/* ===== CSS Variables ===== */
:root {
    --primary-color: #00d9ff;
    --secondary-color: #0099ff;
    --dark-bg: #0a0e27;
    --darker-bg: #070b1f;
    --light-text: #ffffff;
    --gray-text: #a0aec0;
    --gradient-primary: linear-gradient(135deg, #00d9ff 0%, #0099ff 100%);
    --gradient-secondary: linear-gradient(135deg, #1a1e3e 0%, #0a0e27 100%);
    --transition-speed: 0.3s;
    --border-radius: 12px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --box-shadow-hover: 0 15px 40px rgba(0, 217, 255, 0.2);
}

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

section {
    padding: 80px 0;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: 1rem;
    color: var(--gray-text);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    z-index: 1000;
    transition: all var(--transition-speed);
}

.navbar.scrolled {
    background: rgba(10, 14, 39, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.logo h1 {
    font-size: 1.5rem;
    margin: 0;
    color: var(--light-text);
}

.ai-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-speed);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.btn-demo {
    background: var(--gradient-primary);
    color: var(--light-text);
    padding: 0.6rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-speed);
}

.btn-demo:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 217, 255, 0.4);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--light-text);
    margin: 3px 0;
    transition: all var(--transition-speed);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(0, 217, 255, 0.1) 0%, transparent 50%),
                radial-gradient(ellipse at bottom, rgba(0, 153, 255, 0.1) 0%, transparent 50%);
    z-index: 0;
}

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

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease-out;
}

.gradient-text {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 0.5rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--gray-text);
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 3rem 0;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-text);
    margin-top: 0.5rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-speed);
    display: inline-block;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 217, 255, 0.4);
}

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

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 15px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

/* ===== Section Styles ===== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-text);
}

/* ===== Problem Section ===== */
.problem-section {
    background: var(--darker-bg);
}

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

.problem-card {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: all var(--transition-speed);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.problem-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
    border-color: var(--primary-color);
}

.problem-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.problem-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

/* ===== Solution Section ===== */
.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.tech-stack {
    background: var(--darker-bg);
    padding: 3rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.tech-layer {
    background: var(--dark-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(0, 217, 255, 0.3);
    transition: all var(--transition-speed);
}

.tech-layer:hover {
    background: rgba(0, 217, 255, 0.05);
    border-color: var(--primary-color);
    transform: translateX(10px);
}

.tech-layer i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.tech-arrow {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin: 1rem 0;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.feature-icon {
    background: var(--gradient-primary);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--light-text);
}

.feature-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

/* ===== Technology Section ===== */
.technology-section {
    background: var(--darker-bg);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.tech-card {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: all var(--transition-speed);
}

.tech-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.tech-card h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.tech-card h3 i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.validation-section {
    background: var(--dark-bg);
    padding: 3rem;
    border-radius: var(--border-radius);
    border: 2px solid rgba(0, 217, 255, 0.2);
}

.validation-title {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.validation-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.validation-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.validation-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* ===== Industries Section ===== */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.industry-card {
    background: var(--darker-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: all var(--transition-speed);
}

.industry-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--box-shadow-hover);
}

.industry-icon {
    background: var(--gradient-primary);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.industry-icon i {
    font-size: 2.5rem;
    color: var(--light-text);
}

.industry-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.industry-benefits {
    list-style: none;
    margin-top: 1.5rem;
}

.industry-benefits li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray-text);
}

.industry-benefits li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* ===== Competitive Section ===== */
.competitive-section {
    background: var(--darker-bg);
}

.comparison-table {
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--dark-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 1.5rem;
    text-align: left;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

.comparison-table th {
    background: rgba(0, 217, 255, 0.1);
    font-weight: 600;
}

.comparison-table tr:hover {
    background: rgba(0, 217, 255, 0.05);
}

.znet-row {
    background: rgba(0, 217, 255, 0.1);
}

.advantage {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== Team Section ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.team-card {
    background: var(--darker-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: all var(--transition-speed);
}

.team-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--box-shadow-hover);
}

.team-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.team-avatar i {
    font-size: 3rem;
    color: var(--light-text);
}

.team-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.team-bio {
    color: var(--gray-text);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.team-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.team-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 217, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: all var(--transition-speed);
}

.team-links a:hover {
    background: var(--primary-color);
    color: var(--light-text);
    transform: translateY(-3px);
}

.advisors {
    text-align: center;
}

.advisors h3 {
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.advisor-logos {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.advisor-item {
    background: var(--darker-bg);
    padding: 1rem 2rem;
    border-radius: 25px;
    border: 1px solid rgba(0, 217, 255, 0.2);
    color: var(--gray-text);
}

/* ===== Demo Section ===== */
.demo-section {
    background: var(--darker-bg);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.demo-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.demo-benefits {
    margin-top: 2rem;
}

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

.benefit-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.demo-form {
    background: var(--dark-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.2);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid rgba(0, 217, 255, 0.2);
    background: var(--darker-bg);
    color: var(--light-text);
    font-family: inherit;
    transition: all var(--transition-speed);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.btn-full {
    width: 100%;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    display: none;
}

.form-message.success {
    background: rgba(0, 255, 100, 0.1);
    border: 1px solid rgba(0, 255, 100, 0.3);
    color: #00ff64;
}

.form-message.error {
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    color: #ff6464;
}

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

.contact-info h3 {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(0, 217, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: all var(--transition-speed);
}

.social-links a:hover {
    background: var(--primary-color);
    color: var(--light-text);
    transform: translateY(-3px);
}

.contact-cta {
    background: var(--darker-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.contact-cta h3 {
    margin-bottom: 1rem;
}

.contact-cta p {
    margin-bottom: 2rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--darker-bg);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(0, 217, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

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

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

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 217, 255, 0.1);
    color: var(--gray-text);
}

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

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

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(10, 14, 39, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.5);
        padding: 2rem 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        padding: 1rem 0;
    }

    .hamburger {
        display: flex;
    }

    .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);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .solution-content,
    .demo-content,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .comparison-table {
        font-size: 0.9rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 1rem;
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .problem-grid,
    .tech-grid,
    .industries-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }
}