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

:root {
    --primary: #1a2332;
    --secondary: #0f7ba8;
    --accent: #00d4ff;
    --light: #f5f7fa;
    --border: #e0e8f0;
    --text: #2c3e50;
    --text-light: #6b7a8c;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: white;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: white;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-weight: 700;
    font-size: 20px;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.cta-button {
    background: var(--secondary);
    color: white;
    padding: 10px 24px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}

.cta-button:hover {
    background: #0a5a80;
}

.cta-button-large {
    background: var(--secondary);
    color: white;
    padding: 14px 32px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
    display: inline-block;
}

.cta-button-large:hover {
    background: #0a5a80;
}

@media (max-width: 768px) {
    .navbar {
        padding: 16px 24px;
    }

    .nav-links {
        gap: 20px;
    }

    .nav-links a {
        font-size: 13px;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #243a52 100%);
    color: white;
    padding: 80px 40px;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 20px;
    color: #c0d0e0;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-secondary {
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 12px 28px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.hero-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .hero {
        padding: 60px 24px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }
}

/* Sections */
.section {
    padding: 80px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 50px;
    color: var(--primary);
    text-align: center;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.problem-card {
    background: var(--light);
    padding: 40px;
    border-radius: 8px;
    border-left: 4px solid var(--accent);
}

.problem-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--primary);
}

.problem-card p {
    color: var(--text-light);
    font-size: 15px;
}

/* Solution Section */
.solution {
    background: var(--light);
}

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

.solution-content h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary);
    font-weight: 700;
}

.solution-content p {
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.solution-content ul {
    list-style: none;
    margin-top: 24px;
}

.solution-content li {
    padding: 10px 0;
    color: var(--text);
    display: flex;
    align-items: center;
}

.solution-content li:before {
    content: "✓";
    color: var(--secondary);
    font-weight: 700;
    margin-right: 12px;
    font-size: 18px;
}

.chatbot-demo {
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

.chat-message {
    margin-bottom: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    max-width: 85%;
}

.chat-user {
    background: var(--secondary);
    color: white;
    align-self: flex-end;
}

.chat-bot {
    background: var(--light);
    color: var(--text);
    align-self: flex-start;
}

@media (max-width: 768px) {
    .solution-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section {
        padding: 60px 24px;
    }

    .section-title {
        font-size: 28px;
    }
}

/* How It Works */
.how-it-works {
    background: white;
}

.timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.timeline-item {
    position: relative;
    padding-left: 50px;
}

.timeline-item:before {
    content: attr(data-number);
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    background: var(--secondary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.timeline-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary);
    font-weight: 700;
}

.timeline-item p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
}

/* Results Section */
.results {
    background: linear-gradient(135deg, var(--primary) 0%, #243a52 100%);
    color: white;
}

.results .section-title {
    color: white;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.result-stat {
    text-align: center;
}

.result-stat .number {
    font-size: 42px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
}

.result-stat p {
    font-size: 16px;
    color: #c0d0e0;
}

.result-testimonial {
    margin-top: 50px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    border-left: 4px solid var(--accent);
}

.result-testimonial p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 16px;
}

.result-testimonial .author {
    font-size: 14px;
    color: #a0b0c0;
}

/* CTA Section */
.final-cta {
    background: linear-gradient(135deg, var(--secondary) 0%, #0a5a80 100%);
    color: white;
    text-align: center;
    padding: 80px 40px;
}

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

.final-cta p {
    font-size: 18px;
    margin-bottom: 40px;
    color: #c0d0e0;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-item a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    transition: color 0.2s;
}

.contact-item a:hover {
    color: var(--accent);
}

.contact-label {
    font-size: 12px;
    color: #a0b0c0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Footer */
footer {
    background: var(--primary);
    color: #a0b0c0;
    text-align: center;
    padding: 40px 20px;
    font-size: 14px;
}

/* Blog Styles */
.blog-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 40px;
}

.blog-header {
    text-align: center;
    margin-bottom: 60px;
}

.blog-header h1 {
    font-size: 42px;
    margin-bottom: 16px;
    color: var(--primary);
}

.blog-header p {
    font-size: 18px;
    color: var(--text-light);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.blog-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    box-shadow: 0 10px 30px rgba(15, 123, 168, 0.1);
    border-color: var(--secondary);
}

.blog-card-header {
    background: var(--light);
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.blog-card-tag {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.blog-card h3 {
    font-size: 20px;
    color: var(--primary);
    font-weight: 700;
}

.blog-card-content {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-excerpt {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.blog-card-meta {
    font-size: 13px;
    color: var(--text-light);
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.blog-card-link {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
    display: inline-block;
    margin-top: 8px;
}

.blog-card-link:hover {
    color: #0a5a80;
}

/* Article Page */
.article-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 40px;
}

.article-header {
    margin-bottom: 40px;
}

.article-header h1 {
    font-size: 42px;
    color: var(--primary);
    margin-bottom: 16px;
}

.article-meta {
    font-size: 14px;
    color: var(--text-light);
}

.article-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text);
}

.article-content h2 {
    font-size: 28px;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--primary);
}

.article-content h3 {
    font-size: 22px;
    margin-top: 30px;
    margin-bottom: 16px;
    color: var(--primary);
}

.article-content p {
    margin-bottom: 20px;
}

.article-content ul,
.article-content ol {
    margin-left: 20px;
    margin-bottom: 20px;
}

.article-content li {
    margin-bottom: 10px;
}

.article-content strong {
    font-weight: 600;
    color: var(--primary);
}

.back-link {
    display: inline-block;
    color: var(--secondary);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 40px;
    transition: color 0.2s;
}

.back-link:hover {
    color: #0a5a80;
}

@media (max-width: 768px) {
    .final-cta h2 {
        font-size: 28px;
    }

    .contact-info {
        gap: 20px;
    }

    .blog-container {
        padding: 40px 24px;
    }

    .article-container {
        padding: 40px 24px;
    }

    .article-header h1 {
        font-size: 32px;
    }
}