:root {
    --bg: #f1f5f9;
    --bg-sidebar: #ffffff;
    --surface: #ffffff;
    --surface-alt: #f8fafc;
    --texto: #0f172a;
    --texto-secundario: #64748b;
    --texto-tenue: #94a3b8;
    --borde: #e2e8f0;
    --acento: #3b82f6;
    --acento-hover: #2563eb;
    --acento-suave: #eff6ff;
    --verde: #10b981;
    --verde-suave: #ecfdf5;
    --rojo: #ef4444;
    --rojo-suave: #fef2f2;
    --ambar: #f59e0b;
    --ambar-suave: #fffbeb;
    --sombra: 0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
    --radio: 10px;
}

[data-tema="oscuro"] {
    --bg: #0f1115;
    --bg-sidebar: #0a0b0e;
    --surface: #181b21;
    --surface-alt: #1f2329;
    --texto: #e7e9ee;
    --texto-secundario: #9aa1ad;
    --texto-tenue: #6b7280;
    --borde: #2a2e36;
    --acento: #6c87ff;
    --acento-hover: #8197ff;
    --acento-suave: #1c2440;
    --verde: #34d399;
    --verde-suave: #103225;
    --rojo: #f87171;
    --rojo-suave: #3a1d1d;
    --ambar: #fbbf24;
    --ambar-suave: #3a2e10;
    --sombra: 0 1px 2px rgba(0,0,0,0.3), 0 4px 12px rgba(0,0,0,0.25);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Inter, Arial, sans-serif;
    background: var(--bg);
    color: var(--texto);
    transition: background 0.15s ease, color 0.15s ease;
}
a { color: var(--acento); }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 220px;
    background: var(--bg-sidebar);
    color: var(--texto);
    display: flex;
    flex-direction: column;
    padding: 20px 14px;
    flex-shrink: 0;
    border-right: 1px solid var(--borde);
    box-shadow: 1px 0 0 var(--borde);
}
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 10px 22px;
}
.sidebar-logo {
    width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
    background: var(--acento-suave);
    display: flex; align-items: center; justify-content: center;
    overflow: visible;
}
.sidebar-logo:has(img) { background: none; }
.sidebar-logo-marca { color: var(--acento); font-weight: 800; font-size: 15px; font-family: Georgia, serif; }
.sidebar-logo-img { width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 2px 4px rgba(0,0,0,.25)); }
.sidebar-brand-texto { font-size: 16px; font-weight: 700; letter-spacing: 0.2px; color: var(--texto); }
.sidebar-brand-texto .acento { color: var(--acento); }

.sidebar-grupo { margin-bottom: 4px; }
.sidebar-grupo summary {
    list-style: none;
    cursor: pointer;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--texto-tenue);
    padding: 10px 12px 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
}
.sidebar-grupo summary::-webkit-details-marker { display: none; }
.sidebar-grupo summary::after {
    content: "›";
    font-size: 14px;
    transition: transform 0.15s ease;
    color: var(--texto-tenue);
}
.sidebar-grupo[open] summary::after { transform: rotate(90deg); }
.sidebar-subitems { display: flex; flex-direction: column; gap: 2px; padding-bottom: 6px; }

