/* =============================================================================
   layout.css — shell del panel admin: barra lateral + área de contenido
   ============================================================================= */

.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: 100%;
}

/* ---------- Barra lateral ---------- */

.sidebar {
  background: var(--bg);
  color: var(--text-invert);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 1.1rem 1rem .85rem;
  border-bottom: 1px solid var(--border-dark);
}

.sidebar-brand .name {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -.01em;
}

.sidebar-brand .role {
  font-size: .75rem;
  color: var(--text-invert-2);
  margin-top: .15rem;
}

.branch-picker {
  margin: .75rem .75rem .25rem;
}

.branch-picker label {
  display: block;
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-invert-2);
  margin-bottom: .3rem;
}

.branch-picker select {
  width: 100%;
  background: var(--bg-2);
  color: var(--text-invert);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: .5rem .6rem;
}

.branch-picker select:disabled { opacity: .65; cursor: not-allowed; }

.nav { padding: .5rem .5rem 1rem; flex: 1; }

.nav-group + .nav-group { margin-top: .15rem; }

.nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .6rem .65rem;
  border: 0;
  background: transparent;
  color: var(--text-invert);
  border-radius: var(--radius);
  text-align: left;
  font-size: .92rem;
}

.nav-item:hover { background: var(--bg-2); }

.nav-item[aria-current="page"] {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.nav-item .ico { width: 1.2rem; text-align: center; opacity: .9; }
.nav-item .chev { margin-left: auto; font-size: .7rem; opacity: .6; transition: transform .15s; }
.nav-group[data-open="true"] .chev { transform: rotate(90deg); }

.nav-sub { display: none; margin: .15rem 0 .35rem .95rem; padding-left: .6rem;
           border-left: 1px solid var(--border-dark); }
.nav-group[data-open="true"] .nav-sub { display: block; }

.nav-sub .nav-item { font-size: .86rem; padding: .45rem .6rem; }

.sidebar-foot {
  padding: .6rem .75rem 1rem;
  border-top: 1px solid var(--border-dark);
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

/* ---------- Área de contenido ---------- */

.main { overflow-y: auto; background: var(--surface); }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  padding: .85rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topbar .crumb { font-size: .78rem; color: var(--text-muted); }

.content { padding: 1.5rem; max-width: 1400px; }

/* ---------- Rejillas de tarjetas ---------- */

.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

/* ---------- Pantalla de acceso ---------- */

.login-screen {
  height: 100%;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, #0f172a, #1e293b);
  padding: 1.5rem;
}

.login-card {
  background: var(--surface-2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  width: min(460px, 100%);
}

.login-card h1 { text-align: center; margin-bottom: .25rem; }
.login-card .sub { text-align: center; color: var(--text-muted);
                   font-size: .88rem; margin-bottom: 1.5rem; }

.mode-switch { display: flex; gap: .5rem; margin-bottom: 1.25rem; }

.mode-switch button {
  flex: 1;
  padding: .7rem;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  font-weight: 600;
  color: var(--text-muted);
}

.mode-switch button[aria-pressed="true"] {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* Teclado numérico del PIN */
.pin-display {
  display: flex; justify-content: center; gap: .6rem; margin: .5rem 0 1.25rem;
}
.pin-dot {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid var(--border); background: transparent;
}
.pin-dot.filled { background: var(--primary); border-color: var(--primary); }

.keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; }
.keypad button {
  height: 68px;
  font-size: 1.5rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface-2);
  border-radius: var(--radius);
}
.keypad button:active { background: var(--surface); transform: scale(.97); }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w);
             transform: translateX(-100%); transition: transform .2s; z-index: 40; }
  .shell[data-menu="open"] .sidebar { transform: none; }
  .content { padding: 1rem; }
}