/* ═══════════════════════════════════════════════════════════
   LOTAJE LAB — terminal de riesgo
   Paleta: tinta profunda + oro XAU + señales verde/rojo
   ═══════════════════════════════════════════════════════════ */

:root {
  --ink-0: #07090f;
  --ink-1: #0b0e16;
  --ink-2: #10141f;
  --ink-3: #171c2b;
  --line: rgba(200, 214, 240, 0.09);
  --line-strong: rgba(200, 214, 240, 0.18);
  --text-1: #e9edf6;
  --text-2: #9aa5bd;
  --text-3: #5d6880;
  --gold: #f2b63c;
  --gold-soft: rgba(242, 182, 60, 0.12);
  --gold-line: rgba(242, 182, 60, 0.35);
  --up: #46d68a;
  --up-soft: rgba(70, 214, 138, 0.12);
  --down: #f4756b;
  --down-soft: rgba(244, 117, 107, 0.1);
  --radius: 14px;
  --font-display: "Fraunces", Georgia, serif;
  --font-ui: "Instrument Sans", -apple-system, sans-serif;
  --font-num: "IBM Plex Mono", ui-monospace, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--ink-0);
  color: var(--text-1);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* fondo: rejilla de terminal + resplandor dorado superior */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(200, 214, 240, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 214, 240, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: "";
  position: fixed;
  top: -30vh;
  left: 50%;
  transform: translateX(-50%);
  width: 120vw;
  height: 60vh;
  background: radial-gradient(ellipse at center, rgba(242, 182, 60, 0.07), transparent 65%);
  pointer-events: none;
  z-index: 0;
}

main, header.site, footer.site { position: relative; z-index: 1; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ── Header ───────────────────────────────────────── */
header.site {
  border-bottom: 1px solid var(--line);
  background: rgba(7, 9, 15, 0.82);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--text-1);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.01em;
}
.brand .tick { color: var(--gold); font-family: var(--font-num); font-size: 0.9rem; }
.nav-links { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-links a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.82rem;
  padding: 7px 12px;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text-1); background: var(--ink-3); }
.nav-links a.active { color: var(--gold); background: var(--gold-soft); }

/* ── Hero ─────────────────────────────────────────── */
.hero { padding: 72px 0 40px; }
.hero .kicker {
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero .kicker::before { content: ""; width: 28px; height: 1px; background: var(--gold-line); }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 550;
  line-height: 1.08;
  letter-spacing: -0.015em;
  max-width: 720px;
}
.hero h1 em { font-style: italic; color: var(--gold); }
.hero .lede {
  margin-top: 20px;
  max-width: 640px;
  color: var(--text-2);
  font-size: 1.06rem;
}
.hero .lede strong { color: var(--text-1); font-weight: 600; }

/* animación de entrada escalonada */
.reveal { opacity: 0; transform: translateY(14px); animation: rise 0.7s cubic-bezier(0.2, 0.65, 0.25, 1) forwards; }
.reveal:nth-child(2) { animation-delay: 0.08s; }
.reveal:nth-child(3) { animation-delay: 0.16s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* ── Calculadora ──────────────────────────────────── */
.calc {
  margin: 40px 0 64px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, var(--ink-2), var(--ink-1));
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.7);
}
.calc-inputs { padding: 34px; border-right: 1px solid var(--line); }
.calc-inputs h2 {
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 24px;
}
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-2);
  margin-bottom: 7px;
  font-weight: 500;
}
.field label .hint { color: var(--text-3); font-weight: 400; }
.field input, .field select {
  width: 100%;
  background: var(--ink-0);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  color: var(--text-1);
  font-family: var(--font-num);
  font-size: 1rem;
  padding: 12px 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%239aa5bd' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}
.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--gold-line);
  box-shadow: 0 0 0 3px var(--gold-soft);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.risk-chips { display: flex; gap: 8px; margin-top: 8px; }
.risk-chips button {
  font-family: var(--font-num);
  font-size: 0.78rem;
  background: var(--ink-3);
  color: var(--text-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.risk-chips button:hover { border-color: var(--gold-line); color: var(--gold); }
.risk-chips button.on { background: var(--gold-soft); border-color: var(--gold-line); color: var(--gold); }

/* panel de resultados */
.calc-results {
  padding: 34px;
  background:
    radial-gradient(circle at 85% 0%, rgba(242, 182, 60, 0.08), transparent 55%),
    var(--ink-1);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
}
.res-main .res-label, .res-grid .res-label {
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 6px;
}
.res-main .res-value {
  font-family: var(--font-num);
  font-size: clamp(2.6rem, 5vw, 3.6rem);
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.res-main .res-unit { font-size: 1rem; color: var(--text-2); margin-left: 8px; font-weight: 400; }
.res-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.res-grid .res-value {
  font-family: var(--font-num);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-1);
  font-variant-numeric: tabular-nums;
}
.res-grid .res-value.up { color: var(--up); }
.res-grid .res-value.down { color: var(--down); }
.res-note { font-size: 0.78rem; color: var(--text-3); border-top: 1px solid var(--line); padding-top: 14px; }
.res-note .live { color: var(--up); }