.tarjeta-bi {
    background: linear-gradient(145deg, rgba(108,135,255,0.14), rgba(108,135,255,0.03));
    border: 1px solid rgba(108,135,255,0.25);
    border-radius: 16px;
    padding: 18px 20px;
    backdrop-filter: blur(6px);
    position: relative;
    overflow: hidden;
}
.tarjeta-bi::before {
    content: "";
    position: absolute; top: -30%; right: -20%;
    width: 120px; height: 120px; border-radius: 50%;
    background: radial-gradient(circle, rgba(108,135,255,0.25), transparent 70%);
}
.tarjeta-bi.verde { background: linear-gradient(145deg, rgba(34,197,94,0.14), rgba(34,197,94,0.03)); border-color: rgba(34,197,94,0.25); }
.tarjeta-bi.verde::before { background: radial-gradient(circle, rgba(34,197,94,0.25), transparent 70%); }
.tarjeta-bi.naranja { background: linear-gradient(145deg, rgba(245,158,11,0.14), rgba(245,158,11,0.03)); border-color: rgba(245,158,11,0.25); }
.tarjeta-bi.naranja::before { background: radial-gradient(circle, rgba(245,158,11,0.25), transparent 70%); }
.tarjeta-bi.morado { background: linear-gradient(145deg, rgba(168,85,247,0.14), rgba(168,85,247,0.03)); border-color: rgba(168,85,247,0.25); }
.tarjeta-bi.morado::before { background: radial-gradient(circle, rgba(168,85,247,0.25), transparent 70%); }
.tarjeta-bi.rojo { background: linear-gradient(145deg, rgba(239,68,68,0.14), rgba(239,68,68,0.03)); border-color: rgba(239,68,68,0.25); }
.tarjeta-bi.rojo::before { background: radial-gradient(circle, rgba(239,68,68,0.25), transparent 70%); }
.tarjeta-bi-valor { font-size: 28px; font-weight: 800; margin: 4px 0 0; position: relative; z-index: 1; }
.tarjeta-bi-titulo { font-size: 12.5px; color: var(--texto-secundario); margin: 0; position: relative; z-index: 1; }

.tarjeta-mesas-grande {
    background: linear-gradient(135deg, rgba(108,135,255,0.16), rgba(168,85,247,0.10));
    border: 1px solid rgba(108,135,255,0.3);
    border-radius: 18px;
    padding: 22px;
    backdrop-filter: blur(8px);
}
.mesas-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.mesa-chip {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(108,135,255,0.4);
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 12px;
    min-width: 80px;
}
.mesa-chip .num { font-weight: 700; font-size: 14px; display:block; }
.mesa-chip-alerta { background: rgba(239,68,68,0.15); border-color: rgba(239,68,68,0.5); color: #fca5a5; }

.grafica-barras { display: flex; flex-direction: column; gap: 10px; }
.fila-barra { display: flex; align-items: center; gap: 10px; }
.fila-barra-etiqueta { width: 130px; font-size: 12.5px; flex-shrink: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fila-barra-pista { flex: 1; height: 16px; background: var(--surface-alt); border-radius: 8px; overflow: hidden; }
.fila-barra-relleno { height: 100%; border-radius: 8px; transition: width 0.4s ease; }
.fila-barra-valor { width: 70px; text-align: right; font-size: 12.5px; font-weight: 600; flex-shrink: 0; }

.icono-nav {
    width: 16px; height: 16px; flex-shrink: 0;
    fill: none; stroke: currentColor; stroke-width: 2;
    stroke-linecap: round; stroke-linejoin: round;
    opacity: 0.75;
}
.sidebar-nav a {
    display: flex; align-items: center; gap: 10px;
}
.sidebar-link-inicio {
    padding: 9px 12px; border-radius: 8px; margin-bottom: 10px;
    font-weight: 600; font-size: 13.5px;
}
.sidebar-link-inicio .icono-nav { width: 17px; height: 17px; }
.sidebar-unidad-activa { align-items: flex-start; }
.sidebar-unidad-activa .icono-nav { margin-top: 2px; }
.sidebar-unidad-activa {
    background: rgba(108,135,255,0.12);
    border: 1px solid rgba(108,135,255,0.25);
    border-radius: 6px;
    margin-bottom: 4px;
    font-weight: 600;
}
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.sidebar-nav a {
    color: var(--texto-secundario);
    text-decoration: none;
    font-size: 14px;
    padding: 9px 12px;
    border-radius: 8px;
    transition: all .12s;
}
.sidebar-nav a:hover { background: var(--acento-suave); color: var(--acento); }
.sidebar-nav a.activo { background: var(--acento); color: white; }
.sidebar-seccion { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--texto-tenue); padding: 16px 12px 4px; }
.contador-alerta { background: var(--rojo); color: white; font-size: 11px; font-weight: 700; padding: 1px 6px; border-radius: 10px; margin-left: 6px; }

