/* XRPL Insights — shared stylesheet */
:root {
  --primary: #7c5cff;
  --primary-light: #9b80ff;
  --primary-dark: #5a3fd6;
  --accent: #00c2ff;
  --accent2: #00e5a0;
  --warn: #ffb020;
  --bg-dark: #0a0e1f;
  --bg-card: #111731;
  --bg-card2: #182043;
  --text-primary: #f0f4ff;
  --text-secondary: #a5b1d6;
  --text-muted: #6b779f;
  --border: #232c52;
  --border-light: #2e3a6b;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 14, 31, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.logo { font-size: 20px; font-weight: 800; color: var(--text-primary); letter-spacing: -0.3px; }
.logo span { color: var(--primary-light); }
.nav-links { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-links a {
  color: var(--text-secondary); padding: 8px 12px; border-radius: 8px; font-size: 14px; font-weight: 500;
}
.nav-links a:hover { color: #fff; background: var(--bg-card2); text-decoration: none; }
.nav-links a.active { color: #fff; background: var(--bg-card2); }

/* ---------- Layout ---------- */
.wrap { max-width: 1160px; margin: 0 auto; padding: 40px 20px; }
.wrap-narrow { max-width: 860px; margin: 0 auto; padding: 40px 20px; }
.hero {
  background: radial-gradient(1200px 500px at 20% -10%, rgba(124, 92, 255, 0.28), transparent 60%),
              radial-gradient(900px 400px at 90% 10%, rgba(0, 194, 255, 0.18), transparent 55%);
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: 1160px; margin: 0 auto; padding: 64px 20px 56px; }
.hero h1 { font-size: 42px; line-height: 1.2; letter-spacing: -1px; margin-bottom: 14px; }
.hero p { color: var(--text-secondary); font-size: 18px; max-width: 680px; }
.hero .badges { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }

.badge {
  display: inline-block; padding: 5px 12px; border-radius: 999px;
  background: var(--bg-card2); border: 1px solid var(--border-light);
  color: var(--text-secondary); font-size: 13px; font-weight: 500;
}
.badge.accent { color: #04101a; background: var(--accent); border-color: var(--accent); font-weight: 700; }
.badge.primary { color: #fff; background: var(--primary-dark); border-color: var(--primary); }

/* ---------- Stat grid (data panel) ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 26px 0; }
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow);
}
.stat-card .label { color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; }
.stat-card .value { font-size: 22px; font-weight: 800; margin-top: 4px; color: var(--text-primary); }
.stat-card .delta { font-size: 13px; font-weight: 600; margin-top: 2px; }
.delta.up { color: var(--accent2); }
.delta.down { color: #ff6b81; }
.stat-note { color: var(--text-muted); font-size: 12px; margin-top: -14px; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; transition: transform 0.15s, border-color 0.15s;
}
.card:hover { transform: translateY(-3px); border-color: var(--primary); }
.card .cat { font-size: 12px; font-weight: 700; color: var(--primary-light); text-transform: uppercase; letter-spacing: 0.8px; }
.card h3 { font-size: 18px; margin: 8px 0 6px; line-height: 1.4; }
.card h3 a { color: var(--text-primary); }
.card h3 a:hover { color: var(--accent); text-decoration: none; }
.card p { color: var(--text-secondary); font-size: 14px; }
.card .meta { color: var(--text-muted); font-size: 12px; margin-top: 12px; }

.section-title { font-size: 26px; letter-spacing: -0.5px; margin: 44px 0 8px; }
.section-sub { color: var(--text-muted); margin-bottom: 22px; }
.rule { border: none; border-top: 1px solid var(--border); margin: 36px 0; }

/* ---------- Article page ---------- */
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 34px; align-items: start; }
.article-body { min-width: 0; }
.article-body h2 { font-size: 26px; margin: 36px 0 12px; letter-spacing: -0.4px; }
.article-body h3 { font-size: 20px; margin: 26px 0 10px; }
.article-body p { margin: 14px 0; color: var(--text-secondary); }
.article-body strong { color: var(--text-primary); }
.article-body ul, .article-body ol { margin: 14px 0 14px 22px; color: var(--text-secondary); }
.article-body li { margin: 6px 0; }
.article-body blockquote {
  border-left: 3px solid var(--primary); background: var(--bg-card);
  padding: 12px 18px; border-radius: 0 10px 10px 0; margin: 18px 0; color: var(--text-secondary);
}
.article-body table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
.article-body th {
  background: var(--bg-card2); color: var(--text-primary); text-align: left;
  padding: 10px 12px; border: 1px solid var(--border-light); font-weight: 600;
}
.article-body td { padding: 10px 12px; border: 1px solid var(--border); color: var(--text-secondary); }
.article-body tr:nth-child(even) td { background: rgba(24, 32, 67, 0.4); }