/* flash sutil al recalcular */
@keyframes flash { 0% { opacity: 0.35; } 100% { opacity: 1; } }
.res-value.tick { animation: flash 0.35s ease-out; }

/* ── CTA afiliado ─────────────────────────────────── */
.cta {
  margin: 0 0 72px;
  border: 1px solid var(--gold-line);
  border-radius: var(--radius);
  padding: 30px 34px;
  background:
    radial-gradient(circle at 0% 50%, rgba(242, 182, 60, 0.12), transparent 45%),
    var(--ink-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 550; margin-bottom: 6px; }
.cta p { color: var(--text-2); font-size: 0.9rem; max-width: 520px; }
.cta .btn {
  display: inline-block;
  background: var(--gold);
  color: #14100a;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 10px;
  white-space: nowrap;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 8px 30px -8px rgba(242, 182, 60, 0.5);
}
.cta .btn:hover { transform: translateY(-2px); box-shadow: 0 14px 40px -8px rgba(242, 182, 60, 0.6); }
.cta .disclosure { font-size: 0.72rem; color: var(--text-3); width: 100%; margin-top: 4px; }

/* ── Contenido educativo ──────────────────────────── */
.content { max-width: 720px; margin-bottom: 72px; }
.content h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 550;
  margin: 48px 0 16px;
  letter-spacing: -0.01em;
}
.content h3 { font-size: 1.1rem; margin: 28px 0 10px; }
.content p { color: var(--text-2); margin-bottom: 14px; }
.content p strong, .content li strong { color: var(--text-1); }
.content ul, .content ol { color: var(--text-2); margin: 0 0 14px 22px; }
.content li { margin-bottom: 6px; }
.formula {
  font-family: var(--font-num);
  font-size: 0.92rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 18px 0;
  color: var(--text-1);
  overflow-x: auto;
}
.example {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 26px;
  margin: 18px 0;
}
.example .tag {
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 10px;
}

/* tabla */
table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.88rem; }
th {
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-strong);
}
td { padding: 10px 12px; border-bottom: 1px solid var(--line); color: var(--text-2); font-variant-numeric: tabular-nums; }
td.num { font-family: var(--font-num); }
.table-scroll { overflow-x: auto; }

/* ── FAQ ──────────────────────────────────────────── */
.faq { max-width: 720px; margin-bottom: 72px; }
.faq h2 { font-family: var(--font-display); font-size: 1.7rem; font-weight: 550; margin-bottom: 20px; }
.faq details {
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 10px;
  background: var(--ink-1);
  overflow: hidden;
}
.faq summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-num); color: var(--gold); font-size: 1.1rem; transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 20px 16px; color: var(--text-2); font-size: 0.92rem; }

/* ── Otras herramientas ───────────────────────────── */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-bottom: 72px; }
.tool-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--ink-1);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
  display: block;
}
.tool-card:hover { border-color: var(--gold-line); transform: translateY(-3px); }
.tool-card .t-icon { font-family: var(--font-num); color: var(--gold); font-size: 0.8rem; letter-spacing: 0.1em; display: block; margin-bottom: 10px; }
.tool-card h3 { color: var(--text-1); font-size: 1rem; margin-bottom: 6px; }
.tool-card p { color: var(--text-3); font-size: 0.82rem; line-height: 1.5; }
.section-title { font-family: var(--font-display); font-size: 1.7rem; font-weight: 550; margin-bottom: 20px; }

/* ── Footer ───────────────────────────────────────── */
footer.site { border-top: 1px solid var(--line); padding: 40px 0 48px; background: var(--ink-1); }
footer.site .cols { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; margin-bottom: 28px; }
footer.site nav { display: flex; flex-direction: column; gap: 8px; }
footer.site nav a { color: var(--text-2); text-decoration: none; font-size: 0.85rem; }
footer.site nav a:hover { color: var(--gold); }
footer.site .col-title { font-family: var(--font-num); font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-3); margin-bottom: 12px; }
.disclaimer {
  font-size: 0.72rem;
  color: var(--text-3);
  line-height: 1.6;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

/* ── Gráfica interés compuesto ────────────────────── */
.chart-box { grid-column: 1 / -1; padding: 0 34px 30px; }
#growthChart { width: 100%; height: 180px; display: block; }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 820px) {
  .calc { grid-template-columns: 1fr; }
  .calc-inputs { border-right: none; border-bottom: 1px solid var(--line); padding: 26px 22px; }
  .calc-results { padding: 26px 22px; }
  .chart-box { padding: 0 22px 24px; }
  .hero { padding: 48px 0 28px; }
  .cta { padding: 24px 22px; }
  .nav-links { display: none; }
}