:root {
    --primary-color: #0066cc;
    --secondary-color: #00a3e0;
    --accent-color: #ff6b35;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --text-dark: #2c3e50;
    --text-light: #ffffff;
    --success-color: #28a745;
    --border-radius: 12px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Header & Navigation */
header {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #16213e 100%);
    color: var(--text-light);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--secondary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 2rem;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

nav a:hover {
    color: var(--secondary-color);
}

.btn-nav {
    padding: 0.5rem 1.5rem;
    background: var(--accent-color);
    border-radius: 8px;
    transition: var(--transition);
}

.btn-nav:hover {
    background: #ff5722;
    color: var(--text-light) !important;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-light);
    padding: 150px 2rem 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--text-light);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
    background: #ff5722;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--text-light);
}

.btn-secondary:hover {
    background: var(--text-light);
    color: var(--primary-color);
}

/* Features Section */
.features {
    padding: 80px 2rem;
    background: var(--light-bg);
}

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

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 2rem;
    background: white;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    position: relative;
    padding: 2rem;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: var(--border-radius);
    text-align: center;
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(0, 102, 204, 0.3);
}

.step h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.step p {
    color: #555;
}

/* Use Cases Section */
.use-cases {
    padding: 80px 2rem;
    background: var(--light-bg);
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.use-case {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border-left: 5px solid var(--primary-color);
}

.use-case h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.use-case-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.use-case ul {
    list-style: none;
    margin-top: 1rem;
}

.use-case li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
}

.use-case li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* Customer Success Section */
.customer-success {
    padding: 80px 2rem;
    background: white;
}

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    position: relative;
}

.testimonial::before {
    content: '"';
    font-size: 5rem;
    position: absolute;
    top: 10px;
    left: 20px;
    opacity: 0.3;
    font-family: Georgia, serif;
}

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

.testimonial p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    font-weight: bold;
    font-size: 1.1rem;
}

.testimonial-company {
    opacity: 0.9;
    font-size: 0.95rem;
}

/* Pricing Section */
.pricing {
    padding: 80px 2rem;
    background: var(--light-bg);
}

.pricing-card {
    max-width: 500px;
    margin: 3rem auto;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

.pricing-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 2.5rem;
    text-align: center;
}

.pricing-header h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 4rem;
    font-weight: bold;
    margin: 1rem 0;
}

.price-period {
    font-size: 1.2rem;
    opacity: 0.9;
}

.pricing-features {
    padding: 2.5rem;
}

.pricing-features ul {
    list-style: none;
}

.pricing-features li {
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.check-icon {
    color: var(--success-color);
    font-size: 1.3rem;
}

.pricing-cta {
    padding: 2.5rem;
    text-align: center;
    background: #f8f9fa;
}

.pricing-cta .btn {
    width: 100%;
    font-size: 1.2rem;
}

/* FAQ Section */
.faq {
    padding: 80px 2rem;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 3rem auto;
}

.faq-item {
    background: var(--light-bg);
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.faq-question {
    padding: 1.5rem;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: #555;
    line-height: 1.8;
}

/* Footer */
footer {
    background: var(--dark-bg);
    color: var(--text-light);
    padding: 3rem 2rem 1rem;
    text-align: center;
}

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

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

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

.copyright {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .features-grid,
    .use-case-grid,
    .testimonials {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

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

.feature-card,
.step,
.use-case,
.testimonial {
    animation: fadeInUp 0.6s ease-out;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-2 {
    margin-top: 2rem;
}

.mb-2 {
    margin-bottom: 2rem;
}