.article-head { margin-bottom: 30px; }
.article-head h1 { font-size: 34px; line-height: 1.25; letter-spacing: -0.8px; }
.byline { color: var(--text-muted); font-size: 14px; margin-top: 12px; }
.byline a { color: var(--text-secondary); }

/* info / tip / warn boxes */
.box { border-radius: var(--radius); padding: 16px 18px; margin: 18px 0; border: 1px solid; }
.box.tip { background: rgba(0, 229, 160, 0.08); border-color: rgba(0, 229, 160, 0.35); }
.box.tip strong { color: var(--accent2); }
.box.info { background: rgba(0, 194, 255, 0.07); border-color: rgba(0, 194, 255, 0.3); }
.box.info strong { color: var(--accent); }
.box.warn { background: rgba(255, 176, 32, 0.08); border-color: rgba(255, 176, 32, 0.35); }
.box.warn strong { color: var(--warn); }

/* sources list */
.sources { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; margin: 24px 0; }
.sources h3 { font-size: 15px; margin-bottom: 10px; color: var(--text-primary); }
.sources ol { margin-left: 20px; }
.sources li { color: var(--text-secondary); font-size: 13px; margin: 5px 0; }
.sources a { color: var(--text-secondary); }
.sources a:hover { color: var(--accent); }

/* FAQ */
.faq { border: 1px solid var(--border); border-radius: var(--radius); margin: 14px 0; background: var(--bg-card); }
.faq summary { padding: 16px 20px; cursor: pointer; font-weight: 600; color: var(--text-primary); list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 20px; color: var(--primary-light); font-weight: 800; }
.faq[open] summary::after { content: "−"; }
.faq p { padding: 0 20px 16px; color: var(--text-secondary); font-size: 15px; }

/* sidebar widget */
.sidebar { position: sticky; top: 84px; }
.widget {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px; margin-bottom: 18px;
}
.widget h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-muted); margin-bottom: 12px; }
.widget .kv { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.widget .kv:last-child { border-bottom: none; }
.widget .kv .k { color: var(--text-muted); }
.widget .kv .v { color: var(--text-primary); font-weight: 600; }
.widget .toc {
  display: flex;
  flex-direction: column;
}
.widget .toc a {
  display: block;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.45;
  padding: 10px 14px;
  margin: 0;
  border-radius: 0;
  border: none;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s, color 0.15s;
  word-break: break-word;
  hyphens: auto;
}
.widget .toc a:last-child { border-bottom: none; }
.widget .toc a:hover {
  color: var(--accent);
  background: var(--bg-card2);
  text-decoration: none;
}

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); margin-top: 60px; background: var(--bg-card); }
.footer-inner { max-width: 1160px; margin: 0 auto; padding: 36px 20px; display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer .f-brand { color: var(--text-secondary); font-size: 14px; max-width: 420px; }
.footer .f-brand b { color: var(--text-primary); }
.footer .f-links { display: flex; gap: 22px; flex-wrap: wrap; font-size: 14px; }
.footer .f-links a { color: var(--text-secondary); }
.footer .f-links a:hover { color: var(--accent); }
.footer .f-bottom { border-top: 1px solid var(--border); }
.footer .f-bottom-inner { max-width: 1160px; margin: 0 auto; padding: 14px 20px; color: var(--text-muted); font-size: 12px; }

/* ---------- Pagination / chips ---------- */
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; }
.chip {
  padding: 5px 12px; border-radius: 999px; font-size: 13px; font-weight: 600;
  background: var(--bg-card); border: 1px solid var(--border-light); color: var(--text-secondary);
}
.chip:hover { border-color: var(--primary); color: var(--text-primary); text-decoration: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .hero h1 { font-size: 32px; }
}
@media (max-width: 600px) {
  .grid, .grid-2 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}