:root {
    --adv-bg: #121212;
    --adv-text: #e0e0e0;
    --adv-primary: #ff3b30; /* Strong Red */
    --adv-secondary: #007aff; /* Blue */
    --adv-card: #1e1e1e;
    --adv-border: #333333;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--adv-bg); color: var(--adv-text);
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
}

.adv-container { max-width: 1000px; margin: 0 auto; padding: 0 40px; }

/* Header */
.adv-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 30px 0; border-bottom: 1px solid var(--adv-border);
    margin-bottom: 60px;
}
.adv-brand {
    font-size: 24px; font-weight: 800; color: #fff;
    letter-spacing: 1px; text-transform: uppercase;
}
.adv-brand span { color: var(--adv-primary); }
.adv-nav { display: flex; gap: 30px; }
.adv-nav a {
    color: #888; text-decoration: none; font-size: 14px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 1px; transition: color 0.3s;
}
.adv-nav a:hover, .adv-nav a.active { color: #fff; }

/* Hero */
.adv-hero {
    text-align: center; margin-bottom: 80px;
}
.adv-hero h1 {
    font-size: 48px; color: #fff; margin-bottom: 20px; font-weight: 800;
    letter-spacing: -1px;
}
.adv-hero p {
    font-size: 18px; color: #aaa; max-width: 700px; margin: 0 auto 40px;
}

.btn-adv {
    display: inline-block; padding: 16px 40px; font-size: 16px; font-weight: bold;
    color: #fff; background: var(--adv-primary); border-radius: 4px;
    text-decoration: none; text-transform: uppercase; letter-spacing: 1px;
    transition: background 0.3s;
}
.btn-adv:hover { background: #d32f2f; }

/* Settings Grid */
.adv-settings { margin-bottom: 100px; }
.s-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.s-card {
    background: var(--adv-card); padding: 40px; border-radius: 8px;
    border: 1px solid var(--adv-border);
}
.s-header { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; border-bottom: 1px solid var(--adv-border); padding-bottom: 15px;}
.s-icon { font-size: 24px; color: var(--adv-secondary); }
.s-card h3 { font-size: 20px; color: #fff; font-weight: 600;}
.s-card p { font-size: 14px; color: #888; margin-bottom: 20px;}
.s-toggle {
    display: flex; justify-content: space-between; align-items: center;
    background: #111; padding: 10px 15px; border-radius: 4px; font-size: 14px;
}
.s-toggle span { color: #fff; font-family: monospace;}
.s-toggle .status { color: #4cd964; font-weight: bold;}

/* FAQ */
.adv-faq { margin-bottom: 80px; }
.adv-faq h2 { font-size: 28px; color: #fff; margin-bottom: 40px; text-align: center;}
.a-faq-item {
    background: var(--adv-card); margin-bottom: 15px; border-radius: 4px;
    border-left: 3px solid var(--adv-primary); padding: 20px 30px;
}
.a-fq { font-weight: 600; font-size: 16px; color: #fff; margin-bottom: 10px;}
.a-fa { color: #aaa; font-size: 14px;}

footer {
    text-align: center; padding: 40px 0; color: #555; font-size: 13px;
    border-top: 1px solid var(--adv-border); text-transform: uppercase; letter-spacing: 2px;
}

@media (max-width: 768px) {
    .adv-header { flex-direction: column; gap: 20px; }
    .s-grid { grid-template-columns: 1fr; }
    .adv-hero h1 { font-size: 36px; }
}