/* ============================================================
   LAYOUT · shell de la suite (rail + topbar + contenido)
   ============================================================ */

.app {
  display: grid;
  grid-template-columns: var(--rail-w) 1fr;
  min-height: 100dvh;
  transition: grid-template-columns var(--dur-2) var(--ease);
}
.app[data-rail="collapsed"] { grid-template-columns: var(--rail-w-collapsed) 1fr; }

/* ---------------------------------------------------------- */
/*  RAIL LATERAL                                              */
/* ---------------------------------------------------------- */
.rail {
  position: sticky;
  top: 0;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, var(--surface) 0%, var(--void) 100%);
  border-right: 1px solid var(--line);
  z-index: 40;
  overflow: hidden;
}

.rail__brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  height: var(--topbar-h);
  padding: 0 var(--s-5);
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
.rail__mark {
  width: 34px; height: 34px;
  color: var(--text);
  flex-shrink: 0;
}
.rail__mark svg { width: 100%; height: 100%; }
/* Variante con logo en imagen, adaptada al tema */
.rail__mark--img {
  width: 40px; height: 40px;
  display: grid; place-items: center;
}
.rail__mark--img img {
  grid-area: 1 / 1;
  width: 100%; height: 100%;
  object-fit: contain;
}
/* En tema oscuro (rail oscuro) -> emblema claro; en tema claro -> emblema navy */
.rail__mark--img .mark-on-light { display: none; }
.rail__mark--img .mark-on-dark  { display: block; }
[data-theme="light"] .rail__mark--img .mark-on-dark  { display: none; }
[data-theme="light"] .rail__mark--img .mark-on-light { display: block; }
.rail__wordmark { display: flex; flex-direction: column; line-height: 1; overflow: hidden; }
.rail__wordmark b {
  font-family: var(--font-display);
  font-size: 0.95rem; font-weight: 600; letter-spacing: 0.06em;
  color: var(--text);
}
.rail__wordmark span {
  font-family: var(--font-mono);
  font-size: 0.6rem; font-weight: 500; letter-spacing: 0.42em;
  color: var(--text-3); margin-top: 3px;
}

.rail__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--s-5) var(--s-3);
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
}
.rail__group { display: flex; flex-direction: column; gap: 2px; }
.rail__group-label {
  padding: 0 var(--s-3) var(--s-2);
  white-space: nowrap;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: 10px var(--s-3);
  border-radius: var(--r-md);
  color: var(--text-2);
  font-size: var(--t-sm);
  font-weight: 500;
  position: relative;
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
  white-space: nowrap;
}
.nav-item__icon {
  width: 20px; height: 20px; flex-shrink: 0;
  color: var(--text-3);
  transition: color var(--dur-1) var(--ease);
}
.nav-item__icon svg { width: 100%; height: 100%; stroke-width: 1.6; }
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item:hover .nav-item__icon { color: var(--text-2); }

.nav-item.is-active {
  background: var(--surface-3);
  color: var(--text);
}
.nav-item.is-active .nav-item__icon { color: var(--electric-bright); }
/* indicador de precisión: tick eléctrico a la izquierda */
.nav-item.is-active::before {
  content: "";
  position: absolute;
  left: -3px; top: 50%; transform: translateY(-50%);
  width: 3px; height: 18px;
  background: var(--electric);
  border-radius: var(--r-pill);
}

.nav-item__soon {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.58rem; letter-spacing: 0.08em;
  color: var(--text-faint);
  border: 1px solid var(--line);
  padding: 2px 6px; border-radius: var(--r-pill);
}

.rail__footer {
  flex-shrink: 0;
  padding: var(--s-3);
  border-top: 1px solid var(--line);
  display: flex;
  gap: var(--s-2);
}

/* Estado colapsado: ocultar textos, centrar iconos */
.app[data-rail="collapsed"] .rail__wordmark,
.app[data-rail="collapsed"] .rail__group-label,
.app[data-rail="collapsed"] .nav-item span,
.app[data-rail="collapsed"] .nav-item__soon,
.app[data-rail="collapsed"] .rail__footer .btn__label { display: none; }
.app[data-rail="collapsed"] .rail__brand { justify-content: center; padding: 0; }
.app[data-rail="collapsed"] .nav-item { justify-content: center; padding: 10px; }
.app[data-rail="collapsed"] .rail__footer { flex-direction: column; }

/* ---------------------------------------------------------- */
/*  ÁREA PRINCIPAL                                            */
/* ---------------------------------------------------------- */
.main { display: flex; flex-direction: column; min-width: 0; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: var(--s-4);
  padding: 0 var(--s-8);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar__left { display: flex; align-items: center; gap: var(--s-3); min-width: 0; }
.topbar__crumb {
  font-family: var(--font-display);
  font-size: var(--t-md); font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar__spacer { flex: 1; }
.topbar__clock {
  display: flex; flex-direction: column; align-items: flex-end;
  line-height: 1.2;
}
.topbar__time { font-family: var(--font-mono); font-size: var(--t-md); font-weight: 500; font-variant-numeric: tabular-nums; }
.topbar__date { font-size: var(--t-xs); color: var(--text-3); text-transform: capitalize; }

.content {
  flex: 1;
  padding: var(--s-8);
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  animation: view-in var(--dur-3) var(--ease-out) both;
}

/* ---------------------------------------------------------- */
/*  MÓVIL / TABLET                                            */
/* ---------------------------------------------------------- */
.rail__scrim { display: none; }
.menu-toggle { display: none; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }

  .rail {
    position: fixed;
    top: 0; left: 0;
    width: min(84vw, var(--rail-w));
    transform: translateX(-102%);
    transition: transform var(--dur-2) var(--ease);
    box-shadow: var(--shadow-lg);
  }
  .app[data-drawer="open"] .rail { transform: translateX(0); }

  .rail__scrim {
    display: block;
    position: fixed; inset: 0;
    background: rgba(4, 7, 12, 0.55);
    backdrop-filter: blur(2px);
    opacity: 0; visibility: hidden;
    transition: opacity var(--dur-2) var(--ease), visibility var(--dur-2);
    z-index: 39;
  }
  .app[data-drawer="open"] .rail__scrim { opacity: 1; visibility: visible; }

  .menu-toggle { display: inline-flex; }
  .topbar { padding: 0 var(--s-5); }
  .content { padding: var(--s-5); }

  /* en móvil el rail nunca aparece colapsado, siempre completo dentro del drawer */
  .app[data-rail="collapsed"] .rail__wordmark,
  .app[data-rail="collapsed"] .rail__group-label,
  .app[data-rail="collapsed"] .nav-item span,
  .app[data-rail="collapsed"] .nav-item__soon,
  .app[data-rail="collapsed"] .btn__label { display: revert; }
  .app[data-rail="collapsed"] .nav-item { justify-content: flex-start; padding: 10px var(--s-3); }
}

@media (max-width: 520px) {
  .topbar__clock { display: none; }
  .content { padding: var(--s-4); }
}