/* Shell de app COMPARTIDO: el riel de la izquierda (desplegable, monocromo) +
   la zona principal desplazada. Lo usan todas las páginas "de app" para que la
   web se sienta como una sola aplicación (mismo riel del asesor/calculadoras). */

:root { --rail-w: 226px; --rail-wc: 64px; --rail-ink: #55634f; }

.rail {
  position: fixed; left: 0; top: 0; bottom: 0; width: var(--rail-w); z-index: 30;
  background: var(--crema-tarjeta); border-right: 1px solid rgba(47, 93, 58, 0.12);
  display: flex; flex-direction: column; padding: 12px 10px; gap: 2px; transition: width 0.18s ease; overflow: hidden;
}
html.rail-collapsed .rail { width: var(--rail-wc); }
.rail-top { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-bottom: 8px; padding: 2px 4px; }
.rail-brand { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--verde-texto); min-width: 0; }
.rail-brand img { width: 32px; height: 32px; flex: 0 0 auto; }
.rail-brand-name { font-family: var(--serif); font-weight: 600; font-size: 1.28rem; }
.rail-toggle { flex: 0 0 auto; width: 34px; height: 34px; border: 0; background: transparent; color: var(--rail-ink); cursor: pointer; border-radius: 10px; display: grid; place-items: center; }
.rail-toggle:hover { background: var(--verde-suave); }
.rail-toggle svg { width: 20px; height: 20px; }
.rail-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; margin-top: 6px; }
.rail-bottom { display: flex; flex-direction: column; gap: 2px; }
.rail-item {
  display: flex; align-items: center; gap: 13px; padding: 11px 12px; border-radius: 12px;
  color: var(--rail-ink); text-decoration: none; font-size: 1.02rem; font-weight: 500;
  font-family: var(--sans); border: 0; background: transparent; cursor: pointer; width: 100%; text-align: left; white-space: nowrap;
}
.rail-item:hover { background: var(--verde-suave); }
.rail-item.activo { background: var(--verde-oscuro); color: #fff; }
.rail-ico { flex: 0 0 auto; display: grid; place-items: center; width: 23px; height: 23px; }
.rail-ico svg { width: 22px; height: 22px; }
.rail-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
html.rail-collapsed .rail-label, html.rail-collapsed .rail-brand-name { display: none; }
html.rail-collapsed .rail-top { flex-direction: column; gap: 8px; justify-content: center; }
html.rail-collapsed .rail-brand { gap: 0; justify-content: center; }
html.rail-collapsed .rail-item { justify-content: center; padding: 10px 0; gap: 0; }

/* Zona principal (envuelve <main> + <footer>): desplazada por el riel. */
.app-main { margin-left: var(--rail-w); min-height: 100vh; transition: margin-left 0.18s ease; }
html.rail-collapsed .app-main { margin-left: var(--rail-wc); }
/* En estas páginas el header viejo desaparece: el <main> empieza arriba. */
.app-main > main > .bloque:first-child,
.app-main > main > section:first-child { padding-top: 32px; }

@media (max-width: 760px) {
  .rail, html.rail-collapsed .rail {
    top: auto; right: 0; bottom: 0; width: auto; height: 58px; flex-direction: row;
    justify-content: space-around; align-items: center; border-right: 0;
    border-top: 1px solid rgba(47, 93, 58, 0.14); padding: 0 6px; gap: 0; transition: none;
  }
  .rail-top { display: none; }
  .rail-nav, .rail-bottom { display: contents; }
  .rail-item, html.rail-collapsed .rail-item { width: 42px; height: 42px; padding: 0; justify-content: center; }
  .rail-label { display: none; }
  .app-main, html.rail-collapsed .app-main { margin-left: 0; margin-bottom: 58px; }
}