:root {
    --space-bg: #050510;
    --space-panel: #0a0a1a;
    --star-white: #ffffff;
    --star-blue: #4d94ff;
    --star-purple: #9d4edd;
    --text-dim: #8b9bb4;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--space-bg);
    color: var(--star-white);
    font-family: 'Space Grotesk', -apple-system, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Starry BG generated via radial gradients */
body::before {
    content: ''; position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background-image: 
        radial-gradient(1px 1px at 20px 30px, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 40px 70px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 50px 160px, #ddd, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 90px 40px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 130px 80px, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 160px 120px, #ddd, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 200px 200px;
    z-index: -2; opacity: 0.5;
}

/* Galaxy swirl effect */
body::after {
    content: ''; position: fixed; top: -50%; left: -50%; width: 200%; height: 200%;
    background: conic-gradient(from 0deg at 50% 50%, transparent 0deg, rgba(77, 148, 255, 0.05) 120deg, transparent 240deg);
    z-index: -1; pointer-events: none;
}

a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 5%; }

/* Nav - Side panel for desktop, top for mobile */
.nav {
    position: fixed; top: 0; left: 0; width: 250px; height: 100vh;
    background: rgba(10, 10, 26, 0.8); backdrop-filter: blur(10px);
    border-right: 1px solid rgba(255,255,255,0.05);
    padding: 40px 0; display: flex; flex-direction: column; align-items: center; z-index: 100;
}
.brand { font-size: 24px; font-weight: bold; margin-bottom: 50px; text-align: center;}
.brand span { display: block; font-size: 12px; color: var(--star-blue); letter-spacing: 2px;}
.menu { display: flex; flex-direction: column; width: 100%; }
.menu a { padding: 15px 30px; color: var(--text-dim); border-left: 3px solid transparent; transition: 0.3s;}
.menu a:hover { color: var(--star-white); border-left-color: var(--star-purple); background: rgba(255,255,255,0.02);}
.dl-btn { margin-top: auto; background: linear-gradient(90deg, var(--star-blue), var(--star-purple)); padding: 12px 30px; border-radius: 30px; font-weight: bold; font-size: 14px;}

/* Main Layout shifts right */
.main-content { margin-left: 250px; padding: 60px 0 100px; }

/* Hero */
.hero { display: flex; flex-direction: column; align-items: flex-start; margin-bottom: 80px;}
.hero h1 { font-size: 64px; line-height: 1.1; margin-bottom: 20px; font-weight: 300;}
.hero h1 strong { font-weight: 700; background: linear-gradient(90deg, var(--star-white), var(--star-blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent;}
.hero p { font-size: 18px; color: var(--text-dim); max-width: 600px; margin-bottom: 40px;}
.h-acts { display: flex; gap: 20px; }
.btn-o { border: 1px solid rgba(255,255,255,0.3); padding: 12px 30px; border-radius: 30px; transition: 0.3s; }
.btn-o:hover { border-color: var(--star-blue); background: rgba(77, 148, 255, 0.1); }

/* Features as a floating constellation grid */
.feat-constellation { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-bottom: 80px; position: relative;}
/* Draw connecting lines behind */
.feat-constellation::before {
    content: ''; position: absolute; top: 50%; left: 10%; right: 10%; height: 1px; background: rgba(255,255,255,0.1); z-index: -1;
}
.fc-card { background: var(--space-panel); border: 1px solid rgba(255,255,255,0.05); padding: 40px 30px; border-radius: 50%; width: 250px; height: 250px; display: flex; flex-direction: column; justify-content: center; text-align: center; margin: 0 auto; box-shadow: 0 0 30px rgba(0,0,0,0.5); transition: 0.3s;}
.fc-card:nth-child(2) { transform: translateY(40px); }
.fc-card:hover { border-color: var(--star-blue); box-shadow: 0 0 30px rgba(77, 148, 255, 0.2);}
.fc-card h3 { font-size: 18px; margin-bottom: 10px; color: var(--star-blue);}
.fc-card p { font-size: 13px; color: var(--text-dim); }

/* Stats & Trust Row */
.data-strip { display: flex; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; padding: 40px; justify-content: space-between; margin-bottom: 80px; flex-wrap: wrap; gap: 30px;}
.dt-block { text-align: center; flex: 1; min-width: 150px; }
.dt-block b { display: block; font-size: 32px; font-weight: 300; margin-bottom: 5px;}
.dt-block span { font-size: 11px; text-transform: uppercase; color: var(--text-dim); letter-spacing: 1px;}
.trust-strip { width: 100%; display: flex; justify-content: space-around; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 20px; margin-top: 10px; font-size: 13px; color: var(--star-purple);}

/* Nodes */
.nodes-area h2 { font-size: 24px; font-weight: 300; margin-bottom: 30px; }
.n-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 15px; margin-bottom: 80px; }
.n-bx { background: rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.1); padding: 20px 10px; text-align: center; border-radius: 8px;}
.n-bx h4 { font-size: 16px; margin-bottom: 5px; }
.n-bx span { font-size: 12px; color: var(--text-dim); }

/* Reviews and FAQ Layout */
.bottom-info { display: flex; gap: 60px; margin-bottom: 60px; }
.b-col { flex: 1; }
.b-title { font-size: 20px; font-weight: 300; margin-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 10px;}

.r-item { margin-bottom: 25px; }
.r-item .s { color: var(--star-blue); margin-bottom: 5px; font-size: 12px;}
.r-item p { font-size: 14px; color: var(--text-dim); margin-bottom: 5px; font-style: italic;}
.r-item b { font-size: 12px; color: #666; }

.q-item { margin-bottom: 15px; }
.q-title { font-size: 15px; cursor: pointer; color: var(--star-white); display: flex; justify-content: space-between; }
.q-title:hover { color: var(--star-purple); }
.q-ans { font-size: 13px; color: var(--text-dim); margin-top: 10px; display: none; line-height: 1.6;}

footer { text-align: center; padding: 30px 0; border-top: 1px solid rgba(255,255,255,0.05); font-size: 12px; color: var(--text-dim); margin-top: 40px;}

@media (max-width: 900px) {
    .nav { position: static; width: 100%; height: auto; padding: 20px; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.05); flex-direction: row; justify-content: space-between;}
    .brand { margin-bottom: 0; text-align: left; }
    .menu, .dl-btn { display: none; }
    .main-content { margin-left: 0; padding: 40px 5%; text-align: center; }
    .hero { align-items: center; }
    .feat-constellation { grid-template-columns: 1fr; gap: 40px; }
    .feat-constellation::before { display: none; }
    .fc-card:nth-child(2) { transform: none; }
    .n-grid { grid-template-columns: 1fr 1fr; }
    .bottom-info { flex-direction: column; }
}