/* ─────────────────────────────────────────
   ESTILOS COMPARTIDOS — index.html + calculadora.html
   Solo reglas 100% idénticas entre ambas páginas.
   Los estilos propios de cada página (mismos nombres de
   clase con valores distintos) viven en index.css / calculadora.css
   para no alterar la cascada ni el aspecto visual.
───────────────────────────────────────── */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: #070a04;
  color: white;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Orbes de fondo — base común */
.orb {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(60px);
}

@keyframes drift1 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(50px, 70px) scale(1.08); }
}
@keyframes drift2 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(-45px, -55px) scale(1.06); }
}
@keyframes ken-burns {
  from { transform: scale(1)    translate(0,    0);    }
  to   { transform: scale(1.12) translate(-2%, -1.5%); }
}
@keyframes ring-spin {
  to { transform: rotate(360deg); }
}
@keyframes btn-shimmer {
  0%   { background-position: 0% center; }
  100% { background-position: 300% center; }
}

/* Texto gradiente */
.text-grad {
  background: linear-gradient(120deg, #6e7e28 0%, #d4e87a 50%, #6e7e28 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Anillo de foto giratorio */
.ring-spinner {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #6e7e28 0%, #d4e87a 30%, #3a4a15 55%, #6e7e28 80%, #d4e87a 100%);
  animation: ring-spin 7s linear infinite;
}

/* ─────────────────────────────────────────
   ACORDEÓN (usado en calculadora.html e index.html)
───────────────────────────────────────── */
.accordion-item {
  border-radius: 16px;
  border: 1px solid rgba(110,126,40,0.18);
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}
.accordion-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 700;
  font-size: 0.9rem;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  user-select: none;
  transition: background 0.18s;
}
.accordion-item summary::-webkit-details-marker { display: none; }
.accordion-item summary:hover { background: rgba(110,126,40,0.07); }
.accordion-item summary .chevron {
  flex-shrink: 0;
  width: 18px; height: 18px;
  color: #6e7e28;
  transition: transform 0.25s ease;
}
.accordion-item[open] summary .chevron { transform: rotate(180deg); }
.accordion-item[open] summary { background: rgba(110,126,40,0.07); }
.accordion-body {
  padding: 0 20px 18px;
  border-top: 1px solid rgba(110,126,40,0.1);
}

/* ─────────────────────────────────────────
   SCROLL-REVEAL (usado en index.html)
───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1), transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
}