/* landing.css — styles for the standalone marketing landing page */
:root {
  --bg: #111;
  --surface: #1a1a1a;
  --surface2: #1e1e1e;
  --border: #2e2e2e;
  --text: #ddd;
  --muted: #888;
  --accent: #c8a84b;
  --accent2: #e8c86b;
  --font-body: Georgia, "Times New Roman", serif;
  --font-ui: system-ui, sans-serif;
  --max: 860px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.75;
}

/* ── Hero ───────────────────────────────────────────── */
.hero {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 4rem 2rem 3rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.hero img.da-logo { max-width: 480px; width: 90%; height: auto; margin-bottom: 1rem; }
.hero img.da-icon  { max-width: 300px; width: 50%; height: auto; margin-bottom: 1.5rem; }
footer .thzero-wrap {
  position: relative;
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  line-height: 0;
  margin-bottom: 2rem;
  text-decoration: none;
}
footer .thzero-wrap img { height: 80px; width: auto; display: block; }
footer .thzero-wrap .thzero-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding-left: 28%;
  font-size: 1.2em;
  font-weight: bold;
  color: #ffffff;
  letter-spacing: 0.12em;
  pointer-events: none;
  padding-left: 300px;
}
.hero .tagline {
  font-size: 1.5rem;
  font-family: var(--font-ui);
  color: var(--accent);
  font-weight: bold;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  max-width: var(--max);
}
.hero .sub {
  font-size: 1rem;
  color: var(--muted);
  font-family: var(--font-ui);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}
.hero .lead {
  max-width: var(--max);
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 2.5rem;
}
.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #111;
  font-family: var(--font-ui);
  font-weight: bold;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 2.5rem;
  border-radius: 3px;
  transition: background 0.15s;
}
.cta-btn:hover { background: var(--accent2); }

/* ── Watermark icon ─────────────────────────────────── */
.content-wrap {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
}
.watermark-icon {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 85vmin;
  height: auto;
  opacity: 0.3;
  filter: brightness(1);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* ── Content sections ───────────────────────────────── */
.content {
  position: relative;
  z-index: 1;
  padding: 3rem 2rem 5rem;
}
.content h1 { display: none; } /* page h1 is the hero — hide the md one */
.content h2 {
  font-family: var(--font-ui);
  color: var(--accent);
  font-size: 1.6rem;
  margin: 3rem 0 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}
.content h3 {
  font-family: var(--font-ui);
  color: var(--accent2);
  font-size: 1.15rem;
  margin: 2rem 0 0.5rem;
}
.content p { margin: 0.75rem 0; }
.content ul, .content ol { margin: 0.75rem 0 0.75rem 1.5rem; }
.content li { margin: 0.4rem 0; }
.content strong { color: #eee; }
.content em { color: var(--muted); }
.content blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--accent2);
  font-size: 1.15rem;
  font-style: italic;
  background: var(--surface2);
  border-radius: 0 3px 3px 0;
}
.content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}
.content a { color: var(--accent); }

/* ── Comparison table ───────────────────────────────── */
.content table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}
.content th, .content td {
  border: 1px solid var(--border);
  padding: 0.6rem 1rem;
  text-align: left;
}
.content th {
  background: var(--surface);
  color: var(--accent);
  font-family: var(--font-ui);
  font-weight: bold;
}
.content tr:nth-child(even) { background: var(--surface2); }

/* ── Footer ─────────────────────────────────────────── */
footer {
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* ── Nav bar (back to docs) ─────────────────────────── */
.top-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 2rem;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.top-nav a {
  color: var(--muted);
  text-decoration: none;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  transition: color 0.15s;
}
.top-nav a:hover { color: var(--accent); }