/* =====================================================================
   Tema Dark Neón Futurista (HU-18) — Bootstrap 5 sobre variables CSS
   ===================================================================== */
:root {
  --bg-dark: #090c10;
  --card-dark: #111622;
  --card-dark-2: #161c2c;
  --neon-cyan: #00f3ff;
  --neon-magenta: #ff007f;
  --neon-green: #00ff88;
  --texto: #e6edf3;
  --texto-sec: #9aa4b2;
  --borde-suave: rgba(0, 243, 255, 0.18);
  --sidebar-ancho: 250px;
}

html, body { background: var(--bg-dark); color: var(--texto); }

body {
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", sans-serif;
  min-height: 100vh;
  background-image:
    radial-gradient(1100px 500px at 85% -10%, rgba(255, 0, 127, 0.07), transparent 60%),
    radial-gradient(900px 420px at -10% 110%, rgba(0, 243, 255, 0.06), transparent 60%);
  background-attachment: fixed;
}

/* ------------------------------------------------------------ Layout */
.app-layout { min-height: 100vh; }

.sidebar {
  position: fixed; inset: 0 auto 0 0;
  width: var(--sidebar-ancho);
  background: rgba(13, 17, 27, 0.92);
  border-right: 1px solid var(--borde-suave);
  backdrop-filter: blur(8px);
  display: flex; flex-direction: column;
  padding: 18px 14px;
  z-index: 1040;
}
.contenido { margin-left: var(--sidebar-ancho); min-height: 100vh; display: flex; flex-direction: column; }
.contenido-principal { flex: 1; padding: 22px 26px 40px; }

/* ---------------------------------------------------------- Sidebar */
.sidebar-brand { display: flex; align-items: center; gap: 12px; padding: 6px 8px 18px; text-decoration: none; }
.brand-glow {
  width: 40px; height: 40px; display: grid; place-items: center;
  font-weight: 800; font-size: 1.35rem; color: var(--neon-cyan);
  background: linear-gradient(145deg, rgba(0,243,255,.12), rgba(255,0,127,.12));
  border: 1px solid var(--borde-suave); border-radius: 12px;
  text-shadow: 0 0 12px rgba(0, 243, 255, .8);
  box-shadow: 0 0 18px rgba(0, 243, 255, .18) inset;
}
.brand-text { color: var(--texto); font-weight: 700; letter-spacing: .4px; font-size: 1.02rem;
              overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 170px; }

.sidebar-nav { flex: 1; display: flex; flex-direction: column; gap: 4px; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  color: var(--texto-sec); text-decoration: none;
  padding: 10px 12px; border-radius: 10px; font-size: .92rem;
  border: 1px solid transparent; transition: all .18s ease;
}
.nav-item i { font-size: 1.05rem; color: var(--texto-sec); transition: color .18s ease; }
.nav-item:hover { color: var(--texto); background: rgba(0, 243, 255, .06); }
.nav-item:hover i { color: var(--neon-cyan); }
.nav-item.active {
  color: var(--neon-cyan); background: rgba(0, 243, 255, .08);
  border-color: var(--borde-suave);
  box-shadow: 0 0 14px rgba(0, 243, 255, .12), inset 0 0 12px rgba(0, 243, 255, .05);
}
.nav-item.active i { color: var(--neon-cyan); text-shadow: 0 0 10px rgba(0, 243, 255, .7); }
.sidebar-footer { display: flex; flex-direction: column; gap: 4px; padding-top: 10px; border-top: 1px solid rgba(255,255,255,.06); }
.sidebar-footer .badge { margin-bottom: 8px; }

/* ----------------------------------------------------------- Topbar */
.topbar { display: flex; align-items: center; justify-content: space-between;
          padding: 16px 26px; border-bottom: 1px solid rgba(255,255,255,.06);
          background: rgba(13, 17, 27, .55); position: sticky; top: 0; z-index: 1020;
          backdrop-filter: blur(6px); }
.topbar-titulo { font-size: 1.18rem; font-weight: 700; margin: 0; letter-spacing: .3px; }
.topbar-acciones { display: flex; align-items: center; gap: 10px; }

