* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f4f6f8;
    color: #1f2937;
}

a { color: inherit; }

.contenedor-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.tarjeta-login {
    width: 100%;
    max-width: 430px;
    background: #fff;
    border-radius: 14px;
    padding: 32px;
    box-shadow: 0 10px 35px rgba(0,0,0,.10);
}

.marca h1 { margin: 0 0 8px; }

.marca p,
.subtitulo {
    color: #64748b;
    line-height: 1.45;
}

label {
    display: block;
    font-weight: 600;
    margin: 10px 0 7px;
}

input,
select,
textarea {
    width: 100%;
    padding: 12px 13px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 15px;
    background: #fff;
}

button {
    padding: 11px 15px;
    border: 0;
    border-radius: 8px;
    background: #1e3a8a;
    color: #fff;
    cursor: pointer;
}

.tarjeta-login button {
    width: 100%;
    margin-top: 22px;
    font-size: 16px;
}

.boton-secundario {
    background: #475569;
}

.pie-login {
    margin-top: 26px;
    font-size: 13px;
    color: #64748b;
    text-align: center;
}

.alerta {
    padding: 11px 13px;
    border-radius: 8px;
    margin: 12px 0;
}

.alerta.error {
    background: #fee2e2;
    color: #991b1b;
}

.alerta.exito {
    background: #dcfce7;
    color: #166534;
}

.barra-superior {
    min-height: 62px;
    background: #0f172a;
    color: #fff;
    padding: 12px 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.barra-superior span {
    margin-left: 12px;
    color: #cbd5e1;
    font-size: 13px;
}

.estructura {
    display: flex;
    min-height: calc(100vh - 62px);
}

.menu-lateral {
    width: 230px;
    background: #fff;
    border-right: 1px solid #e2e8f0;
    padding: 22px 12px;
}

.menu-lateral a {
    display: block;
    text-decoration: none;
    padding: 11px 13px;
    border-radius: 8px;
    margin-bottom: 5px;
}

.menu-lateral a:hover {
    background: #eaf0ff;
}

.contenido-principal {
    flex: 1;
    padding: 28px;
    max-width: 1450px;
}

.rejilla {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 18px;
}

.tarjeta {
    background: #fff;
    border-radius: 12px;
    padding: 22px;
    box-shadow: 0 4px 18px rgba(0,0,0,.06);
}

.tarjeta h3 {
    margin-top: 0;
    color: #475569;
    font-size: 15px;
}

.tarjeta p {
    font-size: 20px;
    font-weight: 700;
}

.tarjeta.grande {
    margin-top: 20px;
}

.tarjeta.grande p {
    font-size: 15px;
    font-weight: 400;
    line-height: 1.55;
}

.formulario-linea {
    display: flex;
    gap: 10px;
}

.formulario-linea input {
    flex: 1;
}

.formulario-equipo {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 15px;
}

.formulario-equipo .campo-completo {
    grid-column: 1 / -1;
}

.tabla-contenedor {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    text-align: left;
    padding: 11px;
    border-bottom: 1px solid #e2e8f0;
    font-size: 14px;
    vertical-align: top;
}

th {
    background: #f8fafc;
}

.estado {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.estado.activo {
    background: #dcfce7;
    color: #166534;
}

.estado.inactivo {
    background: #fee2e2;
    color: #991b1b;
}

@media (max-width: 800px) {
    .estructura {
        display: block;
    }

    .menu-lateral {
        width: 100%;
        border-right: 0;
        border-bottom: 1px solid #e2e8f0;
    }

    .barra-superior {
        align-items: flex-start;
        flex-direction: column;
    }

    .formulario-linea {
        display: block;
    }

    .formulario-linea button {
        margin-top: 10px;
        width: 100%;
    }

    .formulario-equipo {
        grid-template-columns: 1fr;
    }

    .formulario-equipo .campo-completo {
        grid-column: auto;
    }
}