:root {
    --dash-bg: #f5f7fa;
    --dash-text: #34495e;
    --dash-primary: #8e44ad; /* Deep Purple */
    --dash-secondary: #ffffff;
    --dash-accent: #2ecc71; /* Success Green */
    --dash-border: #dcdde1;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--dash-bg); color: var(--dash-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6; overflow-x: hidden;
}

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

/* Header */
.dash-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 0; margin-bottom: 40px; border-bottom: 1px solid var(--dash-border);
    background: var(--dash-secondary); position: sticky; top: 0; z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.dash-brand {
    font-size: 24px; font-weight: 700; color: var(--dash-primary);
    display: flex; align-items: center; gap: 10px; margin-left: 20px;
}
.dash-brand::before {
    content: '⚙️'; font-size: 24px;
}
.dash-nav { display: flex; gap: 30px; margin-right: 20px;}
.dash-nav a {
    font-size: 15px; font-weight: 500; color: #555; text-decoration: none;
    transition: color 0.3s;
}
.dash-nav a:hover, .dash-nav a.active { color: var(--dash-primary); }

/* Hero */
.dash-hero {
    display: flex; align-items: center; justify-content: space-between; gap: 50px;
    margin-bottom: 80px; padding: 60px 40px; background: var(--dash-secondary);
    border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.dh-content { flex: 1; }
.dh-content h1 {
    font-size: 42px; font-weight: 800; margin-bottom: 20px; color: #222;
    line-height: 1.2;
}
.dh-content p { font-size: 18px; color: #666; margin-bottom: 30px;}

.dh-visual {
    flex: 1; height: 300px; background: var(--dash-bg); border-radius: 8px;
    display: flex; justify-content: center; align-items: center;
    border: 2px dashed #ccc; position: relative; overflow: hidden;
}
.dh-visual::after {
    content: 'Dashboard UI Placeholder'; color: #999; font-weight: bold;
}

.btn-dash {
    display: inline-block; padding: 14px 32px; font-size: 16px; font-weight: 600;
    color: #fff; background: var(--dash-primary); border-radius: 6px;
    transition: all 0.3s; margin-right: 15px; text-decoration: none;
}
.btn-dash:hover { background: #732d91; transform: translateY(-2px); box-shadow: 0 5px 15px rgba(142, 68, 173, 0.3);}
.btn-dash-alt {
    display: inline-block; padding: 14px 32px; font-size: 16px; font-weight: 600;
    color: var(--dash-primary); background: transparent; border: 2px solid var(--dash-primary);
    border-radius: 6px; transition: all 0.3s; text-decoration: none;
}
.btn-dash-alt:hover { background: rgba(142, 68, 173, 0.05); }

/* Stats */
.dash-stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 80px;
}
.ds-item {
    background: var(--dash-secondary); padding: 25px; border-radius: 8px;
    text-align: center; border: 1px solid var(--dash-border);
}
.ds-val { font-size: 32px; font-weight: 700; color: var(--dash-primary); margin-bottom: 5px;}
.ds-lbl { font-size: 13px; color: #777; font-weight: 500;}

/* Features */
.dash-features { margin-bottom: 80px;}
.dash-features h2 { font-size: 28px; text-align: center; margin-bottom: 40px; color: #222;}
.df-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px;}
.df-card {
    background: var(--dash-secondary); padding: 30px; border-radius: 8px;
    border-top: 4px solid var(--dash-primary); box-shadow: 0 5px 15px rgba(0,0,0,0.03);
}
.df-card h3 { font-size: 20px; margin-bottom: 15px; color: #333;}
.df-card p { font-size: 15px; color: #666;}

/* Nodes */
.dash-nodes { margin-bottom: 80px; background: var(--dash-secondary); padding: 40px; border-radius: 12px;}
.dash-nodes h2 { font-size: 28px; margin-bottom: 30px; color: #222;}
.dn-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px;}
.dn-item {
    padding: 15px 20px; background: var(--dash-bg); border-radius: 6px;
    display: flex; justify-content: space-between; align-items: center;
    border: 1px solid var(--dash-border);
}
.dn-status { display: inline-block; padding: 4px 10px; background: #e6f4ea; color: #28a745; font-size: 12px; border-radius: 12px; font-weight: bold;}

/* FAQ */
.dash-faq { margin-bottom: 100px;}
.dash-faq h2 { font-size: 28px; text-align: center; margin-bottom: 40px; color: #222;}
.d-faq-item {
    background: var(--dash-secondary); padding: 25px; border-radius: 8px;
    margin-bottom: 15px; border-left: 4px solid var(--dash-accent);
}
.d-fq { font-size: 18px; font-weight: 600; margin-bottom: 10px; color: #333;}
.d-fa { font-size: 15px; color: #666;}

footer {
    text-align: center; padding: 30px 0; color: #888; font-size: 14px;
    border-top: 1px solid var(--dash-border);
}

@media (max-width: 900px) {
    .dash-hero { flex-direction: column; text-align: center; padding: 40px 20px;}
    .dh-visual { width: 100%; }
    .dash-stats { grid-template-columns: repeat(2, 1fr); }
    .df-grid { grid-template-columns: 1fr; }
    .dn-list { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .dash-header { flex-direction: column; gap: 15px; padding: 15px 0;}
    .dash-brand { margin-left: 0; }
    .dash-nav { margin-right: 0; flex-wrap: wrap; justify-content: center;}
    .btn-dash, .btn-dash-alt { display: block; margin: 10px auto; width: 100%;}
}