/* Stock Sentinel marketing site.
   System fonts only: no webfont request, so first paint is not blocked. Page
   weight matters here in a way it does not inside the app -- a visitor who has
   not decided to trust us yet does not wait, and search ranking penalises slow. */

:root {
  --bg: #0b1420;
  --panel: #101c2b;
  --panel-2: #15243a;
  --line: #1d2c3f;
  --line-2: #243447;
  --text: #edf3f9;
  --dim: #93a3b5;
  --faint: #6b7c90;
  --accent: #3d8bfd;
  --accent-hi: #5ba0ff;
  --green: #3fb984;
  --amber: #e5a03c;
  --red: #e2796c;
  --max: 1060px;
}

* { 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, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hi); text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-hi);
  outline-offset: 3px;
  border-radius: 3px;
}

h1, h2, h3 { line-height: 1.2; margin: 0; text-wrap: balance; letter-spacing: -0.02em; }
h1 { font-size: clamp(30px, 4.6vw, 44px); font-weight: 700; }
h2 { font-size: clamp(22px, 3vw, 28px); font-weight: 650; margin-top: 48px; }
h3 { font-size: 18px; font-weight: 650; margin-top: 28px; }
p { margin: 14px 0; color: var(--dim); max-width: 68ch; }
p.lead { font-size: 19px; color: var(--dim); max-width: 60ch; }
strong { color: var(--text); font-weight: 650; }

/* ---------------------------------------------------------------- header -- */
header.site {
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
  background: rgba(11, 20, 32, 0.94);
  backdrop-filter: saturate(140%) blur(8px);
}
header.site .wrap { display: flex; align-items: center; gap: 26px; padding-top: 15px; padding-bottom: 15px; }
.brand {
  font-weight: 700; letter-spacing: 0.13em; font-size: 12.5px;
  color: var(--text); text-transform: uppercase; margin-right: auto;
}
.brand:hover { text-decoration: none; color: var(--accent-hi); }
header.site nav a { color: var(--dim); font-size: 14.5px; }
header.site nav a[aria-current="page"] { color: var(--text); }
header.site nav { display: flex; gap: 22px; align-items: center; }

/* ------------------------------------------------------------------ cta -- */
.cta {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--accent); color: #04101f;
  font-weight: 650; font-size: 15px; padding: 12px 22px;
  border-radius: 6px; border: 0;
  box-shadow: 0 6px 18px -8px rgba(61, 139, 253, 0.85);
  transition: background 0.16s, transform 0.16s;
}
.cta:hover { background: var(--accent-hi); text-decoration: none; color: #04101f; transform: translateY(-1px); }
.cta.ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--line-2); box-shadow: none; font-weight: 550;
}
.cta.ghost:hover { background: var(--panel-2); border-color: var(--accent); color: #fff; }
.cta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin: 28px 0 10px; }
.cta-note { color: var(--dim); font-size: 14.5px; }
.cta-note b { color: var(--text); }

/* ---------------------------------------------------------------- blocks -- */
.hero { padding: 64px 0 8px; }
section { padding-bottom: 8px; }
.lede-rule { height: 1px; background: var(--line); margin: 56px 0 0; border: 0; }

.grid { display: grid; gap: 18px; margin-top: 26px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.two { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 780px) { .grid.three, .grid.two { grid-template-columns: 1fr; } }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 20px 21px;
}
.card h3 { margin-top: 0; }
.card p { margin-bottom: 0; font-size: 15.5px; }
.step-n {
  font-variant-numeric: tabular-nums; color: var(--accent);
  font-weight: 700; font-size: 12px; letter-spacing: 0.12em;
  text-transform: uppercase; display: block; margin-bottom: 8px;
}

.eyebrow {
  color: var(--accent); font-size: 12px; font-weight: 700;
  letter-spacing: 0.11em; text-transform: uppercase; margin-bottom: 12px;
}

/* strip of short trust statements */
.strip {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: 9px; overflow: hidden; margin-top: 34px;
}
.strip div { background: var(--panel); padding: 15px 17px; }
.strip b { display: block; font-size: 14.5px; margin-bottom: 3px; color: var(--text); }
.strip span { color: var(--dim); font-size: 13.5px; }
@media (max-width: 780px) { .strip { grid-template-columns: 1fr; } }

/* faq */
details {
  border-bottom: 1px solid var(--line); padding: 4px 0;
}
details summary {
  cursor: pointer; padding: 15px 0; font-weight: 600; font-size: 16.5px;
  list-style: none; display: flex; justify-content: space-between; gap: 16px;
}
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--accent); font-weight: 700; }
details[open] summary::after { content: "\2212"; }
details .answer { padding: 0 0 16px; }
details .answer p { margin-top: 0; }
details .answer ul { color: var(--dim); margin: 10px 0; padding-left: 20px; }
details .answer li { margin: 5px 0; }

/* price */
.price {
  border: 1px solid var(--line-2); background: var(--panel);
  border-radius: 12px; padding: 26px; max-width: 420px; margin-top: 28px;
}
.price .amount { font-size: 42px; font-weight: 700; letter-spacing: -0.03em; }
.price .amount span { font-size: 17px; color: var(--dim); font-weight: 400; letter-spacing: 0; }
.price ul { list-style: none; padding: 0; margin: 20px 0 0; }
.price li { padding: 9px 0; border-top: 1px solid var(--line); color: var(--dim); font-size: 15px; }
.price li b { color: var(--text); font-weight: 600; }

table.spec { width: 100%; border-collapse: collapse; margin-top: 22px; font-size: 15.5px; }
table.spec th, table.spec td { text-align: left; padding: 11px 14px 11px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
table.spec th { color: var(--faint); font-weight: 600; font-size: 12.5px; letter-spacing: 0.08em; text-transform: uppercase; }
table.spec td { color: var(--dim); }
table.spec td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }

.note {
  border-left: 2px solid var(--accent); background: var(--panel);
  padding: 15px 18px; border-radius: 0 8px 8px 0; margin: 26px 0;
}
.note p { margin: 0; }
.note.warn { border-left-color: var(--amber); }

ul.plain { color: var(--dim); padding-left: 20px; max-width: 68ch; }
ul.plain li { margin: 8px 0; }

/* ---------------------------------------------------------------- footer -- */
footer.site { border-top: 1px solid var(--line); margin-top: 72px; padding: 30px 0 56px; }
footer.site .cols { display: flex; gap: 30px; flex-wrap: wrap; align-items: baseline; }
footer.site a { color: var(--dim); font-size: 14.5px; }
footer.site a:hover { color: var(--text); }
footer.site .disclaim {
  margin-top: 22px; color: var(--faint); font-size: 13px; max-width: 74ch; line-height: 1.55;
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }