:root {
    --primary-blue: #4f46e5;
    --primary-purple: #7c3aed;
    --secondary-blue: #6366f1;
    --accent-cyan: #06b6d4;
    --accent-amber: #f59e0b;
    --dark: #1e1b4b;
    --light: #ffffff;
    --background: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-900: #111827;
    /* Legacy compatibility */
    --primary: #4f46e5;
    --secondary: #7c3aed;
    --accent: #6366f1;
    --gray: #4b5563;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: var(--background);
}

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

header {
    background: var(--light);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 1rem 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 10px;
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary);
}

.logo img {
    height: 40px;
    width: auto;
    display: block;
}

.logo-text {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary);
    display: inline;
}

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

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary);
}

/* Hamburger menu styles */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    background: none;
    border: none;
    outline: none;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Mobile navigation overlay */
.nav-menu.mobile-active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--light);
    z-index: 1000;
    padding-top: 80px;
    justify-content: flex-start;
    align-items: center;
    gap: 2rem;
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
}

.nav-menu.mobile-active.show {
    transform: translateX(0);
}

.nav-menu.mobile-active a {
    font-size: 1.5rem;
    padding: 10px;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.nav-menu.mobile-active a:hover {
    border-bottom-color: var(--primary);
}

@media (max-width: 768px) {
    .hamburger {
        display: flex !important;
    }

    .nav-menu:not(.mobile-active) {
        display: none !important;
    }
}

@media (min-width: 769px) {
    .hamburger {
        display: none !important;
    }

    .nav-menu {
        display: flex !important;
        position: static !important;
        flex-direction: row !important;
        background: transparent !important;
        height: auto !important;
        padding-top: 0 !important;
        transform: none !important;
        width: auto !important;
    }

    .nav-menu a {
        font-size: 1rem !important;
        padding: 0 !important;
        border-bottom: none !important;
    }
}

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--light);
    padding: 100px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-description {
    font-size: 18px;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: var(--light);
    color: var(--primary);
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--accent);
    color: var(--light);
    transform: translateY(-2px);
}

.features {
    padding: 80px 20px;
    background: var(--light);
}

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

.feature-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

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

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

.vision {
    padding: 80px 20px;
    background: var(--background);
    text-align: center;
}

.vision h2 {
    color: var(--primary);
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.vision p {
    font-size: 1.2rem;
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
}

.use-case-preview {
    padding: 80px 20px;
    background: var(--light);
}

.use-case-preview h2 {
    color: var(--primary);
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.use-case-preview > .container > p {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.use-case-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-5px);
}

.use-case-card h4 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.use-case-card p {
    line-height: 1.6;
}

/* Diagram container for Mermaid diagrams */
.diagram-container {
    background: var(--light);
    border-radius: 12px;
    padding: 30px;
    margin: 40px auto;
    max-width: 900px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.diagram-container h3 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 25px;
    font-size: 24px;
}

.diagram-container pre {
    background: transparent;
    border: none;
    text-align: center;
}

/* Content sections for updated pages */
.content-section {
    padding: 80px 20px;
}

.content-section:nth-child(even) {
    background: var(--light);
}

.content-section h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary);
}

.content-section h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--secondary);
}

.content-section p {
    font-size: 18px;
    margin-bottom: 20px;
    line-height: 1.8;
}

/* Feature icon styling */
.feature-icon {
    width: 80px;
    height: 80px;
    background: rgba(79, 70, 229, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
}

footer {
    background: var(--primary);
    color: var(--light);
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

footer p {
    margin: 0.5rem 0;
}

footer p:first-child {
    font-weight: 600;
}

footer p:last-child {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Contact page specific styles */
.contact-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--light);
    padding: 80px 20px;
    text-align: center;
}

.contact-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-hero p {
    font-size: 1.3rem;
}

.contact-content {
    padding: 80px 20px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h2 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.contact-info > p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-method {
    padding: 1.5rem;
    background: var(--background);
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.contact-method h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.contact-form {
    background: var(--light);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.contact-form h3 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.submit-button {
    background: var(--primary);
    color: var(--light);
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 100%;
}

.submit-button:hover {
    background: var(--secondary);
}

/* FAQ page specific styles */
.faq-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--light);
    padding: 80px 20px;
    text-align: center;
}

.faq-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.faq-hero p {
    font-size: 1.3rem;
}

.faq-content {
    padding: 80px 20px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: var(--light);
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: var(--background);
}

.faq-question.active {
    background: var(--background);
    color: var(--primary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
    transition: transform 0.3s ease;
}

.faq-question.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem;
    background: var(--background);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer.active {
    max-height: 300px;
    padding: 1.5rem;
}

.faq-answer p {
    line-height: 1.6;
    margin: 0;
}

/* Coming Soon page styles */
.coming-soon-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--light);
    padding: 120px 20px;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.coming-soon-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.coming-soon-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.coming-soon-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 400;
    opacity: 0.9;
}

.coming-soon-content > p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    line-height: 1.6;
}

.coming-soon-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-preview {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-preview h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--light);
}

.feature-preview p {
    font-size: 1rem;
    line-height: 1.5;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .hero-description {
        font-size: 16px;
    }

    .vision h2, .use-case-preview h2 {
        font-size: 2rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-hero h1 {
        font-size: 2rem;
    }

    .faq-hero h1 {
        font-size: 2rem;
    }

    .faq-question {
        font-size: 1rem;
        padding: 1rem;
    }

    .coming-soon-content h1 {
        font-size: 2.5rem;
    }

    .coming-soon-content h2 {
        font-size: 1.8rem;
    }

    .coming-soon-content > p {
        font-size: 1.1rem;
    }

    .coming-soon-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}