/* Consultant Stack — base stylesheet
   No external fonts, no CDN, no trackers. System fonts only. */

:root {
  --bg: #0f1115;
  --panel: #161a21;
  --panel-2: #1d232c;
  --border: #2a323d;
  --text: #e8ecf1;
  --muted: #9aa6b4;
  --accent: #5eead4;
  --max: 44rem;
  --radius: 10px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

.site-header { border-bottom: 1px solid var(--border); background: rgba(15,17,21,0.9); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 62px; flex-wrap: wrap;
}
.brand { font-weight: 650; font-size: 1.02rem; letter-spacing: -0.01em; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
.site-nav { display: flex; gap: 18px; font-size: 0.94rem; }
.site-nav a { color: var(--muted); text-decoration: none; padding: 4px 0; border-bottom: 1px solid transparent; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); }

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: 2.05rem; margin-top: 0; }
h2 { font-size: 1.3rem; margin-top: 2.2em; }
h3 { font-size: 1.02rem; margin-top: 1.6em; }
p { margin: 0 0 1.05em; }
a { color: var(--accent); }
ul, ol { margin: 0 0 1.05em; padding-left: 1.3em; }
li { margin-bottom: 0.45em; }
strong { font-weight: 650; }
.muted { color: var(--muted); }

.hero { padding: 56px 0 40px; border-bottom: 1px solid var(--border); }
.eyebrow {
  display: inline-block; font-size: 0.78rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent);
  border: 1px solid var(--border); border-radius: 999px;
  padding: 4px 11px; margin-bottom: 20px;
}
.hero h1 { max-width: 30ch; }
.lede { font-size: 1.1rem; color: var(--muted); max-width: 38ch; margin-bottom: 0; }
main { padding: 44px 0 20px; }

.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin: 24px 0 8px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 18px 6px; }
.card h3 { margin-top: 0; }
.card p { color: var(--muted); font-size: 0.95rem; }

.notice {
  background: var(--panel-2); border: 1px solid var(--border);
  border-left: 3px solid var(--accent); border-radius: 6px;
  padding: 14px 16px 4px; margin: 26px 0; font-size: 0.95rem;
}
.notice p { color: var(--muted); }

.site-footer { border-top: 1px solid var(--border); margin-top: 56px; padding: 26px 0 40px; font-size: 0.88rem; color: var(--muted); }
.site-footer p { margin: 0 0 0.5em; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: 1.68rem; }
  h2 { font-size: 1.18rem; }
  .hero { padding: 40px 0 32px; }
  main { padding: 34px 0 12px; }
  .site-header .wrap { min-height: 56px; }
  .site-nav { gap: 14px; font-size: 0.9rem; }
  .lede { font-size: 1.02rem; }
}
/* ---------- Product pages ---------- */
.price { font-size: 1.05rem; margin: 20px 0 22px; }
.price strong { font-size: 1.55rem; color: var(--accent); }
.btn {
  display: inline-block; background: var(--accent); color: #0f1115;
  font-weight: 650; text-decoration: none;
  padding: 12px 22px; border-radius: 8px;
}
.btn:hover { filter: brightness(1.1); }
.tier-table { width: 100%; border-collapse: collapse; font-size: 0.93rem; margin: 18px 0 10px; }
.tier-table th, .tier-table td {
  text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top;
}
.tier-table th {
  background: var(--panel-2); font-size: 0.78rem; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--muted); font-weight: 600;
}
.tier-table tr:last-child td { border-bottom: 0; }
@media (max-width: 560px) {
  .tier-table th, .tier-table td { padding: 8px 9px; font-size: 0.88rem; }
}
dl { margin: 0 0 1.05em; }
dt { font-weight: 650; margin-top: 1.1em; }
dd { margin: 0.25em 0 0.9em 0; color: var(--muted); }

/* ---------- Article pages ---------- */
.post { padding: 44px 0 24px; }
.post-meta {
  font-size: 0.8rem; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 18px;
}
.post h1 { font-size: 2.1rem; line-height: 1.22; margin-bottom: 0.6em; max-width: 34ch; }
.post h2 { font-size: 1.32rem; margin-top: 2.4em; padding-top: 1.1em; border-top: 1px solid var(--border); }
.post > p:first-of-type { font-size: 1.14rem; color: #dfe6ee; }
.post p { text-wrap: pretty; }
.post ul, .post ol { padding-left: 1.35em; }
.post li { margin-bottom: 0.55em; }

.post blockquote {
  margin: 24px 0; padding: 16px 18px;
  background: var(--panel); border: 1px solid var(--border);
  border-left: 3px solid var(--accent); border-radius: 8px;
}
.post blockquote p { margin: 0 0 10px; font-size: 0.96rem; color: #d3dbe4; }
.post blockquote p:last-child { margin-bottom: 0; }

.post code {
  font-family: ui-monospace, Consolas, "SF Mono", Menlo, monospace;
  font-size: 0.9em; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 5px;
}

.table-scroll { overflow-x: auto; margin: 24px 0; -webkit-overflow-scrolling: touch; }
.post table { width: 100%; border-collapse: collapse; font-size: 0.93rem; min-width: 460px; }
.post th, .post td {
  text-align: left; padding: 10px 13px; border-bottom: 1px solid var(--border); vertical-align: top;
}
.post th {
  background: var(--panel-2); font-size: 0.78rem; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--muted); font-weight: 600;
}
.post tr:last-child td { border-bottom: 0; }

@media (max-width: 560px) {
  .post { padding: 30px 0 16px; }
  .post h1 { font-size: 1.62rem; }
  .post h2 { font-size: 1.16rem; margin-top: 2em; }
  .post > p:first-of-type { font-size: 1.04rem; }
  .post blockquote { padding: 13px 14px; }
}

/* ---------- Post list (homepage) ---------- */
.post-list { list-style: none; padding: 0; margin: 22px 0 8px; }
.post-list > li {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px 10px; margin: 0 0 12px;
}
.post-list > li > a { font-weight: 650; text-decoration: none; }
.post-list > li > a:hover { text-decoration: underline; }
.post-list-meta {
  display: block; font-size: 0.76rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--muted); margin-top: 6px;
}
.post-list p { color: var(--muted); font-size: 0.94rem; margin: 10px 0 6px; }