:root {
    --primary: #fbbf24; /* Amber 400 */
    --primary-hover: #d97706;
    --bg-body: #0a0a0a;
    --bg-card: #171717;
    --bg-header: #000000;
    --text-main: #e5e5e5;
    --text-muted: #a3a3a3;
    --border: #262626;
    --accent-green: #22c55e;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.7;
    margin: 0;
    padding: 0;
    font-size: 16px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    max-width: 900px; /* SEO Text focus, narrow reading width */
    margin: 0 auto;
    padding: 20px;
}

/* Typography Hiearchy */
h1, h2, h3 { color: #fff; font-weight: 700; margin-top: 1.5em; margin-bottom: 0.5em; line-height: 1.3; }
h1 { font-size: 2.2rem; border-bottom: 2px solid var(--primary); padding-bottom: 15px; margin-top: 0; }
h2 { font-size: 1.6rem; border-left: 4px solid var(--primary); padding-left: 15px; background: var(--bg-card); padding-top: 10px; padding-bottom: 10px; }
h3 { font-size: 1.3rem; color: var(--primary); }
p { margin-bottom: 1.5em; color: var(--text-muted); text-align: justify; }

/* Update Box */
.update-box {
    background: rgba(34, 197, 94, 0.1); /* Green tint */
    border-left: 4px solid var(--accent-green);
    padding: 16px;
    margin-bottom: 30px;
    border-radius: 0 4px 4px 0;
    font-size: 0.95rem;
    color: #dcfce7;
}
.update-box strong { color: var(--accent-green); text-transform: uppercase; letter-spacing: 0.5px; }

/* CTA Conversion Box */
.cta-box {
    background: linear-gradient(135deg, #1e1e1e, #2d2d2d);
    border: 1px solid #eab308; /* Yellow border */
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(234, 179, 8, 0.2);
}
.cta-text {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 15px;
}
.pulse-btn {
    background: #eab308;
    color: #000;
    font-weight: 800;
    font-size: 1.1rem;
    padding: 12px 30px;
    border-radius: 50px;
    display: inline-block;
    text-transform: uppercase;
    box-shadow: 0 0 0 0 rgba(234, 179, 8, 0.7);
    animation: pulse-yellow 2s infinite;
    border: none;
    cursor: pointer;
}
.pulse-btn:hover {
    background: #ca8a04;
    color: #fff;
    text-decoration: none;
}
@keyframes pulse-yellow {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(234, 179, 8, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(234, 179, 8, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(234, 179, 8, 0); }
}

/* Table of Contents */
.toc-box {
    background: #111827;
    border: 1px solid #374151;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    display: inline-block;
    min-width: 50%;
}
.toc-title {
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-main);
    text-align: center;
    border-bottom: 1px solid #374151;
    padding-bottom: 8px;
}
.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.toc-list li {
    margin-bottom: 8px;
}
.toc-list a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.95rem;
}
.toc-list a:hover {
    text-decoration: underline;
    color: var(--primary-hover);
}

/* Keyword Tags Cloud */
.keyword-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0;
}
.tag-cloud li {
    background: #262626;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-main);
    border: 1px solid #404040;
}
.tag-cloud li:hover { border-color: var(--primary); color: var(--primary); cursor: default; }

/* Feature List */
.feature-list { list-style: none; padding: 0; }
.feature-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 12px;
    color: var(--text-muted);
}
.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-green);
    font-weight: bold;
}

/* Alternatives Table */
.alt-table { width: 100%; border-collapse: collapse; margin: 20px 0; background: var(--bg-card); }
.alt-table th, .alt-table td { padding: 12px 15px; border: 1px solid var(--border); text-align: left; }
.alt-table th { background: #262626; color: var(--primary); }

/* FAQ Section */
.faq-item {
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 10px;
    background: var(--bg-card);
}
.faq-question {
    padding: 15px;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    position: relative;
}
.faq-answer {
    padding: 0 15px 15px 15px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Disclaimer Footer */
.disclaimer {
    margin-top: 50px;
    padding: 30px;
    background: #1a1a1a;
    border-top: 1px solid #333;
    font-size: 0.85rem;
    text-align: center;
    color: #666;
}

/* Header (Minimal) */
header { border-bottom: 1px solid var(--border); margin-bottom: 30px; padding: 15px 0; }
.logo { font-size: 24px; font-weight: 900; color: #fff; text-transform: uppercase; }

/* Hero Image */
.hero-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
    margin: 20px 0;
    display: block;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    background: #171717; /* Placeholder color before load */
}
/* Tech Guide Box */
.tech-box {
    background: #1e293b;
    border: 1px dashed #475569;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}
.tech-title { color: var(--primary); font-weight: 700; margin-bottom: 10px; display: block; }
.code-snippet {
    background: #0f172a;
    padding: 8px 12px;
    border-radius: 4px;
    font-family: monospace;
    color: #22c55e;
    display: inline-block;
    border: 1px solid #334155;
    margin: 4px 0;
}
.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
    margin-top: 20px;
}
.device-item {
    background: #262626;
    padding: 15px;
    text-align: center;
    border-radius: 6px;
    border: 1px solid #333;
}
.device-icon { font-size: 24px; margin-bottom: 8px; display: block; }