:root {
    --glass-bg: #e0e5ec;
    --glass-card: rgba(255, 255, 255, 0.4);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-text: #333;
    --glass-primary: #4a90e2;
    --glass-shadow: 10px 10px 20px #b8bec5, -10px -10px 20px #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--glass-bg); color: var(--glass-text);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.8) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.8) 0%, transparent 20%);
    background-attachment: fixed;
}
a { text-decoration: none; color: inherit; }

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

/* Header */
.glass-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 40px; margin-bottom: 50px; border-radius: 20px;
    background: var(--glass-card); backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow);
}
.glass-brand { font-size: 26px; font-weight: 800; color: var(--glass-primary); letter-spacing: 1px;}
.glass-nav { display: flex; gap: 30px; }
.glass-nav a {
    font-size: 15px; font-weight: 600; color: var(--glass-text);
    padding: 8px 15px; border-radius: 10px; transition: all 0.3s;
}
.glass-nav a:hover, .glass-nav a.active {
    background: rgba(255, 255, 255, 0.6); box-shadow: inset 2px 2px 5px #b8bec5, inset -2px -2px 5px #ffffff;
    color: var(--glass-primary);
}

/* Hero */
.glass-hero {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 80px; padding: 60px; border-radius: 30px;
    background: var(--glass-card); backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow);
}
.gh-content { flex: 1; padding-right: 50px;}
.gh-content h1 { font-size: 48px; margin-bottom: 20px; color: #222; line-height: 1.2;}
.gh-content p { font-size: 18px; margin-bottom: 40px; color: #555;}
.gh-visual { flex: 1; display: flex; justify-content: center; align-items: center;}
.glass-sphere {
    width: 250px; height: 250px; border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.8), rgba(255,255,255,0.1));
    box-shadow: 15px 15px 30px #b8bec5, -15px -15px 30px #ffffff, inset 10px 10px 20px rgba(255,255,255,0.5);
    backdrop-filter: blur(5px); border: 1px solid rgba(255,255,255,0.6);
    animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }

.btn-glass {
    display: inline-block; padding: 15px 35px; font-size: 16px; font-weight: bold;
    color: #fff; background: var(--glass-primary); border-radius: 15px;
    transition: all 0.3s; box-shadow: 5px 5px 15px rgba(74, 144, 226, 0.4), -5px -5px 15px #ffffff;
    border: none; margin-right: 20px;
}
.btn-glass:hover { transform: translateY(-2px); box-shadow: 8px 8px 20px rgba(74, 144, 226, 0.5), -8px -8px 20px #ffffff;}
.btn-glass-alt {
    display: inline-block; padding: 15px 35px; font-size: 16px; font-weight: bold;
    color: var(--glass-primary); background: transparent; border-radius: 15px;
    transition: all 0.3s; border: 2px solid var(--glass-primary);
}
.btn-glass-alt:hover { background: rgba(74, 144, 226, 0.1); }

/* Stats */
.glass-stats { display: flex; justify-content: space-around; margin-bottom: 80px; gap: 30px;}
.gs-item {
    flex: 1; text-align: center; padding: 30px; border-radius: 20px;
    background: var(--glass-card); backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow);
}
.gs-val { font-size: 40px; font-weight: 800; color: var(--glass-primary); margin-bottom: 5px;}
.gs-lbl { font-size: 14px; color: #666; font-weight: 600;}

/* Features */
.glass-features { margin-bottom: 80px;}
.glass-features h2 { text-align: center; font-size: 32px; margin-bottom: 50px; color: #222;}
.gf-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px;}
.gf-card {
    padding: 40px; border-radius: 25px; background: var(--glass-card); backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow); transition: all 0.3s;
}
.gf-card:hover { transform: translateY(-5px); }
.gf-card h3 { font-size: 22px; margin-bottom: 15px; color: var(--glass-primary);}
.gf-card p { font-size: 15px; color: #555;}

/* Nodes */
.glass-nodes {
    margin-bottom: 80px; padding: 50px; border-radius: 30px;
    background: var(--glass-card); backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow);
}
.glass-nodes h2 { font-size: 28px; margin-bottom: 30px; color: #222;}
.gn-list { display: flex; flex-wrap: wrap; gap: 20px;}
.gn-item {
    padding: 12px 25px; border-radius: 50px; background: rgba(255,255,255,0.6);
    font-size: 14px; font-weight: 600; color: #444; border: 1px solid #fff;
    box-shadow: inset 2px 2px 5px #fff, inset -2px -2px 5px rgba(0,0,0,0.05);
}

/* FAQ */
.glass-faq { margin-bottom: 80px;}
.glass-faq h2 { font-size: 28px; margin-bottom: 40px; color: #222; text-align: center;}
.g-faq-item {
    margin-bottom: 25px; padding: 30px; border-radius: 20px;
    background: var(--glass-card); backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow);
}
.g-fq { font-size: 18px; font-weight: bold; color: var(--glass-primary); margin-bottom: 10px;}
.g-fa { font-size: 15px; color: #555;}

footer { text-align: center; padding: 40px 0; color: #888; font-size: 14px;}

@media (max-width: 900px) {
    .glass-header { flex-direction: column; gap: 20px; padding: 20px;}
    .glass-hero { flex-direction: column; text-align: center; padding: 40px 20px;}
    .gh-content { padding-right: 0; margin-bottom: 40px;}
    .glass-stats { flex-direction: column; }
    .gf-grid { grid-template-columns: 1fr; }
    .btn-glass, .btn-glass-alt { display: block; margin: 10px auto; width: 80%;}
}