.pie { text-align: center; color: var(--texto-sec); font-size: .8rem; padding: 14px; opacity: .75; }

/* ----------------------------------------------------------- Tarjetas */
.card-glow {
  background: var(--card-dark);
  border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 14px;
  box-shadow: 0 0 0 1px rgba(0, 243, 255, .04), 0 10px 28px rgba(0, 0, 0, .35);
}
.card-glow .card-header {
  background: var(--card-dark-2); border-bottom: 1px solid rgba(255,255,255,.06);
  font-weight: 600; letter-spacing: .3px;
}
.card-glow-accent { border-top: 2px solid var(--neon-cyan); }
.stat-card { position: relative; overflow: hidden; }
.stat-card .stat-valor { font-size: 1.55rem; font-weight: 800; letter-spacing: .3px; }
.stat-card .stat-etiqueta { color: var(--texto-sec); font-size: .82rem; text-transform: uppercase; letter-spacing: .8px; }
.stat-cyan .stat-valor { color: var(--neon-cyan); text-shadow: 0 0 14px rgba(0,243,255,.35); }
.stat-magenta .stat-valor { color: var(--neon-magenta); text-shadow: 0 0 14px rgba(255,0,127,.35); }
.stat-verde .stat-valor { color: var(--neon-green); text-shadow: 0 0 14px rgba(0,255,136,.35); }
.stat-gris .stat-valor { color: var(--texto); }

/* ----------------------------------------------------------- Botones */
.btn-neon {
  background: linear-gradient(135deg, rgba(0,243,255,.16), rgba(255,0,127,.16));
  color: var(--neon-cyan);
  border: 1px solid rgba(0, 243, 255, .45);
  font-weight: 600; letter-spacing: .3px;
  box-shadow: 0 0 12px rgba(0, 243, 255, .15);
  transition: all .18s ease;
}
.btn-neon:hover, .btn-neon:focus {
  color: #001a1c; background: var(--neon-cyan);
  box-shadow: 0 0 20px rgba(0, 243, 255, .55);
}
.btn-neon-magenta {
  background: rgba(255, 0, 127, .12); color: var(--neon-magenta);
  border: 1px solid rgba(255, 0, 127, .45); font-weight: 600;
}
.btn-neon-magenta:hover { color: #fff; background: var(--neon-magenta); box-shadow: 0 0 18px rgba(255,0,127,.5); }

/* ----------------------------------------------------------- Badges */
.badge-neon-trial { background: rgba(0,243,255,.1); color: var(--neon-cyan);
                    border: 1px solid rgba(0,243,255,.4); font-weight: 600; }
.badge-neon-activo { background: rgba(0,255,136,.1); color: var(--neon-green);
                     border: 1px solid rgba(0,255,136,.4); font-weight: 600; }
.badge-neon-vencido { background: rgba(255,0,127,.12); color: var(--neon-magenta);
                      border: 1px solid rgba(255,0,127,.45); font-weight: 600; }
.badge-neon-suspendido { background: rgba(255,193,7,.1); color: #ffc107;
                         border: 1px solid rgba(255,193,7,.4); font-weight: 600; }

.badge-estado-Pendiente  { background: rgba(255,193,7,.14); color: #ffd75e; border: 1px solid rgba(255,193,7,.45); }
.badge-estado-Validado   { background: rgba(0,255,136,.12); color: var(--neon-green); border: 1px solid rgba(0,255,136,.45); }
.badge-estado-Rechazado  { background: rgba(255,0,127,.12); color: var(--neon-magenta); border: 1px solid rgba(255,0,127,.5); }
.badge-estado-Cancelado  { background: rgba(160,170,185,.14); color: #aeb7c5; border: 1px solid rgba(160,170,185,.4); }
.badge-estado-Vencido    { background: rgba(255,122,0,.14); color: #ff9d4d; border: 1px solid rgba(255,122,0,.45); }
.badge-estado { font-weight: 600; letter-spacing: .3px; padding: .42em .7em; border-radius: 7px; }

