/* CSS Variables for Easy Customization */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #a855f7;
    --background: #0a0e1a;
    --card-bg: #141b2e;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --border-color: #1e293b;
    --section-dark-bg: #0d1117;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s ease;
}

nav.scrolled {
    background: rgba(10, 14, 26, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 65px;
    width: auto;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
    font-size: 0.95rem;
}

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

.cta-button {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--background);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.cta-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 50% 0%, rgba(0, 212, 255, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(168, 85, 247, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 0;
}

.hero-content {
    max-width: 1200px;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero .description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    position: relative;
}

.scroll-arrow::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: scroll-hint 2s ease-in-out infinite;
}

/* Section Styles */
.section {
    padding: 6rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
}

.section-dark {
    background: var(--section-dark-bg);
    max-width: 100%;
    padding: 6rem 2rem;
}

.section-dark .section-header,
.section-dark .cards-grid,
.section-dark .demos-grid {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}

.section-cta {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 4rem 2rem;
    text-align: center;
}

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

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

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

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 1rem;
    padding: 1px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.3), transparent 50%, rgba(168, 85, 247, 0.2));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.card:hover::before {
    opacity: 1;
}

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

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

.card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Demos Grid */
.demos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.demo-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.demo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 1rem;
    padding: 1px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.4), transparent 50%, rgba(168, 85, 247, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s;
}

.demo-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 25px 50px rgba(0, 212, 255, 0.15);
}

.demo-card:hover::before {
    opacity: 1;
}

.demo-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.demo-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.4;
}

.demo-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.demo-stats {
    display: flex;
    gap: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat strong {
    color: var(--primary-color);
    font-size: 1.25rem;
    font-weight: 700;
}

.stat small {
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Features List */
.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50%;
}

.feature-content h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* CTA Section */
.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

/* Footer */
footer {
    background: #0a0e19;
    padding: 2rem 2rem;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-logo-img {
    height: 50px;
    width: auto;
}

footer p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9rem;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes scroll-hint {
    0%, 100% { 
        transform: translate(-50%, 0);
        opacity: 0.6;
    }
    50% { 
        transform: translate(-50%, 8px);
        opacity: 1;
    }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* Fade In Animations */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease-in forwards;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .subtitle {
        font-size: 1.25rem;
    }
    
    .hero .description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 14, 26, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .cards-grid,
    .demos-grid {
        grid-template-columns: 1fr;
    }
    
    .features-list {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 4rem 1.5rem;
    }
    
    .demo-stats {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .cta-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .logo img {
        height: 40px;
    }
}