/* DataTools landing-page styles — single shared sheet for all niches.
 *
 * Design constraints:
 *   • No external font / CSS dependencies (works on Cloudflare Pages
 *     with zero build step, no privacy banner needed).
 *   • Mobile-first; layout reflows below 720 px.
 *   • Dark, focused, content-first. Buyer reads this on a laptop
 *     between messy accounting exports — keep it readable and skimmable.
 *   • Persona pages all share this sheet — niche differences live in
 *     copy + accent-color variables overridden in each page's <style>.
 */

:root {
  --bg:           #0f1115;
  --surface:      #161922;
  --surface-2:    #1d212b;
  --text:         #e8eaed;
  --text-mute:    #9aa3b2;
  --text-soft:    #c8ced8;
  --rule:         #252a36;
  --accent:       #6ee7b7;          /* default accent — overridden per persona */
  --accent-ink:   #052e1a;
  --warn:         #fbbf24;
  --max:          1080px;
  --radius:       12px;
  --shadow:       0 1px 3px rgba(0,0,0,0.3), 0 8px 24px rgba(0,0,0,0.2);
  --mono:         ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  --sans:         -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                  "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ----- Sticky buy bar ----- */
.buybar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(15,17,21,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
  padding: 10px 20px;
}
.buybar-inner {
  max-width: var(--max); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.buybar .brand { font-weight: 600; letter-spacing: -0.01em; }
.buybar .brand-mark { color: var(--accent); margin-right: 6px; }
.buybar .price-tag { color: var(--text-mute); font-size: 14px; margin-right: 12px; }

/* ----- Buttons ----- */
.btn {
  display: inline-block;
  background: var(--accent); color: var(--accent-ink);
  font-weight: 600; font-size: 15px;
  padding: 11px 18px; border-radius: 8px;
  border: 0; cursor: pointer;
  transition: transform 0.05s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; box-shadow: var(--shadow); }
.btn-large {
  padding: 14px 24px; font-size: 17px;
}
.btn-ghost {
  background: transparent; color: var(--text-soft);
  border: 1px solid var(--rule);
}
.btn-ghost:hover { background: var(--surface); }

/* ----- Layout ----- */
section {
  padding: 60px 20px;
  border-bottom: 1px solid var(--rule);
}
section:last-of-type { border-bottom: 0; }
.container { max-width: var(--max); margin: 0 auto; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin-top: 0; }
h1 { font-size: 44px; margin-bottom: 18px; }
h2 { font-size: 30px; margin-bottom: 16px; }
h3 { font-size: 19px; margin-bottom: 8px; }
p  { margin: 0 0 14px 0; color: var(--text-soft); }
.muted { color: var(--text-mute); }
.eyebrow { color: var(--accent); font-size: 13px; font-weight: 600;
           text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; }

ul.bullets { padding-left: 20px; margin: 0 0 14px 0; }
ul.bullets li { margin-bottom: 8px; color: var(--text-soft); }

/* ----- Hero ----- */
.hero {
  padding: 80px 20px 60px;
  background: radial-gradient(ellipse at top, var(--surface), var(--bg) 60%);
}
.hero h1 strong { color: var(--accent); font-weight: 700; }
.hero .lead {
  font-size: 19px; color: var(--text-soft); max-width: 720px;
  margin-bottom: 28px;
}
.hero .cta-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero .price-note { color: var(--text-mute); font-size: 14px; }

/* ----- Demo embed ----- */
.demo-frame {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.demo-frame iframe {
  width: 100%; height: 720px; border: 0; display: block;
  background: var(--surface-2);
}
.demo-caption {
  font-size: 14px; color: var(--text-mute);
  padding: 10px 16px; border-top: 1px solid var(--rule);
}

/* ----- Cards / grids ----- */
.grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3 { color: var(--text); }
.card p:last-child { margin-bottom: 0; }
.card .icon {
  display: inline-block; font-size: 22px; margin-bottom: 8px;
}

/* ----- Stats row ----- */
.stats { display: flex; gap: 28px; flex-wrap: wrap; margin: 18px 0 0; }
.stats .stat .num {
  font-family: var(--mono); font-size: 26px; font-weight: 600;
  color: var(--accent);
}
.stats .stat .label { font-size: 13px; color: var(--text-mute); }

/* ----- Privacy / audit callout panels ----- */
.callout {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 18px 22px;
  margin: 18px 0;
}
.callout strong { color: var(--text); }

/* ----- Code-ish blocks ----- */
.terminal {
  font-family: var(--mono); font-size: 14px;
  background: #0a0c10;
  color: #d8dfe8;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  white-space: pre;
  line-height: 1.45;
}
.terminal .prompt { color: var(--text-mute); }
.terminal .ok { color: var(--accent); }
.terminal .warn { color: var(--warn); }

/* ----- Pricing ----- */
.pricing {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.pricing .card .price {
  font-size: 38px; font-weight: 700; letter-spacing: -0.02em;
  color: var(--text);
}
.pricing .card .price-suffix { font-size: 14px; color: var(--text-mute); margin-left: 4px; }
.pricing .card.featured { border-color: var(--accent); }
.pricing .card .row { display: flex; align-items: baseline; gap: 4px; margin-bottom: 12px; }
.pricing .card ul { padding-left: 18px; margin: 12px 0 18px; }
.pricing .card li { color: var(--text-soft); margin-bottom: 6px; }

/* ----- FAQ ----- */
details.faq {
  border-bottom: 1px solid var(--rule);
  padding: 14px 0;
}
details.faq summary {
  font-weight: 600; color: var(--text);
  cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between;
}
details.faq summary::after {
  content: "+"; color: var(--accent); font-size: 22px;
  margin-left: 14px;
}
details.faq[open] summary::after { content: "−"; }
details.faq p { margin-top: 10px; }

/* ----- Footer ----- */
footer {
  padding: 40px 20px 60px;
  font-size: 14px;
  color: var(--text-mute);
}
footer .container { display: flex; gap: 28px; flex-wrap: wrap; justify-content: space-between; }
footer a { color: var(--text-soft); }
footer p { color: var(--text-mute); }

/* ----- Responsive ----- */
@media (max-width: 720px) {
  h1 { font-size: 32px; }
  h2 { font-size: 24px; }
  section { padding: 40px 18px; }
  .hero { padding: 56px 18px 40px; }
  .demo-frame iframe { height: 560px; }
  .buybar-inner .price-tag { display: none; }
}