/* SolFee — clean light news/research theme */
:root {
  --bg: #ffffff;
  --fg: #1c2333;
  --muted: #5b6478;
  --line: #e4e8f0;
  --accent: #9945ff;      /* Solana purple */
  --accent-dark: #7c2fd8;
  --accent-soft: #f3ecff;
  --green: #14b26a;
  --code-bg: #f6f7fb;
  --maxw: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.65;
  font-size: 16px;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* header */
.header { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding: 14px 20px; }
.brand { font-weight: 800; font-size: 22px; color: var(--fg); text-decoration: none; letter-spacing: -0.4px; }
.brand::before { content: "◎ "; color: var(--accent); }
.nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; margin: 0; padding: 0; }
.nav a { display: block; padding: 7px 12px; color: var(--muted); text-decoration: none; border-radius: 8px; font-size: 14.5px; font-weight: 500; }
.nav a:hover { background: var(--accent-soft); color: var(--accent-dark); }

/* hero */
.hero { padding: 64px 0 40px; }
.hero h1 { font-size: 42px; line-height: 1.15; letter-spacing: -1px; margin: 0 0 14px; max-width: 760px; }
.hero p { color: var(--muted); font-size: 18px; max-width: 680px; margin: 0 0 24px; }
.btn { display: inline-block; background: var(--accent); color: #fff; padding: 12px 22px; border-radius: 10px; text-decoration: none; font-weight: 600; margin-right: 10px; }
.btn:hover { background: var(--accent-dark); }
.btn.ghost { background: transparent; color: var(--accent-dark); border: 1.5px solid var(--accent); }

/* stats */
.stats { padding: 30px 0 20px; border-top: 1px solid var(--line); }
.stats h2, .posts h2, .cats h2, .about-strip h2, .related h2 { font-size: 21px; margin: 26px 0 16px; }
.asof { font-size: 14px; color: var(--muted); font-weight: 400; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 820px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
.stat { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; background: #fcfcff; }
.stat-l { display: block; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--muted); }
.stat-v { display: block; font-size: 22px; font-weight: 700; margin-top: 4px; color: var(--accent-dark); }
.stat-src { font-size: 13px; color: var(--muted); margin-top: 14px; }

/* posts */
.posts { padding-bottom: 10px; }
.posts ul, .related ul, .posts.posts-list ul { list-style: none; margin: 0; padding: 0; }
.post { border-bottom: 1px solid var(--line); padding: 16px 0; }
.post-cat { display: inline-block; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent-dark); background: var(--accent-soft); padding: 3px 10px; border-radius: 20px; margin-bottom: 6px; }
.post-t { font-size: 19px; font-weight: 700; color: var(--fg); text-decoration: none; display: block; }
.post-t:hover { color: var(--accent-dark); }
.post-d { margin: 6px 0 0; color: var(--muted); font-size: 15px; }
.rel-date { color: var(--muted); font-size: 13.5px; font-weight: 400; }

/* category cards */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
.cat-card { display: block; border: 1px solid var(--line); border-radius: 12px; padding: 16px; text-decoration: none; color: var(--fg); background: #fff; }
.cat-card:hover { border-color: var(--accent); box-shadow: 0 4px 14px rgba(153, 69, 255, 0.10); }
.cat-card strong { display: block; margin-bottom: 6px; font-size: 16px; color: var(--accent-dark); }
.cat-card span { font-size: 14px; color: var(--muted); }

/* about strip */
.about-strip { border-top: 1px solid var(--line); margin: 30px 0 10px; padding-bottom: 30px; }
.about-strip p { color: var(--muted); max-width: 760px; }

/* article pages */
.article, .page { padding-top: 26px; padding-bottom: 40px; max-width: 820px; }
.crumbs { font-size: 13.5px; color: var(--muted); margin-bottom: 18px; }
.crumbs a { color: var(--accent-dark); text-decoration: none; }
.h1 { font-size: 34px; line-height: 1.2; letter-spacing: -0.6px; margin: 0 0 8px; }
.page h1 { font-size: 34px; margin: 0 0 8px; }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 20px; }
.lede { font-size: 18px; color: #39415a; border-left: 3px solid var(--accent); padding-left: 14px; margin: 0 0 26px; }
.article h2 { font-size: 24px; margin: 38px 0 12px; letter-spacing: -0.3px; }
.article h3 { font-size: 19px; margin: 26px 0 8px; }
.article p { margin: 12px 0; }
.article ul, .article ol { margin: 12px 0; padding-left: 24px; }
.article li { margin: 6px 0; }

