
}

.form-control.is-invalid {
    border-color: #ef4444;
}

.form-check-input:checked {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.contact-info-section {
    padding: 4rem 0;
    background: var(--card-bg);
    color: var(--text-black);
}

.contact-info-card {
    text-align: center;
    padding: 2rem;
    background: var(--text-white);
    border-radius: 12px;
    height: 100%;
    transition: transform 0.3s ease;
}

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

.contact-icon {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
}

.contact-info-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-bg);
}

.contact-info-card p {
    color: var(--text-gray);
    margin: 0;
}

.legal-section {
    padding: 4rem 0;
    background: var(--card-bg);
    color: var(--text-black);
    min-height: 100vh;
}

.legal-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 1rem;
}

.legal-updated {
    color: var(--text-gray);
    font-style: italic;
    margin-bottom: 3rem;
}

.legal-content {
    line-height: 1.8;
}

.legal-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.legal-content p {
    margin-bottom: 1.5rem;
    color: var(--text-black);
}

.legal-content ul {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
    color: var(--text-black);
}

.pricing-section {
    padding: 4rem 0;
    background: var(--card-bg);
    color: var(--text-black);
}

.pricing-card-featured {
    position: relative;
    border: 2px solid var(--accent-blue);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-blue);
    color: var(--text-white);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    margin-bottom: 2rem;
}

.pricing-faq-section {
    padding: 4rem 0;
    background: rgba(30, 41, 59, 0.8);
}

.accordion-item {
    background: var(--card-bg);
    border: none;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.accordion-button {
    background: var(--card-bg);
    color: var(--primary-bg);
    font-weight: 600;
    border: none;
    border-radius: 8px;
}

.accordion-button:not(.collapsed) {
    background: var(--accent-blue);
    color: var(--text-white);
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(14, 165, 233, 0.25);
}

.accordion-body {
    color: var(--text-black);
    line-height: 1.7;
}

.cta-section {
    padding: 4rem 0;
    background: var(--card-bg);
    color: var(--text-black);
}

.cta-section .section-title {
    color: var(--primary-bg);
}

.cta-section .section-subtitle {
    color: var(--text-gray);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 48px;
        letter-spacing: -1px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .feature-card {
        margin-bottom: 2rem;
    }
    
    .footer-links {
        justify-content: center;
        margin-top: 1rem;
    }
    
    .flow-item {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-section {
        padding: 4rem 0;
    }
    
    .features-section,
    .visualizations-section,
    .pricing-preview-section {
        padding: 4rem 0;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}