/* ----------------------------------------------------------- Tablas */
.table-neon { color: var(--texto); border-color: rgba(255,255,255,.06); --bs-table-bg: transparent; }
.table-neon thead th {
  color: var(--texto-sec); text-transform: uppercase; font-size: .74rem; letter-spacing: .8px;
  border-bottom: 1px solid var(--borde-suave); background: rgba(0,243,255,.04);
}
.table-neon td, .table-neon th { border-color: rgba(255,255,255,.05); vertical-align: middle; }
.table-neon tbody tr:hover { background: rgba(0,243,255,.05); }
.table-neon .num { font-variant-numeric: tabular-nums; }

/* ----------------------------------------------------------- Formularios */
.form-control, .form-select, .input-group-text {
  background: var(--card-dark-2); border-color: rgba(255,255,255,.1); color: var(--texto);
}
.form-control:focus, .form-select:focus {
  background: var(--card-dark-2); color: var(--texto);
  border-color: var(--neon-cyan); box-shadow: 0 0 0 .2rem rgba(0,243,255,.15);
}
.form-label { color: var(--texto-sec); font-size: .85rem; letter-spacing: .3px; }
.form-text { color: #6f7a89; }
textarea.form-control { min-height: 90px; }

/* ----------------------------------------------------------- Modales */
.modal-content { background: var(--card-dark); border: 1px solid var(--borde-suave);
                 box-shadow: 0 0 40px rgba(0,243,255,.12); border-radius: 14px; }
.modal-header, .modal-footer { border-color: rgba(255,255,255,.07); }
.btn-close { filter: invert(1) grayscale(1); }

/* ----------------------------------------------------------- Otros */
.dropdown-menu { background: var(--card-dark-2); border-color: rgba(255,255,255,.1); }
.dropdown-item { color: var(--texto); }
.dropdown-item:hover { background: rgba(0,243,255,.08); color: var(--neon-cyan); }
.text-secondary { color: var(--texto-sec) !important; }
a { color: var(--neon-cyan); }
a:hover { color: #7ff9ff; }
hr { border-color: rgba(255,255,255,.08); opacity: 1; }
.nav-tabs { border-bottom-color: rgba(255,255,255,.1); }
.nav-tabs .nav-link { color: var(--texto-sec); border: none; padding: 10px 18px; }
.nav-tabs .nav-link:hover { color: var(--neon-cyan); }
.nav-tabs .nav-link.active {
  color: var(--neon-cyan); background: transparent;
  border-bottom: 2px solid var(--neon-cyan);
}
.link-wa { color: var(--neon-green); text-decoration: none; }

/* Scrollbar futurista */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: rgba(0,243,255,.25); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,243,255,.45); }

/* Números tabulares para tablas de dinero */
.mono { font-variant-numeric: tabular-nums; }

/* Paneles de comparación del cotizador de calcos */
.card-orientacion { position: relative; transition: transform .15s ease; }
.card-orientacion.optimo { border-color: rgba(0,255,136,.5);
  box-shadow: 0 0 22px rgba(0,255,136,.14); }
.card-orientacion.optimo::after {
  content: "ÓPTIMO"; position: absolute; top: 12px; right: 12px;
  font-size: .68rem; font-weight: 800; letter-spacing: 1px; color: var(--neon-green);
  background: rgba(0,255,136,.12); border: 1px solid rgba(0,255,136,.5);
  padding: 3px 9px; border-radius: 7px;
}

/* Responsive: sidebar colapsable */
@media (max-width: 900px) {
  .sidebar { width: 76px; padding: 14px 8px; }
  .brand-text, .nav-item span { display: none; }
  .nav-item { justify-content: center; padding: 12px; }
  .contenido { margin-left: 76px; }
}
@media print { .sidebar, .topbar, .pie, .btn { display: none !important; } }