/* tables */
.table-wrap { overflow-x: auto; margin: 18px 0; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
caption { text-align: left; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); padding-bottom: 8px; }
th { background: var(--accent-soft); color: var(--accent-dark); text-align: left; font-weight: 600; }
th, td { border: 1px solid var(--line); padding: 9px 12px; }
tr:nth-child(even) td { background: #fafbff; }

/* callouts */
.tip, .hl { border-radius: 10px; padding: 14px 16px; margin: 18px 0; font-size: 15px; }
.tip { background: #e9fbf2; border: 1px solid #bfe8d4; }
.hl { background: var(--accent-soft); border: 1px solid #dcc8ff; }
.formula { background: var(--code-bg); border: 1px dashed var(--line); border-radius: 10px; padding: 14px 16px; margin: 18px 0; }
.formula code { font-family: "SF Mono", Consolas, "Courier New", monospace; font-size: 14px; white-space: pre-wrap; }
.src { font-size: 13px; color: var(--muted); margin: 4px 0 18px; }
.src a { color: var(--accent-dark); }

/* faq */
.faq { margin: 18px 0; }
.faq details { border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin: 8px 0; background: #fcfcff; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 15px; }
.faq details p { margin: 10px 0 2px; color: #39415a; font-size: 15px; }

/* related & tags */
.related { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 8px; }
.related li { margin: 10px 0; }
.tags-line { margin-top: 26px; font-size: 14px; color: var(--muted); }
.chip { display: inline-block; background: var(--accent-soft); color: var(--accent-dark); border-radius: 20px; padding: 4px 12px; font-size: 13px; font-weight: 600; text-decoration: none; margin: 3px 4px 3px 0; }
.chip:hover { background: #e5d6ff; }

/* cta */
.cta { background: linear-gradient(135deg, #f3ecff 0%, #fff 100%); border: 1px solid #dcc8ff; border-radius: 14px; padding: 22px 24px; margin: 34px 0 10px; text-align: center; }
.cta-kicker { font-size: 14px; color: var(--muted); margin: 0 0 10px; }
.cta-btn { display: inline-block; background: var(--accent); color: #fff; padding: 12px 26px; border-radius: 10px; text-decoration: none; font-weight: 700; font-size: 16px; }
.cta-btn:hover { background: var(--accent-dark); }
.cta-note { font-size: 13px; color: var(--muted); margin: 12px 0 0; }

/* footer */
.footer { border-top: 1px solid var(--line); background: #fafbfe; margin-top: 30px; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 34px 20px; }
.footer-brand { font-size: 17px; margin-bottom: 10px; }
.footer-links { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 18px; padding: 0; margin: 0 0 16px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 14.5px; }
.footer-links a:hover { color: var(--accent-dark); }
.footer-note, .footer-copy { color: var(--muted); font-size: 13px; max-width: 860px; margin: 6px 0; }

/* dashboard */
.dash .stat-grid { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .dash .stat-grid { grid-template-columns: repeat(2, 1fr); } }
.dash-card { position: relative; }
.dash-card .stat-v { font-size: 20px; word-break: break-word; }
.dash-asof { display: inline-block; background: var(--accent-soft); border: 1px solid #dcc8ff; border-radius: 8px; padding: 8px 14px; font-size: 14px; color: var(--accent-dark); margin: 0 0 8px; }
.dash-cost, .dash-table, .dash-src { padding-top: 8px; }
.dash-cost h2, .dash-table h2, .dash-src h2 { font-size: 21px; margin: 30px 0 12px; }
.dash-src ul { margin: 10px 0; padding-left: 22px; }
.dash-src li { margin: 4px 0; color: var(--muted); font-size: 15px; }

@media (max-width: 720px) {
  .hero h1 { font-size: 32px; }
  .h1 { font-size: 27px; }
  .header-inner { flex-direction: column; align-items: flex-start; }
}