:root {
    --shield-bg: #fdfdfd;
    --shield-text: #333333;
    --shield-primary: #27ae60; /* Trust Green */
    --shield-secondary: #ffffff;
    --shield-accent: #f39c12; /* Warning Orange */
    --shield-border: #e0e0e0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--shield-bg); color: var(--shield-text);
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6; overflow-x: hidden;
}

.shield-container { max-width: 1000px; margin: 0 auto; padding: 0 30px;}

/* Header */
.shield-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 30px 0; margin-bottom: 50px; border-bottom: 2px solid var(--shield-primary);
}
.shield-brand {
    font-size: 26px; font-weight: 800; color: var(--shield-primary);
    display: flex; align-items: center; gap: 10px;
}
.shield-brand::before {
    content: '🛡️'; font-size: 26px;
}
.shield-nav { display: flex; gap: 30px; }
.shield-nav a {
    font-size: 15px; font-weight: bold; color: #666; text-decoration: none;
    transition: color 0.3s; padding-bottom: 5px;
}
.shield-nav a:hover, .shield-nav a.active { color: var(--shield-primary); border-bottom: 2px solid var(--shield-primary); }

/* Hero */
.shield-hero {
    text-align: center; margin-bottom: 80px; padding: 60px 20px;
    background: var(--shield-secondary); border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05); position: relative;
    border-top: 5px solid var(--shield-primary);
}
.shield-hero h1 {
    font-size: 38px; color: #222; margin-bottom: 20px; font-weight: 800;
}
.shield-hero p { font-size: 18px; color: #555; margin-bottom: 40px; max-width: 700px; margin-left: auto; margin-right: auto;}

.btn-shield {
    display: inline-block; padding: 15px 40px; font-size: 16px; font-weight: bold;
    color: #fff; background: var(--shield-primary); border-radius: 30px;
    transition: all 0.3s; margin: 0 10px; text-decoration: none;
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
}
.btn-shield:hover { background: #219653; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(39, 174, 96, 0.4);}
.btn-shield-alt {
    display: inline-block; padding: 15px 40px; font-size: 16px; font-weight: bold;
    color: var(--shield-primary); background: transparent; border: 2px solid var(--shield-primary);
    border-radius: 30px; transition: all 0.3s; margin: 0 10px; text-decoration: none;
}
.btn-shield-alt:hover { background: rgba(39, 174, 96, 0.1); }

/* Stats */
.shield-stats {
    display: flex; justify-content: center; gap: 40px; margin-bottom: 80px; flex-wrap: wrap;
}
.ss-item {
    background: var(--shield-secondary); padding: 25px 40px; border-radius: 8px;
    text-align: center; border: 1px solid var(--shield-border); min-width: 200px;
}
.ss-val { font-size: 36px; font-weight: 800; color: var(--shield-primary); margin-bottom: 5px;}
.ss-lbl { font-size: 14px; color: #777; font-weight: bold;}

/* Features */
.shield-features { margin-bottom: 80px;}
.shield-features h2 { font-size: 28px; text-align: center; margin-bottom: 40px; color: #222;}
.sf-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px;}
.sf-card {
    background: var(--shield-secondary); padding: 35px; border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.03); border-left: 4px solid var(--shield-primary);
}
.sf-card h3 { font-size: 20px; margin-bottom: 15px; color: #222;}
.sf-card p { font-size: 15px; color: #666;}

/* Nodes */
.shield-nodes { margin-bottom: 80px;}
.shield-nodes h2 { font-size: 28px; text-align: center; margin-bottom: 40px; color: #222;}
.sn-list { display: flex; flex-direction: column; gap: 15px; max-width: 700px; margin: 0 auto;}
.sn-item {
    background: var(--shield-secondary); padding: 15px 25px; border-radius: 8px;
    display: flex; justify-content: space-between; align-items: center;
    border: 1px solid var(--shield-border);
}
.sn-status { color: var(--shield-primary); font-weight: bold; font-size: 14px;}

/* FAQ */
.shield-faq { margin-bottom: 100px;}
.shield-faq h2 { font-size: 28px; text-align: center; margin-bottom: 40px; color: #222;}
.s-faq-item {
    background: var(--shield-secondary); padding: 30px; border-radius: 8px;
    margin-bottom: 20px; box-shadow: 0 5px 15px rgba(0,0,0,0.03);
}
.s-fq { font-size: 18px; font-weight: bold; margin-bottom: 10px; color: #222;}
.s-fa { font-size: 15px; color: #666;}

footer {
    text-align: center; padding: 30px 0; color: #999; font-size: 14px;
    border-top: 1px solid var(--shield-border);
}

@media (max-width: 768px) {
    .shield-header { flex-direction: column; gap: 20px; }
    .shield-nav { flex-wrap: wrap; justify-content: center;}
    .shield-hero h1 { font-size: 30px; }
    .sf-grid { grid-template-columns: 1fr; }
    .btn-shield, .btn-shield-alt { display: block; margin: 10px auto; width: 80%;}
}