:root {
    --canvas: #131313;
    --surface-slate: #2d2d2d;
    --hazard-white: #ffffff;
    --mint: #3cffd0;
    --mint-border: #309875;
    --ultraviolet: #5200ff;
    --link-hover: #3860be;
    --text-primary: #ffffff;
    --text-secondary: #949494;
    --text-muted: #e9e9e9;
    --radius-sm: 2px;
    --radius-md: 20px;
    --radius-lg: 24px;
    --radius-pill: 40px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", -apple-system, Helvetica, Arial, sans-serif;
    background: var(--canvas);
    color: var(--text-primary);
    line-height: 1.6;
}

a { color: var(--mint); text-decoration: none; }
a:hover { color: var(--link-hover); }

h1, h2, h3 { color: var(--text-primary); font-weight: 700; }
h1 { font-size: 2.6rem; letter-spacing: -0.01em; }
h2 { font-size: 1.6rem; margin-top: 2.5rem; }
h3 { font-size: 1.15rem; }
p { color: var(--text-muted); }

.dd-topnav {
    background: var(--canvas);
    border-bottom: 1px solid #313131;
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 20;
}
.dd-topnav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.dd-brand { font-weight: 700; font-size: 1.2rem; color: var(--text-primary); }
.dd-brand span { color: var(--mint); }
.dd-nav-links ul { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; }
.dd-nav-links a {
    color: var(--text-primary);
    font-family: "Courier New", monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.dd-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}
.dd-nav-toggle span { width: 22px; height: 2px; background: var(--text-primary); }

.dd-main { max-width: 1200px; margin: 0 auto; padding: 40px 24px 96px; }

.dd-hero {
    background: var(--surface-slate);
    border-radius: var(--radius-lg);
    padding: 48px 32px;
    margin-bottom: 40px;
}
.dd-hero h1 { margin-top: 0; }
.dd-hero p.lead { max-width: 640px; }

.dd-btn {
    display: inline-block;
    font-family: "Courier New", monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 10px 24px;
    border-radius: var(--radius-pill);
    border: none;
    cursor: pointer;
}
.dd-btn-primary { background: var(--mint); color: #000; }
.dd-btn-primary:hover { background: rgba(255,255,255,0.2); color: #000; }
.dd-btn-secondary { background: var(--surface-slate); color: var(--text-muted); }

.dd-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 24px 0 40px;
}
.dd-card {
    background: var(--canvas);
    border: 1px solid var(--hazard-white);
    border-radius: var(--radius-md);
    padding: 20px;
}
.dd-card img { width: 100%; height: 150px; object-fit: contain; background: var(--surface-slate); border-radius: var(--radius-sm); margin-bottom: 12px; padding: 10px; }
.dd-card h3 { margin-top: 0; font-size: 1.05rem; }
.dd-card .dd-meta {
    font-family: "Courier New", monospace;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--mint);
}

.dd-breadcrumb {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.dd-breadcrumb a { color: var(--text-secondary); }
.dd-breadcrumb a:hover { color: var(--mint); }

.dd-toc {
    background: var(--surface-slate);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin: 24px 0;
}
.dd-toc h2 { margin-top: 0; font-size: 1.1rem; }
.dd-toc ul { margin: 0; padding-left: 20px; }
.dd-toc a { color: var(--text-muted); }

article img.dd-article-img {
    width: 100%;
    max-height: 340px;
    object-fit: contain;
    background: var(--surface-slate);
    border: 1px solid var(--hazard-white);
    border-radius: var(--radius-lg);
    margin: 16px 0;
    padding: 16px;
}
figcaption { font-size: 0.78rem; color: var(--text-secondary); }

.dd-related { margin-top: 48px; padding-top: 32px; border-top: 1px solid #313131; }

.dd-faq-item {
    border: 1px solid var(--mint-border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-bottom: 10px;
    background: var(--surface-slate);
}
.dd-faq-item summary { cursor: pointer; font-weight: 700; color: var(--text-primary); }

.dd-form-group { margin-bottom: 16px; }
.dd-form-group label { display: block; font-weight: 700; font-size: 0.85rem; margin-bottom: 6px; color: var(--text-primary); }
.dd-form-group input, .dd-form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--hazard-white);
    background: var(--canvas);
    color: var(--text-primary);
    font-family: inherit;
}
.dd-form-group input:focus, .dd-form-group textarea:focus { outline: none; border-color: var(--mint); }
.dd-form-error { color: var(--ultraviolet); font-size: 0.78rem; margin-top: 4px; display: none; }
.dd-form-success {
    background: rgba(60,255,208,0.1);
    border: 1px solid var(--mint);
    color: var(--mint);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-top: 16px;
    display: none;
}

.dd-alpha-index ul { list-style: none; padding: 0; margin: 0; }
.dd-alpha-index > ul > li { margin-bottom: 16px; }
.dd-alpha-letter {
    display: block;
    font-family: "Courier New", monospace;
    text-transform: uppercase;
    color: var(--mint);
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}
.dd-alpha-index ul ul { padding-left: 12px; }
.dd-alpha-index ul ul li { margin-bottom: 6px; }
.dd-alpha-index a { color: var(--text-muted); }

.dd-footer { background: var(--canvas); border-top: 1px solid #313131; padding: 48px 0 24px; margin-top: 48px; }
.dd-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}
.dd-footer-col h3 {
    font-family: "Courier New", monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-top: 0;
}
.dd-footer-col ul { list-style: none; padding: 0; margin: 0; }
.dd-footer-col li { margin-bottom: 8px; }
.dd-footer-col a { color: var(--text-muted); font-size: 0.88rem; }
.dd-footer-disclaimers {
    max-width: 1200px;
    margin: 32px auto 0;
    padding: 20px 24px 0;
    border-top: 1px solid #313131;
}
.dd-footer-disclaimers p { font-size: 0.75rem; color: var(--text-secondary); margin: 4px 0; }
.dd-footer-bottom { max-width: 1200px; margin: 16px auto 0; padding: 0 24px; font-size: 0.78rem; color: var(--text-secondary); }

.dd-cookie-banner {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--surface-slate);
    color: var(--text-primary);
    padding: 16px 24px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    z-index: 50;
    border-top: 1px solid var(--mint);
}
.dd-cookie-banner p { color: var(--text-muted); margin: 0; font-size: 0.85rem; max-width: 640px; }
.dd-cookie-actions { display: flex; gap: 10px; }

@media (max-width: 900px) {
    .dd-card-grid { grid-template-columns: 1fr; }
    .dd-footer-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .dd-nav-toggle { display: flex; }
    .dd-nav-links { display: none; width: 100%; }
    .dd-nav-links.open { display: block; margin-top: 12px; }
    .dd-nav-links ul { flex-direction: column; gap: 12px; }
    h1 { font-size: 2rem; }
    .dd-footer-inner { grid-template-columns: 1fr; }
}