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

html {
    overflow-x: hidden;
    width: 100%;
}

:root {
    --space-dark: #0a0e27;
    --space-deep: #151a35;
    --star-glow: #6366f1;
    --star-accent: #8b5cf6;
    --star-light: #c4b5fd;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --gradient-start: #6366f1;
    --gradient-end: #8b5cf6;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--space-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    width: 100%;
    min-height: 100vh;
}

body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100vh;
}

/* Animated stars background */
.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: white;
    border-radius: 50%;
    animation: twinkle 3s infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 0 6px rgba(139, 92, 246, 0.4));
}

.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;
}

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

.cta-button {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border: none;
    border-radius: 50px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.3s;
    text-decoration: none;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 5% 4rem;
    z-index: 1;
}

.hero-content {
    max-width: 1200px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--text-primary), var(--star-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.secondary-button {
    padding: 0.75rem 1.5rem;
    background: rgba(99, 102, 241, 0.1);
    border: 2px solid var(--star-glow);
    border-radius: 50px;
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.secondary-button:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

/* Orbit visualization */
.orbit-demo {
    position: relative;
    width: 100%;
    max-width: 600px;
    aspect-ratio: 1;
    margin: 5rem auto 0rem;
}

.orbit-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.05); }
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbit-contact {
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--space-deep);
    border: 2px solid var(--star-glow);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

/* Features Section */
.features {
    padding: 3rem 5%;
    position: relative;
    z-index: 1;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(21, 26, 53, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--star-glow);
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.2);
}

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

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

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Philosophy Section */
.philosophy {
    padding: 3rem 5%;
    background: rgba(21, 26, 53, 0.4);
    position: relative;
    z-index: 1;
}

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

.philosophy h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 2rem;
}

.philosophy-quote {
    font-size: 1.3rem;
    font-style: italic;
    color: var(--star-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.philosophy-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.philosophy-point {
    padding: 1.5rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 15px;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.philosophy-point strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--star-light);
    font-size: 1.1rem;
}

/* CTA Section */
.final-cta {
    padding: 3rem 5%;
    text-align: center;
    position: relative;
    z-index: 1;
}

.final-cta h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
}

.final-cta p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.waitlist-form {
    max-width: 500px;
    margin: 2rem auto;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.waitlist-form input {
    flex: 1;
    min-width: 250px;
    padding: 1rem 1.5rem;
    background: rgba(21, 26, 53, 0.8);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 1rem;
}

.waitlist-form input::placeholder {
    color: var(--text-secondary);
}

.waitlist-form input:focus {
    outline: none;
    border-color: var(--star-glow);
}

/* Footer */
footer {
    padding: 3rem 5%;
    text-align: center;
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Mobile menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.3s, transform 0.2s;
}

.mobile-menu-close:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 300px;
    height: 100vh;
    background: rgba(15, 20, 45, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 5rem 2rem 2rem;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mobile-menu ul li a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 500;
    display: block;
    transition: color 0.3s, transform 0.3s;
}

.mobile-menu ul li a:hover {
    color: var(--star-accent);
    transform: translateX(8px);
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 999;
}

.mobile-menu-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

@media (max-width: 768px) {
    nav {
        padding: 0.875rem 4%;
    }

    .logo {
        font-size: 1.25rem;
    }

    .logo-icon {
        width: 24px;
        height: 24px;
    }

    .nav-links {
        display: none;
    }

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

    .hero {
        padding: 5rem 5% 3rem;
    }

    .orbit-demo {
        max-width: 350px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .waitlist-form {
        flex-direction: column;
        align-items: stretch;
    }

    .waitlist-form input {
        min-width: 100%;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 0.75rem 3%;
    }

    .logo {
        font-size: 1.125rem;
    }

    .logo-icon {
        width: 22px;
        height: 22px;
    }

    .cta-button {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
}