/* Armazón: barra lateral (escritorio) o inferior (celular), cabecera y contenedor de vistas.
   Un solo breakpoint de celular: 860 px. */

[hidden] { display: none !important; }

html {
  -webkit-tap-highlight-color: transparent;
  scroll-padding-top: 64px;   /* lo que se desplaza con scrollIntoView no queda bajo la cabecera */
}

/* ============================================================
   ESCRITORIO
   ============================================================ */
.app { display: flex; min-height: 100vh; }

/* --- Barra lateral --- */
.rail {
  position: sticky; top: 0;
  width: var(--rail-w); flex: 0 0 var(--rail-w); height: 100vh;
  display: flex; flex-direction: column;
  background: var(--rail); color: var(--rail-ink);
}

.rail-marca {
  display: flex; flex-direction: column; align-items: stretch; gap: 9px;
  padding: 14px 16px 13px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.rail-logo { width: 100%; padding: 9px 12px; border-radius: var(--r-md); }
.rail-prod { font-family: var(--mono); font-size: 9.5px; letter-spacing: .26em; color: var(--rail-ink-2); text-align: center; }

.rail-nav { flex: 1; display: flex; flex-direction: column; gap: 2px; padding: 12px 10px; overflow-y: auto; }

.navbtn {
  display: flex; align-items: center; gap: 10px;
  width: 100%; height: 40px; padding: 0 10px 0 9px;
  border: 0; border-left: 3px solid transparent; border-radius: var(--r-sm);
  background: none; color: var(--rail-ink-2);
  font-size: 13px; font-weight: 500; text-align: left;
  cursor: pointer; touch-action: manipulation; -webkit-user-select: none; user-select: none;
  transition: background .12s, color .12s;
}
@media (hover: hover) { .navbtn:hover { background: var(--rail-2); color: var(--rail-ink); } }
.navbtn[aria-current="true"] { background: var(--rail-2); color: #fff; border-left-color: var(--sun); }
.navbtn svg { flex: none; opacity: .85; }
.navbtn[aria-current="true"] svg { opacity: 1; }
.navbtn-l { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Pastilla de contador: la usan la navegación y las listas que muestran no leídos. */
.navbtn-badge {
  display: inline-grid; place-items: center; flex: none;
  min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px;
  background: var(--sun); color: #16283D;
  font-family: var(--mono); font-size: 10.5px; font-weight: 600; line-height: 1;
}
.navbtn .navbtn-badge { margin-left: auto; }

.rail-pie { padding: 12px 14px 16px; border-top: 1px solid rgba(255,255,255,.07); font-size: 11px; color: var(--rail-ink-2); }
.rail-usuario { display: flex; align-items: center; gap: 9px; margin-bottom: 10px; }
.rail-av {
  display: grid; place-items: center; flex: none;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--rail-2); color: var(--rail-ink);
  font-family: var(--mono); font-size: 10.5px; font-weight: 600;
}
.rail-nombre { color: var(--rail-ink); font-size: 12px; font-weight: 600; }
.rail-demo { font-size: 10.5px; }

/* --- Principal --- */
.principal { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.cabecera {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 16px;
  height: 56px; padding: 0 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.cabecera-marca { display: none; }
.cabecera-fecha { min-width: 0; font-size: 13px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cabecera-fecha::first-letter { text-transform: uppercase; }
.reloj-hora { font-variant-numeric: tabular-nums; }
.cabecera-der { display: flex; align-items: center; gap: 8px; flex: none; margin-left: auto; }

#vistas { width: 100%; max-width: 1320px; padding: 24px 28px 48px; }

/* ============================================================
   CELULAR (<= 860 px): barra inferior y cabecera fija
   ============================================================ */
@media (max-width: 860px) {
  html, body { overscroll-behavior-y: contain; }
  html {
    scroll-padding-top: calc(64px + env(safe-area-inset-top, 0px));
    scroll-padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }
  .app { flex-direction: column; }

  /* --- Barra inferior (reutiliza .rail y #nav) --- */
  .rail {
    position: fixed; top: auto; left: 0; right: 0; bottom: 0; z-index: 40;
    width: auto; flex: none;
    height: calc(64px + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    border-top: 1px solid rgba(255,255,255,.08);
  }
  .rail-marca, .rail-pie, .solo-escritorio { display: none; }
  .rail-nav {
    display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 0;
    padding: 0 env(safe-area-inset-right, 0px) 0 env(safe-area-inset-left, 0px);
    overflow: visible;
  }
  .navbtn {
    position: relative;
    flex-direction: column; justify-content: center; gap: 4px;
    width: auto; min-width: 0; height: 64px; padding: 6px 2px 5px;
    border-left: 0; border-radius: 0;
    font-size: 11px; line-height: 1.1; text-align: center;
  }
  .navbtn svg { width: 22px; height: 22px; }
  .navbtn-l { max-width: 100%; }
  .navbtn[aria-current="true"] { background: none; box-shadow: inset 0 2px 0 var(--sun); }
  .navbtn .navbtn-badge {
    position: absolute; top: 6px; left: calc(50% + 6px);
    min-width: 16px; height: 16px; padding: 0 4px; margin: 0;
    font-size: 9.5px;
  }

  /* --- Cabecera fija: logo, reloj, tema y ajustes --- */
  .cabecera {
    position: fixed; top: env(safe-area-inset-top, 0px); left: 0; right: 0;
    gap: 10px;
    padding: 0 max(16px, env(safe-area-inset-right, 0px)) 0 max(16px, env(safe-area-inset-left, 0px));
  }
  .cabecera::before {   /* tapa la zona de la muesca, arriba de la cabecera */
    content: ""; position: absolute; left: 0; right: 0; bottom: 100%;
    height: env(safe-area-inset-top, 0px);
    background: var(--surface);
  }
  .cabecera-marca { display: flex; align-items: center; flex: none; }
  .cabecera-logo { width: 122px; padding: 4px 6px; border-radius: 5px; }
  .reloj-fecha { display: none; }   /* no entra al lado del logo: queda la hora */
  .principal { padding-top: calc(56px + env(safe-area-inset-top, 0px)); }

  #vistas {
    padding: 16px max(16px, env(safe-area-inset-right, 0px)) calc(88px + env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
  }
}