/* Viestro Guides — standalone, on-brand editorial styling.
   Monochrome dark to match the app's design language (paper #07080b / ink #fff).
   No JS, no framework — these pages are pure static HTML for maximum crawlability. */

:root {
  --paper: #07080b;
  --paper-1: #0c0e13;
  --paper-2: #11141b;
  --line: #1f2430;
  --ink-0: #ffffff;
  --ink-2: #d7dbe4;
  --ink-3: #aeb4c2;
  --ink-5: #6b7283;
  --radius: 14px;
  --max: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-2);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--ink-0); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }

/* Top bar */
.gd-top {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(10px);
}
.gd-top .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.gd-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink-0); text-decoration: none; font-size: 16px; }
.gd-mark {
  width: 26px; height: 26px; border-radius: 8px;
  display: grid; place-items: center;
  background: var(--ink-0); color: var(--paper);
  font-weight: 800; font-size: 15px;
}
.gd-top-cta {
  font-size: 14px; font-weight: 600; color: var(--paper);
  background: var(--ink-0); padding: 8px 14px; border-radius: 999px;
  text-decoration: none; white-space: nowrap;
}
.gd-top-cta:hover { opacity: .9; text-decoration: none; }

/* Article */
main { padding: 48px 0 24px; }
.eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-5); margin: 0 0 14px;
}
h1 {
  color: var(--ink-0); font-weight: 800; letter-spacing: -0.02em;
  font-size: clamp(30px, 6vw, 44px); line-height: 1.12; margin: 0 0 16px;
}
h2 {
  color: var(--ink-0); font-weight: 700; letter-spacing: -0.01em;
  font-size: clamp(22px, 4vw, 28px); line-height: 1.25; margin: 44px 0 14px;
}
h3 { color: var(--ink-0); font-weight: 600; font-size: 19px; margin: 28px 0 10px; }
p { margin: 0 0 18px; }
.lead { font-size: 19px; color: var(--ink-2); margin-bottom: 28px; }
ul, ol { margin: 0 0 18px; padding-left: 22px; }
li { margin: 0 0 10px; }
strong { color: var(--ink-0); font-weight: 600; }
hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }

.byline { color: var(--ink-5); font-size: 14px; margin-bottom: 32px; }

code {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px; background: var(--paper-2); border: 1px solid var(--line);
  padding: 2px 6px; border-radius: 6px; color: var(--ink-2);
}
pre {
  background: var(--paper-1); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; overflow-x: auto; margin: 0 0 22px;
}
pre code { background: none; border: 0; padding: 0; font-size: 13.5px; line-height: 1.6; }

blockquote {
  margin: 0 0 22px; padding: 4px 0 4px 18px;
  border-left: 2px solid var(--ink-5); color: var(--ink-3); font-style: italic;
}

/* In-article CTA card */
.gd-cta {
  margin: 40px 0; padding: 26px;
  background: var(--paper-1); border: 1px solid var(--line); border-radius: var(--radius);
}
.gd-cta h3 { margin-top: 0; }
.gd-cta p { color: var(--ink-3); }
.gd-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--ink-0); color: var(--paper); font-weight: 600; font-size: 15px;
  padding: 11px 18px; border-radius: 999px; text-decoration: none; margin-top: 6px;
}
.gd-btn:hover { opacity: .9; text-decoration: none; }

/* Index / cards */
.gd-hero { padding: 56px 0 28px; }
.gd-grid { display: grid; gap: 16px; padding-bottom: 40px; }
.gd-card {
  display: block; padding: 24px; text-decoration: none; color: inherit;
  background: var(--paper-1); border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .15s ease, transform .15s ease;
}
.gd-card:hover { border-color: var(--ink-5); transform: translateY(-2px); text-decoration: none; }
.gd-card h2 { font-size: 21px; margin: 0 0 8px; }
.gd-card p { color: var(--ink-3); margin: 0; font-size: 16px; }
.gd-card .tag {
  font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 11px;
  letter-spacing: .1em; text-transform: uppercase; color: var(--ink-5); display: block; margin-bottom: 12px;
}

/* Related */
.gd-related { margin: 44px 0 8px; }
.gd-related .eyebrow { margin-bottom: 16px; }
.gd-related a { display: block; padding: 14px 0; border-top: 1px solid var(--line); color: var(--ink-2); text-decoration: none; }
.gd-related a:last-child { border-bottom: 1px solid var(--line); }
.gd-related a:hover { color: var(--ink-0); }

/* Footer */
footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 30px 0 48px; color: var(--ink-5); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer a { color: var(--ink-3); }

@media (max-width: 560px) {
  body { font-size: 16px; }
  main { padding: 32px 0 16px; }
  .gd-top-cta { padding: 7px 12px; font-size: 13px; }
}