.alerta-dispositivo {
    display: flex; align-items: center; gap: 12px;
    background: var(--ambar-suave); color: var(--ambar);
    border-radius: 8px; padding: 12px 16px; margin-bottom: 18px; font-size: 14px;
}
.alerta-dispositivo .boton-secundario { margin-left: auto; padding: 6px 12px; font-size: 13px; }

.sidebar-footer { border-top: 1px solid var(--borde); padding-top: 12px; margin-top: 8px; }
.sidebar-user { font-size: 13px; color: var(--texto-secundario); padding: 0 12px 8px; }
.sidebar-user .badge { display: inline-block; margin-top: 4px; background: var(--acento-suave); color: var(--acento); padding: 2px 8px; border-radius: 10px; font-size: 11px; }
.sidebar-acciones { display: flex; gap: 8px; padding: 0 12px; }
.boton-tema {
    background: var(--surface-alt); border: 1px solid var(--borde); color: var(--texto-secundario);
    border-radius: 8px; padding: 7px 10px; font-size: 13px; cursor: pointer; flex: 1;
}
.boton-tema:hover { background: rgba(255,255,255,0.14); }
.link-logout { color: #c7cad1; font-size: 13px; text-decoration: none; padding: 7px 10px; }
.link-logout:hover { color: #fff; }

.main-area { flex: 1; min-width: 0; }
.main-area.sin-sidebar { width: 100%; }
.container { max-width: 1320px; margin: 0 auto; padding: 36px 28px; }
.container-login { max-width: 100%; padding: 0; }

.login-shell { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box {
    background: var(--surface);
    border: 1px solid var(--borde);
    border-radius: 16px;
    padding: 36px;
    width: 100%;
    max-width: 360px;
    box-shadow: var(--sombra);
    text-align: center;
}
.login-logo-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}
.login-logo-circulo {
    width: 120px;
    height: 120px;
    object-fit: contain;
    filter: drop-shadow(0 10px 18px rgba(0,0,0,.28));
}
.login-box h1 { margin: 0 0 4px; font-size: 22px; }
.login-box h1 span { color: var(--acento); }
.login-banner { max-width: 100%; max-height: 140px; display: block; margin: 0 auto 4px; }
.subtitulo { color: var(--texto-secundario); margin-top: 0; margin-bottom: 24px; font-size: 13px; }
.login-box label { display: block; text-align: left; }
.login-box input { text-align: left; }
.login-tema { position: fixed; top: 20px; right: 20px; }

.formulario-box {
    background: var(--surface);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    padding: 28px 32px;
    max-width: 480px;
    box-shadow: var(--sombra);
}
.formulario-ancho { max-width: 640px; }

label { display: block; font-size: 13px; font-weight: 600; margin: 14px 0 5px; color: var(--texto-secundario); }
input, select {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--borde);
    border-radius: 8px;
    font-size: 14px;
    background: var(--surface-alt);
    color: var(--texto);
}
input:focus, select:focus { outline: none; border-color: var(--acento); }
input::placeholder { color: var(--texto-tenue); }
input:disabled { opacity: 0.6; }

button, .boton, .boton-secundario {
    display: inline-block;
    margin-top: 18px;
    padding: 10px 18px;
    border-radius: 8px;
    border: none;
    background: var(--acento);
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
button:hover, .boton:hover { background: var(--acento-hover); }
.boton-secundario { background: var(--surface-alt); color: var(--texto); border: 1px solid var(--borde); margin-left: 8px; }
.boton-secundario:hover { background: var(--borde); }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-weight: normal; margin-top: 16px; color: var(--texto); }
.checkbox-label input { width: auto; }

fieldset { border: 1px solid var(--borde); border-radius: 8px; margin: 16px 0 0; padding: 12px 14px; }
fieldset legend { font-size: 12px; color: var(--texto-secundario); padding: 0 4px; }

.encabezado-seccion { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.encabezado-seccion h2 { margin: 0; font-size: 19px; }
.encabezado-seccion p { color: var(--texto-secundario); font-size: 13px; margin: 4px 0 0; }

