/* Estilos compartidos de las guias de contenido (/trading-sinteticos/, /instrumentos/..., etc.).
   Antes cada pagina llevaba su propio <style>; ahora todas enlazan este fichero para
   que se vean igual y una pagina nueva solo tenga que escribir contenido. */

:root {
  --bg: #05060c;
  --panel: #0c0f1c;
  --panel-2: #11152a;
  --line: #ffffff1c;
  --text: #f4f6ff;
  --muted: #9aa5c5;
  --accent: #ff3d2e;
  --accent-2: #ff7a18;
  --accent-3: #ffb800;
  --ok: #2bffa0;
  --font-display: "Manrope", sans-serif;
  --font-body: "Space Grotesk", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 15% -10%, #1a1024 0%, transparent 60%),
    radial-gradient(900px 500px at 95% 0%, #2a1206 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
}

a { color: var(--accent-2); }

/* ---------- cabecera ---------- */
header.top { border-bottom: 1px solid var(--line); padding: 14px 0; }
.wrap { width: min(920px, 92vw); margin: 0 auto; }
.top-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand img { width: 34px; height: 34px; }
.brand b { font-family: var(--font-display); letter-spacing: .5px; }
.brand b span { color: var(--accent-2); }
.top-row nav a { color: var(--muted); text-decoration: none; margin-left: 16px; font-size: .92rem; }
.top-row nav a:hover { color: var(--text); }

/* ---------- contenido ---------- */
.crumbs { font-size: .82rem; color: var(--muted); margin: 22px 0 0; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--text); }
h1 { font-family: var(--font-display); font-size: clamp(1.9rem, 4.4vw, 2.9rem); line-height: 1.15; margin: 10px 0 8px; }
h2 { font-family: var(--font-display); font-size: clamp(1.35rem, 2.6vw, 1.75rem); margin: 42px 0 10px; }
h3 { font-family: var(--font-display); font-size: 1.12rem; margin: 26px 0 6px; }
.meta { color: var(--muted); font-size: .86rem; margin-bottom: 26px; }
.lead { font-size: 1.06rem; color: #dfe5fb; }
ul, ol { padding-left: 22px; }
li { margin: 6px 0; }

table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: .93rem; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: var(--panel-2); font-family: var(--font-display); }

code { background: #ffffff12; padding: 2px 6px; border-radius: 6px; font-size: .9em; }

.note {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent-3);
  border-radius: 12px;
  padding: 14px 18px;
  margin: 22px 0;
  color: #e8ecff;
}
.note.risk { border-left-color: var(--accent); }
.note.formula { border-left-color: var(--ok); font-family: var(--font-display); }

.card {
  background: linear-gradient(170deg, #12172c, #0b0e1c);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 20px;
  margin: 22px 0;
}

.cta {
  display: inline-block;
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  color: #10121c;
  font-weight: 800;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 12px;
  font-family: var(--font-display);
}

/* Rejilla de dos columnas para "a favor / en contra" o comparativas cortas */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 22px 0; }
.grid2 .card { margin: 0; }
@media (max-width: 720px) { .grid2 { grid-template-columns: 1fr; } }

.faq details { border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin: 10px 0; background: var(--panel); }
.faq summary { cursor: pointer; font-weight: 700; font-family: var(--font-display); }
.faq p { margin: 10px 0 0; color: #d8dff5; }

/* Enlaces internos al final de cada guia */
.sigue { margin: 26px 0 0; padding: 0; list-style: none; }
.sigue li { border-bottom: 1px solid var(--line); padding: 10px 0; }
.sigue a { font-weight: 700; text-decoration: none; }
.sigue span { display: block; color: var(--muted); font-size: .88rem; font-weight: 400; }

footer.site { border-top: 1px solid var(--line); margin-top: 60px; padding: 26px 0 40px; color: var(--muted); font-size: .88rem; }
footer.site a { color: var(--muted); }