/* CSS Variables for consistent theming */
:root {
    --bg-dark: #0a0a0a;
    --accent-purple: #ad72ff;
    --accent-cyan: #00e5ff;
    --text-white: #ffffff;
    --text-gray: #b0b0b0;
    --card-bg: rgba(255, 255, 255, 0.05);
    --transition: all 0.3s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

/* Navigation Styles */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 2px 20px rgba(173, 114, 255, 0.1);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: var(--accent-purple);
}

/* Dropdown Styles */
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    border-radius: 8px;
    border: 1px solid rgba(173, 114, 255, 0.2);
    margin-top: 0.5rem;
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
}

.dropdown-link:hover {
    background: rgba(173, 114, 255, 0.1);
    color: var(--accent-purple);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-white);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(10, 10, 10, 0.6), rgba(10, 10, 10, 0.6)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><rect fill="%23151515" width="1200" height="800"/><circle fill="%23ad72ff" opacity="0.1" cx="200" cy="200" r="150"/><circle fill="%2300e5ff" opacity="0.1" cx="1000" cy="600" r="200"/></svg>');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
}

.hero-content .tagline {
    font-size: 1.5rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.7s forwards;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    opacity: 0;
    animation: fadeInUp 1s ease 0.9s forwards;
    margin: 0.5rem;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(173, 114, 255, 0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--accent-purple);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

/* Section Styles */
.section {
    padding: 5rem 0;
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--accent-purple);
}

.section-subtitle {
    font-size: 1.2rem;
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.about-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(173, 114, 255, 0.2);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-purple);
    box-shadow: 0 15px 40px rgba(173, 114, 255, 0.1);
}

.about-card h3 {
    color: var(--accent-purple);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

/* Services Section */
.services {
    background: linear-gradient(135deg, rgba(173, 114, 255, 0.05), rgba(0, 229, 255, 0.05));
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.service-card:hover {
    transform: translateY(-10px);
    background: rgba(173, 114, 255, 0.1);
    border-color: var(--accent-purple);
    box-shadow: 0 20px 50px rgba(173, 114, 255, 0.2);
}

.service-icon {
    font-size: 3rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.service-card h3 {
    color: var(--accent-purple);
    margin-bottom: 1rem;
}

/* AI Evolution Chart */
.ai-evolution {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    margin: 3rem 0;
    border: 1px solid rgba(173, 114, 255, 0.2);
}

.ai-timeline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.ai-stage {
    text-align: center;
    flex: 1;
    min-width: 200px;
}

.ai-stage-icon {
    font-size: 3rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.ai-arrow {
    font-size: 2rem;
    color: var(--accent-purple);
    margin: 0 1rem;
}

/* Partners Section */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    align-items: center;
}

.partner-logo {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
    height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.partner-logo:hover {
    transform: scale(1.05);
    background: rgba(0, 229, 255, 0.1);
    border-color: var(--accent-cyan);
}

.partner-logo img {
    max-width: 120px;
    max-height: 60px;
    object-fit: contain;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.partner-logo h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.partner-logo p {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* Investors Section */
.investors {
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.05), rgba(173, 114, 255, 0.05));
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.project-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(173, 114, 255, 0.2);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: 0 15px 40px rgba(0, 229, 255, 0.1);
}

.project-card h4 {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-form {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(173, 114, 255, 0.2);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: var(--text-white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-purple);
    background: rgba(173, 114, 255, 0.1);
}

.contact-info h3 {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.contact-item i {
    color: var(--accent-purple);
    margin-right: 1rem;
    width: 20px;
}

.map-container {
    margin-top: 2rem;
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(173, 114, 255, 0.2);
}

/* Footer */
.footer {
    background: #000;
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(173, 114, 255, 0.2);
}

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

.footer-section h3 {
    color: var(--accent-purple);
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

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

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

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icons a {
    color: var(--text-gray);
    font-size: 1.5rem;
    transition: var(--transition);
}

.social-icons a:hover {
    color: var(--accent-purple);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-gray);
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* Mobile Responsive Styles */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-top: 1px solid rgba(173, 114, 255, 0.2);
}

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

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

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

    .hero-content .tagline {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .nav-container {
        padding: 0 1rem;
    }

    .container {
        padding: 0 1rem;
    }

    .ai-timeline {
        flex-direction: column;
        gap: 1rem;
    }

    .ai-arrow {
        transform: rotate(90deg);
    }

    .nav-item {
        margin: 0.5rem 0;
    }

    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: transparent;
        border: none;
        margin: 0;
        padding-left: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .section {
        padding: 3rem 0;
    }

    .about-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
}