.tabla-wrap { background: var(--surface); border: 1px solid var(--borde); border-radius: var(--radio); overflow-x: auto; overflow-y: hidden; box-shadow: var(--sombra); }
.tabla { width: 100%; border-collapse: collapse; }
.tabla th, .tabla td { padding: 11px 16px; border-bottom: 1px solid var(--borde); text-align: left; font-size: 14px; }
.tabla tr:last-child td { border-bottom: none; }
.tabla th { background: var(--surface-alt); font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--texto-secundario); font-weight: 600; }
.th-ordenable { cursor: pointer; user-select: none; position: relative; padding-right: 22px !important; }
.th-ordenable:hover { color: var(--texto-principal); }
.th-ordenable::after { content: "⇕"; position: absolute; right: 8px; opacity: 0.35; font-size: 10px; }
.th-ordenable.orden-asc::after { content: "↑"; opacity: 1; color: var(--acento); }
.th-ordenable.orden-desc::after { content: "↓"; opacity: 1; color: var(--acento); }
.tabla tbody tr:hover { background: var(--surface-alt); }

.pill { padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; display: inline-block; }
.pill-superusuario { background: var(--rojo-suave); color: var(--rojo); }
.pill-normal { background: var(--acento-suave); color: var(--acento); }
.pill-pendiente { background: var(--ambar-suave); color: var(--ambar); }
.pill-ok { background: var(--verde-suave); color: var(--verde); }
.pill-error { background: var(--rojo-suave); color: var(--rojo); }
.estado-activo { color: var(--verde); font-weight: 600; font-size: 13px; }
.estado-inactivo { color: var(--texto-tenue); font-size: 13px; }
.link-eliminar { background: none; border: none; color: var(--rojo); cursor: pointer; text-decoration: underline; font-size: 13px; padding: 0; }
.texto-discreto { color: var(--texto-tenue); font-size: 12px; }
.acciones-fila { display: flex; gap: 10px; align-items: center; }
.acciones-fila a, .acciones-fila button { font-size: 13px; }

.sin-permisos, .sin-conexion {
    background: var(--surface); border: 1px solid var(--borde); border-radius: var(--radio);
    padding: 32px; text-align: center; color: var(--texto-secundario);
}

.tarjeta { background: var(--surface); border: 1px solid var(--borde); border-radius: var(--radio); padding: 24px 28px; box-shadow: var(--sombra); }
.estado-conexion { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 20px; }
.estado-conexion.ok { background: var(--verde-suave); color: var(--verde); }
.estado-conexion.error { background: var(--rojo-suave); color: var(--rojo); }
.estado-verde { background: var(--verde-suave) !important; }
.estado-rojo { background: var(--rojo-suave) !important; }
.estado-amarillo { background: var(--ambar-suave) !important; }
.estado-gris { opacity: 0.55; }
.estado-conexion.pendiente { background: var(--ambar-suave); color: var(--ambar); }
.punto { width: 8px; height: 8px; border-radius: 50%; background: currentColor; flex-shrink: 0; }

.modulo-titulo { font-size: 12px; text-transform: uppercase; color: var(--texto-tenue); margin: 18px 0 6px; font-weight: 600; }
.permisos-lista { display: flex; flex-direction: column; gap: 6px; margin-bottom: 4px; padding: 4px 0 10px 4px; }
.permisos-lista .checkbox-label { margin-top: 0; font-size: 14px; }
.permisos-categoria { border: 1px solid var(--borde); border-radius: 8px; margin-bottom: 8px; padding: 0 12px; }
.permisos-categoria summary {
    list-style: none; cursor: pointer; padding: 10px 0;
    display: flex; align-items: center; justify-content: space-between;
    font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em;
}
.permisos-categoria summary::-webkit-details-marker { display: none; }

.alerta { padding: 11px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 14px; }
.alerta-error { background: var(--rojo-suave); color: var(--rojo); }
.alerta-ok { background: var(--verde-suave); color: var(--verde); }